Broken wire detection device

Abstract

The utility model discloses a broken line detection device, which is arranged above two electrodes through a heavy hammer and comprises a fixed disc, the two electrodes, the heavy hammer and a detection line for pulling the heavy hammer, and when the detection line is broken, the heavy hammer falls by virtue of gravity to contact the two electrodes, so that the two electrodes are electrically connected, and the alarm device is triggered. Due to the fact that the counter weight is in physical contact with the two electrodes, electric connection of the two electrodes is instantaneously formed, and broken lines are detected in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the broken line detection technical field in multi-wire cutting machine. BACKGROUND

[0002] Multi-wire cutting machine is the high -speed movement of cutting line, drive the diamond in cutting fluid to the cutting material with the form of grinding to cut. Because the equipment runs, cutting line running speed is fast, and cutting environment is bad, closed, when the cutting line breaks through artificial detection cannot find in time. Therefore, need through broken line detection and timely determination equipment failure. UTILIT Y MODEL CONTENT

[0003] In view of above-mentioned defect, the utility model provides a broken line detection device, purpose is to provide for the real -time detection of cutting line break, and when cutting line breaks, it is convenient to replace maintenance.

[0004] To solve above-mentioned problem, the utility model adopts following technical scheme:

[0005] A broken line detection device, it include: alarm device, fixed disc, install two electrodes in the fixed disc front end surface, weight, drive the drive device that weight moves between first position and second position, the detection line that pulls weight, two electrodes are electrically connected with alarm device, the weight is located in the front of fixed disc, when weight moves to first position, two electrodes are located below weight and make weight drop after contact with two electrodes, when weight moves to second position, fixed disc has a distance between weight.

[0006] Further, the front surface of the fixed disc is provided with a protective cover, the opening of the protective cover is forward, and the two electrodes are located in the protective cover, when the weight moves to the first position, the weight is located in the protective cover.

[0007] Further, it further includes a guide cover, the weight is located in the guide cover and is transversely limited by the guide cover, and the bottom of the guide cover penetrates, when the weight moves to the first position, the two electrodes are located below the guide cover, and the guide cover is also located in the protective cover.

[0008] Further, a guide wheel located above the weight is arranged in the guide cover, and the detection line is connected to the weight through the guide wheel.

[0009] Further, the drive device is a cylinder, the cylinder rod is fixed with the guide cover, the cylinder rod drives the guide cover and the weight to be movable relative to the cylinder seat, the fixed disc is fixed on the cylinder seat and the cylinder rod penetrates the fixed disc.

[0010] Further, the top of the weight forms an inclined surface downwardly to both sides.

[0011] Beneficial effects: compared with the prior art, the utility model discloses a heavy hammer is arranged above two electrodes, when the detection line is broken, the heavy hammer contacts two electrodes by gravity and makes two electrodes form electric connection, thereby triggering the alarm device. Since the physical contact of the heavy hammer and two electrodes makes the electric connection of two electrodes form instantaneously and detects the broken line in real time. Meanwhile, two electrodes are arranged on the fixed disc that can move relative to the heavy hammer, so that when the fallen heavy hammer is repositioned and connected with the new detection line, the heavy hammer can be moved away first to facilitate the replacement and maintenance of the detection line and the heavy hammer. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure diagram of the broken line detection device of the utility model and shows that the heavy hammer has a distance between the second position and the fixed disc.

[0013] Figure 2 It is a structure diagram of the broken line detection device of the utility model and shows that the heavy hammer has a distance between the second position and the fixed disc.

[0014] Figure 3 It is a front view when the heavy hammer moves to the first position. DETAILED DESCRIPTION

[0015] As shown in Figures 1 to 3 The utility model discloses a broken line detection device, is applied to multi -wire cutting machine. The broken line detection device includes alarm device (not shown), fixed disc 2, guide cover 6, metal heavy hammer 7, install two electrodes 4 in the fixed disc 2 front end surface, drive the drive device 1 of heavy hammer 7 and move between the first position and the second position, the detection line 11 of traction heavy hammer, the fixed sheet 8 of fixed detection line 11, two electrodes 4 are connected with alarm device, and alarm device can be installed on fixed disc 2 also can be separated from fixed disc and independently set up. The front surface of fixed disc 2 is equipped with a protective cover 3, and the opening of the protective cover 3 faces forward, and two electrodes 4 are located in the protective cover 3. The heavy hammer 7 is located in the guide cover 6 and is transversely limited by the guide cover 6, and the bottom is penetrated, so when the detection line 11 is broken, the heavy hammer 7 will only fall along the guide of the guide cover 6 by gravity, please combine Figure 2 When the heavy hammer 7 moves to the first position, the heavy hammer 7 is located in the protective cover 3, the guide cover 6 is also located in the protective cover 3, and the two electrodes 4 are located below the guide cover 6, so that the heavy hammer 7 can accurately fall on the two electrodes 4 and contact the two electrodes 4 to form electric connection when falling. The guide cover 6 is provided with a guide wheel above the heavy hammer 7, and the detection line 11 is connected to the heavy hammer 7 through the guide wheel. The both ends of the detection line 11 are fixed on the heavy hammer 7 and the fixed sheet 8 through the butterfly screw 9.

[0016] The top of the weight 7 is formed with two inclined surfaces downward to reduce the deposition of sludge which may fall on the top of the weight 7 in the multi-wire cutting machine. Meanwhile, the top of the weight 7 can be protected when the fixed disc is in the first position.

[0017] The driving device 1 is a cylinder, the cylinder rod is fixed with the guide cover 6, and the cylinder rod drives the guide cover 6 and the weight 7 to be movable relative to the cylinder seat. The fixed disc 2 is fixed on the cylinder seat and the cylinder rod penetrates the fixed disc 2. When the weight 7 or the detection wire 11 needs to be maintained, such as being replaced or cleaned, in order to avoid the interference of the electrode 4 and the protective cover 3 to cause inconvenience in maintenance, the cylinder rod can be pushed outwards to move the guide cover 6 and the weight 7 to the second position. Figure 1 As shown in the figure, when the guide cover 6 and the weight 7 are moved to the second position, the fixed disc 2 has a distance with the weight 7. It should be noted that when the detection wire 11 needs to be connected with the weight 7, the guide cover 6 and the weight 7 should be moved to the second position as shown in the figure, Figure 1 As shown in the figure, the guide cover 6 and the weight 7 are moved to the second position, Figure 1 The state that the detection wire 11 is not connected is shown, then the two ends of the detection wire 11 are fixedly connected with the weight 7 and the fixed sheet 8 respectively, and then the guide cover 6 and the weight 7 are moved to the first position by the cylinder rod. Figure 2 As shown in the figure, the guide cover 6 and the weight 7 are moved to the second position,

Claims

1. A broken wire detection device, characterized by, The alarm device comprises a fixed disc (2), two electrodes (4) installed on the front end surface of the fixed disc (2), a weight (7), a driving device (1) for driving the weight (7) to move between a first position and a second position, and a detection line (11) for pulling the weight (7). The two electrodes (4) are electrically connected to the alarm device. The weight (7) is located in front of the fixed disc (2). When the weight (7) moves to the first position, the two electrodes (4) are located below the weight (7) and make contact with the weight (7) after the weight (7) falls. When the weight (7) moves to the second position, the fixed disc (2) is spaced apart from the weight (7). The front surface of the fixed disc is provided with a protective cover (3) with an opening facing forward. The two electrodes (4) are located in the protective cover (3). When the weight (7) moves to the first position, the weight (7) is located in the protective cover (3).

2. The broken wire detection device of claim 1, wherein The device further comprises a guide cover (6) in which the weight (7) is located and is transversely limited by the guide cover (6). The bottom of the guide cover (6) is perforated. When the weight (7) moves to the first position, the two electrodes (4) are located below the guide cover (6), and the guide cover (6) is also located in the protective cover (3).

3. The broken wire detection device of claim 2, wherein The guide cover (6) is provided with a guide wheel located above the weight (7). The detection line (11) is connected to the weight (7) through the guide wheel.

4. The broken wire detection device of claim 3, wherein The driving device (1) is a cylinder. The cylinder rod is fixed to the guide cover (6). The cylinder rod drives the guide cover (6) and the weight (7) to be movable relative to the cylinder base. The fixed disc (2) is fixed to the cylinder base, and the cylinder rod penetrates the fixed disc (2).

5. The broken wire detection device of claim 3, wherein The top of the weight (7) is formed with inclined surfaces downwardly and obliquely to both sides.

6. The broken wire detection device of claim 1, wherein ​

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