CN2578371Y

CN2578371Y - Pre-shrinking treating apparatus with stable shrinkage rate

Info

Publication number: CN2578371Y
Application number: CN 02264552
Authority: CN
Inventors: 顾金华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-19
Filing date: 2002-09-19
Publication date: 2003-10-08
Anticipated expiration: 2012-09-19

Abstract

The utility model relates to a pre-shrinking treating machine, which causes the reduction ratio of fabrics to keep stable. The utility model mainly comprises a cloth feeding mechanism, a pre-shrinking mechanism and a drying mechanism, wherein, a tension transducer is connected between the pre-shrinking mechanism and the drying mechanism; the utility model is also provided with a controlling circuit for the reduction ratio; the input end of the controlling circuit for the reduction ratio is connected with the output end of the tension transducer; the output end of the controlling circuit for the reduction ratio is connected with a pressing motor in the pre-shrinking mechanism to control the running of the pressing motor. After a tension signal of detecting fabrics is treated by the controlling circuit for the reduction ratio the utility model automatically controls the running of the pressing motor in the pre-shrinking mechanism on line, and drives a transmission mechanism via the pressing motor to move a rubber blanket to automatically regulate pressure between a backing roll and the rubber blanket on line.

Description

The sanforizer that shrinkage is stable

Technical field

The utility model relates to a kind of sanforizer, especially relates to a kind ofly making the stable sanforizer of fabric shrinkage.

Background technology

Because fabric is in process, certain variation has taken place in the warp of fabric, parallel, so generally will pass through the preshrunk aftertreatment technology to fabric.When fabric is delivered to preshrunk mechanism from the cloth mechanism of advancing of sanforizer, by the pressure between bearing roller in the preshrunk mechanism and the rubber blanket, fabric pushed make it be retracted to technological requirement, through the drying mechanism at rear portion fabric drying is put in order again.But when fabric is handled in preshrunk, be subjected to the influence of fabric humidity, temperature and each unit mechanisms speed of service, cause fabric shrinkage instability.Though, between preshrunk mechanism and dry finishing mechanism, be provided with the sensor that detects fabric tension, but this tension pick-up only is used for controlling the blanket drying cylinder motor speed of drying mechanism, fabric between preshrunk mechanism and the drying mechanism is kept synchronously, yet fabric is when reaching synchronous, variation has taken place in the shrinkage of its fabric, so still can not really solve fabric shrinkage problem of unstable in the preshrunk processing procedure.And to the adjusting of fabric shrinkage, be adopt manually method to clamping motor operation control, change the pressure between bearing roller and the rubber blanket, can't realize the pre-compression pressure of on-line automatic adjusting so that the fabric shrinkage is fluctuateed, influence the quality of fabric.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of simple in structure, can regulate pre-compression pressure automatically and makes the fabric shrinkage keep stable sanforizer.

Technical problem to be solved in the utility model is achieved through the following technical solutions: the sanforizer that a kind of shrinkage is stable, comprise into cloth mechanism, preshrunk mechanism and drying mechanism, between preshrunk mechanism and drying mechanism, be connected to tension pick-up, it is characterized in that: also have a shrinkage control circuit, the output of the input termination tension pick-up of shrinkage control circuit, the clamping motor in the output termination preshrinking machine structure of shrinkage control circuit.

The utility model utilizes the tension pick-up between preshrunk mechanism and the drying mechanism, to detect the tension signal of fabric after the shrinkage control circuit is handled, the operation of clamping motor in the on-line automatic control preshrunk mechanism, and make the displacement of rubber blanket by the transmission mechanism that is connected with clamping motor, realize pressure between on-line automatic adjusting bearing roller and the rubber blanket, it is simple in structure, in the shrunk finish processing procedure of fabric, the stability of shrinkage can be remained, the product quality of fabric can be improved.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the electrical schematic diagram of the utility model preshrunk control circuit.

Fig. 3 is the electrical schematic diagram of the another kind of form of the utility model preshrunk control circuit.

The specific embodiment

The sanforizer that shrinkage as shown in Figure 1 is stable, comprise mainly by entering cloth rack 1-1, advance that cloth motor 1-2 and damping device 1-3 constitute enter cloth mechanism 1, the main preshrunk mechanism 2 that constitutes by bearing roller 2-4, bearing roller motor 2-3 and the clamping motor 2-2 that is connected with rubber blanket 2-1 by transmission mechanism, the main drying mechanism 3 that constitutes by blanket drying cylinder 3-1, blanket drying cylinder motor 3-2, cloth carries out preshrunk from enter cloth mechanism 1 to preshrunk mechanism 2 handles, cropping after blanket drying cylinder 3-1 oven dry.Between preshrunk mechanism 2 and drying mechanism 3, be connected to the tension pick-up 4 that detects fabric tension, the utility model also has shrinkage control circuit 5, this shrinkage control circuit 5 is used for controlling the operation of the 2 clamping motor 2-2 of preshrunk mechanism, and be connected with the output of tension pick-up 4, by tension pick-up 4 the fabric tension variable signal is handled back control clamping motor 2-2 operation by shrinkage control circuit 5, make the left and right displacement of the clamping motor 2-1 of operation by lead screw transmission mechanism control rubber blanket 2-1, to change the pressure between rubber blanket 2-1 and the bearing roller 2-4, regulate the fabric shrinkage automatically.Clamping motor 2-2 of the present utility model also can link to each other with bearing roller 2-4 by transmission mechanism, by regulating the displacement of bearing roller 2-4, changes the pressure between rubber blanket 2-1 and the bearing roller 2-4, reaches automatic adjusting fabric shrinkage equally, makes fabric keep stable shrinkage.

Shrinkage control circuit 5 of the present utility model is a polarity discriminating control circuit.See Fig. 2, this polarity discriminating control circuit 5 is made of reference circuit, comparison amplifying circuit and relay drive circuit, tension pick-up 4 is the variable resistance type sensor, when operate as normal, tension pick-up 4 both the output voltage of variable potentiometer within reference voltage.When shrinkage becomes big, then the vertical arc of the fabric between rubber blanket 2-1 and the blanket drying cylinder 3-1 diminishes, then the central point of variable potentiometer upwards moves, during current potential that the current potential of ordering as TP1 is ordered greater than TP2, then compare the diode D1 conducting on the amplifying circuit, form positive-feedback circuit, make and be output as high level, triode TR1 saturation conduction, make relay J 2 adhesives behind the coil electricity of relay J 2, drive clamping motor 2-2 counter-rotating, rubber blanket 2-1 moves to left, pressure between rubber blanket 2-1 and the bearing roller 2-4 is reduced, and the fabric shrinkage reduces until reaching process value; When shrinkage diminishes, then the fabric between rubber blanket 2-1 and the blanket drying cylinder 3-1 hangs down the arc change greatly, then the central point of variable potentiometer is to moving down, during current potential that the current potential absolute value of ordering as TP1 is ordered greater than TP2, then relatively the comparison amplifier A2 of amplifying circuit just is output as, diode D2 conducting, triode TR2 saturation conduction, relay machine J1 adhesive clamping motor 2-2 is just changeed, rubber blanket 2-1 moves to right, pressure between rubber blanket 2-1 and the bearing roller 2-4 is increased, and the fabric shrinkage becomes greatly until reaching process value.

See that Fig. 3 is the another kind of circuit form of the utility model polarity discriminating circuit, be frequency conversion control circuit, both can be used for controlling the rotating of clamping motor 2-2, controlled again rotating speed of neutralizing tight motor 2-2.Frequency converter of the present utility model can adopt the commercially available E540 of Mitsubishi Series Frequency Converter or peace river V7 Series Frequency Converter, and tension pick-up is a resistance strain gauge force transducer, resistance strain gauge force transducer output becomes through transmitter XTR101 to be sent, export by voltage form, shift through the A3 level, A4 follows, and the current potential that TP1 is ordered when making normal tension is 0.When operate as normal, the voltage of tension pick-up 4 outputs after change is sent is within reference voltage, when the fabric shrinkage becomes big, then the vertical arc of the fabric between rubber blanket 2-1 and the blanket drying cylinder 3-1 diminishes, then resistance strain gauge force transducer output is after change is sent, it is big that the output voltage of transmitter becomes, during current potential that the current potential of ordering as TP1 is ordered greater than TP2, then diode D1 conducting, form positive-feedback circuit, make to be output as high level, triode TR1 saturation conduction makes relay J 2 adhesives behind the coil electricity of relay J 2, frequency converter drives clamping motor 2-2 and reverses under given rotating speed, rubber blanket 2-1 moves to left, and the pressure between rubber blanket 2-1 and the bearing roller 2-4 is reduced, and the fabric shrinkage reduces until reaching process value; When shrinkage diminishes, then the fabric between rubber blanket 2-1 and the blanket drying cylinder 3-1 hangs down the arc change greatly, then the output voltage of resistance strain gauge force transducer output after change is sent diminishes, during current potential that the current potential absolute value of ordering as TP1 is ordered greater than TP2, then comparison amplifier A2 just is output as, diode D2 conducting, triode TR2 saturation conduction, make relay machine J1 adhesive behind the coil electricity of relay J 1, frequency converter drives clamping motor 2-2 just to be changeed, rubber blanket 2-1 moves to right, and the pressure between rubber blanket 2-1 and the bearing roller 2-4 is increased, and the fabric shrinkage increases until reaching process value.

Claims

1, the stable sanforizer of a kind of shrinkage, comprise into cloth mechanism (1), preshrunk mechanism (2) and drying mechanism (3), between preshrunk mechanism (2) and drying mechanism (3), be connected to tension pick-up (4), it is characterized in that: also have shrinkage control circuit (5), the output of the input termination tension pick-up (4) of shrinkage control circuit (5), the clamping motor (2-2) in the output termination preshrinking machine structure (2) of shrinkage control circuit (5).

2, the stable sanforizer of shrinkage according to claim 1 is characterized in that: described shrinkage control circuit (5) is the polarity discriminating control circuit.

3, the stable sanforizer of shrinkage according to claim 2 is characterized in that: described polarity discriminating circuit is made of reference circuit, comparison amplifying circuit, relay drive circuit.

4, the stable sanforizer of shrinkage according to claim 2 is characterized in that: described polarity discriminating circuit is a frequency conversion control circuit.