Chain breakage detection device for unloading and stacking machine

Abstract

The utility model provides a chain breakage detection device for an unloading and stacking machine, and belongs to the technical field of unloading and stacking machine equipment. The upper end of the movable plate is movably connected with one end of the mounting plate, and the lower end of the movable plate is in a free state; one side of the supporting frame is fixedly connected with a sensor support, an elastic pressing assembly is arranged on the sensor support and abuts against a movable plate, the lower end of the movable plate makes rolling contact with the lifting chain, and the tightening force of the lifting chain acts on the lower end of the movable plate so that the movable plate can compress the elastic pressing assembly; and a detection sensor is arranged on the sensor bracket. When the lifting chain drives up and down, the elastic pressing assembly presses the movable plate, the chain is in a normal state, and the detection sensor can detect the movable plate; after the lifting chain is broken, the chain is in a loose state, the elastic pressing assembly pushes out the movable plate, the detection sensor cannot detect the movable plate, and a chain breaking signal is triggered. According to the utility model, the breakage condition of the chain can be accurately and timely detected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to unloading and stacking machine equipment technical field, and specifically relates to a chain break detection device for unloading and stacking machine. BACKGROUND

[0002] In the running process of the unloading and stacking machine, the chain transmission system plays a vital role, responsible for lifting and carrying goods. However, due to long-time operation, wear and tear, overload and other reasons, the chain may break. If the chain breakage cannot be detected in time, it may cause the goods to fall, resulting in equipment damage and safety accidents. The current unloading and stacking machine mostly uses chain lower proximity switch chain break detection, and this area is narrow in space, difficult to maintain and maintain, and has problems such as inaccurate detection and untimely response. Therefore, it is necessary to improve. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem: provide a kind of chain break detection device for unloading and stacking machine, the utility model is to solve the defect of existing chain break detection device, realize the accurate, timely detection of the breakage of chain, improve the safety and reliability of unloading and stacking machine.

[0004] To achieve the above object, the utility model adopts the technical scheme of:

[0005] The chain break detection device for unloading and stacking machine includes mounting plate, movable plate, detection sensor and elastic compression assembly;

[0006] The mounting plate is fixed on the support frame, and the upper end of the movable plate is movably connected to one end of the mounting plate;The lower end of the movable plate is in a free state.

[0007] One side of the support frame is fixedly connected with a sensor support, and the sensor support is provided with an elastic compression assembly;The elastic compression assembly is placed on the movable plate, and the lower end of the movable plate is in rolling contact with the lifting chain;The tension of the lifting chain acts on the lower end of the movable plate, so that the movable plate compresses the elastic compression assembly.

[0008] The sensor support is provided with a detection sensor, and the detection sensor emits a normal state signal or a broken state signal of the lifting chain by detecting the distance from the movable plate.

[0009] Further limit to the above scheme, the mounting plate is V-shaped mounting plate, and the V-shaped mounting plate is provided with two and fixed on the support frame and placed on both sides of the transmission chain wheel;The upper end of the movable plate is connected to the V-shaped mounting plate by a pin shaft.

[0010] Further to the above scheme, the movable plate lower end is provided with a pin shaft, and a chain pressing wheel is arranged on the pin shaft and rolls and presses on the lifting chain; the pin shaft at the upper end of the movable plate is also provided with a chain pressing wheel, and the chain pressing wheel at the upper part rolls and contacts the lifting chain.

[0011] Further to the above scheme, the elastic pressing assembly comprises a supporting bolt, a compression spring and a nut, the nut is fixedly connected to the sensor support, the supporting bolt is screwed with the nut, and the compression spring is sleeved on the supporting bolt, and the compression spring is pressed by the movable plate and is in a compressed state.

[0012] Further to the above scheme, the detection sensor adopts a non-contact sensor.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. The movable plate, the detection sensor and the elastic pressing assembly are arranged near the lifting chain, when the driving sprocket drives the lifting chain up and down, the elastic pressing assembly presses the movable plate, the movable plate rolls and contacts the lifting chain, at this time, the chain is in a normal state, and the detection sensor can detect the movable plate; when the chain is broken due to a fault, the lifting chain is in a relaxed state, the elastic pressing assembly pushes out the movable plate, the detection sensor cannot detect the movable plate, and a broken chain signal is triggered; therefore, the broken chain condition can be accurately and timely detected, and the safety and reliability of the unstacker are improved.

[0015] 2. The non-contact detection sensor is adopted in the scheme, the broken chain condition of the lifting chain can be accurately and timely detected, and wear and error caused by the contact type detection are avoided.

[0016] 2. The broken chain detection device is designed, after a fault is eliminated, manual recovery is not needed, the device can be automatically restored to position, and the safe equipment operation is ensured again. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure front view of the broken chain detection device for the unstacker is provided in the utility model.

[0018] Figure 2 A structure side view of the broken chain detection device for the unstacker is provided in the utility model.

[0019] Figure 3 The utility model provides Figure 1 A partial structure schematic view is shown in the utility model.

[0020] Figure 4 A broken chain detection state diagram of the broken chain detection device for the unstacker is provided in the utility model. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0023] It should be noted that in this paper, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "includes a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0024] Please refer to Figures 1-4 for a detailed description of the embodiments of the present application.

[0025] Embodiment: A chain breakage detection device for a unstacking machine, as shown in Figure 1 , comprising a mounting plate 5, a movable plate 6, a detection sensor 9 and an elastic compression assembly.

[0026] The mounting plate 5 is fixed on the support frame 1, and the support frame 1 is used to install the rotating shaft 2 and the transmission sprocket 3. The upper end of the movable plate 6 is movably connected to one end of the mounting plate 5, and the lower end of the movable plate 6 is in a free state.

[0027] One side of the support frame 1 is fixedly connected with a sensor bracket 8, and the sensor bracket 8 is provided with an elastic compression assembly. The elastic compression assembly is placed on the movable plate 6, and the lower end of the movable plate 6 is in rolling contact with the lifting chain 4. The tensioning force of the lifting chain 4 acts on the lower end of the movable plate 6, so that the movable plate 6 compresses the elastic compression assembly.

[0028] The sensor support 8 is provided with a detection sensor 9, which sends a normal state signal or a broken state signal of the lifting chain 4 by detecting the distance from the movable plate 6.

[0029] In the embodiment, when the driving sprocket 3 drives the lifting chain 4 up and down under the driving of the rotating shaft 2, the elastic compression assembly compresses the movable plate 6, and the movable plate 6 is in rolling contact with the lifting chain 4, at which time the lifting chain 4 is in a normal state, and the detection sensor 9 can detect the movable plate 6; after the lifting chain 4 is broken due to a fault, the lifting chain 4 is in a relaxed state, and the elastic compression assembly pushes out the movable plate 6, and the detection sensor 9 cannot detect the movable plate 6, and the detection sensor 9 triggers a broken chain signal. The embodiment realizes accurate and timely detection of the breaking of the chain, and improves the safety and reliability of the unloading stacker.

[0030] In a specific embodiment, the mounting plate 5 is a V-shaped mounting plate, two V-shaped mounting plates are fixed on the support frame 1 and placed on both sides of the driving sprocket 3, and the upper end of the movable plate 6 is connected with the V-shaped mounting plate through a pin shaft.

[0031] Through the above-mentioned embodiment, the installation of the movable plate is facilitated, and the movable plate can be close to the lifting chain.

[0032] In a specific embodiment, referring to Figure 2 The lower end of the movable plate 6 is provided with a pin shaft, the pin shaft is provided with a chain compression wheel 7, the chain compression wheel 7 is in rolling contact with the lifting chain 4, and the pin shaft of the upper end of the movable plate 6 is also provided with a chain compression wheel 7, and the chain compression wheel 7 is in rolling contact with the lifting chain 4.

[0033] Through the above-mentioned embodiment, the contact between the movable plate and the lifting chain is realized through the chain compression wheel, and rolling contact is formed between the movable plate and the lifting chain, so that the friction and wear of the lifting chain are effectively reduced.

[0034] In a specific embodiment, referring to Figure 3 The elastic compression assembly includes a supporting bolt 10, a compression spring 11 and a nut 12, the nut 12 is fixedly connected to the sensor support 8, the supporting bolt 10 is screwed with the nut 12, the compression spring 11 is sleeved on the supporting bolt 10, and the compression spring 11 is pressed by the movable plate 6 and is in a compressed state.

[0035] Through the above-mentioned embodiment, the elastic compression assembly and the movable plate are in an elastic compression state, the compression spring always generates a certain elastic pressure on the movable plate in the normal state of the lifting chain, so that the movable plate can be instantaneously pushed out when the chain is broken, and the detection sensor can achieve accurate and timely detection.

[0036] In one specific embodiment, the detection sensor 9 is a non-contact sensor, typically a proximity switch. Installed near the chain drive system, the detection sensor is capable of real-time monitoring of the position and motion of the lifting chain. When the lifting chain is operating normally, the detection sensor detects the movable plate, thereby detecting the chain's motion signal. When the chain breaks, the detection sensor loses the ability to detect the movable plate and, consequently, the chain's motion signal, thereby determining that the chain has broken.

[0037] Working conditions of this utility model:

[0038] like Figure 1 As shown, the mounting plate 5 is fixed on the support frame 1, the transmission sprocket 3 drives the lifting chain 4 to move up and down, and the movable plate 6 is in contact with the lifting chain 4, which is in a normal state at this time; the lifting chain 4 presses the chain pressure wheel 7, and the chain pressure wheel 7 drives the movable plate 6 to be in a vertical state; the detection sensor 9 installed on the sensor bracket 8 can detect the movable plate 6, which is in a detected state; the compression spring 11 is in a compressed state at this time, and the support bolt 10 supports and retains the compression spring 11.

[0039] like Figure 4 As shown, when the lifting chain 4 suddenly breaks, the lifting chain 4 is in a relaxed state, the pressing force is not enough to press the chain pressure wheel 7, the compression spring 11 acts instantaneously, and the movable plate 6 pops out. The distance between the movable plate 6 and the detection sensor 9 increases, the detection sensor 9 cannot detect the movable plate 6, the detection signal of the detection sensor 9 disappears, and the alarm is triggered instantly.

[0040] In addition, the detection sensor in the present invention can also be combined with a signal processing module and an alarm module for automatic monitoring and control. The detection sensor is used to detect the status of the chain, the signal processing module is used to process and analyze the signal from the detection sensor, and the alarm module is used to issue an alarm signal when a chain break is detected. This achieves automated detection and alarm of lifting chain breakage.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0042] Furthermore, it should be understood that although the description is made according to the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and the person skilled in the art should understand the description as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that the person skilled in the art can understand.

Claims

1. A broken link detection device for a depiler, characterized in that: It comprises a mounting plate (5), a movable plate (6), a detection sensor (9) and an elastic compression assembly; The mounting plate (5) is fixed on the support frame (1), and the upper end of the movable plate (6) is movably connected with one end of the mounting plate (5), and the lower end of the movable plate (6) is in a free state; One side of the support frame (1) is fixedly connected with a sensor support (8), the sensor support (8) is provided with the elastic compression assembly, the elastic compression assembly is placed on the movable plate (6), the lower end of the movable plate (6) is in rolling contact with the lifting chain (4), and the tension of the lifting chain (4) acts on the lower end of the movable plate (6) so that the movable plate (6) compresses the elastic compression assembly; The sensor support (8) is provided with the detection sensor (9), and the detection sensor (9) emits a normal state signal or a broken state signal of the lifting chain (4) by detecting the distance from the movable plate (6).

2. A broken link detection device for a depiling machine according to claim 1, characterized in that: The mounting plate (5) is a V-shaped mounting plate, the V-shaped mounting plate is provided with two and is fixed on the support frame (1) and placed on both sides of the transmission sprocket (3); the upper end of the movable plate (6) is connected with the V-shaped mounting plate through a pin shaft.

3. A broken link detection device for a depalletizer as defined in claim 2, characterized in that: The lower end of the movable plate (6) is provided with a pin shaft, the pin shaft is provided with a chain pressing wheel (7), the chain pressing wheel (7) is rolled and pressed on the lifting chain (4); the pin shaft of the upper end of the movable plate (6) is also provided with a chain pressing wheel (7), and the chain pressing wheel (7) on the upper part is in rolling contact with the lifting chain (4).

4. The broken link detection device for a depiling machine according to claim 1, characterized in that: The elastic compression assembly comprises a supporting bolt (10), a compression spring (11) and a nut (12), the nut (12) is fixedly connected on the sensor support (8), the supporting bolt (10) is screwed with the nut (12), the compression spring (11) is sleeved on the supporting bolt (10), and the compression spring (11) is pressed by the movable plate (6) and is in a compressed state.

5. The broken link detection device for a depiling machine according to claim 1, characterized in that: The detection sensor (9) adopts a non-contact sensor.

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