Continuous metering device for bran materials

Abstract

The utility model belongs to the field of weighing equipment, and particularly provides a bran type material continuous metering device which comprises a bearing machine body, a pressure sensor arranged between a metering hopper and the bearing machine body, a pressure relief arch breaker arranged at the lower end of the metering hopper, a pressure relief cover arranged at the upper end of an arch breaking shaft arranged in the metering hopper and a pressure relief device arranged at the lower end of the arch breaking shaft. The lower end of the arch breaking shaft is connected with a rotating ring through a connecting plate, the rotating ring is connected with an outer ring of a slewing bearing through a connecting frame, gear teeth are arranged on the outer ring of the slewing bearing, an inner ring of the slewing bearing is fixed to a fixing ring base on the outer side of a metering hopper, and a driving motor is fixed to the metering hopper. A driving gear meshed with gear teeth of the slewing bearing is arranged at the output end of the driving motor, the metering hopper is connected with the quantitative discharging device through a supporting frame, and a feeding port of the quantitative discharging device corresponds to the rotating ring. The device can prevent bran materials from being extruded into clusters to cause flowing difficulty, and continuous mass metering of bulk materials is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of weighing equipment, especially relates to a bran material continuous metering device. BACKGROUND

[0002] The bran material, such as rice hull, sawdust, chaff, wheat bran, straw and the like, is generally poor in flowability and easy to arch and ball, which causes continuous conveying difficulty and complex metering in automatic production. At present, in the production, manual operation or fuzzy metering is often used in the process link, which has a certain negative impact on industrialized large-scale production. Therefore, developing a special metering device for this kind of material, which is convenient to use and reliable in operation, to meet the needs of automatic continuous metering and batching in production, will have a broad market prospect. SUMMARY

[0003] The utility model provides a bran material continuous metering device, prevents the bran material extrusion and forms a group and causes flow difficulty, realizes the continuous quality metering of loose material.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a bran material continuous metering device, which comprises a bearing body, a metering hopper and a pressure sensor arranged between the bearing body and the metering hopper, a pressure relief arch breaker is arranged at the lower end of the metering hopper, the pressure relief arch breaker comprises an arch breaking shaft arranged in the metering hopper, a pressure relief cover is arranged at the upper end of the arch breaking shaft, the lower end of the arch breaking shaft is connected with a rotating ring through a connecting plate, the rotating ring is connected with the outer ring of a slewing bearing through a connecting frame, the outer ring of the slewing bearing is provided with a gear, the inner ring of the slewing bearing is fixed on a fixed ring seat outside the metering hopper, a driving motor is fixed on the metering hopper, the output end of the driving motor is provided with a driving gear meshing with the gear of the slewing bearing, the metering hopper is connected with a quantitative feeder through a support frame, and the feeding port of the quantitative feeder is arranged corresponding to the rotating ring.

[0005] In the preferred scheme, the inner wall of the upper end of the rotating ring is arranged on the outer wall of the discharge port at the lower end of the metering hopper, and the outer wall of the lower end of the rotating ring is arranged on the inner side of the feeding port of the quantitative feeder.

[0006] In the preferred scheme, the outer wall of the discharge port at the lower end of the metering hopper and the inner side of the feeding port of the quantitative feeder are both provided with a sealing ring.

[0007] In the preferred scheme, the quantitative feeder comprises a discharge cylinder, the discharge cylinder is provided with an open port at one end, a collecting cover is arranged at the position of the open port, a rotating shaft is arranged in the discharge cylinder, the end of the rotating shaft away from the collecting cover is rotatably installed on the discharge cylinder in a cantilever state through a bearing, the rotating shaft is driven by a driving motor, and a spiral blade is arranged on the rotating shaft.

[0008] In the preferred solution, the metering hopper, the pressure relief arch breaker and the quantitative discharger are provided in at least two groups, the carrying machine body is provided with a collecting hopper, and the lower end of the collecting cover is arranged in the collecting hopper.

[0009] In the preferred solution, the carrying machine body is provided with a feeding screw conveyor, and the discharge port of the feeding screw conveyor is arranged corresponding to the feeding port of the metering hopper.

[0010] In the preferred solution, the discharge port of the feeding screw conveyor is connected with the feeding port of the metering hopper through a flexible sealing ring.

[0011] In the preferred solution, the pressure relief cover is in a conical structure with a large lower end and a small upper end.

[0012] The bran material continuous metering device has the following beneficial effects:

[0013] 1. Due to the pressure relief arch breaker, the material on the lower side of the pressure relief cover is hardly extruded, and the material on the upper side and the lower side of the pressure relief cover is also difficult to form an arching phenomenon. Even if the arching phenomenon occurs, the rotation of the pressure relief cover and the arch breaking shaft can effectively break the arch.

[0014] 2. The multiple groups of metering hoppers are alternately operated to achieve the purposes of continuous metering and continuous and uniform conveying, thereby being beneficial to the normal operation of subsequent equipment.

[0015] 3. Since the quantitative discharger is a cantilever structure "O" type spiral conveying device, the material is not extruded, uniform discharging is achieved, and the collapse is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and examples:

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is the side view of the utility model;

[0019] Figure 3 It is the top view of the utility model;

[0020] Figure 4 It is the installation structure schematic view of the pressure relief arch breaker;

[0021] In the figure: carrying body 1, metering hopper 2, fixed ring seat 201, pressure sensor 3, pressure relief arch breaker 4, arch breaker shaft 401, pressure relief cover 402, connecting plate 403, rotating ring 404, connecting frame 405, slewing bearing 406, gear 407, drive motor 408, driving gear 409, support frame 5, quantitative discharger 6, collecting cover 601, discharge cylinder 602, rotating shaft 603, drive motor 604, spiral blade 605, collecting hopper 7, feed screw conveyor 8, discharge port 801, flexible sealing ring 9, sealing ring 10. DETAILED DESCRIPTION

[0022] Example 1:

[0023] like Figures 1-4 As shown, a continuous metering device for bran materials includes a carrier body 1, which is the basis of all functional units and is a stand formed by splicing profiles. A pressure sensor 3 is provided between the metering hopper 2 and the carrier body 1, that is, the metering hopper 2 and the carrier body 1 are connected via the pressure sensor 3. The lower end of the metering hopper 2 is provided with a pressure-relieving arch breaker 4, which includes an arch-breaking shaft 401 provided in the metering hopper 2, and a pressure-relieving cover 402 provided on the upper end of the arch-breaking shaft 401. The pressure-relieving cover 402 is a conical structure with a larger bottom and a smaller top. The lower end of the arch-breaking shaft 401 is connected to the rotating ring 404 through a connecting plate 403. The rotating ring 404 is concentrically arranged with the arch-breaking shaft 401. The rotating ring 404 is connected to the outer ring of the slewing support 406 through a connecting frame 405. The outer ring of the slewing support 406 is provided with gear teeth 407, and the inner ring of the slewing support 406 is fixed to the outside of the metering hopper 2 The driving motor 408 is fixed on the fixed ring seat 201, and the metering hopper 2 is fixed. The output end of the driving motor 408 is provided with a driving gear 409 meshing with the gear teeth 407 of the slewing bearing 406. The driving motor 408 drives the driving gear 409 to rotate, so that the outer ring of the slewing bearing 406 rotates, thereby driving the arch breaking shaft 401 to rotate, and the pressure relief cover 402 rotates to stir the material in the metering hopper 2 to prevent the material from accumulating and being squeezed into agglomerates, causing flow difficulties, improving the characteristic that bran materials are easily squeezed into agglomerates, thereby enhancing fluidity, achieving uniform flow, and accurate metering.

[0024] The metering hopper 2 is connected to the quantitative discharger 6 via a support frame 5. That is, the quantitative discharger 6 is suspended at the lower end of the metering hopper 2, and the feed port of the quantitative discharger 6 is arranged corresponding to the rotating ring 404. The pressure sensor 3 is used to measure the metering hopper 1, the quantitative discharger 6, the material disposed within the metering hopper 1 and the quantitative discharger 6, the pressure relief arch breaker 4 disposed on the metering hopper 1, and the support frame 5 as a whole, thereby achieving overall static metering.

[0025] The quantitative discharger 6 can be selected from an O-type screw conveyor, specifically, Figure 4As shown, the quantitative discharger 6 comprises a discharging barrel 602, which is provided with an open end and a collecting cover 601 at the open end position. A rotating shaft 603 is arranged in the discharging barrel 602, and the end of the rotating shaft 603 away from the collecting cover 601 is rotatably mounted on the discharging barrel 602 in a cantilever state by a bearing. The rotating shaft 603 is driven by a driving motor 604, and the rotating shaft 603 is provided with a spiral blade 605.

[0026] The quantitative discharger 6 is arranged to realize uniform material conveying and quantitative discharging. Since the rotating shaft 603 of the quantitative discharger 6 is in a cantilever state, i.e., a cantilever structure “O” type spiral conveying device, the material is not extruded, and uniform discharging and avoidance of collapse are achieved.

[0027] Preferably, as shown in the drawings, Figure 4 As shown, the upper end inner wall of the rotating ring 404 is arranged at the outer wall of the discharge port of the lower end of the metering hopper 2, and the lower end outer wall of the rotating ring 404 is arranged at the inner side of the feeding port of the quantitative discharger 6.

[0028] The rotating ring 404 is arranged concentrically with the discharge port of the lower end of the metering hopper 2 and the feeding port of the quantitative discharger 6.

[0029] The outer wall of the discharge port of the lower end of the metering hopper 2 and the inner side of the feeding port of the quantitative discharger 6 are both provided with a sealing ring 10. By arranging the sealing ring 10, the gap between the rotating ring 404 and the discharge port of the lower end of the metering hopper 2 and the feeding port of the quantitative discharger 6 is reduced, the material leakage is prevented, and the dust emission is reduced.

[0030] Embodiment 2:

[0031] Different from embodiment 1, the metering hopper 2, the pressure relief arch breaker 4 and the quantitative discharger 6 are all arranged in two groups, and two material conveying paths are arranged for alternating metering and conveying of the material.

[0032] The carrying fuselage 1 is provided with a collecting hopper 7, and the discharge port of the quantitative discharger 6 is provided with a collecting cover 601. The lower end of the collecting cover 601 is arranged in the collecting hopper 7, the material discharged from the quantitative discharger 6 is conveyed to the collecting hopper 7 through the collecting hopper 7, and one-point discharging is realized.

[0033] The carrying fuselage 1 is provided with a bidirectional feeding screw conveyor 8, which is switched by forward and reverse rotation to respectively feed two groups of collecting hoppers 7. The bidirectional feeding screw conveyor 8 is provided with discharge ports 801 at both ends, and the two discharge ports 801 are respectively arranged corresponding to the feeding ports of the two groups of metering hoppers 2.

[0034] The discharge port 801 of the feeding screw conveyor 8 is connected with the feeding port of the metering hopper 2 through a flexible sealing ring 9.

[0035] In operation, the material is conveyed by the feeding screw conveyor 8 to different directions and enters the corresponding metering hopper 2 according to the specified flow direction, at this time, the pressure relief arch breaker 4 and the quantitative discharger 6 installed at the lower part of the metering hopper 2 are in standby state, the pressure sensor 3 monitors the change of the material quality, when reaching the set value, the feeding screw conveyor 8 stops feeding to this path and switches to another path; at the same time, the pressure relief arch breaker 4 and the quantitative discharger 6 of this path work, the material is uniformly sent out, and the quality detection data is accurately controlled and output according to the data detected by the pressure sensor 3. Due to the action of the pressure relief arch breaker 4, the material on the lower side of the pressure relief cover 402 hardly forms extrusion, and the material on the upper and lower sides of the pressure relief cover 402 is also difficult to form arching phenomenon, even if the arching phenomenon occurs, the rotation of the pressure relief cover 402 and the arch breaking shaft 401 can effectively break the arch.

[0036] Therefore, the material entering the quantitative discharger 6 is loose, since the quantitative discharger 6 is a cantilever structure "O" type spiral conveying device, it does not form extrusion to the material, and uniform discharging and avoiding collapse can be achieved.

[0037] The two-way conveying path alternately works to achieve the purpose of continuous metering and continuous uniform conveying, which is beneficial to the normal operation of the subsequent equipment.

[0038] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The embodiments in the application and the features in the embodiments can be combined with each other as long as they do not conflict. The protection scope of the present application should be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features recited in the claims. That is, the equivalent replacement and improvement within this range are also within the protection scope of the present application.

Claims

1. A continuous bran material metering device, comprising a carrier body (1), a pressure sensor (3) arranged between a metering hopper (2) and the carrier body (1), characterized in that: The lower end of the metering hopper (2) is provided with a pressure relief arch breaker (4), the pressure relief arch breaker (4) comprises an arch breaker shaft (401) arranged in the metering hopper (2), the upper end of the arch breaker shaft (401) is provided with a pressure relief cover (402), the lower end of the arch breaker shaft (401) is connected to the rotating ring (404) through a connecting plate (403), the rotating ring (404) is connected to the outer ring of the slewing support (406) through a connecting frame (405), and the outer ring of the slewing support (406) is provided with gear teeth (401). 07), the inner ring of the slewing bearing (406) is fixed on the fixed ring seat (201) outside the metering hopper (2), the driving motor (408) is fixed on the metering hopper (2), and the output end of the driving motor (408) is provided with a driving gear (409) meshing with the gear teeth (407) of the slewing bearing (406). The metering hopper (2) is connected to the quantitative discharger (6) through the support frame (5), and the feed port of the quantitative discharger (6) is set corresponding to the rotating ring (404).

2. A continuous bran material metering device according to claim 1, characterized in that: The inner wall of the upper end of the rotating ring (404) is arranged on the outer wall of the discharge port at the lower end of the metering hopper (2), and the outer wall of the lower end of the rotating ring (404) is arranged on the inner side of the feed port of the quantitative discharger (6).

3. A bran material continuous metering device according to claim 2, characterized in that: A sealing ring (10) is provided on the outer wall of the discharge port at the lower end of the metering hopper (2) and the inner side of the feed port of the quantitative discharger (6).

4. A continuous bran material metering device according to claim 1, characterized in that: The quantitative discharger (6) comprises a discharge cylinder (602), one end of the discharge cylinder (602) is provided with an open port, a collection cover (601) is arranged at the position of the open port, a rotating shaft (603) is arranged in the discharge cylinder (602), one end of the rotating shaft (603) away from the collection cover (601) is rotatably mounted on the discharge cylinder (602) via a bearing in a cantilevered state, the rotating shaft (603) is driven by a drive motor (604), and a spiral blade (605) is arranged on the rotating shaft (603).

5. A bran material continuous metering device according to claim 4, characterized in that: The metering hopper (2), the pressure relief arch breaker (4), and the quantitative discharger (6) are each provided in at least two groups. A collecting hopper (7) is provided on the supporting body (1), and the lower end of the collecting cover (601) is provided in the collecting hopper (7).

6. A bran material continuous metering device according to claim 5, characterized in that: A feeding screw conveyor (8) is provided on the carrier body (1), and a discharge port (801) of the feeding screw conveyor (8) is arranged corresponding to the feeding port of the metering hopper (2).

7. A bran material continuous metering device according to claim 6, characterized in that: The discharge port (801) of the feeding screw conveyor (8) is connected to the feeding port of the metering hopper (2) via a flexible sealing ring (9).

8. The continuous metering device for bran materials according to claim 1, characterized in that: The pressure relief cover (402) is a conical structure that is larger at the bottom and smaller at the top.

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