A gilding film winding device

Abstract

The utility model belongs to packaging material processing equipment technical field, concretely speaking it is a kind of gilding film winding device, including frame, two winding shafts are rotationally connected in frame, the one side fixed with the pneumatic motor corresponding with each winding shaft of frame, each pneumatic motor can drive corresponding winding shaft rotation;Frame top still rotationally connected with two material guide rollers corresponding with winding shaft.The utility model has the advantages of simple structure, low manufacturing cost and maintenance cost, high degree of automation, compact layout high efficiency etc.

Description

Technical Field

[0001] This utility model belongs to the technical field of packaging material processing equipment, specifically relating to a hot stamping film winding device. Background Technology

[0002] Hot stamping is a special printing process that does not use ink. Hot stamping refers to the process of applying electroplated aluminum foil to the surface of a substrate under specific temperature and pressure. A hot stamping machine is the equipment used to perform this process. During hot stamping, waste film is continuously generated, which requires proper treatment. Rewinding is a common method for handling this waste. It not only makes the waste neater, facilitating storage and transportation, but also eliminates wrinkles and improves the flatness of the waste by controlling the tension during rewinding. Furthermore, the rewound waste is easier to process or handle later, such as for recycling, which necessitates the use of a rewinding device.

[0003] In the existing technology, most waste film winding devices for hot stamping printing are driven by motors. However, in reality, the waste film does not move at a constant speed during the hot stamping process, but is constantly pulsating. Therefore, using a motor to drive the winding usually requires a more complex tension adjustment mechanism to match the constant speed of the motor with the pulsating film, which results in a more complex winding mechanism structure and increased manufacturing costs. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hot stamping film winding device to simplify the structure of the winding device and reduce the equipment investment of enterprises.

[0005] The purpose of this utility model can be achieved through the following technical solution: a hot stamping film winding device, characterized in that the winding device includes a frame, two winding shafts are rotatably connected inside the frame, a pneumatic motor corresponding to each winding shaft is fixed on one side of the frame, and each pneumatic motor can drive the corresponding winding shaft to rotate; two guide rollers corresponding to each winding shaft are also rotatably connected to the top of the frame.

[0006] Preferably, each of the winding shafts is provided with a first conical block and a second conical block, and the conical surfaces of the first conical block and the second conical block on the same winding shaft are arranged opposite to each other; each first conical block is fixedly connected to the corresponding winding shaft, each second conical block is slidably connected to the corresponding winding shaft, and each second conical block is provided with a locking screw; each first conical block and the second conical block are provided with a plurality of anti-slip ridges on their conical surfaces.

[0007] Preferably, a first proximity switch and a second proximity switch are fixed on the frame. A metal sensing plate is detachably connected to one end of each guide roller, and when each guide roller rotates, the two metal sensing plates can respectively sweep past the first proximity switch and the second proximity switch. A control box is also fixed inside the frame, containing an air switch, a power module, a first intermediate relay, a second intermediate relay, a first time relay, a second time relay, a first push-button switch, a second push-button switch, and an audible and visual alarm. This winding device also includes a first solenoid valve and a second solenoid valve that can respectively control the start and stop of two pneumatic motors. The power module converts mains power into DC power to supply the system, while the air switch controls the connection and disconnection between the power module and the mains power. The first proximity switch is connected in series with the coil of the first intermediate relay and then connected to the power supply. Between the positive and negative terminals of the power module, the second proximity switch is connected in series with the coil of the second intermediate relay and then connected between the positive and negative terminals of the power module; the power terminals of the first and second time relays are both connected to the positive and negative terminals of the power module; the common point of the first and second time relays is connected in series with the first and second push-button switches and then connected to the positive terminal of the power module; the normally closed terminals of the first and second time relays are connected in series with the first and second solenoid valves and then connected to the negative terminal of the power module; the normally open terminals of the first and second time relays are connected in parallel and then connected in series with the audible and visual alarm and connected to the negative terminal of the power module; the operating terminal of the first intermediate relay is connected between the two reset terminals of the first time relay, and the operating terminal of the second intermediate relay is connected between the two reset terminals of the second time relay.

[0008] The advantages of this utility model are:

[0009] 1. Simplified tension control: By utilizing the inherent softness of pneumatic motors, complex electronic or mechanical tension control systems are eliminated, reducing costs and maintenance difficulty.

[0010] 2. High degree of automation: It realizes fully automatic detection, shutdown and alarm of film breakage, without the need for continuous manual monitoring.

[0011] 3. Improve production efficiency: It can detect faults in time, avoid the accumulation of waste materials, complete shutdown of the production line and tedious sorting work caused by untreated film breaks, and ensure the continuity of production to the greatest extent.

[0012] 4. Ingenious and practical design: The conical block fixes the winding drum, making unloading convenient; the "heartbeat detection" logic is reliable and low-cost; the dual-station independent control can also be linked to alarms, and the layout is compact and efficient. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the winding device.

[0014] Figure 2 This is a schematic diagram illustrating the application scenario of this winding device.

[0015] Figure 3 This is the circuit diagram of the control system in this rewinding package.

[0016] In the diagram, 1. Frame; 2. Take-up shaft; 21. First conical block; 22. Second conical block; 23. Locking screw; 24. Anti-slip rib; 3. Pneumatic motor; 4. Guide roller; 41. Metal sensor; 5. Control box; 6. Second slider; 52. Rotating cutter; 53. Pressure plate roller; 6. Waste film; 7. Winding drum; QF. Air switch; PS. Power module; SQ1. First proximity switch; SQ2. First proximity switch; KM1. First intermediate relay; KM2. Second intermediate relay; KT1. First time relay; KT2. Second time relay; SB1. First push-button switch; SB2. Second push-button switch; YV1. First solenoid valve; YV2. Second solenoid valve; SA. Audible and visual alarm. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 As shown, a hot stamping film winding device includes a frame 1, with two winding shafts 2 rotatably connected inside the frame 1. A pneumatic motor 3, corresponding to each winding shaft 2, is fixed on one side of the frame 1, and each pneumatic motor 3 can drive the corresponding winding shaft 2 to rotate. Two guide rollers 4, also corresponding to each winding shaft 2, are rotatably connected to the top of the frame 1. In this winding device, pneumatic motors 3 replace traditional electric motors as the drive source. Utilizing the soft characteristics of the pneumatic motors 3, the winding tension can be adjusted simply by regulating the air pressure, and it can automatically adapt to the rhythm of the film, eliminating the need for a complex tension adjustment mechanism, simplifying the equipment structure and reducing manufacturing costs. In this winding device, each winding shaft 2 is equipped with a corresponding guide roller 4 and a pneumatic motor 3, and these three components form a winding unit, allowing it to simultaneously wind two waste films 6.

[0019] like Figure 1 , Figure 2As shown, each take-up shaft 2 is provided with a first conical block 21 and a second conical block 22, and the conical surfaces of the first conical block 21 and the second conical block 22 on the same take-up shaft 2 are arranged opposite to each other; each first conical block 21 is fixedly connected to the corresponding take-up shaft 2, each second conical block 22 is slidably connected to the corresponding take-up shaft 2, and each second conical block 22 is provided with a locking screw 23; each first conical block 21 and the second conical block 22 is provided with several anti-slip ridges 24 on its conical surface. The waste film 6 after hot stamping printing usually has a certain temperature. Considering that the film needs to maintain a certain tension during the winding process, if the take-up shaft 2 is used directly for winding, the waste film 6 will shrink after cooling, making it impossible to remove it from the take-up shaft 2 after winding. Therefore, we need to mount a winding drum 7 on the take-up shaft 2. The cooperation of the first conical block 21 and the second conical block 22 can just fix the winding drum 7, and each anti-slip protrusion 24 can effectively prevent the winding drum 7 from slipping.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, a first proximity switch SQ1 and a second proximity switch SQ2 are fixed on the frame 1. A metal sensing plate 41 is detachably connected to one end of each guide roller 4. When each guide roller 4 rotates, the two metal sensing plates 41 can respectively sweep across the first proximity switch SQ1 and the second proximity switch SQ2. A control box 5 is also fixed inside the frame 1. The control box 5 contains an air switch QF, a power module PS, a first intermediate relay KM1, a second intermediate relay KM2, a first time relay KT1, a second time relay KT2, and a first push-button switch SB. 1. The second push-button switch SB2 and the audible and visual alarm SA, the first proximity switch SQ1 and the second proximity switch SQ2 are both two-wire normally open proximity switches, and the first time relay KT1 and the second time relay KT2 are both Delixi JS3ZF; this winding device also includes a first solenoid valve YV1 and a second solenoid valve YV2 that can control the start and stop of the two pneumatic motors 3 respectively, and the first solenoid valve YV1 and the second solenoid valve YV2 are normally closed solenoid valves; the power module PS converts the mains power into DC power to power the system, while the air switch QF is used to control the power module. The connection between the power supply module PS and the mains power is controlled as follows: The first proximity switch SQ1 is connected in series with the coil of the first intermediate relay KM1 and then connected between the positive and negative terminals of the power supply module PS; the second proximity switch SQ2 is connected in series with the coil of the second intermediate relay KM2 and then connected between the positive and negative terminals of the power supply module PS; the power terminals of the first time relay KT1 and the second time relay KT2 are both connected to the positive and negative terminals of the power supply module PS; the common point of the first time relay KT1 and the second time relay KT2 is connected in series with the first push-button switch SB1 and the second push-button switch SB2 and then connected to the positive terminal of the power supply module PS; the normally closed terminals of the first time relay KT1 and the second time relay KT2 are connected in series with the first solenoid valve YV1 and the second solenoid valve YV2 and then connected to the negative terminal of the power supply module PS; the normally open terminals of the first time relay KT1 and the second time relay KT2 are connected in parallel and then connected in series with the audible and visual alarm SA and connected to the negative terminal of the power supply module PS; the operating terminal of the first intermediate relay KM1 is connected between the two reset terminals of the first time relay KT1, and the operating terminal of the second intermediate relay KM2 is connected between the two reset terminals of the second time relay KT2.

[0021] Working principle of the control system: When this winding device winds up the waste film 6, we first need to install the winding drum 7 on each winding shaft 2, then pass one end of the waste film 6 around the corresponding guide roller 4, and finally wind and fix it on the winding drum 7. Next, close the air switch QF to connect the power module PS to the mains power to provide DC power to the entire system. Then, we set a delay on the first time relay KT1 and the second time relay KT2. This delay should be greater than the maximum time for the metal sensor 41 to scan the corresponding proximity switch (the waste film 6 is rhythmic, so the maximum time should be the time for the metal sensor 41 to rotate one revolution plus the rhythmic interval time); then, we press the corresponding button switch according to the winding requirements (the first button SB1 and the second button switch SB2 correspond to the two winding shafts 2 respectively, and both are illuminated button switches; press the button switch corresponding to the winding shaft 2 to activate it).

[0022] Taking one set of winding units as an example, during normal system operation, the guide roller 4 rotates continuously under the drive of the waste film 6, causing the sensing metal plate at its end to continuously sweep across the first proximity switch SQ1. This causes the first intermediate relay KM1 to be energized periodically, resulting in its actuating terminal intermittently energizing and disengaging. The actuating terminal of the first intermediate relay KM1 is connected between the two reset terminals of the first time relay KT1. Since the delay set on the first time relay KT1 is greater than the maximum duration for the metal sensing plate 41 to sweep across the corresponding proximity switch, the first time relay KT1 will always be reset before the set delay is reached, maintaining its current state (normally closed terminal remains closed). Therefore, current flows from the positive terminal of the power module PS through the first button SB1, the common terminal of the first time relay KT1, the normally closed terminal of the first time relay KT1, and the first electromagnetic switch to the negative terminal of the power module PS, keeping the first solenoid valve YV1 energized, and the corresponding pneumatic motor 3 maintaining normal operation. Similarly, the other winding unit operates in the same manner.

[0023] However, sometimes the waste film 6 is narrow and is very likely to break during the winding process. If the break is not detected in time, and the hot stamping machine continues to produce waste film 6, it will cause a large amount of waste film to accumulate chaotically. Especially when multiple sets of winding shafts 2 are working simultaneously, the broken fertilizer film will also affect the normal winding of fertilizer film, forcing the staff to stop the entire production line and spend a lot of time cleaning up, which will seriously affect the processing efficiency. In this winding device, when a waste film 6 breaks, the waste film 6 will leave the guide roller 4, causing the guide roller 4 to lose power and stop rotating. The metal sensing plate 41 will also be unable to scan the proximity switch, causing the intermediate relay to fail to engage for a long time until the time relay reaches the set delay and activates. Its contact switches from the normally closed end to the normally open end, energizing the audible and visual alarm SA and emitting an audible and visual alarm. At the same time, the corresponding solenoid valve is de-energized and closes, and the corresponding pneumatic motor 3 stops working. Furthermore, in this system, the normally open terminals of the first time relay KT1 and the second time relay KT2 are connected in parallel and then connected in series with the audible and visual alarm SA. Therefore, in this winding device, if any winding unit experiences a waste material breakage, the audible and visual alarm SA will be activated, triggering an alarm to remind staff to handle the abnormality in a timely manner and maximize the continuous and efficient production of the production line.

[0024] Core mechanism: Automatic monitoring and fracture protection. The system works based on a "heartbeat detection" mechanism.

[0025] A. Normal working status (with a "heartbeat")

[0026] 1. The operator installs the winding drum and film, and presses the first button to start SB1.

[0027] 2. Current path: Power supply positive terminal → First button open SB1 → First time relay KT1 (common point & normally closed terminal) → First solenoid valve YV1 → Power supply -.

[0028] 3. When the first solenoid valve YV1 is energized, the air circuit is opened, and the first pneumatic motor 3 starts to work.

[0029] 4. The film is conveyed normally, which drives the first guide roller 4 to rotate. The metal sensing plate 41 on it periodically triggers the first proximity switch SQ1.

[0030] 5. Each time the first proximity switch SQ1 is turned on, the coil of the first intermediate relay KM1 is energized once.

[0031] 6. The operating terminal of the first intermediate relay KM1 will be energized, which is equivalent to a momentary short circuit between the two reset terminals of the first time relay KT1.

[0032] 7. This "short circuit" signal will reset the first time relay KT1, clearing its internal timer and restarting the timing.

[0033] 8. Since the membrane “rhythm” is normal, the metal sensing piece 41 will trigger the proximity switch again before the timer reaches the set delay (T), thereby resetting the time relay.

[0034] Therefore, under normal conditions, the time relay will never reach the set value T, and its contacts will remain in the initial state (normally closed terminal is closed). This ensures that the solenoid valve is continuously energized, and the pneumatic motor 3 operates stably.

[0035] B. Membrane rupture state ("heartbeat" stops)

[0036] 1. When the film in the first winding unit breaks, the first guide roller 4 stops rotating.

[0037] 2. The metal sensor 41 stops at a certain position and can no longer trigger the first proximity switch SQ1.

[0038] 3. The first intermediate relay KM1 is no longer triggered, and its operating end is no longer energized.

[0039] 4. If the periodic reset signal is lost, the timer of the first time relay KT1 will continue to count until the preset delay T is reached.

[0040] 5. Upon the expiration of the timer, the first time relay KT1 activates, and its contact state switches:

[0041] 6. Normally closed end disconnected: The circuit of the first solenoid valve YV1 is cut off, and the first pneumatic motor 3 stops working to prevent idling and energy waste.

[0042] 7. When the normally open terminal is closed: the current path changes to: power supply + → ... → first time relay KT1 (common point & normally open terminal) → audible and visual alarm SA → power supply -.

[0043] 8. When the audible and visual alarm SA is powered on, it will emit an audible and visual signal to immediately notify staff to handle the situation.

[0044] Key design feature: The normally open terminals of the two time relays are connected in parallel. Therefore, if either winding unit breaks, the same audible and visual alarm (SA) will be triggered.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A hot stamping film winding device, characterized in that, The winding device includes a frame (1), in which two winding shafts (2) are rotatably connected. A pneumatic motor (3) corresponding to each winding shaft (2) is fixed on one side of the frame (1), and each pneumatic motor (3) can drive the corresponding winding shaft (2) to rotate. Two guide rollers (4) corresponding to each winding shaft (2) are also rotatably connected to the top of the frame (1).

2. The hot stamping film winding device according to claim 1, characterized in that, Each of the aforementioned take-up shafts (2) is provided with a first conical block (21) and a second conical block (22), and the conical surfaces of the first conical block (21) and the second conical block (22) on the same take-up shaft (2) are arranged opposite to each other; each first conical block (21) is fixedly connected to the corresponding take-up shaft (2), each second conical block (22) is slidably connected to the corresponding take-up shaft (2), and each second conical block (22) is provided with a locking screw (23); each first conical block (21) and the second conical block (22) is provided with a plurality of anti-slip ridges (24) on the conical surface of each first conical block (21) and the second conical block (22).

3. The hot stamping film winding device according to claim 1, characterized in that, The frame (1) is fixed with a first proximity switch (SQ1) and a second proximity switch (SQ2). One end of each guide roller (4) is detachably connected to a metal induction plate (41). When each guide roller (4) rotates, the two metal induction plates (41) can respectively sweep across the first proximity switch (SQ1) and the second proximity switch (SQ2). The frame (1) is also fixed with a control box (5). The control box (5) is equipped with an air switch (QF), a power module (PS), a first intermediate relay (KM1), a second intermediate relay (KM2), and a first... The device includes a time relay (KT1), a second time relay (KT2), ​​a first push-button switch (SB1), a second push-button switch (SB2), and an audible and visual alarm (SA); the winding device also includes a first solenoid valve (YV1) and a second solenoid valve (YV2) that can control the start and stop of the two pneumatic motors (3) respectively; the power module (PS) converts the mains power into DC power to power the system, while the air switch (QF) is used to control the connection and disconnection between the power module (PS) and the mains power; the first proximity switch (SQ1) is connected in series with the coil of the first intermediate relay (KM1) and then connected to... Between the positive and negative terminals of the power module (PS), the second proximity switch (SQ2) is connected in series with the coil of the second intermediate relay (KM2) and then connected between the positive and negative terminals of the power module (PS); the power terminals of the first time relay (KT1) and the second time relay (KT2) are both connected to the positive and negative terminals of the power module (PS), and the common point of the first time relay (KT1) and the second time relay (KT2) is connected in series with the first push-button switch (SB1) and the second push-button switch (SB2) and then connected to the positive terminal of the power module (PS). The first time relay (KT1) and... The normally closed terminal of the second time relay (KT2) is connected in series with the first solenoid valve (YV1) and the second solenoid valve (YV2), and then connected to the negative terminal of the power supply module (PS). The normally open terminals of the first time relay (KT1) and the second time relay (KT2) are connected in parallel and then connected in series with the audible and visual alarm (SA), which is then connected to the negative terminal of the power supply module (PS). The actuating terminal of the first intermediate relay (KM1) is connected between the two reset terminals of the first time relay (KT1), and the actuating terminal of the second intermediate relay (KM2) is connected between the two reset terminals of the second time relay (KT2).

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