A coreless winding mechanism

Abstract

This invention relates to the field of winding equipment technology, specifically to a coreless winding mechanism, comprising a frame, a guide module, a rotary driver, an elastic traction module, and an auxiliary module. The guide module is arranged parallel to the long side of the frame. The rotary driver is slidably mounted on the guide module via a sliding seat. The elastic traction module is coaxially driven on the output shaft of the rotary driver, and the elastic traction module has a traction rod eccentric to the output shaft of the rotary driver. Two sets of auxiliary modules are provided, which are vertically slidably mounted on the guide module and can move away from or closer to each other along the guiding direction of the guide module. This invention can not only perform coreless winding of roll materials of different materials but also perform empty winding without external equipment guidance. It has good winding effect and high speed. It reduces the cost of using cores, reduces the process cost of manufacturing and recycling cores, and reduces manual core loading and other operational processes.

Description

Technical Field

[0001] This invention relates to the field of winding equipment technology, specifically to a coreless winding mechanism. Background Technology

[0002] Automatic winding machines are the receiving section of roll material processing production lines, widely used in the processing of paper rolls, cloth rolls, plastic rolls, metal rolls, etc. Currently, automatic winding machines are divided into cored rolls and coreless rolls. Cored rolls, as the name suggests, use air inflation or mechanical clamping to tighten and fix the empty core tube; then, other auxiliary equipment assists in winding the roll material onto the core. However, the above winding method requires a core tube for winding, and the core tube cannot be recycled, greatly increasing costs; furthermore, other auxiliary equipment must be involved to complete the winding process. The process is cumbersome and has high production costs. For example, the roll winding device disclosed in CN109850694A uses an internal support tube core to achieve the winding purpose; or the automatic winding device for waterproof membrane with a core disclosed in CN114906652B requires external auxiliary equipment to achieve the winding purpose, which greatly increases the production cost. Coreless rolls need to rely on their own friction and external equipment to achieve the winding purpose, which is not suitable for rolls with hard texture and low surface friction, such as metal rolls. Summary of the Invention

[0003] To address the aforementioned issues, a coreless winding device is provided, which can achieve coreless winding of rolls of different materials, especially metal rolls, which have low surface friction and cannot be fully wound into rolls by external auxiliary equipment. This solves the technical problem that existing winding devices must have cores and external equipment to perform winding.

[0004] To address the problems of existing technologies, the present invention provides a coreless winding mechanism, comprising a frame, a guide module, a rotary driver, an elastic traction module, and an auxiliary module;

[0005] The guide module is mounted parallel to the long side of the rack;

[0006] The rotary actuator is slidably mounted on the guide module via a sliding seat. There are two sets of rotary actuators, which are arranged opposite to each other on the guide module and can move closer or further apart under the drive and guidance of the guide module.

[0007] The elastic traction module is coaxially driven on the output shaft of the rotary driver. The elastic traction module is provided with a traction rod that is eccentric to the output shaft of the rotary driver. The elastic traction module pulls the roll material through the traction rod.

[0008] The auxiliary module has two sets. The two sets of auxiliary modules are vertically slidably arranged on the guide module and can move away from or closer to each other along the guide direction of the guide module to guide the roll material into rolls and assist in the unwinding of the roll material.

[0009] Preferably, the guide module includes a first slide rail, a first mounting bracket, and a first electric push rod;

[0010] The first slide rail is provided in two sets. The two sets of first slide rails are arranged parallel to each other on the frame along the long side of the frame and are respectively located close to both sides of the long side of the frame.

[0011] The sliding seat is positioned across the two sets of first slide rails and can slide back and forth along the long side of the first slide rails. There are two sets of sliding seats, which are respectively located near both ends of the frame to provide horizontal support for the rotary drive.

[0012] The first electric push rod is provided in two sets. The two sets of first electric push rods are respectively fixedly installed at both ends of the frame through the first mounting bracket and respectively fixedly connected to the sliding seat.

[0013] Preferably, the elastic traction module includes a traction rod, a connecting shaft, a first slider, a fixed limiting post, a spring, an infrared detection element, and a traction rod reset element;

[0014] The connecting shaft is coaxially fixed at the output end of the rotary driver, and a groove and a first guide rod vertically arranged in the groove are also provided on the surface of the connecting shaft away from the rotary driver.

[0015] The traction rod is slidably mounted in the groove via the first slider and is slidably connected to the first guide rod; in the non-working state, the traction rod is coaxially mounted with the connecting shaft.

[0016] The spring is coaxially sleeved and installed outside the first guide rod and near the lower end of the first guide rod. The two ends of the spring abut against the side walls of the first slider and the slide groove, respectively.

[0017] The fixed limiting post is coaxially sleeved with the spring and installed outside the first guide rod and close to the upper end of the first guide rod. The two ends of the fixed limiting post are respectively in contact with the side wall of the slide groove and the side wall of the first slider.

[0018] Infrared detection elements are embedded in the side wall of the connecting shaft and two sets are equidistantly arranged along the axis of the connecting shaft. The two sets of infrared detection elements are opposite each other and are respectively located close to the two ends of the short side of the slide.

[0019] The reset element is fixed vertically on the top of the rotary driver via the second mounting bracket and faces the drive end of the rotary driver, in order to drive the traction rod to deflect and reset.

[0020] Preferably, the reset element includes a second electric push rod, a second mounting bracket, a telescopic bracket, a reset frame, and a first guide rod;

[0021] The second electric push rod is fixed vertically on the top of the rotary driver via the second mounting bracket, and is located directly above the traction rod. The drive end of the second electric push rod is set vertically downward.

[0022] The telescopic frame is fixedly mounted horizontally on the drive end of the second electric push rod. The upper surface of the telescopic frame is also provided with two second guide rods that are relatively vertical. The rods of the second guide rods pass through the second mounting frame and slide in cooperation with the second mounting frame.

[0023] The reset frame is vertically fixed on the lower surface of the telescopic frame and centrally fitted onto the outside of the traction rod.

[0024] The rotating touch ring is coaxially rotatably mounted at the connection between the traction rod and the connecting shaft, and the side wall of the rotating touch ring abuts against the inner wall of the reset frame.

[0025] Preferably, the reset frame includes a first V-shaped frame, a second V-shaped frame, and connecting strips; the first V-shaped frame and the second V-shaped frame are arranged opposite to each other, and the first V-shaped frame and the second V-shaped frame are fixedly connected by two sets of mutually parallel connecting strips to form a rhombus frame.

[0026] Preferably, the infrared detection element includes an infrared transmitter, a first infrared receiver, a second infrared receiver, and a mounting bracket;

[0027] The infrared transmitter is fixed vertically on the second mounting bracket via a fixing bracket and is positioned directly opposite the connecting shaft through the second mounting bracket.

[0028] The first infrared receiver is embedded in the side wall of the connecting shaft and is located near the short side of the slide. The first infrared receiver is located directly below the infrared transmitter.

[0029] The second infrared receiver is embedded in the connecting shaft opposite to the first infrared receiver and is positioned opposite to the first infrared receiver on the other side.

[0030] Preferably, the auxiliary module includes a sliding frame, a bearing, and a follower ring;

[0031] The sliding frame is vertically positioned between two sets of first slide rails and can slide back and forth along the long side of the first slide rails; the top surface of the sliding frame is also provided with a through hole for the traction rod to pass through;

[0032] The follower ring is rotatably mounted on one side of the top of the sliding frame via a bearing and is coaxial with the through hole; the diameter of the follower ring is larger than the diameter of the current roll material after it is rolled up; the follower ring is used to guide the roll material during the rolling process.

[0033] Preferably, a calibration disc is coaxially embedded on one side of the follower ring near the middle of the frame. The calibration disc is funnel-shaped. The large opening end of the calibration disc faces the middle of the frame, and the small opening end faces the end of the frame. The diameter of the small opening end of the calibration disc is larger than the total diameter of the two traction rods.

[0034] Preferably, the sliding frame slides in cooperation with the first slide rail through two sets of second sliders fixedly arranged opposite each other at the bottom, and each of the two second sliders is screwed with a locking knob on one side.

[0035] Preferably, the rotary driver is a stepper motor.

[0036] The advantages of this invention compared to the prior art are:

[0037] 1. This invention uses two sets of interlocking traction rods to guide and wind the roll material into a coil. Simultaneously, a reset element enables the opening of the feed gap before the roll material is introduced and the resetting of the traction rods after the roll material is placed in. Furthermore, an infrared detection element further enables precise positioning of the connecting shaft's rotation angle, ensuring that the connecting shaft automatically stops at the required adjustment angle after each operation, facilitating operator control and adjustment.

[0038] 2. This invention realizes how to synchronously drive two sets of rotary drives to move closer or further apart through the guide module; thereby realizing the winding and unloading of the roll material. At the same time, the auxiliary module limits and guides the traction lines that are moving closer to each other, so as to maintain their current posture, ensuring production stability and improving production efficiency. Attached Figure Description

[0039] Figure 1 This is a three-dimensional diagram of a coreless winding mechanism.

[0040] Figure 2 yes Figure 1 A magnified view of part A.

[0041] Figure 3 This is a side view of a coreless winding mechanism.

[0042] Figure 4 This is a three-dimensional structural diagram of the elastic traction module and auxiliary module in a coreless winding mechanism.

[0043] Figure 5 This is a side view of the structure of the elastic traction module and auxiliary module in a coreless winding mechanism.

[0044] Figure 6 yes Figure 5 Sectional view of section BB.

[0045] Figure 7 yes Figure 6 A magnified view of a portion of point C.

[0046] Figure 8 This is an exploded three-dimensional schematic diagram of the elastic traction module in a coreless winding mechanism.

[0047] Figure 9 This is a 3D diagram of a reset element in a coreless winding mechanism.

[0048] Figure 10 This is an exploded three-dimensional schematic diagram of the auxiliary module in a coreless winding mechanism.

[0049] The numbers on the map are:

[0050] 1-Rack;

[0051] 2-Guide module; 21-Sliding seat; 22-First slide rail; 23-First mounting bracket; 24-First electric push rod;

[0052] 3-Rotary actuator;

[0053] 4-Elastic traction module; 41-Traction rod; 42-Connecting shaft; 421-Slide groove; 422-First guide rod; 43-First slider; 44-Fixed limiting post; 45-Spring; 46-Infrared detection element; 461-Infrared transmitter; 462-First infrared receiver; 463-Second infrared receiver; 464-Fixed frame; 47-Reset element; 471-Second mounting frame; 472-Second electric push rod; 473-Telescopic frame; 474-Reset frame; 4741-First V-shaped frame; 4742-Second V-shaped frame; 4743-Connecting strip; 475-Second guide rod; 476-Rotating touch ring;

[0054] 5-Auxiliary module; 51-Sliding frame; 511-Through hole; 52-Bearing; 53-Follower ring; 54-Correction plate; 55-Second slider; 56-Locking knob; 57-Two-way lead screw slide. Detailed Implementation

[0055] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0056] See Figures 1 to 10As shown: A coreless winding mechanism includes a frame 1, a guide module 2, a rotary driver 3, an elastic traction module 4, and an auxiliary module 5. The guide module 2 is arranged parallel to the long side of the frame 1. The rotary driver 3 is slidably mounted on the guide module 2 via a sliding seat 21. Two sets of rotary drivers 3 are arranged opposite each other on the guide module 2 and can move closer or further apart under the drive and guidance of the guide module 2. The elastic traction module 4 is coaxially driven on the output shaft of the rotary driver 3. The elastic traction module 4 is provided with a traction rod 41 eccentric to the output shaft of the rotary driver 3. The elastic traction module 4 pulls the roll material through the traction rod 41. Two sets of auxiliary modules 5 are arranged vertically and slidably on the guide module 2 and can move closer or further apart along the guide direction of the guide module 2 to guide the roll material into a coil and assist in unwinding the roll material.

[0057] In operation, when the roll material needs to be wound up, the external power supply first drives the guide module 2 to operate. The guide module 2 synchronously drives the two sets of rotary actuators 3 to move closer together, and the traction rods 41 in the elastic traction module 4, coaxially mounted at the output ends of the two sets of rotary actuators 3, are eccentrically interlocked. These two sets of interlocked traction rods 41 act as the core of the current roll material. A gap is formed between the two sets of traction rods 41, which is the feed gap for inserting the roll material end. To ensure the firmness when tractioning the roll material end, the feed gap is smaller than the thickness of the currently traction roll material. Then, the elastic traction module 4 is driven again to move its traction end radially by an appropriate distance. The gap between the feed and the material increases. At this point, the operator simply inserts the feed end of the roll into the feed gap and moves it away from the equipment to start rolling. The traction end of the elastic traction module 4 before rolling will reset and use its own elasticity to cooperate with another set of elastic traction modules 4 to clamp the end of the roll. Finally, the operator only needs to drive the two sets of rotary drivers 3 to rotate synchronously to realize the rolling operation of the current roll. After the material is rolled into a roll, the operator pushes the external receiving equipment under the roll to support it. At this time, the rotary driver 3 will move away from the roll under the drive of the guide module 2 and pull the traction end of its elastic traction module 4 out of the roll to realize the pushing operation of the roll.

[0058] See Figure 1 and Figure 3As shown: The guide module 2 includes a first slide rail 22, a first mounting bracket 23, and a first electric push rod 24; the first slide rail 22 is provided in two sets, and the two sets of first slide rail 22 are arranged parallel to each other on the frame 1 along the long side direction and are respectively arranged close to both sides of the long side direction of the frame 1; the sliding seat 21 is arranged across the two sets of first slide rail 22 and can slide back and forth along the long side direction of the first slide rail 22. The sliding seat 21 is provided in two sets and is respectively arranged close to both ends of the frame 1 to provide horizontal support for the rotary driver 3; the first electric push rod 24 is provided in two sets, and the two sets of first electric push rod 24 are respectively fixedly arranged at both ends of the frame 1 through the first mounting bracket 23 and respectively fixedly connected to the sliding seat 21.

[0059] In operation, the two sets of sliding seats 21 support the two sets of rotary actuators 3, and the two sets of first electric push rods 24 drive the two sets of sliding seats 21 to slide back and forth on the slide rail. When it is necessary to drive the two sets of rotary actuators 3 to move closer to each other to wind the roll material, an external power supply is first connected to drive the two sets of first electric push rods 24 to move. The output shafts of the two sets of first electric push rods 24 extend synchronously to push the two sets of rotary actuators 3 closer to each other and carry out subsequent operations, thereby realizing how to drive the two sets of rotary actuators 3 to move closer to each other and carry out preparatory work before winding the roll material. Similarly, when the roll material needs to be unloaded after it is formed, the two sets of first electric push rods 24 are driven to move synchronously again, so that their output shafts retract and the two sets of rotary actuators 3 move backward synchronously, thereby realizing how to remove the traction rod 41 from the rolled roll material.

[0060] See Figures 6 to 8As shown: The elastic traction module 4 includes a traction rod 41, a connecting shaft 42, a first slider 43, a fixed limiting post 44, a spring 45, an infrared detection element 46, and a traction rod 41 reset element 47; the connecting shaft 42 is coaxially fixedly mounted on the output end of the rotary driver 3, and the surface of the connecting shaft 42 away from the rotary driver 3 is also provided with a groove 421 and a first guide rod 422 vertically mounted in the groove 421; the traction rod 41 is slidably mounted in the groove 421 through the first slider 43 and is slidably connected to the first guide rod 422; in the non-working state, the traction rod 41 is coaxially mounted with the connecting shaft 42; the spring 45 is coaxially sleeved and mounted on the outside of the first guide rod 422 and is located near the lower end of the first guide rod 422. The two ends of the spring 45 abut against the side walls of the first slider 43 and the slide groove 421, respectively; the fixed limiting post 44 is coaxially sleeved with the spring 45 and installed outside the first guide rod 422 and close to the upper end of the first guide rod 422, and the two ends of the fixed limiting post 44 abut against the side wall of the slide groove 421 and the side wall of the first slider 43, respectively; the infrared detection element 46 is embedded in the side wall of the connecting shaft 42 and two sets are equidistantly arranged along the axis of the connecting shaft 42, and the two sets of infrared detection elements 46 are opposite to each other and are respectively close to the two ends of the short side of the slide groove 421; the reset element 47 is fixed in a vertical state on the top of the rotary driver 3 through the second mounting bracket 471 and is set towards the driving end of the rotary driver 3, so as to drive the traction rod 41 to offset and reset.

[0061] In operation, when the roll material needs to be pulled, the two sets of rotary actuators 3, driven by the guide module 2, are in a close-to-each-other, offset-adhesive posture. When the end of the roll material needs to be secured, an external power supply is first connected to drive the reset element 47 to raise or lower the traction rod 41 directly below it. This causes the traction rod 41 to be radially offset under the adjustment of the reset element 47, thereby widening the feed gap and ensuring that the end of the roll material can be inserted into the feed gap. Whether the reset element 47 performs an upward or downward operation is specifically detected and controlled by the infrared detection element 46. After the end of the rolled material is inserted into the feed gap, the driving end of the reset element 47 cancels the limit on the traction rod 41, causing the traction rod 41 to reset again, thereby realizing the work of limiting and clamping the end of the rolled material after it is inserted into the feed gap. Because a spring 45 is coaxially sleeved on one end of the guide rod and a fixed limiting post 44 is sleeved on the other end, the first slider 43 will only shift towards the end with the spring 45 under the drive of the reset element 47. After the adjustment is completed, when the external force is removed, the first slider 43 will be pressed against the end of the fixed limiting post 44 again under the elastic force of the spring 45.

[0062] See Figure 5 and Figure 9As shown: The reset element 47 includes a second electric push rod 472, a second mounting bracket 471, a telescopic bracket 473, a reset frame 474, and a first guide rod 422; the second electric push rod 472 is vertically fixed on the top of the rotary driver 3 via the second mounting bracket 471, located directly above the traction rod 41, with the drive end of the second electric push rod 472 vertically downward; the telescopic bracket 473 is horizontally fixed on the drive end of the second electric push rod 472, and two second guide rods 475 are also vertically arranged on the upper surface of the telescopic bracket 473, with the rod portion of the second guide rod 475 passing through the second mounting bracket 471 and slidingly engaging with the second mounting bracket 471; the reset frame 474 is vertically fixed on the lower surface of the telescopic bracket 473 and centrally fitted onto the outside of the traction rod 41; the rotating touch ring 476 is coaxially rotatably disposed at the connection between the traction rod 41 and the connecting shaft 42, with the side wall of the rotating touch ring 476 abutting against the inner wall of the reset frame 474.

[0063] In operation, when eccentric adjustment of the traction rod 41 is required, the equipment first determines the position of the connecting shaft 42 based on the detection results of the infrared detection element 46, i.e., whether the current fixed limit block is directly above or below, thereby instructing the second electric push rod 472 to perform a series of subsequent operations. When the fixed limit block is below the connecting shaft 42, the output shaft of the second electric push rod 472 should be driven to extend, thereby simultaneously driving the reset frame 474 to be vertically close to the traction rod. At this time, when the traction rod 41 is subjected to external pressure, it moves radially downward, thereby moving away from the axis of the connecting shaft 42. This widens the feed gap, making it easier for workers to introduce the end of the rolled material into the feed gap. Since the rotating touch ring 476 is coaxially rotatably arranged at the connection between the traction rod 41 and the connection, it can effectively avoid direct contact between the traction rod 41 and the traction rod 41 when applying pressure, thus avoiding technical problems such as difficulty in applying pressure or bending of the traction rod 41.

[0064] See Figure 9 As shown: The reset frame 474 includes a first V-shaped frame 4741, a second V-shaped frame 4742, and a connecting strip 4743; the first V-shaped frame 4741 and the second V-shaped frame 4742 are arranged opposite to each other, and the first V-shaped frame 4741 and the second V-shaped frame 4742 are fixedly connected by two sets of parallel connecting strips 4743 to form a rhombus frame.

[0065] In the working state, the gap between the two sets of connecting strips 4743 is greater than the diameter of the rotating touch ring 476. Since the first V-shaped frame 4741 and the second V-shaped frame 4742 are connected and fixed by two sets of parallel connecting strips 4743, the upper and lower ends of the connecting strips 4743 form V-shaped bayonets. At this time, the reset frame 474 can be limited and guided by the first V-shaped frame 4741 and the second V-shaped frame 4742 respectively when it moves vertically downward or upward under the drive of the second electric push rod 472, so that the rotating touch ring 476 under pressure is adjusted to be in a vertically rising or falling posture.

[0066] See Figures 7 to 9 As shown: The infrared detection element 46 includes an infrared transmitter 461, a first infrared receiver 462, a second infrared receiver 463, and a mounting bracket 464; the infrared transmitter 461 is vertically fixed on the second mounting bracket 471 via the mounting bracket 464 and passes through the second mounting bracket 471, facing the connecting shaft 42; the first infrared receiver 462 is embedded in the side wall of the connecting shaft 42 and is located near the short side of the slide groove 421, and is located directly below the infrared transmitter 461; the second infrared receiver 463 is embedded in the connecting shaft 42 on the other side opposite to the first infrared receiver 462.

[0067] The first infrared receiver 462 and the second infrared receiver 463 are both embedded in the side wall of the connecting shaft 42 and are respectively located near the two short ends of the slide groove 421. The first infrared receiver 462 is located near the end with the fixed limiting post 44, and the second infrared receiver 463 is located near the end with the spring 45. In the working state, when the roll material is rolled into a roll or before it is rolled into a roll by the cooperation of the two sets of traction rods 41, the connecting shaft 42 will drive the slide groove 421 to adjust to a vertical state with the cooperation of the infrared detection element 46 and the rotary driver 3. The specific rotation stop point is detected and controlled by the infrared transmitter 461. The infrared transmitter 461 detects the first infrared receiver 462 or the second infrared receiver 463, and after detecting the infrared receiver, it sends a control signal to the rotary driver 3, and the controller stops the micro-rotation adjustment.

[0068] See Figure 10 As shown: Auxiliary module 5 includes a sliding frame 51, a bearing 52, and a follower ring 53; the sliding frame 51 is vertically positioned across two sets of first slide rails 22 and can slide back and forth along the long side of the first slide rails 22; the top surface of the sliding frame 51 is also provided with a through hole 511 for the traction rod 41 to pass through; the follower ring 53 is rotatably mounted on one side of the top of the sliding frame 51 via the bearing 52 and is coaxial with the through hole 511; the diameter of the follower ring 53 is larger than the diameter of the current roll material after it is rolled up; the follower ring 53 is used to guide the roll material during the rolling process.

[0069] In operation, to ensure that both ends of the roll remain consistent during winding, and because the follower ring 53 is rotatably mounted on the side of the sliding frame 51 near the middle via the bearing 52, when the roll is wound by the traction rod 41, the follower rings 53 in the two sets of auxiliary modules 5 can fit tightly against both ends of the roll, guiding it flush and rotating synchronously with the roll. Furthermore, when it is necessary to unwind the rolled roll, the non-follower rings 53 located at both ends of the roll can act as blocking rings, thereby preventing deformation of the roll axis during the pulling of the traction rod 41.

[0070] See Figure 10 As shown: A calibration disc 54 is coaxially embedded on one side of the follower ring 53 near the middle of the frame 1. The calibration disc 54 is funnel-shaped. The large opening end of the calibration disc 54 faces the middle of the frame 1, and the small opening end of the calibration disc 54 faces the end of the frame 1. The diameter of the small opening end of the calibration disc 54 is larger than the total diameter of the two traction rods 41.

[0071] In operation, the large opening of the calibration disc 54 facing the middle of the frame 1 effectively guides the other traction rod 41 into the calibration disc 54, further limiting the traction rod 41 at the end of the coil material. This ensures that the two traction rods 41 have a strong clamping force on the coil material end, while also ensuring the stability of the two traction rods 41 during winding. Since the inner diameter of the small opening of the calibration disc 54 is slightly larger than the total diameter of the two sets of traction rods 41, when both sets of traction rods 41 are placed inside the small opening, the inner diameter of the small opening can be used to limit and support the traction rods 41 and assist in clamping.

[0072] See Figure 10 As shown: The sliding frame 51 is slidably engaged with the first slide rail 22 by two sets of second sliders 55 fixedly arranged opposite each other at the bottom, and each of the two second sliders 55 is also screwed with a locking knob 56 on one side.

[0073] In operation, when it is necessary to lock and fix the sliding frame 51 adjusted to the required position, the operator only needs to turn the locking knob 56 to lock the current slider at the current first slide rail 22; the two sets of sliding frames 51 can also be synchronously controlled by the bidirectional screw slide table 57 horizontally set in the middle of the frame 1, which can be determined according to the actual situation.

[0074] See Figure 4 As shown: The rotary driver 3 is a stepper motor.

[0075] In operation, the stepper motor is existing technology and will not be described in detail here. By using the stepper motor to control the elastic traction module 4, the rotation angle and number of turns of the traction rod 41 can be precisely controlled, thereby ensuring the consistency of each batch of formed roll material; and facilitating the control of the connecting shaft 42 to the required angle before loading and unloading; thus improving production efficiency.

[0076] This invention can not only perform coreless winding of roll materials of different materials, but also perform air winding without the need for external equipment guidance; it has good winding effect and fast speed; it reduces the cost of using cores, reduces the process cost of manufacturing and recycling cores, and reduces manual core loading and other operations.

[0077] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A coreless winding mechanism characterized by comprising: The device comprises a rack, a guide module, a rotary driver, an elastic traction module and an auxiliary module. The guide module is arranged on the rack in parallel along the long side direction of the rack. The rotary driver is arranged on the guide module through a sliding seat, and two groups of rotary drivers are oppositely arranged on the guide module and can approach or move away from each other under the driving guidance of the guide module. The elastic traction module is coaxially arranged on the output shaft of the rotary driver, and a traction rod eccentric to the output shaft of the rotary driver is arranged in the elastic traction module. The elastic traction module can traction the coiled material through the traction rod. The auxiliary module is arranged in two groups, and the two groups of auxiliary modules are oppositely arranged on the guide module in a vertical state and can move away from or close to each other along the guide direction of the guide module, so as to guide the coiled material to be coiled and assist the coiled material to be unwound. The elastic traction module comprises a traction rod, a connecting shaft, a first sliding block, a fixed limiting column, a spring, an infrared detection element and a traction rod reset element. The connecting shaft is coaxially fixedly arranged on the output end of the rotary driver, and a sliding groove and a first guide rod vertically arranged in the sliding groove are further arranged on the surface of the connecting shaft away from the rotary driver. The traction rod is slidably arranged in the sliding groove and is slidably connected with the first guide rod. In the non-working state, the traction rod is coaxially arranged with the connecting shaft. The spring is coaxially sleeved and arranged outside the first guide rod and close to the lower end of the first guide rod, and the two ends of the spring are respectively abutted with the first sliding block and the side wall of the sliding groove. The fixed limiting column is coaxially sleeved and arranged outside the first guide rod and close to the upper end of the first guide rod, and the two ends of the fixed limiting column are respectively abutted and connected with the side wall of the sliding groove and the side wall of the first sliding block. The infrared detection element is embeddedly arranged on the side wall of the connecting shaft and is arranged in two groups equidistantly along the axis of the connecting shaft, and the two groups of infrared detection elements are oppositely arranged and respectively close to the two ends of the short side of the sliding groove. The reset element is vertically fixedly arranged on the top of the rotary driver through a second mounting bracket and is arranged towards the driving end of the rotary driver, so as to drive the traction rod to deviate and reset. The reset element comprises a second electric push rod, a second mounting bracket, an extension frame, a reset frame and a first guide rod. The second electric push rod is vertically fixedly arranged on the top of the rotary driver through the second mounting bracket and is located above the traction rod, and the driving end of the second electric push rod is vertically arranged downwards. The extension frame is fixedly arranged on the driving end of the second electric push rod in a horizontal state, and two second guide rods are vertically arranged on the upper surface of the extension frame.

2. A coreless winding mechanism according to claim 1, wherein The reset frame is fixedly arranged on the lower surface of the extension frame in a vertical state and is coaxially sleeved and arranged outside the traction rod. A rotating contact ring is coaxially arranged at the connection between the traction rod and the connecting shaft, and the side wall of the rotating contact ring is abutted and connected with the inner wall of the reset frame. The guide module comprises a first sliding rail, a first mounting bracket and a first electric push rod. The first sliding rail is arranged in two groups, and the two groups of first sliding rails are arranged on the rack in parallel along the long side direction of the rack and are respectively arranged close to the two sides of the long side direction of the rack. The sliding seats are arranged across between the two groups of first slide rails and can reciprocate along the length direction of the first slide rails, and the sliding seats are arranged in two groups and close to both ends of the frame to horizontally support the rotary driver; The first electric push rods are arranged in two groups and are fixedly arranged at both ends of the frame through the first mounting frames and are fixedly connected with the sliding seats.

3. A coreless winding mechanism according to claim 1, wherein The reset frame comprises a first V-shaped frame, a second V-shaped frame and connecting strips; the first V-shaped frame and the second V-shaped frame are oppositely arranged, and the first V-shaped frame and the second V-shaped frame are fixedly connected through two groups of connecting strips arranged in parallel to each other to form a rhombic frame.

4. A coreless winding mechanism according to claim 1, wherein The infrared detection element comprises an infrared emitter, a first infrared receiver, a second infrared receiver and a fixing frame; The infrared emitter is fixedly arranged on the second mounting frame in a vertical state and passes through the second mounting frame to face the connecting shaft; The first infrared receiver is embeddedly mounted on the side wall of the connecting shaft close to one end in the short direction of the sliding groove, and the first infrared receiver is arranged below the infrared emitter; The second infrared receiver is oppositely arranged on the other side of the connecting shaft relative to the first infrared receiver.

5. A coreless winding mechanism according to claim 4, wherein The auxiliary module comprises a sliding frame, a bearing and a follower ring; The sliding frame is arranged across between the two groups of first slide rails in a vertical state and can reciprocate along the length direction of the first slide rails; a through hole for the traction rod to pass through is further formed in the top surface of the sliding frame; The follower ring is rotatably arranged on one side of the top of the sliding frame through the bearing and is coaxially arranged with the through hole; the diameter of the follower ring is greater than the diameter of the rolled material after rolling; the follower ring is used to guide the rolling of the material.

6. A coreless winding mechanism according to claim 5, wherein The follower ring is coaxially embeddedly mounted with a correction disc on one side close to the middle of the frame; the correction disc is arranged in a funnel shape; the large opening end of the correction disc faces the middle of the frame, and the small opening end of the correction disc faces the end of the frame; the diameter of the small opening end of the correction disc is greater than the total diameter of the two traction rods.

7. A coreless winding mechanism according to claim 6, wherein The sliding frame is slidably connected with the first slide rails through the two groups of second sliding blocks fixedly arranged on the bottom, and the two groups of second sliding blocks are further screw-connected with locking knobs on one side.

8. A coreless winding mechanism according to claim 1, wherein The rotary driver is a stepping motor.

Images