CN206202748U - Material collection equipment - Google Patents

Abstract

The utility model discloses a kind of material collection equipment, solve the problems, such as that staff is difficult to holding material bagging accuracy when material collection is carried out, its drip irrigation device is：Including the electronic scale for weighing material, the upper end for being arranged at electronic scale to receive the drawing mechanism of material, be communicated in drawing mechanism with the efferent duct of packaging bag on outputting material to electronic scale, also including the pressure-detecting device for detecting the pressure condition and output pressure detection signal that are positioned over packaging bag on electronic scale；It is preset with pressure reference value signal and is coupled to pressure-detecting device to receive pressure detecting signal and pressure detecting signal and pressure reference value signal are compared to each other with the voltage comparator device of output voltage comparison signal and be coupled to performs device of the voltage comparator device with receiving voltage comparison signal and in response to voltage comparison signal to control drawing mechanism to open and close, a kind of material collection equipment of the present utility model, can effectively improve accuracy during material bagging.

Description

Material collection equipment

Technical field

The utility model is related to a kind of plastic strip process line, more particularly to a kind of material collection equipment.

Background technology

In plastic strip process line, material collection will mainly complete to add as the final stage operation of streamline The plastic strip of work is collected packaging.

In the collection of plastic strip and packing process is carried out, staff is mainly according to the weight and mark on electronic scale The weight of quasi- packaging is compared, when the data shown on electronic scale are identical with the weight of standard pack, staff's meeting The delivery outlet of material is cut off immediately and packaging bag is bundled with the rope made of hemp, but staff collects plastic strip in long-time When, can usually shift to an earlier date or delay the delivery outlet of cut-out material due to carelessness, cause the weighing weight of material to be difficult to reach standard Value, also improved space.

Utility model content

The purpose of this utility model is to provide a kind of automatic cutting equipment, can effectively improve accuracy during material bagging.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of material collection equipment, including for weigh material electronic scale, be arranged at electronic scale upper end to receive thing The drawing mechanism of material, drawing mechanism is communicated in the efferent duct of packaging bag on outputting material to electronic scale, it is characterized in that：Also include Pressure-detecting device for detecting the weights and output pressure detection signal that are positioned over packaging bag on electronic scale；It is preset with Pressure reference value signal and pressure-detecting device is coupled to receive pressure detecting signal and by pressure detecting signal and pressure base Quasi- value signal is compared to each other with the voltage comparator device of output voltage comparison signal and is coupled to voltage comparator device to receive Voltage comparison signal and the performs device in response to voltage comparison signal to control drawing mechanism to open and close；When pressure detecting signal is big When pressure reference value signal, the performs device control drawing mechanism closes supply.

Using such scheme, the pressure condition of object is detected by pressure-detecting device, then by corresponding Voltage comparator device completes to be compared and output voltage comparison signal the pressure condition of object and standard pack object, passes through Voltage comparison signal controls the supply of performs device control material, accuracy during material bagging is effectively realized, with preferable Practicality.

Preferably, the pressure-detecting device includes reduction voltage circuit and pressure measurement circuitry；The reduction voltage circuit coupling In power supply receiving power supply signal and output buck signal to pressure measurement circuitry；The pressure measurement circuitry is used to detect places In object on electronic scale pressure condition and output pressure detection signal to voltage comparator device.

Using such scheme, power supply is depressured by reduction voltage circuit to meet the normal work of pressure measurement circuitry first Make voltage, and pressure measurement circuitry is used for the pressure condition produced when detecting that object is laid and exports corresponding pressure detecting letter Number realizing the control to performs device.

Preferably, also including being coupled to pressure measurement circuitry receiving pressure detecting signal and output pressure amplification signal To the pressure amplifying device of voltage comparator device.

Using such scheme, the amplification by pressure amplifying device to pressure detecting signal effectively prevent pressure detecting Signal is too low, and in the case where being disturbed by extraneous factor, pressure detecting signal is easily interfered, the value for causing output inaccurate, and sets Put pressure amplifying device and effectively prevent above-mentioned phenomenon, with preferable practicality.

Preferably, also including being coupled to power supply receiving power supply signal and output voltage follows signal to amplify to pressure to fill Put the voltage follow device to be returned to zero to pressure amplifying device.

Using such scheme, the letter that can effectively make to be exported after pressure amplifying device amplifies by voltage follow device Number can start from scratch, the initial value that effectively prevent pressure amplifying device output is not zero, caused by corresponding pressure inspection Mistake is measured, with preferable practicality.

Preferably, the voltage follow device includes sensitivity adjusting circuit, voltage follower circuit；The sensitivity is adjusted Economize on electricity road is coupled to power supply to receive power supply signal and output sensitivity Regulate signal；The voltage follower circuit is coupled to sensitive Degree regulation circuit follows signal to pressure amplifying device with receiving sensitivity Regulate signal and output voltage.

Use such scheme, if electric bridge have it is uneven export or when amplifier has offset voltage, can be sensitive by adjusting The degree regulation corresponding error of circuit；And the mutual cooperation of voltage follower circuit and sensitivity adjusting circuit can effectively reduce zero point Output.

Preferably, the pressure amplifying device includes the first amplifying circuit, the second amplifying circuit；Described first amplifies electricity Road is coupled to pressure measurement circuitry and amplifies signal to receive pressure detecting signal and export first；The second amplifying circuit coupling Amplify the amplification of signal, voltage follow signal and output voltage to receive first simultaneously in the first amplifying circuit and voltage follower circuit Signal is to voltage comparator device.

Using such scheme, the first amplifying circuit is used to carry out pressure detecting signal preliminary amplification, and second amplifies While be amplified for the signal of the first amplifying circuit by circuit, the edge of voltage follower circuit is coupled to due to the second amplifying circuit Therefore, the possibility of offset output is preferably reduced, improve the accuracy of pressure detecting.

Preferably, the voltage comparator device includes reference circuit, voltage comparator circuit；The reference circuit is used to carry For the reference signal corresponding with the pressure condition of one bag of standard material；The voltage comparator circuit is coupled to reference circuit and pressure Force checking device is with reception reference signal simultaneously and pressure detecting signal and output voltage comparison signal.

Using such scheme, being compared to each other for reference signal and voltage comparison signal is easy in the setting of reference circuit, passes through The comparing relatively preferably completed to object pressure and standard articles pressure between the two, improves the accuracy of material detection.

Preferably, the performs device includes control circuit and execution circuit；The control circuit is coupled to voltage ratio Compared with device with receiving voltage comparison signal and output control signal；The execution circuit is coupled to control circuit to receive control letter Number and in response to control signal controlling drawing mechanism to open and close.

Using such scheme, voltage comparator device is controlled by complete the control to execution circuit by controlling circuit, held Row circuit is mainly used for the decline of control material end, right by controlling the mutual cooperation of circuit and execution circuit preferably to complete The control that material declines, improves the accuracy of material bagging.

Preferably, also including counting addition device, driving display device；The counting addition device is coupled to voltage ratio Compared with device is with receiving voltage comparison signal and exports counting addition signal；The driving display device is coupled to counting addition device The number of material bagging is completed to show with count pick up additive signal and in response to counting addition signal.

Using such scheme, counting addition device is used to add up number automatically, simultaneously because driving display device Use can by counting addition device add up situation be shown, counting addition device is added up by driving display device Situation shown, effectively pointed out the packing quantity situation of staff's now object.

Preferably, the counting addition device includes squelch circuit and plus coujnt circuit, the driving display device Including drive circuit, display circuit；The squelch circuit is coupled to power supply to receive power supply signal and export denoised signal；It is described Plus coujnt circuit is coupled to squelch circuit to receive denoised signal and export plus coujnt signal to driving display device；It is described Drive circuit is coupled to plus coujnt circuit to receive plus coujnt signal and output drive signal；The display circuit is coupled to Drive circuit with receive drive signal and in response to drive signal with show pack material quantity.

Using such scheme, disturbed by the signal in the effective removal device of squelch circuit, and plus coujnt circuit makes Added up with the number for being mainly used in laying object, the possibility that plus coujnt circuit is gone on business is effectively reduced by squelch circuit Property, the accuracy of material bag number stored count is improve, display circuit is controlled by drive circuit, the effect of display circuit is main Circuit for showing the packing that succeeded, makes staff more preferable by the mutual cooperation of drive circuit and display circuit Solution has succeeded the number of packing, improves the accuracy of material bag number accumulated counts.

In sum, the utility model has the advantages that：

1st, have by pressure-detecting device, pressure amplifying device, voltage follow device, voltage comparator device, performs device Effect is realized, when material is attached to standard state in bag, can in time forbidding the decline of material, it is ensured that pack amount and standard pack Amount is identical；

2nd, filled by pressure-detecting device, pressure amplifying device, voltage follow device, voltage comparator device, counting addition Put, drive display device to be counted with the material effectively to successfully packing and work is reminded by way of liquid crystal display Personnel.

Brief description of the drawings

Fig. 1 is the structural representation of drawing mechanism and electronic scale；

Fig. 2 is pressure-detecting device, pressure amplifying device, the circuit connection diagram of voltage follow device；

Fig. 3 is voltage comparator device, the circuit connection diagram of performs device；

Fig. 4 is counting addition device, the circuit connection diagram for driving display.

In figure：1st, drawing mechanism；2nd, electronic scale；3rd, pressure-detecting device；4th, pressure amplifying device；5th, voltage follow dress Put；6th, voltage comparator device；7th, performs device；8th, counting addition device；9th, display device is driven；10th, reduction voltage circuit；11st, press Power measuring circuit；12nd, sensitivity adjusting circuit；13rd, voltage follower circuit；14th, the first amplifying circuit；15th, the second amplifying circuit； 16th, reference circuit；17th, voltage comparator circuit；18th, circuit is controlled；19th, execution circuit；20th, squelch circuit；21st, plus coujnt electricity Road；22nd, drive circuit；23rd, display circuit；24th, efferent duct.

Specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

A kind of material collection equipment disclosed in the present embodiment, including for weighing the electronic scale 2 of material, being arranged at electronic scale 2 upper end to receive the drawing mechanism 1 of material, be communicated in drawing mechanism 1 with the efferent duct 24 on outputting material to electronic scale 2, Material passes sequentially through the discharging of drawing mechanism 1, the outputting material of efferent duct 24, electronic scale 2 pairs and is positioned over material on electronic scale 2 Weigh, by the above-mentioned course of work, effectively facilitate the transmission and weighing of material.

Material collection equipment also includes being positioned over for detecting pressure condition and the output pressure inspection of packaging bag on electronic scale 2 Survey the pressure-detecting device 3 of signal；It is preset with pressure reference value signal and is coupled to pressure-detecting device 3 to receive pressure detecting Simultaneously be compared to each other with the voltage comparator device 6 of output voltage comparison signal for pressure detecting signal and pressure reference value signal by signal And voltage comparator device 6 is coupled to receiving voltage comparison signal and in response to voltage comparison signal to control drawing mechanism to open The performs device 7 closed；When pressure detecting signal is more than pressure reference value signal, the control drawing mechanism of the performs device 7 is closed Close；Conversely, then the performs device 7 proceeds the supply of material.

Pressure-detecting device 3 includes reduction voltage circuit 10 and pressure measurement circuitry 11；Reduction voltage circuit 10 is coupled to power supply to be used for Output buck signal；Pressure measurement circuitry 11 is coupled to reduction voltage circuit 10 to receive buck signal and output pressure detection signal.

Pressure-detecting device 3 includes being used to providing the voltage after step-down to realize pressure measxurement electricity to pressure measurement circuitry 11 The reduction voltage circuit 10 of the normal work of road 11 and for detect outside pressure condition physical quantity and output pressure detection signal extremely The pressure measurement circuitry 11 of voltage comparator device 6.

Reduction voltage circuit 10 is connected to piezoresistive RF1 and connects with second pressure resistance RF2 tie points and the other end including one end The resistance R18 and one end for being connected to resistance R19 are connected to power supply and the other end is connected to the resistance R19 of resistance R18.

Pressure measurement circuitry 11 is connected to one end of piezoresistive RF2 including one end and the other end is connected to piezoresistive The piezoresistive RF1 of one end of RF4, the piezoresistive RF4 of other end connection and one end of piezoresistive RF3, the other end are connected Piezoresistive RF3, one end with the other end of piezoresistive RF2 are connected to the RF2 of the inverting input of voltage comparator A1, pressure Power resistance RF1, piezoresistive RF2, piezoresistive RF3, piezoresistive RF4 are force sensing resistance and model FSR400.

Material collection equipment also includes that be coupled to pressure measurement circuitry 11 puts to receive pressure detecting signal and output pressure The pressure amplifying device 4 of big signal.

Pressure amplifying device 44 includes that be coupled to pressure measurement circuit amplifies signal to receive pressure detecting signal output first First amplifying circuit 14, be coupled to the first amplifying circuit 14 and voltage follower circuit 13 with simultaneously receive first voltage amplify letter Number, voltage follow signal and output pressure amplify the second amplifying circuit 15 of signal to voltage comparator device 6.

First amplifying circuit 14 is connected to the voltage comparator of slide rheostat RP1 and resistance R9 including in-phase input end A1, one end are connected to slide rheostat RP1 and the other end is connected to the resistance R9 of resistance R2, end of oppisite phase and is connected to resistance R3 One end and the voltage comparator A2 of one end of slide rheostat RP1, the other end be connected to the resistance R3 of resistance R4；Second amplifies Circuit 15 is connected to the resistance R4 other ends including inverting input and in-phase input end be connected to resistance R2 voltage amplifier A4, One end is connected to resistance R9 and the other end is connected to the resistance R2 of voltage comparator A4, and the model of voltage amplifier A1, A2, A4 is equal It is AD623.

Material collection equipment also includes being coupled to power supply receiving power supply signal and output voltage follows signal to pressure to put The voltage follow device 5 of big device 4.

Voltage follow device 5 includes being coupled to sensitivity adjusting circuit 12 with receiving sensitivity Regulate signal and output voltage Follow signal to pressure amplifying device 4 voltage follower circuit 1, to be coupled to power supply sensitive for output sensitivity Regulate signal Degree regulation circuit 12.

Sensitivity adjusting circuit 12 is connected to resistance R6 one end including output end and inverting input is connected to voltage follow The voltage follower A3 of the output end of device A3；Voltage follower circuit 13 includes the slip of the one end for being connected to resistance R7 and R8 Rheostat RP2, the other end are all connected to the resistance R7 and resistance R8 of power supply, the model LM6321N of voltage follower.

The voltage comparator device 6 includes reference circuit 16, voltage comparator circuit 17；The reference circuit 16 is used to provide The reference signal corresponding with the pressure condition of one bag of standard material；The voltage comparator circuit 17 is coupled to the He of reference circuit 16 Pressure-detecting device 3 is with reception reference signal simultaneously and pressure detecting signal and output voltage comparison signal.

Reference circuit 16 is connected to power supply including one end and the other end is connected to one end of slide rheostat RP3, electricity Press the resistance R10 of comparator A5 inverting inputs, one end is grounded and the other end is connected to voltage comparator A5 reverse input ends Slide rheostat RP3；Voltage comparator circuit 17 is connected to voltage comparator A4 including in-phase input end and output end is connected to electricity The voltage comparator A5, the model LM339 of voltage comparator A5 of pressure comparator A6.

Performs device 7 includes being coupled to voltage comparator circuit 17 with the control of receiving voltage comparison signal and output control signal Circuit processed 18, be coupled to control circuit 18 with receive control signal and in response to control signal with control drawing mechanism open and close hold Row circuit 19, control circuit 18 is relay KM1, and execution circuit 19 is magnetic valve, and magnetic valve is when being powered in opening State；After power-off, magnetic valve can close the output of material, the model HH52P of relay KM1.

The course of work：

Molding materials are conveyed into come when material is packed, by piezoresistive by drawing mechanism 11 RF1, piezoresistive RF2, piezoresistive RF3, piezoresistive RF4 are realized detecting the pressure of the object of electronic scale 2, passed through The output size of the adjustment voltage follow signal of sensitivity adjusting circuit 12 in voltage follow device 5 is simultaneously defeated by voltage follow signal Enter in pressure amplifying device 4, then pressure amplifying device 4 receives pressure detecting signal and carries out zeroing output pressure and amplifies letter Number, the comparing of signal and a reference value is amplified by the complete paired pressures of voltage comparator A5, voltage ratio is relatively believed by triode Q1 Number judged and promoted relay KM1 to turn on, inspire magnetic valve power-off to close the whereabouts of valve interruption material.

Embodiment two：

Letter is compared with receiving voltage as shown in figure 4, be increased on the basis of embodiment one and be coupled to voltage comparator device 6 Number and export the counting addition device 8 of counting addition signal, be coupled to counting addition device 88 with count pick up additive signal simultaneously In response to counting addition signal with show complete material bagging number driving display device 9；When counting addition device 8 is each When receiving the voltage comparison signal of high level, the number for having completed pack shown in display device 9 is driven to carry out automatically It is cumulative；Conversely, not increasing then, it is necessary to staff resets when number is cumulative reaches 9, then restarting is tired out Plus.

As shown in figure 4, counting addition device 8 includes being coupled to squelch circuit 20 and coupling of the power supply for exporting denoised signal Squelch circuit 20 is connected to receive denoised signal and export the plus coujnt circuit 21 of plus coujnt signal.

As shown in figure 4, squelch circuit 20 is to include that one end is connected to power supply and the other end is connected to the electricity of resistance R1 one end Hold the resistance R1 that C1, one end are connected to electric capacity C1 and other end ground connection；Plus coujnt circuit 21 is connected to power supply, CP for EN ports Port is connected to voltage comparator device 6, CY ports and is connected to one end of resistance R1, the up counter A6 of VSS ports ground connection, plus The model CD4518 of method counter A6.

As shown in figure 4, driving the display device 9 to include being coupled to plus coujnt circuit 21 receiving plus coujnt signal and defeated Go out the drive circuit 22 of drive signal, be coupled to drive circuit 22 to receive drive signal and in response to drive signal to be shown as The display circuit 23 of the circuit of work(packing, drive circuit 22 is driver A7, the model CD4543 of driver A7, display circuit 23 is 7 segment numeral pipe A8, the model BSR201 of 7 segment numeral pipe A8.

As shown in figure 4, the A ports of drive circuit 22, B ports, C-terminal mouthful, the port of D are connected to plus coujnt successively The Q1 ports of device, Q2 ports, Q3 ports, Q4 ports, a ports of drive circuit 22, b ports, c ports, d ports, e ports, f ends Mouth, g ports are connected to 7 segment numeral pipe A8 respectively through resistance R11, R12, R13, R14, R15, R16, R17.

The course of work：

Molding materials are conveyed into come when material is packed, by piezoresistive by drawing mechanism 11 RF1, piezoresistive RF2, piezoresistive RF3, piezoresistive RF4 are realized detecting the pressure of the object of electronic scale 2, passed through The output size of the adjustment voltage follow signal of sensitivity adjusting circuit 12 in voltage follow device 5 is simultaneously defeated by voltage follow signal Enter in pressure amplifying device 4, then pressure amplifying device 4 receives pressure detecting signal and carries out zeroing output pressure and amplifies letter Number, the comparing of signal and a reference value is amplified by the complete paired pressures of voltage comparator A5, voltage ratio is relatively believed by triode Q1 Number judged and promoted relay KM1 to turn on, inspire and power off to close the whereabouts of valve interruption material on magnetic valve.

While said process is carried out, a shut-off for performs device 7, the counting one of counting addition device 8 are often completed It is secondary, drive the numerical monitor in display device 9 to add up automatically one, quantity here is added to 9 later, it is necessary to work automatically Personnel are zeroed out adjustment and the material for completing pack are calculated in order to personnel by power-off.

This specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a kind of material collection equipment, including for weighing the electronic scale (2) of material, being arranged at the upper end of electronic scale (2) to connect Receive the drawing mechanism (1) of material, be communicated in drawing mechanism (1) with the efferent duct of packaging bag on outputting material to electronic scale (2) (24), it is characterized in that：Also include being positioned over for detection weights and output pressure the detection letter of packaging bag on electronic scale (2) Number pressure-detecting device (3)；It is preset with pressure reference value signal and is coupled to pressure-detecting device (3) to receive pressure detecting Simultaneously be compared to each other with the voltage comparator device of output voltage comparison signal for pressure detecting signal and pressure reference value signal by signal (6) and be coupled to voltage comparator device (6) with receiving voltage comparison signal and in response to voltage comparison signal with control discharging The performs device (7) that device (1) is opened and closed；When pressure detecting signal is more than pressure reference value signal, performs device (7) control Drawing mechanism (1) processed closes supply.

2. material collection equipment according to claim 1, it is characterized in that：The pressure-detecting device (3) includes step-down electricity Road (10) and pressure measurement circuitry (11)；The reduction voltage circuit (10) is coupled to power supply and is believed with receiving power supply signal and output buck Number to pressure measurement circuitry (11)；The pressure measurement circuitry (11) is positioned over the pressure of object on electronic scale (2) for detecting Situation and output pressure detection signal are to voltage comparator device (6).

3. material collection equipment according to claim 2, it is characterized in that：Also include be coupled to pressure measurement circuitry (11) with Receive pressure detecting signal and output pressure amplifies the pressure amplifying device (4) of signal to voltage comparator device (6).

4. material collection equipment according to claim 3, it is characterized in that：Also include being coupled to power supply to receive power supply signal And output voltage follows voltage follow device of the signal to pressure amplifying device (4) to be returned to zero to pressure amplifying device (4) (5)。

5. material collection equipment according to claim 4, it is characterized in that：The voltage follow device (5) is including sensitivity Regulation circuit (12), voltage follower circuit (13)；The sensitivity adjusting circuit (12) is coupled to power supply to receive power supply signal And output sensitivity Regulate signal；The voltage follower circuit (13) is coupled to sensitivity adjusting circuit (12) with receiving sensitivity Simultaneously output voltage follows signal to pressure amplifying device (4) to Regulate signal.

6. material collection equipment according to claim 5, it is characterized in that：The pressure amplifying device (4) is put including first Big circuit (14), the second amplifying circuit (15)；First amplifying circuit (14) is coupled to pressure measurement circuitry (11) to receive Pressure detecting signal simultaneously exports the first amplification signal；Second amplifying circuit (15) is coupled to the first amplifying circuit (14) and electricity Pressure follow circuit (13) with receive simultaneously first amplify signal, voltage follow signal and output voltage amplify signal to voltage ratio compared with Device (6).

7. material collection equipment according to claim 1, it is characterized in that：The voltage comparator device (6) includes benchmark electricity Road (16), voltage comparator circuit (17)；The reference circuit (16) is relative with the pressure condition of one bag of standard material for providing The reference signal answered；The voltage comparator circuit (17) is coupled to reference circuit (16) and pressure-detecting device (3) with while connecing Receive reference signal and pressure detecting signal and output voltage comparison signal.

8. material collection equipment according to claim 1, it is characterized in that：The performs device (7) includes control circuit And execution circuit (19) (18)；Control circuit (18) is coupled to voltage comparator device (6) with receiving voltage comparison signal simultaneously Output control signal；The execution circuit (19) is coupled to control circuit (18) to receive control signal and in response to control signal To control drawing mechanism (1) to open and close.

9. material collection equipment according to claim 1, it is characterized in that：Also include counting addition device (8), drive display Device (9)；The counting addition device (8) is coupled to voltage comparator device (6) with receiving voltage comparison signal and exports counting Additive signal；Driving display device (9) is coupled to counting addition device (8) by count pick up additive signal and in response in terms of Number additive signal completes the number of material bagging to show.

10. material collection equipment according to claim 9, it is characterized in that：The counting addition device (8) includes denoising electricity Road (20) and plus coujnt circuit (21), driving display device (9) include drive circuit (22), display circuit (23)；Institute Squelch circuit (20) is stated to be coupled to power supply to receive power supply signal and export denoised signal；Plus coujnt circuit (21) coupling In squelch circuit (20) receiving denoised signal and export plus coujnt signal to driving display device (9)；The drive circuit (22) plus coujnt circuit (21) is coupled to receive plus coujnt signal and output drive signal；Display circuit (23) coupling Drive circuit (22) is connected to receive drive signal and pack the quantity of material to show in response to drive signal.