Collecting chain proximity switch triggering device

Abstract

The utility model discloses a proximity switch triggering device for a collecting chain, relates to the field of steel rolling bars, and solves the technical problems of inconvenience in cleaning and inaccurate detection in a manner of detecting whether steel exists on a second chain or not by an existing light curtain sensor. The device comprises a fixing plate, a steel bar triggering structure, a triggering rod and a proximity switch, the fixing plate is fixedly installed on one side of a second chain, a rotating shaft is rotationally installed on the fixing plate and fixedly connected with the triggering rod, and a connecting shaft is arranged at the end, close to a steel bar, of the triggering rod and fixedly connected with the steel bar. A steel bar triggering structure is detachably installed on the side, close to the second chain, of the connecting shaft and located on the moving path of the steel bar, and the proximity switch is arranged on the rotating path of one side of the triggering rod. According to the utility model, the mechanical triggering reduces the maintenance cost of the original light curtain sensor mode, and improves the triggering stability.

Description

Technical Field

[0001] The utility model relates to the field of rolled steel bars, and more specifically, it relates to a triggering device for a collecting chain proximity switch. Background Art

[0002] To avoid the phenomenon of the bundle shape of the bars being twisted after collection, there is currently a set of induction equipment for the operation of the collecting chain to ensure that the steel bars on the chain are laid flat in a single layer. This set of equipment includes a light curtain sensor installed between the second chain and the third chain of the transfer bench. This light curtain sensor is used to detect whether there is steel on the second chain. Through the cooperation of the counting machine program and the cold bed collection PLC program, the automatic small-step program of the third chain of the transfer bench is completed according to the result of whether there is steel on the second chain.

[0003] However, the light curtain sensor is installed below the second chain. During the working process, dust will fall on the upper part of the light curtain sensor, which is likely to cause inaccurate detection of the light curtain sensor, resulting in steel accumulation. After the steel accumulates, it will be twisted. Therefore, it is necessary to frequently clean the dust above the light curtain sensor. However, the screen of the light curtain sensor is easily scratched during the cleaning process, resulting in inaccurate detection. Finally, only a new spare part of the light curtain sensor can be replaced. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a triggering device for a collecting chain proximity switch aiming at the deficiencies of the prior art, and solve the technical problems that the existing method of using a light curtain sensor to detect whether there is steel on the second chain is inconvenient to clean and has inaccurate detection.

[0005] A triggering device for a collecting chain proximity switch described in the utility model includes a fixing plate, a steel bar triggering structure, a triggering rod and a proximity switch. The fixing plate is fixedly installed on one side of the second chain. A rotating shaft is rotatably installed on the fixing plate. The rotating shaft is fixedly connected with the triggering rod. A connecting shaft is provided at one end of the triggering rod close to the steel bar. A steel bar triggering structure is detachably installed on one side of the connecting shaft close to the second chain. The steel bar triggering structure is located on the moving path of the steel bar. The proximity switch is arranged on the rotating path on one side of the triggering rod.

[0006] For further improvement, the triggering rod includes a main rod, a hollow shaft, a bottom plate and two support rods. The bottom of the main rod is fixedly connected with the hollow shaft. The hollow shaft is fixedly connected with the rotating shaft. The bottom of the hollow shaft is fixedly connected with the bottom plate through two support rods.

[0007] Furthermore, the bottom plate is an arc-shaped plate, and the weight of the bottom plate is greater than the weight of the triggering rod above the hollow shaft.

[0008] Further, a first installation groove is formed at one end of the connecting shaft close to the second chain. The steel bar triggering structure includes a stop bar and a mounting seat. One end of the stop bar is fixedly installed on the mounting seat, and the other end of the stop bar is located on the moving path of the steel bar. The mounting seat is installed in the first installation groove through bolts.

[0009] Further, one end of the trigger rod close to the steel bar is fixedly connected to the connecting shaft.

[0010] Beneficial effects

[0011] The advantages of the present utility model are as follows:

[0012] The present utility model is provided with a controller, a fixing plate, a steel bar triggering structure, a trigger rod, a proximity switch and a reset structure. The steel bar on the second chain triggers the steel bar triggering structure. The steel bar triggering structure drives the trigger rod to rotate through the connecting shaft installed on the fixing plate. The trigger rod triggers the proximity switch, so as to realize the detection of the steel on the second chain. The mechanical trigger reduces the maintenance cost of the original light curtain sensor method and improves the detection stability. Description of the drawings

[0013] Figure 1 It is a schematic diagram of the on-site installation of the triggering device of the present utility model;

[0014] Figure 2 It is a side view of the triggering device of the present utility model;

[0015] Figure 3 It is a schematic structural diagram of the trigger rod of the present utility model.

[0016] Wherein: 1 - fixing plate, 2 - proximity switch, 3 - second chain, 4 - trigger rod, 41 - main rod, 42 - hollow shaft, 43 - bottom plate, 44 - support rod, 5 - connecting shaft, 6 - first installation groove, 7 - stop bar, 8 - mounting seat, 9 - steel bar, 10 - bolt, 11 - rotating shaft. Specific embodiments

[0017] The following combines the embodiments to further describe the present utility model, but does not constitute any limitation to the present utility model. Any limited modifications made by anyone within the scope of the claims of the present utility model are still within the scope of the claims of the present utility model.

[0018] Refer to Figures 1 - 3, A collecting chain proximity switch triggering device, which includes a fixing plate 1, a steel rod triggering structure, a triggering rod 4 and a proximity switch 2. The fixing plate 1 is fixedly installed on one side of the second chain 3. One end of the triggering rod 4 close to the steel rod 9 is provided with a connecting shaft 5, and the end of the triggering rod 4 close to the steel rod 9 is fixedly connected to the connecting shaft 5. A steel rod triggering structure is detachably installed on the side of the connecting shaft 5 close to the second chain 3. The steel rod triggering structure is located on the moving path of the steel rod 9. A rotating shaft 11 is provided on the fixing plate 1, and the rotating shaft 11 is fixedly connected to the triggering rod 4. The proximity switch 2 is fixedly installed on the path close to the rotation of the triggering rod 4, and the proximity switch 2 is electrically connected to the controller. The purpose of setting the rotating shaft 11 is to make the triggering rod 4 rotate and swing in a suitable direction to trigger the proximity switch 2.

[0019] After the steel rod 9 collides with the steel rod triggering structure, it pushes the steel rod triggering structure. The steel rod triggering structure drives the triggering rod 4 to rotate in the direction close to the proximity switch 2 through the connecting shaft 5, so that the triggering rod 4 triggers the proximity switch 2. The triggered proximity switch 2 sends a steel signal to the controller, indicating that there is steel on the second chain 3. The controller issues a signal for the third chain to run, and the third chain starts to convey.

[0020] A first installation groove 6 is opened at one end of the connecting shaft 5 close to the second chain 3. The steel rod triggering structure includes a stop rod 7 and a mounting seat 8. One end of the stop rod 7 is fixedly installed on the mounting seat 8, and the other end of the stop rod 7 is located on the moving path of the steel rod 9. The mounting seat 8 is installed in the first installation groove 6 through a bolt 10. The stop rod 7 is used to collide with the steel rod 9. By disassembling and installing the bolt 10, the purpose of detachably installing the steel rod triggering structure on the first installation groove 6 is achieved. When the stop rod 7 is damaged, the stop rod 7 can be replaced in time to achieve the flexibility of installation.

[0021] The triggering rod 4 includes a main rod 41, a hollow shaft 42, a bottom plate 43 and two support rods 44. The bottom of the main rod 41 is fixedly connected to the hollow shaft 42, the hollow shaft 42 is fixedly connected to the rotating shaft 11, and the bottom of the hollow shaft 42 is fixedly connected to the bottom plate 43 through two support rods 44. The bottom plate 43 is an arc-shaped plate, and the weight of the bottom plate 43 is greater than the weight of the triggering rod 4 above the hollow shaft 42. After the steel rod 9 does not contact the stop rod 7, the bottom plate 43 swings downward under the action of gravity, driving the triggering rod 4 and the steel rod triggering structure back to the original standby position.

[0022] The working principle of the present utility model is as follows: when the steel bar 9 conveyed on the second chain 3 collides with the stop bar 7, the steel bar 9 pushes the stop bar 7 to move, thereby driving the connecting shaft 5 to move by the stop bar 7. Due to the rotational installation of the trigger rod 4, the stop bar 7 and the connecting shaft 5 have a tendency to move downward while moving in the same direction as the steel bar 9, that is, the movement trajectories of the stop bar 7 and the connecting shaft 5 are arc-shaped movements. The connecting shaft 5 drives the trigger rod 4 to rotate towards the proximity switch 2. When the bottom plate 43 of the trigger rod 4 approaches the proximity switch 2 and is sufficient to trigger the proximity switch 2, the proximity switch 2 is triggered. The triggered proximity switch 2 sends a signal to the controller, which is a signal indicating the presence of steel, indicating that there is steel on the second chain 3. The controller issues a signal for the third chain to operate, and the third chain starts to convey. After the steel bar 9 passes by the stop bar 7 and does not contact the stop bar 7, due to the center of gravity of the trigger rod 4 being biased towards the bottom plate 43, the trigger rod 4 rotates and resets under the action of gravity, that is, the main rod 41 is in a vertical state, and the stop bar 7 and the main rod 41 are in a standby state for detecting the next steel bar 9.

[0023] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, which will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A collection chain proximity switch trigger device, characterized in that: The invention comprises a fixing plate (1), a steel rod trigger structure, a trigger rod (4) and a proximity switch (2). The fixing plate (1) is fixedly mounted on one side of a second chain (3). A rotating shaft (11) is rotatably mounted on the fixing plate (1). The rotating shaft (11) is fixedly connected to the trigger rod (4). A connecting shaft (5) is provided at one end of the trigger rod (4) close to the steel rod (9). A steel rod trigger structure is detachably mounted on one side of the connecting shaft (5) close to the second chain (3). The steel rod trigger structure is located on the moving path of the steel rod (9). The proximity switch (2) is arranged on the rotating path on one side of the trigger rod (4).

2. A collection chain proximity switch trigger device according to claim 1, characterized in that: The trigger rod (4) comprises a main rod (41), a hollow shaft (42), a bottom plate (43) and two supporting rods (44); the bottom of the main rod (41) is fixedly connected to the hollow shaft (42); the hollow shaft (42) is fixedly connected to the rotating shaft (11); and the bottom of the hollow shaft (42) is fixedly connected to the bottom plate (43) via the two supporting rods (44).

3. A collection chain proximity switch trigger device according to claim 2, characterized in that: The bottom plate (43) is an arc-shaped plate, and the weight of the bottom plate (43) is greater than the weight of the trigger rod (4) above the hollow shaft (42).

4. A collection chain proximity switch trigger device according to claim 1, characterized in that: A first mounting groove (6) is provided at one end of the connecting shaft (5) close to the second chain (3); the steel rod trigger structure comprises a blocking rod (7) and a mounting seat (8); one end of the blocking rod (7) is fixedly mounted on the mounting seat (8); the other end of the blocking rod (7) is located on the moving path of the steel rod (9); and the mounting seat (8) is mounted in the first mounting groove (6) by means of bolts (10).

5. A collection chain proximity switch trigger device according to claim 1, characterized in that: One end of the trigger rod (4) close to the steel rod (9) is fixedly connected to the connecting shaft (5).

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