Wire feeding device

Abstract

The utility model discloses a cut tobacco feeding device which comprises a feeding elevator, a cut tobacco suction hopper and a cut tobacco feeding air pipe, a discharging port of the feeding elevator is arranged over a hopper body of the cut tobacco suction hopper in a butt joint mode, and a branch pipeline of the cut tobacco suction hopper is communicated with the cut tobacco feeding air pipe in a butt joint mode. And the negative pressure environment in the wire feeding air pipe acts on the interior of the hopper. The negative pressure power of the air pipe is used for being matched with the cut tobacco suction hopper to achieve the cut tobacco feeding function, energy consumption can be saved, labor intensity can be lowered, linkage between devices is enhanced, and the production rhythm is easy to control.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire feeding production lines, and in particular relates to a wire feeding device. Background Art

[0002] When the finished tobacco is provided to the packaging workshop by wind feeding, the tobacco needs to be continuously and evenly transported to the air duct outlet, and then the tobacco is drawn to the designated process by negative pressure after the packaging unit sends a material request signal.

[0003] In terms of the tobacco feeding device, it is currently more common to use a belt conveyor to deliver the finished tobacco to the rotating drum, and then the material is loosened by the rotating drum and the material leveler before being sent to the air duct. In this type of tobacco feeding device, the rotating drum is located close to the ground, which will occupy a large production space; the motor equipped with the rotating drum is noisy and consumes high power; during production operations, the air duct and the rotating drum motor need to be controlled at the same time to execute the production plan and control the production rhythm, and the linkage is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a wire feeding device, which realizes the wire feeding function by means of the negative pressure power of the air duct itself and cooperates with the wire suction hopper, which can not only save energy consumption and reduce labor intensity, but also enhance the linkage between equipments and make the production rhythm easy to control.

[0005] The utility model adopts a technical solution to solve its technical problem, which is to propose a wire feeding device, including a feeding elevator, a wire suction hopper, and a wire feeding air duct. The unloading port of the feeding elevator is docked and arranged directly above the hopper of the wire suction hopper, and the branch pipe of the wire suction hopper is docked and connected with the wire feeding air duct, so that the negative pressure environment in the wire feeding air duct acts on the hopper.

[0006] Furthermore, it also includes a belt conveyor for conveying shredded tobacco, and the output end of the belt conveyor is docked above the feeding bin of the feeding elevator.

[0007] Furthermore, it also includes a material leveling roller, which is suspended above the conveying surface of the belt conveyor and is arranged close to the output end of the belt conveyor.

[0008] Furthermore, the material leveling roller is horizontally placed on the conveying surface of the belt conveyor, and there is elastic contact or a gap between the material leveling roller and the conveying surface of the belt conveyor.

[0009] Furthermore, a material blocking sensor is provided at the position where the hopper and the branch pipe are connected, and an electric control switch is provided at the position where the branch pipe and the wire feeding air duct are connected.

[0010] Furthermore, it also includes a controller, the electric control switch and the material blocking sensor are electrically connected to the controller respectively, and the controller is electrically connected to the feeding elevator.

[0011] Furthermore, the wire feeding air duct is provided with a built-in negative pressure sensor, and the negative pressure sensor is electrically connected to the controller.

[0012] Furthermore, the hopper is in a square cone shape, the upper opening of the hopper is connected to the discharge port of the feeding elevator, the lower inner diameter of the hopper is smoothly contracted to form a lower opening, and the lower opening is connected to the branch pipe; the blockage sensor is arranged on the side wall of the lower opening.

[0013] Furthermore, the branch pipeline includes a butt-joint pipe and a plurality of branch pipes butt-jointly connected below the butt-joint pipe, and the butt-joint pipe is butt-jointly connected with the lower end opening.

[0014] Furthermore, the multiple branch pipes include at least a first branch pipe and a second branch pipe, and the first branch pipe and / or the second branch pipe are connected to the wire feeding air duct.

[0015] Furthermore, the feeding silo is provided with an openable and closable cover plate, and the cover plate is used to seal / close the feeding silo.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a tobacco thread feeding device which gets rid of the restriction of the rotating drum, realizes the tobacco thread feeding function by adopting the tobacco thread suction hopper in cooperation with the negative pressure power of the air duct, saves the rotating drum equipment, namely saves the space and ensures the normal transportation of tobacco thread.

[0018] The utility model constructs a wire feeding electric control system through a material blocking sensor carried on a wire suction hopper, an electric control switch at a duct port and a controller, so as to improve wire feeding quality, reduce labor intensity and reduce fault frequency.

[0019] The wire feeding electronic control system can realize the effect of automatic control of wire feeding progress. When blockage occurs, the feeding elevator can be automatically stopped and the tobacco input can be reduced until there is no tobacco blocking the blockage sensor, and then the feeding elevator can be resumed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of a production line of a wire feeding device;

[0022] Figure 2 It is a side view structural diagram of the wire suction hopper;

[0023] Figure 3 Schematic diagram of the branch pipe structure of the wire suction hopper.

[0024] In the figure: 1, belt conveyor; 2, material leveling roller; 3, feeding elevator; 4, wire suction hopper; 5, material blocking sensor; 6, electric control switch; 7, wire feeding air duct; 41, hopper; 42, branch pipe; 421, butt pipe; 422, first branch pipe; 423, second branch pipe. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0026] The utility model embodiment provides a wire feeding device, see Figure 1 , Figure 2 , Figure 3 , mainly includes a feeding elevator 3, a wire suction hopper 4, and a wire feeding air duct 7. The unloading port of the feeding elevator 3 is connected to the hopper 41 of the wire suction hopper 4, and the branch pipe 42 of the wire suction hopper 4 is connected to the wire feeding air duct 7, so that the negative pressure environment in the wire feeding air duct 7 acts on the hopper 41.

[0027] In the present application, the tobacco shreds are buffered by the wire suction hopper 4, and the negative pressure power in the wire feeding air duct 7 is directly "connected" to the wire suction hopper 4, so that the wire feeding air duct 7 can suck away the tobacco shreds in the wire suction hopper 4, thereby achieving the wire feeding effect. In this process, the feeding elevator 3 continuously discharges materials into the wire suction hopper 4, and the wire feeding air duct 7 continuously sucks away the tobacco shreds. It can be understood that the tobacco shreds are directly sucked away in the wire suction hopper 4, and the secondary accumulation phenomenon is minimized, which can effectively reduce the crushing and stratification phenomena generated during the tobacco shreds transportation process.

[0028] A belt conveyor 1 for conveying tobacco shreds may be provided at the front end of the tobacco feeding device of the present application. The belt conveyor 1 is a front end device of the feeding elevator 3 and is used to convey the tobacco shreds to the loading bin of the feeding elevator 3 .

[0029] Specifically, the output end of the belt conveyor 1 is connected to the upper part of the feeding bin of the feeding elevator 3, such as Figure 1 As shown in , the input end of the belt conveyor 1 is loaded manually or by other loading equipment.

[0030] In order to ensure the looseness of the shredded tobacco, a shaving roller 2 may be mounted on the belt conveyor 1 to scatter the shredded tobacco on the conveying surface of the belt conveyor 1 .

[0031] Specifically, the sparging roller 2 can be suspended horizontally on the conveying surface of the belt conveyor 1, and the distance between the sparging roller 2 and the conveying surface can be adaptively adjusted according to parameters such as the quality and size of the tobacco.

[0032] For example, the leveling roller 2 and the conveying surface can be set to be in elastic contact to loosen all the tobacco on the conveying surface; the leveling roller 2 can also be suspended above the conveying surface so that there is a certain gap between the two, so as to loosen most of the tobacco on the conveying surface.

[0033] Based on the operation mode of the belt conveyor 1 , the leveling roller 2 can be arranged at the rear end of the belt conveyor 1 so that the tobacco can be loosened after a relatively long operation on the belt conveyor 1 , that is, the leveling roller 2 is arranged close to the output end of the belt conveyor 1 .

[0034] It is understandable that when the tobacco runs on the belt conveyor 1, a rolling effect will be produced to assist the leveling roller 2 in loosening the tobacco. Placing the leveling roller 2 at the rear end is conducive to the loosening of the tobacco and reduces the rate of tobacco breakage and shredding.

[0035] Pre-loosening is performed on the belt conveyor 1, and the tobacco is sucked away by the tobacco suction hopper 4 directly connected to the tobacco feeding air duct 7, which can effectively reduce the breakage and stratification of tobacco during transportation, effectively solve the tobacco stratification phenomenon, ensure the tobacco structure, and improve the whole tobacco rate.

[0036] In the embodiment of the present application, the wire suction hopper 4 includes an upper structure hopper 41 and a lower structure branch pipe 42, which are directly connected to each other. The hopper 41 is connected to the feeding elevator 3 and can receive tobacco for buffering, while the branch pipe 42 is connected to the wire feeding air duct 7, and can lead the negative pressure environment of the wire feeding air duct 7 into the hopper 41, thereby sucking away the tobacco therein to realize the wire feeding operation.

[0037] Specifically, the hopper 41 is in a square cone shape, the upper opening of the hopper 41 is butted with the unloading port of the feeding elevator 3, the lower inner diameter of the hopper 41 is smoothly contracted to form a lower opening, and the lower opening is butted and connected with the branch pipe 42. The branch pipe 42 includes a butt pipe 421 and a plurality of branch pipes butt-connected below the butt pipe 421, and the butt pipe 421 is butt-connected with the lower opening.

[0038] Exemplarily, the plurality of branch pipes include at least a first branch pipe 422 and a second branch pipe 423 , and the first branch pipe 422 and / or the second branch pipe 423 are connected to the wire feeding air pipe 7 in a butt connection.

[0039] As a feasible embodiment, the first branch pipe 422 is connected to the first wire feeding air duct 7, and the second branch pipe 423 is connected to the second wire feeding air duct 7; when the wire making station corresponding to the first wire feeding air duct 7 sends a material request signal, the first branch pipe 422 is connected to the first wire feeding air duct 7 to supply wire to the corresponding wire making station; when the wire making station corresponding to the second wire feeding air duct 7 sends a material request signal, the second branch pipe 423 is connected to the second wire feeding air duct 7 to supply wire to the corresponding wire making station; that is, the connection relationship between the branch pipes and the wire feeding air duct 7 can be controlled according to the material request signal.

[0040] In the embodiment of the present application, based on the above feasible control strategy, a material blocking sensor 5 is provided at the position where the hopper 41 and the branch pipe 42 are connected, so as to detect whether there is material blocking in the hopper 41; an electric control switch 6 is provided at the position where the branch pipe 42 and the wire feeding air pipe 7 are connected, and the electric control switch 6 is used to control the on-off of the branch pipe and the wire feeding air pipe 7. As a feasible embodiment, the material blocking sensor 5 can be provided on the side wall of the lower end opening of the hopper 41.

[0041] The blocking sensor 5 can be a beam-type photoelectric sensor. When the efficiency of tobacco in the hopper 41 being sucked away is low, tobacco will accumulate in the hopper 41, thereby blocking the photoelectric sensor and triggering a blocking signal. The detection signal of the blocking sensor 5 can effectively feedback the tobacco buffering situation in the hopper. The setting height of the blocking sensor 5 in the hopper 41 can be determined according to actual conditions.

[0042] Further, an observation window and an observation door can be provided on the side wall of the hopper 41, and once the blocking sensor 5 alarms, it can be immediately checked whether there is a false triggering phenomenon, so as to facilitate timely processing. For example, if the smoke ash blocks the sensor, the observation door can be opened to clean it directly.

[0043] In the embodiment of the present application, the feeding power of the tobacco shreds comes from the negative pressure of the wire feeding air duct 7 , and a negative pressure sensor can be built into the wire feeding air duct 7 to detect the start-up status of the wire feeding air duct 7 .

[0044] At the same time, the present application sets a controller to perform corresponding control operations according to the feedback signal of the sensor, the electric control switch 6 and the material blocking sensor 5 are electrically connected to the controller respectively, the controller is electrically connected to the feeding elevator 3, and the negative pressure sensor is electrically connected to the controller.

[0045] The main working process of the wire feeding device of this application is as follows:

[0046] The operator transports the finished tobacco box under the tobacco storage cabinet to the site, unpacks the box, pours the tobacco into the belt conveyor 1, and after being pre-loosened by the leveling roller 2, the tobacco enters the feeding bin of the feeding elevator 3 for temporary storage, and is then transported to the hopper 41 by the feeding elevator 3;

[0047] After the subsequent production unit or silk-making station sends a material request signal, the electric control switch 6 is turned on, and the negative pressure suction effect in the wire feeding air duct 7 is conducted to the hopper 41 through the branch pipe 42, so that the tobacco is sucked into the wire feeding air duct 7 and transported to the corresponding production unit or silk-making station.

[0048] In this process, when the wire feeding air duct 7 is connected to the branch pipe 42, the negative pressure sensor will detect a negative pressure signal and send it to the controller, which will start the feeding elevator 3 to realize the feeding operation of the wire suction hopper 4.

[0049] Based on the operating environment of the wire feeding device of this application, it can be known that:

[0050] When the wire feeding air duct 7 is started, the feeding elevator 3 is ready for operation; when the wire feeding air duct 7 is stopped, the feeding elevator 3 is not ready for operation.

[0051] When the hopper 41 is blocked, the feeding of the feeding elevator 3 should be temporarily suspended to wait for the continuous consumption of the tobacco by the wire feeding air duct 7; when the hopper 41 is not blocked, the feeding of the feeding elevator 3 should be maintained.

[0052] When multiple wire feeding air ducts 7 are started, the feeding speed of the feeding elevator 3 should be increased appropriately to avoid insufficient wire feeding.

[0053] In summary, when the wire feeding device of the present application is in operation, a wire feeding electric control system can be constructed through the controller, the negative pressure sensor, the material blocking sensor 5, the electric control switch 6 and the feeding elevator 3, and its basic control logic is as follows:

[0054] When the material request signal is detected, the controller opens the electric control switch 6 on the corresponding wire feeding air duct 7, so that the wire feeding air duct 7 is connected with the branch pipe 42, thereby triggering the negative pressure sensor to output a negative pressure electrical signal to the controller, and then starts the feeding elevator 3 through the controller to feed the wire suction hopper 4, so that the tobacco enters the wire feeding air duct 7.

[0055] At the same time, in order to prevent the occurrence of tobacco blockage failure, when there is no negative pressure or insufficient negative pressure, the tobacco will stay under the hopper 41. At this time, the blocking sensor 5 will be blocked. After the blocking signal is detected, after a short delay, the controller will stop the feeding operation of the feeding elevator; when the blocking signal disappears, the negative pressure sensor will re-trigger the feeding elevator to start the feeding operation.

[0056] It is understandable that when material blockage occurs, the negative pressure sensor will output an electrical signal of no negative pressure, and the material blockage sensor 5 will also output a material blockage signal synchronously. When the controller receives any one of the above two signals, the feeding operation of the feeding elevator can be stopped. Only when the tobacco is sucked away, the photoelectric sensor is not blocked, and the negative pressure signal is normal and the material request signal is normal, can the operation of the feeding elevator 3 be restored.

[0057] It is understandable that the feeding elevator 3 lifts the tobacco at a constant speed and drops it into the wire suction hopper 4. The size of the baffle of the feeding bin can be appropriately increased to ensure the storage quantity of tobacco so that it can meet the wire supply demand when multiple branches of the wire suction hopper 4 demand materials simultaneously. When it is detected that the wire feeding air ducts 7 connected to multiple branches have material demand signals, the running speed of the feeding elevator 3 can be appropriately increased; otherwise, the running speed of the feeding elevator is reduced, which can effectively meet the production rhythm.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0059] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A wire feeding device, characterized in that: It comprises a feeding elevator (3), a wire suction hopper (4), and a wire feeding air duct (7); a discharge port of the feeding elevator (3) is docked and arranged just above a hopper (41) of the wire suction hopper (4); a branch pipe (42) of the wire suction hopper (4) is docked and connected to the wire feeding air duct (7), so that the negative pressure environment in the wire feeding air duct (7) acts on the hopper (41).

2. A wire feeding device according to claim 1, characterized in that: It also comprises a belt conveyor (1) for conveying shredded tobacco, wherein the output end of the belt conveyor (1) is docked and arranged above the loading bin of the feeding elevator (3).

3. A wire feeding device according to claim 2, characterized in that: It also comprises a material leveling roller (2), the material leveling roller (2) being suspended above the conveying surface of the belt conveyor (1), and the material leveling roller (2) being arranged close to the output end of the belt conveyor (1).

4. A wire feeding device according to claim 3, characterized in that: The material leveling roller (2) is placed horizontally on the conveying surface of the belt conveyor (1), and there is elastic contact or a gap between the material leveling roller (2) and the conveying surface of the belt conveyor (1).

5. A wire feeding device according to claim 1, characterized in that: A material blocking sensor (5) is provided at a position where the hopper (41) and the branch pipe (42) are butted against each other, and an electric control switch (6) is provided at a position where the branch pipe (42) and the wire feeding air pipe (7) are butted against each other.

6. A wire feeding device according to claim 5, characterized in that: It also includes a controller, the electric control switch (6) and the material blocking sensor (5) are electrically connected to the controller respectively, and the controller is electrically connected to the feeding elevator (3).

7. A wire feeding device according to claim 6, characterized in that: The wire feeding air duct (7) is internally provided with a negative pressure sensor, and the negative pressure sensor is electrically connected to the controller.

8. A wire feeding device according to claim 5, characterized in that: The hopper (41) is in a square cone shape, the upper opening of the hopper (41) is butted against the discharge port of the feeding elevator (3), the lower inner diameter of the hopper (41) is smoothly contracted to form a lower opening, and the lower opening is butted against and communicated with the branch pipe (42); the material blocking sensor (5) is arranged on the side wall of the lower opening.

9. A wire feeding device according to claim 8, characterized in that: The branch pipeline (42) comprises a butt-joint pipe (421) and a plurality of branch pipes butt-jointly connected to the butt-joint pipe (421) below; the butt-joint pipe (421) is butt-jointly connected to the lower end opening.

10. A wire feeding device according to claim 9, characterized in that: The multiple branch pipes include at least a first branch pipe (422) and a second branch pipe (423); the first branch pipe (422) and / or the second branch pipe (423) are butt-connected to the wire feeding air pipe (7).

Images