Constant-tangent-point and constant-pressure ironing device

Abstract

A constant-tangent-point and constant-pressure ironing device relates to the technical field of aluminum foil rolling equipment and comprises a winding drum, a counterweight sliding column, an ironing roller and a rocker arm. The winding drum rotates horizontally and is used for winding aluminum foil; the counterweight sliding column can slide up and down in the vertical direction; the ironing roller is horizontally connected to the lower end of the counterweight sliding column and is used for downwards abutting against the aluminum foil wound on the winding drum; the axes of the winding drum and the ironing roller are positioned on the extension line of the axis of the counterweight sliding column when being observed from the end face directions of the winding drum and the ironing roller; the rotating axis of the rocker arm coincides with the rotating axis of the winding drum, and a wrap angle roller is installed at the free end of the rocker arm. In the winding process, the rocker arm rotates, the aluminum foil is guided through the wrap angle roller, the aluminum foil is wound on the winding drum in a horizontal state, and a tangent point is formed at the position in contact with the ironing roller. The ironing device can ensure that the pressure applied to the aluminum coiled material by the ironing roller is constant, can also ensure that the direction of the pressure always points to the center of the winding drum, and eliminates the adverse effect of component force on winding tension and rolling tension.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum foil rolling equipment, in particular to a constant-tangent-point and constant-pressure ironing device. Background Art

[0002] The production of pharmaceutical foil and aluminum foil for soft-pack batteries requires a complete set of aluminum foil rolling equipment. The existing complete sets of aluminum foil rolling equipment are equipped with a coiler, guide rollers and ironing devices. Figure 1 The ironing device is arranged on the left side of the coiler, and the angle roller 7 is arranged on the right side of the coiler. The rolled aluminum foil 8 is guided by the angle roller 7 and then wound on the reel 1 of the coiler, and the foil becomes larger and larger as it is rolled. The ironing device is mainly composed of a rocker arm, an ironing roller 2 and three oil cylinders. The ironing roller has three functions: first, it applies a constant pressure to the aluminum coil to make the aluminum coil flat and have a relatively constant winding tension; second, as the diameter of the aluminum coil increases, it is necessary to ensure that the contact point between the ironing roller and the aluminum coil is always near the tangent point to squeeze out the air and eliminate the air gap; third, it presses the belt head at the end of winding to prevent the belt from loosening. However, the shortcomings of the existing ironing device are also obvious, which are mainly reflected in the following two points: 1. The existing ironing roller device adopts a pressure closed-loop control mode, which not only requires precise and expensive sensors and complex control systems, but also requires mathematical modeling to determine the pressure parameter table. Personnel without in-depth training cannot operate it correctly.

[0003] 2. The pressure N applied by the ironing roller to the aluminum coil is provided by the oil cylinder. Due to the limitation of the overall structure, the direction of the pressure N cannot always point to the center of the roll during the winding process, resulting in the generation of a tangential component force N t and radial force N r , radial force N r The change of will affect the winding tension of the aluminum foil after winding, and the tangential force N t The change of will affect the rolling tension of the aluminum foil before winding. As is known to all, it is very important to keep the tension constant during the rolling process, which directly affects the rolling quality of the aluminum foil. Summary of the invention

[0004] In order to overcome the shortcomings of the background technology, the present invention discloses a constant-tangent-point constant-pressure ironing device, the purpose of which is: 1. Simplify the structure and control method of the ironing device to make it easy to operate; 2. Eliminate the adverse effects of oblique pressure on winding tension and rolling tension.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A constant-tangent-point constant-pressure ironing device, comprising: Roller, rotating horizontally, for rolling up aluminum foil; The counterweight slide column can slide up and down in the vertical direction; The ironing roller is horizontally connected to the lower end of the counterweight slide column and is used to press the aluminum foil rolled on the reel downward; when viewed from the end face direction of the reel and the ironing roller, the axis of the reel and the ironing roller is located on the extension line of the axis of the counterweight slide column; The rocker arm has a rotation axis that coincides with the rotation axis of the reel, and a wrapping roller is installed at the free end of the rocker arm; during the winding process, the rocker arm rotates, and the aluminum foil is guided by the wrapping roller, so that the aluminum foil is rolled on the reel in a horizontal state, and a tangent point is formed at the position where it contacts the ironing roller.

[0006] To further improve the technical solution, the aluminum foil is wound around the lower part of the angle roller, and the angle between the rocker arm and the counterweight slide column is θ, then Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

[0007] To further improve the technical solution, the counterweight sliding column cooperates with the fixed sliding sleeve and can slide up and down in the vertical direction.

[0008] To further improve the technical solution, a counterweight block is installed on the top of the counterweight sliding column.

[0009] To further improve the technical solution, there are two counterweight slide columns, which are respectively arranged at the two ends of the ironing roller.

[0010] To further improve the technical solution, the aluminum foil is wound on the upper part of the angle roller, and the angle between the rocker arm and the counterweight slide column is θ, then Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

[0011] After implementing the above technical solution, compared with the background technology, the beneficial effects produced by the present invention are: 1. The structure and control method of the ironing device are simplified, making the ironing device easy to operate; 2. It can ensure that the pressure exerted by the ironing roller on the aluminum coil is constant and not affected by external factors; 3. It can ensure that the ironing roller is always pressed on the tangent point of the aluminum coil, squeezing out the air to eliminate the air gap; 4. It can ensure that the direction in which the ironing roller applies pressure to the aluminum coil always points to the center of the reel, and no force component will be generated, thereby eliminating the adverse effects of the force component on the winding tension and rolling tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 Shown is a schematic structural diagram of an existing ironing device.

[0013] Attached Figure 2What is shown is a schematic diagram of the structure of the ironing device in Example 1.

[0014] Attached Figure 3 The attached Figure 2 Side view of.

[0015] Attached Figure 4 The attached Figure 2 Schematic diagram of the movement.

[0016] Attached Figure 5 Shown is a schematic structural diagram of the ironing device before rolling.

[0017] Attached Figure 6 Shown is a schematic structural diagram of the ironing device after winding.

[0018] Attached Figure 7 What is shown is a schematic structural diagram of the ironing device in Example 2.

[0019] In the attached figure: 1. reel; 2. ironing roller; 3. counterweight slide column; 4. sliding sleeve; 5. counterweight block; 6. rocker arm; 7. corner roller; 8. aluminum foil. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that in the description of the present invention, the terms "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0021] Example 1: Refer to the attached Figure 2 The constant tangent point and constant pressure ironing device mainly comprises a reel 1, a counterweight slide column 3, an ironing roller 2 and a rocker arm 6. The structure and function thereof are described in detail below.

[0022] The reel 1 is the core component of the coiler. The reel 1 can rotate horizontally to roll the rolled aluminum foil 8 into a coil. The aluminum foil 8 rolling production line adopts the traditional mode of horizontal in and horizontal out, and the coiler is arranged at the end of the aluminum foil 8 rolling production line. In this embodiment, the horizontal height of the rolling line aluminum foil 8 is greater than the height of the center of the reel 1, and the aluminum foil 8 is wound around the lower part of the angle roller 7.

[0023] See attached Figure 3 The counterweight slide column 3 is a pair and is arranged above the reel 1. The counterweight slide column 3 cooperates with the fixed sliding sleeve 4 and can slide up and down in the vertical direction. A counterweight block 5 is installed on the top of the counterweight slide column 3.

[0024] The ironing roller 2 is horizontally connected to the lower end of a pair of counterweight slides 3, and relies on the weight of the counterweight slides 3, the counterweight blocks 5 and its own weight to press down the aluminum foil 8 rolled on the reel 1, exerting pressure on it. In other words, the pressure exerted by the ironing roller 2 on the aluminum coil is the weight of the counterweight slide 3, the counterweight block 5 and the ironing roller 2. Compared with the force applied by the oil cylinder, the pressure exerted on the aluminum coil by its own weight is constant and is not affected by factors such as oil pressure. In addition, by increasing or decreasing the number of counterweight blocks 5, the pressure exerted by the ironing roller 2 on the aluminum coil can be accurately adjusted to ensure that the aluminum coil has a relatively constant winding tension.

[0025] Observing from the end face direction of the reel 1 and the ironing roller 2, the axis of the reel 1 and the ironing roller 2 is located on the extension line of the axis of the counterweight slide column 3. In other words, the direction in which the ironing roller 2 applies pressure to the aluminum coil is always toward the center of the reel 1, and no component force is generated, thereby eliminating the adverse effects of the component force on the winding tension and rolling tension.

[0026] The rocker arm 6 is coaxially mounted with the reel 1, and the rotation axis of the rocker arm 6 coincides with the rotation axis of the reel 1. A wrapping roller 7 is mounted at the free end of the rocker arm 6. During the winding process, the rocker arm 6 rotates, and the aluminum foil 8 is guided by the wrapping roller 7, so that the aluminum foil 8 is rolled on the reel 1 in a horizontal state, and a tangent point is formed at the position where it contacts the ironing roller 2.

[0027] See attached Figure 4 Attached Figure 3 A is the tangent point between the aluminum foil and the coil, B is the center of the roll, C is the intersection point between the aluminum foil and the rocker arm, D is the center of the angle roller, and E is the tangent point between the aluminum foil and the angle roller. Since triangle ABC and triangle CDE are similar triangles, the sides of triangle ABC and triangle CDE have a proportional relationship. Assuming that the angle between the rocker arm 6 and the counterweight slide column 3 is θ, then Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

[0028] See attached Figure 5 , Attachment Figure 2 and attached Figure 6 The rolling speed of the aluminum foil is constant during operation. As the roll 1 rotates, the diameter of the aluminum coil begins to increase. Although the angular velocity ω of the roll 1 decreases as the radius of the aluminum coil increases, the angular velocity ω of the roll 1 is pre-set according to a strict mathematical formula and is known. At any time, the radius R of the aluminum coil can be obtained by the formula R=V / ω. Therefore, according to the formula The rotation position of the rocker arm 6 at any time can be obtained, which is not affected by the starting position of the rocker arm 6. In the prior art, when the rolling speed V of the aluminum foil and the current angular velocity ω of the roll are known, the rocker arm 6 is rotated to θ by a servo motor, so that the aluminum foil 8 is always rolled on the roll 1 in a horizontal state, and a tangent point is formed at the position where it contacts the ironing roller 2. In this way, it can be ensured that the ironing roller 2 is always pressed on the tangent point, squeezing out the air between the aluminum foil 8 and the roll, and achieving the purpose of eliminating the air gap.

[0029] Example 2: Refer to the attached Figure 7 The difference between this embodiment and the first embodiment is that the horizontal height of the rolling line aluminum foil 8 is lower than the height of the center of the reel 1 , and the aluminum foil 8 is wound on the upper part of the angle roll 7 .

[0030] Specifically, attached Figure 7 In is the tangent point between the aluminum foil and the coil, B is the center of the roll, D is the center of the angle roller, and E is the tangent point between the aluminum foil and the angle roller. Assuming that the angle between the rocker arm 6 and the counterweight slide column 3 is θ, then Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

[0031] Obviously, such an arrangement can also make the aluminum foil 8 always rolled on the reel 1 in a horizontal state, and form a tangent point at the position of contact with the ironing roller 2, thereby squeezing out the air between the aluminum foil 8 and the coil, thereby achieving the purpose of eliminating the air gap.

[0032] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A constant-tangent-point constant-pressure ironing device, characterized in that: include: Roller, rotating horizontally, for rolling up aluminum foil; The counterweight slide column can slide up and down in the vertical direction; The ironing roller is horizontally connected to the lower end of the counterweight slide column and is used to press the aluminum foil rolled on the reel downward; when viewed from the end face direction of the reel and the ironing roller, the axis of the reel and the ironing roller is located on the extension line of the axis of the counterweight slide column; The rocker arm has a rotation axis that coincides with the rotation axis of the reel, and a wrapping roller is installed at the free end of the rocker arm; during the winding process, the rocker arm rotates, and the aluminum foil is guided by the wrapping roller, so that the aluminum foil is rolled on the reel in a horizontal state, and a tangent point is formed at the position where it contacts the ironing roller.

2. A constant-tangent-point constant-pressure ironing device as claimed in claim 1, characterized in that: The aluminum foil is wound around the lower part of the angle roller. Assuming the angle between the rocker arm and the counterweight slide column is θ, we have Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

3. A constant-tangent-point constant-pressure ironing device as claimed in claim 1, characterized in that: The counterweight slide column cooperates with the fixed slide sleeve and can slide up and down in the vertical direction.

4. A constant-tangent-point constant-pressure ironing device as claimed in claim 1, characterized in that: A counterweight block is installed on the top of the counterweight sliding column.

5. A constant-tangent-point constant-pressure ironing device as claimed in claim 1, characterized in that: There are two counterweight slide columns, which are respectively arranged at the two ends of the ironing roller.

6. A constant-tangent-point constant-pressure ironing device as claimed in claim 1, characterized in that: The aluminum foil is wound on the upper part of the angle roller. Assuming the angle between the rocker arm and the counterweight slide column is θ, we have Where V is the rolling speed of the aluminum foil, ω is the current angular velocity of the roll, r is the radius of the wrap roller, and L is the length of the rocker arm.

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