Automatic doffing mechanism of weaving machine

Abstract

The utility model discloses an automatic cropping mechanism of a weaving machine. According to the technical scheme, the cloth cutting device comprises a cloth roller arranged between an upper head wall plate and a lower head wall plate, a left supporting base is arranged on the upper head wall plate, a right supporting base is arranged on the lower head wall plate, the cloth roller is carried on the left supporting base and the right supporting base, an electric heating wire cloth cutting module is arranged above the cloth roller, and the electric heating wire cloth cutting module is arranged above the cloth roller. The electric heating wire cloth cutting module comprises an electric heating wire, a cloth cutting supporting unit used for supporting the electric heating wire and a cloth cutting driving unit capable of driving the supporting unit and the electric heating wire to swing in a reciprocating mode, and an automatic loading module capable of enabling the cloth roller to move leftwards in the axial direction is arranged at the right end of the cloth roller. The left end of the cloth roller is provided with an automatic unloading module capable of enabling the cloth roller to move rightwards in the axial direction till the cloth roller is separated from the cloth roller supporting shaft. According to the scheme provided by the utility model, automatic cloth cutting and automatic loading and unloading of the cloth roller can be realized, and the automation degree of the doffing process of the weaving machine can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of loom equipment, in particular to an automatic cloth dropping mechanism of a loom. Background Art

[0002] In the prior art, the cloth doffing process on a loom typically requires manual operation. The cloth roll must be manually loaded, and once the cloth on the roll reaches production requirements, the cloth must be cut, the roll removed, and transported to the next process. This purely manual operation is labor-intensive and inefficient. Furthermore, manual cutting prevents the fabric from being trimmed, resulting in burrs. Therefore, the inventors sought to design an automated cloth doffing mechanism that could automatically load, cut, and unload the roll. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the main purpose of the present invention is to provide an automatic cloth dropping mechanism for a loom that can realize automatic cloth cutting, automatic loading and unloading of the cloth roller, and can improve the degree of automation of the cloth dropping process of the loom.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic cloth-dropping mechanism of a loom, comprising a cloth-dropping roller arranged between an upper wall panel and a lower wall panel, the upper wall panel being provided with a left support seat, the lower wall panel being provided with a right support seat, the cloth-dropping roller being carried on the left support seat and the right support seat, an electric heating wire cloth-cutting module being provided above the cloth-dropping roller, the electric heating wire cloth-cutting module comprising an electric heating wire, a cloth-cutting support unit for supporting the electric heating wire, and a cloth-cutting drive unit capable of driving the support unit and the electric heating wire to perform reciprocating swinging motion, an automatic loading module capable of axially displacing the cloth-dropping roller to the left, and an automatic unloading module capable of axially displacing the cloth-dropping roller to the right until it is separated from the cloth-dropping roller support shaft.

[0005] Preferably, the cloth cutting support unit includes a heating wire support rod and end support assemblies and a steering assembly arranged at both ends of the heating wire support rod, the end support assembly is fixedly connected to one end of the heating wire, the steering assembly includes a long splint sleeve, and one end of the heating wire relative to the end support assembly is also connected to a steel wire rope through a joint fixing assembly, the long splint sleeve is provided with a steering roller in contact with the steel wire rope, the heating wire support rod is also provided with a telescopic compensation assembly, the telescopic compensation assembly includes a short splint sleeve fixed on the heating wire support rod, the short splint sleeve is connected to a spring, the One end of the spring relative to the short splint sleeve is hooked to the end of the steel wire rope; the cloth cutting drive unit includes a cloth cutting servo motor bracket fixedly connected to the upper wall panel or the lower wall panel, the cloth cutting servo motor bracket is fixedly connected to the cloth cutting servo motor, the output shaft of the cloth cutting servo motor is fixedly connected to the worm, and the cloth cutting servo motor bracket is also fixedly provided with a support rod bearing seat through which the heating wire support rod is passed, the end of the heating wire support rod is fixedly connected to a worm gear meshing with the worm, and the servo motor drives the heating wire support rod and the heating wire to swing back and forth through the forward and reverse rotation of the output shaft.

[0006] Preferably, the end support assembly includes an end clamping plate sleeve mounted on the heating wire support rod, the end clamping plate sleeve is locked on the heating wire support rod by bolts and nuts, and the heating wire is clamped and fixed in the middle of the end clamping plate sleeve.

[0007] Preferably, the joint fixing assembly includes a joint bolt, two flat washers sleeved on the joint bolt, and a joint nut connected to the joint bolt, and the ends of the heating wire and the wire rope are clamped and fixed between the two flat washers by the joint bolt and the joint nut respectively.

[0008] Preferably, the automatic loading module includes a loading drive assembly and a loading transmission assembly, the loading drive assembly includes a loading servo motor, the output shaft of the loading servo motor is fixedly connected to a pinion, the loading servo motor is fixed to the loading motor bracket by bolts, the loading motor bracket is fixed to the loading base by bolts, and the loading base is fixed to the lower wall panel by bolts; the loading transmission assembly includes a cloth winding roller support fixed to the lower wall panel by bolts, the cloth winding roller support is connected to a rotating disk through a ball bearing, a transmission screw is passed through the center of the cloth winding roller support and the rotating disk, the rotating disk is threadedly connected to the transmission screw, the end of the transmission screw is fixedly connected to a cloth winding roller top seat that can abut the end of the cloth winding roller through a ball bearing, and a large gear meshing with the pinion is fixedly connected to the outer wall of the rotating disk.

[0009] Preferably, the automatic unloading module includes an unloading drive component and an unloading eccentric transmission component, the unloading drive component includes an unloading servo motor and a reducer fixedly connected to the unloading servo motor, the reducer is fixed on the automatic disassembly bracket, and the automatic disassembly bracket is fixed on the left bracket; the unloading eccentric transmission component includes an eccentric shaft, an automatic disassembly connecting rod, an automatic disassembly shaft and an automatic disassembly pedal, the output shaft of the reducer is fixedly connected to the inner ring of the eccentric shaft, the automatic disassembly connecting rod includes a large circle hole and a small circle hole, the outer wall of the eccentric shaft is fixed in the large circle hole of the automatic disassembly connecting rod through a ball bearing, and the automatic disassembly shaft includes short shafts connected in sequence The cam is fixed to the small circle hole of the automatic disassembly connecting rod through a bushing, and the lower part of the automatic disassembly pedal is provided with a threaded hole matching the short axis section, and the automatic disassembly shaft is threadedly connected to the threaded hole through the short axis section to realize the fixation with the automatic disassembly pedal. A through hole is provided on the left support seat, and two L-shaped rotating shaft brackets are symmetrically provided on the left support seat at the through hole. The automatic disassembly pedal passes through the through hole and the middle of the two L-shaped rotating shaft brackets, and the two L-shaped rotating shaft brackets and the automatic disassembly pedal are rotatably connected through the rotating shaft. A Y-shaped push plate is provided on the top of the automatic disassembly pedal, and the Y-shaped push plate abuts the end face of the cloth winding roller.

[0010] Preferably, the left support and the right support are respectively provided with an arc groove that fits with the cloth rolling roller.

[0011] Preferably, a wire rope guard is provided on the long splint sleeve.

[0012] A control method, comprising a controller and a display screen, comprising:

[0013] (a) During the loom production process, when the amount of fabric on the cloth roller reaches the production requirement, the employee issues a cloth drop command through the display screen, and the loom's automatic cloth drop mechanism starts working;

[0014] (b) The controller sends a command to the relay, connects the transformer and controls the heating wire to start energizing and heating. The real-time temperature of the heating wire is fed back to the controller through the temperature sensor. When the real-time temperature of the heating wire reaches 800-900°C, the controller sends a command to the cloth-cutting servo motor driver: the output shaft of the cloth-cutting servo motor rotates forward, and the heating wire is driven by mechanical transmission to swing a certain amplitude and contact the fabric. After that, the cloth-cutting servo motor stops for a period of time. During the period when the cloth-cutting servo motor is stationary, the heating wire uses its own high temperature to cut the fabric. After the fabric is cut, the relay is disconnected, the heating wire is de-energized, and the output shaft of the cloth-cutting servo motor reverses to drive the heating wire back to the starting point. After that, the cloth-cutting servo motor stops running. The cloth cutting is completed and the loading mechanism retraction command is executed.

[0015] (c) The controller issues an instruction to the driver of the loading servo motor: the output shaft of the loading servo motor reverses to drive the cloth roller top seat away from the cloth roller, and the loading servo motor stops running after the cloth roller top seat retracts to the farthest point, the loading mechanism completes the retraction and starts to execute the unloading command;

[0016] (d) The controller issues a command to the driver of the unloading servo motor: the output shaft of the unloading servo motor rotates forward to drive the cloth roller automatic disassembly pedal to swing back and forth, so that the cloth roller is separated from the cloth roller support shaft and the unloading servo motor stops running. The cloth roller unloading is completed and the cloth roller is waiting to be replaced;

[0017] (e) After the cloth roller loaded with fabric is replaced with an empty cloth roller, the infrared sensor switch transmits this signal to the controller, which controls the driver of the loading servo motor to issue instructions: the output shaft of the loading servo motor rotates forward to drive the cloth roller top seat close to the cloth roller and exerts a force on the cloth roller after contact, so that the left side of the cloth roller is close to the cloth roller support shaft; at this time, the cloth roller has no radial displacement, the automatic loading mechanism enters a locked state, and the loading servo motor enters a low-torque standby mode; when the loom starts to run, the cloth roller support shaft rotates, and when the cloth roller support shaft card point coincides with the groove on the left side of the cloth roller, the left side of the cloth roller is screwed into the cloth roller support shaft, the loading servo motor stops running, and the loading of the cloth roller is completed.

[0018] Preferably, the controller is a PLC or a single chip microcomputer.

[0019] The present invention offers the following advantages over existing technologies: The heating wire support rod in the electric heating wire cutting module swings a predetermined amplitude, moving the heating wire from a position away from the fabric to contact with it. After completing the cutting action, the wire returns to its starting point. As it approaches the fabric, the heating wire is energized and heated, and upon contact with the fabric, the high temperature cuts the fabric. In the automatic loading module, the radial rotation of the rotating disk is converted to axial movement of the drive screw via a helical drive. The drive screw moves toward the lower wall of the loom, driving the top seat of the cloth roller away from the right end face of the cloth roller. Once the top seat of the cloth roller has moved a certain distance, the cloth roller loading mechanism completes its operation. In the automatic unloading module, the cloth roller automatic disassembly pedal swings back and forth, causing its upper Y-shaped push plate to act on the left end face of the cloth roller, forcing the cloth roller to axially translate away from the cloth roller support shaft, thus achieving the cloth roller unloading function. Through the coordinated coordination of the components in each functional module, the automation level of the loom cloth unloading process is improved, reducing the operator's operational burden, improving production efficiency, and achieving lean production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an automatic cloth dropping mechanism of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the electric heating wire cutting cloth module of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0023] Figure 4 This is a schematic diagram of the operation of the electric heating wire cloth cutting module;

[0024] Figure 5 It is a structural schematic diagram of the automatic loading module of the present invention;

[0025] Figure 6 This is a structural diagram of the automatic loading module of the present invention being assembled on the lower wall panel;

[0026] Figure 7 It is a structural schematic diagram of the loading transmission assembly of the present invention;

[0027] Figure 8 for Figure 7 Cross-sectional view of the AA section;

[0028] Figure 9 This is a schematic structural diagram of the automatic unloading module of the present invention;

[0029] Figure 10 The schematic diagram of the structure of the automatic unloading module behind the upper wall panel and the cloth roller is omitted;

[0030] Figure 11 An exploded view of the automatic unloading module of the present invention;

[0031] Figure 12 is a cross-sectional view of the cloth winding roller of the present invention;

[0032] Figure 13 Schematic diagram of the control method of the present invention.

[0033] Figure: 1, upper wall panel; 11, left support; 111, through hole; 2, lower wall panel; 21, right support; 3, cloth roll; 4, electric heating wire cloth cutting module; 41, electric heating wire; 42, cloth cutting support unit; 421, electric heating wire support rod; 422, long splint sleeve; 423, wire rope; 424, steering roller; 425, wire rope guard; 43, cloth cutting drive unit; 431, cloth cutting servo motor support Frame; 432, cloth cutting servo motor; 433, worm; 434, support rod bearing seat; 435, worm gear; 44, joint fixing assembly; 441, joint bolt; 442, flat washer; 443, joint nut; 45, telescopic compensation assembly; 451, short splint sleeve; 452, spring; 46, end support assembly; 461, end splint sleeve; 5, automatic loading module; 51, loading drive assembly; 51 1. Loading servo motor; 512. Pinion; 513. Loading motor bracket; 514. Loading base; 52. Loading transmission assembly; 521. Cloth roller support; 522. Rotating disk; 523. Transmission screw; 524. Cloth roller top seat; 525. Large gear; 6. Automatic unloading module; 61. Unloading drive assembly; 611. Unloading servo motor; 612. Reducer; 613. Automatic disassembly bracket; 62. Unloading eccentric transmission assembly; 621. Eccentric shaft; 622. Automatic disassembly connecting rod; 6221. Large circle hole; 6222. Small circle hole; 623. Automatic disassembly shaft; 6231. Short shaft section; 6232. Boss section; 6233. Long shaft section; 624. Automatic disassembly pedal; 6241. Y-type push plate; 625. L-type shaft bracket; 626. Shaft; 7. Cloth roller support shaft; 8. Weaving. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings.

[0035] like Figure 1 As shown, an automatic cloth dropping mechanism of a loom includes a cloth winding roller 3 arranged between an upper wall panel 1 and a lower wall panel 2, a left support seat 11 is provided on the upper wall panel 1, and a right support seat 21 is provided on the lower wall panel 2, the cloth winding roller 3 is mounted on the left support seat 11 and the right support seat 21, and an electric heating wire cloth cutting module 4 is provided above the cloth winding roller 3, the electric heating wire cloth cutting module 4 includes an electric heating wire, a cloth cutting support unit 42 for supporting the electric heating wire 41, and a cloth cutting drive unit 43 capable of driving the support unit and the electric heating wire 41 to perform reciprocating swinging motion, the right end of the cloth winding roller 3 is provided with an automatic loading module 5 capable of axially displacing the cloth winding roller 3 to the left, and the left end of the cloth winding roller 3 is provided with an automatic unloading module 6 capable of axially displacing the cloth winding roller 3 to the right until it is separated from the cloth winding roller support shaft 7.

[0036] The automatic cloth-dropping mechanism of a loom of the present invention has a production process in which the cloth 8 on the cloth-dropping roller 3 needs to be removed and transported to the next process after the amount of cloth 8 reaches the production requirement. At this time, the operation steps of the automatic cloth-dropping mechanism of the loom are as follows: the automatic loading module 5 can push the cloth-dropping roller 3 axially to the left to cooperate with the cloth-dropping roller support shaft 7; the automatic unloading module 6 can displace the cloth-dropping roller 3 axially to the right until it is separated from the cloth-dropping roller support shaft 7 to realize automatic unloading of the cloth-dropping roller 3. The new automatic cloth-dropping mechanism of a loom of the present invention improves the degree of automation of the cloth-dropping process of the loom through the coordinated cooperation of the components of various functional modules, reduces the operating burden of workers, improves production efficiency, and realizes lean production.

[0037] The radial rotation of the rotary disc 522 in the automatic loading module 5 is converted into axial movement of the drive screw 523 via a spiral drive. The drive screw 523 moves toward the lower wall panel 2 of the loom, driving the cloth roller top seat 524 away from the right end face of the cloth roller. When the cloth roller top seat 524 moves away to the corresponding distance, the cloth roller loading mechanism completes its operation. The cloth roller automatic disassembly pedal 624 in the automatic unloading module 6 swings back and forth, and its upper Y-shaped push plate 6241 acts on the left end face of the cloth roller, forcing the cloth roller to move axially and disengage from the cloth roller support shaft 7, thus completing the cloth roller unloading function.

[0038] Preferably, the cloth cutting support unit 42 includes a heating wire support rod 421 and an end support assembly 46 and a steering assembly arranged at both ends of the heating wire support rod 421, the end support assembly 46 is fixedly connected to one end of the heating wire 41, the steering assembly includes a long splint sleeve 422, and the end of the heating wire 41 relative to the end support assembly 46 is also connected to a steel wire rope 423 through a joint fixing assembly 44, the long splint sleeve 422 is provided with a steering roller 424 that contacts the steel wire rope 423, and the heating wire support rod 421 is also provided with a telescopic compensation assembly 45, the telescopic compensation assembly 45 includes a short splint sleeve 451 fixed on the heating wire support rod 421, and the short splint sleeve 451 is connected to a spring 452, One end of the spring 452 relative to the short splint sleeve 451 is hooked with the end of the wire rope 423; the cloth cutting drive unit 43 includes a cloth cutting servo motor bracket 431 fixedly connected to the upper wall panel 1 or the lower wall panel 2, and the cloth cutting servo motor bracket 431 is fixedly connected to the cloth cutting servo motor 432, and the output shaft of the cloth cutting servo motor 432 is fixedly connected to the worm 433, and the cloth cutting servo motor bracket 431 is also fixedly provided with a support rod bearing seat 434 through which the heating wire support rod 421 can pass, and the end of the heating wire support rod 421 is fixedly connected to a worm gear 435 meshing with the worm 433, and the servo motor drives the heating wire support rod 421 and the heating wire to swing back and forth through the forward and reverse rotation of the output shaft.

[0039] Preferably, the end support assembly 46 includes an end clamping sleeve 461 which is sleeved on the heating wire support rod 421. The end clamping sleeve 461 is locked on the heating wire support rod 421 by bolts and nuts, and the heating wire 41 is clamped and fixed in the middle of the end clamping sleeve 461.

[0040] Preferably, the joint fixing assembly 44 includes a joint bolt 441, two flat washers 442 sleeved on the joint bolt 441, and a joint nut 443 connected to the joint bolt 441. The ends of the heating wire 41 and the wire rope 423 are clamped and fixed between the two flat washers 442 by the joint bolt 441 and the joint nut 443 respectively.

[0041] The purpose of using the steering roller 424 to change the direction of the wire rope 423 is to increase the width of the cloth cut by the heating wire 41 while maintaining the same reed width. The purpose of adding the telescopic compensation assembly 45 is to increase the length of the heating wire 41 after it is energized and heated. The increased length of the heating wire 41 at high temperatures is absorbed by the spring 452. After cooling, the heating wire 41 retracts to its original size, ensuring that the heating wire 41 is always in a tensioned state. For looms with larger reed widths, this solution uses an end support assembly 46 to support and fix one end of the heating wire 41. The joint fixing assembly 44 tightly fixes the wire rope 423 to the heating wire 41, providing convenient operation and effective structural tightening.

[0042] The periodic oscillation of the output shaft of the cloth-cutting servo motor 432, through the meshing transmission of the worm gear 435 and the worm 433, changes its direction of rotation and drives the heating wire support rod 421 to cyclically oscillate. This cyclical oscillation of the heating wire support rod 421 moves the heating wire 41 from a distance from the cloth 8 to contact with the cloth 8, and then returns to the starting point after the cloth-cutting operation is completed. The heating wire 41 is energized and heated during its movement toward the cloth 8, and when it contacts the cloth 8, the high temperature is used to cut the cloth 8. The purpose of using the heating wire 41 for cloth cutting is to use the high temperature of the heating wire 41 to trim the cut edge of the cloth 8 during the cutting process. This mechanism improves the automation level of the cloth-cutting process on the loom, reduces the operator's operating burden, and improves production efficiency.

[0043] Preferably, the automatic loading module 5 includes a loading drive component 51 and a loading transmission component 52, the loading drive component 51 includes a loading servo motor 511, the output shaft of the loading servo motor 511 is fixedly connected to a pinion 512, the loading servo motor 511 is fixed to a loading motor bracket 513 by bolts, the loading motor bracket 513 is fixed to a loading base 514 by bolts, and the loading base 514 is fixed to the lower wall panel 2 by bolts; the loading transmission component 52 includes a through The cloth rolling roller support 521 is fixed to the lower wall panel 2 by bolts, and the cloth rolling roller support 521 is connected to the rotating disk 522 through a ball bearing. A transmission screw 523 is passed through the center of the cloth rolling roller support 521 and the rotating disk 522. The rotating disk 522 is threadedly connected to the transmission screw 523. The end of the transmission screw 523 is fixedly connected to the cloth rolling roller top seat 524 that can abut the end of the cloth rolling roller through a ball bearing. A large gear 525 that meshes with the small gear 512 is fixedly connected to the outer wall of the rotating disk 522.

[0044] The pinion 512 is secured to the output shaft of the loading servo motor 511 via a set screw. The loading servo motor 511 is secured to the loading motor bracket 513 via four bolts. The loading motor bracket 513 is secured to the loading base 514 via two sets of bolts. The two sets of bolts and washers 442 pass through the cloth roller support 521 and the loading base 514, securing the cloth roller support 521 and the loading base 514 to the lower wall panel 2 of the loom. The right bracket 21 is also secured to the lower wall panel 2 of the loom via two sets of bolts and washers 442. The cloth rolling roller support 521 limits the radial rotation of the transmission screw 523 and realizes the axial displacement of the transmission screw 523 through key cooperation. The cloth rolling roller support 521 realizes the radial rotation of the rotating disk 522 through ball bearing cooperation and limits the axial displacement of the rotating disk 522 through the cooperation of the internal boss and the retaining spring of the rotating disk 522. The rotating disk 522 and the transmission screw 523 interact with each other through spiral transmission. The large gear 525 is fixed to the rotating disk 522 by a set screw. The cloth rolling roller top seat 524 acts on the left side of the transmission screw 523 through a ball bearing cooperation.

[0045] During operation, the radial rotation of the output shaft of the loading servo motor 511 drives the radial rotation of the rotating disk 522 through the gear combination of the small gear 512 and the large gear 525. The radial rotation of the rotating disk 522 is converted into axial movement of the drive screw 523 through the spiral transmission. The axial movement of the drive screw 523 acts on the right end surface of the cloth roller 3 through the cloth roller top seat 524, causing the cloth roller 3 to axially translate to the cloth roller support shaft 7 on the left side of the cloth roller 3, thus realizing the automatic loading function of the cloth roller 3. After loading is completed, if the cloth roller needs to be unloaded, the loading servo motor 511 drives the small gear 512 to reverse, thereby moving the cloth roller top seat 524 away from the cloth roller. This automatic cloth roller loading mechanism can improve the automation of the cloth roller loading process on the loom, reduce the operator's operating burden, and improve production efficiency.

[0046] Preferably, the automatic unloading module 6 includes an unloading drive component 61 and an unloading eccentric transmission component 62, the unloading drive component 61 includes an unloading servo motor 611 and a reducer 612 fixedly connected to the unloading servo motor 611, the reducer 612 is fixed on the automatic disassembly bracket 613, and the automatic disassembly bracket 613 is fixed on the left bracket 11; the unloading eccentric transmission component 62 includes an eccentric shaft 621, an automatic disassembly connecting rod 622, an automatic disassembly shaft 623 and an automatic disassembly pedal 624, the output shaft of the reducer 612 is fixedly connected to the inner ring of the eccentric shaft 621, the automatic disassembly connecting rod 622 includes a large circle hole 6221 and a small circle hole 6222, the outer wall of the eccentric shaft 621 is fixed in the large circle hole 6221 of the automatic disassembly connecting rod 622 by a ball bearing, and the automatic disassembly shaft 623 includes short shaft segments 623 connected in sequence The cam 624 is fixed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624 by a screw thread, and the cam 624 is screwed to the bottom of the automatic disassembly link 624

[0047] The unloading servo motor 611 in the unloading drive assembly 61 is fixed to the rear of the reducer 612 by four bolts, the reducer 612 is fixed to the automatic disassembly bracket 613 by four bolts, the automatic disassembly bracket 613 is fixed to the right support 21 by two bolts passing through the flat washer 442, and the two bolts pass through the flat washer 442 to fix the right support 21 to the upper wall panel 1 of the loom.

[0048] The transmission shaft of reducer 612 acts on the inner ring of eccentric shaft 621, locked by a set screw. The outer ring of eccentric shaft 621 acts on the inside of the large circle hole 6221 of automatic disassembly link 622 via a roller bearing. The inside of the small circle hole 6222 of automatic disassembly link 622 acts on the long shaft section 6233 of automatic disassembly shaft 623 via a bushing. The boss section 6232 of automatic disassembly shaft 623 and a retaining spring achieve axial fixation between the automatic disassembly link 622 and the automatic disassembly shaft 623. The short shaft section 6231 of automatic disassembly shaft 623 is fixed to the threaded hole below the automatic disassembly pedal 624 via threaded locking. Two L-shaped rotating shaft brackets 625 are placed through the rotating shaft in the through hole 111 above the automatic disassembly pedal 624. These two L-shaped rotating shaft brackets 625 are fixed to the left bracket using four sets of bolts and flat washers 442.

[0049] In this solution, the radial rotation of the output shaft of the unloading servo motor 611 is converted into the reciprocating swing of the automatic disassembly pedal 624 through mechanical transmission. The reciprocating swing of the Y-shaped push plate 6241 of the automatic disassembly pedal 624 acts on the left end face of the cloth rolling roller, causing the cloth rolling roller to axially translate and separate from the cloth rolling roller support shaft 7, thereby realizing the automatic unloading function of the cloth rolling roller.

[0050] Preferably, the left support 11 and the right support 21 are respectively provided with an arc groove that fits the cloth rolling roller. The setting of the arc groove can fit the cloth rolling roller more closely and provide more stable support.

[0051] Preferably, a wire rope guard 425 is provided on the long splint sleeve 422. The wire rope guard 425 is used to protect the steering roller 424 and the wire rope 423 to prevent foreign matter from entering and causing jamming.

[0052] A control method, comprising a controller and a display screen, comprising:

[0053] (a) During the loom production process, when the amount of fabric on the cloth roller reaches the production requirement, the employee issues a cloth drop command through the display screen, and the loom's automatic cloth drop mechanism starts working;

[0054] (b) The controller sends a command to the relay, connects the transformer and controls the heating wire 41 to start energizing and heating. The real-time temperature of the heating wire 41 is fed back to the controller through the temperature sensor. When the real-time temperature of the heating wire 41 reaches 800-900°C, the controller sends a command to the cloth-cutting servo motor driver: the output shaft of the cloth-cutting servo motor 432 rotates forward, and the heating wire 41 is driven by mechanical transmission to swing a certain amplitude and contact the cloth, and then the cloth-cutting servo motor 432 stops for a period of time. During the period when the cloth-cutting servo motor 432 is stationary, the heating wire 41 uses its own high temperature to cut the cloth 8. After the cloth 8 is cut, the relay is disconnected, the heating wire 41 is powered off, and the output shaft of the cloth-cutting servo motor 432 reverses to drive the heating wire 41 back to the starting point. After that, the cloth-cutting servo motor 432 stops running, and the cloth-cutting is completed and the loading mechanism retract command is executed.

[0055] (c) The controller issues an instruction to the driver of the loading servo motor 511: the output shaft of the loading servo motor 511 reverses to drive the cloth roller top seat 524 away from the cloth roller 3, and the loading servo motor 511 stops running after the cloth roller top seat 524 retracts to the farthest point, the loading mechanism completes the retraction and starts to execute the unloading command;

[0056] (d) The controller issues an instruction to the driver of the unloading servo motor 611: the output shaft of the unloading servo motor 611 rotates forward to drive the cloth roller automatic disassembly pedal 624 to swing back and forth, so that the cloth roller 3 is separated from the cloth roller support shaft 7, and then the unloading servo motor 611 stops running. The cloth roller 3 is unloaded and waits for the cloth roller to be replaced;

[0057] (e) After the cloth roller 3 loaded with the fabric 8 is replaced with an empty cloth roller 3, the infrared sensor switch transmits this signal to the controller, which controls the driver of the loading servo motor 511 to issue instructions: the output shaft of the loading servo motor 511 rotates forward to drive the cloth roller top seat 524 close to the cloth roller 3 and exerts a force on the cloth roller 3 after contact, so that the left side of the cloth roller 3 is pressed against the cloth roller support shaft 7; at this time, the cloth roller 3 has no radial displacement, the automatic loading mechanism enters a locked state, and the loading servo motor 511 enters a low-torque standby mode; when the loom starts to run, the cloth roller support shaft 7 rotates, and when the card point of the cloth roller support shaft 7 coincides with the groove on the left side of the cloth roller 3, the left side of the cloth roller 3 is screwed into the cloth roller support shaft 7, the loading servo motor stops running, and the loading of the cloth roller 7 is completed. Refer to the attached Figure 12 , grooves are provided on both sides of the cloth rolling roller 3, and the cloth rolling roller support shaft 7 is provided with card points corresponding to the grooves. Figure 13 In the figure, the cloth cutting motor is the cloth cutting servo motor 432 , the loading motor is the loading servo motor 511 , and the unloading motor is the unloading servo motor 611 .

[0058] Preferably, the controller is a PLC or a single chip microcomputer.

[0059] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic cloth dropping mechanism for a loom, comprising a cloth winding roller disposed between an upper wall panel and a lower wall panel, characterized in that: A left support is provided on the upper wall panel, and a right support is provided on the lower wall panel. The cloth winding roller is mounted on the left and right support seats. An electric heating wire cloth cutting module is provided above the cloth winding roller. The electric heating wire cloth cutting module includes an electric heating wire, a cloth cutting support unit for supporting the electric heating wire, and a cloth cutting drive unit capable of driving the support unit and the electric heating wire to perform reciprocating swinging movements. An automatic loading module capable of axially displacing the cloth winding roller to the left is provided at the right end of the cloth winding roller, and an automatic unloading module capable of axially displacing the cloth winding roller to the right until it is separated from the cloth winding roller support shaft is provided at the left end of the cloth winding roller.

2. The automatic cloth dropping mechanism of a loom according to claim 1, characterized in that: The cloth cutting support unit includes a heating wire support rod and end support assemblies and a steering assembly arranged at both ends of the heating wire support rod, the end support assembly is fixedly connected to one end of the heating wire, the steering assembly includes a long splint sleeve, and one end of the heating wire relative to the end support assembly is also connected to a steel wire rope through a joint fixing assembly, the long splint sleeve is provided with a steering roller in contact with the steel wire rope, the heating wire support rod is also provided with a telescopic compensation assembly, the telescopic compensation assembly includes a short splint sleeve fixed on the heating wire support rod, and the short splint sleeve is connected to an elastic Spring, one end of the spring relative to the short splint sleeve is hooked to the end of the wire rope; the cloth cutting drive unit includes a motor bracket fixedly connected to the upper wall panel or the lower wall panel, the motor bracket is fixedly connected to a cloth cutting servo motor, the output shaft of the cloth cutting servo motor is fixedly connected to a worm, and the motor bracket is also fixedly provided with a support rod bearing seat through which the heating wire support rod can pass, the end of the heating wire support rod is fixedly connected to a worm gear meshing with the worm, and the servo motor drives the heating wire support rod and the heating wire to swing back and forth through the forward and reverse rotation of the output shaft.

3. The automatic cloth dropping mechanism of a loom according to claim 2, characterized in that: The end support assembly includes an end clamping plate sleeve mounted on the heating wire support rod. The end clamping plate sleeve is locked on the heating wire support rod by bolts and nuts. The heating wire is clamped and fixed in the middle of the end clamping plate sleeve.

4. The automatic cloth dropping mechanism of a loom according to claim 2, characterized in that: The joint fixing assembly includes a joint bolt, two flat washers sleeved on the joint bolt, and a joint nut connected to the joint bolt. The ends of the heating wire and the wire rope are clamped and fixed between the two flat washers by the joint bolt and the joint nut respectively.

5. The automatic cloth dropping mechanism of a loom according to claim 1, characterized in that: The automatic loading module includes a loading drive assembly and a loading transmission assembly, the loading drive assembly includes a loading servo motor, the output shaft of the loading servo motor is fixedly connected to a pinion, the loading servo motor is fixed to the loading motor bracket by bolts, the loading motor bracket is fixed to the loading base by bolts, and the loading base is fixed to the lower wall panel by bolts; the loading transmission assembly includes a cloth winding roller support fixed to the lower wall panel by bolts, the cloth winding roller support is connected to a rotating disk by a ball bearing, a transmission screw is passed through the center of the cloth winding roller support and the rotating disk, the rotating disk is threadedly connected to the transmission screw, the end of the transmission screw is fixedly connected to a cloth winding roller top seat that can abut the end of the cloth winding roller by a ball bearing, and a large gear meshing with the pinion is fixedly connected to the outer wall of the rotating disk.

6. The automatic cloth dropping mechanism of a loom according to claim 1, characterized in that: The automatic unloading module includes an unloading drive component and an unloading eccentric transmission component, the unloading drive component includes an unloading servo motor and a reducer fixedly connected to the unloading servo motor, the reducer is fixed on the automatic disassembly bracket, and the automatic disassembly bracket is fixed on the left bracket; the unloading eccentric transmission component includes an eccentric shaft, an automatic disassembly connecting rod, an automatic disassembly shaft and an automatic disassembly pedal, the output shaft of the reducer is fixedly connected to the inner ring of the eccentric shaft, the automatic disassembly connecting rod includes a large circle hole and a small circle hole, the outer wall of the eccentric shaft is fixed in the large circle hole of the automatic disassembly connecting rod through a ball bearing, and the automatic disassembly shaft includes short shaft sections, The boss section and the long axis section, the long axis section is fixed in the small circle hole of the automatic disassembly connecting rod through a bushing, the lower part of the automatic disassembly pedal is provided with a threaded hole that cooperates with the short axis section, and the automatic disassembly shaft is threadedly connected to the threaded hole through the short axis section to achieve fixation with the automatic disassembly pedal. A through hole is provided on the left support seat, and two L-shaped rotating shaft brackets are symmetrically provided on the left support seat at the through hole. The automatic disassembly pedal passes through the through hole and the middle of the two L-shaped rotating shaft brackets, and the two L-shaped rotating shaft brackets and the automatic disassembly pedal are rotatably connected together through the rotating shaft. A Y-shaped push plate is provided on the top of the automatic disassembly pedal, and the Y-shaped push plate abuts against the end face of the cloth winding roller.

7. The automatic cloth dropping mechanism of a loom according to claim 1, characterized in that: The left supporting seat and the right supporting seat are respectively provided with arc grooves which fit with the cloth rolling roller.

8. The automatic cloth dropping mechanism of a loom according to claim 2, characterized in that: A wire rope guard is provided on the long splint sleeve.

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