CN202464862U - Non-stop reel-changing material receiving device - Google Patents

Abstract

A non-stop roll changing and receiving device, including a double-station turret, a transmission device, a tension detection roller, a detection and confirmation device, and an operating device. A cross support is arranged on the double-station turret, and two horizontal positions of the cross support are There are front and rear roller shafts at the ends respectively, upper and lower guide rollers are respectively arranged at both ends of the vertical direction of the cross support, and an upper connection device and a lower connection device are respectively provided above and below the front roller shaft. The frequency conversion motor transmission control with tension closed-loop and speed closed-loop adopted by the utility model can ensure the synchronization of the pre-acceleration of the standby shaft and the operating speed of the equipment when changing rolls, and the tension does not fluctuate, thereby greatly reducing broken ends and missing coatings; automatic deviation correction The unique three-roller and two-nip zone that can independently realize motion control can ensure that the bottoming of the winding is not wasted, the winding process can not be twisted, and the winding end surface can not be edged. The continuous operation of the equipment is improved, and the winding shaft can be changed without adhesive tape, which can greatly improve production efficiency and reduce production cost.

Description

A non-stop roll changing material receiving device

technical field

The utility model belongs to papermaking equipment, in particular to a processing equipment for high-speed coating in the papermaking industry.

Background technique

The existing coating process has the disadvantages of unstable tension, easy material breakage, easy coating leakage, low efficiency, and large consumption in the non-stop roll changing process.

The Chinese patent with the patent number of "200920113829.7" provides a "non-stop roll changing and feeding device", but it still cannot meet the production needs.

Utility model content

The problem to be solved by the utility model is to provide a new non-stop roll change and material receiving device for roll change without disturbance.

In order to solve the above technical problems, the following technical solutions are adopted: a non-stop roll changing and receiving device, including a double-station turret, a transmission device, a tension detection roller, a detection and confirmation device, and an operating device. There is a cross bracket, the horizontal ends of the cross bracket are respectively equipped with front and rear roller shafts, the vertical ends of the cross bracket are respectively equipped with upper and lower guide rollers, and the upper and lower ends of the front roller shaft are respectively equipped with upper joints and Connect the device.

When unwinding, the upper connecting device is composed of the upper pressing rubber roller, the sawtooth cutting knife and its action mechanism; the lower connecting device is composed of the lower pressing rubber roller, the sawtooth cutting knife and its operating mechanism; the front and rear rollers The shafts are respectively driven by frequency conversion motors with tension closed loop and speed closed loop, and the double-station turret is driven by a set of worm gear transmissions.

When winding, the double-station turret is equipped with an automatic deviation correction device, and the front and rear rollers are respectively driven by frequency conversion motors with tension open loop and speed closed loop; the double-station turret is driven by a set of worm gear transmission; the upper connection device It is composed of a sawtooth cutter, a groove embossed rubber roller with interlocking air blowing and its action mechanism, and the lower connection device is composed of a rubber roller that can move up and down, forward and backward, and its action mechanism.

The detection and confirmation device is composed of photoelectric or limit switch; the operating device is composed of touch screen and PLC logic control unit.

The action mechanism is an air cylinder.

The frequency conversion motor transmission control with tension closed-loop and speed closed-loop adopted by the utility model can ensure the synchronization of the pre-acceleration of the standby shaft and the operating speed of the equipment when changing rolls, and the tension does not fluctuate, thereby greatly reducing broken ends and missing coatings; automatic deviation correction The unique three-roller and two-nip zone that can independently realize motion control can ensure that the bottoming of the winding is not wasted, the winding process can not be twisted, and the winding end surface can not be edged. The continuous operation of the equipment is improved, and the winding shaft can be changed without adhesive tape, which can greatly improve production efficiency and reduce production cost.

Description of drawings

Fig. 1 is a schematic diagram of the unwinding process of Embodiment 1 of the utility model.

Fig. 2 is a schematic diagram of the winding process of Embodiment 2 of the present utility model.

Detailed ways

Embodiment 1: As shown in Figure 1, a non-stop roll changing and feeding device includes a double-station turret 8, a transmission device, a tension detection roller 1, a detection and confirmation device, and an operating device. 8 is provided with a cross support, and the two ends of the cross support horizontal direction are respectively provided with front and rear roller shafts 9,10, and the vertical direction two ends of the cross support are respectively provided with upper and lower guide rollers 5,7. An upper connection device 2 and a lower connection device 3 are respectively arranged above and below the front roller shaft 9; The pressing rubber roller, sawtooth cutting knife and its action mechanism are composed; the front and rear roller shafts 9 and 10 are respectively driven by frequency conversion motors with tension closed loop and speed closed loop, and the double station turret 8 is driven by a set of worm gear transmission.

The detection and confirmation device is composed of photoelectric or limit switch; the operating device is composed of touch screen and PLC logic control unit, and the action mechanism is cylinder.

The working process of unwinding and changing rolls is as follows (the following paper splicing method is taken as an example): 1) Paper splicing preparation: when the old unwinding 6 on the rear roller shaft 10 of the double-station turret is in normal operation, the operator first rolls it on the front roller Install the card on the shaft 9 to complete another new unwinding 4, and paste the double-sided tape and butterfly tape as required, and the tail of the paper should correspond to the position detection photoelectric switch installed at the turntable of the unwinding shaft head on the transmission side.

2) Paper splicing preparation: After the preparation work is finished, when the old paper roll is unrolled to a certain diameter, a paper splicing preparation signal is sent manually, the double-station turret 8 rotates to the position, and the lower splicing device 3 is swung into place by the cylinder 14.

3) Acceleration of the new paper roll: Since the paper splicing process is completed under the high-speed operation of the coating machine, it must be ensured that the line speed of the new paper roll is consistent with the speed of the coating machine before the paper splicing. The new paper roll is accelerated by the operator operating the touch screen (this acceleration process is directly controlled by the frequency conversion motor with speed closed loop to ensure speed synchronization). During the acceleration process of the new paper roll 4, the old paper roll 6 continues to unwind. When the 4-line speed of the new paper roll reaches synchronization, the PLC sends an action signal to allow paper splicing. So far, the paper splicing preparations are completed, and the paper splicing action is allowed.

4) Paper splicing action: The paper splicing permission signal is sent manually, and the PLC controls the pressure roller through the solenoid valve to press the running paper web onto the new paper roll 4 according to the joint position model detected by the photoelectric switch for the first time, and the new and old paper webs Bonded together by double-sided tape, tear the butterfly-shaped tape; PLC controls the movement of the sawtooth cutter through the solenoid valve according to the joint position model detected by the photoelectric switch for the second time, and cuts off the paper web in operation. Old paper roll 6 The variable frequency motor controlled by PLC stops rotating instantaneously. At the same time, due to the adoption of PLC tension closed-loop control, the non-disturbance switching between old and new paper webs is realized.

5) Reset: After the above steps are completed, the pressure roller and cutter quickly leave the paper roll and return to the initial position; the lower splicing device 3 returns to the original position, and the automatic paper splicing process is completed so far. Subsequently, the new paper roll 4 is unloaded continuously, the old paper roll 6 is removed from the paper core by manual operation, a new paper roll is installed as required, and a new roll changing and paper splicing cycle is started.

Embodiment 2: As shown in Figure 2, a non-stop roll changing and receiving device includes a double-station turret 8, a transmission device, a detection and confirmation device, and an operating device. Automatic deviation correction is provided under the double-station turret 8 Device 15, the front and rear roller shafts 9 and 10 are respectively driven by frequency conversion motors with tension open loop and speed closed loop; the double station turret 8 is driven by a set of worm gear transmission; The air-blowing groove embossing rubber roller and its action mechanism are composed, and the lower connection device 3 is composed of the rubber roller and its action mechanism that can move up and down.

Other structures are with embodiment 1.

The working process of winding and changing rolls is as follows (taking the paper splicing process as an example): 1) Preparation for changing rolls: the old winding shaft 11 on the rear roller shaft 10 of the double-station turret 8 is locked by the operating tool during the normal winding process. Complete installation of another new winding shaft 12 at the front roller shaft 9 .

2) Paper splicing preparation: After the preparation work is finished, when the old reel 11 rolls paper to a certain diameter, a paper splicing preparation signal is sent manually, the double-station turret 8 rotates in place, and the new reel 11 starts to accelerate manually. After the speed of the new winding shaft 11 is synchronized with the speed of the coating machine, the grooved roller of the upper connecting device 2 is manually operated to drop, and the rubber roller of the lower connecting device 3 is pushed out at the same time, and then the lower connecting device 3 is raised and started. So far, the preparatory conditions for changing rolls in three rolls and two nips are met. The whole action process is guaranteed by the positioning interlocking of the photoelectric switch and the limit switch installed on the frame.

3) Paper splicing action: After the unwinding part has finished changing rolls, when the joint passes the new rewinding shaft 12, the paper splicing action is manually operated. At this time, the sawtooth cutter moves to cut the paper, and at the same time, the curved air pipe installed between the grooves of the groove roller of the upper joint device 2 is connected to the electric blowing by the solenoid valve controlled by PLC, so that the paper cut by the sawtooth cutter 13 One nip of the three-roller two-nip formed by the tail enters the other nip, thus successfully completing the switching of the winding shaft. The old winding shaft 11 stops rotating instantly by the frequency conversion motor effect of PLC control.

4) Reset: After the above steps are completed, the manual operation of paper splicing stops. The cylinder of the grooved roller mechanism of the upper connection device 2 is pushed out by the PLC control through the action of the solenoid valve, so that the groove roller leaves the paper web and returns to its original position; the action of the rubber roller of the lower connection device 3 is delayed (the time can be set, the purpose is to ensure The tightness of the bottoming of the roll), the falling cylinder first moves to drop the roll, and then moves the cylinder back and forth to retract the rubber roller mechanism; in addition, in order to ensure that the winding end face is neatly installed a set of automatic deviation correction device 15 for the winding frame. Similarly, the whole action process is still guaranteed by the positioning interlocking of the photoelectric switch and the limit switch installed on the frame. At this point, the automatic paper splicing process ends. Then, manually unload the old paper roll, replace it with a new winding shaft, and start a new cycle of changing rolls and splicing paper.

The above is the detailed process description of the continuous production of the entire high-speed coating machine without disturbance.

Claims (5)

1. do not shut down the change of lap material-receiving device for one kind; Comprise double turret, driving device, tension force measuring roll, detection and confirm device, handling device; It is characterized in that: on the double turret, be provided with cross frame; The two ends of cross frame horizontal direction are respectively equipped with forward and backward roll shaft, and cross frame vertical direction two ends are respectively equipped with upper and lower deflector roll, are respectively equipped with in preceding roll shaft above and below to be hinged with to put and descend to be hinged with and put.

2. the change of lap material-receiving device of not shutting down according to claim 1; It is characterized in that: when unreeling; Last tipping is put by last impulse material rubber roll, sawtooth cutting knife and actuating mechanism thereof and is formed, and following tipping is put by impulse material rubber roll, sawtooth cutting knife and actuating mechanism thereof are formed down; By the variable-frequency motor transmission of tension closed loop and speed closed loop, the double turret is by a cover worm gearing transmission respectively for forward and backward roll shaft.

3. the change of lap material-receiving device of not shutting down according to claim 1 is characterized in that: during rolling, the double turret has automatic deviation rectifying device, and forward and backward roll shaft is respectively by the variable-frequency motor transmission of tension open loop and speed closed loop; The double turret is by a cover worm gearing transmission; Last tipping is put by the rill dandy roll and the actuating mechanism thereof of toothed cutting knife, chain air blowing and is formed, and following tipping is put by the rubber roll and the actuating mechanism thereof of front and back action up and down and formed.

4. the change of lap material-receiving device of not shutting down according to claim 1 is characterized in that: detection and affirmation device are made up of photoelectricity or limit switch; Handling device is made up of touch-screen and PLC logic control element.

5. according to any described change of lap material-receiving device of not shutting down in claim 2 or 3, it is characterized in that: described actuating mechanism is a cylinder.

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