Anti-blocking discharging device of wire feeding machine capable of being connected out and wire feeding machine with anti-blocking discharging device

Abstract

The utility model relates to the technical field of tobacco production equipment, in particular to an anti-blocking discharging device of a cut tobacco feeding machine and the cut tobacco feeding machine with the anti-blocking discharging device. According to the anti-blocking discharging device of the cut tobacco feeder, the discharging port and the baffle are arranged, when blocked cut tobacco in the bin body needs to be discharged, the baffle can be opened to enable the cut tobacco to flow out and be emptied, and it is avoided that the cut tobacco in the bin body is manually dug out. The utility model further provides a scheme capable of being matched with other mechanisms of the cut tobacco feeder to discharge the cut tobacco in the stock bin, by arranging the sensor for detecting the working condition of the discharging port, the cut tobacco in the stock bin and the mechanism used for sending out the cut tobacco in the stock bin is sent into the discharging device and flows out through the discharging port, and the situation that the cut tobacco in the stock bin is manually dug out is avoided. The utility model further provides a preferred embodiment of the baffle and the positive pressure blowing pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco production equipment, in particular to a material-blocking-proof and removable wire feeder blanking device and a wire feeder containing the same. Background Art

[0002] At present, most domestic cigarette manufacturers use a new type of flexible down-suction tobacco feeder, which uses a conveyor belt to deliver the tobacco in the hopper to the top of the blanking device. A roller device is installed above the end of the conveyor belt. The roller loosens the tobacco on the belt and pushes it to the blanking device, avoiding the stratification and breakage of the tobacco.

[0003] This type of wire feeder has the following problems during production: First, since the negative pressure in the wire suction tube fluctuates instantaneously when it stops, when the wind in the rear channel of the wire suction tube stops, the negative pressure switch can still detect the signal, causing the silo to delay the dropping of tobacco. At this time, the tobacco will accumulate at the bottom of the dropping device, causing blockage and interruption of flow. Although methods such as adjusting the sensitivity of the negative pressure switch and adding positive pressure blowing have been adopted, the effect is still not ideal. Second, since the silo can only discharge the wire by combining with the dropping device, when the subsequent station of the dropping device fails, the dropping device will not be able to deliver the tobacco normally, causing the tobacco to be retained in the silo and the dropping device.

[0004] When the above situation occurs, the silo, conveyor belt and roller will also receive a stop command. At this time, the operator needs to manually dig out the tobacco in the silo and the dropping device. This process will increase the safety risk of the operator and cause quality problems of the tobacco.

[0005] Chinese patent CN211932527U provides a device for preventing the tobacco from being blocked in the suction tube of a wind-powered tobacco feeder. The device blocks the delayed tobacco from falling in the upper part of the hopper by setting a guide rod and a guide plate in the bin of the feeding device to prevent the tobacco from being blocked in the suction tube. However, the guide rod and the guide plate passively block the tobacco and have a probability of failure. The tobacco on the guide rod and the guide plate still need to be dug out manually, which may affect the quality of the tobacco. The device cannot actively take out the tobacco in the feeding device and the bin.

[0006] Therefore, providing a tobacco feeder blanking device that can actively take out tobacco shreds is a technical problem that needs to be solved urgently in the field. Utility Model Content

[0007] The purpose of the present application is to provide a material-blocking-proof and removable wire feeding machine blanking device, which can at least solve one of the above-mentioned technical problems.

[0008] The solution used by this application to solve the above technical problems is:

[0009] An anti-blocking and extractable wire-feeding machine blanking device, comprising a bin body, a supplementary air pipe, and a wire suction pipe. The wire suction pipe and the supplementary air pipe are both arranged at the bottom of the bin body and communicate with the bin body. The wire suction pipe is also connected to a negative pressure source to send out cut tobacco, and the supplementary air pipe is also connected to the external atmosphere to form gas convection. An outlet is provided at the bottom of the anti-blocking and extractable wire-feeding machine blanking device, and a baffle for closing the outlet is further included.

[0010] Further, the shape of the outlet is the same as the projected shape of the bin body on the plane where the outlet is located, and they have the same geometric center.

[0011] Further, a sensor for detecting whether the baffle closes the outlet is further included.

[0012] Further, clamping plates are arranged on the outer sides of the wire suction pipe and / or the supplementary air pipe, the sensor is a proximity switch, and the proximity switch is arranged on the clamping plate.

[0013] Further, the baffle is installed through a locking mechanism, and the locking mechanism includes a hinge and a locking part.

[0014] Further, a handle is provided at the bottom of the baffle.

[0015] Further, a positive pressure blowing pipe for disturbing the cut tobacco in the bin is further included.

[0016] Further, the supplementary air pipe is provided with a partition plate, and the cross section of the supplementary air pipe below the partition plate is closed to reduce the area of the air flow passing surface in the supplementary air pipe; the positive pressure blowing pipe is arranged on the partition plate of the supplementary air pipe and / or the upper wall of the wire suction pipe.

[0017] Further, two opposite transparent windows are provided on the bin body, and opposed photoelectric tubes are arranged outside the transparent windows.

[0018] The present application also provides a wire-feeding machine, comprising the anti-blocking and extractable wire-feeding machine blanking device as described above, and having the beneficial effects of the anti-blocking and extractable wire-feeding machine blanking device.

[0019] The beneficial effects of the present application are as follows:

[0020] 1. An outlet is provided at the bottom of the anti-blocking and extractable wire-feeding machine blanking device of the present application, and a baffle for closing the outlet is further included. Under normal circumstances, the baffle closes the outlet, and the cut tobacco flows into the wire suction pipe under the drive of negative pressure. The outlet and the baffle provided in the present application do not affect the original working process. When it is necessary to extract the blocked cut tobacco in the bin, the baffle can be opened to allow the cut tobacco to flow out and be emptied, avoiding manually digging out the cut tobacco in the bin.

[0021] 2. The present application also provides a solution for an anti-blocking and extractable wire-feeding machine blanking device that can cooperate with other mechanisms of the wire-feeding machine to discharge the cut tobacco in the bin. By setting a sensor to detect the working condition of the discharge port, the cut tobacco in the bin and the mechanism for sending the cut tobacco in the bin is sent into the blanking device and flows out through the discharge port, avoiding manual excavation of the cut tobacco in the bin.

[0022] 3. The present application also provides a preferred implementation of the baffle, including using a buckle mechanism to install the baffle so that the baffle remains connected to the machine body, making the operation of closing or opening the discharge port more convenient; and setting a handle to facilitate the operation of the baffle.

[0023] 4. The present application also provides a preferred implementation for reducing the frequency of discharging from the discharge port in the case of general blockage. By setting a positive pressure blowing pipe to relieve the general and relatively mild blockage of the wire suction port. A preferred setting method of the positive pressure blowing pipe is also provided, including installation in combination with a common blanking device, setting a transparent window and a pair of photoelectric tubes for automation, etc., improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The drawings in the following description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is a three-dimensional schematic diagram of a specific embodiment of the present invention;

[0026] Figure 2 is Figure 1 a bottom view schematic diagram of

[0027] Figure 3 is Figure 1 a top view schematic diagram of

[0028] Figure 4 is Figure 3 a partial enlarged view of

[0029] In the figure: 1, bin body; 2, wire suction pipe; 3, supplementary air pipe; 31, partition board; 4, discharge port; 5, baffle; 61, clamping plate; 62, proximity switch; 7, buckle; 8, handle; 9, positive pressure blowing pipe; 10, transparent window; 11, pair of photoelectric tubes. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] First, a commonly used flexible down-drawing type wire feeder includes a material bin and a blanking device. The cut tobacco in the material bin is fed into the blanking device through a conveyor belt and a roller.

[0032] For the blanking device of the anti-blocking and extractable wire feeder of this application, please refer to the attached Figures 1-4 , including: a bin body 1, a wire suction pipe 2, and a supplementary air pipe 3. The wire suction pipe 2 and the supplementary air pipe 3 are both arranged at the bottom of the bin body 1 and communicate with the bin body 1. The wire suction pipe 2 is also connected to a negative pressure source to send out the cut tobacco, and the supplementary air pipe 3 is also connected to the external atmosphere to form gas convection. The bottom of the anti-blocking and extractable wire feeder blanking device is provided with a discharge port 4, and the discharge port 4 is arranged between the wire suction pipe 2 and the supplementary air pipe 3; the anti-blocking and extractable wire feeder blanking device also includes a baffle 5 that can close the discharge port 4.

[0033] When the equipment is running normally, the baffle 5 closes the discharge port 4, and the cut tobacco is driven by negative pressure and flows into the wire suction pipe 2. When it is necessary to extract the cut tobacco, move the baffle 5 to open the discharge port 4, and the blocked cut tobacco in the bin body 1 can flow out and be emptied, avoiding manually digging out the cut tobacco in the bin body 1.

[0034] In some specific embodiments, the shape of the discharge port 4 is the same as the projection shape of the bin body 1 on the plane where the discharge port 4 is located, and they have the same geometric center. Setting the discharge port 4 in this way can make the fluidity of the cut tobacco better, easier to flow out, and reduce the blockage of the cut tobacco.

[0035] In some cases, it is also necessary to extract the material bin above the blanking device and the mechanism for sending the cut tobacco in the material bin. For example, when the air delivery of the wire suction pipe 2 stops, the mechanism for sending the cut tobacco in the material bin is controlled by the control system to stop, and there is cut tobacco in the material bin above the blanking device and the mechanism for sending the cut tobacco in the material bin.

[0036] In some specific embodiments, the blanking device of the anti-blocking and extractable wire feeder further includes a sensor capable of detecting whether the baffle 5 closes the discharge port 4. When the sensor detects that the baffle 5 does not close the discharge port 4, it can send a feeding signal to the silo, so that the cut tobacco in the silo and the mechanism for sending the cut tobacco in the silo into the blanking device, and flows out through the discharge port 4. The setting method of the sensor is not limited. In some embodiments, a clamping plate 61 is provided on the outer side of the wire suction pipe 2 and / or the air supply pipe 3, and the sensor is set as a proximity switch 62, and the proximity switch 62 is arranged on the clamping plate 61. The proximity switch 62 is a sensor device for detecting and sensing the approach of an object. Using principles such as electromagnetism, optoelectronics, and ultrasonic waves, when an object approaches or leaves, it can generate corresponding signal outputs. Detecting whether the baffle 5 closes the discharge port 4 through the proximity switch 62 can make the detection more accurate and efficient.

[0037] Whether to set a locking mechanism is not limited. In some specific embodiments, the baffle 5 is connected to the wire suction pipe 2 and / or the air supply pipe 3 through a locking mechanism, and the locking mechanism includes a hinge and a locking part 7. The locking mechanism can keep the baffle 5 connected to the machine body, making the operation of closing or opening the discharge port 4 by the baffle 5 more convenient.

[0038] In some specific embodiments, a handle 8 is provided at the bottom of the baffle 5 for an operator to hold, facilitating the operator to manually close or open the discharge port 4.

[0039] Considering the general blockage situation in the silo body 1 during the normal production process, in order to reduce the frequency of discharging from the discharge port 4, in some embodiments, the blanking device of the anti-blocking and extractable wire feeder of the present application further includes a positive pressure blowing pipe 9. It is used to provide disturbance through positive pressure blowing during general blockage to form an air passage, so that the general blocked cut tobacco can normally pass through the wire suction pipe 2, solving general and relatively minor blockage situations.

[0040] The setting method of the positive pressure blowing pipe 9 is not limited, as long as it can disturb the cut tobacco in the silo and prevent the cut tobacco from gathering in the wire suction pipe 2. Considering the structure of the existing blanking device, the positive pressure blowing pipe 9 has the best blowing effect and is most convenient for installation when arranged on the wire suction pipe 2 and / or the air supply pipe 3.

[0041] Furthermore, the positive pressure blowing pipe 9 at the wire suction pipe 2 mainly makes the negative pressure in the wire suction pipe 2 act on the cut tobacco in the silo body 1 by creating a channel in the cut tobacco. In some embodiments, the positive pressure blowing at the wire suction pipe 2 is arranged above the pipe wall of the wire suction pipe 2. There is less cut tobacco above the pipe wall of the wire suction pipe 2, which is easy to form a channel and is easy to connect in combination with the pipe wall.

[0042] Furthermore, when the positive pressure blowing pipe 9 at the supplementary air pipe 3 is centered on the positive suction wire pipe 2, the effect of preventing tobacco cuttings from accumulating is the best. In addition, some existing supplementary air pipes 3 are provided with partitions 31, and the cross-section of the supplementary air pipe below the partition 31 is closed to reduce the area of the air flow passage surface in the supplementary air pipe 3 and avoid excessive pressure relief. In some embodiments, the positive pressure blowing pipe 9 at the supplementary air pipe 3 is arranged on the partition. It is easier to center on the positive suction wire pipe 2 and is easy to connect in combination with the existing structure.

[0043] Considering that when there is blockage, some devices including the positive pressure blowing pipe 9 need to make corresponding judgments and responses to the blockage situation. In some embodiments, the silo body 1 is provided with a transparent window 10, and a pair of photoelectric tubes 11 is arranged outside the transparent window. Setting the transparent window and the pair of photoelectric tubes at a certain height can obtain the information of the blockage condition for making corresponding judgments and responses.

[0044] The following describes the specific implementation manners of the present application in conjunction with a specific embodiment. Please refer to the attached Figures 1-4 .

[0045] A specific embodiment of a blockage-preventing and extractable wire feeding machine blanking device includes: a silo body 1, two wire suction pipes 2, and two supplementary air pipes 3. The wire suction pipes 2 and the supplementary air pipes 3 are both arranged at the bottom of the silo body 1 and communicate with the silo body 1. The wire suction pipes 2 are also connected to a negative pressure source to send out tobacco cuttings, and the supplementary air pipes 3 are also connected to the external atmosphere to form gas convection.

[0046] The bottom of the specific embodiment of the blockage-preventing and extractable wire feeding machine blanking device is provided with a discharge port 4, and the discharge port 4 is arranged between the wire suction pipes 2 and the supplementary air pipes 3. The shape of the discharge port 4 and the projection shape of the silo body 1 on the plane where the discharge port 4 is located are both rectangular and have the same geometric center.

[0047] The blockage-preventing and extractable wire feeding machine blanking device further includes a baffle 5 for closing the discharge port 4. The baffle 5 is located at the bottom of the silo body 1 in the area surrounded by the two wire suction pipes 2 and the two supplementary air pipes 3. The baffle 5 is connected to the silo body 1 through a locking mechanism. The locking mechanism includes a hinge and a locking part 7. One end of the baffle 5 close to the two wire suction pipes 2 is rotatably connected to the bottom of the silo body 1 through a hinge, and the other end of the baffle 5 is connected to the bottom of the silo body 1 between the two supplementary air pipes 3 through the locking part 7. A handle is arranged at the bottom of the baffle 5. The locking part 7 includes a locking hook arranged between the two wire suction pipes 2 and a lock arranged on the baffle. The locking hook can be hooked in or out to realize the locking or opening of the locking part.

[0048] Under normal working conditions, the baffle 5 closes the discharge port 4, and the locking part is in a locked state, and the locking hook is hooked into the lock. When it is necessary to discharge tobacco cuttings, the locking part is opened, and then the handle can be held to rotate the baffle 5 along the hinge to open the discharge port 4.

[0049] A clamping plate 61 is provided between the two supplementary air pipes 3, and a proximity switch 62 is installed on the clamping plate 61. When the proximity switch 62 detects that the baffle 5 is far away, it is determined that the baffle 5 does not close the discharge port 4, and the material in the bin is discharged into the bin body 1 and discharged through the discharge port 4.

[0050] The specific embodiment of the anti-blocking and extractable wire feeding machine blanking device further includes four positive pressure blowing pipes 9, which are respectively arranged on the partition plates of the two supplementary air pipes 3 and the upper wall of the channel of the wire suction pipe 2. The bin body 1 is provided with two opposite transparent windows 10, and a pair of photoelectric tubes 11 are arranged outside the transparent windows 10. When the pair of photoelectric tubes 11 detect blockage, the positive pressure blowing pipes 9 located in the supplementary air pipes 3 and the wire suction pipe 2 operate intermittently and alternately for blowing, so as to suck away the retained cut tobacco through the wire suction pipe 2 as much as possible.

[0051] This application also provides a wire feeding machine, including the above-mentioned anti-blocking and extractable wire feeding machine blanking device. It is easy to understand that this wire feeding machine has all the beneficial effects of the above-mentioned anti-blocking and extractable wire feeding machine blanking device.

[0052] The content described above can be implemented alone or in various combinations, and these variant ways are all within the protection scope of the present utility model.

[0053] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0054] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A material-blocking-proof and removable wire feeding machine blanking device, characterized in that: The invention comprises a bin body (1), a tobacco shavings suction tube (2), and an air supply tube (3), wherein the tobacco shavings suction tube (2) and the air supply tube (3) are both arranged at the bottom of the bin body (1) and are in communication with the bin body (1), the tobacco shavings suction tube (2) is also in communication with a negative pressure source to deliver tobacco shavings, and the air supply tube (3) is also in communication with the external atmosphere to form gas convection, and the anti-blocking material dischargeable tobacco shavings feeding machine blanking device is provided with a discharge port (4) at the bottom thereof, and further comprises a baffle (5) capable of closing the discharge port (4).

2. The anti-blocking material receiving and discharging type wire feeding machine blanking device according to claim 1 is characterized in that: The shape of the discharge port (4) is the same as the projection shape of the silo body (1) on the plane where the discharge port (4) is located, and has the same geometric center.

3. The anti-blocking material accessible wire feeder blanking device according to claim 1 is characterized in that: It also includes a sensor capable of detecting whether the baffle (5) closes the discharge port (4).

4. The anti-blocking material outlet type wire feeder blanking device according to claim 3 is characterized in that: A clamping plate (61) is provided on the outside of the wire suction tube (2) and / or the air supply tube (3); the sensor is configured as a proximity switch (62); and the proximity switch (62) is disposed on the clamping plate (61).

5. The anti-blocking material accessible wire feeder blanking device according to claim 1 is characterized in that: The baffle (5) is installed via a locking mechanism, and the locking mechanism comprises a hinge and a locking member (7).

6. The anti-blocking material receiving and discharging type wire feeding machine blanking device according to claim 1 is characterized in that: A handle (8) is provided at the bottom of the baffle (5).

7. The anti-blocking material receiving and discharging type wire feeder blanking device according to claim 1 is characterized in that: It also includes a positive pressure blowing pipe (9) which can cause disturbance to the tobacco in the silo.

8. The anti-blocking material receiving and discharging type wire feeder blanking device according to claim 7 is characterized in that: The air supply pipe (3) is provided with a partition (31), and the cross section of the air supply pipe (3) below the partition (31) is closed to reduce the area of ​​the air flow passing through the air supply pipe (3); the positive pressure blowing pipe (9) is arranged on the partition (31) of the air supply pipe (3) and / or the upper wall of the wire suction pipe (2).

9. The anti-blocking material accessible wire feeder blanking device according to claim 7, characterized in that: The warehouse body (1) is provided with two opposite transparent windows (10), and a corresponding photoelectric tube (11) is provided outside the transparent windows (10).

10. A wire feeding machine, characterized in that: It comprises the anti-blocking material take-out type wire feeding machine blanking device as described in any one of claims 1-9.

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