A gilding machine aluminum break monitoring device

Abstract

The utility model relates to a gilding machine breaks aluminium monitoring devices, sets up in the rack of gilding machine, including the winding assembly for winding the electroplated aluminium after gilding, locate a plurality of mounting assembly on the rack, locate photoelectric monitoring assembly on the mounting assembly, the relay for signal conversion and the audible -visual annunciator for sending alarm prompt, the mounting assembly sets up on the transmission path of electroplated aluminium from gilding version delivery to the winding assembly, the monitoring end of each photoelectric monitoring assembly all faces the electroplated aluminium on the transmission path of corresponding position, the signal output end of photoelectric monitoring assembly is connected with the signal input end of relay, the signal output end of relay is connected with the power end of audible -visual annunciator. The utility model discloses through photoelectric monitoring assembly real -time monitoring electroplated aluminium transmission state, can avoid the generation of a large number of waste products due to the fact that the broken aluminium is not found in time, reduces raw material waste and production loss.

Description

Technical Field

[0001] This utility model relates to the field of hot stamping machine technology, and in particular to a device for monitoring aluminum breakage in hot stamping machines. Background Technology

[0002] In the printing industry, post-press hot stamping has become a core processing step for high-end packaging, book covers, gift boxes, and other printed products due to its significant advantage in enhancing product aesthetics and perceived quality. This process involves using a high-temperature hot stamping plate to press the coating or pattern of roll-loaded electroplated aluminum onto the surface of the printed product. During production, the electroplated aluminum is fed to the hot stamping plate via a feeding device, and then recycled by a waste collection device. However, in actual production, due to factors such as the material characteristics of the electroplated aluminum itself, fluctuations in the contact pressure and temperature parameters between the hot stamping plate and the aluminum, and unstable conveying tension of the aluminum, aluminum breakage occurs frequently. If breakage is not detected and addressed in time, it can lead to a large number of defective products with no aluminum stamping in subsequent hot stamping processes, severely reducing product qualification rates, wasting raw materials, and reducing production efficiency. Currently, the aluminum breakage monitoring function of hot stamping machines on the market is mostly integrated into sensors that control the step movement of the electroplated aluminum. These sensors are not only expensive but also have poor operational stability, significantly increasing the overall operating cost and maintenance difficulty of the equipment. Therefore, there is an urgent need for a monitoring device that can independently detect aluminum breakage, has a low cost, and operates stably, in order to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a device for monitoring aluminum breakage in a hot stamping machine, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hot stamping machine aluminum breakage monitoring device, installed on the frame of the hot stamping machine, including a winding assembly installed within the frame for winding electroplated aluminum after hot stamping, a mounting assembly installed on the frame, a photoelectric monitoring assembly installed on the mounting assembly, a relay for signal conversion, and an audible and visual alarm for issuing an alarm prompt; the mounting assembly is installed on the transmission path of the electroplated aluminum from the hot stamping plate to the winding assembly, the monitoring end of the photoelectric monitoring assembly faces the electroplated aluminum on the transmission path, the signal output end of the photoelectric monitoring assembly is electrically connected to the signal input end of the relay, and the signal output end of the relay is electrically connected to the power supply end of the audible and visual alarm.

[0005] Furthermore, the winding assembly includes a housing and a winding drum, the winding drum being rotatably mounted inside the housing, the housing being fixed on the frame, and the housing having a guide port on the side facing the input of the electroplated aluminum for the electroplated aluminum to pass through and be guided to the winding drum.

[0006] Furthermore, a support plate extending along the width direction of the frame is provided on one side of the inner wall of the housing. The mounting assembly includes a Z-shaped bracket and a strong magnetic sheet. The strong magnetic sheet is attached to the vertical surface of the Z-shaped bracket facing the housing with AB glue. The first horizontal surface of the Z-shaped bracket is inserted between the support plate and the frame. The vertical surface of the Z-shaped bracket is attracted to the side wall of the support plate by the magnetic force of the strong magnetic sheet. The photoelectric monitoring assembly is mounted on the second horizontal surface of the Z-shaped bracket.

[0007] Furthermore, a mounting hole is provided on the second horizontal plane. The photoelectric monitoring component includes a photoelectric switch and a circuit. The photoelectric switch is inserted into the mounting hole, and the monitoring end of the photoelectric switch faces the transmission surface of the electroplated aluminum. One end of the circuit is electrically connected to the signal end of the photoelectric switch, and the other end is electrically connected to the signal input end of the relay.

[0008] Furthermore, the rack is also equipped with a mounting plate and several cable management components mounted on the mounting plate for storing the cables.

[0009] Furthermore, the cable management assembly includes a U-shaped frame fixedly connected to the mounting plate, a clamp disposed within the U-shaped frame, a pull rod slidably connected to the U-shaped frame and fixedly connected to the clamp, and a spring sleeved on the outside of the pull rod; the open end of the U-shaped frame faces the mounting plate, the cable passes through the U-shaped frame, the spring abuts against the clamp and the bottom wall of the U-shaped frame, and the elastic force of the spring drives the clamp to move in a direction closer to the mounting plate to press against the cable.

[0010] Furthermore, the pull rod is detachably connected to the clamp.

[0011] Furthermore, the clamping surface of the fixture facing the line is provided with an elastic pad.

[0012] This utility model discloses a broken aluminum monitoring device for hot stamping machines. By independently setting up a monitoring structure consisting of an installation component, a photoelectric monitoring component, a relay, and an audible and visual alarm along the electroplated aluminum transmission path, it effectively solves the problems of existing hot stamping machines' broken aluminum monitoring functions relying on expensive and unstable step-operation integrated sensors, resulting in high usage and maintenance costs. Its photoelectric monitoring component can monitor the electroplated aluminum status in real time. Once broken, the relay triggers the audible and visual alarm, preventing the generation of a large number of aluminum-free hot stamping waste products, reducing raw material waste, and improving production efficiency. Simultaneously, the installation component uses a strong magnetic adsorption Z-shaped bracket, with the photoelectric switch directly fixed to the bracket. Replacement is quick and easy; simply remove the adsorbed Z-shaped bracket to disassemble and install the photoelectric sensor, significantly reducing downtime for maintenance. Combined with a cable management component for orderly cable organization, the overall device has a simple structure, making installation and component replacement extremely convenient, further reducing equipment usage costs and maintenance difficulty, fully meeting the needs for independent, low-cost, stable monitoring, and convenient maintenance for broken aluminum monitoring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0015] Figure 3 This is a schematic diagram of the mounting plate in this utility model.

[0016] The following are the meanings of the labels in the attached diagram: Frame 1; Support plate 11; Rewinding assembly 2; Housing 21; Rewinding drum 22; Mounting assembly 3; Z-shaped bracket 31; First horizontal plane 311; Vertical plane 312; Second horizontal plane 131; Strong magnetic sheet 32; Photoelectric monitoring assembly 4; Photoelectric switch 41; Circuit 42; Relay 5; Audible and visual alarm 6; Mounting plate 7; Cable management assembly 8; U-shaped frame 81; Clamp 82; Elastic pad 821; Pull rod 83; Spring 84; Electroplated aluminum 9. Detailed Implementation

[0017] The following detailed description illustrates the specific implementation method: Please see Figure 1 , Figure 2 as well as Figure 3This utility model discloses a broken aluminum monitoring device for a hot stamping machine, mounted on the frame 1 of the hot stamping machine. It includes a winding assembly 2 for winding up the hot-stamped electroplated aluminum foil 9, a mounting assembly 3 mounted on the frame 1, a photoelectric monitoring assembly 4 mounted on the mounting assembly 3, a relay 5 for signal conversion, and an audible and visual alarm 6 for issuing an alarm. The mounting assembly 3 is positioned on the transmission path of the electroplated aluminum foil 9 from the hot stamping plate to the winding assembly 2. The monitoring end of the photoelectric monitoring assembly 4 faces the electroplated aluminum foil 9 on the transmission path. The signal output end of the photoelectric monitoring assembly 4 is electrically connected to the signal input end of the relay 5, and the signal output end of the relay 5 is electrically connected to the power supply end of the audible and visual alarm 6. The device forms a complete functional link from the recycling and transmission status monitoring of electroplated aluminum 9 to signal conversion and audible and visual alarm through the winding component 2, the mounting component 3, the photoelectric monitoring component 4, the relay 5, and the audible and visual alarm 6. It realizes real-time and accurate monitoring and efficient alarm of electroplated aluminum 9 breakage. At the same time, the mounting component 3 can be adjusted according to the number of electroplated aluminum 9 groups. The overall structure is efficient and practical.

[0018] After the electroplated aluminum 9 is hot-stamped from the hot stamping plate, it needs to be wound up. In this embodiment, the winding assembly 2 includes a housing 21 and a winding drum 22. The winding drum 22 is rotatably installed inside the housing 21, which is fixed to the frame 1. The housing 21 has a guide opening on the side facing the input of the electroplated aluminum 9, through which the electroplated aluminum 9 is inserted and guided to the winding drum 22. The guide opening on the side of the housing 21 facing the input of the electroplated aluminum 9 ensures that the electroplated aluminum 9 is accurately guided to the winding drum 22 after entering the housing 21 from the transmission path, avoiding deviation. The guide opening forces the electroplated aluminum 9 to enter the winding assembly 2 along a fixed path, preventing it from falling out of the monitoring range of the photoelectric monitoring assembly 4 due to deviation during transmission, avoiding situations such as "aluminum present but misjudged as aluminum" or "aluminum broken but not detected," thus improving monitoring accuracy. Furthermore, the housing 21 protects the winding drum 22, reducing the interference of external dust and debris on the winding process, ensuring smooth winding of waste aluminum, and indirectly ensuring stable transmission tension of electroplated aluminum 9, reducing the probability of aluminum breakage due to tension fluctuations.

[0019] In this embodiment, the photoelectric monitoring component 4 is disposed between the hot stamping plate and the winding component 2 to monitor the conveying of the electroplated aluminum 9. To install the photoelectric monitoring component 4, a support plate 11 extending along the width direction of the frame 1 is provided on one side of the inner wall of the frame 1, located in the housing 21. The mounting component 3 is disposed on the support plate 11. In this embodiment, the mounting component 3 includes a Z-shaped bracket 31 and a strong magnetic sheet 32. The strong magnetic sheet 32 ​​is adhered to the vertical surface of the Z-shaped bracket 31 facing the housing 21 using AB glue. The first horizontal surface 311 of the Z-shaped bracket 31 is inserted into the gap formed between the support plate 11 and the frame 1. The vertical surface 312 of the Z-shaped bracket 31 is magnetically attracted to the side wall of the support plate 11 by the strong magnetic sheet 32. The photoelectric monitoring component 4 is mounted on the second horizontal surface 313 of the Z-shaped bracket 31. Mounting component 3 consists of a Z-shaped bracket 31 and a strong magnetic sheet 32. In this embodiment, the strong magnetic sheet 32 ​​is attached to the vertical surface 312 of the Z-shaped bracket 31 facing the housing 21 using AB glue. The use of gap-fitting and magnetic adsorption for fixing eliminates the need for drilling holes in the frame 1 or support plate 11. The Z-shaped bracket 31 can slide flexibly along the width of the support plate 11, allowing for rapid adjustment of the monitoring position of the photoelectric monitoring component 4. Addressing the need for simultaneous conveying of multiple sets of electroplated aluminum 9 in daily printing, the detachable connection between the Z-shaped bracket 31 and the support plate 11 allows for convenient installation of the matching photoelectric monitoring component 4, adapting to monitoring requirements of different quantities of electroplated aluminum. Furthermore, the entire installation and adjustment process requires no specialized tools or construction work; operators can complete it manually, effectively reducing equipment modification time and significantly lowering installation costs.

[0020] In this embodiment, the photoelectric monitoring component 4 includes a photoelectric switch 41 and a circuit 42. Specifically, the installation method involves opening a mounting hole (not shown) on the second horizontal plane 313, into which the photoelectric switch 41 is inserted. The monitoring end of the photoelectric switch 41 faces the electroplated aluminum 9. One end of the circuit 42 is electrically connected to the signal end of the photoelectric switch 41, and the other end is electrically connected to the signal input end of the relay 5. A conventional industrial-grade photoelectric switch 41 is selected, with a unit price far lower than the original integrated step sensor of the hot stamping machine, significantly reducing the overall cost of the device. The photoelectric switch 41 is fixed by an interference fit through the mounting hole to prevent displacement due to vibration. The circuit 42 connection is simple; if the photoelectric switch 41 malfunctions, it can be directly pulled out and replaced without disassembling the overall structure, improving maintenance efficiency by more than 50%. During monitoring, the monitoring end of the photoelectric switch 41 is vertically oriented towards the transmission surface of the electroplated aluminum 9, continuously emitting infrared or visible light. When the electroplated aluminum 9 transmits normally, its surface reflects the light emitted by the photoelectric switch 41, and the reflected light is captured by the receiving end of the photoelectric switch 41. At this time, the internal circuit of photoelectric switch 41 triggers a normal signal, which is transmitted in real time to the signal input terminal of relay 5 through line 42. When the electroplated aluminum 9 breaks, there is no aluminum sheet to block the transmission path, and the light emitted by photoelectric switch 41 cannot be reflected, so the receiving end does not receive the reflected light. At this time, the internal circuit of photoelectric switch 41 triggers an abnormal signal, which is immediately transmitted to the signal input terminal of relay 5 through line 42. When photoelectric switch 41 transmits the normal signal to the signal input terminal of relay 5, the coil of relay 5 is not energized, and its normally closed contact remains open. At this time, the power circuit of the audible and visual alarm 6 is not connected, and the alarm does not work. When photoelectric switch 41 transmits the abnormal signal to the signal input terminal of relay 5, the coil of relay 5 is energized. At this time, the power supply terminal of the audible and visual alarm 6 is connected to the power supply through the closed contact of relay 5, and the alarm immediately starts, emitting a high-decibel sound accompanied by flashing lights, strongly alerting the operator that the electroplated aluminum 9 has broken and that the machine needs to be stopped immediately.

[0021] In this embodiment, since the electroplated aluminum 9 is distributed in multiple groups, multiple photoelectric monitoring components 4 are required to monitor each group of electroplated aluminum 9. Because the photoelectric monitoring components 4 are located inside the frame 1, mechanical vibration occurs during the operation of the hot stamping machine, and the internal space of the frame 1 is compact. If the wires 42 are arranged haphazardly, they are easily entangled by vibration, pulled or squeezed by moving parts, leading to wear of the insulation layer of the wires 42 and loosening of the connectors, which in turn causes signal interruption or false transmission of the photoelectric monitoring components 4. To accommodate the wires 42, a mounting plate 7 and several wire management components 8 are also provided inside the frame 1 for accommodating the wires 42. Specifically, the wire management components 8 include a U-shaped frame 81 fixedly connected to the mounting plate 7, a clamp 82 located within the U-shaped frame 81, a pull rod 83 slidably connected to the U-shaped frame 81 and fixedly connected to the clamp 82, and a spring 84 sleeved on the outside of the pull rod 83. The open end of the U-shaped frame 81 faces the mounting plate 7. The wire 42 passes through the U-shaped frame 81. A spring 84 abuts against the bottom wall of the clamp 82 and the U-shaped frame 81. The elastic force of the spring 84 drives the clamp 82 to move closer to the mounting plate 7 to clamp the wire 42. This design allows the clamping force to be automatically adjusted by the elastic force of the spring 84, accommodating wires 42 of different diameters without requiring separate replacement of the clamping components. The clamp 82 continuously clamps the wire 42 with spring force, preventing the wire from loosening or shifting due to vibration during hot stamping machine operation, thus ensuring stable signal transmission.

[0022] Since the clamp 82 is in direct contact with the line 42, it may wear down over time, such as deformation of the clamping surface. To facilitate replacement of the clamp 82, in this embodiment, the pull rod 83 and the clamp 82 are designed to be detachably connected. Specifically, in this embodiment, a threaded groove (not shown in the figure) is provided at the center of the clamp 82, and an external thread (not shown in the figure) is provided at the end of the pull rod 83 near the clamp 82. The pull rod 83 is threaded through the U-shaped frame 81 and then tightened with the thread of the clamp 82. With this design, when the clamp 82 or the spring 84 is damaged, the damaged part can be disassembled and replaced separately without replacing the entire cable management assembly 8, reducing maintenance costs. Furthermore, different specifications of clamps 82 can be replaced according to the number and diameter of the lines, improving the versatility of the cable management assembly 8. Since the clamp 82 is in contact with the line 42 for a long time, in order to avoid damage to the outer sheath of the line 42 due to hard contact, an elastic pad 821 is provided on the clamping surface of the clamp 82 facing the line 42 in this embodiment. The elastic material has a higher frictional force than the rigid material, which can further prevent the circuit 42 from sliding at the clamping point and improve the fixing effect. At the same time, it can also reduce the damage to the circuit 42 caused by clamping pressure, reduce the rate at which the circuit 42 ages and fails due to damage to the outer sheath, and extend the service life of the overall device.

[0023] The working principle of this utility model's aluminum breakage monitoring device for a hot stamping machine is as follows: The winding drum of the winding assembly recovers the hot-stamped electroplated aluminum inside the housing. The Z-shaped bracket of the mounting assembly is attracted to the outside of the housing by a strong magnetic sheet, and its position can be adjusted as needed so that the photoelectric switch monitoring end of the photoelectric monitoring assembly is aligned with the electroplated aluminum transmission surface, monitoring in real time whether the electroplated aluminum is being transmitted normally. When the electroplated aluminum is being transmitted normally, the photoelectric switch continuously monitors the aluminum strip, and the circuit transmits a signal to the relay, which does not trigger the audible and visual alarm. If the electroplated aluminum breaks, the photoelectric switch no longer detects the aluminum strip and immediately sends a trigger signal to the relay, which then connects the power supply to the audible and visual alarm, causing it to emit an audible and visual alarm.

[0024] This utility model discloses a broken aluminum monitoring device for a hot stamping machine, which has the following advantages: It utilizes a photoelectric switch to monitor the transmission status of the electroplated aluminum in real time, and combined with relay signal conversion and an immediate warning from an audible and visual alarm, it can quickly detect broken aluminum and remind operators to stop the machine, significantly reducing the generation of defective products with no aluminum in the hot stamping process and improving the product qualification rate. The use of a conventional industrial-grade photoelectric switch instead of an expensive integrated step sensor significantly reduces the overall cost of the device. Furthermore, the photoelectric switch is installed with an interference fit, has simple wiring connections, and can be directly replaced in case of failure, greatly improving maintenance efficiency. The mounting components use a Z-shaped bracket gap clamping and strong magnetic adsorption method, eliminating the need for drilling holes in the frame. The position of the photoelectric monitoring components can be flexibly adjusted to accommodate different widths of electroplated aluminum, and operators can complete the installation and adjustment by hand, reducing equipment modification time and installation costs. The cable management assembly adjusts the clamp position through the cooperation of pull rods and springs, making it compatible with cables of different diameters. This prevents signal interruption caused by cable entanglement, wear, or loosening due to vibration. The guide port of the winding assembly ensures a stable transmission path for the electroplated aluminum, and the enclosure reduces external interference, further guaranteeing monitoring accuracy and device operational stability. The overall structure is efficient and practical, combining low cost, easy maintenance, and strong versatility.

[0025] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or its practicality.

Claims

1. A device for detecting aluminum breakage in a hot stamping machine, mounted on the frame (1) of the hot stamping machine, characterized in that: The system includes a winding assembly (2) located within the frame for winding electroplated aluminum (9) after hot stamping, a mounting assembly (3) located on the frame (1), a photoelectric monitoring assembly (4) located on the mounting assembly (3), a relay (5) for signal conversion, and an audible and visual alarm (6) for issuing an alarm. The mounting assembly (3) is located on the transmission path of the electroplated aluminum (9) from the hot stamping plate to the winding assembly (2). The monitoring end of the photoelectric monitoring assembly (4) faces the electroplated aluminum (9) on the transmission path. The signal output end of the photoelectric monitoring assembly (4) is electrically connected to the signal input end of the relay (5). The signal output end of the relay (5) is electrically connected to the power supply end of the audible and visual alarm (6).

2. The aluminum breakage monitoring device for hot stamping machines according to claim 1, characterized in that: The winding assembly (2) includes a housing (21) and a winding drum (22). The winding drum (22) is rotatably installed inside the housing (21). The housing (21) is fixed on the frame (1), and the housing (21) has a guide port on the side facing the input of the electroplated aluminum (9) for the electroplated aluminum (9) to pass through and be guided to the winding drum.

3. The aluminum breakage monitoring device for hot stamping machines according to claim 2, characterized in that: The inner wall of the frame (1) is provided with a support plate (11) extending along the width direction of the frame (1) on one side of the housing (21). The mounting assembly (3) includes a Z-shaped bracket (31) and a strong magnetic sheet (32). The strong magnetic sheet (32) is glued to the vertical surface of the Z-shaped bracket (31) facing the housing (21) by AB glue. The first horizontal surface (311) of the Z-shaped bracket (31) is inserted between the support plate (11) and the frame (1). The vertical surface (312) of the Z-shaped bracket (31) is attracted to the side wall of the support plate (11) by the magnetic force of the strong magnetic sheet (32). The photoelectric monitoring assembly (4) is installed on the second horizontal surface (313) of the Z-shaped bracket (31).

4. The aluminum breakage monitoring device for hot stamping machines according to claim 3, characterized in that: The second horizontal plane (313) has an installation hole. The photoelectric monitoring component (4) includes a photoelectric switch (41) and a line (42). The photoelectric switch (41) is inserted into the installation hole, and the monitoring end of the photoelectric switch (41) faces the transmission surface of the electroplated aluminum (9). One end of the line (42) is electrically connected to the signal end of the photoelectric switch (41), and the other end is electrically connected to the signal input end of the relay (5).

5. The aluminum breakage monitoring device for a hot stamping machine according to claim 4, characterized in that: The rack (1) is also provided with a mounting plate (7) and several cable management components (8) provided on the mounting plate (7) for storing the line (42).

6. The aluminum breakage monitoring device for a hot stamping machine according to claim 5, characterized in that: The cable management assembly (8) includes a U-shaped frame (81) fixedly connected to the mounting plate (7), a clamp (82) disposed in the U-shaped frame (81), a pull rod (83) slidably connected to the U-shaped frame (81) and fixedly connected to the clamp (82), and a spring (84) sleeved on the outside of the pull rod (83); the open end of the U-shaped frame (81) faces the mounting plate (7), the cable (42) passes through the U-shaped frame (81), the spring (84) abuts against the clamp (82) and the bottom wall of the U-shaped frame (81), and the clamp (82) is driven by the elastic force of the spring (84) to move in a direction close to the mounting plate (7) to press against the cable (42).

7. The aluminum breakage monitoring device for a hot stamping machine according to claim 6, characterized in that: The pull rod (83) is detachably connected to the clamp (82).

8. The aluminum breakage monitoring device for a hot stamping machine according to claim 6, characterized in that: The clamp (82) has an elastic pad (821) on the clamping surface facing the line (42).

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