CN210788661U

CN210788661U - Strip steel coiling and uncoiling system

Info

Publication number: CN210788661U
Application number: CN201921492225.8U
Authority: CN
Inventors: 胡志威; 杨国良; 李春明; 廖砚林
Original assignee: Johnson Electric SA
Current assignee: Johnson Electric SA; Wisdri Engineering and Research Incorporation Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-06-19
Anticipated expiration: 2029-09-09

Abstract

The utility model provides a strip steel coil taking and discharging system, which comprises a coiling machine, a compression roller, a strip threading guide plate and a coil discharging vehicle, wherein the strip threading guide plate is provided with an upper coiling working position, a lower coiling working position and an idle position; the utility model discloses a can reliably fix the tape tail in the 5 o 'clock direction or 7 o' clock direction of coil of strip through the bearing roller, can curl up and down; through this bearing roller location tape tail, the saddle can not contact with the coil of strip before the coil of strip unloads, has solved the adverse effect that the change of coil of strip radius brought reel and steel coil car when thick band batches.

Description

Strip steel coiling and uncoiling system

Technical Field

The utility model belongs to the technical field of the metallurgy, concretely relates to strip coil of strip gets coil of strip system of unloading.

Background

In a cold rolling continuous production unit, particularly for finished strip steel, it is often required to simultaneously realize up-and-down coiling. For example, stainless steel production units, and in order to facilitate the paper packing operation, lower coiling is usually selected; however, some downstream customers only open the coil upwards, and do not want the strip steel on the side with attachments (such as accretion generated by steel roller conveying in an annealing furnace) in the incoming material to be downwards brought to the roller surface of a downstream unit, thereby affecting the quality of the plate surface. In a production line set having a wide range of strip thicknesses, not only is it necessary to accurately and reliably position a thick or thin strip in the 5 o 'clock or 7 o' clock direction when winding the strip up and down, but also the change in the winding radius when winding the thick strip is taken into consideration.

At present, when most units adopt lower coiling, the tail of the belt can be smoothly positioned in the direction of 7 o' clock. However, if the strip tail is positioned in the 5 o' clock direction when the strip steel is coiled, the strip tail of thick strip steel can be suddenly flicked to open on the belt wrapper to damage equipment due to the self rigidity of the strip steel; the strip tail of the thin strip steel can scatter and scratch the surface of the strip steel, and the yield is reduced. And for thick strip steel, the last two turns of strip steel coiling can bring about significant changes of the coil diameter, if the lifting height of the coil stripping vehicle cannot be matched with the coil stripping vehicle, the coiling block is forced to be lifted, and the mandrel has the risk of being broken or deformed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a strip coil of strip gets unloads a roll system, can solve prior art's partial defect at least.

The embodiment of the utility model relates to a strip steel coiling and uncoiling system, which comprises a coiling machine, a strip threading guide plate arranged at the inlet side of the coiling machine and a coil unloading vehicle arranged below the coiling machine,

the tape threading guide plate is connected with a guide plate swinging mechanism so as to have an upper coiling working position, a lower coiling working position and an idle position;

a saddle and a saddle lifting driving mechanism are arranged on a body of the coil stripping car, a carrier roller and a carrier roller lifting driving mechanism for driving the carrier roller to lift are arranged on the saddle, and the axial direction of the carrier roller is parallel to the axial direction of a winding drum of the coiling machine;

the steel coil rolling device further comprises a pressing roller, the axial direction of the pressing roller is parallel to the axial direction of the winding drum of the coiling machine, and the pressing roller is connected with a pressing roller swinging mechanism so as to have a non-pressing position deviated from the coiling machine and a pressing position which is in rolling contact with the steel coil and is pressed between the 2 o 'clock position and the 5 o' clock position of the steel coil.

As one embodiment, the strip steel coiling and uncoiling system further comprises a coil booster.

As one embodiment, the wrapper comprises a belt wrapper having an upper wrap arm and a lower wrap arm; alternatively, the wrapper comprises two jaws arranged on the winding drum in opposite directions.

When the wrapper comprises a belt wrapper, the press roller is arranged on a frame of the belt wrapper in a swinging mode; when the wrapper roller comprises two jaws, the press roller is arranged on a civil engineering foundation in a workshop in a swinging mode.

As an example, the saddle is a V-shaped saddle, and the idler is arranged between two saddle beds of the saddle.

In one embodiment, the carrier roller lifting driving mechanism includes a carrier roller lifting hydraulic cylinder, an overflow pipeline is connected to an oil path connected to a rodless cavity of the carrier roller lifting hydraulic cylinder, and an overflow valve is arranged on the overflow pipeline.

In one embodiment, a pressure relay is arranged on an oil path connected with a rodless cavity of the carrier roller lifting hydraulic cylinder.

As one embodiment, the coil stripper car further comprises a position detection mechanism for detecting the position of the carrier roller on the saddle, wherein when the carrier roller is located below a preset judgment position, the position detection mechanism sends a first signal, and when the carrier roller is located above the preset judgment position, the position detection mechanism sends a second signal; when the carrier roller is located at the preset judging position, the carrier roller and the saddle can simultaneously contact a steel coil.

In one embodiment, the position detection mechanism comprises a proximity switch and a sensing block, wherein one sensing element is arranged on the saddle, and the other sensing element is arranged on the carrier roller.

As one embodiment, a steering pinch roll is arranged on the inlet side of the threading guide plate.

The embodiment of the utility model provides a following beneficial effect has at least:

the utility model provides a strip steel coiling system, through setting up bearing roller and compression roller, the bearing roller cooperates with compression roller and can press the tape tail better when coiling up, and solve the problem that the thick tape tail flicks or the thin tape tail scatters in the tail-flicking process better; the strip tail can be well pressed when the steel coil is coiled downwards only by the carrier roller, and the strip tail is conveniently and reliably positioned in the 5 o 'clock direction or the 7 o' clock direction of the steel coil, so that the strip steel coiling system can be simultaneously suitable for upper coiling and lower coiling, is flexible in production and wide in applicability, and is convenient for bundling and transporting the steel coil and adapting to downstream production procedures. Simultaneously, through this bearing roller location tape tail, the saddle can not contact with the coil of strip before the coil of strip is unloaded to the adverse effect that the change of coil of strip radius brought reel and steel coil car when having solved thick area and batching.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a steel coil car provided by an embodiment of the present invention;

FIG. 2 is a schematic side view of a steel coil car according to an embodiment of the present invention;

fig. 3 is a schematic diagram of oil paths of a saddle driving hydraulic cylinder and a carrier roller lifting hydraulic cylinder provided by the embodiment of the present invention;

fig. 4 is a schematic view of a relative movement state of a saddle and a carrier roller provided by the embodiment of the invention;

FIG. 5 is a schematic structural view of a strip steel coiling and uncoiling system provided in the embodiment of the present invention;

FIG. 6 is a schematic view of the belt winding aid and the winding drum in the upper winding operation according to the embodiment of the present invention;

FIG. 7 is a schematic view of the belt winding aid and the winding drum in the lower winding operation according to the embodiment of the present invention;

FIG. 8 is a schematic view of a belt tail pressed by a carrier roller and a press roller in cooperation with each other during upper coiling according to an embodiment of the present invention;

fig. 9 is a schematic view of a tail of a backing roll during lower coiling according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

As fig. 1 and fig. 2, the embodiment of the utility model provides a coil of strip car 1, which comprises a carriage body, be equipped with saddle 11 and saddle lift actuating mechanism on the automobile body, be equipped with on the saddle 11 be suitable for with 7 rolling contact's of coil of strip bearing roller 12 and be used for the drive bearing roller lift actuating mechanism that bearing roller 12 rose, the axial and the level of bearing roller 12 are parallel.

The vehicle body and the saddle 11 provided thereon are conventional in the art, and the specific structure thereof will not be described in detail herein. The car body can move between a coiling position and a uncoiling position.

The carrier roller 12 is suitable for rolling contact with the steel coil 7, namely when the saddle 11 supports the steel coil 7, the axial direction of the carrier roller is parallel to the axial direction of the steel coil; or the axial direction of the carrier roller is parallel to the translation direction of the vehicle body.

Wherein preferably a V-shaped saddle 11 is used, in a further preferred version, as shown in fig. 2 and 4, said idler 12 is arranged between two saddles 111 of said saddle 11, further preferably two saddles 111 are arranged symmetrically with respect to the axis/vertical symmetry plane of the idler 12. Based on the scheme, the carrier roller 12 can vertically rise and press the strip tail at the 6 o ' clock position of the steel coil 7, and the strip tail can be well pressed by the strip steel coiling scheme that the strip tail is positioned in the 5 o ' clock direction or the 7 o ' clock direction, so that the strip tail is conveniently and reliably positioned, and the bundling transportation of the steel coil 7 and the adaptation to the downstream production process are facilitated.

The steel coil car 1 that this embodiment provided, through set up bearing roller 12 on saddle 11, this bearing roller 12 can go up and down and with 7 rolling contact of coil of strip, can push down the strip tail at the strip coil of strip material coiling in-process, can avoid the drift in-process thick area to collapse and beat equipment, thin strip scatter the scheduling problem.

The carrier roller 12 can ascend with the saddle 11 and can be driven by a carrier roller lifting drive mechanism, the carrier roller lifting drive mechanism preferably comprises a carrier roller lifting hydraulic cylinder 13, and the axial direction of an output shaft of the carrier roller lifting hydraulic cylinder 13 is vertical. In an alternative embodiment, the idler 12 lifting stroke achieved by the idler lifting hydraulic cylinder 13 is relatively small, for example in the range of 80-150 mm.

Further preferably, as shown in fig. 1, a guide mechanism is provided on the saddle 11 for guiding the elevating movement of the idler 12. The guiding mechanism can adopt a slide block and slide rail matching type structure, or adopt a guide rod 16 and sliding sleeve matching type structure. In the embodiment, as shown in fig. 1, the guide mechanism comprises a guide rod 16 and a sliding sleeve, the guide rod 16 is arranged at the bottom of the carrier roller 12, and the sliding sleeve is arranged on the saddle 11; more preferably, two guide rods 16 are provided, and are respectively fixed at two ends of the carrier roller 12 along the axial direction of the carrier roller, and two sliding sleeves are correspondingly provided.

The saddle lifting driving mechanism can adopt conventional lifting equipment such as a hydraulic cylinder, an air cylinder and the like, and in the embodiment, the saddle lifting driving mechanism comprises a saddle driving hydraulic cylinder 14.

The carrier roller 12 is mainly used for pressing the tail of the strip in the coiling process, namely the carrier roller 12 contacts the steel coil 7 in advance of the saddle 11/saddle 111, and in the process that the saddle 11 ascends subsequently to support the steel coil 7, the carrier roller 12 is driven to ascend along with the saddle 11, but the contact position of the carrier roller 12 and the steel coil 7 is kept unchanged, so that the rodless cavity of the carrier roller lifting hydraulic cylinder 13 continuously overflows in the ascending process of the saddle 11, and in addition, the overflow of the rodless cavity of the carrier roller lifting hydraulic cylinder 13 can be caused by the increase of the coil diameter when the steel coil 7 is coiled, especially under the condition of coiling the thick strip; correspondingly, as shown in fig. 3, an overflow pipeline is connected to the oil path connected to the rodless cavity of the carrier roller lifting hydraulic cylinder 13, and an overflow valve 133 is arranged on the overflow pipeline. As will be readily appreciated, the rodless cavity of the idler lift cylinder 13 continues to overflow until the saddle 11 contacts the coil 7, at which time there is no relative movement between the saddle 11 and the idler 12.

Further preferably, the carrier roller 12 is further provided with a pressure detection unit, which can detect whether the carrier roller 12 is in contact with the steel coil 7, so as to ensure the safety of the equipment and the safety of the steel coil 7. In one embodiment, as shown in fig. 3, the pressure detecting unit employs a pressure relay 136, that is, the pressure relay 136 is disposed on the oil path connected to the rodless cavity of the idler roller lifting hydraulic cylinder 13.

The carrier roller 12 is mainly used for pressing the strip tail in the coiling process, so that the output acting force required by the carrier roller lifting hydraulic cylinder 13 is far smaller than the output acting force required by the saddle driving hydraulic cylinder 14 (supporting the whole coil of steel 7), the type selection of the saddle driving hydraulic cylinder is superior to that of the carrier roller lifting hydraulic cylinder, and the carrier roller lifting hydraulic cylinder 13 is smaller than that of the saddle driving hydraulic cylinder 14.

In a preferred embodiment of the rolling car 1, the oil passage connected to the rod-less chamber of the seat drive cylinder 14 has a high-pressure operation mode and a low-pressure operation mode, and an oil passage switching mechanism for switching the two operation modes is provided. In the low-pressure working mode, the oil inlet pressure of the rodless cavity of the saddle driving hydraulic cylinder 14 is relatively small, and the saddle 11 can be driven to slowly rise, so that on one hand, the carrier roller 12 can be driven to slowly rise to be in contact with the steel coil 7, and the carrier roller 12, the carrier roller lifting hydraulic cylinder 13 and the strip steel are protected; on the other hand, the saddle 11 can be matched with the overflow of the rodless cavity of the carrier roller lifting hydraulic cylinder 13 well by slowly lifting, so that the carrier roller lifting hydraulic cylinder 13 can be protected well; on the other hand, under the low pressure mode of saddle drive pneumatic cylinder 14, saddle 11 slowly touches the book back, saddle drive pneumatic cylinder 14 switches into high pressure mode again, makes saddle 11 hold coil of strip 7, can prevent that saddle 11 from causing excessive jacking to coil of strip 7 and reel 21.

In the process that the supporting roller 12 presses the strip tail and the saddle 11 rises to contact the steel coil 7, the force acting on the steel coil 7 and the winding drum 21 is the force provided by the supporting roller lifting hydraulic cylinder 13 all the time, and the output acting force of the supporting roller lifting hydraulic cylinder 13 is far smaller than the output acting force of the saddle driving hydraulic cylinder 14, so that the potential risk of excessive jacking caused by the steel coil 7 and the winding drum 21 is far smaller than the mode of directly jacking and touching the coil by the saddle for the conventional coil stripping vehicle.

In one embodiment, the saddle-driving hydraulic cylinder 14 employs the following hydraulic circuit, which may have the above-described high-pressure and low-pressure operating modes:

(1) lifting and lowering drive of saddle 11:

referring to fig. 3, the steel coil car 1 is controlled to ascend and descend at a fast and slow speed by a proportional valve 141, a first pressure reducing valve 143 is used for controlling the pressure of a rodless cavity of the saddle-driven hydraulic cylinder 14 when the steel coil car 1 ascends, in a specific application embodiment, the unloading pressure of a high-pressure relief valve 147 can be set to be 15MPa, and the unloading pressure of a low-pressure relief valve 145 can be set to be 3.5 MPa. The balance valve 144 can ensure smooth lifting of the coil car 1 and prevent the steel coil 7 from falling down accidentally. In the coil-unloading area, a control signal (namely, the parallel position of the proportional valve 141) is input to the proportional valve 141, hydraulic oil flows to a rodless cavity of the saddle-driving hydraulic cylinder 14 through the first pressure reducing valve 143 and the balance valve 144, and the steel coil car 1 ascends. When the electromagnetic valve 142 is in power failure (namely, in a parallel position shown in fig. 3), the pressure of the first pressure reducing valve 143 is a manual set value (for example, the pressure can be set to 2.5MPa), the check valve 146 is opened, the low-pressure overflow valve 145 is put into operation, the saddle-driving hydraulic cylinder 14 operates in a low-pressure operation mode, and after the saddle 11 rises to contact the steel coil 7, the pressure of the rodless cavity of the saddle-driving hydraulic cylinder 14 exceeds the pressure of the low-pressure overflow valve 145, the low-pressure overflow valve 145 overflows, and the steel coil car 1 does not rise any more. In the coil conveying area, the steel coil car 1 needs to lift coils at high pressure, the solenoid valve 142 is energized (cross position) while the proportional valve 141 gives a lift signal, the pilot pressure of the first pressure reducing valve 143 is the system pressure (14MPa), and meanwhile, the check valve 146 is closed, so that the saddle-driving hydraulic cylinder 14 operates in the low-pressure working mode.

(2) Lifting and lowering driving of the carrier roller 12:

as shown in fig. 3, when the electromagnet b of the electromagnetic directional valve 131 is energized, the pressure oil flows through the one-way second pressure reducing valve 132 to the rodless cavity of the carrier roller hydraulic lifting cylinder 13, the carrier roller 12 rises, and when the electromagnet a of the electromagnetic directional valve 131 is energized, the oil flows into the rod cavity of the carrier roller hydraulic lifting cylinder 13, and the carrier roller 12 descends. After the positioning of the belt tail is completed, the saddle 11 rises, the pressure of the rodless cavity of the carrier roller lifting hydraulic cylinder 13 rises, the pressure exceeds the set unloading pressure of the third overflow valve 133 to overflow, the piston rod retracts relatively until the carrier roller 12 and the saddle 11 do not move relatively and contact the steel coil 7 at the same time.

As a preferred embodiment of the steel coil car 1, the steel coil car 1 further includes a position detection mechanism for detecting a position of the carrier roller 12 on the saddle 11, and the position detection mechanism detects the position of the carrier roller 12 on the saddle 11, that is, can detect a relative position between the carrier roller 12 and the saddle 111, wherein when the carrier roller 12 is located below a preset determination position, the position detection mechanism sends a first signal, and when the carrier roller 12 is located above the preset determination position, the position detection mechanism sends a second signal; when the carrier roller 12 is at the preset judging position, the carrier roller 12 and the saddle 11 can simultaneously contact the steel coil 7. Through this position detection mechanism, can detect whether bearing roller 12 and saddle 11 touch simultaneously and roll up, perhaps whether possess the condition that touches the book simultaneously, be convenient for accurate reliable detect this coil of strip car 1 whether contact coil of strip 7, guarantee the going on of automatic coil stripping.

In one embodiment, the position detection mechanism employs the proximity switch 15, which is easy to install in a small space, reliable in operation, and low in cost. As shown in fig. 1, 2 and 4, the position detection mechanism includes a proximity switch 15 and a sensing block, one of which is mounted on the saddle 11 and the other of which is mounted on the idler 12. For the structure of the guide mechanism provided on the saddle 11, for example, a structure of a guide rod 16 and a sliding sleeve matching type is adopted, as shown in fig. 1, fig. 2 and fig. 4, a sensing block is installed on the guide rod 16 installed at the bottom of the carrier roller 12, the proximity switch 15 is correspondingly installed on the saddle 11, and the installation positions of the two sensing elements are satisfied: the distance L from the descending limit position of the carrier roller 12 to the position where the carrier roller 12 and the saddle 11 can simultaneously contact the steel coil 7 is achieved, the proximity switch 15 can continuously sense the sensing block, and if the ascending height of the carrier roller 12 relative to the saddle 11 exceeds L, the proximity switch 15 cannot sense the sensing block. Of course, other position detection devices (e.g., infrared detection, etc.) are also suitable for use in this embodiment.

Example two

Based on the steel coil car 1 provided in the first embodiment, that is, the steel coil car 1 with the carrier roller 12 on the saddle 11, the present embodiment provides a coil touch detection method for the steel coil car 1, including:

detecting the pressure borne by the saddle 11, sending a third signal when the pressure borne by the saddle 11 exceeds a first preset pressure value, and sending a fourth signal when the pressure borne by the saddle 11 does not exceed the first preset pressure value;

detecting the pressure borne by the carrier roller 12, sending a fifth signal when the pressure borne by the carrier roller 12 exceeds a second preset pressure value, and sending a sixth signal when the pressure borne by the carrier roller 12 does not exceed the second preset pressure value;

when the fourth signal and the fifth signal are received simultaneously, the carrier roller 12 is judged to be in contact with the steel coil 7, and the saddle 11 is not in contact with the steel coil 7;

and when the third signal and the fifth signal are received simultaneously, the saddle 11 and the carrier roller 12 are judged to be in contact with the steel coil 7 simultaneously.

In the first embodiment, it has been mentioned that the pressure applied to the carrier roller 12 can be detected by arranging a pressure relay on an oil path connected to a rodless cavity of the carrier roller hydraulic cylinder 13; similarly, the pressure applied to the saddle 11 can be detected by providing a pressure relay in the oil path connected to the rodless chamber of the saddle-driving hydraulic cylinder 14.

EXAMPLE III

detecting the position of the carrier roller 12 on the saddle 11, sending a first signal when the carrier roller 12 is positioned below a preset judgment position, and sending a second signal when the carrier roller 12 is positioned above the preset judgment position; when the carrier roller 12 is at the preset judging position, the carrier roller 12 and the saddle 11 can simultaneously contact the steel coil 7;

when the second signal and the fifth signal are received at the same time, the carrier roller 12 is judged to be in contact with the steel coil 7, and the saddle 11 is not in contact with the steel coil 7;

and when the first signal and the fifth signal are received simultaneously, the saddle 11 and the carrier roller 12 are judged to be in contact with the steel coil 7 simultaneously.

In the first embodiment, it has been mentioned that the pressure applied to the idler 12 can be detected by providing a pressure relay 136 on the oil path connected to the rodless cavity of the idler lift cylinder 13. The detection of the position of the idler 12 on the saddle 11 may be by means of a proximity switch 15, the specific position detection mechanism not being described in detail here.

In this embodiment, a mode of combining pressure detection and position detection is adopted, and compared with a mode of setting one set of pressure relay for rough judgment on each of the hydraulic circuit of the saddle driving hydraulic cylinder 14 and the hydraulic circuit of the carrier roller lifting hydraulic cylinder 13, only one set of pressure relay 136 needs to be set in this embodiment, so that the cost of detection elements is reduced. And the position detection is the direct detection of whether there is relative motion between the carrier roller 12 and the saddle 11, is not influenced by jacking resistance, pressure fluctuation of a hydraulic system and the like, has high and reliable detection result precision, can fully ensure the accuracy and reliability of the coil touch detection result by combining the pressure detection with the position detection, and avoids causing damage to the steel coil 7 and the coiler mandrel 21.

The above-mentioned method of detecting a kiss-roll is described below by way of a specific example:

the specifications of the saddle-driving hydraulic cylinder 14 are: 160/110-1100 x 2, the specification of the roller lifting hydraulic cylinder 13 is: 50/36-100X 1.

Debugging:

(1) the saddle 11 is lifted for a plurality of rounds in an idle load manner, the minimum pressure of the rodless cavity of the saddle driving hydraulic cylinder 14 when the saddle 11 is stably lifted is determined to be P1, and the pressure of the first pressure reducing valve 143 in the figure 3 is set to be (P1+1) MPa; and lifting the carrier roller 12 in an idle state for a plurality of rounds, determining that the minimum pressure of the rodless cavity of the carrier roller lifting hydraulic cylinder 13 is P2 when the carrier roller 12 is stably lifted, setting the pressure of the second pressure reducing valve 132 in FIG. 3 to be (P2+1) MPa, setting the signal trigger pressure of the pressure relay 136 to be (P2+0.5) MPa, and setting the unloading pressure of the third overflow valve 133 to be (P2+1.5) MPa.

(2) The steel coil 7 is placed in the saddle 11, the supporting roller 12 rises to contact the steel coil 7, at the moment, the rising height of the supporting roller 12 relative to the saddle 11 is L, the position of the proximity switch 15 is adjusted, when the rising height of the supporting roller 12 is larger than L, the proximity switch 15 cannot detect the induction block on the guide rod 16, the sending switching value signal SBE is 0, if the rising height of the supporting roller 12 relative to the saddle 11 is smaller than L, the proximity switch 15 can continuously detect the induction block on the guide rod 16, and the sending switching value signal SBE is 1.

Coil stripping:

(1) when the coil is unloaded, the carrier roller 12 rises to the highest position first, the electromagnetic directional valve 131 loses power and returns to the middle position, the state of the proximity switch 15 is SBE equal to 0, then the saddle driving hydraulic cylinder 14 operates in the low-pressure working mode, the saddle 11 slowly rises, when the carrier roller 12 contacts the steel coil 7, the pressure of the rodless cavity of the carrier roller lifting hydraulic cylinder 13 rises and is greater than (P2+0.5) MPa, the pressure relay 136 sends a switching value signal FD equal to 1, the saddle 11 stops rising, and the tail positioning is started. At this time, the pressure relay 136 sends a signal FD of 1 and the proximity switch 15 sends a signal SBE of 0, so that the determination roller 12 contacts the steel coil 7 and the saddle 11 does not contact the steel coil 7.

(2) The positioning with the tail is completed, the saddle-driving hydraulic cylinder 14 continues to operate in the low-pressure working mode, the saddle 11 slowly rises (of course, if the positioning with the tail is not needed, the saddle 11 continuously slowly rises without pause), there are:

the lifting force F1 provided by the saddle driving hydraulic cylinder 14 is 2 (P1+1-P1) x pi D²40192N (160 mm as D)

Unloading resistance F2 of rodless cavity of carrier roller lifting hydraulic cylinder 13 is (P2+1.5) x pi d²5887N (1.5 MPa for P2 and 50mm for d)

Because F1> F2, in the process of saddle 11 rising, the no pole chamber of bearing roller lift hydraulic cylinder 13 continues the overflow, until saddle 11 contacts coil of strip 7, saddle 11 and bearing roller 12 have not had relative motion, the pressure drop of the no pole chamber of bearing roller lift hydraulic cylinder 13, pressure relay 136 sends switching value signal FD and equals 0, and at this moment, proximity switch 15 just can detect the response piece on guide arm 16, sends switching value signal SBE and equals 1. At this time, the pressure relay 136 sends a signal FD of 0 and the proximity switch 15 sends a signal SBE of 1, which are simultaneously satisfied, and it is determined that the saddle 11 and the idler 12 simultaneously contact the steel coil 7.

After the saddle 11 is detected to contact the steel coil 7, the saddle driving hydraulic cylinder 14 can be switched to operate in a high-pressure working mode, and subsequent coil unloading operations such as reducing the diameter of the winding drum 21 are performed.

Example four

The embodiment provides a strip steel coiling and uncoiling method, which comprises the following steps:

s1, after the strip steel is coiled to be cut, a carrier roller 12 is lifted up from the coil stripping car 1, and the carrier roller 12 is in rolling contact with the steel coil 7 at 6 o' clock direction of the steel coil 7;

s2, the winding drum 21 of the winding machine 2 continues to rotate until the strip tail is in place, wherein the strip tail is positioned in the 5 o 'clock direction of the steel coil 7 during the upper winding and in the 7 o' clock direction of the steel coil 7 during the lower winding;

s3, the saddle 11 on the coil discharging car 1 rises to support the steel coil 7, the reel 21 is reduced in diameter, and the coil discharging car 1 moves out of the coiling station.

For the scheme that the supporting roller 12 can be lifted from the coil stripping car 1, the steel coil car 1 provided in the first embodiment is preferably adopted, and the specific structure of the steel coil car 1 is not described herein again.

Preferably, the jacking oil path of the saddle driving hydraulic cylinder 14 (i.e., the oil path connected to the rodless cavity of the saddle driving hydraulic cylinder) is provided with a low-pressure working mode and a high-pressure working mode, then in S3, the saddle 11 firstly rises to be in contact with the steel coil 7 in the low-pressure working mode, and the jacking oil path of the saddle driving hydraulic cylinder 14 is switched to the high-pressure working mode to support the steel coil 7, so that excessive jacking can be avoided.

Further, preferably, the scheme that the carrier roller 12 is provided with a carrier roller lifting hydraulic cylinder 13 is adopted, and then: in S1, the carrier roller 12 is brought into contact with the steel coil 7 in the low-pressure working mode of the saddle driving hydraulic cylinder 14 and the jacking action of the carrier roller lifting hydraulic cylinder 13; at S3, the rodless chambers of the idler lift cylinders 13 overflow adaptively as the saddle 11 rises.

Further optimizing the strip steel coiling and uncoiling method, the method also comprises the following steps:

s01, expanding the diameter of the winding drum 21 of the winding machine 2, swinging the tape threading guide plate 5 to a winding position, and positioning the winding aid;

s02, the steering pinch roll 6 and the winding drum 21 start to rotate and carry out threading, wherein during upper winding, an upper pinch roll of the steering pinch roll 6 serves as a steering roll before winding, and during lower winding, a lower support roll of the steering pinch roll 6 serves as a steering roll before winding;

and S03, after the winding drum 21 is wound with a plurality of circles of strip steel (for example, 3-5 circles), the upper pinch roll is lifted, the coiling aid returns, the strip threading guide plate 5 returns, and the coiling machine 2 continues to coil.

In an alternative embodiment, the wrapper is a belt wrapper 4, and the belt wrapper 4 preferably is capable of operating in both an upper winding mode and a lower winding mode, and accordingly the belt wrapper 4 has an upper wrap arm and a lower wrap arm. The belt wrapper 4 is conventional in the art and its specific construction is omitted here. In other embodiments, the wrapper roll 21 may be provided with two jaws in opposite directions to assist the winding. In the further refinement scheme, when the thickness of the strip steel is less than 2.6mm, the winding aid adopts the belt winding aid 4, in S01, when winding up, the lower arm of the belt winding aid 4 holds the winding drum 21 tightly, and when winding down, the upper arm of the belt winding aid 4 holds the winding drum 21 tightly; when the thickness of the strip steel is more than 2.6mm, the wrapper is two jaws which are arranged on the winding drum 21 and have opposite directions.

The coiling machine 2, the threading guide plate 5 and the steering pinch roll 6 can adopt the conventional equipment in the field. The threading guide 5 can preferably swing up and down around the lower support roll of the turning pinch roll 6, while the method provided by the embodiment preferably can simultaneously realize upper coiling and lower coiling, so that the threading guide 5 has an upper coiling working position and a lower coiling working position, the lower coiling working position is preferably located between the upper coiling working position and the idle position of the threading guide 5, and the specific working position is only required to ensure smooth threading, which is easily determined and adjusted by a person skilled in the art.

Further preferably, in the above threading operation, after the tape head passes through the turning pinch roll 6, the upper pinch roll is pressed down, and the tape head smoothly enters between the winding drum 21 and the holding arm of the belt wrapper 4 through the tape threading guide 5 (when the jaws are adopted, the operation is performed correspondingly), and rotates with the winding drum 21 under the wrapping of the belt.

The method is further optimized, as shown in fig. 5 and fig. 8, S1, when the strip steel is cut during the upper coiling, a press roller 3 is also used to make rolling contact with the steel coil 7 and the pressing position is between 2 o 'clock and 5 o' clock of the steel coil 7. The pressing roller 3 can be driven to approach or separate from the steel coil 7 by a pressing roller swinging mechanism, which can employ a swinging driving mechanism conventional in the art (for example, refer to the swinging driving of the threading guide 5 described above). The point of rotation of the roll 3 can be arranged compactly on the frame of the belt wrapper 4, or can be arranged separately on a civil foundation if the belt wrapper 4 is not provided. The press roller 3 is matched with the carrier roller 12, so that the belt tail can be pressed well, and the belt tail is prevented from bouncing off or scattering.

The strip steel coiling and uncoiling method provided by the embodiment can conveniently and reliably position the strip tail in the 5 o 'clock direction or the 7 o' clock direction of the steel coil 7 by arranging the carrier roller 12 so as to press the strip tail, so that the method can be simultaneously suitable for upper coiling and lower coiling, is flexible in production and wide in applicability, and is convenient for bundling and transporting the steel coil 7 and adapting to downstream production processes. Meanwhile, the belt tail is positioned through the carrier roller 12, and the saddle 11 can not be in contact with the steel coil 7 before coil unloading, so that the adverse effect of the change of the radius of the steel coil 7 on the winding drum 21 and the steel coil car 1 when the thick belt is coiled is solved. In addition, the method can solve the problem that the thick strip tail flicks or the thin strip tail scatters in the tail flicking process.

EXAMPLE five

As shown in fig. 5, the present embodiment provides a strip steel coiling system, which includes a coiler 2, a strip threading guide 5 disposed on an inlet side of the coiler 2, and a coil discharge car 1 disposed below the coiler 2, wherein the strip threading guide 5 is connected with a guide swing mechanism so as to have an upper coiling working position, a lower coiling working position, and an idle position; the coil unloading vehicle is characterized in that a saddle 11 and a saddle lifting driving mechanism are arranged on a vehicle body of the coil unloading vehicle 1, a carrier roller 12 and a carrier roller lifting driving mechanism for driving the carrier roller 12 to lift are arranged on the saddle 11, and the axial direction of the carrier roller 12 is parallel to the axial direction of a winding drum 21 of the winding machine 2.

The coil discharging vehicle 1 preferably adopts the coil discharging vehicle 1 provided in the first embodiment, and the specific structure thereof is not described herein again.

As shown in fig. 5-9, it is further preferable to arrange a turn pinch roll 6 on the entry side of the threading guide 5 to facilitate threading of the strip.

The coiling machine 2, the strip threading guide plate 5, the guide plate swinging mechanism and the steering pinch roll 6 can adopt conventional equipment in the field, and the detailed description is omitted.

The threading guide plate 5 can preferably swing up and down around a lower support roller of the turning pinch roller 6, the lower coiling working position of the threading guide plate 5 is preferably positioned between the upper coiling working position and the idle position thereof, and the specific working position can ensure smooth threading, which is easy to determine and adjust by a person skilled in the art.

Further, the strip steel coiling and uncoiling system also comprises a coil aid which is matched with the coiling machine 2, so that the strip steel coiling efficiency can be improved. In one embodiment, as shown in fig. 5-7, the wrapper comprises a belt wrapper 4, the belt wrapper 4 having an upper wrap arm and a lower wrap arm, and being capable of engaging both the upper and lower winding modes; the belt wrapper 4 is conventional in the art and its specific construction is omitted here. In a further embodiment, the wrapper comprises two jaws arranged on the reel 21 in opposite directions. In the further refinement scheme, when the thickness of the strip steel is less than 2.6mm, the winding aid adopts a belt winding aid 4, when the strip steel is wound up, the lower arm of the belt winding aid 4 holds the winding drum 21, and when the strip steel is wound up, the upper arm of the belt winding aid 4 holds the winding drum 21; when the thickness of the strip steel is more than 2.6mm, the wrapper is two jaws which are arranged on the winding drum 21 and have opposite directions.

As shown in fig. 5 and 8, the strip steel coiling system further comprises a press roller 3, the axial direction of the press roller 3 is parallel to the axial direction of the winding drum 21 of the coiler 2, and the press roller 3 is connected with a press roller swinging mechanism so as to have a non-pressing position deviated from the coiler 2 and a pressing position which is in rolling contact with the steel coil 7 and is between 2 o 'clock and 5 o' clock positions of the steel coil 7. The roll oscillating mechanism may employ an oscillating drive mechanism conventional in the art (e.g., refer to the guide plate oscillating mechanism described above). The swinging rotary point of the press roll 3 can be compactly arranged on the frame of the belt wrapper 4, and if the belt wrapper 4 is not arranged, the belt wrapper can be independently arranged on a civil foundation; namely, the press roll 3 is arranged on the frame of the belt wrapper 4 or on the civil engineering foundation of a workshop in a swinging way.

According to the strip steel coiling system provided by the embodiment, the carrier roller 12 and the compression roller 3 are arranged, the carrier roller 12 and the compression roller 3 are matched, so that the strip tail can be well pressed during coiling, and the problem that the thick strip tail flicks or the thin strip tail scatters in the tail flicking process is well solved; and only by the carrier roller 12 can press the tape tail better when coiling down, conveniently and reliably position the tape tail in the 5 o 'clock direction or the 7 o' clock direction of the steel coil 7, thus the strip steel coiling system can be simultaneously suitable for coiling up and coiling down, has flexible production and wide applicability, and is convenient for bundling and transporting the steel coil 7 and adapting to downstream production procedures. Meanwhile, the belt tail is positioned through the carrier roller 12, and the saddle 11 can not be in contact with the steel coil 7 before coil unloading, so that the adverse effect of the change of the radius of the steel coil 7 on the winding drum 21 and the steel coil car 1 when the thick belt is coiled is solved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a strip steel coiling unloads a roll system, includes the coiling machine, arranges the threading baffle in the coiling machine entrance side and arranges the coil stripping car in the coiling machine below, its characterized in that:

2. The strip steel coiling and uncoiling system of claim 1, wherein: also comprises a wrapper.

3. The strip steel coiling and uncoiling system of claim 2, wherein: the winding assistor comprises a belt winding assistor, and the belt winding assistor is provided with an upper holding arm and a lower holding arm; alternatively, the wrapper comprises two jaws arranged on the winding drum in opposite directions.

4. The strip steel coiling and uncoiling system of claim 3, wherein: when the wrapper comprises a belt wrapper, the press roller is arranged on a frame of the belt wrapper in a swinging mode; when the wrapper roller comprises two jaws, the press roller is arranged on a civil engineering foundation in a workshop in a swinging mode.

5. The strip steel coiling and uncoiling system of claim 1, wherein: the carrier roller is arranged between two saddle platforms of the saddle.

6. The strip steel coiling and uncoiling system of claim 1, wherein: the carrier roller lifting driving mechanism comprises a carrier roller lifting hydraulic cylinder, an overflow pipeline is connected to the side of an oil way connected with a rodless cavity of the carrier roller lifting hydraulic cylinder, and an overflow valve is arranged on the overflow pipeline.

7. The strip steel coiling and uncoiling system of claim 6, wherein: and a pressure relay is arranged on an oil circuit connected with a rodless cavity of the carrier roller lifting hydraulic cylinder.

8. The strip steel coiling and uncoiling system of claim 1, wherein: the coil stripping vehicle further comprises a position detection mechanism for detecting the position of the carrier roller on the saddle, when the carrier roller is positioned below a preset judgment position, the position detection mechanism sends a first signal, and when the carrier roller is positioned above the preset judgment position, the position detection mechanism sends a second signal; when the carrier roller is located at the preset judging position, the carrier roller and the saddle can simultaneously contact a steel coil.

9. The strip steel coiling and uncoiling system of claim 8, wherein: the position detection mechanism comprises a proximity switch and an induction block, wherein one induction element is arranged on the saddle, and the other induction element is arranged on the carrier roller.

10. The strip steel coiling and uncoiling system of claim 1, wherein: and a steering pinch roll is arranged on the inlet side of the threading guide plate.