Bar conveying alarm device

Abstract

The utility model discloses a bar conveying alarm device which comprises a device body, a conveying mechanism, a clamping mechanism, a frame body, a chain wheel, a chain, a motor, a supporting plate, a transverse plate, an infrared induction probe, a movable plate and an induction block, the device body comprises the conveying mechanism and the clamping mechanism, and the conveying mechanism is composed of the frame body, the chain wheel, the chain and the motor. A plurality of supporting legs are installed on the lower portion of the frame body, the two chain wheels are rotationally arranged on the inner side of the frame body, the chain surrounds the two chain wheels, a motor is installed on the side wall of the frame body, the output end of the motor penetrates through the side wall of the frame body to be connected with one chain wheel, supporting plates are symmetrically arranged on the upper portion of the frame body, and the supporting plates are arranged on the upper portion of the frame body. A transverse plate is jointly installed above the two supporting plates through bolts, the transverse plate is located over the chain, and the device can conduct induction alarm on a long bar, so that the device body is prevented from continuing to operate, and the long bar is prevented from entering the subsequent machining process.

Description

Technical Field

[0001] This utility model relates to the technical field of bar conveying, and in particular to the technical field of a bar conveying alarm device. Background Technology

[0002] Bar stock generally refers to straight strip-shaped processed materials with simple cross-sectional shapes such as circles, squares, and hexagons. Bar stock is usually one of the most common materials in machining.

[0003] Currently, after the bar stock is processed, it needs to be manually removed and then placed in the chuck for clamping and tool setting. This operation method has certain shortcomings in terms of safety and efficiency. 1. Safety: When clamping the material, it is easy to pinch or damage the hand or the tool if you are not careful. 2. Efficiency: Manual clamping of the material takes a long time. If the processing time of the workpiece is short, then one operator can only operate one machine, which results in a waste of manpower. Furthermore, manual clamping has a certain degree of error and the positioning is not accurate enough, which results in more material loss during machining, which increases costs. All of these problems are not in line with the economic benefits of industrial production.

[0004] To address the problems raised in the background art, for example, application number CN201520298753.5 discloses an automatic bar feeding mechanism, including a servo motor connected to a conveyor chain and serving as the driving force for the conveyor chain. A hooking device is fixed on the conveyor chain to hook the bar. A clamping device is provided at the end of the conveyor chain, including a mounting base with a clamping plate mounted on it. The clamping plate is equipped with a cutting end sensor. A clamping cylinder is located at the end of the mounting base, and a clamping sensing switch is located on the clamping cylinder. First, the hooking device hooks the bar, then the servo motor drives the conveyor chain to move forward. When the bar moves to the clamping device, the cutting end sensor detects the cutting end position of the bar, and the clamping sensing switch controls the clamping cylinder to drive the clamping plate to clamp the bar material, accurately feeding the bar into the lathe's feed port, thus completing the feeding. However, this device still has the following drawbacks:

[0005] Because the device lacks a sensing and alarm device, it cannot immediately sense and alarm to stop the machine when the clamping cylinder clamps a long bar, causing the long bar to enter the subsequent processing, thus affecting the processing accuracy. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a bar conveying alarm device that can sense and alarm for longer bars, thereby preventing the device body from continuing to operate and avoiding the entry of longer bars into subsequent processing.

[0007] To achieve the above objectives, this utility model proposes a bar stock conveying alarm device, comprising a device body, a conveying mechanism, a clamping mechanism, a frame, sprockets, a chain, a motor, a support plate, a cross plate, an infrared sensor, a movable plate, and a sensing block. The device body includes a conveying mechanism and a clamping mechanism. The conveying mechanism consists of a frame, sprockets, a chain, and a motor. Several support legs are installed below the frame. Two sprockets are rotatably mounted on the inner side of the frame, and the chain is wrapped around the two sprockets. A motor is installed on the side wall of the frame, and the output end of the motor passes through the side wall of the frame and connects to one of the sprockets. Support plates are symmetrically arranged above the frame. A cross plate is bolted to the top of the two support plates and is located directly above the chain. An infrared sensor is bolted to the cross plate and is electrically connected to the device body via a PLC control system. A movable plate is provided on the side wall of the cross plate, and a sensing block that cooperates with the infrared sensor is bolted to the movable plate.

[0008] Preferably, a baffle for blocking the bar stock is installed on the upper side of the frame.

[0009] Preferably, the frame is provided with side guards on both sides above.

[0010] Preferably, the clamping mechanism includes a concave bracket, a first guide rail, a first slider, a horizontal bracket, a second guide rail, a second slider, and a pneumatic clamp. The concave brackets are symmetrically arranged on the frame. The side walls of the two concave brackets are each equipped with a first guide rail. A first slider is slidably fitted on each of the first guide rails. A horizontal bracket is installed between the first sliders. A second guide rail is installed below the horizontal bracket. A second slider is slidably fitted on the second guide rail. A pneumatic clamp is bolted to the bottom of the second slider.

[0011] Preferably, the movable plate is hinged to the side wall of the horizontal plate by a pin, and the movable plate is located on the side closer to the baffle.

[0012] Preferably, the sensing block is aligned with the infrared sensing probe. When the infrared sensing probe cannot detect the sensing block, the infrared sensing probe controls the device body to stop and trigger an alarm through the PLC control system.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes an infrared sensor, a movable plate, and a sensing block to detect and alarm for longer bars. When a longer bar is conveyed on a chain, it enters directly below the clamping mechanism. A baffle blocks the bar, preventing it from moving forward. The pneumatic clamp then descends to clamp the bar and rises. If the bar is too long, it contacts the movable plate during its ascent, causing the plate to move upwards. Since the sensing block is mounted on the movable plate, it moves upwards synchronously. The infrared sensor detects this change in position and immediately sends the signal to the PLC control system. The PLC control system then stops the machine and triggers an alarm, notifying the operator to remove the excessively long bar. This prevents the bar from entering subsequent processing, improving processing accuracy. This invention solves the problem of insufficient sensing and alarm devices, which prevent the clamping cylinder from immediately detecting and stopping longer bars. Attached Figure Description

[0015] Figure 1 This is a front view of a bar conveying alarm device according to this utility model;

[0016] Figure 2 This is a front view of a bar conveying alarm device according to this utility model;

[0017] Figure 3 This is a schematic diagram of the movable plate of a bar conveying alarm device according to this utility model;

[0018] In the diagram: 1-device body, 2-transfer mechanism, 21-frame, 211-baffle, 212-edge, 22-sprocket, 23-chain, 24-motor, 3-clamping mechanism, 31-concave bracket, 32-first guide rail, 33-first slider, 34-horizontal bracket, 35-second guide rail, 36-second slider, 37-pneumatic clamp, 4-support plate, 5-horizontal plate, 6-infrared sensor, 7-movable plate, 8-sensor block. Detailed Implementation

[0019] See Figures 1 to 3This utility model discloses a bar stock conveying alarm device, comprising a device body 1, a conveying mechanism 2, a clamping mechanism 3, a frame 21, sprockets 22, chains 23, a motor 24, a support plate 4, a cross plate 5, an infrared sensor 6, a movable plate 7, and a sensing block 8. The device body 1 includes the conveying mechanism 2 and the clamping mechanism 3. The conveying mechanism 2 is composed of the frame 21, sprockets 22, chains 23, and a motor 24. Several support legs are installed below the frame 21. Two sprockets 22 are rotatably mounted on the inner side of the frame 21, and the chains 23 are wrapped around the two sprockets 22. The motor 24 is installed on the side wall of the frame 21, and the output end of the motor 24 passes through the side wall of the frame 21 and one of the sprockets 22. The frame 21 is symmetrically equipped with support plates 4 on its upper part. A horizontal plate 5 is bolted to the upper part of the two support plates 4. The horizontal plate 5 is located directly above the chain 23. An infrared sensor 6 is bolted to the horizontal plate 5. The infrared sensor 6 is electrically connected to the device body 1 through a PLC control system. A movable plate 7 is provided on the side wall of the horizontal plate 5. A sensing block 8 that cooperates with the infrared sensor 6 is bolted to the movable plate 7. In this application, the input end of the motor 24 is connected to an external control power supply. Therefore, when the motor 24 is started, the motor 24 drives the sprocket 22 to rotate. The sprocket 22 drives the chain 23 to rotate, thereby driving the other sprocket 22 to rotate synchronously, thus transporting the bar stock.

[0020] See Figure 1 A baffle 211 for blocking the bar is installed on one side of the upper part of the frame 21. By setting the baffle 211, the bar can be blocked, so that the bar can be located above the clamping mechanism 3, thereby facilitating the clamping mechanism 3 to clamp and transfer it.

[0021] See Figure 1 The frame 21 is provided with baffles 212 on both sides above. By setting baffles 212, the bar stock can be prevented from rolling out during the conveying process, thereby improving the stability of the conveying.

[0022] See Figure 2The clamping mechanism 3 includes a concave bracket 31, a first guide rail 32, a first slider 33, a horizontal bracket 34, a second guide rail 35, a second slider 36, and a pneumatic clamp 37. The concave brackets 31 are symmetrically arranged on the frame 21. First guide rails 32 are installed on the side walls of both concave brackets 31. First sliders 33 are slidably fitted on each first guide rail 32. A horizontal bracket 34 is installed between the first sliders 33. A second guide rail 35 is installed below the horizontal bracket 34. A second slider 36 is slidably fitted on the second guide rail 35. A pneumatic clamp 37 is bolted to the bottom of the second slider 36. In this application, the first… Both guide rail 32 and the second guide rail 35 are equipped with electric motors (not shown in the figure). Driven by the electric motors, the first slider 33 and the second slider 36 reciprocate on the first guide rail 32 and the second guide rail 35, thereby driving the pneumatic clamp 37 to clamp and transfer the bar stock. In this application, the pneumatic clamp 37 is mainly composed of a cylinder, a piston, and a piston rod. When compressed air enters the cylinder, it pushes the piston to move, and the piston rod acts on the workpiece to achieve the purpose of clamping. By controlling the air pressure in the air inlet or valve, the clamp can be opened and closed. The greater the air pressure, the tighter the clamp is. After releasing the air pressure, the clamp will open, thereby releasing the object.

[0023] See Figure 3 The movable plate 7 is hinged to the side wall of the horizontal plate 5 by a pin, and the movable plate 7 is located on the side close to the baffle 211. Since there is a gap between the movable plate 7 and the baffle 211 for a normal-sized bar to pass through, the normal-sized bar will not come into contact with the movable plate 7 during the clamping and lifting process. Once the length of the bar is too long, it will come into contact with the movable plate 7 and drive the movable plate 7 to move, thereby triggering the sensing function of the infrared sensor 6.

[0024] See Figure 3 The sensing block 8 is aligned with the infrared sensing probe 6. When the infrared sensing probe 6 cannot sense the sensing block 8, the infrared sensing probe 6 controls the device body 1 to stop and alarm through the PLC control system, thereby notifying the staff to remove the excessively long bar material, thus preventing the excessively long bar material from entering the subsequent processing.

[0025] The working process of this utility model:

[0026] In the operation of this utility model's bar conveying alarm device, when a long bar is conveyed on the chain 23, the bar enters directly below the clamping mechanism 3 under the transmission mechanism 2. At this time, the baffle 211 blocks the bar to prevent it from moving forward. Subsequently, the pneumatic clamp 37 descends to clamp the bar and rises. If the bar is too long, it will come into contact with the movable plate 7 during the ascent, thus driving the movable plate 7 to move upward. Since the sensing block 8 is installed on the movable plate 7, the sensing block 8 moves upward synchronously. At this time, the infrared sensing probe 6 senses the change in the position of the sensing block 8 and immediately sends the received signal to the PLC control system. The PLC control system controls the device body 1 to stop and alarm, thereby notifying the staff to remove the excessively long bar, thus preventing the excessively long bar from entering the subsequent processing and improving the processing accuracy.

[0027] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A bar stock conveying alarm apparatus characterized by: Including device body (1), conveying mechanism (2), clamping mechanism (3), frame (21), chain wheel (22), chain (23), motor (24), support plate (4), cross plate (5), infrared induction probe (6), movable plate (7) and induction block (8), the device body (1) includes conveying mechanism (2) and clamping mechanism (3), the conveying mechanism (2) is composed of frame (21), chain wheel (22), chain (23) and motor (24), a plurality of supporting legs are installed on the lower portion of the frame (21), two chain wheels (22) are rotatably arranged on the inner side of the frame (21), the chain (23) is wound around the two chain wheels (22), the motor (24) is installed on the side wall of the frame (21), the output end of the motor (24) penetrates the side wall of the frame (21) and is connected with one of the chain wheels (22), the support plate (4) is symmetrically arranged on the upper portion of the frame (21), the cross plate (5) is commonly installed on the upper portion of the two support plates (4) through bolts, the cross plate (5) is located directly above the chain (23), the infrared induction probe (6) is installed on the cross plate (5) through bolts, the infrared induction probe (6) is electrically connected with the device body (1) through a PLC control system, the movable plate (7) is provided on the side wall of the cross plate (5), and the induction block (8) matched with the infrared induction probe (6) is installed on the movable plate (7) through bolts.

2. A bar conveying alarm device as claimed in claim 1, characterized in that A baffle (211) for blocking the bar is installed on one side of the upper portion of the frame (21).

3. A bar conveying alarm device as claimed in claim 1, characterized in that: A baffle (211) for blocking the bar is installed on one side of the upper portion of the frame (21).

4. A bar conveying alarm device as claimed in claim 1, characterized in that: The clamping mechanism (3) includes a concave bracket (31), a first guide rail (32), a first sliding block (33), a cross bracket (34), a second guide rail (35), a second sliding block (36) and a pneumatic clamp (37), the concave bracket (31) is symmetrically arranged on the frame (21), the first guide rail (32) is installed on the side wall of each of the two concave brackets (31), the first sliding block (33) is slidably connected with the first guide rail (32), the cross bracket (34) is installed between the first sliding blocks (33), the second guide rail (35) is installed below the cross bracket (34), the second sliding block (36) is slidably connected with the second guide rail (35), and the pneumatic clamp (37) is connected with the second sliding block (36) through bolts.

5. A bar conveying alarm device as claimed in claim 2, characterized in that: The movable plate (7) is hingedly connected to the side wall of the cross plate (5) through a pin shaft, and the movable plate (7) is located on the side close to the baffle (211).

6. A bar conveying alarm device as claimed in claim 1, characterized in that: The induction block (8) is aligned with the infrared induction probe (6), when the infrared induction probe (6) cannot sense the induction block (8), the infrared induction probe (6) controls the device body (1) to stop and alarm through a PLC control system.

Images