CN217296589U - Automatic winding and cutting device for winding machine - Google Patents

Abstract

The application discloses a cutting device rolls up in automation for rolling machine includes: the automatic cutting device comprises a supporting mechanism, an air cylinder compression roller mechanism, a spring compression roller mechanism, a rotating mechanism and automatic cutting equipment, wherein the supporting mechanism comprises a supporting plate and a driving component for driving the supporting plate to be close to or far away from a roll-over stand of the winding machine, the air cylinder compression roller mechanism comprises a first compression roller and a compression roller air cylinder for tightly pressing the first compression roller on a winding shaft, the spring compression roller mechanism comprises a second compression roller and a mounting seat for tightly pressing the second compression roller on the winding shaft, the rotating mechanism comprises a first rotating component with a rotating gear and a first driving motor for driving the rotating gear to rotate, the rotating gear is connected with the mounting seat, the rotating gear is provided with a limiting groove for accommodating part of the winding shaft, and the automatic cutting equipment comprises a cutter for cutting sheets and a second driving component for driving the cutter; the cylinder compression roller mechanism, the spring compression roller mechanism and the rotating mechanism are matched, so that the sheet is automatically rolled up quickly, the structure is simple, the production cost is reduced, and the production efficiency is further improved.

Description

Automatic winding and cutting device for winding machine

Technical Field

The application relates to PETG decorates piece production facility technical field, especially relates to an automatic cutting device that rolls up for rolling machine.

Background

The rear side of the current production line for producing the PETG decorative sheet is provided with a winding machine for winding, the winding machine winds the sheet on an air expansion shaft and then winds the sheet, and after the sheet is wound to a moving length, the air expansion shaft needs to be replaced for new winding, so that the sheet is cut and wound on the new air expansion shaft; automatic roll-up cutting devices are more efficient than manual operations, but such automatic roll-up cutting devices are complex in structure and high in production cost.

Disclosure of Invention

The purpose of this application is to solve complicated, the with high costs problem of structure among the prior art.

In order to achieve the purpose, the technical scheme is as follows: an automatic coil-up cutting device for a winding machine, the winding machine comprising a roll-over stand provided with a winding shaft, the automatic coil-up cutting device comprising:

the supporting mechanism comprises a pair of oppositely arranged supporting plates and a first driving assembly for driving the pair of supporting plates and switching between a working position close to the overturning frame and a static position far away from the overturning frame, and the winding shaft extends along the transverse direction;

the cylinder compression roller mechanism comprises a first compression roller parallel to the winding shaft and a pair of compression roller cylinders respectively arranged on the pair of supporting plates, and the pair of compression roller cylinders are connected with the first compression roller to drive the first compression roller to be pressed on the winding shaft;

the spring compression roller mechanism comprises a second compression roller parallel to the winding shaft and a pair of mounting seats respectively arranged at two end parts of the second compression roller, and a spring adjusting assembly for tightly pressing the second compression roller on the winding shaft is arranged in each mounting seat;

the spring compression roller mechanism is fixedly connected with the rotating gear so as to enable the second compression roller to rotate coaxially with the rotating gear, the rotating gear is provided with a limiting groove for accommodating at least part of the winding shaft, and the limiting groove is provided with an outward opening;

and the automatic cutting equipment is arranged between the pair of supporting plates and comprises a cutter and a second driving component which is connected with the cutter to drive the cutter to move back and forth along the transverse direction.

In the above technical solution, it is further preferable that the mounting base is provided with a sliding through hole for accommodating the spring adjusting member, the spring adjusting assembly includes a spring which can move back and forth in the sliding through hole and an adjusting nut which is connected with the sliding through hole in a matching manner, and the adjusting nut is connected to an end portion of the mounting base away from the second press roller.

In the above technical solution, it is further preferable that the spring roll mechanism further includes a pair of sliding shafts connected to two end portions of the second roll, respectively, an axial line of the pair of sliding shafts is perpendicular to an axial line of the second roll, each sliding shaft is inserted into the corresponding sliding through hole and is sleeved with the corresponding spring, and the spring is located between the sliding shaft and the adjusting nut.

In the above technical solution, it is further preferable that the first rotating assembly includes an inner copper sleeve and an outer copper sleeve connected to the support plate, and the rotating gear is rotatably connected to the inner copper sleeve and the outer copper sleeve around its own axis.

In the above technical solution, it is further preferable that the rotating mechanism further includes a second rotating component disposed on the other supporting plate, the second rotating component includes a rotating member capable of rotating around an axis of the rotating gear, and the rotating member is fixedly connected to the spring pressing roller mechanism.

In the above technical solution, it is further preferable that the automatic cutting and reeling device includes a PLC controller, the first driving motor is a servo motor, and the servo motor is in signal connection with the PLC controller.

In the above technical solution, it is further preferable that the first driving assembly includes a pair of driving cylinders respectively connected to the pair of support plates and a pair of moving guide rails extending in the front-rear direction, each of the driving cylinders is connected to the corresponding support plate, and the pair of support plates are respectively slidably disposed on the pair of moving guide rails.

In the above technical solution, it is further preferable that the second driving assembly includes a linear guide rail extending along the transverse direction, a plurality of tensioning wheels distributed at intervals along the linear guide rail, and a second driving motor connected to the cutting knife through a driving belt, and the driving belt is tensioned between the plurality of tensioning wheels and the cutting knife to drive the cutting knife to move along the linear guide rail.

In the above technical solution, it is further preferable that the second driving assembly further includes a pair of limit switches, and the pair of limit switches are respectively provided at both end portions of the linear guide.

Compared with the prior art, the application has the following beneficial effects:

according to the automatic sheet material changing device, the sheet material between the fully-rolled winding shaft and the material storage device is quickly transferred to the winding shaft of the empty shaft through the air cylinder compression roller mechanism and the spring compression roller mechanism, the automatic cutting equipment quickly cuts off the sheet material and then resets the sheet material to wait for the next roll change, and the automation degree and the production efficiency of a production line are improved; set up spring compression roller mechanism on rotary mechanism's rotating gear, make rotating gear drive the second compression roller and rotate around the rolling axle under servo motor's drive, pivoted second compression roller compresses tightly on the rolling axle all the time under the effect of spring pressure subassembly, makes the sheet automatic upward roll fast, simple structure, reduction in production cost and further improve production efficiency.

Drawings

Fig. 1 is a schematic perspective view of an automatic winding-up cutting device for a winding machine according to an embodiment of the present application;

FIG. 2 is a front view of the automatic roll-up cutting apparatus of FIG. 1;

FIG. 3 is an enlarged partial schematic view at D of FIG. 2;

FIG. 4 is a top view of the automatic roll-up cutting apparatus of FIG. 1;

FIG. 5 is a right side view of the automatic roll-up cutting apparatus of FIG. 1;

FIG. 6 is a left side view of the automatic roll-up cutting apparatus of FIG. 1;

FIG. 7 is a perspective view of the first rotating assembly of FIG. 4;

FIG. 8 is a perspective view of the first rotating assembly of FIG. 4 from another perspective;

FIG. 9 is a schematic view of the first rotating assembly of FIG. 8;

FIG. 10 is a right side view of the second rotary assembly of FIG. 4;

FIG. 11 is a schematic perspective view of the cylinder-platen mechanism of FIG. 1;

FIG. 12 is a left side view of the spring roller mechanism of FIG. 1;

FIG. 13 is a cross-sectional view taken along line A-A of FIG. 12;

FIG. 14 is an enlarged partial view at B of FIG. 13;

FIG. 15 is a schematic perspective view of the automatic cutting apparatus of FIG. 1;

fig. 16 is a schematic perspective view of the automatic winding and cutting device of fig. 1 disposed on a winding machine;

FIG. 17 is a schematic illustration of the automatic lap-cutter of FIG. 16 in a static position during normal winding;

FIG. 18 is a schematic view of the automatic roll-up cutting apparatus of FIG. 16 in an operating position with the spring-loaded roller mechanism in a first position;

FIG. 19 is a schematic view of the automatic roll-up cutting apparatus of FIG. 16 in an operating position and a spring-loaded roller mechanism in a second position;

fig. 20 is a partially enlarged schematic view of a portion at C in fig. 19.

Wherein: 100. an automatic roll-up cutting device; 1. a support mechanism; 11. a support plate; 110. accommodating grooves; 12. a first drive assembly; 121. a driving cylinder; 122. a moving guide rail; 2. a cylinder compression roller mechanism; 21. a first press roll; 22. a compression roller cylinder; 3. a spring compression roller mechanism; 31. a second press roll; 32. a mounting seat; 320. a sliding through hole; 33. a spring adjustment assembly; 331. a spring; 332. adjusting the nut; 34. a sliding shaft; 341. a first part; 342. a second section; 343. a limiting surface; 4. a rotation mechanism; 41. a first rotating assembly; 411. a rotating gear; 4110. connecting grooves; 4111. a gear portion; 4112. a connecting portion; 412. an inner copper sleeve; 413. an outer copper sleeve; 4131. a boss portion; 414. a limiting groove; 42. a second rotating assembly; 421. a rotating member; 422. a limiting groove; 43. a first drive motor; 44. a transmission gear; 5. an automatic cutting device; 51. a cutter; 511. a tool holder; 512. a blade; 52. a second drive assembly; 521. a linear guide rail; 522. a tension wheel; 523. a conveyor belt; 524. a second drive motor; 525. a limit switch; 200. a material storage device; 300. a roll-over stand; 8. a sheet material; 9. and (7) winding the shaft.

Detailed Description

To explain the technical content, the structural features, the achieved objects and the functions of the application in detail, the technical solutions in the embodiments of the application will be described below with reference to the drawings in the embodiments of the application, and it is obvious that the described embodiments are only a part of the embodiments of the application, and not all embodiments. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the present application, "up", "down", "front", "back", "left", "right" are in accordance with up, down, front, back, left and right as shown in fig. 1, and in addition, "transverse" direction is left-right direction, and "longitudinal" direction is front-back direction.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate.

The embodiment of the application provides an automatic winding-up cutting device for a winding machine, as shown in fig. 16, the winding machine is provided with a storage device 200 and a turnover frame 300 provided with a winding shaft 9, and the automatic winding-up cutting device 100 can be arranged between the storage device 200 and the turnover frame 300 in a back-and-forth moving mode. The automatic reeling and cutting device is mainly used for a production line of PETG decorative sheets.

As shown in fig. 16 and 17, the magazine 200 introduces the sheets 8 into the roll-over stand 300, and the rolls the sheets 8 from the roll-over stand 300. Two parallel winding shafts 9 are arranged on the roll-over stand 300 for roll changing and winding, and the winding shafts 9 extend in the left-right direction. Two winding shafts 9 are rotatable on the roll-over stand 300 about their own axes and about a transversely extending centre line X ₄ And (4) rotating.

As shown in fig. 1, 2, and 4, the automatic roll-up cutting apparatus 100 includes a support mechanism 1, a cylinder roller mechanism 2 and a rotation mechanism 4 provided on the support mechanism 1, a spring roller mechanism 3 provided on the rotation mechanism 4, and an automatic cutting device 5 for cutting off a sheet.

The supporting mechanism 1 comprises a pair of supporting plates 11 arranged oppositely left and right and a first driving component 12 for driving the pair of supporting plates 11 to switch between a working position close to the roll-over stand 300 and a static position far away from the roll-over stand 300, a plurality of supporting rods 13 extending transversely are further arranged between the pair of supporting plates 11, and two end parts of each supporting rod 13 are respectively connected to the pair of supporting plates 11 to increase the stability of the pair of supporting plates 11. The first driving assembly 12 includes a pair of driving cylinders 121 and a pair of moving rails 122 extending in the front-rear direction, the pair of support plates 11 are slidably disposed on the pair of moving rails 122, the cylinders of the pair of driving cylinders 121 are connected to the roll stand 300, the air rods of the pair of driving cylinders 121 are connected to the pair of support plates 11, and the pair of driving cylinders 121 drive the pair of support plates 11 to move along the extending direction of the pair of moving rails 122.

As shown in fig. 6, a receiving slot 110 with a backward opening is opened on one side of each support plate 11 facing the roll-over stand 300, and a pair of air cylinders 121 drive the pair of support plates 11 to approach the roll-over stand 300 and make at least part of the winding shaft 9 abut against the receiving slot 110.

As shown in fig. 1, 4, 5, and 11, the cylinder press roll mechanism 2 is disposed between the pair of support plates 11, the cylinder press roll mechanism 2 includes a first press roll 21 parallel to the winding shaft 9 and a pair of press roll cylinders 22, and the first press roll 21 is rotatably connected to the pair of press roll cylinders 22 about the axis. The cylinder bodies of the pair of press roller cylinders 22 are respectively fixedly disposed on the pair of support plates 11, the air rods of the pair of press roller cylinders 22 are respectively connected to both end portions of the first press roller 21, and the press roller cylinders 22 drive the first press roller 21 to move in the front-rear direction.

As shown in fig. 1 to 6, the rotating mechanism 4 includes a first rotating assembly 41 disposed on one of the support plates 11, a second rotating assembly 42 disposed on the other support plate 11, and a first driving motor 43 in transmission connection with the second rotating assembly 42, and it is understood that the first driving motor 43 is a servo motor. As shown in fig. 3, 7, 8 and 9, the first rotating groupThe member 41 comprises an inner copper sleeve 412 and an outer copper sleeve 413 connected to the corresponding support plate 11 and a rotary gear 411 arranged between the inner copper sleeve 412 and the outer copper sleeve 413, the rotary gear 411 being slidably connected to the inner copper sleeve 412 and the outer copper sleeve 413, respectively. The rotating gear 411 includes a connecting portion 4112 close to the support plate 11 and a gear portion 4111 far from the support plate 11, the gear portion 4111 and the connecting portion 4112 have a connecting groove 4110 recessed radially inwards, one end portion of the outer copper sleeve 413 is connected to the support plate 11, the other end portion far from the support plate 11 has a protruding portion 4131 protruding radially inwards, the outer copper sleeve 413, the rotating gear 411 and the inner copper sleeve 412 are coaxially disposed, the protruding portion 4131 of the outer copper sleeve 413 is inserted into the connecting groove 4110, the connecting portion 4112 of the rotating gear 411 is limited among the support plate 11, the outer copper sleeve 413 and the inner copper sleeve 412, and when the rotating gear 411 rotates, the protruding portion 4131 slides relatively in the connecting groove 4110. The supporting plate 11 is provided with a transmission gear 44 engaged with the rotating gear 411, the first driving motor 43 is in transmission connection with the transmission gear 44, the first driving motor 43 drives the transmission gear 44 to rotate around the self axial lead, and the rotating gear 411 engaged with the transmission gear 44 is driven by the transmission gear 44 to rotate around the self axial lead X between the inner copper sleeve 412 and the outer copper sleeve 413 ₁ And (4) rotating.

As shown in FIG. 10, the second rotating assembly 42 is disposed opposite to the first rotating assembly 41, and the second rotating assembly 42 includes an inner copper sleeve and an outer copper sleeve as the first rotating assembly 41 and can rotate around the axis X ₁ The rotating member 421 is rotatably arranged between the inner copper sleeve and the outer copper sleeve, the inner copper sleeve and the outer copper sleeve are both connected to the supporting plate 11, and the rotating member 421 is slidably connected with the inner copper sleeve and the outer copper sleeve.

As shown in fig. 2, 5, 6, 9 and 10, the rotating gear 411 has a limiting groove 414 with an outward opening, the rotating member 421 has a limiting groove 422 with an outward opening, the projections of the limiting groove 414 and the limiting groove 422 in the transverse direction coincide, and the projection of the limiting groove 414 and the limiting groove 422 in the transverse direction coincide with the projection of at least part of the receiving groove 110 in the transverse direction. When the winding shaft 9 abuts against the limiting grooves 414 and 422, the axis line X of the winding shaft 9 ₂ To the axis X ₁ Coincide and revolveThe rotating gear 411 and the rotating member 421 rotate around the axis X ₁ When rotating, the two end parts of the winding shaft 9 are always positioned in the limiting grooves 414 and the limiting grooves 422.

As shown in fig. 1, 2 and 12, the spring pressing roller mechanism 3 is arranged between the first rotating assembly 41 and the second rotating assembly 42, the spring pressing roller mechanism 3 comprises a second pressing roller 31 parallel to the winding shaft 9 and a pair of mounting seats 32, the pair of mounting seats 32 are respectively arranged at two end parts of the second pressing roller 31, and the second pressing roller 31 can rotate around the axis line X thereof ₃ Rotatably disposed on a pair of mounting seats 32. One of the mounting seats 32 is fixedly connected to the rotary gear 411, the other mounting seat 32 is fixedly connected to the rotary member 421, and when the rotary gear 411 is driven by the first driving motor 43, the rotary gear 411 drives the second pressing roller 31 and the rotary member 421 to rotate around the axial line X ₁ And (4) rotating. The spring pressure roller mechanism 3 has a first position at the lower side of the take-up shaft 9 and a second position at the rear side of the take-up shaft 9 under the driving of the rotating mechanism 4.

As shown in fig. 12-14, a spring adjusting assembly 33 is disposed in the mounting seat 32, and a shaft axis X of the second pressing roller 31 is disposed in the mounting seat 32 ₃ A vertical sliding through hole 320, and the spring adjusting assembly 33 is disposed in the sliding through hole 320. The spring adjusting assembly 33 includes a spring 331 slidably disposed in the sliding through hole 320 and an adjusting nut 332 engaged with the sliding through hole 320, and the adjusting nut 332 is located on a side of the mounting seat 32 away from the second pressing roller 31. The second press roll 31 has two end portions arranged with the axial line X ₃ And one end of each sliding shaft 34 is connected with the end of the second press roller 31, and the other end is inserted into the corresponding sliding through hole 320. The sliding shaft 34 includes a first portion 341 adjacent to the second pressure roller 31 and a second portion 342 adjacent to the adjusting nut 332, the first portion 341 has a diameter larger than that of the second portion 342, a spacing surface 343 is formed between the first portion 341 and the second portion 342, and the spring 331 is fitted over the second portion 342 and is confined between the adjusting nut 332 and the spacing surface 343. When the second pressing roller 31 is not pressed by an external force, the spring 331 is extended; when the second pressing roller 31 is pressed by an external force, the sliding shaft 34 slides in the direction of the adjusting nut 332 relative to the mounting seat 32 in the sliding through hole 320, the distance between the limiting surface 343 and the adjusting nut 332 decreases, and the second pressing roller is bounced offThe spring 331 is compressed and at the same time, the elastic force generated by the spring 331 presses the second pressing roller 31 against the object to be externally applied.

The automatic cutting coiling device of this application still includes the PLC controller, first driving motor 43 and PLC controller signal connection, and the first rotating assembly 41 of PLC controller control drive first driving motor 43 drive rotates spring compression roller mechanism 3 to primary importance and second place, improves the accuracy of the operation of changing a roll. The PLC controller is also in signal connection with the driving cylinder 121 and the compression roller cylinder 22 to control the automatic roll-up cutting device 100 and the movement of the first compression roller 21, so that the roll changing efficiency is improved.

As shown in fig. 1 and 15, an automatic cutting device 5 is provided on the lower side of the spring-press roller mechanism 3, and the automatic cutting device 5 includes a cutter 51 for cutting off the sheet 8 between the two take-up shafts 9 and a second drive assembly 52 that drives the cutter 51 to move back and forth in the transverse direction. The cutter 51 includes a blade holder 511 and a blade 512 provided on the blade holder 511. The second driving assembly 52 includes a linear guide 521 extending along the transverse direction, a plurality of tension rollers 522 spaced along the linear guide 521, and a second driving motor 524 connected to the tension rollers 522 through a belt 523. The tool rest 511 is slidably disposed on the linear guide 521 and connected to the belt 523, and the second driving motor 524 drives the belt 523 to drive the cutting blade 51 to move back and forth along the linear guide 521. The second driving assembly 52 further comprises a pair of limit switches 525 respectively disposed at two ends of the linear guide 521, the cutting knife 51 is configured to move in a direction opposite to the original moving direction when moving to the limit switches 525, and the pair of limit switches 525 realizes the automatic reciprocating motion of the cutting knife 51 on the linear guide 521. The second driving motor 524 and the limit switch 525 are both in signal connection with the PLC controller, and the automatic cutting device 5 completes cutting work quickly under the control of the PLC controller, thereby improving the speed and accuracy of cutting and reel changing.

As shown in fig. 17-20, the working principle of the present application is: the storing device 200 leads the sheet 8 into the roll-over stand 300, one winding shaft 9 of the roll-over stand 300 rotates to the front side for winding the sheet 8, when the sheet 8 is wound to a certain length, the roll-over stand 300 performs shaft changing work, and the winding shaft 9 of the full roll winds around the central line X ₄ From front to frontThe winding shaft 9 of the other hollow shaft rotates from side to back side and winds around the central line X ₄ The automatic roll-up cutting device 100 is driven by the driving cylinder 121 to approach the roll-over stand 300 along the moving guide rail 122 until the two end portions of the roll-up shaft 9 of the empty shaft abut against the limiting grooves 414 and 422 respectively, the second press roller 31 presses the partial sheet 8 between the full roll-up shaft 9 and the storing device 200 against the roll-up shaft 9 of the empty shaft under the elastic force of the spring 331, and the press roller cylinder 22 drives the first press roller 21 to approach the roll-up shaft 9 of the empty shaft, so that the first press roller 21 presses the partial sheet 8 between the full roll-up shaft 9 and the storing device 200 against the roll-up shaft 9 of the empty shaft. The cutter 51 of the automatic cutting device 5 is moved in the transverse direction by the second driving motor 524 to cut off the sheet 8 between the winding shaft 9 of the empty shaft and the winding shaft 9 of the full shaft, the first driving motor 43 drives the rotary gear 411 to rotate, and the second pressing roller 31 connected to the rotary gear 411 is wound around the axial line X of the winding shaft 9 of the empty shaft ₂ And rotating the automatic winding-up cutting device from the first position to the second position to wrap the starting end of the sheet 8 cut off by the cutting knife 51 on the winding shaft 9 of the hollow shaft, after the winding shaft 9 winds several circles of the sheet 8, resetting the second pressing roller 31 from the second position to the first position, driving the air cylinder 121 to drive the automatic winding-up cutting device 100 to be away from the roll-over stand 300 to wait for the next roll change, and normally winding up the roll-over stand 300.

According to the automatic coil changing device, the sheet 8 between the fully-wound winding shaft 9 and the storage device 200 is quickly transited to the winding shaft 9 of the empty shaft through the air cylinder compression roller mechanism 2 and the spring compression roller mechanism 3, the automatic cutting equipment 5 quickly cuts off the sheet 8 and then resets to wait for the next coil changing, and the automation degree and the production efficiency of a production line are improved; set up spring compression roller mechanism 3 on rotary gear 411 of rotary mechanism 4, make rotary gear 411 drive second compression roller 31 and rotate around rolling axle 9 under servo motor's drive, pivoted second compression roller 31 compresses tightly on rolling axle 9 all the time under the effect of spring pressure subassembly 33, makes sheet 8 automatic upward roll fast, simple structure, reduction in production cost and further improve production efficiency.

The foregoing shows and describes the basic principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are included to illustrate the principles of the application and that various changes and modifications may be made without departing from the spirit and scope of the application, the scope of which is defined by the appended claims, specification and equivalents thereof.

Claims (9)

1. The utility model provides an automatic upward roll cutting device for rolling machine, the rolling machine including be provided with the roll-over stand of rolling axle, its characterized in that, automatic upward roll cutting device include:

the supporting mechanism (1) comprises a pair of oppositely arranged supporting plates (11) and a first driving assembly (12) for driving the pair of supporting plates (11) to switch between a working position close to the roll-over stand and a static position far away from the roll-over stand;

the cylinder compression roller mechanism (2) comprises a first compression roller (21) parallel to the winding shaft (9) and a pair of compression roller cylinders (22) respectively arranged on the pair of supporting plates (11), and the pair of compression roller cylinders (22) are connected with the first compression roller (21) to drive the first compression roller (21) to be pressed on the winding shaft (9);

the spring pressing roller mechanism (3) comprises a second pressing roller (31) parallel to the winding shaft (9) and a pair of mounting seats (32) respectively arranged at two end parts of the second pressing roller (31), and a spring adjusting assembly (33) for pressing the second pressing roller (31) on the winding shaft (9) is arranged in each mounting seat (32);

the rotating mechanism (4) comprises a first rotating assembly (41) with a rotating gear (411) and a first driving motor (43) for driving the rotating gear (411) to rotate around the axis of the rotating mechanism, the first rotating assembly (41) and the first driving motor (43) are arranged on one of the supporting plates (11), the spring pressing roller mechanism (3) is fixedly connected with the rotating gear (411) so that the second pressing roller (31) and the rotating gear (411) rotate coaxially, the rotating gear (411) is provided with a limiting groove (422) for accommodating at least part of the winding shaft (9), and the limiting groove (422) is provided with an outward opening; and

the automatic cutting device (5) is arranged between the pair of supporting plates (11), and the automatic cutting device (5) comprises a cutter (51) and a second driving assembly (52) which is connected with the cutter (51) to drive the cutter (51) to move back and forth along the transverse direction.

2. The automatic winding and cutting device for the winding machine according to claim 1, wherein a sliding through hole (320) for accommodating the spring adjusting assembly (33) is formed in the mounting seat (32), the spring adjusting assembly (33) comprises a spring (331) capable of moving back and forth in the sliding through hole (320) and an adjusting nut (332) in fit connection with the sliding through hole (320), and the adjusting nut (332) is connected to one end portion, away from the second pressing roller (31), of the mounting seat (32).

3. The automatic winding and cutting device for the winding machine according to claim 2, wherein the spring pressing roller mechanism (3) further comprises a pair of sliding shafts (34) respectively connected with two ends of the second pressing roller (31), the axial lines of the pair of sliding shafts (34) are perpendicular to the axial line of the second pressing roller (31), each sliding shaft (34) is arranged in the corresponding sliding through hole (320) in a penetrating manner and sleeved with the corresponding spring (331), and the spring (331) is positioned between the sliding shaft (34) and the adjusting nut (332).

4. The automatic lap-cutting apparatus for lap-winding machines according to claim 1, characterized in that said first rotating assembly (41) comprises an inner copper sleeve (412) and an outer copper sleeve (413) connected to said supporting plate (11), said rotating gear (411) being connected to said inner copper sleeve (412) and said outer copper sleeve (413) in rotation about its own axis.

5. The automatic lap-up cutting device for lap-winding machine according to claim 1, characterized in that said rotating mechanism (4) further comprises a second rotating assembly (42) arranged on the other said supporting plate (11), said second rotating assembly (42) comprising a rotating member (421) rotatable around the axis of said rotating gear (411), said rotating member being fixedly connected with said spring-roller mechanism (3).

6. The automatic coil-up cutting device for the winding machine according to claim 1, characterized in that the automatic coil-up cutting device comprises a PLC controller, the first driving motor (43) is a servo motor, and the servo motor is in signal connection with the PLC controller.

7. The automatic lap cutting device for lap-winding machines according to claim 1, characterized in that said first driving assembly (12) comprises a pair of driving cylinders (121) respectively associated with a pair of said supporting plates (11) and a pair of moving guides (122) extending in a front-to-rear direction, each of said driving cylinders (121) being associated with a corresponding said supporting plate (11), a pair of said supporting plates (11) being respectively slidingly arranged on a pair of said moving guides (122).

8. The automatic lap cutting apparatus for lap-winding machines according to claim 1, characterized in that said second driving assembly (52) comprises a linear guide (521) extending along a transverse direction, a plurality of tension pulleys (522) spaced along said linear guide (521), and a second driving motor (524) in transmission connection with said cutting knife (51) through a transmission belt (523), said transmission belt (523) being tensioned between said plurality of tension pulleys (522) and said cutting knife (51) to drive said cutting knife (51) to move along said linear guide (521).

9. The automatic lap-cutting apparatus for lap-winding machines according to claim 8, characterized in that said second driving assembly (52) is further provided with a pair of limit switches (525), said pair of limit switches (525) being respectively provided at both ends of said linear guide (521).

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