Multi-machine online auto-induction printing and cutting system

Abstract

The utility model discloses an automatic induction printing and cutting system of a multi-split machine, relates to the technical field of printing and cutting of films, and solves the problem that normal work of a photoelectric inductor in an existing printing and cutting system is easily influenced by external environment interference. The device comprises an unwinding work station, a cutting work station, a drying work station and a printing work station, buffer areas are formed between the cutting work station and the drying work station and between the drying work station and the printing work station at proper intervals, and reflecting plates and photoelectric sensors for monitoring the position of a material belt are arranged in the buffer areas. And the photoelectric sensor is in signal connection with a control system for controlling the unwinding work station, the cutting work station, the drying work station and the printing work station to work. The drooping height and position of a material roll can be monitored through the photoelectric sensor, the anti-interference capability of the photoelectric sensor can be enhanced through the reflector, the photoelectric sensor is matched with the reflector to reduce interference of ambient light and reflected light of surrounding objects, the reflector can ensure stable reflection of light, and the photoelectric sensor can work reliably.

Description

Technical Field

[0001] This utility model relates to the field of film printing and cutting technology, and in particular to a multi-machine online automatic induction printing and cutting system. Background Technology

[0002] The existing printing and cutting system disclosed in CN219133554U uses a photoelectric sensor to monitor the height of the conveyor belt drooping between two adjacent stations, i.e., the distance from the ground. The product, suspended between the third and fourth buffer stations, has a certain height. During cutting at the cutting station, the dried product continues to move at a constant speed towards the third buffer station. At this point, the product is very close to the ground. When it reaches the lowest position monitored by the photoelectric sensor, the sensor sends a command to the cutting station to cut quickly. During rapid cutting, the suspended dried product rises rapidly to the set highest point. At this point, the photoelectric sensor again sends a command to the cutting station to cut slowly, and this cycle continues. The speed of the drive motor is also coordinated with the cutting speed of the cutting station. When the photoelectric sensor commands the cutting station to cut quickly, the drive motor speeds up; when the photoelectric sensor commands the cutting station to cut slowly, the drive motor speeds down.

[0003] Since photoelectric sensors monitor the height of a product by emitting and receiving reflected light signals, they are easily affected by external ambient light and reflected light from surrounding objects. This can lead to misjudgments by the photoelectric sensor, or even prevent it from accurately monitoring the height and position of the product, thus affecting the printing and cutting of the product. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a multi-machine online automatic induction printing and cutting system, which solves the problem that photoelectric sensors in existing printing and cutting systems are easily affected by external environmental interference, thus affecting their normal operation.

[0005] To achieve the above objectives, the technical solution of this utility model is a multi-unit automatic induction printing and cutting system, comprising an unwinding station, a cutting station, a drying station, and a printing station. The unwinding station is used to unwind the material strip. A buffer zone is formed between the cutting station and the drying station, and between the drying station and the printing station, at appropriate distances. A reflector and a photoelectric sensor for monitoring the position of the material strip are provided in the buffer zone. The photoelectric sensor is used to monitor the height of the drooping material strip in the buffer zone. The reflector is located above or below the photoelectric sensor, and the reflective surface of the reflector faces the material strip. The photoelectric sensor is signal-connected to the control system that controls the operation of the unwinding station, the cutting station, the drying station, and the printing station.

[0006] Preferably, a fixed bracket is provided in the buffer area, and a pole is provided on the fixed bracket. The photoelectric sensor and the reflector are movably mounted on the pole.

[0007] Preferably, the pole is provided with two fixed sleeves that can slide up and down relative to the pole, and the photoelectric sensor and the reflector are respectively fixedly installed on the two fixed sleeves.

[0008] Preferably, the fixing sleeve is threaded with a locking member, which can pass through the fixing sleeve and abut against the upright.

[0009] Preferably, the upright is a round rod.

[0010] Preferably, the fixed bracket has an adjustment groove along its length, and the upper end of the upright is movably disposed within the adjustment groove.

[0011] Preferably, a sealing plate is installed at the end of the fixed bracket.

[0012] Preferably, a protective plate is provided below the buffer zone.

[0013] Its advantages over existing technologies are:

[0014] In this invention, a buffer zone is formed between two adjacent workstations. Within this buffer zone, the material roll droops and bends to a certain length. A photoelectric sensor monitors the droop height and position of the material roll. A reflector positioned above or below the photoelectric sensor enhances its anti-interference capability. The photoelectric sensor, in conjunction with the reflector, reduces interference from ambient light and reflected light from surrounding objects. Because only reflected light from the reflector is received by the sensor, false readings caused by stray light are effectively avoided. In environments with poor lighting, high dust levels, or vibration, the reflector ensures stable light reflection, enabling the photoelectric sensor to operate reliably. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the printing and cutting system in this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the photoelectric sensor and reflector in the buffer zone.

[0017] In the diagram, 1 is the cutting station; 2 is the drying station; 3 is the printing station; 4 is the winding station; 5 is the unwinding station; 6 is the fixed bracket; 7 is the photoelectric sensor; 8 is the reflector; 9 is the upright; 10 is the sealing plate; 11 is the fixing sleeve; and 12 is the locking component. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] like Figure 1 As shown, a preferred embodiment of this utility model proposes an automatic induction printing and cutting system for multi-unit printing presses. The printing and cutting system mainly includes unwinding station 5, cutting station 1, drying station 2, printing station 3, and rewinding station 4.

[0020] Specifically, refer to Figure 1 From left to right, the stations are: unwinding station 5, cutting station 1, drying station 2, printing station 3, and rewinding station 4. The rewinding station 4 has a rewinding shaft for winding the material strip. The material strip is wound up and placed on the unwinding station 5, then passes through the printing station 3, drying station 2, and cutting station 1 in sequence, and finally is wound up on the rewinding shaft.

[0021] Printing station 3 is used to print the products to be processed, and drying station 2 is used to dry the printed products. The previously printed products arrive at drying station 2 for heating. After heating for a set time, they leave drying station 2. At this time, the printing process on the dried products is completely dried. There is a motor in drying station 2 that moves at a constant speed. The motor in drying station 2 drives the products to be processed to printing station 3 for printing. Cutting station 1 is used to cut the dried products.

[0022] After the product on the roll is cut off, only the strip remains. Finally, the strip is wound up by a rewinding shaft.

[0023] As shown in the figure, a buffer zone is formed between cutting station 1 and drying station 2, and between drying station 2 and printing station 3, at a certain distance. This buffer zone is used to buffer the material rolls. The distance between each station is adjustable, that is, the size of the buffer zone is adjustable.

[0024] refer to Figure 1 , Figure 2 A photoelectric sensor 7 and a reflector 8 are installed within the buffer zone. The photoelectric sensor 7 is typically mounted on a pole 9, which in turn is mounted on a fixed bracket 6. The fixed bracket 6 is made of profile material with an adjustment groove formed on its outer surface. The adjustment groove extends along the length of the fixed bracket 6, and the upper end of the pole 9 is installed within the adjustment groove. The lateral position of the pole 9 can be adjusted through the adjustment groove to adjust the position of the photoelectric sensor 7 and the reflector 8.

[0025] A sealing plate 10 is installed at the end of the fixed bracket 6 to seal the end of the fixed bracket 6 and prevent the upright 9 from sliding out of the adjustment groove.

[0026] refer to Figure 2 Two fixing sleeves 11 are fitted onto the upright 9, and the photoelectric sensor 7 and the reflector 8 are respectively fixedly installed on the two fixing sleeves 11. The fixing sleeves 11 and the upright 9 are slidably connected vertically, so the vertical position and distance between the photoelectric sensor 7 and the reflector 8 can be adjusted. The reflector 8 is generally above or below the photoelectric sensor 7. In this embodiment, it is preferred to place the reflector 8 at an appropriate position below the photoelectric sensor 7, and the width of the reflector 8 is not less than the width of the material roll.

[0027] The reflector 8 helps enhance the anti-interference capability of the photoelectric sensor 7. The photoelectric sensor, in conjunction with the reflector 8, reduces interference from ambient light and reflected light from surrounding objects. Because only reflected light from the reflector 8 is received by the sensor, misjudgments caused by stray light are effectively avoided. In environments with poor lighting, high dust levels, or vibration, the reflector 8 ensures stable light reflection, enabling the photoelectric sensor to operate reliably.

[0028] The fixed sleeve 11 is provided with a threaded hole, the locking member 12 is threadedly connected to the threaded hole, and can pass through the threaded hole to abut against the upright 9, thereby fixing the fixed sleeve 11 to the upright 9.

[0029] In this embodiment, the upright 9 is a round rod, so the fixing sleeve 11 can rotate relative to the upright 9 in order to adjust the relative angle between the photoelectric sensor 7 and the reflector 8 and the material roll.

[0030] After the material roll passes through the corresponding workstation and reaches the buffer zone, it droops and rests on the fixed support 6 and the driven shaft at the front of the workstation. The drooping portion of the material roll is the length of the buffer. The photoelectric sensor 7 monitors the height of the drooping portion of the material roll to determine the length of the material roll buffer. Below the buffer zone is a protective plate 13 to prevent excessive drooping of the material roll from contaminating the product on the ground.

[0031] In actual operation, when the material roll hanging in the buffer reaches the lowest position monitored by photoelectric sensor 7, photoelectric sensor 7 sends an instruction to the control system of cutting station 1 to cut quickly. When cutting quickly, the hung and dried product rises rapidly. When it reaches the set highest point, photoelectric sensor 7 sends an instruction to the control system of cutting station 1 again to cut slowly. This cycle continues. The unwinding speed of unwinding station 5 is also coordinated with the cutting speed of cutting station 1. When photoelectric sensor 7 sends an instruction to the control system of cutting station 1 to cut quickly, the unwinding speed of unwinding station 5 increases. When photoelectric sensor 7 sends an instruction to the control system of cutting station 1 to cut slowly, the unwinding speed of unwinding station 5 also decreases.

[0032] Because the entire printing and cutting system production line is long, during online operation, multiple layers of materials are used and multiple machines are used at the same time. If there is a shortage of material or one machine stops, the drooping height of the material roll in a certain buffer zone will gradually rise until it is no longer above the monitoring height of the photoelectric sensor 7. At this time, the photoelectric sensor 7 will trigger a signal and send it to the control system, causing the entire printing and cutting system to stop.

[0033] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A multi-machine on-line automatic induction printing and cutting system comprising a unwinding station (5) for unwinding a material tape, a cutting station (1), a drying station (2) and a printing station (3), characterized in that, The cutting station (1) and the drying station (2) and the printing station (3) are separated by a proper distance to form a buffer area, a light-reflecting plate (8) and a photoelectric sensor (7) are arranged in the buffer area, the photoelectric sensor (7) is used for monitoring the height of the sagging material belt in the buffer area, the light-reflecting plate (8) is arranged above or below the photoelectric sensor (7), and the light-reflecting surface of the light-reflecting plate (8) faces the material belt, the photoelectric sensor (7) is signal-connected with a control system for controlling the unwinding station (5), the cutting station (1), the drying station (2) and the printing station (3).

2. A multi-machine on-line automatic inductive printing and cutting system according to claim 1, characterized in that, A fixing support (6) is arranged in the buffer area, a vertical rod (9) is arranged on the fixing support (6), and the photoelectric sensor (7) and the light-reflecting plate (8) are movably arranged on the vertical rod (9).

3. A multi-machine on-line automatic inductive printing and cutting system according to claim 2, characterized in that, Two fixing sleeves (11) capable of sliding up and down relative to the vertical rod (9) are arranged on the vertical rod (9), and the photoelectric sensor (7) and the light-reflecting plate (8) are respectively fixedly arranged on the two fixing sleeves (11).

4. A multi-machine on-line automatic inductive printing and cutting system according to claim 3, characterized in that, A locking piece (12) is threadedly connected to the fixing sleeve (11), and the locking piece (12) is capable of abutting against the vertical rod (9) through the fixing sleeve (11).

5. A multi-machine on-line automatic inductive printing and cutting system according to claim 3, wherein, The vertical rod (9) is a round rod.

6. A multi-machine on-line automatic inductive printing and cutting system according to claim 2, wherein, An adjusting groove is formed in the length direction of the fixing support (6), and the upper end of the vertical rod (9) is movably arranged in the adjusting groove.

7. A multi-machine on-line automatic inductive printing and cutting system according to claim 6, characterized in that, An end plate (10) is arranged on the end of the fixing support (6).

8. The multi-machine online automatic inductive printing and cutting system according to claim 1, wherein, A protection plate (13) is arranged below the buffer area.

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