CN115402549B

CN115402549B - Drip-proof filling machine

Info

Publication number: CN115402549B
Application number: CN202211056223.0A
Authority: CN
Inventors: 黎泽荣
Original assignee: Foshan Aeros Industrial Equipment Co ltd
Current assignee: Foshan Aeros Industrial Equipment Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2024-04-26
Anticipated expiration: 2042-08-31
Also published as: CN115402549A

Abstract

The utility model provides a drip proof liquid filling machine, including the motor, by the pump that the motor drove, have the filling head of drip proof valve, controlling means, its characterized in that is provided with the automatically controlled clutch that can realize the high frequency separation and reunion more than 60 times/minute between motor and the pump, the filling head that has the drip proof valve has a plurality ofly, the pump adopts the positive displacement pump, the pump provides the material to the filling head that has the drip proof valve of several simultaneously, controlling means controls clutch and drip proof valve work, through controlling each drip proof valve and open simultaneously and respectively control the closing of each drip proof valve, make each filling head simultaneously spun material volume the same. Compared with the prior art, the invention has the advantages of high frequency, multiple spray heads and accurate material pouring.

Description

Drip-proof filling machine

Technical Field

The invention relates to the technical field of filling, in particular to an anti-drip filling machine.

Background

The prior drip-proof filling machine comprises a PLC (1), wherein a servo motor driver (2), a servo motor (3) and an electromagnetic valve are respectively connected with the PLC (1), a mechanical seal (9) is arranged on the left side of the servo motor (3), a shared base (10) is arranged below the servo motor (3), a canning machine head (4) is arranged above the left side of the shared base (10), a rear cover (8) is arranged at the left end of the servo motor (3), a liquid outlet is arranged at the lower end of the servo motor (3), the liquid outlet of the servo motor (3) is connected with a drip-proof valve (6), the outside of the drip-proof valve (6) is connected with the electromagnetic valve (5), the canning machine head (4) comprises a pump body (4.6) and a gear box (4.7), the outside of the pump body (4.6) is provided with a shared base (10), the pump body (4.1) is fixedly arranged above the shared base (10), the pump body (4.1) is internally provided with a pump housing (4.1), the pump housing (4.4.1) is internally provided with a bearing (4.2), the bearing (4.3) is arranged in a synchronous gear housing (4.4), the bearing (4.3) is arranged in the synchronous gear housing (4.3), and the bearing (4.4.3) is synchronously rotatably and the bearing (4.3) is synchronously meshed with the gear pump, the operation precision is less than or equal to 2um, the operation speed of the servo motor 3 can be started and stopped for less than or equal to 0.2 seconds, the PLC controller 1 sets a valve opening signal, and the start of the anti-drip valve 6 is greater than 0.1 seconds to drive the servo motor 3 to operate, so that the filling liquid 1 is accurately sucked, the PLC controller 1 sets a stop signal to control the servo motor 3 to stop operation, and simultaneously sets a closing signal to control the delay of the anti-drip valve 6 to be more than or equal to 0.1 seconds.

The drip-proof filling machine is determined by the servo motor driving the pump body and the structure that the PLC controller 1 controls the servo motor 3 to start and stop so as to control the pump body to work, and power is applied to the pump body and the motor at the same time no matter the pump body is started or stopped, so that the pump body and the motor have relatively large inertia no matter the pump body is started or stopped, in this case, the accuracy of pumped materials is greatly influenced due to the inertia effect, particularly when the pump body is filled at a high frequency, the influence is larger, and therefore, the technology of the comparison document 1 can only be used for material filling occasions with a frequency which cannot be high, and only can be used for filling a single ejection port.

Disclosure of Invention

The present invention aims to provide a drip-proof filling machine which overcomes one or more of the above-mentioned drawbacks and which can be operated at high frequencies and with multiple spray heads.

The invention is realized by the way, comprising a motor, a pump driven by the motor, a filling head with anti-drip valves and a control device, and is characterized in that an electric-controlled clutch capable of realizing high-frequency clutch of more than 60 times per minute is arranged between the motor and the pump, the filling heads with the anti-drip valves are a plurality of, the pump adopts a volumetric pump, the pump simultaneously supplies materials to the plurality of filling heads with the anti-drip valves, the control device controls the clutch and the anti-drip valves to work, and the quantity of the materials sprayed by the filling heads is the same by controlling the opening of the anti-drip valves and the closing of the anti-drip valves respectively.

The clutch (electromagnetic clutch capable of realizing high-frequency clutch of more than 60 times/min) is adopted to control the switch of the pump, so that the influence of the inertial impulse of the rotation of the motor on the accurate control of the pumped materials is avoided; the volumetric pump is adopted and matched with the drip-proof valve, so that the characteristics of the volumetric pump can be utilized, and the volumetric pump is stopped by materials, so that the high-frequency accurate pouring effect is realized.

The resistance of the materials from the pump to each pouring spout is different under the influence of the pipeline conveying resistance, if the anti-drip valves are closed at the same time, so that the quantity of the materials poured by each pouring spout has great error, the anti-drip valves are controlled to be opened at the same time and the anti-drip valves are controlled to be closed respectively, so that the closing time of the anti-drip valves can be regulated according to the resistance of the materials flowing between each pouring spout and the pump, the quantity of the materials output by each pouring spout is ensured to be in a controllable error range, and the high-frequency pouring is ensured, so that even if the difference of the pipeline resistance causes the difference of the ejection quantity, the difference is of millisecond level, and the high-frequency pouring is not influenced by the difference of the closing time of each anti-drip valve.

Preferably, the time at which the clutch is disengaged is no more than 0.01 seconds before the time after all of the anti-drip valves are closed, and the time at which the clutch is engaged is no more than 0.01 seconds before the time at which the anti-drip valves are opened, when the filling is stopped.

When the clutch is disconnected, the pump is also inertial, and the clutch is disconnected firstly and then the anti-drip valve is closed or the clutch is disconnected and the anti-drip valve is closed simultaneously, so that the pump can be completely stopped by utilizing the resistance of the material, the time for disconnecting the clutch is not longer than 0.01 second than the time for closing the anti-drip valve, and even if the material is continuously sprayed by the inertia of the pump, the sprayed quantity is within the allowable error range.

When the filling is adopted, the clutch is firstly closed and then the anti-drip valve is opened or the clutch and the anti-drip valve are simultaneously closed, so that the effect of accurate filling can be realized, meanwhile, the phenomenon that the filling nozzle is drip due to residual pressure in a pipeline is avoided, the closing time of the clutch is earlier than the opening time of the anti-drip valve and is not more than 0.01 second, and the influence of gas contained in materials on filling and spraying is effectively overcome by using the pressure of the pump.

Compared with the prior art, the invention has the advantages of high frequency, multiple spray heads and accurate material pouring.

Drawings

Fig. 1 is a schematic structural view of the drip-proof filling machine of the present invention.

Figure number: 1. a motor; 2. a pump; 3. an anti-drip valve; 4. a perfusion head; 5. a control device; 6. a clutch; 7. a compressed air source.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings and examples:

As shown in the figure, the drip-proof filling machine is realized by comprising a motor 1, a pump 2 driven by the motor 1, a filling head 4 with a drip-proof valve 3 and a control device 5, and is characterized in that an electric-controlled clutch 6 capable of realizing high-frequency clutch of more than 60 times per minute is arranged between the motor 1 and the pump 2, the clutch 6 is an electromagnetic clutch, the plurality of filling heads 4 with the drip-proof valves 3 are adopted as the pump 2, the pump 2 simultaneously supplies materials to the plurality of filling heads 4 with the drip-proof valves 3, the control device 5 controls the clutch 6 and the drip-proof valves 3 to work, and the simultaneous opening and the separate closing of the drip-proof valves 3 are controlled by controlling the drip-proof valves 3, so that the simultaneous spraying amounts of the materials of the filling heads 4 are the same (within a set error range).

Preferably, the anti-drip valves 3 are pneumatic anti-drip valves 3, and the control device 5 controls the compressed air source 7 to supply compressed air to each anti-drip valve 3 to control the opening and closing of the anti-drip valves 3. The pneumatic drip-proof valve 3 is adopted, so that the whole volume of the drip-proof valve 3 can be effectively reduced, and the effect of concentrated pouring of multiple pouring heads can be realized.

Preferably, the time that the clutch 6 is opened is no more than 0.01 seconds earlier than the time that all of the anti-drip valves 3 are closed when the filling is stopped, and the time that the clutch 6 is closed is no more than 0.01 seconds earlier than the time that the anti-drip valves 3 are opened when the filling is performed.

Claims

1. The drip-proof filling machine includes motor, pump driven by motor, filling head with drip-proof valve and control device, and is characterized by that between motor and pump an electric-controlled clutch capable of implementing high-frequency clutch of above 60 times/min is set, and several filling heads with drip-proof valves are set, and the pump adopts a positive displacement pump, and the pump can simultaneously provide material for several filling heads with drip-proof valves, and the control device can control the operation of clutch and drip-proof valves, and can control the closing of all drip-proof valves by means of controlling that all drip-proof valves are simultaneously opened and respectively controlled so as to make the material quantity sprayed by all filling heads be identical, and when the filling is stopped, the time of clutch opening is less than 0.01 second earlier than the time of opening of all drip-proof valves, and when the filling is performed, the time of clutch closing is less than 0.01 second earlier than the time of opening of drip-proof valves, and the drip-proof valves are pneumatic drip-proof valves, and the control device can control the opening and closing of all drip-proof valves by means of compressed air source.