Hot stamping foil rewinding device

Abstract

The utility model discloses an alumite hot stamping foil rewinding device, which belongs to the technical field of printing machinery, and is characterized by comprising a rack, an unwinding roller, a rewinding roller, a first detection arm, a second detection arm, a third detection arm and a fourth detection arm, the first detection roller is installed and connected with the first detection arm and abuts against the alumite hot stamping foil on the unwinding roller; the second detection arm is hinged to the rack; the second detection roller is installed and connected with the second detection arm and abuts against the alumite hot stamping foil on the rewinding roller; the detection mechanisms are respectively arranged between the first detection arm and the rack and between the second detection arm and the rack; wherein the detection mechanism comprises a coil and a sliding block, and when the first detection arm and the second detection arm rotate, the sliding block moves on the coil. According to the rewinding device, the rotating speed of the rewinding roller can be adjusted according to the winding diameter, and adjustment of the winding speed is achieved.

Description

Technical Field

[0001] This application belongs to the technical field of printing machinery, and particularly relates to a rewinding device for hot stamping foil of anodized aluminum. Background Art

[0002] In the fierce market competition, in order to increase the added value of products and more effectively carry out packaging anti-counterfeiting, more and more packaged goods adopt hot stamping technology. Anodized aluminum is generally used in the processing of hot stamping machinery. If each strip of anodized aluminum is not recycled after hot stamping, it will cause the working site to be in a mess and result in waste of resources. Therefore, each strip of anodized aluminum needs to be recycled after hot stamping.

[0003] The existing Chinese patent with the publication number CN102248763B discloses a web-fed cold stamping printing device including an unwinding unit, a tension control unit, a gluing unit, a cold stamping unit and a winding unit.

[0004] Although the above printing device can achieve and control the skip of anodized aluminum, greatly saving anodized aluminum, during the working process, the hot stamping foil of anodized aluminum goes through unwinding and rewinding, and the winding diameter will affect its winding speed. If the rewinding roller always rotates at the same speed, it will cause the subsequent winding speed to become faster and faster. Therefore, improvements are made.

[0004] Summary of the Utility Model

[0005] The purpose of this application is to provide a rewinding device for hot stamping foil of anodized aluminum in view of the above existing technical problems, which can adjust the rotation speed of the rewinding roller according to the winding diameter of the winding, and realize the adjustment of the winding speed.

[0006] This application provides a rewinding device for hot stamping foil of anodized aluminum, including a frame, an unwinding roller and a rewinding roller, and further including:

[0007] A first detection arm, hinged to the frame;

[0008] A first detection roller, installed and connected to the first detection arm and abutted against the hot stamping foil of anodized aluminum on the unwinding roller;

[0009] A second detection arm, hinged to the frame;

[0010] A second detection roller, installed and connected to the second detection arm and abutted against the hot stamping foil of anodized aluminum on the rewinding roller;

[0010]

[0011] A detection mechanism, respectively installed between the first detection arm, the second detection arm and the frame;

[0012] Wherein, the detection mechanism includes a coil and a slider. When the first detection arm and the second detection arm rotate, the slider moves on the coil.

[0011]

[0013] The hot stamping foil made of electro - aluminum is unrolled from the unwinding roller, passes through the hot stamping process, and then is rewound through the rewinding roller. However, the adhesion of the rewound hot stamping foil made of electro - aluminum is poor, and the change in the winding diameter is not fixed. The hot stamping foil made of electro - aluminum wound by the second detection roller abuts against the rewinding roller. Based on the data detected by the detection mechanism, its winding diameter is determined, and thus the adjustment of its winding speed is realized. The hot stamping foil made of electro - aluminum on the first detection roller abuts against the unwinding roller. Based on the data detected by the detection mechanism, its winding diameter is determined. The unwinding speed is calculated by calculating the change in the winding diameter. When the diameters of the unwinding roller and the rewinding roller change, the first detection arm and the second detection arm rotate around the installation axis, causing relative movement between the slider and the coil. The slider and the coil are energized. The coil is a resistor. When the slider moves, the resistance changes, causing the current magnitude to change. The deflection angles of the corresponding first detection arm and second detection arm are calculated through the current change, so as to facilitate the calculation of the diameter of the hot stamping foil made of electro - aluminum wound on the unwinding roller and the rewinding roller.

[0014] Further, the detection mechanism further includes:

[0015] A detection housing, movably installed on the frame;

[0016] Expansion rods, respectively movably installed on the first detection arm and the second detection arm, and cooperating with the corresponding detection housing.

[0017] The coil and the slider are installed in the detection housing. The detection housing is hinged to the frame. The expansion rods are respectively hinged to the first detection arm and the second detection arm. When the first detection arm and the second detection arm rotate, the expansion rods are telescoped and moved in the detection housing, enabling relative movement between the coil and the slider.

[0018] Further, the detection mechanism further includes:

[0019] An adjustment motor, installed on the detection housing;

[0020] A lead screw, installed and connected to the delivery shaft of the adjustment motor;

[0021] An adjustment seat, connected to the lead screw. The adjustment seat is provided with an adjustment plate;

[0022] An adjustment rod, installed and connected to the expansion rod. The adjustment rod is provided with a limiting portion;

[0023] A spring, sleeved on the adjustment rod and placed between the limiting portion and the adjustment plate;

[0024] Wherein, the adjustment rod penetrates through the adjustment plate, and the limiting portion is placed on both sides of the adjustment plate.

[0025] Adjust the motor to drive the lead screw to rotate, which is used to control the movement of the adjustment seat, so that the adjustment plate moves between the limiting parts of the adjustment rod. There are two springs, which respectively abut against the limiting parts and the adjustment plate. When the first detection arm and the second detection arm rotate by 5-6°, control the adjustment motor to adjust, so that the adjustment plate always remains at the middle position between the two limiting parts. When the aluminized thermal transfer foil wound on the unwinding roller and the rewinding roller is in a similar cam shape and its diameter fluctuates during one rotation, the stability of the detection mechanism is improved through the springs, the limiting parts and the adjustment plate, so that the first detection roller and the second detection roller always remain in contact with the corresponding wound aluminized thermal transfer foil. The current diameter of the wound aluminized thermal transfer foil is calculated by combining the rotation data of the adjustment motor with the current data on the coil and the slider.

[0026] Furthermore, the coil is installed on the adjustment plate, and the slider is installed on the telescopic rod.

[0027] The coil is installed on the adjustment plate, and the slider is installed on the telescopic rod. When the telescopic rod and the adjustment plate move relative to each other, detection is carried out to detect the diameter change of the aluminized thermal transfer foil wound on the unwinding roller and the rewinding roller, thereby improving the detection accuracy.

[0028] Furthermore, the first detection arm and the second detection arm are provided with mounting rods, the mounting rods are provided with mounting seats, and the telescopic rod is hinged to the mounting seats.

[0029] One mounting rod is installed between the two first detection arms, and one mounting rod is installed between the two second detection arms. The telescopic rod is hinged to the mounting seats on the mounting rods, which is convenient for the installation and connection of the detection mechanism and the stability of the installation structure.

[0030] Furthermore, the adjustment plate includes:

[0031] A support group, which is provided with two mutually hinged support members;

[0032] A sliding seat, which is movably installed on the adjustment plate;

[0033] A driving cylinder, which is installed and connected to the sliding seat;

[0034] Among them, the sliding seat is hinged to one of the support members of the support group, and the other support member is hinged to the adjustment plate.

[0035] The driving cylinder drives the sliding seat to move, so that the support members of the support group rotate to correspond to the limiting parts. When the aluminized thermal transfer foil wound on the unwinding roller and the winding roller needs to be replaced, it is necessary to open the corresponding first detection arm or second detection arm, support it between the limiting parts through the support group, and then drive the telescopic rod to extend out of the detection housing through the adjustment motor to realize opening the first detection arm or the second detection arm.

[0036] The beneficial effects of this application are:

[0037] 1. By making the second detection roller press against the aluminized thermal transfer foil wound by the rewinding roller, and determining its winding diameter based on the data detected by the detection mechanism, the winding speed is adjusted accordingly.

[0038] 2. The first detection roller presses against the aluminized thermal transfer foil on the unwind roller. Based on the data detected by the detection mechanism, its winding diameter is determined, and the unwind speed is calculated by computing the change in the winding diameter.

[0039] 3. The stability of the detection mechanism is improved through springs, limit parts, and adjusting plates, so that the first detection roller and the second detection roller always press against the corresponding wound aluminized thermal transfer foil. Description of the Drawings

[0040] Figure 1 is a schematic structural diagram of the rewinding device of the present application;

[0041] Figure 2 is a schematic structural diagram of the detection mechanism of the present application;

[0042] Figure 3 is a schematic structural diagram of the support group of the present application;

[0043] Figure 4 is of the present application Figure 1 magnified view of part A;

[0044] Figure 5 is a schematic structural diagram of the mounting rod of the present application;

[0045] In the figures, reference numerals are as follows: 100, unwind roller; 200, rewinding roller; 300, first detection arm; 310, first detection roller; 400, second detection arm; 410, second detection roller; 500, detection mechanism; 510, coil; 520, slider; 530, detection housing; 540, telescopic rod; 550, adjustment motor; 551, lead screw; 560, adjustment seat; 561, adjusting plate; 562, support group; 563, support member; 564, sliding seat; 565, driving cylinder; 570, adjustment rod; 571, limit part; 572, spring; 580, mounting rod; 581, mounting seat. Detailed Embodiments

[0046] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application fall within the protection scope of the present application.

[0047] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally indicates that the related objects before and after are in an "or" relationship.

[0048] The following will combine the accompanying drawings and provide a detailed description of the embodiments of this application through specific embodiments and their application scenarios.

[0049] Embodiment 1:

[0050] As Figure 1 Figure 2 shown, the embodiment of this application provides an aluminized hot stamping foil rewinding device, which includes a frame, a unwind roller 100, and a rewinding roller 200, and further includes:

[0051] A first detection arm 300, hinged to the frame;

[0052] A first detection roller 310, installed and connected to the first detection arm 300 and abutted against the aluminized hot stamping foil on the unwind roller 100;

[0053] A second detection arm 400, hinged to the frame;

[0054] A second detection roller 410, installed and connected to the second detection arm 400 and abutted against the aluminized hot stamping foil on the rewinding roller 200;

[0055] A detection mechanism 500, respectively installed between the first detection arm 300, the second detection arm 400 and the frame;

[0056] Wherein, the detection mechanism 500 includes a coil 510 and a slider 520. When the first detection arm 300 and the second detection arm 400 rotate, the slider 520 moves on the coil 510.

[0057] The hot stamping foil is unreeled from the unreeling roller 100, passes through hot stamping, and is then rewound through the rewinding roller 200. However, the adhesion of the rewound hot stamping foil is poor, and the diameter change of the winding is not fixed. The hot stamping foil wound by the second detection roller 410 abuts against the rewinding roller 200. Based on the data detected by the detection mechanism 500, its winding diameter is determined, and thus the adjustment of its winding speed is achieved. The first detection roller 310 abuts against the hot stamping foil on the unreeling roller 100. Based on the data detected by the detection mechanism 500, its winding diameter is determined, and its unreeling speed is calculated by calculating the change in the winding diameter. When the diameters of the unreeling roller 100 and the rewinding roller 200 change, the first detection arm 300 and the second detection arm 400 rotate around the installation axis, causing relative movement between the slider 520 and the coil 510. The slider 520 and the coil 510 are energized. The coil 510 is a resistor. When the slider 520 moves, the resistance changes, causing the current magnitude to change. The deflection angles of the corresponding first detection arm 300 and second detection arm 400 are calculated through the current change, so as to facilitate the calculation of the diameters of the hot stamping foils wound on the unreeling roller 100 and the rewinding roller 200.

[0058] Embodiment 2:

[0059] As Figure 1 、 Figure 2 、 Figure 4 shown, the embodiment of the present application provides a hot stamping foil rewinding device. In addition to including the above technical features, further, the detection mechanism 500 further includes:

[0060] A detection housing 530, which is movably installed on the frame;

[0061] Expansion rods 540, which are respectively movably installed on the first detection arm 300 and the second detection arm 400 and cooperate with the corresponding detection housing 530.

[0062] The coil 510 and the slider 520 are installed in the detection housing 530. The detection housing 530 is hinged to the frame. The expansion rods 540 are respectively hinged to the first detection arm 300 and the second detection arm 400. When the first detection arm 300 and the second detection arm 400 rotate, the expansion rods 540 are telescoped and moved in the detection housing 530, and relative movement between the coil 510 and the slider 520 can be achieved.

[0063] Further, the detection mechanism 500 further includes:

[0064] An adjustment motor 550, which is installed on the detection housing 530;

[0065] A lead screw 551, which is installed and connected to the transmission shaft of the adjustment motor 550;

[0066] An adjustment seat 560, which is connected to the lead screw 551. The adjustment seat 560 is provided with an adjustment plate 561;

[0067] The adjusting rod 570 is installed and connected to the telescopic rod 540, and a limiting portion 571 is provided on the adjusting rod 570;

[0068] The spring 572 is sleeved on the adjusting rod 570 and is placed between the limiting portion 571 and the adjusting plate 561;

[0069] Wherein, the adjusting rod 570 passes through the adjusting plate 561, and the limiting portion 571 is placed on both sides of the adjusting plate 561.

[0070] The adjusting motor 550 drives the lead screw 551 to rotate to control the movement of the adjusting seat 560, so that the adjusting plate 561 moves between the limiting portions 571 of the adjusting rod 570. Two springs 572 are provided and respectively abut against the limiting portion 571 and the adjusting plate 561. When the first detection arm 300 and the second detection arm 400 rotate by 5-6°, the adjusting motor 550 is controlled to adjust, so that the adjusting plate 561 always maintains the middle position between the two limiting portions 571. When the aluminum electroplating hot stamping foil wound on the unwinding roller 100 and the rewinding roller 200 is in a similar cam shape and its diameter fluctuates when it rotates one week, the stability of the detection mechanism 500 is improved through the spring 572, the limiting portion 571, and the adjusting plate 561, so that the first detection roller 310 and the second detection roller 410 always abut against the corresponding wound aluminum electroplating hot stamping foil. The current diameter of the wound aluminum electroplating hot stamping foil is calculated by combining the rotation data of the adjusting motor 550 with the current data on the coil 510 and the slider 520.

[0071] Further, the coil 510 is installed on the adjusting plate 561, and the slider 520 is installed on the telescopic rod 540.

[0072] The coil 510 is installed on the adjusting plate 561, and the slider 520 is installed on the telescopic rod 540. When the telescopic rod 540 and the adjusting plate 561 move relative to each other, detection is performed to detect the diameter change of the aluminum electroplating hot stamping foil wound on the unwinding roller 100 and the rewinding roller 200, and the detection accuracy is improved.

[0073] Embodiment 3:

[0074] As Figure 1 、 Figure 4 、 Figure 5 shown, the embodiment of the present application provides an aluminum electroplating hot stamping foil rewinding device. In addition to including the above technical features, further, the first detection arm 300 and the second detection arm 400 are provided with a mounting rod 580, the mounting rod 580 is provided with a mounting seat 581, and the telescopic rod 540 is hinged to the mounting seat 581.

[0075] A mounting rod 580 is installed between the two first detection arms 300, and a mounting rod 580 is installed between the two second detection arms 400. The mounting seat 581 on the mounting rod 580 is hinged to the telescopic rod 540, which facilitates the installation and connection of the detection mechanism 500 and ensures the stability of the installation structure.

[0076] Embodiment 4:

[0077] As Figure 2 、 Figure 3 shown, the embodiment of the present application provides a rewinding device for hot stamping foil. In addition to including the above technical features, further, the adjusting plate 561 includes:

[0078] A support group 562, which is provided with two support members 563 hinged to each other;

[0079] A sliding seat 564, which is movably installed on the adjusting plate 561;

[0080] A driving cylinder 565, which is installed and connected to the sliding seat 564;

[0081] Wherein, the sliding seat 564 is hinged to one of the support members 563 of the support group 562, and the other support member 563 is hinged to the adjusting plate 561.

[0082] The driving cylinder 565 drives the sliding seat 564 to move, so that the support member 563 of the support group 562 rotates to correspond to the limiting portion 571. When the hot stamping foil wound on the unwinding roller 100 and the winding roller needs to be replaced, it is necessary to open the corresponding first detection arm 300 or the second detection arm 400, support it between the limiting portions 571 through the support group 562, and then drive the telescopic rod 540 to extend out of the detection housing 530 by the adjusting motor 550 to realize opening the first detection arm 300 or the second detection arm 400.

[0083] It should be noted that in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0084] The embodiments of the present application have been described above with reference to the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art, under the inspiration of the present application and without departing from the spirit and scope protected by the claims of the present application, can still make many forms, all of which fall within the protection scope of the present application.

Claims

1. An aluminized hot stamping foil rewinding device, comprising a frame, a unwind roller (100), and a rewinding roller (200), characterized in that, It further includes: A first detection arm (300), hinged to the frame; A first detection roller (310), installed and connected to the first detection arm (300) and abutted against the aluminum electroplated stamping foil on the unwinding roller (100); A second detection arm (400), hinged to the frame; A second detection roller (410), installed and connected to the second detection arm (400) and abutted against the aluminum electroplated stamping foil on the rewinding roller (200); A detection mechanism (500), respectively installed between the first detection arm (300), the second detection arm (400) and the frame; Wherein, the detection mechanism (500) includes a coil (510) and a slider (520). When the first detection arm (300) and the second detection arm (400) rotate, the slider (520) moves on the coil (510).

2. The aluminized hot stamping foil rewinding device according to claim 1, wherein The detection mechanism (500) further includes: A detection housing (530), movably installed on the frame; Expansion rods (540), respectively movably installed on the first detection arm (300) and the second detection arm (400), and cooperating with the corresponding detection housing (530).

3. The aluminized hot stamping foil rewinding device according to claim 2, wherein, The detection mechanism (500) further includes: An adjustment motor (550), installed on the detection housing (530); A lead screw (551), installed and connected to the transmission shaft of the adjustment motor (550); An adjustment seat (560), connected to the lead screw (551), and the adjustment seat (560) is provided with an adjustment plate (561); An adjustment rod (570), installed and connected to the expansion rod (540), and the adjustment rod (570) is provided with a limiting portion (571); A spring (572), sleeved on the adjustment rod (570) and placed between the limiting portion (571) and the adjustment plate (561); Wherein, the adjustment rod (570) passes through the adjustment plate (561), and the limiting portion (571) is placed on both sides of the adjustment plate (561).

4. The aluminized hot stamping foil rewinding device according to claim 3, characterized in that, The coil (510) is installed on the adjustment plate (561), and the slider (520) is installed on the expansion rod (540).

5. The aluminized hot stamping foil rewinding device according to claim 4, characterized in that, The first detection arm (300) and the second detection arm (400) are provided with mounting rods (580), the mounting rods (580) are provided with mounting seats (581), and the expansion rods (540) are hinged to the mounting seats (581).

6. The aluminum electrothermal stamping foil rewinding device according to claim 5, characterized in that, The adjustment plate (561) includes: A support group (562), provided with two mutually hinged support members (563); A sliding seat (564), movably installed on the adjustment plate (561); A driving cylinder (565), installed and connected to the sliding seat (564); Wherein, the sliding seat (564) is hinged to one of the support members (563) of the support group (562), and the other support member (563) is hinged to the adjustment plate (561).

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