CN205614972U - Extruding machine automatic feed system - Google Patents

Abstract

The utility model discloses an automatic feeding system for an extruding machine, which belongs to the field of feeding devices for an extruding machine, in particular to an automatic feeding system for an extruding machine with online automatic weighing and proportioning. It includes a console, a material storage device, a weighing device, a stirring tank, and a feeding device; the material storage device includes a plurality of raw material barrels connected in sequence, a plurality of raw material suction pipes, a plurality of sets of raw material vacuum suction devices, a plurality of raw material storage material tank; the weighing device includes a plurality of weighing suction pipes connected in sequence, multiple sets of weighing and suction solenoid valve groups, a weighing main pipe, and a weighing platform; the mixing tank and the weighing platform are communicated through pipelines; The feeding device includes a feeding suction pipe connected in sequence, a feeding vacuum suction device, and a buffer hopper, and a material level switch is arranged in the buffer hopper. This system realizes complete automation of weighing, formulation, mixing and conveying, improves efficiency, and realizes large-scale feeding; basically keeps raw materials in a closed environment to avoid pollution.

Description

Extrusion machine automatic feeding system

technical field

The utility model relates to a feeding system for an extruding machine, in particular to an automatic feeding system for an extruding machine with on-line automatic weighing and proportioning.

Background technique

In the extrusion process of plastic film, each film has a unique formula. A film usually contains more than three kinds of plastic particles. The traditional method is to get all kinds of rubber particles from the warehouse, weigh them manually, and then manually weigh them after weighing. Pour into a mixer to stir and dry, then pour into a small basket, use the small basket to transport to the hopper of the extruder, and use the suction machine to transport to the hopper. Disadvantages: frequent weighing work, prone to problems, low work efficiency, frequent exchanges and waste of manpower, rubber particles must be placed next to the machine and repeatedly exposed to air pollution, and the site is messy, which is not conducive to production management. Especially when the production scale is large, when feeding multiple extruders at the same time, the efficiency is low and cannot meet the feeding needs.

Contents of the invention

The purpose of the utility model is to provide an automatic feeding system for an extruder that separates flue gas and hot gas, which has a simple structure, quick roasting, sanitation and environmental protection.

The utility model proposes an automatic feeding system for an extruder, including a console, a storage device, a weighing device, a stirring tank, and a feeding device;

The material storage device includes a plurality of raw material barrels connected in sequence, a plurality of raw material suction pipes, a plurality of sets of raw material vacuum suction devices, and a plurality of raw material storage tanks;

The weighing device includes a plurality of weighing suction pipes connected in sequence, a plurality of weighing suction solenoid valves, a weighing main pipe, a weighing vacuum suction device, and a weighing platform; The material end is connected to a raw material storage tank, and the other end is connected to a weighing and suction solenoid valve. Through the control of the weighing and suction solenoid valve, only one weighing and suction pipe is connected to the weighing main pipe at the same time;

The stirring tank is communicated with the weighing platform through a pipeline, and stirring blades are arranged in the stirring tank;

The feeding device includes a feeding suction pipe connected in sequence, a feeding vacuum suction device, and a buffer hopper, and a material level switch is arranged in the buffer hopper.

Preferably, the weighing platform includes a high-precision negative pressure weighing scale, a weighing hopper is provided on the scale, and an electric butterfly valve for discharging is provided at the lower part of the weighing hopper; an induction switch is provided at the bottom of the stirring tank.

The console is equipped with a man-machine interface for setting the raw material formula, a host computer, a console, a weighing and suction solenoid valve, a high-precision negative pressure weighing scale, an electric butterfly valve for discharging, a material level switch in the buffer hopper, and a stirring tank. The bottom sensor switch is electrically connected.

This feeding system can feed multiple extruders at the same time. When multiple extruders feed, there are multiple sets of high-precision negative pressure weighing scales and weighing hoppers connected to the weighing main pipe on the weighing table. The heavy hopper is respectively connected to multiple mixing tanks, multiple sets of feeding vacuum suction devices, multiple buffer hoppers, and multiple extruders in a one-to-one correspondence.

When feeding from multiple machines, the host computer of the console scans the status of the material level switch of each buffer hopper in a circular manner, and performs batching, stirring, and conveying according to the formula in turn.

A flow control valve group is also installed at the feed end of each weighing suction pipe, and the flow control valve group is linked with the weighing suction solenoid valve.

The flow control valve group includes a medium-speed valve and a low-speed valve. The medium-speed valve and the low-speed valve cooperate to control the suction flow to be low-speed, medium-speed or completely cut off.

Universal wheels are installed at the bottom of the raw material bucket.

The beneficial effects of the utility model are: the medium-speed valve and the low-speed valve of the flow control valve group cooperate, and the electric control suction flow rate is low-speed, medium-speed or completely cut off, so as to cooperate to complete the high-precision feeding action. At the beginning, the feeding is For medium-speed feeding, the feeding will be low-speed when the last 5KG is reached, so as to ensure that the weight error accuracy of the feeding is within five thousandths; the weighing, formula, mixing, and transportation are fully automated, which improves work efficiency and reduces It saves manpower, reduces labor intensity, reduces the probability of error, makes the raw materials basically in a closed environment, and reduces the possibility of pollution. In addition, the complete separation of raw materials and machines breaks the original manual workshop production mode and completes automated flow operations, which is conducive to large-scale production and data statistics.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Reference signs: raw material barrels A, B, C, D, E, F, raw material storage tanks 1A, 1B, 1C, 1D, 1E, 1F, raw material vacuum suction devices 2A, 2B, 2C, 2D, 2E, 2F , weighing and suction solenoid valve group 3A, 3B, 3C, material level switch 1, raw material suction pipe 2, extruder 3, weighing table 4, weighing hopper 5, discharging electric butterfly valve 6, mixing tank 7, feeding Vacuum suction device 8, buffer hopper 9, high-precision negative pressure weighing scale 10, console 11, weighing suction pipe 12, feeding suction pipe 13, induction switch 14, weighing vacuum suction device 15, flow control valve Group 16, weighing main pipe 17.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described with reference to the accompanying drawings in conjunction with the embodiments.

detailed description

Embodiment one

With reference to Fig. 1, present embodiment comprises console 11, material storage device, weighing device, stirring tank 7, feeding device; Described material storage device comprises a plurality of raw material barrels A, B, C, D, E connected in sequence , F, multiple raw material suction pipes 2, multiple sets of raw material vacuum suction devices 2A, 2B, 2C, 2D, 2E, 2F, multiple raw material storage tanks 1A, 1B, 1C, 1D, 1E, 1F; the weighing The device includes a plurality of weighing suction pipes 12 connected in sequence, a plurality of weighing suction solenoid valves, a weighing main pipe 17, a weighing vacuum suction device 15, and a weighing platform 4; one end of each weighing suction pipe 12 Connect a raw material storage tank, and the other end is connected with a weighing and suction solenoid valve 3A, 3B, 3C. Through the control of the weighing and suction solenoid valve, only one weighing and suction pipe 12 is connected to the weighing main pipe at the same time. 14 communicates; the stirring tank 7 is communicated with the weighing platform 4 through a pipeline, and the stirring tank 7 is provided with stirring paddles; the feeding device includes a feeding suction pipe 13 connected in sequence, a feeding vacuum suction device 8, a buffer The hopper 9 is provided with a material level switch 1 in the buffer hopper. The weighing platform includes a high-precision negative pressure weighing scale 10, the scale is provided with a weighing hopper 5, and a discharge electric butterfly valve 6 is provided at the bottom of the weighing hopper; an induction switch 14 is provided at the bottom of the mixing tank. The console 11 is equipped with a man-machine interface for setting the raw material formula, a host computer, a console, weighing and suction solenoid valves 3A, 3B, 3C, etc., a high-precision negative pressure weighing scale 10, an electric discharging butterfly valve 6, a cache The material level switch 1 in the hopper 9 is electrically connected with the induction switch 14 at the bottom of the mixing tank. This feeding system can feed multiple extruders at the same time. When multiple machines feed, the weighing platform 4 is equipped with multiple sets of high-precision negative pressure weighing scales 10 and weighing hoppers 5 connected to the weighing main pipe. A plurality of weighing hoppers 5 are respectively connected to a plurality of mixing tanks, a plurality of sets of feeding vacuum suction devices, a plurality of buffer hoppers, and a plurality of extruders in sequence. When feeding from multiple machines, the host computer of the console 11 scans the status of the material level switch of each buffer hopper in a circular manner, and executes batching, stirring, and conveying according to the formula in sequence. A flow control valve group 16 is also installed at the feeding end of each weighing suction pipe, and the flow control valve group 16 is linked with the weighing suction solenoid valves 3A, 3B, and 3C. The flow control valve group 16 includes a medium-speed valve and a low-speed valve, and the medium-speed valve and the low-speed valve cooperate to control the suction flow to be low-speed, medium-speed or completely cut off. When both the low-speed valve and the medium-speed valve are open, the suction flow is at low speed; when the low-speed valve is closed and the medium-speed valve is open, the suction flow is at medium speed, and when both the low-speed valve and the medium-speed valve are closed, the suction pipe is weighed completely truncated. The bottom of the raw material barrel is equipped with a universal wheel, which is used to unpack the raw material in the unpacking workshop, pour it into the raw material barrel, and then push it to the raw material tank. The raw material tank has a large storage capacity and is fixed and cannot be moved. Universal wheels are installed at the bottom of the raw material barrel.

When working, first calculate the total weight of each rubber particle required according to the total amount of the order, and take them out at the warehouse at one time. After unpacking, pour into 6 raw material barrels A, B, C, D, E, F, and then inhale the corresponding 6 raw material storage tanks 1A through raw material vacuum suction devices 2A, 2B, 2C, 2D, 2E, 2F in sequence , 1B, 1C, 1D, 1E, 1F storage. On the man-machine interface of the console 11, the formula is set according to the production needs, and the switch is turned on, and the feeding system enters the automatic working state. The host starts to scan the state of the material level switch 1 in the buffer hopper. When it detects that the material level switch 1 has a signal output, the system starts to follow the given formula, firstly opens the weighing and suction solenoid valve 3A, and the rubber particles in the raw material barrel A By entering the raw material storage tank 1A through the raw material suction pipe 2 and the raw material vacuum suction device 3, the weighing hopper 5 on the weighing suction solenoid valve 3A, the weighing vacuum suction device 15, and the weighing platform 4 is simultaneously counted. Heavy, when the weight of the inhaled raw material storage tank 1A reaches the set weight of material A in the formula table, the main engine will close the weighing and suction solenoid valve 3A; then open the weighing and suction solenoid valves 3B and 3C in turn, The inhalation formula specifies the weight of other colloidal particles. After a formula inhalation action is completed, the discharge electric butterfly valve 6 at the bottom of the weighing hopper 5 is automatically opened, and the mixed ABCDEF materials are put into the mixing tank 7 below it, and the mixing tank starts the stirring function after a delay, and stirs according to the setting Time to mix all ingredients evenly. After the stirring action is completed, the feeding and conveying function starts. When feeding, the rubber material is sucked from the mixing tank 7 to the buffer hopper 9 through the feeding vacuum suction device 8, until all the rubber particles in the mixing tank 7 are sucked up, and the sensor switch at the bottom of the mixing tank senses that there are no rubber particles. , Automatically close the feeding vacuum suction device 8. At this point, the process of feeding according to the formula once is over.

In normal production, the buffer hopper 9 is directly installed on the top of the extruder 3, and is directly connected to the extruder hopper through a pipeline, and the rubber particles in the buffer hopper 9 flow to the extruder hopper by its own weight. When the extruder 3 continuously extrudes the molten rubber, the rubber particles in the hopper of the extruder decrease continuously, the material in the buffer hopper 9 is automatically replenished, and the material level continues to drop until the material level is lower than the material level switch At 1 o'clock, start the second recipe action again.

This feeding system can feed multiple extruders at the same time. When multiple machines feed, the weighing platform 4 is equipped with multiple sets of high-precision negative pressure weighing scales 10 and weighing hoppers 5 connected to the weighing main pipe. A plurality of weighing hoppers 5 are respectively connected to a plurality of mixing tanks, a plurality of sets of feeding vacuum suction devices, a plurality of buffer hoppers, and a plurality of extruders in sequence. When feeding from multiple machines, the host computer of the console 11 scans the status of the material level switch of each buffer hopper in a circular manner, and executes batching, stirring, and conveying according to the formula in sequence.

The above is only a preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model. All equivalent structural transformations made by using the description of the utility model and the contents of the accompanying drawings are directly or indirectly used in related technical fields. , are all included in the patent protection scope of the present utility model.

Claims (8)

1. an extruding machine automatic feeding system, it is characterised in that include control station, storage device, weighing device, agitator tank, feed arrangement；

Described storage device includes the multiple Raw material pails being sequentially connected with, many raw material suction pipes, many set material vacuum device for suction material, multiple raw material storage tanks；

Described weighing device includes the many suction tubes of weighing being sequentially connected with, multiple suction electromagnetic valve of weighing, weighing house steward, vacuum intaking device of weighing, weighing platform；The feed end of every suction tube of weighing connects a raw material storage tank, and the other end connects a suction electromagnetic valve of weighing, and by the control of suction electromagnetic valve of weighing, in making the same time, only one suction tube of weighing communicates with weighing house steward；

Described agitator tank and weighing unit, by pipeline communication, are provided with stirrer paddle in agitator tank；

Described feed arrangement includes the charging suction pipe being sequentially connected with, charging vacuum intaking device, caches hopper, is provided with stuff level switch in caching hopper.

Extruding machine automatic feeding system the most according to claim 1, it is characterised in that described weighing platform includes high accuracy negative pressure weight scale, and scale is provided with hopper of weighing, and hopper bottom of weighing sets a blowing electric butterfly valve；Inductive switch it is provided with bottom agitator tank.

Extruding machine automatic feeding system the most according to claim 2, it is characterized in that, described control station is equipped with setting the man machine interface of composition of raw materials, main frame, and the stuff level switch in control station and suction electromagnetic valve of weighing, in high precision negative pressure weight scale, blowing electric butterfly valve, caching hopper, the inductive switch bottom agitator tank electrically connect.

Extruding machine automatic feeding system the most according to claim 3, it is characterized in that, this feeding system can be multiple stage extruding machine feed simultaneously, during multimachine feed, weighing unit is provided with to overlap the high accuracy negative pressure weight scale and hopper of weighing connected with the house steward that weighs more, and multiple hoppers of weighing are sequentially connected with correspondingly with multiple agitator tanks, many set charging vacuum intaking devices, multiple caching hopper, multiple stage extruding machine respectively.

Extruding machine automatic feeding system the most according to claim 4, it is characterised in that during multimachine feed, the main frame scan round of control station respectively caches the stuff level switch state of hopper, is carried out dispensing by formula, is stirred, carries successively.

Extruding machine automatic feeding system the most according to claim 1, it is characterised in that the feed end at every suction tube of weighing is also equipped with flow control valve group, this flow control valve group and suction electromagnetic valve linking of weighing.

Extruding machine automatic feeding system the most according to claim 6, it is characterised in that flow control valve group includes middling speed valve, low speed valve, this middling speed valve, low speed valve coordinate control suction flow to be low speed, middling speed or completely cut off.

Extruding machine automatic feeding system the most according to claim 1, it is characterised in that equipped with universal wheel bottom described Raw material pail.