Automatic roll changing and rolling mechanism

Abstract

The utility model relates to the technical field of winding equipment, in particular to an automatic roll changing winding mechanism, which is used for winding a material belt into a roll material and comprises a rack and a feeding device arranged on the rack, and the rack is further provided with a winding device, a cutting device and a roll changing device. The material belt is sequentially moved to the winding device along the feeding device and the reel changing device to be wound, the winding device comprises a first winding roller and a second winding roller, and the reel changing device has a first state of switching the material belt from the first winding roller to the second winding roller. When the roll changing device is in the first state or the second state, the material belt is switched to the first winding roller from the second winding roller and is in the second state, and when the roll changing device is in the first state or the second state, the material belt makes contact with the cutting device to be cut, the roll changing device is matched with the cutting device, so that the material belt is circularly and alternately wound by the first winding roller or the second winding roller; therefore, automatic roll changing can be achieved without shutdown, the rolling efficiency is high, workers do not need to watch all the time, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of winding equipment, in particular to an automatic roll-changing winding mechanism. Background Art

[0002] In the winding part of a coil material processing production line, raw materials are wound into coil materials mechanically, which are widely used in paper roll, cloth roll, plastic roll, and metal coil processing production lines. They are designed diversely according to actual process requirements. Common ones include simple winding machines and hydraulic winding machines. Generally, winding machines have strict requirements for the inner diameter, outer diameter, thickness, and width of the coil material.

[0003] Especially for the winding machine used for plastic rolls, the prior art usually adopts a turntable-type winding mechanism. When a winding roll reaches the maximum winding limit, it is necessary to manually cut the material tape and then wind the material tape around another winding roll. The roll-changing process needs to stop the machine and cannot be automatically switched for winding. The winding efficiency is very low, and each winding machine needs a worker to watch it all the time, resulting in high labor costs. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and provide an automatic roll-changing winding mechanism. The utility model realizes non-stop automatic roll-changing through the cooperation of a roll-changing device and a cutting device, so that the material tape is alternately wound by the first winding roll or the second winding roll, with high winding efficiency and no need for a worker to watch all the time, reducing labor costs.

[0005] The technical solution adopted by the utility model is as follows: an automatic roll-changing winding mechanism for winding a material tape into a coil material, including a frame and a feeding device arranged on the frame. A winding device, a cutting device, and a roll-changing device are also arranged on the frame. The material tape moves along the feeding device and the roll-changing device in sequence to the winding device for winding. The winding device includes a first winding roll and a second winding roll. The roll-changing device has a first state of switching the material tape from the first winding roll to the second winding roll and a second state of switching the material tape from the second winding roll to the first winding roll. When the roll-changing device is in the first state or the second state, the material tape contacts the cutting device for cutting.

[0006] The roll-changing device includes a first cylinder, a first roller, a second cylinder, and a second roller. The first cylinder drives the first roller to expand and contract, and the second cylinder drives the second roller to expand and contract. When the roll-changing device is in the first state, the first cylinder drives the first roller to expand and contract to drive the material tape to abut against the second winding roll, and the material tape moves along the feeding device and the second roller to the second winding roll in sequence. When the roll-changing device is in the second state, the second cylinder drives the second roller to expand and contract to drive the material tape to abut against the first winding roll, and the material tape moves along the feeding device and the first roller to the first winding roll in sequence.

[0007] The rewinding device further has a third state in which both the first roller and the second roller are retracted to their original positions, a fourth state in which the first roller is in contact with the strip on the second winding roller, and a fifth state in which the second roller is in contact with the strip on the first winding roller.

[0008] The first winding roller and the second winding roller are arranged vertically with their axes in the same vertical plane. The first cylinder and the second cylinder are respectively located on the side positions corresponding to the first winding roller and the second winding roller. The axes of the first cylinder and the second cylinder intersect perpendicularly, and the axes of the first cylinder and the second cylinder form acute angles with the horizontal plane. The cutting device is located on the side position of the winding device and between the first winding roller and the second winding roller.

[0009] The cutting device includes a cutting knife and at least two cross bars. The two cross bars are symmetrically arranged on the upper and lower sides of the cutting knife. When the cutting device performs cutting, the cutting knife reciprocates along the axial direction of the cross bar.

[0010] A reversing wheel and a guiding wheel are further provided on the frame. The strip moves to the winding device along the feeding device, the reversing wheel, the guiding wheel and the rewinding device in sequence for winding.

[0011] The feeding device includes a tightening assembly and a plurality of transmission wheels arranged alternately. The strip moves and is tightened through the tightening assembly and the plurality of transmission wheels.

[0012] The outer surfaces of the first winding roller and the second winding roller are both made of adhesive material.

[0013] The beneficial effects of the present utility model are as follows: The present utility model performs rewinding by cooperating the rewinding device with the cutting device. The rewinding device switches back and forth between the first state and the second state, so that the strip is alternately wound on the first winding roller or the second winding roller in a cycle. When the rewinding device switches states, the strip will contact the cutting device for automatic cutting, thus realizing automatic rewinding without stopping the machine, with high winding efficiency. When the first winding roller is winding, the coil on the second winding roller is collected, and conversely, when the second winding roller is winding, the coil on the first winding roller is collected. Since the winding process takes a long time, it is not necessary for workers to watch all the time. Only the material needs to be collected before the rewinding operation, which reduces the labor cost. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present invention.

[0015] Figure 1 It is a schematic structural diagram of the automatic roll-changing and winding mechanism of the present invention;

[0016] Figure 2 It is a schematic structural diagram of removing the tape of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the roll-changing device of the present invention in the second state;

[0018] Figure 4 It is a schematic structural diagram after cutting by the cutting device of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the roll-changing device of the present invention in the third state;

[0020] Figure 6 It is a schematic structural diagram of the roll-changing device of the present invention in the first state;

[0021] In the figure, 1 - tape, 2 - frame, 3 - first winding roller, 4 - second winding roller, 5 - first cylinder, 6 - first roller, 7 - second cylinder, 8 - second roller, 9 - cutting knife, 10 - cross bar, 11 - reversing wheel, 12 - guide wheel, 13 - tightening assembly, 14 - conveyor wheel, 15 - feeding device, 16 - winding device, 17 - cutting device, 18 - roll-changing device. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings.

[0023] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present invention. This will not be elaborated in the subsequent embodiments one by one.

[0024] The directional and positional terms mentioned in this utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only with reference to the directions or positions in the attached drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, rather than limiting the protection scope of this utility model.

[0025] As Figures 1 to 6 shown, it is an embodiment of this utility model, an automatic roll-changing and winding mechanism, which is used to wind the strip 1 into a coil. It includes a frame 2 and a feeding device 15 arranged on the frame 2. A winding device 16, a cutting device 17 and a roll-changing device 18 are also arranged on the frame 2. The strip 1 moves along the feeding device 15 and the roll-changing device 18 in sequence and then is wound by the winding device 16. The winding device 16 includes a first winding roller 3 and a second winding roller 4. The roll-changing device 18 has a first state of switching the strip 1 from the first winding roller 3 to the second winding roller 4, and a second state of switching the strip 1 from the second winding roller 4 to the first winding roller 3. When the roll-changing device 18 is in the first state or the second state, the strip 1 contacts the cutting device 17 for cutting.

[0026] The beneficial effects of such a setting are as follows. In this utility model, the roll-changing device cooperates with the cutting device for roll-changing. The roll-changing device switches back and forth between the first state and the second state, so that the strip is alternately wound by the first winding roller or the second winding roller in a cycle. When the roll-changing device switches states, the strip will contact the cutting device for automatic cutting, thus realizing automatic roll-changing without stopping the machine, with high winding efficiency. When winding on the first winding roller, the coil on the second winding roller is collected, and vice versa. Because the winding process takes a long time, it is not necessary for workers to watch all the time. Only the material needs to be collected before the roll-changing operation, which reduces the labor cost.

[0027] Furthermore, the roll-changing device 18 includes a first air cylinder 5, a first roller 6, a second air cylinder 7 and a second roller 8. The first air cylinder 5 drives the first roller 6 to expand and contract, and the second air cylinder 7 drives the second roller 8 to expand and contract. When the roll-changing device 18 is in the first state, the first air cylinder 5 drives the first roller 6 to expand and contract to drive the strip 1 to abut against the second winding roller 4, and the strip 1 moves along the feeding device 15 and the second roller 8 to the second winding roller 4 in sequence. When the roll-changing device 18 is in the second state, the second air cylinder 7 drives the second roller 8 to expand and contract to drive the strip 1 to abut against the first winding roller 3, and the strip 1 moves along the feeding device 15 and the first roller 6 to the first winding roller 3 in sequence.

[0028] The beneficial effects of such a setting are as follows. The first roller is driven by the first cylinder to complete the roll-changing action in the first state, and the second roller is driven by the second cylinder to complete the roll-changing action in the second state. There is no need for manual switching. It only requires driving the strip from one winding roller to the other, and then cooperating with the cutting device to automatically cut, thus realizing automatic roll-changing. The roll-changing structure is concise and the operation is stable.

[0029] Further setting: The roll-changing device 18 further has a third state in which both the first roller 6 and the second roller 8 are retracted to their original positions, a fourth state in which the first roller 6 remains in contact with the strip 1 on the second winding roller 4, and a fifth state in which the second roller 8 remains in contact with the strip 1 on the first winding roller 3.

[0030] The beneficial effects of such a setting are as follows. After the roll-changing device completes the roll-changing action in the first state, it can be switched to the third state, and the second winding roller winds by itself, or switched to the fourth state, where the first roller remains in contact with the wound material on the winding roller. As the diameter of the wound material slowly increases, the first roller slowly retracts to its original position, which can help the wound material on the second winding roller to be wound tighter and the winding effect is better. Conversely, after the roll-changing device completes the roll-changing action in the first state, it can be switched to the third state or the fifth state to help the wound material on the first winding roller to be wound tighter.

[0031] Further setting: The first winding roller 3 and the second winding roller 4 are arranged vertically and their axes are located in the same vertical plane. The first cylinder 5 and the second cylinder 7 are respectively located on the side positions corresponding to the first winding roller 3 and the second winding roller 4. The axes of the first cylinder 5 and the second cylinder 7 intersect vertically, and the axes of the first cylinder 5 and the second cylinder 7 form acute angles with the horizontal plane. The cutting device 17 is located on the side position of the winding device 16 and is located between the first winding roller 3 and the second winding roller 4.

[0032] The beneficial effects of such a setting are as follows. In this embodiment, the axes of the first cylinder and the second cylinder form a 45-degree angle with the horizontal plane. Selecting the installation position of a 45-degree angle has a more stable and reasonable telescopic route. The compact and concise positional relationship ensures the stable operation of automatic roll-changing and the stable winding of the winding device. When the roll-changing device is in the fourth state or the fifth state, the first roller or the second roller can stably contact the wound material without deviation. During winding, the cutting device will not contact the strip, and only when changing the roll will the strip contact the cutting device, avoiding incorrect cutting of the strip.

[0033] Further setting: The cutting device 17 includes a cutting knife 9 and at least two cross bars 10. The two cross bars 10 are symmetrically arranged on the upper and lower sides of the cutting knife 9. When the cutting device 17 performs cutting, the cutting knife 9 reciprocally slides along the axial direction of the cross bar 10.

[0034] The beneficial effects of such a setting are as follows. Before the cutting action, the strip will abut against the two cross bars, helping the cutting knife that reciprocates axially along the cross bars to cut the strip smoothly, making the edges of the coiled material smoother and ensuring better quality of the coiled material product.

[0035] Further setting: A reversing wheel 11 and a guiding wheel 12 are also provided on the frame 2. The strip 1 moves to the winding device 16 for winding through the feeding device 15, the reversing wheel 11, the guiding wheel 12 and the rewinding device 18 in sequence.

[0036] The beneficial effects of such a setting are as follows. The conveying direction of the strip is guided by the reversing wheel and the guiding wheel installed between the first cylinder and the second cylinder, ensuring that the strip passes through the position between the first roller and the second roller, making the structure more compact and improving the space utilization rate.

[0037] Further setting: The feeding device 15 includes a tightening assembly 13 and a plurality of alternately arranged conveying wheels 14. The strip 1 moves and is tightened through the tightening assembly 13 and the plurality of conveying wheels 14.

[0038] The beneficial effects of such a setting are as follows. The strip is conveyed and tightened by the tightening assembly in cooperation with the plurality of alternately arranged conveying wheels, making the conveyance of the strip smoother and flatter.

[0039] Further setting: The outer surfaces of the first winding roller 3 and the second winding roller 4 are both made of adhesive material.

[0040] The beneficial effects of such a setting are as follows. When the strip is driven by the first roller or the second roller to abut against the second winding roller and the first winding roller, it can directly adhere to the winding roller, helping the starting end of the coiled material to be flat, avoiding the strip from folding on the winding roller, and also improving the winding efficiency.

[0041] The above-disclosed are only the preferred embodiments of the present utility model. Certainly, the scope of rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. An automatic roll-changing and reeling mechanism, used to reel the material strip (1) into a coil, characterized in that: The invention comprises a frame (2) and a feeding device (15) arranged on the frame (2); the frame (2) is also provided with a winding device (16), a cutting device (17) and a roll-changing device (18); the material strip (1) moves along the feeding device (15) and the roll-changing device (18) to the winding device (16) for winding; the winding device (16) comprises a first winding roller (3) and a second winding roller (4); the roll-changing device (18) has a first state for switching the material strip (1) from the first winding roller (3) to the second winding roller (4); and a second state for switching the material strip (1) from the second winding roller (4) to the first winding roller (3); when the roll-changing device (18) is in the first state or the second state, the material strip (1) contacts the cutting device (17) for cutting.

2. The automatic roll changing and winding mechanism according to claim 1 is characterized in that: The reel-changing device (18) comprises a first cylinder (5), a first roller (6), a second cylinder (7) and a second roller (8); the first cylinder (5) telescopically drives the first roller (6); the second cylinder (7) telescopically drives the second roller (8); when the reel-changing device (18) is in a first state, the first cylinder (5) telescopically drives the first roller (6) to drive the material strip (1) to abut against the second winding roller (4), and the material strip (1) moves to the second winding roller (4) along the feeding device (15) and the second roller (8) in sequence; when the reel-changing device (18) is in a second state, the second cylinder (7) telescopically drives the second roller (8) to drive the material strip (1) to abut against the first winding roller (3), and the material strip (1) moves to the first winding roller (3) in sequence along the feeding device (15) and the first roller (6).

3. The automatic roll changing and winding mechanism according to claim 2 is characterized in that: The reel changing device (18) also has a third state in which the first roller (6) and the second roller (8) are both retracted to their original positions, a fourth state in which the first roller (6) and the material strip (1) on the second winding roller (4) remain in contact with each other, and a fifth state in which the second roller (8) and the material strip (1) on the first winding roller (3) remain in contact with each other.

4. The automatic roll changing and winding mechanism according to claim 2 is characterized in that: The first winding roller (3) and the second winding roller (4) are distributed up and down and their axes are located in the same vertical plane. The first cylinder (5) and the second cylinder (7) are located at the side of the first winding roller (3) and the second winding roller (4) respectively. The axes of the first cylinder (5) and the second cylinder (7) intersect vertically, and the axes of the first cylinder (5) and the second cylinder (7) form an acute angle with the horizontal plane. The cutting device (17) is located at the side of the winding device (16) and between the first winding roller (3) and the second winding roller (4).

5. The automatic roll changing and winding mechanism according to claim 1 is characterized in that: The cutting device (17) comprises a cutting knife (9) and at least two cross bars (10), wherein the two cross bars (10) are symmetrically arranged on the upper and lower sides of the cutting knife (9), and when the cutting device (17) performs cutting, the cutting knife (9) reciprocates along the axial direction of the cross bars (10).

6. The automatic roll changing and winding mechanism according to claim 1, characterized in that: The frame (2) is also provided with a reversing wheel (11) and a guide wheel (12), and the material belt (1) moves in sequence along the feeding device (15), the reversing wheel (11), the guide wheel (12) and the roll changing device (18) to the reeling device (16) for reeling.

7. The automatic roll changing and winding mechanism according to claim 1, characterized in that: The feeding device (15) comprises a tightening assembly (13) and a plurality of staggered transmission wheels (14), and the material belt (1) is moved and tightened by the tightening assembly (13) and the plurality of transmission wheels (14).

8. The automatic roll changing and winding mechanism according to claim 1, characterized in that: The outer surfaces of the first winding roller (3) and the second winding roller (4) are both made of sticky material.

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