CN111573339A

CN111573339A - Double-layer synchronous unwinding equipment

Info

Publication number: CN111573339A
Application number: CN202010438064.5A
Authority: CN
Inventors: 滕小英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-08-25

Abstract

The invention relates to the technical field of spinning. The double-layer synchronous unwinding equipment is simple in structure and capable of improving unwinding synchronous precision, and comprises a base, wherein a cloth roll supporting mechanism and a conveying mechanism are sequentially arranged on the base along a cloth conveying direction; an impurity cleaning mechanism is also arranged on the base between the yardage roll supporting mechanism and the conveying mechanism; the cloth roll supporting mechanism comprises a pair of mounting side plates arranged on two sides of the front end of the base, two unwinding drums are arranged between the mounting side plates, and one cloth roll is mounted on each of the two unwinding drums; the conveying mechanism comprises a pair of stand columns arranged on two sides of the rear end of the base, two groups of pinch components arranged between the upper ends of the stand columns, and pinch driving components used for driving the two groups of pinch components to synchronously act. The invention can effectively meet the synchronous unwinding of double-layer cloth, ensures the synchronism and stability of unwinding, and has simple structure.

Description

Double-layer synchronous unwinding equipment

Technical Field

The invention relates to the technical field of spinning, in particular to double-layer synchronous unwinding equipment.

Background

The unwinding equipment for spinning is widely used in the production process of flat spinning processing, and has the functions of unwinding rolled cloth according to the standard feeding speed of subsequent processing equipment such as printing and dyeing equipment, compounding equipment, gold stamping equipment and the like, and then conveying the cloth to the subsequent processing equipment for reprocessing. At present, the traditional unwinding equipment mainly comprises an unwinding groove and an unwinding roller, wherein the unwinding roller generally comprises an upper clamping roller and a lower clamping roller which rotate actively, and the unwinding groove comprises a plurality of carrier rollers which are distributed in an arc shape; when in use, the cloth roll is prevented from being in the unwinding groove and contacting with the carrier roller, and can be kept in a free rotating state; the unwinding roller clamps and backwards conveys the cloth, so that the cloth roll is driven to freely rotate in the unwinding groove, unwinding is realized, the unwinding efficiency of the cloth is improved to a certain degree by the aid of the equipment, and the existing unwinding equipment still has certain defects in the using process and needs to be improved.

Firstly, when a composite process is carried out, two layers of cloth made of the same material or different materials are required to be glued and hot-pressed. Therefore, two rolls of different cloth materials need to be unwound simultaneously in many times, and the synchronism of unwinding can directly influence the stability of subsequent gluing and hot pressing. When the existing unwinding equipment is used for unwinding, two sets of independent motor drives are adopted, and the rotating speeds of the two sets of motors are subjected to unified circuit control, so that the synchronous unwinding effect is realized. However, this method not only has a complex control logic, but also requires a plurality of sensors to be provided for real-time acquisition of working conditions. This not only increases the risk of circuit failure, but also requires a greater investment in equipment costs.

Secondly, during the pre-processing and storage and transportation of the cloth, certain impurities are often present on the surface of the cloth, such as: cotton balls, thread ends, dust and the like, and if the impurities are not removed, the subsequent processes of gluing, hot pressing, printing and dyeing and the like can be influenced. In the traditional mode, rod impact or wind blowing is mainly adopted for removing the impurities, but in the practical process, the rod impact mode has certain damage risk to the cloth, meanwhile, due to the fact that the cloth is vibrated greatly, certain influence is caused on the stability of unwinding, and the mode is not suitable for high-speed unwinding equipment. Although the damage to the cloth can be reduced by the blowing mode, and the posture of the cloth is more stable in the unwinding process, the cloth is limited in purifying capacity due to the fact that the air source is far away, and meanwhile, dust removing equipment needs to be arranged to reduce dust flying in a workshop. Therefore, it would be a problem in the art to develop an unwinding apparatus that can effectively remove impurities on the surface of the cloth while preventing the cloth from being damaged.

Thirdly, traditional unwinding equipment adopts the form of many fixed carrier rollers that set up, also arranges many carrier rollers and is the form of a class half slot, adopts half mode bearing cloth book of embracing, and the carrier roller keeps the bearing to cloth book lower part on the one hand, and on the other hand passes through the rotation of self to improve cloth book and at unwinding in-process pivoted smooth and easy nature. The mode has little influence when the cloth roll is unwound at low speed, but for the cloth roll unwound at high speed, the jumping amplitude of the cloth roll is larger due to the lack of effective limitation of the middle upper part of the cloth, and the integral stability of the equipment is easily influenced. For this reason, an idea in the prior art is to provide a press roller above the cloth roll, and to limit the cloth roll by pressing the top of the cloth roll with the press roller, which seems to improve the stability of the cloth at first glance, however, the diameter of the cloth roll is smaller and smaller during the process of continuous unwinding, and the contact angle between the cloth roll and the press roller or the carrier roller is constantly changing, so that the problem of stability of the cloth roll cannot be substantially solved by simply limiting the top of the cloth roll. Furthermore, the efficiency of subsequent cloth processes is also limited due to the influence of the unwinding speed of the cloth roll.

Disclosure of Invention

The invention aims to provide a double-layer synchronous unwinding device which is simple in structure and capable of improving unwinding synchronous precision.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a double-layer synchronous unwinding device comprises a base, wherein a cloth roll supporting mechanism and a conveying mechanism are sequentially arranged on the base along the cloth conveying direction;

the cloth roll supporting mechanism comprises a pair of mounting side plates arranged on two sides of the front end of the base, two unwinding drums are arranged between the mounting side plates, and one cloth roll is mounted on each of the two unwinding drums;

the conveying mechanism comprises a pair of stand columns arranged on two sides of the rear end of the base, two groups of pinch components arranged between the upper ends of the stand columns, and pinch driving components for driving the two groups of pinch components to synchronously act; the two groups of pinch components are distributed up and down, and the cloth corresponding to the two cloth rolls respectively passes through the two groups of pinch components;

the pinch assembly comprises an upper pinch roller and a lower pinch roller, and two ends of the upper pinch roller and the lower pinch roller are respectively arranged on the stand column and are in running fit with the stand column; one end of each of the upper clamping roller and the lower clamping roller is provided with a first gear and a second gear respectively, and the first gear and the second gear are meshed with each other; one ends of the two upper clamping rollers, which are far away from the first gear, are respectively provided with a first synchronizing wheel and a second synchronizing wheel, and the first synchronizing wheel and the second synchronizing wheel are in transmission connection through a synchronous belt; the cloth is positioned between the upper nip roller and the lower nip roller.

Preferably, the pinch drive assembly comprises a gearbox and a drive motor, a first fixing plate is arranged on the outer surface of the upright column corresponding to one end of the upper pinch roll above the pinch roll, and a second fixing plate is arranged on the inner surface of the upright column; the driving motor is fixed on the second fixing plate, and the gearbox is fixed on the first fixing plate; and the power output end of the driving motor is connected with the power input end of the gearbox, and the power output end of the gearbox is connected with the upper clamping roller positioned above the gearbox.

Preferably, the first gear and the second gear are helical gears.

Preferably, an anion blower for eliminating static electricity on the cloth is further arranged behind the clamping and conveying assembly, the anion blower is fixedly mounted on the upright post, and the anion blower is positioned between the upper cloth and the lower cloth; the air outlet of the negative ion blower is Y-shaped, and two Y-shaped branches respectively face the two pieces of cloth.

Preferably, the unwinding barrel comprises a barrel body arranged transversely and an encircling assembly arranged in the barrel body, and a guide outlet is formed in the lower part of one side of the barrel body;

the encircling assembly at least comprises three ring supporting rollers extending along the length direction of the cylinder body, and an installation area of a cloth roll is formed between the ring supporting rollers; two ends of the ring carrier roller are respectively provided with a swing rod, one end of the ring carrier roller is installed on one end of the swing rod and is in running fit with the swing rod, and the other end of the swing rod is hinged in an installation hole in the side wall of the cylinder body through a hinge shaft;

the unwinding drum is further provided with a swing rod for driving the swing of the swing rod corresponding to each ring carrier roller so as to drive each ring carrier roller to clamp and embrace the clamping and embracing driving assembly on the cloth roll.

Preferably, a plurality of arc-shaped guide holes are uniformly formed in the two end faces of the cylinder body corresponding to the number of the ring carrier rollers, and the guide holes are matched with the swing tracks of the ring carrier rollers; the end heads at the two ends of the ring carrier roller correspondingly penetrate through the guide holes and form sliding fit with the guide holes;

embrace drive assembly and include connector and elasticity piece that resets, each the both ends of ring bearing roller all are provided with the connector, through elasticity piece interconnect that resets between the connector of two adjacent ring bearing rollers.

Preferably, the elastic restoring member is a coil spring.

Preferably, the end part of the ring carrier roller is provided with an external thread and is matched with a nut, and a position, close to the nut, of the ring carrier roller is provided with a limiting disc; the connector is sleeved on the ring carrier roller between the nut of the ring carrier roller and the limiting disc and is locked by the nut; the all sides of connector are provided with the annular rotation groove of round, install the swivel becket in the rotation groove, coil spring's one end and swivel becket are connected.

Preferably, the pressure self-adaptive adjusting device further comprises a pressure self-adaptive adjusting assembly, wherein the pressure self-adaptive adjusting assembly comprises a hydraulic adjusting cylinder, two sliding pistons matched with the hydraulic adjusting cylinder are arranged in the hydraulic adjusting cylinder, and the outer surface of each sliding piston is connected with the other end of the spiral spring; a pumping and discharging pipeline is also arranged on the side wall of the middle section of the hydraulic adjusting cylinder and is communicated with the hydraulic pump; the pressure self-adaptive adjusting assembly further comprises a pressure sensor which is installed on the ring carrier roller and used for detecting the pressure between the ring carrier roller and the cloth roll, and the pressure sensor and the hydraulic pump are both electrically connected with the controller.

Preferably, the end part of the swing rod, which is far away from one end of the ring carrier roller, is provided with a hook head, and the hook head penetrates through the mounting hole and extends out of the cylinder body; the expansion driving assembly comprises adjusting rings sleeved on the circumferential surfaces of the two ends of the barrel, and the adjusting rings are arranged on the barrel through bearings; the inner surface of the adjusting ring is provided with a tooth block matched with the hook head on the swing rod, and the outer surface of the adjusting ring is provided with a tooth ring; open drive assembly still including setting up the pivot that extends along barrel length direction in the barrel bottom, the middle section and the fixed motor transmission that opens that sets up in the barrel bottom of pivot are connected, and the both ends of pivot are fixed and are provided with adjusting gear, adjusting gear meshes with the ring gear on the adjustable ring mutually.

The beneficial effects of the invention are concentrated and expressed as follows: can effectually satisfy the synchronous decoiling of double-deck cloth, guarantee the synchronism and the stability of decoiling, and simple structure. Specifically, in the use process of the cloth roll supporting mechanism, the cloth roll is placed on the cloth roll supporting mechanism and can be kept in a freely rotatable state. The upper clamping roller and the lower clamping roller of the conveying mechanism are in transmission connection through the first gear and the second gear, so that the upper clamping roller can drive the lower clamping roller to synchronously rotate in the rotating process; meanwhile, the two upper clamping rollers are in transmission connection through the first synchronizing wheel, the second synchronizing wheel and the synchronous belt. Therefore, when the pinch driving assembly drives the upper pinch roll positioned above to rotate, the pinch driving assembly can drive the upper pinch roll positioned below to synchronously rotate, and further synchronous and stable conveying of double-layer cloth is realized. Compared with the traditional mode, the conveying mechanism has the advantages that the realization logic of synchronous conveying is simplified, the circuit fault risk caused by too many electric appliance parts is reduced, the control is more accurate, and the equipment cost is lower.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation of the transport mechanism;

FIG. 3 is a left side view of the contaminant removal mechanism of FIG. 1;

FIG. 4 is a view from direction A-A of the structure shown in FIG. 3;

FIG. 5 is a schematic view of the unwinding roll;

FIG. 6 is a rear view of FIG. 5;

FIG. 7 is a left side view of FIG. 5;

FIG. 8 is a view from the B-B direction of the structure shown in FIG. 5;

FIG. 9 is a schematic view of the structure shown in FIG. 8 in one use state;

FIG. 10 is a schematic view of the mounting of the connector;

fig. 11 is a schematic view of the internal structure of the hydraulic pressure adjustment cylinder.

Detailed Description

The double-layer synchronous unwinding equipment shown in figures 1-11 is used for unwinding and conveying a cloth roll 6 before printing, dyeing and compounding process equipment and the like so as to ensure the normal unwinding of subsequent processes. The unwinding device is provided with an installation base, namely the unwinding device comprises a base 1, the base 1 has more specific structures and can be in a table type or a groove type, and the like, and in order to ensure that the base has enough structural strength, the base is usually made of high-strength materials such as stainless steel, alloy steel and the like.

The cloth roll supporting mechanism 2 and the conveying mechanism 3 are sequentially arranged on the base 1 along the cloth conveying direction, the cloth roll supporting mechanism 2 is used for placing a cloth roll 6, and the cloth roll 6 can rotate freely on the cloth roll supporting mechanism 2. Conveying mechanism 3 is as the main power of unwinding, can the centre gripping and carry cloth, and through the conveying power that conveying mechanism 3 produced, drive cloth book 6 and rotate, realize unwinding.

The invention can simultaneously meet the requirements of preposed unwinding of process equipment for cloth printing and dyeing, compounding, gold stamping and the like, namely unwinding a single cloth, and can also be applied to unwinding two layers of cloth made of the same material or different materials before a compounding process. In this case, of course, the roll support 2 should be designed to accommodate both rolls 6, i.e. two unwinding reels 5. As shown in fig. 1, the cloth roll supporting mechanism 2 includes a pair of mounting side plates 4 disposed at both sides of the front end of the base 1, two unwinding drums 5 are disposed between the mounting side plates 4, and one cloth roll 6 is mounted on each of the two unwinding drums 5. With such a design, the present invention can mount two cloth rolls 6 at the same time, but the key point is how to synchronously unwind the two cloth rolls 6 with high stability by the conveying mechanism 3.

As shown in fig. 1 and 2, the conveying mechanism 3 of the present invention includes a pair of uprights 7 disposed at both sides of the rear end of the base 1, two sets of pinch assemblies disposed between the upper ends of the uprights 7, and a pinch driving assembly for driving the two sets of pinch assemblies to synchronously operate. The two groups of pinch components are distributed up and down, and the cloth corresponding to the two cloth rolls 6 respectively passes through the two groups of pinch components. In other words, the two groups of pinch components arranged at the upper part of the upright post 7 are distributed one above the other, and the cloth is clamped and conveyed by the two groups of pinch components respectively.

As shown in fig. 2, each set of pinch assembly comprises an upper pinch roll 8 and a lower pinch roll 9, and two ends of the upper pinch roll 8 and the lower pinch roll 9 are respectively installed on the upright post 7 and form a rotating fit with the upright post 7. The cloth is positioned between the upper clamping roller 8 and the lower clamping roller 9, the uniform speed stable conveying of the cloth is realized through the synchronous rotation of the upper clamping roller 8 and the lower clamping roller 9, for this reason, one end of the upper clamping roller 8 and one end of the lower clamping roller 9 are respectively provided with a first gear 10 and a second gear 11, and the first gear 10 and the second gear 11 are meshed with each other. Any rotation of the upper clamping roller 8 and the lower clamping roller 9 can drive the rest to synchronously rotate. As for how to realize the synchronous rotation between the two groups of clamping and conveying components, the invention adopts the mode that one ends of the two upper clamping rollers 8 far away from the first gear 10 are respectively provided with a first synchronous wheel 12 and a second synchronous wheel 13, and the first synchronous wheel 12 and the second synchronous wheel 13 are in transmission connection through a synchronous belt 14. Through the design, any one of the four clamping rollers of the two groups of clamping and conveying assemblies is connected with the clamping and conveying driving assembly, so that the four clamping rollers can be driven to synchronously rotate at a constant speed.

During use, the cloth roll 6 is placed on the roll support mechanism 2 and is kept in a freely rotatable state. Because the upper clamping roller 8 and the lower clamping roller 9 of the conveying mechanism 3 are in transmission connection through the first gear 10 and the second gear 11, the upper clamping roller 8 can drive the lower clamping roller 9 to synchronously rotate in the rotating process. In order to further improve the stability of the transmission between the first gear 10 and the second gear 11, the first gear 10 and the second gear 11 are preferably both helical gears. Meanwhile, the two upper nip rollers 8 are in transmission connection through a first synchronous wheel 12, a second synchronous wheel 13 and a synchronous belt 14. Therefore, when the pinch driving assembly drives the upper pinch roll 8 positioned above to rotate, the pinch driving assembly can drive the upper pinch roll 8 positioned below to synchronously rotate, and further synchronous and stable conveying of double-layer cloth is achieved. Compared with the traditional mode, the conveying mechanism 3 has the advantages that the implementation logic of synchronous conveying is simplified, the circuit fault risk caused by excessive electric appliance parts is reduced, the control is more accurate, and the equipment cost is lower.

The pinch driving component has more specific structures, for example, the pinch driving component can be a common motor in transmission connection with the pinch roller, and in order to realize the adjustment of the conveying speed, a speed regulating motor with adjustable rotating speed can also be adopted. As shown in fig. 2, it is also simpler to adopt a manner that the pinch drive assembly includes a gearbox 15 and a drive motor 16, a motive power is provided by the drive motor 16, and the rotation speed is adjusted by the gearbox 15, and the gearbox 15 preferably adopts a gearbox 15 with a stepless speed change function, so as to meet wider speed change requirements. The specific installation mode is that a first fixing plate 17 is arranged on the outer surface of the upright post 7 corresponding to one end of the upper clamping roller 8 positioned above, and a second fixing plate 18 is arranged on the inner surface of the upright post. The driving motor 16 is fixed on the second fixing plate 18, and the gearbox 15 is fixed on the first fixing plate 17. The power output end of the driving motor 16 is connected with the power input end of the gearbox 15, and the power output end of the gearbox 15 is connected with the upper clamping roller 8 positioned above.

In order to eliminate the electrostatic influence, the conveying mechanism 3 of the invention can be further improved on the basis that certain friction is generated between the cloth of the cloth roll 6 and each clamping roller, each conveying roller and the like in the unwinding, clamping and conveying processes, and the electrostatic is easy to influence the subsequent processes, as shown in fig. 1, an anion blower 19 for eliminating the electrostatic on the cloth is further arranged behind the clamping and conveying assembly, the anion blower 19 is fixedly arranged on the upright post 7, and the anion blower 19 is positioned between the upper cloth and the lower cloth. The air outlet of the negative ion blower 19 is Y-shaped, and two Y-shaped branches respectively face the two pieces of cloth. The air that anion hair-dryer 19 blew out blows the surface of cloth through the air outlet that Y was proper motion to carry on the neutralization to the static that carries on the cloth, and then the static situation of improvement cloth that can be very big, simultaneously owing to adopt the mode of non-contact static electricity removal, compare with the tradition through the mode of ground connection conducting rod with cloth contact, arrange more flexibility, and avoided causing the risk of damage to the cloth surface.

In addition, in the processes of rolling, leveling, storing and transporting, certain impurities inevitably exist on the surface of the cloth, such as: cotton balls, lint, dust, etc. In order to prevent the impurities from influencing the normal operation of subsequent process equipment, the invention also has the performance of cleaning the impurities on the surface of the cloth, and as shown in figures 1, 3 and 4, an impurity cleaning mechanism is also arranged on the base 1 between the cloth roll supporting mechanism 2 and the conveying mechanism 3.

As shown in fig. 3 and 4, the impurity cleaning mechanism includes a box-shaped housing 20 for cloth to pass through, and the housing 20 is mounted on the base 1 through a support frame 21. The width of the housing 20 is preferably not less than the width of a standard piece of cloth, and the height is preferably sufficient for the installation of the internal cleaning roller 22. The inside of shell 20 is provided with the hollow cleaning roller 22 that extends along shell 20 width direction, the both ends of cleaning roller 22 are installed on the curb plate of shell 20 and constitute normal running fit with the curb plate. Evenly be provided with a plurality of dust absorption holes 23 on the lateral wall of cleaning roller 22, generally dust absorption hole 23 is circular, certainly also can be oval, shape such as bar, as long as can satisfy the absorption of impurity can, the one end of cleaning roller 22 with be used for taking out arrange the dust exhausting fan intercommunication of cleaning roller 22 internal gas, when dust exhausting fan and cleaning roller 22 directly communicate, rotate not to cause the influence to the pipeline in order to guarantee cleaning roller 22, still be provided with rotary joint at cleaning roller 22's tip usually. As shown in fig. 4, the two cleaning rollers 22 are arranged in a row, and the two cleaning rollers 22 in the row are arranged in tandem, and the cloth is S-shaped to bypass the two cleaning rollers 22.

The dust removal fan works to generate negative pressure inside the cleaning roller 22; cloth is adsorbed on cleaning roller 22, on the one hand can be strickleed off the fold on the cloth, impurity is scraped off through the contact of cleaning roller 22 with cloth, and on the other hand impurity such as dust, cotton ball on the cloth can get into the cleaning roller through dust absorption hole 23 again, finally is siphoned away through dust exhausting fan. Compared with the traditional impurity cleaning mode, the impurity cleaning mechanism has the advantages that the cloth is directly contacted with the cleaning roller 22, the impurity suction effect can be ensured, the cleaning roller 22 can rotate, the normal conveying of the cloth is not influenced, meanwhile, the suction mode replaces the air blowing mode, the effect of purifying the workshop environment can be achieved, and the installation cost of equipment such as a dust hood and the like is saved.

In addition, in order to more efficiently and uniformly treat the sucked impurities, the present invention may be further preferably configured such that, as shown in fig. 3, a dust collection chamber 24 is provided on an outer surface of one side plate of the housing 20, and a dust collection drawer 25 is provided inside the dust collection chamber 24. The dust collection drawer 25 is inserted into the dust collection chamber 24 from the bottom up and locked with the dust collection chamber 24 by a hasp. The dust collection drawer 25 can be quickly removed from the dust collection chamber 24 for cleaning, while the dust collection drawer 25 can also be quickly installed in place.

A suction pipe 26 is arranged on one side of the dust collection cavity 24 far away from the shell 20, the suction pipe 26 is communicated with an air inlet end of the dust removal fan, and the flow paths of impurities and air flow are as follows in sequence: cloth, a dust suction hole 23, a cleaning roller 22, a dust collection drawer 25 and a suction pipe 26. In order to stably and efficiently intercept impurities in the dust collection drawer 25, a filter screen 27 is arranged on one side surface of the dust collection drawer 25 close to the suction pipe 26, the filter screen 27 can be replaced by filter cloth, as long as the same intercepting and filtering effects can be achieved, a vertical abdicating hole 28 extending to the upper edge of the dust collection drawer 25 is formed in the other side surface of the dust collection drawer 25, so that the end of the cleaning roller 22 can be inserted, and the end of the cleaning roller 22 penetrates through the abdicating hole 28 and extends into the dust collection drawer 25.

The cleaning rollers 22 of the impurity cleaning mechanism can be arranged in one row, which is suitable for the unwinding of single cloth, of course, the cleaning mechanism can also be arranged in two rows, namely, two rows of cleaning rollers 22 are arranged in the shell 20, and the two rows of cleaning rollers 22 are arranged up and down, which is suitable for the synchronous unwinding of two layers of cloth. The cloth passes through the upper part of the front side cleaning roller 22 and the lower part of the rear side cleaning roller 22 and bypasses the cleaning roller 22 in an S shape, and roller grooves 29 with U-shaped sections are arranged below the cleaning roller 22 on the front side and above the cleaning roller 22 on the rear side. The height of the roller groove 29 is not more than 3/4 of the cleaning roller 22, and the cleaning roller 22 is arranged in the roller groove 29. The design of the U-shaped of roller slot 29 can make the whole suction direction of cleaning roller 22 towards cloth, improves cleaning roller 22 and to the suction performance of impurity, can scrape down and carry out certain collection to the impurity that cleaning roller 22 was not siphoned away simultaneously, of course, roller slot 29 preferably adopts the detachable mode to be convenient for clear up.

For the high-speed cloth processing production line, the stability of the cloth roll 6 in the unwinding process is high due to the high conveying speed of the cloth, namely the cloth roll 6 does not vibrate or jump, so that the normal work of subsequent process equipment is greatly influenced, and the conventional unwinding cylinder of the carrier roller matched with the compression roller cannot meet the requirement. A further great improvement of the invention therefore consists in optimizing the support properties of the unwinding reel 5.

Specifically, as shown in fig. 5-9, the unwinding roll 5 includes a transversely arranged roll body and an encircling component disposed in the roll body, as shown in fig. 5, a leading-out opening 30 is disposed at a lower portion of one side of the roll body, the cloth is led out from the leading-out opening 30, and of course, in order to improve the stability and smoothness of the cloth leading-out, a cloth-out guide roller 54 is disposed at the leading-out opening 30.

The encircling assembly is composed of at least three ring supporting rollers 31 extending along the length direction of the cylinder body, as shown in fig. 7-9, the number of the ring supporting rollers 31 is 4, but may be more. As shown in fig. 5 and 6, the feeding top door 43 is hinged to the upper portion of the cylinder, in this way of feeding upwards, the cloth roll 6 needs to be placed into the cylinder through a gap between the feeding top door 43 and the ring carrier roller 31 after being opened, so the number of the ring carrier rollers 31 is not too large, and usually three ring carrier rollers are provided, so that the cloth roll 6 can be clamped, and a mounting area of the cloth roll 6 is formed between the ring carrier rollers 31. Two ends of the ring carrier roller 31 are respectively provided with a swing rod 32, one end of the ring carrier roller 31 is installed on one end of the swing rod 32 and forms a rotating fit with the swing rod 32, and the other end of the swing rod 32 is hinged in an installation hole 33 on the side wall of the cylinder body through a hinge shaft. Through the swinging of the swing rod 32, the invention can drive the ring carrier roller 31 to swing in an arc shape around the hinge shaft, thereby realizing the surrounding clamping of the cloth roll 6.

Of course, the unwinding barrel 5 is further provided with a clamping driving assembly for driving the swing rod 32 corresponding to each ring carrier roller 31 to swing so as to drive each ring carrier roller 31 to clamp and clamp on the cloth roll 6. The clamping and holding driving assembly has more specific structures, for example: the clamping driving component can be a cylinder, an electric push rod and the like for driving the swing rod 32 to swing, but the layout is complex and the equipment cost is high. Therefore, the clamping and holding driving component can be a spring arranged between the middle section of the swing rod 32 and the inner wall of the cylinder, and the spring is used for driving the swing rod 32 to rotate so as to realize clamping and holding.

As shown in fig. 7, a better design scheme of the clamping driving assembly may further be that a plurality of arc-shaped guide holes 34 are uniformly arranged on two end faces of the cylinder body corresponding to the number of the ring rollers 31, and the guide holes 34 are matched with the swing tracks of the ring rollers 31. The ends of the two ends of the ring carrier roller 31 correspondingly penetrate through the guide holes 34 and form sliding fit with the guide holes 34. Embrace drive assembly and include connector 35 and elasticity piece that resets, each the both ends of ring bearing roller 31 all are provided with connector 35, through elasticity piece interconnect that resets between the connector 35 of two adjacent ring bearing rollers 31. Thus, when three ring idlers 31 are provided, the connecting head 35 and the elastic restoring member together form a regular triangular structure, and when four ring idlers 31 are provided, the connecting head 35 and the elastic restoring member together form a square structure as shown in fig. 7. The elastic restoring member can be in the form of an elastic rope, an elastic telescopic pipe and the like, but the simplest scheme is that the elastic restoring member is a spiral spring 36. By adopting the design, the clamping and holding driving assembly is integrally positioned outside the cylinder body, so that the clamping and holding driving assembly is more convenient to overhaul and replace, and simultaneously lays a foundation for the adjustment of elasticity.

In the use process of the unwinding roll, the cloth roll 6 is placed in the installation area between the ring carrier rollers 31, as shown in the dotted line shaded parts in fig. 8 and 9, each ring carrier roller 31 can always keep stable contact with the cloth roll 6 under the driving of the clamping driving assembly, and as the traditional compression roller positioning mode is replaced by the encircling mode, the cloth roll 6 basically has no jump in the unwinding process, and the small number of ring carrier rollers 31 can adapt to the change of the cloth roll 6 from large to small in the whole unwinding process, such as: when the diameter of the cloth roll 6 is reduced, the coil spring 36 can drive the connectors 35 on the ring supporting rollers 31 to close, so that the ring supporting rollers 31 can slide along the guide holes 34 to close, real-time clamping of the cloth roll 6 is realized, and jumping is prevented. With the improvement of the stability of the cloth roll 6, the influence of the jumping of the cloth roll 6 on the work of the conveying mechanism is reduced, so the invention is particularly suitable for the unwinding requirement of a high-speed cloth processing production line and lays a solid foundation for improving the production efficiency.

Since the angle of the connecting head 35 is changed to a certain degree compared with the spiral spring 36 during the process of following the movement of the ring carrier roller 31 along the guide hole 34, in consideration of the stability of the force applied to the spiral spring 36, it is preferable that the connecting joint of the connecting head 35 and the spiral spring 36 is in a rotatable form, which can follow the rotation, so as to ensure that the spiral spring 36 is in a straight optimal elastic retraction state. For this purpose, as shown in fig. 10, the end of the ring roller 31 is provided with an external thread and is adapted with a nut 37, and a limiting disc 38 is arranged on the ring roller 31 near the nut 37. The connector 35 is sleeved on the ring carrier roller 31 between the nut 37 of the ring carrier roller 31 and the limiting disc 38, and is locked by the nut 37. The periphery of connector 35 is provided with the annular rotation groove of round, install swivel becket 39 in the rotation groove, coil spring 36's one end is connected with swivel becket 39. Through the design of the rotating ring 39, the working condition of the spiral spring 36 can be effectively improved, and the spiral spring 36 is more stable in the retraction process. Meanwhile, the mode is more convenient for processing and assembling each part.

For the cloth roll 6 with a large diameter size, in order to ensure that the ring carrier roller 31 has good clamping performance on the cloth roll 6 in the whole unwinding stage, the maximum stretching limit of the coil spring 36 must meet the requirement of clamping the maximum size of the cloth roll 6, and therefore, when the cloth roll 6 is in the maximum size state, the coil spring 36 may generate an excessive resilience force, so that the cloth roll 6 is clamped too tightly, and the unwinding smoothness is further affected. For this reason, the present invention should also have a function of adjusting the contraction elastic force of the coil spring 36.

As shown in fig. 7 and 11, the hydraulic pressure self-adaptive adjusting device further includes a pressure self-adaptive adjusting assembly, the pressure self-adaptive adjusting assembly includes a hydraulic pressure adjusting cylinder 40, two sliding pistons 41 are disposed in the hydraulic pressure adjusting cylinder 40 and are matched with the hydraulic pressure adjusting cylinder 40, an outer surface of the sliding piston 41 is connected to the other end of the coil spring 36, and in order to prevent the movable piston 41 from being out of position, a limiting component for limiting a limit position of the sliding piston 41 in the hydraulic pressure adjusting cylinder may be disposed in the hydraulic pressure adjusting cylinder 40. And a pumping and discharging pipeline 42 is further arranged on the side wall of the middle section of the hydraulic adjusting cylinder 40, and the pumping and discharging pipeline 42 is communicated with a hydraulic pump. The pressure self-adaptive adjusting assembly further comprises a pressure sensor which is arranged on the ring carrier roller 31 and used for detecting the pressure between the ring carrier roller 31 and the cloth roll 6, and the pressure sensor and the hydraulic pump are both electrically connected with the controller. When the pressure sensor is used, the pressure sensor detects the pressure value of the ring carrier roller 31 to the cloth roll 6 in real time, when the pressure value is too large, the hydraulic pump injects hydraulic oil into the hydraulic adjusting cylinder 40 through the pumping and discharging pipeline 42, the sliding piston 41 slides towards the two ends, and the elasticity of the spiral spring 36 is reduced. On the contrary, the hydraulic oil in the hydraulic pressure adjusting cylinder 40 is pumped out by the hydraulic pump, and the sliding piston 41 is gathered toward the center, thereby increasing the elastic force of the coil spring 36.

Considering that the ring rollers 31 need to be opened when the cloth roll 6 is installed, the invention preferably makes the end of the swing link 32 far away from the ring roller 31 be provided with a hook head 44, and the hook head 44 extends out of the cylinder body through the installation hole 33. By applying acting force to the hook head 44, the swing rod 32 is driven to rotate, and the ring carrier roller 31 is driven to open. The specific driving mode is that, as shown in fig. 5 and 8, the invention further comprises an opening driving assembly, wherein the opening driving assembly comprises adjusting rings 45 sleeved on the circumferential surfaces of the two ends of the cylinder, and the adjusting rings 45 are mounted on the cylinder through bearings 46. The inner surface of the adjusting ring 45 is provided with a toothed block 47 which is matched with the hook head 44 on the swing rod 32, and the outer surface of the adjusting ring 45 is provided with a toothed ring 48. Open drive assembly still including setting up the pivot 49 that extends along barrel length direction in the barrel bottom, the middle section and the fixed open motor 50 transmission that sets up in the barrel bottom of pivot 49 are connected, and the both ends of pivot 49 are fixed and are provided with adjusting gear 51, adjusting gear 51 meshes mutually with the ring gear 48 on the adjustable ring 45. During operation, the motor 50 is opened to drive the rotating shaft 49 to rotate, the rotating shaft 49 drives the adjusting gear 51, the adjusting gear 51 drives the toothed ring 48, the toothed ring 48 drives the adjusting ring 45, and the toothed block 47 on the inner surface of the adjusting ring 45 pushes the hook head 44 to drive the swing rod 32 in the rotating process. In this way, the ring carrier roller 31 of the invention is more convenient to open, thereby facilitating the installation and replacement of the cloth roll 6.

In addition, the unwinding barrel 5 of the invention should keep the limit control of the two ends of the cloth roll 6, so that the cloth roll moves in the axial direction of the unwinding barrel 5, and therefore, the center of the end surfaces of the two ends of the barrel of the invention is also provided with an adjusting screw rod 52, and the adjusting screw rod 52 extends along the axial direction of the barrel and forms a threaded fit with the end surface of the barrel. The inner end of the adjusting screw rod 52 is provided with an end disc, and the outer end is provided with an adjusting hand wheel 53. The adjusting screw 52 can be rotated through the adjusting hand wheel 53, and then the end disc is driven to change the position through the expansion of the adjusting screw 52 in the cylinder, the end disc is utilized to limit the end part of the cloth roll 6 to a certain degree, of course, in order to further reduce the friction force between the end disc and the end part of the cloth roll 6, the end disc can adopt the form of a rotating disc, or the end disc is connected with the adjusting screw 52 through a rotary joint.

Claims

1. A double-layer synchronous unwinding device comprises a base (1), wherein a cloth roll supporting mechanism (2) and a conveying mechanism (3) are sequentially arranged on the base (1) along the cloth conveying direction;

the method is characterized in that: the cloth roll supporting mechanism (2) comprises a pair of mounting side plates (4) arranged on two sides of the front end of the base (1), two unwinding drums (5) are arranged between the mounting side plates (4), and a cloth roll (6) is respectively arranged on each of the two unwinding drums (5);

the conveying mechanism (3) comprises a pair of stand columns (7) arranged on two sides of the rear end of the base (1), two groups of clamping and conveying assemblies arranged between the upper ends of the stand columns (7), and clamping and conveying driving assemblies for driving the two groups of clamping and conveying assemblies to synchronously act; the two groups of pinch components are distributed up and down, and the cloth corresponding to the two cloth rolls (6) respectively passes through the two groups of pinch components;

the pinch assembly comprises an upper pinch roller (8) and a lower pinch roller (9), two ends of the upper pinch roller (8) and two ends of the lower pinch roller (9) are respectively arranged on the upright post (7) and are in running fit with the upright post (7); one end of each of the upper clamping roller (8) and the lower clamping roller (9) is provided with a first gear (10) and a second gear (11), and the first gear (10) and the second gear (11) are meshed with each other; one ends, far away from the first gear (10), of the two upper clamping rollers (8) are respectively provided with a first synchronizing wheel (12) and a second synchronizing wheel (13), and the first synchronizing wheel (12) and the second synchronizing wheel (13) are in transmission connection through a synchronizing belt (14); the cloth is positioned between an upper nip roller (8) and a lower nip roller (9).

2. The double-deck synchronous unwinding apparatus of claim 1, wherein: the pinch drive assembly comprises a gearbox (15) and a drive motor (16), a first fixing plate (17) is arranged on the outer surface of the upright post (7) corresponding to one end of the upper pinch roll (8) above the pinch roll, and a second fixing plate (18) is arranged on the inner surface of the upright post; the driving motor (16) is fixed on the second fixing plate (18), and the gearbox (15) is fixed on the first fixing plate (17); the power output end of the driving motor (16) is connected with the power input end of the gearbox (15), and the power output end of the gearbox (15) is connected with the upper clamping roller (8) positioned above.

3. The double-deck synchronous unwinding apparatus of claim 2, wherein: the first gear (10) and the second gear (11) are helical gears.

4. The double-deck synchronous unwinding apparatus of claim 3, wherein: an anion blower (19) for eliminating static electricity on the cloth is further arranged behind the clamping and conveying assembly, the anion blower (19) is fixedly arranged on the upright post (7), and the anion blower (19) is positioned between the upper cloth and the lower cloth; the air outlet of the negative ion blower (19) is Y-shaped, and two Y-shaped branches respectively face the two pieces of cloth.

5. The double-deck synchronous unwinding apparatus of claim 4, wherein: the unwinding drum (5) comprises a drum body arranged transversely and an encircling assembly arranged in the drum body, and the lower part of one side of the drum body is provided with a guide outlet (30);

the encircling assembly at least comprises three ring carrier rollers (31) extending along the length direction of the cylinder body, and an installation area of a cloth roll (6) is formed between the ring carrier rollers (31); two ends of the ring carrier roller (31) are respectively provided with a swing rod (32), one end of the ring carrier roller (31) is installed on one end of the swing rod (32) and is in running fit with the swing rod (32), and the other end of the swing rod (32) is hinged in an installation hole (33) in the side wall of the cylinder body through a hinge shaft;

the unwinding drum (5) is further provided with a swing rod (32) used for driving each ring carrier roller (31) to swing so as to drive each ring carrier roller (31) to clamp and embrace a clamping and embracing driving assembly on the cloth roll (6).

6. The double-deck synchronous unwinding apparatus of claim 5, wherein: a plurality of arc-shaped guide holes (34) are uniformly formed in the two end faces of the cylinder body corresponding to the number of the ring carrier rollers (31), and the guide holes (34) are matched with the swinging track of the ring carrier rollers (31); the ends of the two ends of the ring carrier roller (31) correspondingly penetrate through the guide holes (34) and form sliding fit with the guide holes (34);

embrace drive assembly and include connector (35) and elasticity piece that resets, each the both ends of ring bearing roller (31) all are provided with connector (35), through elasticity piece interconnect that resets between connector (35) of two adjacent ring bearing rollers (31).

7. The double-deck synchronous unwind apparatus of claim 6 wherein: the elastic reset piece is a spiral spring (36).

8. The double-deck synchronous unwind apparatus of claim 7 wherein: the end part of the ring carrier roller (31) is provided with an external thread and is matched with a nut (37), and a limiting disc (38) is arranged on the ring carrier roller (31) close to the nut (37); the connector (35) is sleeved on the ring carrier roller (31) between the nut (37) of the ring carrier roller (31) and the limiting disc (38) and is locked by the nut (37); the week side of connector (35) is provided with the annular groove that rotates of round, install swivel becket (39) in the groove that rotates, the one end and the swivel becket (39) of coil spring (36) are connected.

9. The double-deck synchronous unwind apparatus of claim 8 wherein: the pressure self-adaptive adjusting device comprises a hydraulic adjusting cylinder (40), two sliding pistons (41) matched with the hydraulic adjusting cylinder (40) are arranged in the hydraulic adjusting cylinder (40), and the outer surface of each sliding piston (41) is connected with the other end of each spiral spring (36); a pumping and discharging pipeline (42) is further arranged on the side wall of the middle section of the hydraulic adjusting cylinder (40), and the pumping and discharging pipeline (42) is communicated with a hydraulic pump; the pressure self-adaptive adjusting assembly further comprises a pressure sensor which is arranged on the ring carrier roller (31) and used for detecting the pressure between the ring carrier roller (31) and the cloth roll (6), and the pressure sensor and the hydraulic pump are both electrically connected with the controller.

10. The double-deck synchronous unwind apparatus of claim 9 wherein: the end part of the swing rod (32) far away from one end of the ring carrier roller (31) is provided with a hook head (44), and the hook head (44) penetrates through the mounting hole (33) and extends out of the cylinder body; the expansion device further comprises an expansion driving assembly, the expansion driving assembly comprises adjusting rings (45) sleeved on the circumferential surfaces of the two ends of the cylinder body, and the adjusting rings (45) are installed on the cylinder body through bearings (46); the inner surface of the adjusting ring (45) is provided with a toothed block (47) matched with the hook head (44) on the swing rod (32), and the outer surface of the adjusting ring (45) is provided with a toothed ring (48); open drive assembly still including setting up pivot (49) that extend along barrel length direction in the barrel bottom, the middle section and the fixed motor (50) transmission that opens that sets up in the barrel bottom of pivot (49) are connected, and the both ends of pivot (49) are fixed and are provided with adjusting gear (51), adjusting gear (51) mesh mutually with ring gear (48) on the adjustable ring (45).