Printing and coating line iron sheet displacement alarm device

Abstract

A printing and coating line iron sheet displacement alarm device comprises two alarm sensors matched with the edges of an iron sheet, an adjusting mechanism used for adjusting the alarm sensors and a fixing frame, and the edges of the two sides of the iron sheet on a conveying belt are monitored through the alarm sensors; when the alarm sensors detect that the edges of the iron sheets exceed the straight line where the alarm sensors are located, the adjusting mechanisms are symmetrically installed on the fixing frame in pairs, the alarm sensors are installed on the adjusting mechanisms, and the distance between the alarm sensors is adjusted through the adjusting mechanisms so that the adjacent alarm sensors can be matched with the two sides of the iron sheets of different sizes. Therefore, the positions of the iron sheets with different sizes can be conveniently monitored, and the application range of the alarm device is widened.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing devices, and in particular relates to an iron sheet movement alarm device for a printing and coating line. Background Art

[0002] When making tinplate cans, the sheet metal is transported via a conveyor belt to a welding machine, where it is welded to the edges of the sheet metal. A coating is sprayed onto the sheet metal, creating a painted area. An unpainted weld zone surrounds the painted area. The welding machine typically welds these welded areas to form the can body. However, the weld zone on the edge of the sheet metal is relatively narrow, necessitating a high level of positional accuracy between the sheet metal and the conveyor belt. Currently, the position of the sheet metal on the conveyor belt is often inspected by stopping the machine for random inspections. However, due to the high speed of the conveyor belt, inspections are often missed, leading to leaks in the can body.

[0003] The utility model application number 202322258761.4 discloses a shoe needle detection alarm device, comprising a frame, a translation assembly, a detection assembly, and a controller. The translation assembly is driven by a power assembly to move on both sides of the frame. A transmission assembly is provided on the top of the translation assembly, and the transmission assembly includes a conveyor belt, and the surface of the conveyor belt is provided with a plurality of scale belts marked with scales; a U-shaped frame is fixed on the top of the translation assembly, and a detection assembly is provided at the bottom of the U-shaped frame. The detection assembly detects metal needles in the shoe; and a plurality of marking assemblies and a plurality of grabbing assemblies are provided on the left and right sides of the U-shaped frame. The above alarm device has the following main deficiencies: (1) detection is performed by a CCD industrial camera, and the detection efficiency is relatively low; (2) the position of the detection assembly cannot be adjusted. Summary of the Invention

[0004] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a printing and coating line iron sheet movement alarm device, which is used to efficiently detect the position of the iron sheet on the conveying device. At the same time, the position of the detection device can be adjusted according to the size of the iron sheet to be suitable for the conveying position detection of iron sheets of different sizes.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A printing and coating line iron sheet movement alarm device is used to detect the movement of iron sheets on a conveyor belt. It includes an alarm sensor adapted to the edge of the iron sheet, an adjustment mechanism and a fixed frame for adjusting the alarm sensor. The adjustment mechanism is symmetrically installed in pairs on the fixed frame, and the alarm sensor is installed on the adjustment mechanism. The spacing between the alarm sensors is adjusted by the adjustment mechanism so that adjacent alarm sensors are adapted to the two sides of iron sheets of different sizes.

[0007] As a preferred solution of the present invention, the adjustment mechanism includes an adjustment block and an adjustment rod. The adjustment block is slidably mounted on the fixed frame. The adjustment rod is connected to the adjustment block through a thread. The adjustment block is driven to slide by the adjustment rod. The alarm sensor is installed on the adjustment block.

[0008] As a preferred solution of the present invention, the adjusting rod is provided with a hand wheel for driving the adjusting rod to rotate.

[0009] As a preferred solution of the present invention, the fixing frame is provided with mounting plates arranged in pairs, the adjusting rods are rotatably mounted on the mounting plates, and the adjusting blocks are arranged between adjacent mounting plates.

[0010] As a preferred solution of the present invention, the fixing frame is provided with a guide groove for guiding the adjustment block, and the adjustment block is slidably connected to the fixing frame through the guide groove.

[0011] As a preferred solution of the present invention, a guide bar is provided on the adjusting block, and the guide bar is slidably connected to the guide groove.

[0012] As a preferred solution of the present invention, a mounting bracket is provided on the adjusting mechanism, and the alarm sensor is mounted on the adjusting mechanism through the mounting bracket.

[0013] As a preferred solution of the present invention, a pressing plate mechanism for pressing the iron sheet is installed on the fixing frame, and the pressing plate mechanism is arranged at the front end of the adjusting mechanism.

[0014] As a preferred solution of the present invention, the pressure plate mechanism includes a swing rod and a pressing piece. The swing rod is swingably mounted on the fixing frame, and the pressing piece is mounted on the swing rod. The pressing piece presses the iron sheet by its own weight.

[0015] As a preferred solution of the present invention, the pressing member includes a connecting shaft connected to the swing rod and a roller for pressing the iron sheet, the roller is mounted on the connecting shaft, and the roller is arranged between adjacent alarm sensors.

[0016] The beneficial effects of the present invention are:

[0017] (1) The iron sheets used for canning are limited between adjacent alarm sensors to prevent the position of the iron sheets from shifting, ensuring the conveying accuracy of the iron sheets and thus preventing leakage in subsequent canning.

[0018] (2) The alarm sensor can monitor the position of the iron sheet in real time to ensure the continuity of the iron sheet position monitoring and prevent the cheap iron sheet from entering the next can making process.

[0019] (3) The relative position of the alarm sensor can be adjusted by adjusting the structure, thereby facilitating position monitoring of iron pieces of different sizes and improving the scope of application of the alarm device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of this device.

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure after rotating at a certain angle.

[0022] Figure 3 This is a partial enlarged view of point A.

[0023] Figure markings: conveyor belt 1, iron sheet 2, alarm sensor 3, adjustment mechanism 4, adjustment block 4-1, adjustment rod 4-2, handwheel 4-3, guide bar 4-4, mounting frame 4-5, eccentric wheel 4-6, fixing frame 5, mounting plate 5-1, guide groove 5-2, pressure plate mechanism 6, swing rod 6-1, roller 6-2, connecting shaft 6-3. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] A printing and coating line iron sheet movement alarm device includes two alarm sensors 3 adapted to the edges of the iron sheet 2, an adjustment mechanism 4 and a fixed frame 5 for adjusting the alarm sensors 3. The alarm sensors 3 are used to monitor the edges of the iron sheet 2 on the conveyor belt 1. When the alarm sensor 3 detects that the edge of the iron sheet 2 exceeds the straight line where the alarm sensor 3 is located, an alarm is triggered. The adjustment mechanism 4 is symmetrically installed in pairs on the fixed frame 5, and the alarm sensor 3 is installed on the adjustment mechanism 4. The spacing between the alarm sensors 3 is adjusted by the adjustment mechanism 4 to make adjacent alarm sensors 3 adapted to the two sides of iron sheets 2 of different sizes, thereby facilitating position monitoring of iron sheets of different sizes and improving the scope of application of the alarm device.

[0026] The adjusting mechanism 4 includes an adjusting block 4-1 and an adjusting rod 4-2. A pair of mounting plates 5-1 are provided on the fixing frame 5. The adjusting rod 4-2 is rotatably mounted on the mounting plates 5-1. The adjusting block 4-1 is arranged between adjacent mounting plates 5-1. The adjusting rod 4-2 is connected to the adjusting block 4-1 through a thread. The adjusting block 4-1 is driven to slide by the adjusting rod 4-2. The alarm sensor 3 is installed on the adjusting block 4-1.

[0027] In order to facilitate the adjustment rod 4-2 to drive the adjustment block 4-1, a handwheel 4-3 for driving the adjustment rod 4-2 to rotate is provided on the adjustment rod 4-2. The adjustment rod 4-2 and the adjustment block 4-1 are a screw slider structure. By rotating the adjustment rod 4-2, the adjustment block 4-1 is driven to translate, thereby driving the alarm sensor 3 installed on the adjustment block 4-1 to move.

[0028] In order to ensure the translation accuracy of the adjustment block 4-1, a guide groove 5-2 is provided on the fixing frame 5, and a guide bar 4-4 is provided on the adjustment block 4-1. The guide bar 4-4 is slidably connected to the guide groove 5-2. The guide bar 4-4 and the guide groove 5-2 cooperate to provide guidance for the movement of the adjustment block 4-1, thereby improving the movement accuracy of the adjustment block 4-1.

[0029] In some preferred embodiments, guide rails are provided on both inner walls of the guide groove 5-2, and sliders are provided on both side walls of the guide bar 4-4, and the guide groove 5-2 and the guide bar 4-4 are slidably connected by the slide rails and the sliders.

[0030] The adjustment mechanism 4 is provided with a mounting bracket 4-5, and the alarm sensor 3 is mounted on the adjustment block 4-1 via the mounting bracket 4-5. Preferably, an eccentric wheel 4-6 is mounted on one side of the mounting bracket 4-5, and the side wall of the eccentric wheel 4-6 abuts against the side wall of the mounting bracket 4-5, so that the position of the mounting bracket 4-5 can be adjusted by rotating the eccentric wheel 4-6. Preferably, the mounting bracket 4-5 is provided with two screws for fixing the mounting bracket 4-5 to the adjustment block 4-1, and the eccentric wheel 4-6 is located on one side of the screws. When adjusting the installation angle of the mounting bracket 4-5, the two screws are first loosened, and the position of the mounting bracket 4-5 is adjusted by rotating the eccentric wheel 4-6, so that the alarm sensors 3 on two adjacent adjustment mechanisms 4 are parallel to each other.

[0031] The fixing frame 5 has a U-shaped structure, and a pressure plate mechanism 6 is provided between the two side walls of the fixing frame 5. The pressure plate mechanism 6 is arranged at the front end of the adjusting mechanism 4 and is used to press the iron sheet 2 to prevent the iron sheet 2 from being displaced during the transportation of the iron sheet 2 by the conveyor belt 1.

[0032] The pressure plate mechanism 6 includes a swing rod 6-1 and a pressing piece. One end of the swing rod 6-1 is rotatably mounted on the fixed frame 5, and the pressing piece is mounted on the other end of the swing rod 6-1, so that the swing rod 6-1 can swing relative to the fixed frame 5 and press the iron sheet 2 by the weight of the pressing piece.

[0033] In order to prevent the occurrence of active friction between the pressing piece and the iron sheet 2, the pressing piece includes a connecting shaft 6-3 connected to the swing rod 6-1 and a roller 6-2 for pressing the iron sheet 2. The roller 6-2 is installed on the connecting shaft 6-3. The roller 6-2 can rotate relative to the connecting shaft 6-3, thereby reducing the occurrence of friction between the pressing piece and the iron sheet 2. The roller 6-2 is arranged between adjacent alarm sensors 3. Preferably, the roller 6-2 is located between adjacent mounting plates 5-1 for installing two adjustment mechanisms 4 to prevent the alarm sensor 3 from facing the roller 6-2 and causing an alarm.

[0034] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A printing and coating line iron sheet movement alarm device, used for detecting the movement of an iron sheet (2) on a conveyor belt (1), characterized in that: The invention comprises an alarm sensor (3) adapted to the edge of the iron sheet (2), an adjusting mechanism (4) for adjusting the alarm sensor (3), and a fixing frame (5), wherein the adjusting mechanism (4) is symmetrically mounted on the fixing frame (5) in pairs, and the alarm sensor (3) is mounted on the adjusting mechanism (4), and the spacing between the alarm sensors (3) is adjusted by the adjusting mechanism (4) so ​​that adjacent alarm sensors (3) are adapted to the two sides of the iron sheet (2) of different sizes.

2. The iron sheet movement alarm device for a printing and coating line according to claim 1, characterized in that: The adjusting mechanism (4) comprises an adjusting block (4-1) and an adjusting rod (4-2); the adjusting block (4-1) is slidably mounted on a fixing frame (5); the adjusting rod (4-2) is connected to the adjusting block (4-1) via a thread; the adjusting block (4-1) is driven to slide by the adjusting rod (4-2); and the alarm sensor (3) is mounted on the adjusting block (4-1).

3. The iron sheet movement alarm device for a printing and coating line according to claim 2, characterized in that: The adjusting rod (4-2) is provided with a hand wheel (4-3) for driving the adjusting rod (4-2) to rotate.

4. The iron sheet movement alarm device for a printing and coating line according to claim 2, characterized in that: The fixing frame (5) is provided with mounting plates (5-1) arranged in pairs, the adjusting rods (4-2) are rotatably mounted on the mounting plates (5-1), and the adjusting blocks (4-1) are arranged between adjacent mounting plates (5-1).

5. The iron sheet movement alarm device for a printing and coating line according to claim 2, characterized in that: The fixing frame (5) is provided with a guide groove (5-2) for guiding the adjustment block (4-1), and the adjustment block (4-1) is slidably connected to the fixing frame (5) via the guide groove (5-2).

6. The iron sheet movement alarm device for a printing and coating line according to claim 5, characterized in that: A guide bar (4-4) is provided on the regulating block (4-1), and the guide bar (4-4) is slidably connected to the guide groove (5-2).

7. The iron sheet movement alarm device for a printing and coating line according to claim 1, characterized in that: The regulating mechanism (4) is provided with a mounting frame (4-5), and the alarm sensor (3) is mounted on the regulating mechanism (4) via the mounting frame (4-5).

8. The iron sheet movement alarm device for a printing and coating line according to claim 1, characterized in that: A pressing plate mechanism (6) for pressing the iron sheet (2) is installed on the fixing frame (5), and the pressing plate mechanism (6) is arranged at the front end of the adjusting mechanism (4).

9. The iron sheet movement alarm device for a printing and coating line according to claim 8, characterized in that: The pressing plate mechanism (6) comprises a swinging rod (6-1) and a pressing piece. The swinging rod (6-1) is swingably mounted on the fixing frame (5). The pressing piece is mounted on the swinging rod (6-1) and presses the iron sheet (2) by the weight of the pressing piece.

10. The iron sheet movement alarm device for a printing and coating line according to claim 9, characterized in that: The pressing member comprises a connecting shaft (6-3) connected to the swing rod (6-1) and a roller (6-2) for pressing the iron sheet (2); the roller (6-2) is mounted on the connecting shaft (6-3); and the roller (6-2) is arranged between adjacent alarm sensors (3).

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