CN2341896Y

CN2341896Y - Food packing machine

Info

Publication number: CN2341896Y
Application number: CN98234993U
Authority: CN
Inventors: 梁云波; 周广林; 简树权
Original assignee: DEBAO FOOD PACKAGE MACHINERY FACTORY CITY AREA FOSHAN CITY
Current assignee: DEBAO FOOD PACKAGE MACHINERY FACTORY CITY AREA FOSHAN CITY
Priority date: 1998-08-30
Filing date: 1998-08-30
Publication date: 1999-10-06
Anticipated expiration: 2008-08-30

Abstract

The utility model relates to a food packing machine which comprises a blanking mechanism, a moulding mechanism, a vertical sealing mechanism, a horizontal sealing mechanism, a paper pulling mechanism which is provided with a brake and a clutch, an oscillating mechanism, a date printing mechanism and an inflating mechanism, wherein the operations of the vertical sealing mechanism and the horizontal sealing mechanism are controlled by a vertical sealing cam and a horizontal sealing cam which are arranged on an upright shaft, a light sensor is arranged near a paper strip, a cam is arranged on the upright shaft and the point near the cam is provided with a photoelectric proximity switch which is triggered by the cam. Compared with the prior art, the utility model has the advantages of simple structure, high reliability, etc., and can prevent the phenomena of long and short bags, broken bags and deformed bags.

Description

A kind of foods packing machine

The utility model relates to the improvement of a kind of machine of packaged food, particularly a kind of foods packing machine.

Existing foods packing machine is mainly by cutting agency, shaping mechanism, enclosed mechanism, draw mechanism of paper, concussion mechanism, date printed mechanism, inflation mechanism constitutes, enclosed mechanism comprises vertical envelope partial sum horizontal sealing part, vertical envelope part, the horizontal sealing part, draw mechanism of paper, concussion mechanism, date printed mechanism, inflation mechanism is all by corresponding vertical envelope cam on the vertical shaft of wrapping machine, the horizontal sealing cam, clutch cam and micro-switch, under shake cam and micro-switch, date printed cam and micro-switch, inflation cam and micro-switch control, the length of packaging bag is controlled by the stain that has printed in the light sensors packaging bag, distance between stain is isometric with packaging bag, this kind foods packing machine is except enclosed mechanism, other mechanism comprises draws mechanism of paper, concussion mechanism, date printed mechanism, inflation mechanism is all controlled by micro-switch, as everyone knows, normally-open normally-close contact on the circuit because of long term exposure in air, contact electro spark in airborne oxygen and the circuit is had an effect and can be caused the contact surface oxidation, make it often malfunctioning, thereby cause machine to be out of order.In addition,, and can not prevent the appearance of broken bag, distortion bag, can not find in time that disconnected paper, broken paper or paper tape use up in process of production owing to the ineffective appearance that causes the length bag of mechanism of paper braking is skidded, drawn to multiple reason as drawing mechanism of paper.

Goal of the invention of the present utility model is to provide a kind of fault rate foods packing machine simple in structure few, that can prevent length bag, broken bag, the appearance of distortion bag.

The utility model is to realize like this, comprise cutting agency, shaping mechanism, vertical sealing mechanism, transverse sealing mechanism, have brake, power-transfer clutch draw mechanism of paper, concussion mechanism, date printed mechanism, inflation mechanism, the operation of vertical sealing mechanism and transverse sealing mechanism is by the vertical envelope cam on the vertical shaft, the horizontal sealing cam is controlled, be provided with optical sensor near the paper tape place, wherein on vertical shaft, be provided with cam, be provided with the photo-electric that triggered by cam near switch near the cam place, photo-electric is connected near switch and controls date printed mechanism respectively, concussion mechanism, the trigger circuit A of inflation mechanism operation, time delay circuit A; Trigger circuit B, time delay circuit B; Trigger circuit C, time delay circuit C, brake is connected to the normally closed switch circuit, power-transfer clutch is connected to the normal open switch circuit, photo-electric is joined near switch and normal open switch circuit and normally closed switch circuit, optical sensor is connected to operational amplification circuit, trigger circuit D, time delay circuit D, and the mouth of time delay circuit D joins with normal open switch circuit and normally closed switch circuit.

The utility model compared with the prior art, owing to adopted cam and photo-electric to replace three cams and the corresponding micro-switch thereof that are used to control date printed, inflation, concussion blowing in the past near switch, thereby simplify the structure, eliminated since contact switch because of the malfunctioning fault that causes of oxidation, improve this widely and used later-model serviceability, by the continuous running of operational amplification circuit, trigger circuit D, time delay circuit D control clutch and brake, can prevent the appearance of length bag, broken bag, distortion bag.

Fig. 1 is an organigram of the present utility model;

Fig. 2 is a circuit diagram of the present utility model.

Now reach embodiment in conjunction with the accompanying drawings this used novel describing in further detail:

The utility model is to realize like this, comprise cutting agency 1, shaping mechanism 2, vertical sealing mechanism 3, transverse sealing mechanism 24, have brake 16, power-transfer clutch 18 draw mechanism of paper 4, concussion mechanism 5, date printed mechanism 6, inflation mechanism 8, the operation of vertical sealing mechanism 3 and transverse sealing mechanism 24 is by the vertical envelope cam 10 on the vertical shaft 9, horizontal sealing cam 11 is controlled, be provided with optical sensor 13 near paper tape 12 places, wherein on vertical shaft 9, be provided with cam 14, be provided with the photo-electric that triggered by cam 14 near switch 15 near cam 14 places, photo-electric is connected near switch 15 and controls date printed mechanism 6 respectively, concussion mechanism 5, the trigger circuit A of inflation mechanism 8 operations, time delay circuit A; Trigger circuit B, time delay circuit B; Trigger circuit C, time delay circuit C, brake 16 is connected to normally closed switch circuit 17, power-transfer clutch 18 is connected to normal open switch circuit 19, photo-electric is joined near switch 15 and normal open switch circuit 19 and normally closed switch circuit 17, optical sensor 13 is connected to operational amplification circuit 21, trigger circuit D7, time delay circuit D20, and the mouth of time delay circuit D20 joins with normally closed switch circuit 17 and normal open switch circuit 19.

When using the utility model, energized, vertical shaft rotates, when the projection on the cam 10 away from photo-electric during near switch 15, photo-electric does not have signal output near switch 15, the electric signal that produced by power supply this moment is leaded up to trigger circuit A, time delay circuit A; Trigger circuit B, time delay circuit B; Trigger circuit C, time delay circuit C control date printed mechanism 6,8 operations of concussion mechanism 5, inflation mechanism respectively, so that material is delivered in the bag, unreactable gas are charged in the bag to prevent food spoilage, stamp the date to show the date manufactured of product on bag; Normal open switch circuit 19 and normally closed switch circuit 17 are then controlled in another road of electric signal, normally closed switch circuit 17 is closed, 19 conductings of normal open switch circuit, power-transfer clutch 18 connects, brake 16 unclamps, draw mechanism of paper 4 work, paper tape 12 is drawn to move, stain 25 on the paper tape 12 is removed from optical sensor 13, and optical sensor 13 is touched conducting, produces a high potential pulse behind operational amplification circuit 21, trigger circuit D7 is touched and is produced an active potential pulse, through the electric signal of time delay circuit D20 counter-rotating generation one continuity high potential, control normally closed switch circuit 17 is closed 19 conductings of normal open switch circuit, power-transfer clutch 18 works on, brake 16 is not worked, and drives to draw mechanism of paper 4 to work on to sense stain 25 on the next paper tape 12 until optical sensor 13, till optical sensor 13 ends.At this moment, operational amplification circuit 21 produces an active potential pulse, output one high potential pulse behind trigger circuit D7, thereby impel time delay circuit D20 counter-rotating, mouth output low-potential signal, during, just the short time closes because photo-electric is near switch 15, when the projection on the cam is passed through photo-electric near switch 15, can produce an electric signal, at this moment, normal open switch circuit 19 is closed, therefore 17 conductings of normally closed switch circuit, draw the operation of mechanism of paper 4 will lean on the signal of optical sensor 13 to control.When drawing the malfunctioning or brake of paper fault such as optical sensor 13 16 malfunctioning, optical sensor 13 can not produce impulse singla, cause trigger circuit D7 and time delay circuit D20 not to have signal output, though this moment, photo-electric was near the switch 15 generation impulse singla that constantly is triggered, but this of short duration impulse singla can only drive and draw mechanism of paper 4 snap actions once, and can not make draw mechanism of paper 4 perseverations to sense next stain 25 to optical sensor 13 till, so just prevented the appearance of length bag.Equally, when the distortion bag occurring, during broken bag, optical sensor 4 is not worked, and wrapping machine has only distortion bag, broken bag are taken away with regard to cisco unity malfunction, eliminated mal factors such as causing occurring the length bag after, start again, machine could normal operation.

Normally closed switch circuit 17 is mainly by aerotron BG1, BG2, BG3, resistance R 1, R2, R3 constitutes, normal open switch circuit 19 is mainly by aerotron BG4, BG5, BG6, resistance R 5, R6, diode D1 constitutes, normal open switch circuit 19 and photo-electric are joined by light pipe 22 near 15 on switch, 1 pin of light pipe 22 joins by resistance R 16 and power supply, 2 pin and photo-electric are joined near switch 15,3 pin join by resistance R 15 and power supply, 4 pin of the base stage of the BG4 in the normal open switch circuit 19 and light pipe 22 join, collecting electrode joins by R5 and power supply, grounded emitter, the base stage of BG5 is passed through R6, the collecting electrode of D1 and BG4 joins, the collecting electrode of BG5 and power-transfer clutch 18 join, the base stage of BG6 and the emitter of BG5 join, the grounded emitter of BG6, collecting electrode and power-transfer clutch 18 join, the base stage of BG1 in the normally closed switch circuit 17 is joined by the negative electrode of R1 and D1, grounded emitter, collecting electrode passes through R2 respectively, R3 and power supply, the base stage of BG2 is joined, the collecting electrode of BG2 and brake 16 join, the base stage of emitter and BG3 is joined, the grounded emitter of BG3, collecting electrode and brake 16 join, the mouth of time delay circuit D20 is by diode D2, the negative electrode of resistance R 4 and D1 joins, the collecting electrode of BG3 respectively with trigger circuit A, trigger circuit B, the input end of trigger circuit C joins, here, the effect of D1 is to prevent that the output signal of time delay circuit D20 from influencing trigger circuit A, trigger circuit B, trigger circuit C.

For the cursor that can detect different colours on the paper tape 12 and the influence at the bottom of not being subjected to the lacquer of different colours on the paper tape 12, optical sensor 4 adopts highly sensitive, can reflect also transmissible bi-coloured light sensor.

In addition; in order to prevent the length bag well; broken bag; the appearance of bad phenomenon such as distortion bag; and machine energy auto-stop after above-mentioned undesirable element occurring; also be connected to the control circuit 23 of main control system fender guard at the mouth of time delay circuit D20; this control circuit 23 is mainly by three 555 ic chips 1; IC2; IC3; aerotron BG7; BG8; BG9; BG10; capacitor C 1; C2; C3; C4; C5; resistance R 7; R8; R9; R10; R11; R12; R13; R14; adjustable resistance R constitutes; the base stage of BG7 is by resistance R 17; the mouth of diode D3 and time delay circuit D20 joins; grounded emitter; collecting electrode is leaded up to R; R7 and power supply join; one the tunnel with IC1 2; 6 pin join; 6 pin of IC1 are by C2 ground connection; 1 pin ground connection; 5 pin are by C1 ground connection; 4; after linking to each other, 8 pin join with power supply; 3 pin join by the base stage of R2 and BG8; emitter and the power supply of BG8 join; collecting electrode joins by 2 pin of C3 and IC2; 2 pin join by R9 and power supply; 4; after linking to each other, 8 pin join with power supply; 2; 6 pin link to each other; 1 pin ground connection; 3 pin join by 2 pin of C4 and IC3; 2 pin join by R10 and power supply; 4; after linking to each other, 8 pin join with power supply; 1 pin ground connection; 7; leading up to R11 and power supply after 6 pin link to each other joins; lead up to C5 ground connection; 3 pin join by the base stage of R12 and BG9; the grounded emitter of BG9; collecting electrode is leaded up to R13 and power supply and is joined; the base stage of R14 and BG10 of leading up to is joined, the grounded emitter of BG10, and collecting electrode is leaded up to R18 and power supply and is joined; one the tunnel communicates with main electric motor protective device; here the effect of D2 is to prevent that photo-electric is influential to control circuit 23 near the signal of switch 15, during use, when time delay circuit D20 does not have signal; BG7 ends; because C2; R7; the time-lag action of R, 2 pin of IC1 be low level till C2 is full of electricity, during; 3 pin of IC1 are high level; not conducting of BG8,3 pin of IC3 are low level, BG9 ends; the BG10 conducting; control main electric motor protective device work, main motor normally moves, when machine normally moves; before C2 is full of electricity; time delay circuit D20 should export high level signal, makes the BG7 conducting, the C2 discharge; 2 pin of IC1 keep low level; not conducting of BG8, BG9 ends, the BG10 conducting; main motor normally moves; when the machine run mal, the length bag appears causing; broken bag; when the distortion bag waited undesirable element or paper tape to use up, time delay circuit D20 output pin was kept low level; not conducting of BG7; the pin 2 of IC1 becomes high level after C2 is full of electricity, and 3 pin are reversed to low level, the BG8 conducting; collecting electrode sends a high level pulse; through IC2; after the IC3 counter-rotating, in the high level electric signal that pin 3 outputs one of IC3 are delayed time, BG9 conducting; BG10 ends; main electric motor protective device is not worked, and main motor is shut down, and produces the length bag until eliminating; broken bag; distortion bag wait behind the undesirable element or load onto paper tape again after start shooting again till.

Here, between BG10 and main electric motor protective device, be provided with light pipe 22,, avoided adopting the easily oxidized and danger that produces fault in the existing contact of relay in the past to realize the purpose of the big electric current of little current control.

In addition, the mouth at time delay circuit A, time delay circuit B, time delay circuit C is equipped with the relay of light pipe 22 to replace being adopted in the past, the purpose of the big electric current of realize with little current control concussion, inflate, printing is required.

Claims

1, a kind of foods packing machine, comprise cutting agency, shaping mechanism, vertical sealing mechanism, transverse sealing mechanism, have brake, power-transfer clutch draw mechanism of paper, concussion mechanism, date printed mechanism, inflation mechanism, the operation of vertical sealing mechanism and transverse sealing mechanism is by the vertical envelope cam on the vertical shaft, the horizontal sealing cam is controlled, be provided with optical sensor near the paper tape place, it is characterized in that on vertical shaft, being provided with cam, be provided with the photo-electric that triggered by cam near switch near the cam place, photo-electric is connected near switch and controls date printed mechanism respectively, concussion mechanism, the trigger circuit A of inflation mechanism operation, time delay circuit A; Trigger circuit B, time delay circuit B; Trigger circuit C, time delay circuit C, brake is connected to the normally closed switch circuit, power-transfer clutch is connected to the normal open switch circuit, photo-electric is joined near switch and normal open switch circuit and normally closed switch circuit, optical sensor is connected to operational amplification circuit, trigger circuit D, time delay circuit D, and the mouth of time delay circuit D joins with normal open switch circuit and normally closed switch circuit.

2, foods packing machine according to claim 1, it is characterized in that the normally closed switch circuit is mainly by aerotron BG1, BG2, BG3, resistance R 1, R2, R3 constitutes, normal open switch circuit 19 is mainly by aerotron BG4, BG5, BG6, resistance R 5, R6, diode D1 constitutes, normal open switch circuit and photo-electric are joined by the light pipe near switch room, 1 pin of light pipe joins by resistance R 16 and power supply, 2 pin and photo-electric are joined near switch, 3 pin join by resistance R 15 and power supply, 4 pin of the base stage of the BG4 in the normal open switch circuit and light pipe join, collecting electrode joins by R5 and power supply, grounded emitter, the base stage of BG5 is passed through R6, the collecting electrode of D1 and BG4 joins, collecting electrode and the power-transfer clutch of BG5 join, the base stage of BG6 and the emitter of BG5 join, the grounded emitter of BG6, collecting electrode and power-transfer clutch join, the base stage of BG1 in the normally closed switch circuit is joined by the negative electrode of R1 and D1, grounded emitter, collecting electrode passes through R2 respectively, R3 and power supply, the base stage of BG2 is joined, collecting electrode and the brake of BG2 join, the base stage of emitter and BG3 is joined, the grounded emitter of BG3, collecting electrode and brake join, the mouth of time delay circuit D is by diode D2, the negative electrode of resistance R 4 and D1 joins, the collecting electrode of BG3 respectively with trigger circuit A, trigger circuit B, the input end of trigger circuit C joins.

3, foods packing machine according to claim 1, it is highly sensitive to it is characterized in that optical sensor adopts, and can reflect also transmissible bi-coloured light sensor.

4; foods packing machine according to claim 1; it is characterized in that also being connected to the control circuit of main control system fender guard at the mouth of time delay circuit D; this control circuit is mainly by three 555 integrated packages; IC1; IC2; IC3; aerotron BG7; BG8; BG9; BG10; capacitor C 1; C2; C3; C4; C5; resistance R 7; R8; R9; R10; R11; R12; R13; R14; adjustable resistance R constitutes; the base stage of BG7 is by resistance R 17; the mouth of diode D3 and time delay circuit D joins; grounded emitter; collecting electrode is leaded up to R; R7 and power supply join; one the tunnel with IC1 2; 6 pin join; 6 pin of IC1 are by C2 ground connection; 1 pin ground connection; 5 pin are by C1 ground connection; 4; after linking to each other, 8 pin join with power supply; 3 pin join by the base stage of R2 and BG8; emitter and the power supply of BG8 join; collecting electrode joins by 2 pin of C3 and IC2; 2 pin join by R9 and power supply; 4; after linking to each other, 8 pin join with power supply; 2; 6 pin link to each other; 1 pin ground connection; 3 pin join by 2 pin of C4 and IC3; 2 pin join by R10 and power supply; 4; after linking to each other, 8 pin join with power supply; 1 pin ground connection; 7; leading up to R11 and power supply after 6 pin link to each other joins, and leads up to C5 ground connection, and 3 pin join by the base stage of R12 and BG9; the grounded emitter of BG9; collecting electrode is leaded up to R13 and power supply and is joined, and the base stage of R14 and BG10 of leading up to is joined the grounded emitter of BG10; collecting electrode is leaded up to R18 and power supply and is joined, and one the tunnel communicates with main electric motor protective device.

5, foods packing machine according to claim 4 is characterized in that being provided with the light pipe between BG10 and main electric motor protective device.

6, foods packing machine according to claim 1 is characterized in that being equipped with the light pipe at the mouth of time delay circuit A, time delay circuit B, time delay circuit C.