Foil feeding device and flat-pressing flat gold stamping equipment

Abstract

The utility model discloses a foil feeding device and flat-pressing flat gold stamping equipment. The foil feeding device comprises a foil winding and unwinding mechanism and a foil feeding mechanism, the flat-pressing working unit is located below the foil winding and unwinding mechanism, the flat-pressing working unit is provided with a pressing area, and in the pressing area, the flat-pressing working unit presses the electrochemical aluminum foil onto the printing stock; the foil winding and unwinding mechanism comprises an unwinding unit; a rolling unit; the adjusting unit is used for dynamically adjusting the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjusting unit and the winding unit so as to adapt to the conveying state of the electrochemical aluminum foil in the pressing area; and a first guide roller and a second guide roller are arranged on foil feeding paths of the unwinding unit and the winding unit, and are respectively positioned on two sides of the flattening working unit. By means of the foil feeding device, the tension stability of the electrochemical aluminum foil in the conveying process is guaranteed, continuous conveying and pressing of the electrochemical aluminum foil are facilitated, and the pressing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foil feeding machines, in particular to a foil feeding device and flat pressing and hot stamping equipment. Background Art

[0002] Flat-press hot stamping is a traditional hot stamping method widely used for hot stamping on various packaging materials, such as cigarette packs and wine boxes. Its principle is based on heat transfer technology, which transfers patterns and text from anodized aluminum foil to the surface of the substrate (such as paper or cardboard) under a certain temperature and pressure, thus achieving a hot stamping effect. The foil feeder, a key component of flat-press hot stamping equipment, precisely delivers the anodized aluminum foil to the hot stamping area at a predetermined speed and position, ensuring a smooth hot stamping process.

[0003] The foil feeding device in the prior art, such as Figure 1 As shown, it includes an unwinding unit, a first traction roller group, a first roller, a second roller, a second traction roller group, and a winding unit which are arranged in sequence. The unwinding unit releases the unpressed electrochemical aluminum foil roll, and the winding unit winds up the pressed electrochemical aluminum foil roll. A flattening working unit is arranged between the two guide rollers to press the electrochemical aluminum foil onto the substrate. The first traction roller group and the second traction roller group use a step-by-step drive to feed the foil, and the unwinding unit and the winding unit use mechanical friction to provide friction resistance.

[0004] The shortcomings of the existing foil feeding device are that during the hot stamping process of the flat-pressing and hot stamping equipment, the anodized aluminum foil located between the stamping platform and the fixed platform needs to be in a stationary state to ensure that the anodized aluminum foil is better pressed onto the substrate. Therefore, the first traction roller group and the second traction roller group need to be in a stationary state. However, in the existing foil feeding device, the first traction roller group continuously unwinds, which also causes the anodized aluminum foil between the unwinding unit and the first traction roller group to become loose, wrinkled or folded, and cannot ensure the tension stability of the anodized aluminum foil during transportation, affecting the hot stamping effect of the anodized aluminum foil and reducing processing efficiency.

[0005] Therefore existing technology still needs to be improved and improved. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a foil feeding device and a flat pressing and hot stamping device to improve the problem of poor performance of the existing foil feeding device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A foil feeding device comprises: a foil retracting and unreeling mechanism for conveying electrochemical aluminum foil; a flattening working unit located below the foil retracting and unreeling mechanism, the flattening working unit being provided with a pressing area, in which the flattening working unit presses the electrochemical aluminum foil onto a substrate; the foil retracting and unreeling mechanism comprises: a unwinding unit for releasing the unpressed electrochemical aluminum foil; a winding unit for winding the pressed electrochemical aluminum foil; an adjusting unit for dynamically adjusting the length of the electrochemical aluminum foil between the adjusting unit and the unreeling unit and the length of the electrochemical aluminum foil between the adjusting unit and the winding unit to adapt to the conveying state of the electrochemical aluminum foil in the pressing area; a first guide roller and a second guide roller are further provided on the foil feeding path of the unreeling unit and the winding unit, the first guide roller and the second guide roller being respectively located on both sides of the flattening working unit to guide the electrochemical aluminum foil through the pressing area of ​​the flattening working unit.

[0009] The unwinding unit includes a foil unwinding roller, on which unpressed electrochemical aluminum foil is provided; a foil feeding and pulling roller group, which is located below the foil unwinding roller and is used to pull the unpressed electrochemical aluminum foil on the foil unwinding roller to the adjusting unit; the winding unit includes a foil collecting roller, which is used to wind up the pressed electrochemical aluminum foil; a foil collecting and pulling roller group, which is located below the foil collecting roller and is used to pull the pressed electrochemical aluminum foil delivered by the adjusting unit to the foil collecting roller.

[0010] The foil feeding path of the foil feeding traction roller group and the first guide roller is also provided with a first passing roller for guiding the un-pressed electrochemical aluminum foil; the foil feeding path of the second guide roller and the foil collecting traction roller group is also provided with a second passing roller for guiding the pressed electrochemical aluminum foil.

[0011] The adjusting unit is arranged between the unwinding unit and the winding unit; when the adjusting unit moves toward the winding unit, the length of the electrochemical aluminum foil between the adjusting unit and the winding unit decreases, the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit increases, and the electrochemical aluminum foil in the pressing area is in a stationary state; when the adjusting unit moves toward the unwinding unit, the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit decreases, the length of the electrochemical aluminum foil between the adjusting unit and the winding unit increases, and the electrochemical aluminum foil in the pressing area is in a moving state.

[0012] The flattening working unit includes a fixed platform and a stamping platform arranged opposite to the fixed platform. The stamping platform can move relative to the fixed platform to stamp the electrochemical aluminum foil in the pressing area.

[0013] The fixed platform is arranged below the foil-retracting and unfolding mechanism, and the fixed platform and the foil-retracting and unfolding mechanism can rotate relative to each other to meet the requirements of foil feeding in different directions.

[0014] The rewinding unit rotates actively, and the unwinding unit rotates passively.

[0015] The adjustment unit includes a driving member, an adjusting assembly, and a transmission member connected to the adjusting assembly. The output end of the driving member is connected to the transmission member, so that the transmission member drives the adjusting assembly to reciprocate to adapt to the conveying state of the electrochemical aluminum foil in the pressing area.

[0016] The adjustment assembly includes a first adjustment member and a second adjustment member. The first adjustment member is located on the foil feeding path between the foil feeding traction roller group and the first passing roller, and the second adjustment member is located on the foil feeding path between the second passing roller and the foil receiving traction roller group. The first adjustment member and the second adjustment member move synchronously to adapt to the conveying state of the electrochemical aluminum foil in the pressing area.

[0017] A flat-press hot stamping device comprises the foil feeding device described above.

[0018] Compared with the prior art, the present invention provides a foil feeding device and flat pressing and hot stamping equipment, the foil feeding device comprising: a foil retracting and unreeling mechanism for conveying electrochemical aluminum foil; a flat pressing working unit located below the foil retracting and unreeling mechanism, the flat pressing working unit being provided with a pressing area, in which the flat pressing working unit presses the electrochemical aluminum foil onto the substrate; the foil retracting and unreeling mechanism comprising: a unwinding unit for releasing the unpressed electrochemical aluminum foil; a rewinding unit for rewinding the pressed electrochemical aluminum foil; an adjusting unit for dynamically adjusting the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjusting unit and the rewinding unit to adapt to the conveying state of the electrochemical aluminum foil in the pressing area; a first guide roller and a second guide roller are further provided on the foil feeding path of the unwinding unit and the rewinding unit, the first guide roller and the second guide roller being respectively located on both sides of the flat pressing working unit to guide the electrochemical aluminum foil through the pressing area of ​​the flat pressing working unit. In this application, an adjustment unit is set in the process of rewinding and rolling the electrochemical aluminum foil to dynamically adjust the length of the electrochemical aluminum foil between the adjustment unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjustment unit and the winding unit according to the conveying status of the electrochemical aluminum foil in the pressing area, thereby ensuring the tension stability of the electrochemical aluminum foil during the conveying process, facilitating the continuous conveying and pressing of the electrochemical aluminum foil, and improving the pressing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the foil feeding device in the prior art.

[0020] Figure 2This is a structural schematic diagram of the foil feeding device provided by the utility model.

[0021] Figure 3 This is a structural schematic diagram of the adjustment component in the foil feeding device provided by the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that when a component is referred to as being “mounted on,” “fixed on,” or “disposed on” another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being “connected to” another component, it may be directly connected to the other component or there may be an intermediate component.

[0024] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of the present invention are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0025] Flat-press hot stamping is a traditional hot stamping method widely used for hot stamping on various packaging materials, such as cigarette packs and wine boxes. Its principle is based on heat transfer technology, which transfers patterns and text from anodized aluminum foil to the surface of the substrate (such as paper or cardboard) under a certain temperature and pressure, thus achieving a hot stamping effect. The foil feeder, a key component of flat-press hot stamping equipment, precisely delivers the anodized aluminum foil to the hot stamping area at a predetermined speed and position, ensuring a smooth hot stamping process.

[0026] The foil feeding device in the prior art, such as Figure 1 As shown, it includes an unwinding unit 1, a first traction roller group 71, a first guide roller 51, a second guide roller 52, a second traction roller group 72, and a winding unit 2, which are arranged in sequence. The unwinding unit 1 releases the unpressed electrochemical aluminum foil roll, and the winding unit 2 winds up the pressed electrochemical aluminum foil roll. A flattening working unit is arranged between the two guide rollers. The lower stamping platform 42 and the upper fixed platform 41 move relative to each other to press the electrochemical aluminum foil onto the substrate. Among them, the first traction roller group 71 and the second traction roller group 72 are driven by stepping to feed the foil, and the unwinding unit 1 and the winding unit 2 use mechanical friction to provide friction resistance.

[0027] The shortcomings of the existing foil feeding device are that when the step length of the foil feeding is relatively long or the frequency is relatively high, a large impact force will be applied to the electroplated aluminum foil roll. Due to inertia, the electroplated aluminum foil roll cannot be stopped, causing the electroplated aluminum foil to loosen. If the friction resistance is adjusted too large, the electroplated aluminum foil will be stretched, deformed, or even broken. Therefore, the existing foil feeding device limits the equipment speed and the diameter of the electroplated aluminum. In addition, during the hot stamping process of the flat-pressing flat hot stamping equipment, the electroplated aluminum foil located between the stamping platform 42 and the fixed platform 41 needs to be in a stationary state to ensure that the electroplated aluminum foil is better pressed onto the substrate. Therefore, the first traction roller group 71 and the second traction roller group 72 need to be in a stationary state. However, in the existing foil feeding device, the first traction roller group 71 is continuously unwinding, which also causes the electroplated aluminum foil between the unwinding unit 1 and the first traction roller group 71 to loosen, wrinkle, or bend. The tension stability of the electroplated aluminum foil during transportation cannot be guaranteed, which affects the hot stamping effect of the electroplated aluminum foil and reduces processing efficiency.

[0028] The utility model provides a foil feeding device, please refer to Figure 2 and Figure 3 , including: a foil retracting and unreeling mechanism 10 for conveying anodized aluminum foil; a flat pressing work unit 4 located below the foil retracting and unreeling mechanism 10, the flat pressing work unit 4 being provided with a pressing area, in which the flat pressing work unit 4 presses the anodized aluminum foil onto the substrate; the foil retracting and unreeling mechanism 10 including: a unwinding unit 1 for releasing the unpressed anodized aluminum foil; a winding unit 2 for winding the pressed anodized aluminum foil; an adjusting unit 3 for dynamically adjusting the length of the anodized aluminum foil between the adjusting unit 3 and the unreeling unit 1 and the length of the anodized aluminum foil between the adjusting unit 3 and the winding unit 2 to adapt to the conveying state of the anodized aluminum foil in the pressing area; a first guide roller 51 and a second guide roller 52 are further provided on the foil feeding path of the unreeling unit 1 and the winding unit 2, the first guide roller 51 and the second guide roller 52 being respectively located on both sides of the flat pressing work unit 4 to guide the anodized aluminum foil through the pressing area of ​​the flat pressing work unit 4. In the present application, an adjustment unit 3 is provided during the process of rewinding and rolling the electrochemical aluminum foil, so as to dynamically adjust the length of the electrochemical aluminum foil between the adjustment unit 3 and the unwinding unit 1 and the length of the electrochemical aluminum foil between the adjustment unit 3 and the winding unit 2 according to the conveying status of the electrochemical aluminum foil in the pressing area, thereby ensuring the tension stability of the electrochemical aluminum foil during the conveying process, facilitating the continuous conveying and pressing of the electrochemical aluminum foil, and improving the pressing efficiency.

[0029] In the embodiment of the present application, the unwinding unit 1 and the rewinding unit 2 are arranged at the same height, which is beneficial to the spatial layout of the foil rewinding and unwinding mechanism 10, making it more compact and reasonable, and is beneficial to the electrochemical aluminum foil to maintain a relatively stable trajectory during transportation, reduce the shaking or deviation caused by the height difference, and improve the stability of transportation. At the same time, the uniform height also facilitates the precise control of the tension of the electrochemical aluminum foil, ensuring that it is not easily deformed or broken during transportation; the first guide roller 51 and the second guide roller 52 are arranged at the same height, the first guide roller 51 is close to the side of the unwinding unit 1, and is located at the unwinding unit 1. Below the unwinding unit 1 and the rewinding unit 2, the second guide roller 52 is close to one side of the rewinding unit 2 and is located below the rewinding unit 2. Under the guidance of the first guide roller 51 and the second guide roller 52, the electrochemical aluminum foil is ensured to maintain a horizontal state in the pressing area, thereby ensuring the pressing effect of the electrochemical aluminum foil on the substrate; the adjusting unit 3 is horizontally arranged below the unwinding unit 1 and the rewinding unit 2, and the adjusting unit 3 dynamically moves between the unwinding unit 1 and the rewinding unit 2. On the one hand, it makes the foil unwinding mechanism 10 more compact and reduces the occupied space. On the other hand, it reduces the amplitude of the reciprocating motion of the adjusting unit 3, thereby improving the working efficiency of the adjusting unit 3.

[0030] Furthermore, the unwinding unit 1 includes: a foil unwinding roller 11, on which unpressed electrochemical aluminum foil is provided; a foil feeding and pulling roller group 12, which is located below the foil unwinding roller 11 and is used to pull the unpressed electrochemical aluminum foil on the foil unwinding roller 11 to the adjusting unit 3; the winding unit 2 includes: a foil collecting roller 21, which is used to rewind the pressed electrochemical aluminum foil; a foil collecting and pulling roller group 22, which is located below the foil collecting roller 21 and is used to pull the adjusted unit 3 to transport the pressed electrochemical aluminum foil to the foil collecting roller 21.

[0031] In the present application, the foil releasing roller 11 adopts a passive foil releasing method, that is, the foil releasing roller 11 itself has no power drive, and the foil collecting roller 21 adopts an active foil collecting method, that is, the foil collecting roller 21 is driven by a motor or other power; the foil feeding and pulling roller group 12 is driven by a motor or other power to uniformly pull the unpressed electrochemical aluminum foil and transport it to the adjustment unit 3, and the foil collecting and pulling roller group 22 is driven by a motor or other power to uniformly pull the pressed electrochemical aluminum foil and transport it to the winding unit 2; the linear speed of the foil feeding and pulling roller group 12 is the same as the linear speed of the foil collecting and pulling roller group 22, and both are adapted to the linear speed of the foil collecting roller 21. The linear speed of each roller can be set according to actual conditions, and this application does not impose any restrictions on this.

[0032] In the embodiment of the present application, the foil feeding traction roller group 12 and the foil collecting traction roller group 22 are set at the same height, which reduces the complexity caused by the height difference. At the same time, it can better control the tension of the electrochemical aluminum foil during the transportation process, reduce the tension fluctuation caused by the height difference, and improve the stability and accuracy of the foil feeding; in the tension control system hole, the traction roller groups at the same height are more likely to achieve precise tension adjustment, ensuring that the electrochemical aluminum foil is subjected to balanced tension during transportation, reducing the deviation or damage problems caused by uneven force.

[0033] Furthermore, the foil feeding traction roller group 12 includes a first traction roller 121 and a first pressing roller 122. The setting of the first traction roller 121 facilitates the traction of the unpressed electrochemical aluminum foil to the adjustment unit 3, thereby improving the smoothness of the electrochemical aluminum foil transportation; in addition, the first traction roller 121 can control the tension of the electrochemical aluminum foil by adjusting its rotation speed and rotational force. Appropriate tension helps to maintain the flatness and stability of the electrochemical aluminum foil, and prevents the electrochemical aluminum foil from being deformed or broken due to excessive or insufficient tension during transportation; the axes of the first traction roller 121 and the first pressing roller 122 are set at the same height, and the electrochemical aluminum foil pulled by the first traction roller 121 is fixed and pressed by the first pressing roller 122, so that the electrochemical aluminum foil is close to the surface of the first traction roller 121, which helps to drive the electrochemical aluminum foil to rotate with the first traction roller 121, while reducing the swing or deviation of the electrochemical aluminum foil during transportation, thereby ensuring that the electrochemical aluminum foil can be transported in a predetermined direction and speed. The foil collecting traction roller group 22 includes a second traction roller 221 and a second pressing roller 222, and the axes of the second traction roller 221 and the second pressing roller 222 are set at the same height; the foil collecting traction roller group 22 and the foil feeding traction roller group 12 have similar structures, and will not be described in detail in this application.

[0034] Furthermore, a first roller 61 for guiding unpressed anodized aluminum foil is provided on the foil feeding path between the foil feeding and pulling roller group 12 and the first guide roller 51; a second roller 62 for guiding the pressed anodized aluminum foil is provided on the foil feeding path between the second guide roller 52 and the foil collecting and pulling roller group 22. The first roller 61 is provided to change the conveying direction of the unpressed anodized aluminum foil, and the first roller 61 cooperates with the first guide roller 51 to provide conditions for the subsequent horizontal conveyance of the anodized aluminum foil in the pressing area; the second roller 62 is provided to change the conveying direction of the pressed anodized aluminum foil conveyed by the second guide roller 52, thereby facilitating the conveyance of the pressed anodized aluminum foil to the conditioning unit 3.

[0035] Furthermore, the adjusting unit 3 is arranged between the unwinding unit 1 and the rewinding unit 2; in the embodiment of the present application, the horizontal width of the adjusting unit 3 is smaller than the width between the unwinding unit 1 and the rewinding unit 2; of course, the horizontal width of the adjusting unit 3 may also be larger than the width between the unwinding unit 1 and the rewinding unit 2. In this case, the adjusting component 32 can directly convey the anodized aluminum foil to the first guide roller 51 and the second guide roller 52; in the present application, the direction, size and position of conveying the anodized aluminum foil according to each component can be adaptively adjusted according to the actual situation and the embodiment of the present application; the adjusting unit 3 moves toward the side of the rewinding unit 2, the length of the anodized aluminum foil between the adjusting unit 3 and the rewinding unit 2 is reduced, the length of the anodized aluminum foil between the adjusting unit 3 and the unwinding unit 1 is increased, and the anodized aluminum foil in the pressing area is in a stationary state;

[0036] Specifically, when the flat pressing working unit 4 presses the anodized aluminum foil onto the substrate in the pressing area, the anodized aluminum foil in the pressing area needs to be in a stationary state to ensure the pressing effect; in order to ensure the continuity of foil feeding, during the pressing process of the flat pressing working unit 4, under the action of inertia and the traction of the foil feeding traction roller group 12, the foil placing roller 11 still rotates to release the unpressed anodized aluminum foil. At this time, if the adjusting unit 3 is stationary, the anodized aluminum foil between the adjusting unit 3 and the foil feeding traction roller group 12 will accumulate, and the conveyed anodized aluminum foil will be loose, which may even affect the pressing effect of the anodized aluminum foil. Therefore, the adjusting unit 3 needs to be turned toward The side where the winding unit 2 is located moves to increase the storage length of the electrochemical aluminum foil between the adjusting unit 3 and the unwinding unit 1; similarly, when the electrochemical aluminum foil in the pressing area is in a stationary state, the winding unit 2 continues to work. At this time, if the adjusting unit 3 is stationary, the electrochemical aluminum foil between the winding unit 2 and the adjusting unit 3 will be broken under the pulling of the winding unit 2. Therefore, when the adjusting unit 3 moves close to the side where the winding unit 2 is located, the length of the electrochemical aluminum foil between the adjusting unit 3 and the winding unit 2 is reduced so that the winding unit 2 can continue to work (in fact, the length of the electrochemical aluminum foil stored between the adjusting unit 3 and the winding unit 2 after pressing is reduced).

[0037] Furthermore, the adjusting unit 3 moves toward the side of the unwinding unit 1, the length of the electrochemical aluminum foil between the adjusting unit 3 and the unwinding unit 1 decreases, and the length of the electrochemical aluminum foil between the adjusting unit 3 and the winding unit 2 increases, and the electrochemical aluminum foil in the pressing area is in a moving state.

[0038] Specifically, after the flat pressing working unit 4 completes the pressing of the electrochemical aluminum foil on the substrate in the pressing area, in order to ensure that the electrochemical aluminum foil that has completed the pressing leaves the pressing area and quickly starts the next round of pressing cycle, the adjusting unit 3 needs to move toward the side where the unwinding unit 1 is located to reduce the storage length of the electrochemical aluminum foil between the adjusting unit 3 and the unwinding unit 1. During this process, the storage length of the electrochemical aluminum foil between the adjusting unit 3 and the winding unit 2 is increased, which is conducive to transporting the unpressed electrochemical aluminum foil to the pressing area and transporting the electrochemical aluminum foil after pressing out of the pressing area; in addition, the movement of the adjusting unit 3 toward the unwinding unit 1 can also prepare for the next round of electrochemical aluminum foil in the pressing area to be in a stationary state, so as to reserve space for the next round of adjustment unit 3 to move toward the winding unit 2.

[0039] Furthermore, the flattening unit 4 includes a fixed platform 41 and a stamping platform 42 arranged opposite to the fixed platform 41. The stamping platform 42 can move relative to the fixed platform 41 to stamp the electrochemical aluminum foil in the pressing area. In the embodiment of the present application, the stamping platform 42 is located below the fixed platform 41. The stamping platform 42 gradually rises through the transmission system and mechanical structure, contacts the fixed platform 41 and applies pressure, which is conducive to ensuring that the contact pressure between the substrate and the electrochemical aluminum foil remains uniform and stable during the entire pressing process; at the same time, the stamping platform 42 is located below, which is conducive to forming a stable support structure. During the pressing process, the stamping platform 42 can rise smoothly to avoid unnecessary vibration or deviation, thereby ensuring the pressing quality. It should be noted that the pressing area in this application refers to the space or plane between the fixed platform 41 and the stamping platform 42 for pressing the electrochemical aluminum foil.

[0040] Furthermore, the fixed platform 41 is disposed below the foil-retracting and unretracting mechanism 10 , and the fixed platform 41 and the foil-retracting and unretracting mechanism 10 can rotate relative to each other to meet the requirements of foil feeding in different directions.

[0041] In the prior art, the electroplated aluminum foil feeding is divided into longitudinal foil feeding (i.e. the substrate feeding direction is consistent with the foil feeding direction) and transverse foil feeding (i.e. the substrate feeding direction is perpendicular to the foil feeding direction). However, for customers, they will choose transverse foil feeding or longitudinal foil feeding according to different products. However, for different products, different foil feeding methods will make the utilization of electroplated aluminum foil different, and the efficiency of flat stamping is also different. Therefore, single-direction foil feeding has great limitations for customers. In the embodiment of the present application, the substrate feeding direction is consistent with the foil feeding direction, that is, in Figure 2In the pressing area from right to left, in order to improve the problem of large limitations caused by the single-direction foil feeding of the existing foil feeding device, the fixed platform 41 and the foil retracting and unloading mechanism 10 in this application can rotate relative to each other, that is, the fixed platform 41 is rotatably arranged below the foil retracting and unloading mechanism 10, and the foil retracting and unloading mechanism 10 also includes a frame (not marked in the figure), the unwinding unit 1, the adjustment unit 3, the first roller 61, the second roller 62, and the rewinding unit 2 are arranged on the frame, and the fixed platform 41 can be arranged below the frame by an axis connection or other rotatable manner. At the same time, a guide roller is also provided in the direction of substrate conveying perpendicular to the foil feeding direction to ensure that after the fixed platform 41 and the foil retracting and unloading mechanism 10 rotate relative to each other, the electroplated aluminum foil can still pass through the pressing area horizontally or be stationary in the pressing area. It should be noted that Figure 1 and Figure 2 The printing material is transported under the anodized aluminum foil, and the conveying direction of the printing material is consistent with the conveying direction of the anodized aluminum foil in the pressing area.

[0042] Furthermore, the reeling unit 2 is actively rotated, that is, the reeling unit 2 is driven by power to reel the anodized aluminum foil after the ironing, the first traction roller 121 and the second traction roller 221 are power rollers that rotate at a constant speed, and the unwinding unit 1 is passively rotated, that is, the unwinding unit 1 relies on the traction of the first traction roller 121, the traction of the second traction roller 221 and the power of the reeling unit 2 to passively release the un-ironized anodized aluminum foil. Compared with the existing technology, the advantage of the above arrangement is that the reeling unit 2 actively rotates and the unwinding unit 1 passively rotates, so that the reeling process can maintain active control, ensuring the tightness and uniformity of the reeling, and the passive rotation of the unwinding unit 1 can be flexibly adjusted according to the reeling situation, reducing tension fluctuations caused by speed mismatch; the two uniformly set traction rollers are combined with the active reeling and passive unwinding unit 1, which can better achieve stable control of tension control and matching of transmission speed.

[0043] Furthermore, the adjustment unit 3 includes a driving member (not shown in the figure), an adjustment component 32, and a transmission member 33 connected to the adjustment component 32. The output end of the driving member is connected to the transmission member 33, so that the transmission member 33 drives the adjustment component 32 to reciprocate to adapt to the conveying state of the electrochemical aluminum foil in the pressing area.

[0044] In the present application, the driving member is a motor or other driving source, and the transmission member 33 includes a motor driving wheel 331, a driven pulley 332, a synchronous belt 333 mounted on the motor driving wheel 331 and the driven pulley 332, and the adjustment component 32 is connected to the synchronous belt 333; the output end of the motor is connected to the motor driving wheel 331 to drive the motor driving wheel 331 to rotate, and the motor driving wheel 331 drives the synchronous belt 333 to work with the cooperation of the driven pulley 332, thereby driving the adjustment component 32 on the synchronous belt 333 to move back and forth periodically; the use of the synchronous belt 333 transmission method to drive the adjustment component 32 to move, on the one hand, compared with other transmission methods, the synchronous belt 333 transmission is more accurate and has higher transmission efficiency, and can quickly realize the position adjustment of the adjustment component 32, on the other hand, the synchronous belt 333 has high stability during the transmission process, avoiding the vibration generated by other transmission methods during the transmission process that affects the tension of the anodized aluminum foil. It should be noted that the present application can also drive the transmission member 33 to work through a screw motor, drive the transmission member 33 to work through a motor and a sprocket, etc. The specific driving member and the transmission member 33 can cooperate as long as they can achieve linear motion of the adjustment component 32.

[0045] Furthermore, the adjustment unit 3 also includes a guide member 34 for guiding the linear motion of the adjustment assembly 32. The guide member 34 is arranged parallel to the conveying direction of the anodized aluminum foil in the pressing area. The adjustment assembly 32 is connected to the timing belt 333 and is also connected to the guide member 34. The provision of the guide member 34 guides the reciprocating horizontal motion of the adjustment assembly 32, while also ensuring the stability of the adjustment assembly 32 during motion, thereby ensuring the pressing effect of the anodized aluminum foil.

[0046] Furthermore, the adjustment assembly 32 includes a first adjustment member 321 and a second adjustment member 322. The first adjustment member 321 is located on the foil feeding path between the foil feeding traction roller group 12 and the first passing roller 61, and the second adjustment member 322 is located on the foil feeding path between the second passing roller 62 and the foil collecting traction roller group 22. The first adjustment member 321 and the second adjustment member 322 move synchronously to adapt to the conveying state of the anodized aluminum foil in the pressing area. The first adjustment member 321 and the second adjustment member 322 are rollers of the same diameter. The first adjustment member 321 and the second adjustment member 322 are arranged on the same connecting member to ensure the consistency of the movement process of the two adjustment members. The first adjustment member 321 and the second adjustment member 322 are of the same height, which reduces the tension fluctuation caused by the height, thereby ensuring the stability of the anodized aluminum foil tension during the movement of the two adjustment members.

[0047] The present application also provides a flat-press hot stamping device, including the aforementioned foil feeding device. The foil feeding device in the present application dynamically adjusts the length of the electroplated aluminum foil between the adjustment unit 3 and the unwinding unit 1, and the length of the electroplated aluminum foil between the adjustment unit 3 and the rewinding unit 2, through the adjustment unit 3, to ensure the continuous transportation of the electroplated aluminum foil and the stability of the tension of the electroplated aluminum foil during transportation. As an important component of the flat-press hot stamping device, the stability and accuracy of the foil feeding device directly affect the accuracy of the position of the electroplated aluminum foil on the flat-press hot stamping device, which is conducive to improving the hot stamping accuracy. The foil feeding device in the present application can ensure that the electroplated aluminum foil remains straight during transportation, which is conducive to ensuring the clarity and integrity of the hot stamping pattern and improving the working efficiency of the flat-press hot stamping device.

[0048] In summary, the utility model provides a foil feeding device and flat pressing and hot stamping equipment, the foil feeding device includes: a foil retracting and unreeling mechanism for conveying electrochemical aluminum foil; a flat pressing working unit located below the foil retracting and unreeling mechanism, the flat pressing working unit is provided with a pressing area, in which the flat pressing working unit presses the electrochemical aluminum foil onto the substrate; the foil retracting and unreeling mechanism includes: a unwinding unit for releasing the unpressed electrochemical aluminum foil; a winding unit for winding the electrochemical aluminum foil after pressing; an adjusting unit for dynamically adjusting the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjusting unit and the winding unit to adapt to the conveying state of the electrochemical aluminum foil in the pressing area; a first guide roller and a second guide roller are further provided on the foil feeding path of the unwinding unit and the winding unit, and the first guide roller and the second guide roller are respectively located on both sides of the flat pressing working unit to guide the electrochemical aluminum foil to pass through the pressing area of ​​the flat pressing working unit. In this application, an adjustment unit is set in the process of rewinding and rolling the electrochemical aluminum foil to dynamically adjust the length of the electrochemical aluminum foil between the adjustment unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjustment unit and the winding unit according to the conveying status of the electrochemical aluminum foil in the pressing area, thereby ensuring the tension stability of the electrochemical aluminum foil during the conveying process, facilitating the continuous conveying and pressing of the electrochemical aluminum foil, and improving the pressing efficiency.

[0049] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A foil feeding device, characterized in that: include: A foil unwinding and rewinding mechanism for conveying electrochemical aluminum foil; a flattening working unit located below the foil unwinding and rewinding mechanism, the flattening working unit being provided with a pressing area, in which the flattening working unit presses the electrochemical aluminum foil onto a substrate; the foil unwinding and rewinding mechanism comprising: an unwinding unit for releasing the unpressed electrochemical aluminum foil; a winding unit for winding the pressed electrochemical aluminum foil; an adjusting unit for dynamically adjusting the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit and the length of the electrochemical aluminum foil between the adjusting unit and the winding unit to adapt to the conveying state of the electrochemical aluminum foil in the pressing area; a first guide roller and a second guide roller are further provided on the foil feeding path of the unwinding unit and the winding unit, the first guide roller and the second guide roller being respectively located on both sides of the flattening working unit to guide the electrochemical aluminum foil through the pressing area of ​​the flattening working unit.

2. The foil feeding device according to claim 1, characterized in that The unwinding unit includes a foil unwinding roller, on which unpressed electrochemical aluminum foil is provided; a foil feeding and pulling roller group, which is located below the foil unwinding roller and is used to pull the unpressed electrochemical aluminum foil on the foil unwinding roller to the adjusting unit; the winding unit includes a foil collecting roller, which is used to wind up the pressed electrochemical aluminum foil; a foil collecting and pulling roller group, which is located below the foil collecting roller and is used to pull the pressed electrochemical aluminum foil delivered by the adjusting unit to the foil collecting roller.

3. The foil feeding device according to claim 2, characterized in that The foil feeding path of the foil feeding traction roller group and the first guide roller is also provided with a first passing roller for guiding the un-pressed electrochemical aluminum foil; the foil feeding path of the second guide roller and the foil collecting traction roller group is also provided with a second passing roller for guiding the pressed electrochemical aluminum foil.

4. The foil feeding device according to claim 1, characterized in that The adjusting unit is arranged between the unwinding unit and the winding unit; when the adjusting unit moves toward the winding unit, the length of the electrochemical aluminum foil between the adjusting unit and the winding unit decreases, the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit increases, and the electrochemical aluminum foil in the pressing area is in a stationary state; when the adjusting unit moves toward the unwinding unit, the length of the electrochemical aluminum foil between the adjusting unit and the unwinding unit decreases, the length of the electrochemical aluminum foil between the adjusting unit and the winding unit increases, and the electrochemical aluminum foil in the pressing area is in a moving state.

5. The foil feeding device according to claim 1, characterized in that The flattening working unit includes a fixed platform and a stamping platform arranged opposite to the fixed platform. The stamping platform can move relative to the fixed platform to stamp the electrochemical aluminum foil in the pressing area.

6. The foil feeding device according to claim 5, characterized in that The fixed platform is arranged below the foil-retracting and unfolding mechanism, and the fixed platform and the foil-retracting and unfolding mechanism can rotate relative to each other to meet the requirements of foil feeding in different directions.

7. The foil feeding device according to claim 1, characterized in that: The rewinding unit rotates actively, and the unwinding unit rotates passively.

8. The foil feeding device according to claim 3, characterized in that: The adjustment unit includes a driving member, an adjusting assembly, and a transmission member connected to the adjusting assembly. The output end of the driving member is connected to the transmission member, so that the transmission member drives the adjusting assembly to reciprocate to adapt to the conveying state of the electrochemical aluminum foil in the pressing area.

9. The foil feeding device according to claim 8, characterized in that The adjustment assembly includes a first adjustment member and a second adjustment member. The first adjustment member is located on the foil feeding path between the foil feeding traction roller group and the first passing roller, and the second adjustment member is located on the foil feeding path between the second passing roller and the foil receiving traction roller group. The first adjustment member and the second adjustment member move synchronously to adapt to the conveying state of the electrochemical aluminum foil in the pressing area.

10. A flat stamping equipment, characterized in that: The invention comprises a foil feeding device according to any one of claims 1 to 9.

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