A device for detecting dropped parts on a conveyor line

Abstract

The present invention discloses a conveyor line drop detection device, comprising a chassis installed below the conveyor line, a plurality of spring sheet assemblies and a control device, wherein the chassis is provided with a connecting plate, the plurality of spring sheet assemblies are arranged on the connecting plate, any of the spring sheet assemblies comprises two spring sheets and an anti-drop rod arranged between the two spring sheets, and the spring sheet assembly is electrically connected to the control device. The purpose of the present invention is to provide a conveyor line drop detection device, which solves the technical problem that a large workpiece drops, causing continuous scraping of the workpiece or even chain jamming, which affects the quality of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a device for detecting dropped parts on a conveying line. Background Art

[0002] In the workpiece conveyor line system, workpieces often fall during transportation due to jitter, hanger loss or collision. If the workpiece is small, it will not affect the transportation and you can ignore it. But if the workpiece is large, the fallen workpiece will hinder the workpiece behind, causing continuous scratches on the workpiece, affecting the quality of the workpiece, and even causing the chain to get stuck, causing damage to the conveyor line itself and affecting production. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a conveyor line dropped workpiece detection device, which solves the technical problem that large workpieces fall, causing continuous scratches on the workpieces or even chain jams, thus affecting the quality of the workpieces.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a conveyor line dropped parts detection device, including a base frame installed under the conveyor line, a plurality of spring clip assemblies and a control device, the base frame is provided with a connecting plate, and the plurality of spring clip assemblies are arranged on the connecting plate, any of the spring clip assemblies includes two spring clips and an anti-drop rod arranged between the two spring clips, and the spring clip assembly is electrically connected to the control device.

[0005] Furthermore, the base frame includes a plurality of angle steel brackets, which are evenly spaced and opposite to each other, and any of the angle steel brackets is bolted to the connecting plate.

[0006] Furthermore, the control device adopts PLC.

[0007] Furthermore, the spring sheet assemblies are evenly spaced and arranged on the connecting plate in pairs, and the spring sheet assemblies are bolted to the connecting plate.

[0008] Furthermore, an insulating washer is provided between the spring sheet and the bolt.

[0009] Furthermore, the shape of the anti-drop rod is any one of regular shapes such as circle, ellipse, triangle, square, rectangle, pentagon, hexagon, etc., or the shape of the anti-drop rod is other irregular shapes.

[0010] Furthermore, it also includes an execution device, which is controlled by the control device.

[0011] The advantages of the present invention are:

[0012] The dropped parts detection device of the present invention performs dropped parts detection on the conveyor line and automatically detects dropped parts, which is superior to manual patrol monitoring, saves time and effort, and avoids the dropped workpieces from obstructing the following workpieces, causing continuous scratches on the workpieces and affecting the quality of the workpieces. It also avoids the situation of chain jamming and will not cause damage to the conveyor line itself, thereby improving production efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a working schematic diagram of the present invention.

[0016] Figure 3 It is a schematic diagram of the original state of the spring element assembly of the present invention.

[0017] Figure 4 It is a working schematic diagram of the shrapnel assembly of the present invention.

[0018] in:

[0019] 1. Dropped parts detection device; 2. Angle steel bracket; 3. Bolts; 4. Connecting plate; 5. Insulating gasket; 6. Anti-drop rod; 7. Shrapnel; 8. Conveyor line; DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 A conveyor line dropped parts detection device shown in the figure includes a base frame, a plurality of spring clip 7 assemblies and a control device, the base frame includes a plurality of angle steel brackets 2, the plurality of angle steel brackets 2 are evenly spaced and opposite to each other, any of the angle steel brackets 2 is connected to the connecting plate 4 by a bolt 3, a connecting plate 4 is provided on the base frame, a plurality of spring clip 7 assemblies are arranged on the connecting plate 4, the spring clip 7 assemblies are evenly spaced and opposite to each other on the connecting plate 4, the spring clip 7 assemblies are connected to the connecting plate 4 by bolts 3, an insulating gasket 5 is also arranged between the spring clip 7 and the bolt 3, any of the spring clip 7 assemblies includes two spring clips 7 and an anti-drop rod 6 arranged between the two spring clips 7, the spacing between the anti-drop rods 6 and the anti-drop rods 6 is determined by the length of the workpiece, the spring clip 7 assembly is electrically connected to the control device, and the control device adopts PLC.

[0024] The shape of the anti-drop rod 6 is any one of regular shapes such as circle, ellipse, triangle, square, rectangle, pentagon, hexagon, etc., or the shape of the anti-drop rod 6 is other irregular shapes; the diameter of the anti-drop rod 6 depends on the weight of the workpiece, and the design size is based on the fact that the round steel is not easily bent; the material of the anti-drop rod 6 is not limited to steel, any other material that meets the requirements can be used, and the anti-drop rod 6 can be solid or hollow, and the above parameters are set according to actual conditions.

[0025] The device can be installed on the entire line or partially according to site requirements. The length of the device is determined by the length of the conveyor line 8, and the width is determined by the width of the workpiece.

[0026] The dropped component detection device of the present invention further comprises an execution device.

[0027] In some embodiments, the execution device includes an alarm; the alarm is controlled by the control device.

[0028] The solution of the present application can realize the alarm function. When the PLC receives the electrical signal that the two spring pieces 7 are cut off, the PLC sends a control signal to the alarm to start the alarm and start the alarm.

[0029] In some embodiments, the execution device includes an emergency stop switch; the emergency stop switch is controlled by the control device.

[0030] The emergency stop switch adopts a relay; the movable contact of the relay is connected to the power supply circuit of the conveying line 8.

[0031] The solution of the present application can realize the line stopping function. When the PLC receives the electrical signal that the two spring pieces 7 are cut off, the PLC controls the relay to disconnect the movable contact, thereby cutting off the power supply of the conveyor line 8 and causing the conveyor line 8 to stop urgently.

[0032] How it works:

[0033] All the above-mentioned driving parts (referring to power elements), electrical components and adapted power supplies are connected through wires. The specific connection means should refer to the following working principle. The electrical connection is completed in the order of working in sequence between the electrical components. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0034] like Figure 2 As shown, the dropped component detection device 1 of the present invention is installed directly below the conveyor line 8. As shown in the figure, when no dropped components occur, the anti-drop rod 6 is clamped by two spring sheets 7, and the two spring sheets 7 are in a conducting state. Figure 3 As shown, when the hanging chain drops a piece, the anti-drop rod 6 moves downward due to the impact of the falling workpiece, so that the two spring pieces 7 are separated, and there is no contact between the two spring pieces 7, so that the two spring pieces 7 are not conductive. The above state is as shown in FIG. Figure 4 As shown, the dropped parts detection device 1 is used to detect the dropped workpiece. The current signal is sent to the PLC, the PLC receives the current signal and controls the action of the execution device. Whether the dropped parts occur can be determined by judging the conduction state between the two spring clips 7. The two spring clips 7 can be connected to the PLC individually, or multiple groups of spring clips 7 can be connected in series to form a point to connect to the PLC input point. In actual applications, the latter method is often used to save control costs.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveyor line dropped parts detection device, characterized in that: It includes a base frame installed below the conveyor line, a plurality of spring clip assemblies, a control device and an execution device. The base frame is provided with a connecting plate, and a plurality of spring clip assemblies are arranged on the connecting plate. Any of the spring clip assemblies includes two spring clips and an anti-drop rod arranged between the two spring clips. An insulating washer is also arranged between the spring clip and the bolt. The spring clip assembly is electrically connected to the control device, and the control device adopts PLC. The execution device is controlled by the control device. The dropped parts detection device is used to detect the falling of workpieces. The current signal is sent to the PLC, and the PLC receives the current signal and controls the action of the execution device. By judging the conduction state between the two spring pieces, it can be judged whether the dropped parts occur. That is, when the two spring pieces are in the conduction state, no dropped parts occur. When the two spring pieces are not conductive, dropped parts occur in the suspension chain.

2. A conveyor line dropped parts detection device according to claim 1, characterized in that: The base frame comprises a plurality of angle steel brackets, which are evenly spaced and opposite to each other, and any of the angle steel brackets is bolted to the connecting plate.

3. A conveyor line dropped parts detection device according to claim 1, characterized in that: The spring sheet assemblies are evenly spaced and arranged on the connection plate in pairs, and the spring sheet assemblies are connected to the connection plate with bolts.

4. A conveyor line dropped parts detection device according to claim 1, characterized in that: The shape of the anti-drop rod is any one of circular, elliptical, triangular, square, rectangular, pentagonal and hexagonal regular shapes.

Images