A leaf moistening cylinder slip early warning device

Abstract

The utility model discloses a kind of slip early warning devices of leaf moistening cylinder, belong to tobacco equipment technical field.The slip early warning device of leaf moistening cylinder is installed in leaf moistening machine, and leaf moistening machine includes rack, leaf moistening cylinder, tow wheel and driving part, the rotating shaft of tow wheel is rotatably connected to rack, leaf moistening cylinder is placed on tow wheel, the output end of driving part is connected with the rotating shaft of tow wheel and is used to drive tow wheel rotation, detector is fixedly connected to rack, inductive element is fixedly connected to the circumferential side wall of leaf moistening cylinder and can be directly opposite or avoid detector with leaf moistening cylinder rotation, detector can be triggered when inductive element is directly opposite detector, controller is fixedly connected to rack and is respectively connected with detector and driving part communication, so that controller can obtain the time difference of detector twice triggering before and after, when time difference exceeds setting time length, it can be identified that leaf moistening cylinder and support wheel occur serious skidding phenomenon, at this time, controller controls driving part and makes leaf moistening cylinder stop, avoid leaf moistening machine support wheel burn out, reduce the maintenance frequency of leaf moistening machine support wheel.

Description

Technical Field

[0001] This utility model relates to the field of tobacco equipment technology, specifically to a leaf-lubricating tube slippage warning device. Background Technology

[0002] In cigarette production, tobacco leaves that have already been initially dried by tobacco farmers need to be fed into the humidifying cylinder of a leaf humidifying machine. The humidifying cylinder rotates to heat and humidify the tobacco leaves, which are then re-dried.

[0003] In existing technologies, leaf-humidifying machines are mostly driven by a roller to rotate the leaf-humidifying cylinder. The transmission between the roller and the leaf-humidifying cylinder relies on the friction between them. The greater the friction, the more stable the transmission.

[0004] This friction drive inevitably leads to slippage between the roller and the humidifying cylinder. Slight slippage is normal and will not affect the normal operation of the equipment. However, if severe slippage occurs, the humidifying cylinder will stop rotating, and the tobacco leaves will accumulate at the bottom of the cylinder, causing the center of gravity of the humidifying cylinder to shift downward, generating an eccentric torque that makes it difficult for the cylinder to rotate. Furthermore, the interaction between the roller and the rolling ring changes from rolling friction to sliding friction, generating a large amount of heat and causing the roller to burn out. At the same time, replacing the humidifying machine roller is cumbersome and complex, severely reducing maintenance efficiency. The resulting standby of the production line and repeated start-ups and shutdowns of the equipment also lead to serious waste of resources.

[0005] Therefore, there is an urgent need for a leaf-lubricating cylinder slippage early warning device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. To this end, this invention provides a leaf-dripping cylinder slippage warning device, which can prevent severe slippage between the leaf-dripping cylinder and the trolley, thus avoiding damage to the leaf-dripping machine's trolley.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A leaf-rinsing cylinder slippage warning device is provided, installed on a leaf-rinsing machine. The leaf-rinsing machine includes a frame, a leaf-rinsing cylinder, a roller, and a drive component. The roller's shaft is rotatably connected to the frame, the leaf-rinsing cylinder is placed on the roller, and the output end of the drive component is connected to the roller's shaft and used to drive the roller to rotate. The leaf-rinsing cylinder slippage warning device includes:

[0009] The detector is fixedly connected to the frame;

[0010] A sensor is fixedly connected to the peripheral wall of the leaf-lubricating cylinder and can rotate with the leaf-lubricating cylinder to face or avoid the detector. The detector can be triggered when the sensor faces the detector.

[0011] A controller is fixedly connected to the frame and is communicatively connected to the detector and the drive unit, respectively.

[0012] In some embodiments, the detector is slidably connected to the frame along a first direction, and when the sensor is facing the detector, the detector can move along the first direction to approach or move away from the sensor.

[0013] In some embodiments, the leaf-lubricating cylinder slippage warning device further includes a slide rail and a mounting bracket. The slide rail is fixedly connected to the frame and extends along the first direction. The detector is detachably connected to the mounting bracket. The mounting bracket has a groove that can slide and cooperate with the slide rail.

[0014] In some embodiments, the mounting bracket has a through hole, the detector has an external thread on its peripheral sidewall, the detector passes through the through hole, and two nuts are threaded to the external thread of the detector on both sides of the through hole, thereby detachably connecting the detector to the mounting bracket.

[0015] In some embodiments, the detector is a proximity switch and the sensing element is a metal sheet.

[0016] In some embodiments, the detector is a photogate and the sensing element is a light-shielding sheet.

[0017] In some embodiments, the detector is a photoelectric switch and the sensing element is a reflector.

[0018] The beneficial effects of this utility model are as follows:

[0019] The leaf-dripping drum slippage early warning device provided in this embodiment uses a detector fixedly connected to the frame and a sensor fixedly connected to the circumferential wall of the leaf-dripping drum. The sensor can be aligned with or away from the detector as the leaf-dripping drum rotates. The detector can be triggered when the sensor is aligned with the detector. The controller is communicatively connected to both the detector and the drive unit, so that the controller can know the time difference between two triggers of the detector. When the time difference exceeds a set time, it can be determined that a serious slippage phenomenon has occurred between the leaf-dripping drum and the trolley. At this time, the controller controls the drive unit to stop the leaf-dripping drum, so as to avoid burning out the leaf-dripping machine trolley and reduce the maintenance frequency of the leaf-dripping machine trolley. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the leaf-lubricating cylinder slippage warning device provided in this embodiment of the utility model.

[0022] Figure label:

[0023] 101. Frame; 102. Leaf humidifier; 103. Caster wheel;

[0024] 1. Detector;

[0025] 2. Sensing components;

[0026] 3. Install the bracket. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Figure 1 A schematic diagram of the slippage warning device for the leaf spring provided in this embodiment is shown. Figure 1 As shown, the leaf-dripping cylinder slippage warning device provided in this embodiment is installed on a leaf-dripping machine. The leaf-dripping machine includes a frame 101, a leaf-dripping cylinder 102, a roller 103, and a drive unit. The shaft of the roller 103 is rotatably connected to the frame 101. The leaf-dripping cylinder 102 is placed on the roller 103. The drive unit is fixedly connected to the frame 101. The output end of the drive unit is connected to the shaft of the roller 103 and is used to drive the roller 103 to rotate. The leaf-dripping cylinder slippage warning device includes a detector 1, a sensor 2, and a controller. The detector 1 is fixedly connected to the frame 101. The sensor 2 is fixedly connected to the peripheral wall of the leaf-dripping cylinder 102 and can face or avoid the detector 1 as the leaf-dripping cylinder 102 rotates. The detector 1 can be triggered when the sensor 2 faces the detector 1. The controller is fixedly connected to the frame 101 and is communicatively connected to the detector 1 and the drive unit respectively. Understandably, the leaf-curing machine heats and bakes the tobacco leaves using a hot air blower. The hot air blower is fixedly connected to the frame 101 of the leaf-curing machine and is used to supply hot air into the leaf-curing cylinder 102 to re-bake the tobacco leaves.

[0031] The leaf-dripping drum slippage warning device provided in this embodiment is configured such that detector 1 is fixedly connected to frame 101, and sensing element 2 is fixedly connected to the peripheral wall of leaf-dripping drum 102 and can rotate with leaf-dripping drum 102 to face or avoid detector 1. Detector 1 can be triggered when sensing element 2 faces detector 1. The controller is communicatively connected to detector 1 and drive element respectively, so that the controller can know the time difference between two triggers of detector 1. When the time difference exceeds the set time, it can be determined that a serious phenomenon has occurred between leaf-dripping drum 102 and roller 103. At this time, the controller controls the drive element to stop leaf-dripping drum 102, avoids leaf-dripping machine roller 103 from burning out, and reduces the maintenance frequency of leaf-dripping machine roller 103.

[0032] It should be noted that the type of controller is not limited here. It can be a programmable logic controller or a microcomputer, as long as it can communicate with detector 1 and the driver.

[0033] It should be noted that the time difference between the two triggers of detector 1 is the time it takes for the leaf-wetting cylinder 102 to rotate one revolution. When the time it takes for the leaf-wetting cylinder 102 to rotate one revolution exceeds the set time, it can be considered that there is serious slippage between the leaf-wetting cylinder 102 and the towing wheel 103, resulting in a decrease in the rotation speed of the leaf-wetting cylinder 102. The leaf-wetting machine needs to be stopped immediately to avoid burning out the towing wheel 103. As for the set time, those skilled in the art can set it reasonably according to the actual working conditions of the leaf-wetting machine, which will not be elaborated here.

[0034] Continue as Figure 1As shown, detector 1 is slidably connected to frame 101 along a first direction. When sensor 2 is facing detector 1, detector 1 can move along the first direction to approach or move away from sensor 2, thereby adjusting the relative position between detector 1 and sensor 2. This ensures that detector 1 can reliably trigger sensor 2 when it is facing detector 1, thus improving the reliability of slip detection of the leaf-dripping cylinder 102 of the leaf-dripping machine. Specifically, the leaf-dripping cylinder slip warning device also includes a slide rail and a mounting bracket 3. The slide rail is fixedly connected to frame 101 and extends along the first direction. Detector 1 is detachably connected to mounting bracket 3. Mounting bracket 3 has a sliding groove that can slide with the slide rail, thereby guiding the sliding direction of detector 1 and ensuring that detector 1 can reliably trigger sensor 2 when sliding along the first direction. It can be understood that the first direction can be any direction, as long as detector 1 can reliably trigger sensor 2 when sensor 2 is facing detector 1.

[0035] Preferably, the mounting bracket 3 has a through hole, and the peripheral side wall of the detector 1 has an external thread. The detector 1 passes through the through hole, and two nuts are threaded to the external thread of the detector 1 on both sides of the through hole, thereby detachably connecting the detector 1 to the mounting bracket 3.

[0036] It should be noted that the specific types of the leaf-moistening machine detector 1 and the sensing element 2 in this utility model are not limited here. As long as the sensing element 2 can reliably trigger the detector 1 when it is directly facing the detector 1 after rotating one revolution with the leaf-moistening cylinder 102.

[0037] In some embodiments, detector 1 can be a proximity switch, sensing element 2 can be a metal sheet, proximity switch is fixedly connected to mounting bracket 3, metal sheet is fixedly connected to the peripheral wall of leaf-humidifying cylinder 102, and metal sheet can trigger proximity switch when it is facing the proximity switch as the leaf-humidifying cylinder 102 rotates.

[0038] In some embodiments, detector 1 can be a photogate, and sensor 2 can be a light-shielding plate. The photogate is fixedly connected to mounting bracket 3, and the light-shielding plate is fixedly connected to the peripheral wall of the leaf-humidifying cylinder 102. The light-shielding plate can trigger the photogate when it is facing the photogate as the leaf-humidifying cylinder 102 rotates. It should be noted that when the photogate is used to detect slippage of the leaf-humidifying cylinder 102, the light-shielding plate is located between the transmitter and receiver of the photogate.

[0039] In other embodiments, detector 1 can be a photoelectric switch, sensing element 2 can be a reflector, photoelectric switch is fixedly connected to mounting bracket 3, and reflector is fixedly connected to the peripheral side wall of leaf-humidifying cylinder 102. The reflector can trigger the photoelectric switch when it is facing the photoelectric switch as the leaf-humidifying cylinder 102 rotates.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A leaf-dripping cylinder slippage warning device, installed on a leaf-dripping machine, the leaf-dripping machine comprising a frame (101), a leaf-dripping cylinder (102), a roller (103), and a drive component, wherein the rotating shaft of the roller (103) is rotatably connected to the frame (101), the leaf-dripping cylinder (102) is placed on the roller (103), and the output end of the drive component is connected to the rotating shaft of the roller (103) and is used to drive the roller (103) to rotate, characterized in that, The leaf-lubricating cylinder slippage early warning device includes: Detector (1), the detector (1) is fixedly connected to the frame (101). The sensor (2) is fixedly connected to the peripheral wall of the leaf-moistening cylinder (102) and can rotate with the leaf-moistening cylinder (102) to face or avoid the detector (1). The detector (1) can be triggered when the sensor (2) faces the detector (1). The controller is fixedly connected to the frame (101) and is communicatively connected to the detector (1) and the drive unit respectively.

2. The leaf-lubricating cylinder slippage early warning device according to claim 1, characterized in that, The detector (1) is slidably connected to the frame (101) along the first direction. When the sensor (2) is facing the detector (1), the detector (1) can move along the first direction to approach or move away from the sensor (2).

3. The leaf-lubricating cylinder slippage early warning device according to claim 2, characterized in that, The leaf-lubricating cylinder slippage warning device also includes a slide rail and a mounting bracket (3). The slide rail is fixedly connected to the frame (101) and extends along the first direction. The detector (1) is detachably connected to the mounting bracket (3). The mounting bracket (3) has a groove that can slide and cooperate with the slide rail.

4. The leaf-lubricating cylinder slippage early warning device according to claim 3, characterized in that, The mounting bracket (3) has a through hole, and the detector (1) has an external thread on its peripheral sidewall. The detector (1) passes through the through hole, and two nuts are threaded to the external thread of the detector (1) on both sides of the through hole, thereby detachably connecting the detector (1) to the mounting bracket (3).

5. The leaf-lubricating cylinder slippage early warning device according to claim 3, characterized in that, The detector (1) is a proximity switch, and the sensing element (2) is a metal sheet.

6. The leaf-lubricating cylinder slippage early warning device according to claim 3, characterized in that, The detector (1) is a photoelectric gate, and the sensing element (2) is a light-shielding sheet.

7. The leaf-lubricating cylinder slippage early warning device according to claim 3, characterized in that, The detector (1) is a photoelectric switch, and the sensing element (2) is a reflector.

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