Storage type feeding machine with material level detection device

Abstract

The storage type feeding machine comprises a first conveying belt, a second conveying belt, a first high-position detection switch, a first low-position detection switch and a controller which are electrically connected, when materials on the second conveying belt trigger the first high-position detection switch, the first conveying belt does not operate, the second conveying belt operates, and when the materials on the second conveying belt trigger the first low-position detection switch, the first low-position detection switch does not operate. And when the materials on the second conveying belt do not trigger the first low-position detection switch, the first conveying belt runs, and the second conveying belt does not run. According to the material level detection device provided by the embodiment of the invention, the height of the material is detected through the first high-position detection switch and the first low-position detection switch, and starting and stopping of the first conveying belt and the second conveying belt are controlled according to the distribution condition of the material, so that operation of the first conveying belt and the second conveying belt is more matched; the material circulation between the first conveying belt and the second conveying belt is smoother and more stable, so that the material supply from the second conveying belt to other equipment is smoother, more uniform and more stable.

Description

Technical Field

[0001] The present application relates to the technical field of tobacco shreds conveying, and in particular to a storage-type feeder with a material level detection device. Background Art

[0002] The warehouse feeder has a certain material storage capacity and can realize continuous material supply. The current warehouse feeder usually includes a material box and a steep-angle lifting belt. A horizontal conveyor belt is arranged in the material box. The horizontal conveyor belt conveys the material in the material box to the feeding port of the steep-angle lifting belt, and then the material is supplied to other equipment via the steep-angle lifting belt. In the actual material supply of the warehouse feeder, it is found that due to the difference in conveying efficiency between the horizontal conveyor belt and the steep-angle lifting belt, when the conveying efficiency of the horizontal conveyor belt is greater than that of the steep-angle lifting belt, it will cause the material to accumulate between the horizontal conveyor belt and the steep-angle lifting belt, affecting the smoothness of the conveying. When the conveying efficiency of the horizontal conveyor belt is less than that of the steep-angle lifting belt, the horizontal conveyor belt will not supply enough material to the steep-angle lifting belt, and the steep-angle lifting belt will not supply material to other equipment evenly. Therefore, the uniformity and smoothness of the material supply of the warehouse feeder need to be improved. Utility Model Content

[0003] The purpose of the present application is to provide a warehouse-type feeder with a material level detection device, which can supply materials more smoothly and evenly, thereby effectively solving the shortcomings of the prior art.

[0004] To this end, in a first aspect, an embodiment of the present application provides a storage feeder with a material level detection device, comprising:

[0005] A first conveyor belt having a feed end and a discharge end;

[0006] A second conveyor belt having a feed end and a discharge end, wherein the discharge end of the first conveyor belt supplies material to the feed end of the second conveyor belt;

[0007] A first high-position detection switch is located above the second conveyor belt near the feed end;

[0008] A first low-position detection switch is located above the second conveyor belt near the feed end, and the height of the first low-position detection switch is lower than the height of the first high-position detection switch;

[0009] A controller is electrically connected to the first conveyor belt, the second conveyor belt, the first high-position detection switch, and the first low-position detection switch respectively;

[0010] Among them, when the material on the second conveyor belt triggers the first high-level detection switch, the first conveyor belt does not run and the second conveyor belt runs; when the material on the second conveyor belt does not trigger the first low-level detection switch, the first conveyor belt runs and the second conveyor belt does not run.

[0011] In a possible implementation, it also includes a material height detection switch, which is located above the intersection of the first conveyor belt and the second conveyor belt, and the material height detection switch is electrically connected to the controller. When the material on the second conveyor belt triggers the first high-level detection switch and the material height detection switch detects that the material height at the intersection of the first conveyor belt and the second conveyor belt is above a preset value, the first conveyor belt does not run and the second conveyor belt runs; when the material on the second conveyor belt triggers the first high-level detection switch and the material height detection switch detects that the material height at the intersection of the first conveyor belt and the second conveyor belt is less than a preset value, the first conveyor belt runs.

[0012] In a possible implementation, the material height detection switch is a grating.

[0013] In a possible implementation, the first high-level detection switch and the first low-level detection switch are both closer to the middle of the second conveyor belt than the material height detection switch.

[0014] In a possible implementation manner, the material conveying direction of the first conveyor belt is horizontal.

[0015] In a possible implementation, the material conveying direction of the second conveyor belt is an inclined direction in a vertical plane, and the height of the discharge end of the second conveyor belt is higher than the height of the feed end of the second conveyor belt.

[0016] In a possible implementation, it also includes a second high-position detection switch and a second low-position detection switch, which are located above the feed end of the first conveyor belt, and the height of the second high-position detection switch is higher than the height of the second low-position detection switch, and the second high-position detection switch and the second low-position detection switch are both electrically connected to the controller. When the material on the first conveyor belt triggers the second high-position detection switch, the first conveyor belt runs, and when the material on the first conveyor belt does not trigger the second low-position detection switch, the first conveyor belt does not run.

[0017] In a possible implementation, the first high-position detection switch, the first low-position detection switch, the second high-position detection switch, and the second low-position detection switch are all through-beam photoelectric switches.

[0018] In a possible implementation, it further includes a rake roller, which is located above the second conveyor belt and is used to level the material on the second conveyor belt.

[0019] In a possible implementation, a material box is further included for storing materials, the first conveyor belt is located in the material box to convey the materials in the material box, and the second conveyor belt is at least partially located outside the material box.

[0020] According to the warehouse feeder provided in the embodiment of the present application, by detecting the height of the material, the start and stop of the first conveyor belt and the second conveyor belt are controlled according to the distribution of the material, so that the operation of the first conveyor belt and the second conveyor belt is more matched, and the material flow between the first conveyor belt and the second conveyor belt is smoother and more stable, thereby making the material supply from the second conveyor belt to other equipment smoother, more uniform and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a warehouse feeder provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0023] like Figure 1 As shown, an embodiment of the present application provides a warehouse feeder with a material level detection device, which is used for conveying materials, for example, it can be used for conveying tobacco in a cigarette factory. The warehouse feeder in the cigarette factory usually includes a cigarette box and a steep-angle lifting belt, the steep-angle lifting belt is located outside the cigarette box, and a horizontal conveyor belt is arranged in the cigarette box. The horizontal conveyor belt conveys the tobacco in the cigarette box to the steep-angle lifting belt, and then the tobacco is evenly conveyed to other equipment via the steep-angle lifting belt. In the past, when cigarette factories used warehouse feeders to convey tobacco, due to the difference in conveying efficiency between the horizontal conveyor belt and the steep-angle lifting belt, when conveying tobacco, tobacco might accumulate between the horizontal conveyor belt and the steep-angle lifting belt, or the horizontal conveyor belt might not supply enough to the steep-angle lifting belt, so the overall feeding stability, smoothness and uniformity are all insufficient. The warehouse feeder of the present application aims to improve the continuity, uniformity and smoothness of feeding.

[0024] The warehouse feeder comprises a first conveyor belt 100, a second conveyor belt 200, a first high-level detection switch 91, a first low-level detection switch 81 and a controller. The first conveyor belt 100 has a feeding end and a discharging end. The second conveyor belt 200 also has a feeding end and a discharging end. The discharging end of the first conveyor belt 100 feeds material to the feeding end of the second conveyor belt 200. Preferably, the discharging end of the first conveyor belt 100 is located above the feeding end of the second conveyor belt 200, and in the vertical direction, the partial projection of the discharging end of the first conveyor belt 100 overlaps with the partial projection of the feeding end of the second conveyor belt 200. The first high-level detection switch 91 is located at the first conveyor belt 100. The first low-position detection switch 81 is also located above the second conveyor belt 200 near the feed end, and the height of the first high-position detection switch 91 is higher than the height of the first low-position detection switch 81. The first high-position detection switch 91 and the first low-position detection switch 81 detect the material height near the feed end of the second conveyor belt 200 to determine whether there is enough material at the feed end of the second conveyor belt 200. The controller is electrically connected to the first conveyor belt 100, the controller is electrically connected to the second conveyor belt 200, the controller is electrically connected to the first high-position detection switch 91, and the controller is electrically connected to the first The low-level detection switch 81 is electrically connected. When the material at this location triggers the first high-level detection switch 91, it indicates that there is enough material at the feeding end of the second conveyor belt 200, and there is too much material. The second conveyor belt 200 is controlled to run by the controller, and the first conveyor belt 100 is stopped from running, and the first conveyor belt 100 is stopped from conveying materials to the second conveyor belt 200 to prevent material accumulation between the first conveyor belt 100 and the second conveyor belt 200. When the material at this location cannot trigger the first low-level detection switch 81, it indicates that there is insufficient material at the feeding end of the second conveyor belt 200. If the second conveyor belt 200 continues to run at this time, the second conveyor belt 200 will be stopped. The conveyor belt 200 cannot provide a uniform and continuous supply of materials to the outside. Therefore, at this time, the controller controls the second conveyor belt 200 to stop running, and controls the first conveyor belt 100 to run, so as to supply materials to the second conveyor belt 200. When the material at the feeding end of the second conveyor belt 200 triggers the first low-level detection switch 81, it indicates that there is sufficient material here. The second conveyor belt 200 is started by the controller, and materials are supplied to other equipment through the second conveyor belt 200. The setting height of the first high-level detection switch 91 and the setting height of the first low-level detection switch 81 can be adjusted and set according to production needs.

[0025] In this embodiment, the start and stop of the first conveyor belt 100 and the second conveyor belt 200 are controlled according to the height of the material at the feeding end of the second conveyor belt 200, so that there is sufficient material on the second conveyor belt 200 at all times, and it is also possible to avoid excessive material accumulation on the second conveyor belt 200, thereby realizing continuous, stable and uniform material supply to other equipment.

[0026] In actual operation, it is also found that when conveying materials with a certain fluffiness such as tobacco, ridges may appear on the surface of the material during the movement of the material, which may cause the local height of the material to be too high. When the local ridges trigger the first high-position detection switch 91, the actual material height on the second conveyor belt 200 is not enough to trigger the first high-position detection switch 91, so misjudgment may occur. For this reason, a material height detection switch 70 is provided. The material height detection switch 70 is located above the intersection of the first conveyor belt 100 and the second conveyor belt 200. The material height at the intersection of the first conveyor belt 100 and the second conveyor belt 200 is detected because the intersection can more truly reflect the actual height of the material due to the continuous transfer and movement of the material. The material height detection switch 70 is electrically connected to the controller. When the material on the second conveyor belt 200 triggers the first high-position detection switch 91, the material height on the second conveyor belt 200 is not enough to trigger the first high-position detection switch 91. 1, and the material height detection switch 70 monitors that the material height at the intersection of the first conveyor belt 100 and the second conveyor belt 200 is above the preset value, at this time, it indicates that the material height is indeed up to standard and is not a misjudgment caused by local ridging of the material, then the first conveyor belt 100 is controlled to stop and the second conveyor belt 200 keeps running. If, although the material on the second conveyor belt 200 triggers the first high-level detection switch 91, the material height detection switch 70 detects that the material height at the intersection of the first conveyor belt 100 and the second conveyor belt 200 is less than the preset value, it indicates that the material is not insufficient at this time, but a misjudgment caused by local ridging of the material, so the first conveyor belt 100 is controlled to keep running to supply material to the second conveyor belt 200 to ensure that sufficient material is maintained on the second conveyor belt 200. The preset value of the material height at the intersection of the first conveyor belt 100 and the second conveyor belt 200 can be set according to production requirements.

[0027] Therefore, under the action of the material height detection switch 70, the phenomenon of insufficient material on the second conveyor belt 200 due to misjudgment can be effectively avoided, ensuring that there are sufficient materials on the second conveyor belt 200, thereby improving the continuity and stability of material supply to other equipment. Preferably, the material height detection switch 70 is a grating, and the grating components are arranged on both sides of the intersection of the first conveyor belt 100 and the second conveyor belt 200.

[0028] In this embodiment, the first high-level detection switch 91 and the first low-level detection switch 81 are closer to the middle of the second conveyor belt 200 than the material height detection switch 70. Along the entire material travel path, the material height detection switch 70 is closer to the upstream, and the first high-level detection switch 91 and the first low-level detection switch 81 are closer to the downstream.

[0029] In this embodiment, a material box 300 is also included. The material box 300 is capable of storing materials. The first conveyor belt 100 is arranged in the material box 300, and the second conveyor belt 200 is at least partially outside the material box 300 to supply materials to other equipment. The first conveyor belt 100 is in the material box 300 to convey the materials in the material box 300 to the feeding end of the second conveyor belt 200. In addition, the upstream equipment needs to supply materials to the material box 300.

[0030] Preferably, the material conveying direction of the first conveyor belt 100 is horizontal, and the material conveying direction of the second conveyor belt 200 is inclined. The inclination direction of the second conveyor belt 200 is the inclination in the vertical plane, and the height of the discharge end of the second conveyor belt 200 is higher than the height of the feed end of the second conveyor belt 200 to realize the lifting and supply of materials. A rake roller 400 can also be provided. The rake roller 400 is located above the middle of the second conveyor belt 200 and downstream of the first high-position detection switch 91 and the first low-position detection switch 81. The rake roller 400 includes a rotating roller and rake nails circumferentially arranged on the outer periphery of the rotating roller. The axial direction of the rotating roller is perpendicular to the feeding direction of the second conveyor belt 200, and the axial direction of the rotating roller is parallel to the surface of the second conveyor belt 200. When the rotating roller rotates, the material on the second conveyor belt 200 is leveled by the rake nails, so that the material supply of the second conveyor belt 200 is more uniform.

[0031] More preferably, a second high-position detection switch 92 and a second low-position detection switch 82 are provided, and both the second high-position detection switch 92 and the second low-position detection switch 82 are located above the feed end of the first conveyor belt 100, and the height of the second high-position detection switch is higher than the height of the second low-position detection switch 82, the second high-position detection switch 92 is electrically connected to the controller, and the second low-position detection switch 82 is electrically connected to the controller. When the upstream equipment feeds material to the material box 300, the material falls at the feed end of the first conveyor belt 100. According to the aforementioned control logic, the material at this location must trigger the second high-position detection switch 92, and the first conveyor belt 100 will keep running. According to the aforementioned control logic, if the material on the first conveyor belt 100 cannot trigger the second low-position detection switch 82, the first conveyor belt 100 stops running to avoid idling of the first conveyor belt 100.

[0032] The height of the first high-position detection switch 91 and the first low-position detection switch 81 preferably refers to the distance from the surface of the second conveyor belt 200 , and the setting height of the second high-position detection switch 92 and the second low-position detection switch 82 preferably refers to the distance from the surface of the first conveyor belt 100 .

[0033] The first high-position detection switch 91, the first low-position detection switch 81, the second high-position detection switch 92 and the second low-position detection switch 82 are all through-beam photoelectric switches. For the first high-position detection switch 91 and the first low-position detection switch 81, baffles are arranged on both sides along the second conveyor belt 200, and the components of the through-beam photoelectric switches are respectively arranged on the baffles on both sides, and the rotating roller of the rake roller 400 is also arranged between the baffles on both sides. For the second high-position detection switch 92 and the second low-position detection switch 82, the components of the through-beam photoelectric switches are respectively arranged on the inner walls of the material box 300 on both sides of the first conveyor belt 100. For the grating between the first conveyor belt 100 and the second conveyor belt 200, a frame can be arranged, and the frame is used to stabilize the material box 300 and the second conveyor belt 200. The grating components are respectively arranged on the frames on both sides of the intersection of the first conveyor belt 100 and the second conveyor belt 200.

[0034] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0035] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0036] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0037] 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 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 including 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 sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A storage feeder with a material level detection device, characterized in that: include: A first conveyor belt having a feed end and a discharge end; A second conveyor belt having a feed end and a discharge end, wherein the discharge end of the first conveyor belt supplies material to the feed end of the second conveyor belt; A first high-position detection switch is located above the second conveyor belt near the feed end; A first low-position detection switch is located above the second conveyor belt near the feed end, and the height of the first low-position detection switch is lower than the height of the first high-position detection switch; A controller is electrically connected to the first conveyor belt, the second conveyor belt, the first high-position detection switch, and the first low-position detection switch respectively; Among them, when the material on the second conveyor belt triggers the first high-level detection switch, the first conveyor belt does not run and the second conveyor belt runs; when the material on the second conveyor belt does not trigger the first low-level detection switch, the first conveyor belt runs and the second conveyor belt does not run.

2. A storage feeder with a material level detection device according to claim 1, characterized in that: It also includes a material height detection switch, which is located above the intersection of the first conveyor belt and the second conveyor belt, and the material height detection switch is electrically connected to the controller. When the material on the second conveyor belt triggers the first high-level detection switch and the material height detection switch detects that the material height at the intersection of the first conveyor belt and the second conveyor belt is above a preset value, the first conveyor belt does not run and the second conveyor belt runs. When the material on the second conveyor belt triggers the first high-level detection switch and the material height detection switch detects that the material height at the intersection of the first conveyor belt and the second conveyor belt is less than a preset value, the first conveyor belt runs.

3. A storage feeder with a material level detection device according to claim 2, characterized in that: The material height detection switch is a grating.

4. The storage feeder with a material level detection device according to claim 2, characterized in that: The first high-position detection switch and the first low-position detection switch are both closer to the middle of the second conveyor belt than the material height detection switch.

5. The storage feeder with a material level detection device according to claim 1, characterized in that: The material conveying direction of the first conveyor belt is horizontal.

6. The storage feeder with a material level detection device according to claim 1, characterized in that: The material conveying direction of the second conveyor belt is an inclined direction in a vertical plane, and the height of the discharge end of the second conveyor belt is higher than the height of the feed end of the second conveyor belt.

7. The storage feeder with a material level detection device according to claim 1, characterized in that: It also includes a second high-position detection switch and a second low-position detection switch, which are located above the feed end of the first conveyor belt, and the height of the second high-position detection switch is higher than the height of the second low-position detection switch. The second high-position detection switch and the second low-position detection switch are both electrically connected to the controller. When the material on the first conveyor belt triggers the second high-position detection switch, the first conveyor belt runs, and when the material on the first conveyor belt does not trigger the second low-position detection switch, the first conveyor belt does not run.

8. The storage feeder with a material level detection device according to claim 7, characterized in that: The first high-position detection switch, the first low-position detection switch, the second high-position detection switch, and the second low-position detection switch are all through-beam photoelectric switches.

9. The storage feeder with a material level detection device according to claim 1, characterized in that: It also includes a rake roller, which is located above the second conveyor belt and is used for leveling the materials on the second conveyor belt.

10. The storage feeder with a material level detection device according to claim 1, characterized in that: It also includes a material box for storing materials, the first conveyor belt is located in the material box to convey the materials in the material box, and the second conveyor belt is at least partially outside the material box.

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