A kind of novel mica band Double-station winding device
Technical field
The utility model relates to mica tape process units field, in particular to a kind of novel mica band double-station winding dress
It sets.
Background technique
Mica is a kind of laminar silicic acid salt mineral generated naturally, is the nonmetallic mineral of thin transparent sheet, has excellent
Good physical property and electric property and the characteristic for still keeping the above performance at high operating temperatures, it has complete chemistry lazy
Property and nonflammable type, it is most important that it has anti-high pressure, corona-resistant and the characteristic of radiation protection, therefore it is mainly as one
The very important insulating materials of kind is widely used in the fields such as electronics, telecommunication, electric appliance, aviation, instrument, metallurgy.Mica tape is with thin
Sheet garrulous mica is raw material, is first crushed mica for tiny scale by crushing, used after mica material is mixed it is chemical or
Mechanical feedback copy paper forms, and mica tape needs to be wound into mica band reel after manufacture, further to divide or directly
Sale.
One kind as proposed in the Chinese utility model patent that patent announcement number is CN205820464U is used for mica paper
The rolling-up mechanism of production, matches with drying wheel, is erected at drive thereon including the first support and the second support and activity
Moving axis, wind-up roll is provided among drive shaft and drying wheel realizes the winding of winding paper;Driving the tip of the axis is provided with driving
Equipment comprising the driven disc of driving shaft end is set, with driven disc by the driving disc spacing pressing of CONTACT WITH FRICTION, and is driven actively
The power-equipment of disk rotation.
The mechanism is the practical articulamentum made of wool and articulamentum is made to impregnate lubricating oil, utilizes the viscosity of wool
With the lubrication of lubricating oil, a kind of close contact flexible is realized, reduce fluctuation and realize stable winding.But in wrapup procedure
In, due to mica tape on wind-up roll continuous coiling so that the diameter of wind-up roll constantly increases, meeting after the diameter of wind-up roll increases
So that coiling one is enclosed required winding strip length and is increased;And the mechanism is in winding, due to the driving wind-up roll of driving equipment
The revolving speed of rotation is constant, and the speed of drying wheel transmission is also constant, so that mica tape still will receive certain drawing in wrapup procedure
Power so that mica tape in wrapup procedure there is a situation where being torn, so that causing the quality of mica tape reduces, cause cloud
The waste of master tape.
Utility model content
The purpose of the utility model is to provide a kind of novel mica band Double-station winding devices, by the way that regulating and controlling mechanism is arranged,
Real-time control adjusting is carried out according to output revolving speed of the real-time monitoring of optoelectronic switch to driving machine, to guarantee that mica tape is being wound
It will not stretch tight very tight in the process, reduce the waste of mica tape, improve the quality of finished product after processing.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of novel mica band Double-station winding device, including rack and set gradually rolling unit on the rack,
Guiding axis group, buffer roll, cutting mechanism and traction roller, the rolling unit include being rotatably arranged in rack for winding
Wind-up roll and driving machine for driving wind-up roll to rotate, the driving dynamoelectric signal is connected with regulating and controlling mechanism, the regulation machine
Structure includes:
Detection components are set in rack, for detecting the diameter change of wind-up roll and exporting apart from detected value;
Control assembly is connected to detection components, receives response detected value, and control driving machine according to apart from detected value.
By using above-mentioned technical proposal, traction roller carries out guiding transmission to mica tape, and mica tape side passes through buffer roll
It is transmitted on rolling unit with guiding axis group, wind-up roll is rotated by driving machine so that the mica tape on wind-up roll rotates
It is wrapped on wind-up roll;The tension mistake for avoid continuous increase for winding roller diameter in wrapup procedure mica tape being subject to
It is broken greatly, regulating and controlling mechanism is set in rack, is measured by diameter change of the detection components to wind-up roll, then by distance
Measured value is exported to control assembly, and control assembly is controlled according to revolving speed of the measured value to driving machine, to guarantee mica tape
It will not stretch tight very tight in wrapup procedure, reduce the waste of mica tape, improve the quality of finished product after processing.
Further, there are two the rolling units, two rolling unit horizontal alignments are arranged on the rack, described
Wind-up roll is air-expanding shaft, and one end of the wind-up roll is sealedly connected with air compressor machine, and the lateral wall of the wind-up roll, which runs through, winding
The interior diameter of roller, the winding roller is greater than the diameter of wind-up roll.
By using above-mentioned technical proposal, pass through the convenient mica tape coiling on a wind-up roll of two rolling units of setting
Length reach preset requirement after, can be after cutting mechanism cuts off mica tape directly by connector around to another rolling unit
On, it overcomes and original need to shut down, cut off, changing core further around the cumbersome of volume, when next rolling unit starts coiling again
The core that changes for carrying out the wind-up roll after the completion of a winding, saves the winding time, improves winding efficiency;Receipts are arranged on wind-up roll
Scroll cylinder, coiling takes winding roller after the completion of winding on winding roller from wind-up roll during mica tape is wound
Out, then to mica tape collection storage is carried out;Wind-up roll is air-expanding shaft, and air compressor machine does not work during changing core, since winding is rolled
The diameter that the interior diameter of cylinder is greater than wind-up roll facilitates winding roller in the installation of wind-up roll;The hollow compressor operation of wrapup procedure makes
Air bag protrusion and winding roller on wind-up roll contradict, so that winding roller and wind-up roll rotate synchronously.
Further, the detection components include two optoelectronic switches being correspondingly arranged with wind-up roll, the control assembly
Including PLC controller, the optoelectronic switch electric signal is connected to PLC controller, and detects output and control apart from detected value to PLC
Device, the PLC controller electric signal are connected to driving machine.
By using above-mentioned technical proposal, it is measured in real time using diameter of the optoelectronic switch to wind-up roll, is controlled using PLC
Device processed is received apart from detected value, and according to the revolving speed that controls driving machine apart from detected value, to adjust the winding speed of wind-up roll
Degree.
Further, the guiding axis group includes two guiding axis for being oppositely arranged wind-up roll oblique upper, two guiding axis
It is arranged with gantry rotation;Two guiding axis and traction roller horizontal alignment are arranged.
By using above-mentioned technical proposal, due to being set in rack there are two rolling unit, complete to receive in a rolling unit
After volume, the outer diameter of wind-up roll increases with the coiling of mica tape, influences to avoid the increase of the diameter of wind-up roll after winding
The winding of next rolling unit, each wind-up roll are correspondingly provided with a guiding axis, and the upper of wind-up roll is arranged in guiding axis
Side avoids the generation touching of mica tape and another wind-up roll in wrapup procedure from rubbing.
Further, the buffer roll includes roll shaft and through the roller set being rotatably arranged on roll shaft, and the two of the roll shaft
End is vertically fixed with the first cylinder, and cylinder body of two first cylinders away from roll shaft one end is fixed on the rack.
By using above-mentioned technical proposal, buffer roll plays the role of being tensioned mica tape in wrapup procedure, receives at one
When roll unit coiling mica tape reaches preset value, buffer roll moves under the drive of cylinder, so that mica belt sag, avoids
During cutting mica tape, mica tape is pulled off under the action of by the winding pulling force of wind-up roll;Since the both ends of buffer roll are solid
It is arranged on the piston rod of the first cylinder calmly, roll shaft cannot rotate in wrapup procedure, by the way that roller set is arranged on roll shaft,
Reduce the frictional force of mica tape and buffer roll in wrapup procedure.
Further, the cutting mechanism include the Cutting platform being obliquely installed and with Cutting platform cutting disposed in parallel
Compression bar;The Cutting platform is provided along its length cutter, and the cutting compression bar corresponds to cutter and offers with cutter in shearing
The cutting groove of shape;The both ends of the cutting compression bar are vertically fixed with the second cylinder, and two second cylinders are away from cutting pressure
The cylinder body of bar one end is fixed on Cutting platform, and the cutting compression bar stress is in the second cylinder and toward and away from cutting
Platform.
By using above-mentioned technical proposal, mica tape is cut by cutting mechanism, in the mistake that mica tape is wound
Cheng Zhong cuts compression bar under the action of the second cylinder far from Cutting platform so that in wrapup procedure cutting mechanism not with mica tape
Contact, does not influence the winding of mica tape;When needing to cut, cutting compression bar drives flat towards cutting under the action of the second cylinder
Platform cuts mica tape.
Further, the cutting mechanism is arranged between buffer roll and traction roller and close to traction roller one end.
By using above-mentioned technical proposal, cutting mechanism is positioned close to one end of traction roller, so that in cutting process
The buffer length of mica tape is longer, increases workable time when cutting, reduces a possibility that mica tape is pulled off.
Further, one end of two wind-up rolls is coaxially provided with driven gear, and the output shaft of the driving machine is solid
Surely it is equipped with driving gear, the driven gear is engaged in above driving gear and the diameter of driven gear is greater than driving gear
Diameter.
By using above-mentioned technical proposal, by engaging for driving gear and driven gear, driving gear is in driving machine
Driving is lower to drive driven gear rotation, so that wind-up roll rotates;The diameter that the diameter of driven gear is greater than driving gear is logical
The gear ratio for crossing gear carries out mechanical reduction.
Further, two wind-up rolls are equipped with rotation seat, the rotation seat and machine away from one end of driven gear
Frame rotation connection, the wind-up roll run through rotation seat;The rack correspond to wind-up roll equipped with being used for away from one end of rotation seat
The U-shaped seat of wind-up roll is supported, the driven gear is in axial sliding connection with wind-up roll.
Rotation seat is set in rack for convenience of replacement of the roller on wind-up roll is wound by using above-mentioned technical proposal,
One end that micro- lift wind-up roll is equipped with driven gear during changing core separates driven gear with driving gear, and rotates winding
Roller makes rotation seat rotate, so that driven gear far from driving gear, then skids off driven gear, most from wind-up roll
Winding roller is taken out from wind-up roll afterwards;Be arranged in rack U-shaped seat be used to support wind-up roll, facilitate winding lift with turn
It is dynamic.
Further, the rack is fixed with the support base for being used to support wind-up roll away from the side of rotation seat, described
Support base is set side by side with U-shaped seat, and the upper surface of the support base is lower than the bottom surface of U-shaped seat U type slot.
By using above-mentioned technical proposal, by the way that support base is arranged, in use for placing wind-up roll, wind-up roll
One end of wind-up roll is taken out from U-shaped seat after rotation and is placed on support base, the height of support base is greater than the bottom of U type slot
Face is inclined to set after wind-up roll is placed on support base, and winding roller is facilitated to take out.
Further, coaxially there are two baffle ring, two baffle rings for fixation close to one end of driven gear for the wind-up roll
It is contradicted respectively with the side wall of U-shaped seat, the rack corresponds to driven gear and is fixed with and driven gear side away from the side of baffle ring
The baffle that wall contradicts.
By using above-mentioned technical proposal, on wind-up roll be arranged baffle ring wind-up roll is connected on U-shaped seat so that
The axial restraint of wind-up roll avoids wind-up roll generation axial dipole field during rotation, by the way that baffle is arranged on the rack, due to
Driven gear is slidably connected with wind-up roll, and setting baffle avoids driven gear from falling.
In conclusion the utility model has the following beneficial effects: being carried out in real time with diameter of the optoelectronic switch to wind-up roll
Detection, is received using PLC controller apart from detected value, and according to the revolving speed for controlling driving machine apart from detected value, to adjust
The rolling speed of wind-up roll;By the way that two rolling units are arranged, after the completion of winding under the cutting of cutting mechanism, by by connector
Work is wound next time on around to next wind-up roll, has been saved and has been needed to shut down in traditional mode of production process, cut off, change
Time required for core improves production efficiency;In cutting process, due to cutting compression bar by mica tape compress so that mica tape not
It can continue to transmit, by the way that buffer roll is arranged, the movement of buffer roll is so that mica tape becomes relaxed state from tensioning state, so that cloud
Master tape is not torn in cutting process;Facilitate installation and replacement of the winding roller on wind-up roll by the way that wind-up roll is arranged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment, mainly shows the working condition of wrap-up;
Fig. 2 is the partial structure diagram of the present embodiment, mainly shows the connection relationship of rolling unit and rack;
Fig. 3 is the system block diagram of the present embodiment, mainly shows the component relationship of regulating and controlling mechanism;
Fig. 4 is the portion A enlarged drawing in Fig. 2, mainly shows the connection relationship of wind-up roll and rack;
Fig. 5 is the partial structure diagram of the present embodiment, mainly shows the positional relationship between wind-up roll and guide roller;
Fig. 6 is the partial structure diagram of the present embodiment, mainly shows the position of buffer roll, cutting mechanism and traction roller
Set relationship;
Fig. 7 is the partial structure diagram of the present embodiment, mainly shows the connection between each component part of cutting mechanism
Relationship;
Appended drawing reference: 1, rack;11, rotation seat;12, U-shaped seat;13, support base;14, baffle;2, rolling unit;21, it receives
Winding up roller;22, driving machine;23, roller is wound;24, driven gear;25, driving gear;26, baffle ring;27, tracheae;3, guiding axis;
4, buffer roll;41, roll shaft;42, roller set;5, cutting mechanism;51, Cutting platform;511, cutter;52, compression bar is cut;521, it cuts
Slot;6, traction roller;61, motor;7, the first cylinder;8, the second cylinder;91, optoelectronic switch;911, transmitter;912, receiver;
92, PLC controller.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
A kind of novel mica band Double-station winding device, as shown in Figure 1, including rack 1 and being successively set in rack 1
Rolling unit 2, guiding axis group, buffer roll 4, cutting mechanism 5 and traction roller 6, one end of traction roller 6 is fixed with motor 61
And motor 61 is servo motor, the rotation of traction roller 6 is under the drive of motor 61 to carry out guiding transmission, mica tape to mica tape
Side is transmitted on rolling unit 2 by buffer roll 4 and guiding axis group.
As shown in Figure 2 and Figure 4, there are two rolling units 2 and including being rotatably arranged on the winding in rack 1 being used to wind
Roller 21 and for drive wind-up roll 21 rotate driving machine 22, and driving machine 22 be servo motor;One end of two wind-up rolls 21
It is coaxially provided with driven gear 24, the output shaft of driving machine 22 is fixed with driving gear 25, and driven gear 24 is engaged in
The diameter of 25 top of driving gear and driven gear 24 is greater than the diameter of driving gear 25, drive of the driving gear 25 in driving machine 22
Dynamic lower drive driven gear 24 rotates, so that wind-up roll 21 rotates, so that the mica tape rotation on wind-up roll 21 is wrapped in
On wind-up roll 21.
As shown in figures 1 and 3, the coiling due to mica tape on wind-up roll 21 and the diameter of wind-up roll 21 is increased,
The distance that 21 diameter of wind-up roll increases and coiling one is caused to enclose required mica tape increases, and is tensioned so as to cause mica tape taut
It is disconnected;To guarantee that mica tape can be wound by stablizing in wrapup procedure, avoid mica tape from being torn, 22 electric signal of driving machine is connected with
Regulating and controlling mechanism.Regulating and controlling mechanism includes:
Detection components are set in rack 1, for detecting the diameter change of wind-up roll 21 and exporting apart from detected value;
Control assembly is connected to detection components, receives response detected value, and control driving machine 22 according to apart from detected value.
According to arrangement above, the utility model can carry out real-time measurement to the diameter change of wind-up roll 21, and according to away from
Revolving speed from detected value control driving machine 22 guarantees that speed is kept constant between the transmission speed and wind-up roll 21 of drying wheel.
Wherein detection components include two correlation type optoelectronic switches 91 being arranged in a one-to-one correspondence with rolling unit 2, and photoelectricity is opened
Closing 91 includes the transmitter 911 and receiver 912 with the setting of 21 horizontal alignment of wind-up roll, transmitter 911 and receiver 912 about
The axisymmetrical of wind-up roll 21;Transmitter 911 connects to power supply, and 912 electric signal of receiver is connected to control assembly.
As shown in figure 3, control assembly includes PLC controller 92, PLC controller 92 selects relatively suitable PLC on the market
, while needing to be equipped with the common elements such as corresponding digital-to-analogue conversion module, servo controller, human-computer interaction interface, touch screen,
To realize industry control, it is uniformly controlled for convenience, network connection production scheduling room or production control of the PLC controller 92 by on-site
The computer of room processed.
As shown in figures 1 and 3,912 electric signal of receiver is connected to PLC controller 92, its collected data is exported
Onto PLC controller 92, PLC controller obtains the case where detecting 21 diameter change of wind-up roll according to data, and PLC controller 92 is logical
Servo controller sending control signal is crossed to control the revolving speed of driving machine 22.Since traction roller 6 has the driving of motor 61 to cloud
The transmission of master tape carries out auxiliary traction, to guarantee that the rolling speed of transmission speed and wind-up roll 21 of traction roller 6 is kept constant, from
And guarantee that mica tape can be sufficiently spread out without regard to being torn, so that the winding of mica tape is elastic consistent, PLC controller 92
Control signal is issued by servo controller, and adjustment is synchronized to the revolving speed of motor 61.Since drying takes turns the speed of transmission not
Become, mica tape coiling one is enclosed required length and increased, therefore motor 61 and the revolving speed of driving machine 22 slow down.
As shown in figure 5, for convenience of the storage after mica tape winding, wind-up roll 21 is air-expanding shaft and its lateral wall through there is receipts
Scroll cylinder 23, one end sealing of wind-up roll 21 are equipped with the tracheae 27 being connected to air compressor machine (not shown), winding roller 23
The diameter that interior diameter is greater than wind-up roll 21 facilitates winding roller 23 in the installation of wind-up roll 21, and the hollow compressor operation of wrapup procedure makes
Air bag protrusion and the winding roller 23 obtained on wind-up roll 21 contradicts, so that winding roller 23 is rotated synchronously with wind-up roll 21.
As shown in Figure 2 and Figure 4, for convenience of replacement of the winding roller 23 on wind-up roll 21, two wind-up rolls 21 deviate from from
One end of moving gear 24 is equipped with rotation seat 11, and rotation seat 11 and rack 1 are rotatablely connected, and wind-up roll 21 runs through rotation seat 11, machine
Frame 1 corresponds to wind-up roll 21 equipped with the U-shaped seat 12 for being used to support wind-up roll 21 away from one end of rotation seat 11;Due to driven gear
24 be relatively large in diameter, takes to guarantee that winding roller 23 is able to carry out, and driven gear 24 is in axial sliding connection with wind-up roll 21,
Changing one end that micro- lift wind-up roll 21 is equipped with driven gear 24 during core separates driven gear 24 with driving gear 25, and turn
Dynamic wind-up roll 21 makes rotation seat 11 rotate, so that driven gear 24 is far from driving gear 25.Rack 1 deviates from rotation seat 11
Side be fixed with the support base 13 for being used to support wind-up roll 21, support base 13 is set side by side with U-shaped seat 12, support base 13
Upper surface is lower than the bottom surface of U-shaped seat 12U type groove mouth, and wind-up roll 21 takes one end of wind-up roll 21 after rotation from U-shaped seat 12
It is placed on support base 13 out, the bottom surface that the height of support base 13 is greater than U type slot makes wind-up roll 21 be placed on support base 13
It is inclined to set after upper, winding roller 23 is facilitated to take out.
As shown in Figure 2 and Figure 4, to avoid wind-up roll 21 from moving axially during rotation, wind-up roll 21 close to from
One end of moving gear 24 is coaxially fixed there are two baffle ring 26, and two baffle rings 26 are contradicted with the side wall of U-shaped seat 12 respectively.Rack
1 corresponding driven gear 24 is fixed with the baffle 14 contradicted with 24 side wall of driven gear away from the side of baffle ring 26, due to driven
Gear 24 is slidably connected with wind-up roll 21, and setting baffle 14 avoids driven gear 24 from falling.
As shown in Figure 1 and Figure 5, due to being set in rack 1 there are two rolling unit 2, winding is completed in a rolling unit 2
Afterwards, the outer diameter of wind-up roll 21 increases with the coiling of mica tape, for avoid winding after wind-up roll 21 diameter increase and shadow
The winding of next rolling unit 2 is rung, guiding axis group includes two guiding axis 3 for being oppositely arranged 21 top of wind-up roll, and two are led
It is arranged to axis 3 and the rotation of rack 1, and the high settings such as guiding axis group and traction roller 6.After the completion of a rolling unit 2 is wound, lead to
It crosses mica tape coiling on different guiding axis 3, mica tape in wrapup procedure is avoided to touch with another wind-up roll 21
Touch friction.
As shown in figures 1 to 6, buffer roll 4 is arranged between guiding axis group and traction roller 6, and buffer roll 4 includes 41 He of roll shaft
Through be rotatably arranged on roll shaft 41 roller set 42, the both ends of roll shaft 41 be vertically fixed with the first cylinder 7 and with the first cylinder 7
Piston rod top end connection, the cylinder body of two the first cylinders 7 away from 41 one end of roll shaft are fixed in rack 1, for convenience of to the
The control of one cylinder 7,7 electric signal of the first cylinder are connected to PLC controller 92.Buffer roll 4 plays tensioning cloud in wrapup procedure
The effect of master tape, in wrapup procedure, the first cylinder 7 is shunk so that buffer roll 4 is lower than the height of guiding axis 3.Manually photoelectricity is opened
91 one initial preset value of setting are closed, when a 2 coiling mica tape of rolling unit reaches preset value, buffer roll 4 is first
It is moved up under the drive of cylinder 7, so that mica belt sag, avoids during cutting mica tape, mica tape is by wind-up roll 21
Winding pulling force under the action of be pulled off, while controlling cutting mechanism 5 and mica tape cut.
As shown in Figure 6 and Figure 7, cutting mechanism 5 includes the Cutting platform 51 that is obliquely installed and parallel with Cutting platform 51 sets
The cutting compression bar 52 set;Cutting platform 51 is provided along its length cutter 511, and the corresponding cutter 511 of cutting compression bar 52 offers
With cutter 511 in the cutting groove 521 of shearing shape;The both ends of cutting compression bar 52 are vertically fixed with the second cylinder 8, two the second gas
Cylinder 8 away from cutting 52 one end of compression bar cylinder body be fixed at Cutting platform 51 away from cutting 52 side side of compression bar on and second
The piston rod of cylinder 8 runs through Cutting platform 51, cuts 52 stress of compression bar in the second cylinder 8 and toward and away from Cutting platform
51;For convenience of accurately controlling to the second cylinder 8,8 electric signal of the second cylinder is connected to PLC controller 92.Meanwhile cutting mechanism
5 settings are between buffer roll 4 and traction roller 6 and close to 6 one end of traction roller, when upward under drive of the buffer roll 4 in the first cylinder 7
When mobile, cut compression bar 52 and moved under the drive of the second cylinder 8 towards Cutting platform 51, to be cut to mica tape.
Matrix implementation process: in wrapup procedure, optoelectronic switch 91 is measured in real time the diameter of wind-up roll 21 and incites somebody to action
What is detected is delivered in PLC controller 92 apart from detected value, PLC controller 92 according to apart from detected value to driving machine 22 and electricity
Machine 61 is controlled, so that the revolving speed of driving machine 22 and motor 61 constantly slows down, so that the rolling speed and biography of mica tape
Defeated speed is kept constant.
After the length of mica tape coiling reaches preset requirement on a wind-up roll 21, controlled by the first cylinder 7 in PLC
Elongation is so that buffer roll 4 moves up under the control of device 92, while the second cylinder 8 shrinkage band under the control of PLC controller 92
Dynamic cutting compression bar 52 is mobile towards Cutting platform 51, since buffer roll 4 moves upwardly so that mica tape is converted into from tensioning state
Relaxed state avoids making mica tape wind-up roll 21 since compression of the cutting compression bar 52 to mica tape is cut in cutting process
Rotation winding it is lower and break.
After the completion of cutting, the elongation of the second cylinder 8 drives cutting compression bar 52 mobile far from Cutting platform 51, the first cylinder 7
It moves down, by the top of the lower section of the mica belt lacing bypass buffer roller 4 after cutting and guiding axis 3, around being rolled onto next receipts
Work is wound next time on scroll cylinder 23.The driving machine 22 in the rolling unit 2 of winding work is completed in cutting, so that receiving
Winding up roller 21 stops operating;Then one end that micro- lift wind-up roll 21 is equipped with driven gear 24 makes driven gear 24 and driving gear 25
Separation, and rotate wind-up roll 21 and rotation seat 11 is rotated, wind-up roll 21 is placed on support base 13, it then will be driven
Gear 24 is skidded off from wind-up roll 21, then lifting wind-up roll 21 will the mica tape of winding roller 23 and coiling on winding roller 23
It takes out together.
After winding roller 23 and mica tape taking-up, the winding roller 23 of non-coiling is installed through on wind-up roll 21, so
After go to wind-up roll 21 wind-up roll 21 be reapposed in U-shaped seat 12, micro- lift wind-up roll 21 pacifies driven gear 24 again
On wind-up roll 21, and driven gear 24 is contradicted away from the side wall and baffle 14 of U-shaped 12 side of seat, waiting is received next time
Volume starts.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.