CN207666885U - Glue transport system - Google Patents
Glue transport system Download PDFInfo
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- CN207666885U CN207666885U CN201720741538.7U CN201720741538U CN207666885U CN 207666885 U CN207666885 U CN 207666885U CN 201720741538 U CN201720741538 U CN 201720741538U CN 207666885 U CN207666885 U CN 207666885U
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- glue
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Abstract
A kind of glue transport system, including：Change glue tank, compressed air pipe, glue outflow pipeline, the first glue box and the second glue box, the first liquid level sensor and the second liquid level sensor and the first pneumatic control valve and the second pneumatic control valve.This glue transport system has the advantages that manufacturing cost is low, simple and practical, easy to clean, system is interior and is maximally utilized without remaining glue, material, saves preparation and production post purge time before production.
Description
Technical field
The utility model is related to field of pharmaceutical equipment, and glue is delivered to pill from glue tank is changed in particular to a kind of
Glue transport system in machine glue distributor, more particularly to a kind of glue transport system for soft capsule device for producing a granulated material.
Background technology
As shown in Figure 1, the glue transport system for being commonly used for soft capsule device for producing a granulated material includes：Change glue tank 1, glue box 5, supply
Glue pump 7 and switch board 9；Change glue tank 1 for storing glue；Gumming pump 7 is used to glue being supplied to via pipeline from glue tank 1 is changed
Glue box 5；Glue box 5 are used to receive the glue from glue tank 1 is changed；Switch board 9 is used to control the operation of gumming pump 7.
The pipeline of connectionization glue tank 1, gumming pump 7 and glue box 5 is provided with pipeline heater 3, and pipeline heater 3 is used for pipe
Glue in road is heated, and causes to solidify since temperature reduces when not flowing for a long time to avoid glue, to influence
Product quality.
Liquid level sensor 4 is provided in glue box 5.Liquid level sensor 4 is used to detect the height of the liquid level in glue box 5, and root
Different signals is exported to switch board 9 according to the height of liquid level.
Programmable controller (PLC) is provided in switch board 9.PLC receives the signal from liquid level sensor 4, and is based on
The signal received controls the frequency of frequency converter, to control the rotating speed of gumming pump 7.
But according to the above-mentioned prior art, the component and control element in system are more, this can lead to the manufacture of system
Cost increases, and space is needed to carry out separately installed switch board.
In addition, due to technological reason, glue pipeline needs whole heating and thermal insulation.Due to system control glue pipeline compared with
It is long, it is therefore desirable at least 5 groups of heater, and it is not appropriate to the heater heated to gumming pump.Work as equipment downtime
And glue is for a long time when flowing, the glue temperature in gumming pump can reduce, this may result in generation solidification phenomenon, Jin Erying
Ring product quality.
In addition, in the final stage of single batch production, can run out of steam after passing fully through gumming pump due to glue, so
It can cause to remain a large amount of glues with pipeline thereafter inside gumming pump.For the glue that these can not be used, Zhi Neng
It is rinsed out with ejected wash water when pipeline cleaning.Larger wastage of material can be caused in this way, to improve the production cost of enterprise.
In addition, due to having dead angle in the cavity of gumming pump, cleaning every time needs gumming pump dismantling cleaning, this can increase
Add cleaning time.
In addition, when the glue for changing glue tank is ready for use, equipment downtime, glue will produce reflux, cause in pipeline
Air entrance is had, and these air can pour glue box when being switched on again, be promoted so as to cause product quality risk.
Utility model content
In order to solve to come across the above problem and/or other problems of correlative technology field, the utility model is dedicated to carrying
For such a glue transport system：Detection signal of the system based on liquid level sensor, using compressed air by glue from
Change glue tank and be supplied to glue box, to enable the glue in system to be all provided to glue box, and easily controls in glue box
Glue amount.
Various aspects according to the present utility model provide a kind of glue transport system, may include：Change glue tank,
For storing glue；Compressed air pipe is connected to describedization glue tank and pure compressed air is supplied to describedization glue tank；
Glue flows out pipeline, the bottom of one end being connected to glue tank, and other end bifurcated is the first branch and the second branch；First glue box
With the second glue box, first glue box flow out the first branch of pipeline by being connected to glue tank by the glue, and described second
Glue box flow out the second branch of pipeline by being connected to glue tank by the glue, to make the first glue box and the second glue box receive
From the glue for changing flow container；First liquid level sensor and the second liquid level sensor, first liquid level sensor are set to described
First glue box, second liquid level sensor are set to second glue box, are respectively used to the first glue box of detection and the second glue box
The liquid level of interior glue；First pneumatic control valve and the second pneumatic control valve, first pneumatic control valve are set to described
One branch is turned on and off according to the output signal of the first liquid level sensor, and second pneumatic control valve is set to described
The second branch is turned on and off according to the output signal of the second liquid level sensor.
When the first liquid level sensor detects that the glue liquid level in the first glue box is more than first predetermined value, the first pneumatic control
Valve processed can close, and pipeline can not be flowed out via glue and flow to the first glue box from glue tank is changed by changing the glue in glue tank；When
When two liquid level sensors detect that the glue liquid level in the second glue box is more than first predetermined value, the second pneumatic operated valve can close, and change
Glue in glue tank can not flow out pipeline via glue and flow to the second glue box from glue tank is changed；When the first liquid level sensor detects
When being less than second predetermined value to the glue liquid level in the first glue box, the first pneumatic control valve can be opened, and change the glue in glue tank
Pipeline can be flowed out via glue and flow to the first glue box from glue tank is changed；When the second liquid level sensor detects in the second glue box
When glue liquid level is less than second predetermined value, the second pneumatic operated valve can be opened, and the glue changed in glue tank can be via glue effuser
Road and from change glue tank flow to the second glue box.
First pneumatic control valve may include：First solenoid valve, according to the output signal of the first liquid level sensor
And it runs；First operated pneumatic valve is turned on and off according to the operation of the first solenoid valve.
Second pneumatic control valve may include：Second solenoid valve, according to the output signal of the second liquid level sensor
And it runs；Second operated pneumatic valve, is turned on and off according to the operation of second solenoid valve.
In addition, the glue transport system may include the first button switch, it is used to control the controlled of glue transport system
State, when first switch button is pressed, system is in and manually controls state, when first switch button is in reset state
When, system is in automatic control state.
In addition, the glue transport system may include the second button switch, the case where manually controlling state is in system
Under, when second switch button is pressed, glue can not flow to the first glue box and the second glue box from glue tank is changed, and work as second switch
When button is in reset state, glue can flow to the first glue box and the second glue box from glue tank is changed.
In addition, the glue transport system may include pipeline heater, it is sheathed on the outside of the glue outflow pipeline,
It is heated for flowing out the glue in pipeline to the glue.
In addition, the glue transport system may include pressure reducing valve, between being set to compressed air pipe and changing glue tank, with
Pressure in adjustingization glue tank.
In addition, the glue transport system may include upper process valve, it is set to the glue outflow pipeline, and be located at
Change between glue tank and pneumatic control valve, whether the upper process valve controls glue according to the signal of upper process can be from change glue tank
Outflow.
In addition, the glue transport system may include pellet processing machine, it is set to the lower section of glue box, is flowed out with receiving from glue box
Glue.
Glue transport system according to the present utility model, the glue in system can all be provided to glue box, and hold
The amount of glue in control glue box of changing places, so that the manufacturing cost of system reduces and structure is simplified, and system
Interior without remaining glue, to easy to clean, material maximally utilizes, and prepares and produce post purge time before saving production.
Description of the drawings
The utility model or more will be more clearly understood in the detailed description presented when by later in conjunction with attached drawing
With other purposes, feature and advantage, in the drawings：
Fig. 1 is the schematic diagram for the glue transport system for showing full-automatic device for producing a granulated material in the prior art；
Fig. 2 is the schematic diagram for showing glue transport system according to the present utility model；
Fig. 3 schematically shows the schematic diagram of the control element of glue transport system according to the present utility model.
Specific implementation mode
Each embodiment of the utility model is will be detailed with reference to, the example of these embodiments is displayed on attached drawing
In and be described as follows.Although the utility model will be combined with exemplary implementation scheme and be described, it should be understood that this specification
It is not intended to the utility model being limited to those exemplary implementation schemes.On the contrary, the utility model is intended to not only cover these
Exemplary implementation scheme, and covering can be included in the spirit and model of the utility model being defined by the appended claims
Various selection forms, modification, equivalent form and other embodiments within enclosing.
Fig. 2 is the schematic diagram according to the glue transport system of each embodiment of the utility model.With reference to figure 2, glue
Transport system may include：Change glue tank 100, compressed air pipe 900, glue outflow pipeline 1100, glue box 500, level sensing
Device 400 and pneumatic control valve 300.
Glue can be stored by changing glue tank 100.Compressed air pipe 900 can be connected to by changing the top of glue tank 100, change glue tank
100 bottom can be connected to the first end of glue outflow pipeline 1100.Such as cylinder, length can be formed as by changing glue tank 100
The shapes such as cube, square, but it is not limited to this.In addition, (for example, 316L stainless steels) can be made of metal by changing glue tank 100,
But it is not limited to this.
When compressed air is from 900 inflowization glue tank 100 of compressed air pipe, change the pressure rise in glue tank 100,
When changing the pressure in glue tank 100 more than ambient pressure, glue flows out pipeline 1100 via glue and flows out.Particularly, it is working
Period, it is about 50Pa to 150Pa, preferably 80Pa to change the pressure in glue tank 100 to be.
Compressed air pipe 900 will change glue tank 100 and be connected with the supplier tank for supplying compressed air, be used for pure pressure
Contracting air supply extremely changes glue tank 100.(for example, 316L stainless steels) is made by metal or plastics in compressed air pipe 900, has circle
Tee section, but it is not limited to this.In addition, the pressure of the compressed air in compressed air pipe 900 is about 50Pa to 150Pa,
Preferably 80Pa.
Glue flows out pipeline 1100 and is connected glue tank 100 is changed with glue box 500 (for example, welding, grafting etc.), to making
Glue in glue tank 100 can flow to glue box 500.Glue flows out the bottom of first end the being connected to glue tank 100 of pipeline 1100,
The other end bifurcated that glue flows out pipeline 1100 is the first branch 1101 and the second branch 1102.Glue flows out pipeline 1100 can be with
With circular cross-section, but there can also be other shapes (for example, rectangle etc.).Glue flows out pipeline 1100 by metal material
(for example, 316L stainless steels) is made, the metal material can with the material identical of being made glue tank 1, or can also be made
The material for changing glue tank 1 is different.Glue box 500 are set to glue outflow pipeline 1100, and positioned at the downstream for changing glue tank 100, are used for
It receives from the glue for changing glue tank 100, and glue is supplied to pellet processing machine 600 to make capsule.
Preferably, glue box 500 may include the first glue box 510 and the second glue box 520, and the first glue box 510 pass through glue stream
Go out the first branch 1101 that the second end bifurcated of pipeline 1100 goes out and being connected to glue tank 100, the second glue box 520 pass through glue stream
Go out the second branch 1102 that the second end bifurcated of pipeline 1100 goes out and being connected to glue tank.
As shown in Fig. 2, the first glue box 510 are cylinder on top, it is inverted cone in lower part；The top of the cylinder
With entrance, so that glue can flow into；The bottom (near one end of pellet processing machine) of the inverted cone has outlet, so that
Glue can flow out.First glue box 510 are made of copper or stainless steel, preferably copper.
In the preferred embodiment of the application, the second glue box 520 can have shape identical with the first glue box 510,
Certainly, in other embodiments can also have different shapes, and the second glue box 520 can by with the first glue box 510
Identical or different material is made.
Liquid level sensor 400 is set to glue box 500 and is electrically connected to pellet processing machine switch board 700, is used to detect glue box
The liquid level of glue in 500, and by sensing signal transmission to pill machine controller 700.
Preferably, liquid level sensor 400 may include the first liquid level sensor 410 and the second liquid level sensor 420.
First liquid level sensor 410 is set to the first glue box 510, can detect the amount of the glue in the first glue box 510,
And by the signal transmission of the amount for being related to glue detected to pellet processing machine switch board 700.Specifically, when the first liquid level sensor
410 when detecting that glue level in the first glue box 510 is more than the first predeterminated level, the first signal of output to pellet processing machine switch board
700；When the first liquid level sensor 410 detects that the glue level in the first glue box 510 is less than the second predeterminated level, output the
Binary signal is to pellet processing machine switch board 700.
Here, the first liquid level sensor 410 is not limited to this, but may include that can measure in the first glue box 510
Any sensor (for example, inductance type transducer) of the amount of glue.
Second liquid level sensor 420 is similar with the first liquid level sensor 410, is not described herein.In addition, the second liquid
Level sensor 420 may be used and 410 different types of sensor of the first liquid level sensor.
Pneumatic control valve 300 is set to glue outflow pipeline 1100, and positioned at changing between glue tank 100 and glue box 500, connects
The output signal from liquid level sensor 400 is received, and is turned on and off according to the output signal of liquid level sensor 400.According to
Pneumatic control valve 300 is turned on and off, and the liquid level of the glue in glue box 500 can be maintained at certain level, to ensure from
The glue that glue box 500 flow out has the flow velocity of stabilization appropriate.
Preferably, pneumatic control valve 300 may include the first pneumatic control valve 310 and the second pneumatic control valve 320.Below
First pneumatic control valve 310 will be described in detail.
First pneumatic control valve 310 is set to the first branch 1101 of glue outflow pipeline 1100, and positioned at change glue tank
Downstream.When the first pneumatic control valve 310 receives the first signal from liquid level sensor 400, the first pneumatic control valve 310
It closes, the glue in glue outflow pipeline 1100 cannot flow to the first glue box 510；Come when the first pneumatic control valve 310 receives
From the second signal of liquid level sensor 400 when, the first pneumatic control valve 310 open, glue flow out pipeline 1100 in glue not
The first glue box 510 can be flow to.
In other words, when the glue in the first glue box 510 is excessive, the first pneumatic control valve 310 is closed, to prevent glue stream
The glue gone out in pipeline 1100 continues towards the first glue box 510；When the glue in the first glue box 510 is very few, the first pneumatic control
Valve 310 processed is opened, and the first glue box 510 are flowed to allow glue to flow out the glue in pipeline 1100.
First pneumatic control valve 310 may include the first solenoid valve 311 and the first operated pneumatic valve 312, the first operated pneumatic valve
312 are turned on and off according to the operation of the first solenoid valve 311.It should be understood that the first pneumatic control valve 310 is not limited to
This, but include all kinds of control valves that can realize fluid block function.
Second pneumatic control valve 320 is similar with the first pneumatic control valve 310, therefore no longer it is described in detail.
It should be noted that pneumatic control valve 320 may be used and 310 different types of control valve of the first pneumatic control valve.
Further, glue transport system may include pellet processing machine 600, can be set to the lower section of glue box 500, to receive
Glue from glue box 500.
Further, glue transport system may include upper process valve 200, be set to glue outflow pipeline 1100, and
Between pneumatic control valve 500 and change glue tank 100.Upper process valve 200 can be according to the glue for example changed in glue tank 100
Quality and be turned on and off, to ensure the quality of glue.
Specifically, for example, when the quality for changing the glue in glue tank 100 reaches standard, upper process is by upper process valve
200 controls is open, and when the quality for changing the glue in glue tank 100 is not up to standard, upper process controls upper process valve 200
To close.
Further, glue transport system may include pipeline heater 800, be sheathed on glue outflow pipeline 1100, from
And the glue in pipeline 11 is flowed out to glue and is heated, it prevents from influencing product quality since glue solidifies.Specifically, pipe
Channel heater 800 is about 55-65 DEG C temperature, preferably 60 DEG C degree at runtime.
Preferably, can a pipeline heater 800 be only set to glue and flows out pipeline 1100.But this practicality is new
Type is not limited to this, and multiple pipeline heaters 800 can also be set to glue outflow pipeline 1100.
Further, glue transport system may include pressure reducing valve 1000, compressed air pipe 900 is set to, according to change
Pressure size in glue tank 100 and be turned on and off, to which the pressure changed in glue tank 100 is maintained at a certain range.The decompression
Valve 1000 can be manually controlled or be automatically controlled.
Fig. 3 is the schematic diagram according to the control element of the glue transport system of each embodiment of the utility model.
With reference to figure 3, the control element of glue transport system may include：Electromagnetic valve coil KM, intermediate relay KA, first
Switch SB1 and second switch SB2.
Preferably, electromagnetic valve coil KM includes the first electromagnetic valve coil KM1 and second solenoid valve coil KM2, intermediate relay
Device KA includes the first intermediate relay KA1 and the second intermediate relay KA2.The first electromagnetic valve coil KM1 is described more fully below
With the operation of the first intermediate relay KA1.
As shown in figure 3, first switch SB1 is self-locking button switch, it is used to the control of glue transport control system be place
In automatically controlling or manually control.Specifically, when first switch SB1 is pressed, glue transport control system is in automatic control
State processed, when first switch SB1 is in reset state, glue transport control system is in and manually controls state.
When glue transport control system is in automatic control state, controlled according to the sensing signal of liquid level sensor 400
Pneumatic control valve 300 processed.Specifically, when first switch SB1 is pressed, the normally-closed contact of SB1 disconnects and normally opened contact is led
Logical, liquid level sensor 400 is powered.Preferably, liquid level sensor 400 is the sensor of PNP types.
In the case, when the first liquid level sensor 410 detects that the liquid level in the first glue box 510 is more than first predetermined value
When, the first liquid level sensor 410 exports high level, the coil in the first intermediate relay KA1 is connected, so that among first
The normally opened contact of relay KA1 is closed, electric to make the first electromagnetic valve coil KM1 obtain, the action of the first solenoid valve 311, the first gas
Movable valve 312 is closed, and is stopped for glue to make the first pneumatic control valve 310 close.
When the first liquid level sensor 410 detects that the liquid level in the first glue box 510 is less than second predetermined value, the first liquid level
Sensor 410 exports low level, to disconnect the coil in the first intermediate relay KA1 so that the first intermediate relay KA1's is normal
Contact disconnection is opened, to make the first electromagnetic valve coil KM1 dead electricity, the first solenoid valve 311 be failure to actuate, operated pneumatic valve 312 is opened, from
And the first pneumatic control valve 310 is made to open and start for glue.
When glue transport system, which is in, manually controls state, it is pneumatic to control first according to the operation of second switch SB2
Control valve 310.Specifically, when first switch SB1 is in reset state, the normally-closed contact of SB1 is closed and normally opened contact is disconnected
It opens, liquid level sensor 400 powers off.
In the case, when second switch SB2 is pressed, normally opened contact be closed so that electromagnetic valve coil KM obtain it is electric,
So that the first solenoid valve 311 and second solenoid valve 321 act, the first operated pneumatic valve 312 and second starts valve 322 and closes, from
And so that pneumatic control valve 300 is closed and stop for glue.
When second switch SB2 is in reset state, normally opened contact disconnects so that electromagnetic valve coil KM dead electricity, so that
First solenoid valve 311 and second solenoid valve 321 are failure to actuate, and the first operated pneumatic valve 312 and second starts valve 322 and opens, to
Pneumatic control valve 300 is opened and is started for glue.
It should be understood that the control system in the utility model is not limited to this, but include all this to may be implemented
The combination of all kinds of electric elements of control.
It can be substantially change in the specific embodiment of the utility model described herein, this modification falls into this
In the claimed spirit and scope of utility model.It should be pointed out that all items for including herein are illustrative and unlimited
The scope of the utility model processed.
Claims (10)
1. a kind of glue transport system, which is characterized in that including：
Change glue tank, is used to store glue；
Compressed air pipe is connected to describedization glue tank and pure compressed air is supplied to describedization glue tank；
Glue flows out pipeline, the bottom of one end being connected to glue tank, and other end bifurcated is the first branch and the second branch；
First glue box and the second glue box, first glue box flow out the first branch of pipeline by being connected to glue by the glue
Tank, second glue box by the glue flow out pipeline the second branch by being connected to glue tank, to make the first glue box with
Second glue box are received from the glue for changing flow container；
First liquid level sensor and the second liquid level sensor, first liquid level sensor is set to first glue box, described
Second liquid level sensor is set to second glue box, is respectively used to the liquid of detection the first glue box and the glue in the second glue box
Position；
First pneumatic control valve and the second pneumatic control valve, first pneumatic control valve are set to the first branch, according to
The output signal of first liquid level sensor and be turned on and off, second pneumatic control valve is set to the second branch, root
It is turned on and off according to the output signal of the second liquid level sensor.
2. glue transport system according to claim 1, it is characterised in that：
When the first liquid level sensor detects that the glue liquid level in the first glue box is more than first predetermined value, the first pneumatic control valve
It closes, pipeline can not be flowed out via glue and flow to the first glue box from glue tank is changed by changing the glue in glue tank；
When the second liquid level sensor detects that the glue liquid level in the second glue box is more than first predetermined value, the second pneumatic operated valve closes
It closes, pipeline can not be flowed out via glue and flow to the second glue box from glue tank is changed by changing the glue in glue tank；
When the first liquid level sensor detects that the glue liquid level in the first glue box is less than second predetermined value, the first pneumatic control valve
It opens, pipeline can be flowed out via glue and flow to the first glue box from glue tank is changed by changing the glue in glue tank；
When the second liquid level sensor detects that the glue liquid level in the second glue box is less than second predetermined value, the second pneumatic operated valve is opened
It opens, pipeline can be flowed out via glue and flow to the second glue box from glue tank is changed by changing the glue in glue tank.
3. glue transport system according to claim 1, which is characterized in that first pneumatic control valve includes：
First solenoid valve is run according to the output signal of the first liquid level sensor；
First operated pneumatic valve is turned on and off according to the operation of the first solenoid valve.
4. glue transport system according to claim 1, which is characterized in that second pneumatic control valve includes：
Second solenoid valve is run according to the output signal of the second liquid level sensor；
Second operated pneumatic valve, is turned on and off according to the operation of second solenoid valve.
5. glue transport system according to claim 1, which is characterized in that further comprise the first button switch, use
In control glue transport system slave mode,
When first switch button is pressed, system is in and manually controls state,
When first switch button is in reset state, system is in automatic control state.
6. glue transport system according to claim 5, which is characterized in that further comprise the second button switch, be
System is in the case of manually control state, and when second switch button is pressed, glue can not flow to first from glue tank is changed
Glue box and the second glue box, when second switch button is in reset state, glue can flow to the first glue box and the from glue tank is changed
Two glue box.
7. glue transport system according to claim 1, which is characterized in that further comprise pipeline heater, be arranged
The outside of pipeline is flowed out in the glue, is heated for flowing out the glue in pipeline to the glue.
8. glue transport system according to claim 1, which is characterized in that further comprise pressure reducing valve, be set to pressure
Between contracting air pipeline and change glue tank, with the pressure in adjustingization glue tank.
9. glue transport system according to claim 1, which is characterized in that further comprise process valve, be arranged
Pipeline is flowed out in the glue, and positioned at changing between glue tank and pneumatic control valve, the upper process valve is according to the letter of upper process
Number and control glue whether can from change glue tank outflow.
10. glue transport system according to claim 1, which is characterized in that further comprise pellet processing machine, be set to glue
The lower section of box, to receive the glue flowed out from glue box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720741538.7U CN207666885U (en) | 2017-06-23 | 2017-06-23 | Glue transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720741538.7U CN207666885U (en) | 2017-06-23 | 2017-06-23 | Glue transport system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207666885U true CN207666885U (en) | 2018-07-31 |
Family
ID=62953830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720741538.7U Expired - Fee Related CN207666885U (en) | 2017-06-23 | 2017-06-23 | Glue transport system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207666885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109106600A (en) * | 2017-06-23 | 2019-01-01 | 江苏恒瑞医药股份有限公司 | Glue transportation system and preparation method |
-
2017
- 2017-06-23 CN CN201720741538.7U patent/CN207666885U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109106600A (en) * | 2017-06-23 | 2019-01-01 | 江苏恒瑞医药股份有限公司 | Glue transportation system and preparation method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180731 |