Protective door detection device of filter tip receiver

Abstract

The utility model relates to the technical field of filter tip receivers, and discloses a filter tip receiver protective door detection device which comprises a contact detection module used for detecting the position of a protective door in a contact mode, the contact detection module comprises a cam and a limit switch, the cam is fixedly connected to one end of a door shaft of the protective door, and the limit switch is connected with the cam. The limiting switch is arranged at the position, corresponding to the cam, in the machine body, and when the protective door is in a closed state, the protruding part of the cam makes contact with a triggering mechanism of the limiting switch; the non-contact detection module is used for detecting the position of the protective door in a non-contact mode, the non-contact detection module comprises a sensor and a transceiver, the transceiver is arranged on the door shaft, the sensor is arranged at the position, corresponding to the transceiver, in the machine body, and when the protective door is in a closed state, the transceiver and the sensor are oppositely distributed and do not make contact with each other. The problems that in the prior art, a protective door switch is prone to failure, and safety accidents are prone to occurring are solved.

Description

Technical Field

[0001] This utility model relates to the field of mouth stick receiver technology, and in particular to a mouth stick receiver protective door detection device. Background Technology

[0002] The filter rod receiver is an auxiliary device on the cigarette production line. Its main function is to receive the filter rods (mouth rods) sent by the transmitter and transport them to the hopper of the cigarette machine's loading machine, ensuring that the cigarette machine can continuously obtain filter rods and guaranteeing production efficiency and stability.

[0003] For example, the ZJ118 filter rod receiver is used in conjunction with the ZJ118 high-speed cigarette making and receiving unit. Through guide rails, acceleration and deceleration components and rotary guides, the filter rod is changed from horizontal to vertical transmission to adapt to the inlet structure of the cigarette making machine hopper. This allows the emitted filter rods to be received and transported in an orderly manner to the receiving hopper of the cigarette making and receiving unit, ensuring the continuity and stability of the filter rod receiving process.

[0004] The existing protective door of the mouth rod receiver uses a cam-controlled limit switch. The cam is prone to loosening, causing the switch to fail. Since the conveyor roller of the mouth rod receiver's receiving channel rotates at high speed, it is not easy to judge the equipment's operating status when the switch fails, which can easily lead to safety accidents. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a detection device for the protective door of a mouthpiece receiver, which solves the problem that the protective door switch is prone to failure and safety accidents in the prior art.

[0006] This utility model solves the above-mentioned technical problems through the following technical means: a mouthpiece receiver protective door detection device, comprising a body and a protective door rotatably connected to the body via a door hinge, and further comprising:

[0007] A contact detection module for contact-type detection of the position of a protective door includes a cam and a limit switch. The cam is fixedly connected to one end of the door hinge of the protective door, and the limit switch is located in the body of the corresponding cam. When the protective door is in the closed state, the protruding part of the cam contacts the triggering mechanism of the limit switch.

[0008] A non-contact detection module for non-contact detection of the position of a protective door. The non-contact detection module includes a sensor and a transceiver. The transceiver is mounted on the door hinge, and the sensor is mounted inside the machine body at the corresponding transceiver position. When the protective door is closed, the transceiver and the sensor are distributed opposite to each other and do not contact each other.

[0009] The controller includes limit switches, sensors, and transceivers, all of which are connected to the controller via signals. The controller is also connected to a safety relay.

[0010] Optionally, the cam is coaxially arranged with the rotation axis of the transceiver. By integrating the cam and transceiver into the door hinge, it is ensured that both modules send signals simultaneously the moment the protective door closes to the end, thereby achieving redundant collaborative detection between the mechanical contact module and the non-contact detection module.

[0011] Optionally, the cam is a rotary cam.

[0012] Optionally, a fixed support is provided on the door hinge, and the transceiver is detachably connected to the fixed support. This facilitates the maintenance and adjustment of the transceiver.

[0013] Optionally, the controller is connected to an alarm device.

[0014] Optionally, the safety relay is connected to the mouthpiece receiver to control the receiving channel to slow down or stop.

[0015] Optionally, the mouth stick receiver may have multiple protective doors, and the modules of the protective doors are controlled in series. If the detection point of any module of any protective door is disconnected, the alarm device will sound an alarm, or the receiving channel of the mouth stick receiver will slow down or stop.

[0016] Optionally, the cam mounting section of the door hinge is located at the end of the door hinge. The cam mounting section has a non-circular outer cross-section, and the cam has a non-circular inner hole that matches the non-circular outer cross-section. The non-circular outer cross-section and the non-circular inner hole are interference-fitted. The interference fit of the non-circular structure can be used to limit the circumferential displacement of the cam.

[0017] Optionally, one axial side of the cam abuts against the shoulder of the door hinge, and the other side is provided with a locking nut for clamping the cam, the door hinge having a corresponding external thread. The locking nut is used to limit the axial displacement of the cam.

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

[0019] This invention incorporates contact and non-contact detection modules on the rotating shafts of the machine body and protective doors. A cam and transceiver are integrated into the door shaft, and the cam and transceiver are coaxially aligned. This allows for synchronous redundant monitoring as the protective door rotates and closes, achieving dual monitoring and verification of the protective door's status. This significantly reduces the risk of false alarms and missed detections. Disconnection of any detection point in any module of the protective door will trigger an alarm or cause the receiver channel of the mouthpiece receiver to slow down or stop. Attached Figure Description

[0020] Figure 1 This is an installation diagram of this utility model;

[0021] Figure 2 This is a schematic diagram of each module of this utility model;

[0022] Figure 3 This is a schematic diagram of an anti-loosening structure for the cam of this utility model.

[0023] Among them, 1-body, 11-door hinge, 111-non-circular outer cross section, 112-locking nut, 12-protective door, 21-cam, 22-limit switch, 31-transceiver, 32-sensor. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0025] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0026] like Figures 1-3 As shown, this utility model provides a mouthpiece receiver protective door detection device, which includes a body 1 and a protective door 12 rotatably connected to the body 1 via a door hinge 11. It also includes a contact detection module, a non-contact detection module, a controller, and a relay.

[0027] In this embodiment, the contact detection module is used to detect the position of the protective door 12 by contact. The contact detection module includes a cam 21 and a limit switch 22. The cam 21 is fixedly connected to one end of the door hinge 11 of the protective door 12. The limit switch 22 is fixedly installed in the body 1 at the position corresponding to the cam 21. When the protective door 12 is in the closed state, the protruding part of the cam 21 contacts the triggering mechanism of the limit switch 22, and the limit switch 22 can send a mechanical contact signal representing that the door is closed.

[0028] In this embodiment, to prevent the cam 21 from loosening, the cam mounting section of the door shaft 11 is located at the end of the door shaft 11. The cam mounting section has a non-circular outer cross section 111, for example, a regular hexagon. The cam 21 is provided with a non-circular inner hole that matches the cam mounting section. The non-circular outer cross section 111 and the non-circular inner hole are interference-fitted. One axial side of the cam 21 abuts against the shoulder of the door shaft 11, and the other side is provided with a locking nut 112 for pressing the cam 21. The door shaft 11 is provided with a corresponding external thread.

[0029] In this embodiment, a non-contact detection module is used to detect the position of the protective door 12 non-contactly. The non-contact detection module includes a sensor 32 and a transceiver 31. The transceiver 31 is mounted on the door hinge 11. Specifically, a fixed support is fixedly connected to the door hinge 11. The transceiver 31 is detachably connected to the fixed support, such as by a threaded connection, to facilitate the maintenance of the transceiver 31. The sensor 32 is located inside the body 1 at the corresponding position of the transceiver 31. Similarly, it is fixed to the body 1 by a threaded connection. When the protective door 12 is closed, the transceiver 31 and the sensor 32 are opposite to each other and do not contact each other. When the door is closed, the transceiver 31 moves closer to the sensor 32. When the distance between the two is small enough to generate a sensing signal, it indicates that the protective door 12 is closed correctly. The sensing signal is sent to the controller. The contacts of the controller remain normally closed. When any contact is not closed, the controller triggers an alarm device to warn that the protective door is not closed.

[0030] In this embodiment, the detection device also includes a controller. Limit switch 22, sensor 32, and transceiver 31 are all connected to the controller via signals. A safety relay is connected to the control system of the mouth stick receiver to control the receiving channel to decelerate or stop. Each module sends a signal to the controller, which is connected to an alarm device to warn that the protective door is not closed. The controller is also connected to a safety relay. The signal that the protective door is closed is transmitted from the controller to the safety relay, causing the contacts of the safety relay to be normally closed. When any contact is not closed, the safety relay sends an emergency signal to the mouth stick receiver, controlling the receiving channel (such as reducing or stopping the rotating roller) to decelerate or stop.

[0031] In this embodiment, cam 21 is a rotating cam 21, which is coaxially arranged with the rotation axis of transceiver 31, so that the two rotate synchronously and trigger synchronously. The height position relationship can be adjusted according to actual needs and is not limited. By integrating cam 21 and transceiver 31 into door hinge 11, it is ensured that the two modules send signals simultaneously at the moment the protective door 12 is closed, thereby realizing redundant collaborative detection between mechanical contact module and non-contact detection module.

[0032] In this embodiment, the number of protective doors 12 of the mouth stick receiver is four, and the modules of each protective door 12 are controlled in series. Specifically, the contact detection module and non-contact detection module in a single protective door 12 are connected in parallel, but the modules of each protective door 12 are controlled in series, so that if the detection point of any module of each protective door 12 is disconnected, the alarm device will sound an alarm, or the receiving channel of the mouth stick receiver will slow down or stop.

[0033] The working principle of this utility model is as follows:

[0034] When the detection device of this utility model is running, the limit switches 22 and sensors 32 of each protective door synchronously send signals to the controller. The controller can process the signals through the following logic: When the states are consistent: both report "door closed" and the equipment runs normally; when the states conflict: only one reports "door open" (such as the limit switch is closed but the sensor detects obstruction), the controller immediately triggers an alarm and prompts "redundant monitoring failure"; when the states are consistent but abnormal: both report "door open" and directly trigger a shutdown.

[0035] During this process, if the detection point of any module of each protective door 12 is disconnected, the alarm device will sound an alarm or the receiving channel of the mouth rod receiver will slow down or stop.

[0036] This invention integrates the cam 21 and transceiver 31 into the door hinge 11, enabling synchronous redundant monitoring as the protective door 12 rotates and opens and closes. This achieves dual status detection and verification of the protective door 12, thereby significantly reducing the risk of misjudgment and missed judgment.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A mouthpiece receiver protective door detection device, comprising a body (1) and a protective door (12) rotatably connected to the body (1) via a door hinge (11), characterized in that, Also includes: A contact detection module for contact detection of the position of a protective door, the contact detection module includes a cam (21) and a limit switch (22). The cam (21) is fixedly connected to one end of the door hinge (11) of the protective door (12). The limit switch (22) is set in the body (1) at the position corresponding to the cam (21). When the protective door (12) is in the closed state, the protruding part of the cam (21) contacts the triggering mechanism of the limit switch (22). A non-contact detection module for non-contact detection of the position of a protective door, the non-contact detection module includes a sensor (32) and a transceiver (31). The transceiver (31) is mounted on the door hinge (11). The sensor (32) is mounted inside the body (1) at the position corresponding to the transceiver (31). When the protective door (12) is closed, the transceiver (31) and the sensor (32) are distributed opposite to each other and do not contact each other. The controller is connected to the limit switch (22), sensor (32) and transceiver (31) via signal connection, and the controller is connected to a safety relay.

2. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The cam (21) is coaxial with the rotation axis of the transceiver (31).

3. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The cam (21) is a rotary cam (21).

4. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The door hinge (11) is provided with a fixed support, and the transceiver (31) is detachably connected to the fixed support.

5. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The controller is connected to an alarm device.

6. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The safety relay is connected to the mouthpiece receiver and is used to control the receiving channel to slow down or stop.

7. The mouthpiece receiver protective door detection device according to claim 1, characterized in that: The mouth stick receiver has multiple protective doors (12), and the modules between the protective doors (12) are controlled in series.

8. The mouthpiece receiver protective door detection device according to any one of claims 1-7, characterized in that: The cam mounting section of the door hinge (11) is located at the end of the door hinge (11). The cam mounting section has a non-circular outer cross section (111). The cam (21) is provided with a non-circular inner hole that matches the non-circular outer cross section (111). The non-circular outer cross section (111) and the non-circular inner hole are interference-fitted.

9. The mouthpiece receiver protective door detection device according to claim 8, characterized in that: The cam (21) abuts against the shoulder of the door hinge (11) on one axial side, and a locking nut (112) for pressing the cam (21) is provided on the other side. The door hinge (11) is provided with a corresponding external thread.

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