Deviation protection device of shredding knife

Abstract

The utility model relates to the technical field of shredding knives, in particular to an offset protection device of a shredding knife, which comprises a box body and the shredding knife, the shredding knife is rotatably mounted in the box body, a motor is arranged on one side of the box body, an output shaft of the motor is fixedly connected with the shredding knife, a detection component is arranged in the box body, and the detection component comprises a detection piece and a rotating rod. A baffle is arranged on the rotating rod, the detection piece is used for detecting whether the baffle rotates or not, reset assemblies are arranged at the two ends of the baffle and used for resetting the rotating rod, and the rotating rod is rotationally installed in the box body. The device aims to solve the problems that in the background technology, an existing device cannot detect whether a shredding knife deviates or not in real time, so that a shredding machine cannot be shut down in time, a deviated cutting edge stops running, and finally the shredding knife is affected or even damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of shredder knives, in particular to a deviation protection device for shredder knives. Background Art

[0002] A shredder is a device that cuts leaves or stems into thin shreds of a certain width. It is divided into rotary shredders, roller shredders, and top-and-bottom shredders. A shredder is provided on the shredder. When the shredder is offset, the blade will collide with other parts of the shredder. If the shredder is not shut down in time and the rotation of the shredder is not stopped, the shredder will be affected and even damaged.

[0003] However, the existing slicing machine cannot detect in real time whether the slicing knife is offset, and therefore cannot shut down the slicing machine in time, so that the offset blade stops running, which eventually affects the slicing knife, and even damages the slicing knife in severe cases. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a wire cutter offset protection device to solve the problem pointed out in the background technology that the existing wire cutter cannot detect in real time whether the wire cutter is offset, and thus cannot be shut down in time to stop the offset blade from running, which ultimately affects the wire cutter and even damages the wire cutter.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A wire cutter offset protection device comprises a box body and a wire cutter, wherein the wire cutter is rotatably installed in the box body, a motor is provided on one side of the box body, and the output shaft of the motor is fixedly connected to the wire cutter, a detection assembly is provided in the box body, the detection assembly comprises a detection piece and a rotating rod, a baffle is provided on the rotating rod, the detection piece is used to detect whether the baffle is rotated, reset assemblies are provided at both ends of the baffle, the reset assembly is used to reset the rotating rod, and the rotating rod is rotatably installed in the box body.

[0007] Furthermore, the detection member includes a transmitter and a receiver, which are symmetrically fixedly mounted on the inner wall of the box, and are both electrically connected to a controller. This arrangement is used to detect in real time whether the baffle is rotating, thereby achieving the purpose of detecting whether the wire cutter is offset.

[0008] Furthermore, the reset assembly includes a limit plate and a torsion spring, wherein the limit plate is fixedly mounted on one side of the box, the torsion spring is sleeved on the rotating rod, and one side of the torsion spring contacts the limit plate. In this arrangement, when the wire cutter works normally, the torsion spring contacts the limit plate, so that the rotating rod is fixed; when the wire cutter deviates, the torsion spring rotates with the rotating rod, and after the wire cutter is reset, the rotating rod automatically resets under the elastic deformation of the torsion spring for next use.

[0009] Furthermore, a limiting ring is fixedly connected in the middle of the torsion spring, the limiting ring is sleeved on the rotating rod, and a locking screw is fixedly connected to the limiting ring. In this way, the purpose of fixing the torsion spring on the rotating rod is achieved.

[0010] Furthermore, a projection is clamped on the baffle plate. In this way, the projection reduces the wear of the shredder on the baffle plate, and the projection is clamped on the baffle plate, which makes it easy to replace the projection.

[0011] Furthermore, a bearing is clamped between the rotating rod and the box body, so as to reduce the friction between the rotating rod and the box body, thereby achieving the purpose of reducing the wear of the rotating rod and the box body.

[0012] Furthermore, the transmitter and the receiver are both in contact with one side of the baffle. In this arrangement, when the device is working, once the baffle is offset, the receiver cannot completely receive the signal sent by the transmitter, thereby inferring that the baffle has rotated, and further inferring that the shredder has offset, and then turning off the motor to stop the operation of the shredder.

[0013] The utility model has the following advantages:

[0014] 1. Through the cooperation of the baffle, the convex block, the transmitter, the receiver and the controller, it is possible to detect in real time whether the baffle is rotating, thereby inferring whether the wire cutter is offset, and using the controller to stop the operation of the wire cutter in time, solving the problem that the existing wire cutter cannot detect in real time whether the wire cutter is offset, and thus cannot shut down the wire cutter in time, so that the offset blade stops running, which eventually affects the wire cutter and even damages the wire cutter;

[0015] 2. Through the cooperation of the limit plate, torsion spring, limit ring, locking screw and rotating rod, the rotating rod is reset, and then the baffle is reset;

[0016] 3. By clamping the protrusion on the baffle, the wear of the shredder on the baffle can be reduced, and the replacement of the protrusion is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a deviation protection device for a shredder knife of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Among them, the box body 1, the cutting knife 11, the motor 12, the rotating rod 3, the baffle 31, the protrusion 32, the transmitter 33, the bearing 34, the limit plate 4, the torsion spring 41, the limit ring 42, and the locking screw 43. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0021] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] like Figure 1 As shown, the present application discloses a wire cutter offset protection device, comprising a housing 1 and a wire cutter 11, wherein the wire cutter 11 is rotatably mounted in the housing 1, a motor 12 is fixedly mounted on one side of the housing 1 by bolts, the output shaft of the motor 12 is key-connected with the wire cutter 11, and a detection component is arranged in the housing 1 for real-time detection of whether the wire cutter 11 has an offset phenomenon, and once it exists, the operation of the wire cutter 11 is immediately stopped, thereby achieving the purpose of protecting the wire cutter 11. In fact, the motor 12 can be a servo motor or a reduction motor, but because the servo motor has higher response capability and more precise control than the reduction motor, the servo motor is preferably used in this embodiment.

[0023] like Figure 1As shown, in the present embodiment, the detection assembly includes a detection member and a rotating rod 3, the rotating rod 3 is rotatably mounted on the box body 1, and a baffle 31 is fixedly installed on the rotating rod 3 by bolts, and a protrusion 32 is clamped on the baffle 31, and the protrusion 32 is provided with a plurality of, preferably 3, and the closest spacing distance between the protrusion 32 and the wire cutter 11 is set to 0.1mm. When the wire cutter 11 deviates, the blade of the wire cutter 11 will hit the protrusion 32, causing the baffle 31 to rotate. Finally, after the detection member detects the rotation of the baffle 31, the motor 12 is turned off to stop the operation of the wire cutter 11, which solves the problem that the existing wire cutter cannot detect whether the wire cutter 11 is deviated in real time, and thus cannot shut down the wire cutter in time, causing the deviated blade to stop running, and finally affecting the wire cutter 11 or even damaging the wire cutter 11; at the same time, the wear of the wire cutter 11 on the baffle 31 is reduced by the protrusion 32, and the replacement of the protrusion 32 is also convenient by clamping the protrusion 32 on the baffle 31. In this embodiment, the detection member is an existing device for detecting whether the baffle 31 is rotating, so no further details are given here.

[0024] like Figure 2 As shown, in this embodiment, bearings 34 are clamped between both ends of the rotating rod 3 and the box body 1 to reduce the friction between the rotating rod 3 and the box body 1, thereby achieving the purpose of reducing the wear of the rotating rod 3 and the box body 1.

[0025] like Figure 1 As shown, in this embodiment, the detection component includes a transmitter 33 and a receiver, and the transmitter 33 and the receiver are symmetrically fixed on the inner wall of the box body 1 by bolts, and the transmitter 33 and the receiver are both in contact with one side of the baffle 31. The transmitter 33 and the receiver are preferably photoelectric switches. When the device is working, once the baffle 31 is offset, it will cause a certain degree of obstruction to the transmitter 33 and the receiver, so that the receiver cannot completely receive the signal sent by the transmitter 33, so that it is inferred that the baffle 31 has rotated, and further inferred that the shredder 11 has shifted, and then the servo motor is turned off to stop the operation of the shredder 11.

[0026] like Figure 2 As shown, both ends of the baffle 31 are provided with a reset assembly. In this embodiment, the reset assembly includes a limit plate 4 and a torsion spring 41. The limit plate 4 is fixedly installed on one side of the box body 1 by bolts. The torsion spring 41 is sleeved on the rotating rod 3. One side of the torsion spring 41 contacts the limit plate 4. A limit ring 42 is welded in the middle of the torsion spring 41. The limit ring 42 is sleeved on the rotating rod 3. A locking screw 43 is fixedly connected to the limit ring 42, so that the torsion spring 41 is fixedly sleeved on the rotating rod 3. When the wire cutter 11 works normally, the torsion spring 41 contacts the limit plate 4, so that the rotating rod 3 is fixed; when the wire cutter 11 deviates, the torsion spring 41 rotates with the rotating rod 3. After the wire cutter 11 is reset, the rotating rod 3 is automatically reset under the elastic deformation of the torsion spring 41 for next use.

[0027] like Figure 1 As shown, in this embodiment, the servo motor, the transmitter 33 and the receiver are all electrically connected to the controller. When the receiver cannot completely receive the signal sent by the transmitter 33, the signal indicating the rotation of the baffle 31 is transmitted to the controller, and the controller then turns off the motor 12 and stops the operation of the shredder 11.

[0028] The method of using the utility model is as follows:

[0029] During use, when the shredder 11 is offset, the blade of the shredder 11 will hit the protrusion 32, causing the baffle 31 to rotate. At this time, the receiver cannot completely receive the signal sent by the transmitter 33, thereby inferring that the baffle 31 has rotated, and further inferring that the shredder 11 is offset. Then, the signal indicating the rotation of the baffle 31 is transmitted to the controller, and the controller then turns off the servo motor to stop the operation of the shredder 11.

[0030] By using the transmitter 33 and the receiver to monitor in real time whether the baffle 31 is rotating, whether the shredder 11 is offset is detected, thereby solving the problem that the existing shredder cannot detect in real time whether the shredder 11 is offset, and thus cannot be shut down in time, causing the offset blade to stop running, which ultimately affects the shredder 11 and even damages it, thereby achieving the purpose of protecting the shredder 11.

[0031] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A wire cutter deviation protection device, comprising a housing (1) and a wire cutter (11), wherein the wire cutter (11) is rotatably mounted in the housing (1), a motor (12) is disposed on one side of the housing (1), and an output shaft of the motor (12) is fixedly connected to the wire cutter (11); the characteristics are: A detection assembly is arranged in the box body (1), the detection assembly comprising a detection member and a rotating rod (3), the rotating rod (3) being provided with a baffle (31), the detection member being used to detect whether the baffle (31) is rotating, and reset assemblies being arranged at both ends of the baffle (31), the reset assemblies being used to reset the rotating rod (3), the rotating rod (3) being rotatably mounted in the box body (1).

2. The deflection protection device for a shredder according to claim 1, characterized in that: The detection component comprises a transmitter (33) and a receiver, wherein the transmitter (33) and the receiver are symmetrically fixedly mounted on the inner wall of the box (1), and the transmitter (33) and the receiver are both electrically connected to a controller.

3. The deflection protection device for a shredder according to claim 1, characterized in that: The reset assembly comprises a limit plate (4) and a torsion spring (41); the limit plate (4) is fixedly mounted on one side of the box body (1); the torsion spring (41) is sleeved on the rotating rod (3); and one side of the torsion spring (41) contacts the limit plate (4).

4. The deflection protection device for a shredder according to claim 3, characterized in that: A limiting ring (42) is fixedly connected in the middle of the torsion spring (41), the limiting ring (42) is sleeved on the rotating rod (3), and a locking screw (43) is fixedly connected to the limiting ring (42).

5. The deflection protection device for a shredder according to claim 1, characterized in that: A protrusion (32) is clamped on the baffle (31).

6. The deflection protection device for a shredder according to claim 1, characterized in that: A bearing is clamped between the rotating rod (3) and the box body (1).

7. The deflection protection device for a shredder according to claim 2, characterized in that: The transmitter (33) and the receiver are both in contact with one side of the baffle (31).

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