Material feeding device and its working method

Abstract

The present invention belongs to the technical field of material conveying, and particularly relates to a material feeding device and its working method; the present invention provides a material feeding device, including: a feeding hopper; a conveying cylinder, the two ends of which are respectively fixed to the lower end of the feeding hopper and the upper end of the machine body; a conveying component, which is rotatably arranged in the feeding hopper; an adjusting component, which is arranged to be lifted and lowered in the conveying cylinder and is linked with the conveying component; wherein, the blades of the conveying component rotate circumferentially to convey the materials in the feeding hopper to the machine body; the circumferential rotation of the blades is adapted to intermittently push the adjusting component downward to adjust the flow rate of the materials into the machine body. Through the cooperation of the adjusting component and the conveying component, the feeding speed of the materials in the conveying cylinder is adjusted, and the blockage of the materials in the conveying cylinder is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of material conveying, specifically relates to the technical field related to a rotary separator, and particularly relates to a material feeding device and its working method. Background Art

[0002] A screw extruder relies on the pressure and shear force generated by the rotation of the screw, enabling the material to be fully plasticized and evenly mixed, and formed through a die.

[0003] Granular materials are conveyed into the hopper. Since the materials are mostly poured into the hopper at one time, bridging phenomena will occur to the materials in the hopper, resulting in the accumulation of materials in the hopper and unable to be normally fed. The traditional method is to set a stirring paddle in the hopper or manually dredge it to avoid the accumulation of materials during the feeding process.

[0004] However, if the materials in the hopper are conveyed into the extruder too fast, it will cause the accumulation of materials in the extruder, resulting in poor heating of the materials and incomplete melting. If the materials are conveyed into the extruder too slowly, there will not be enough materials entering the extruder per unit time, resulting in poor forming effect of the extruded materials.

[0005] Therefore, how to solve the problem that the materials in the hopper are conveyed into the extruder too fast or too slow, affecting the forming effect of the materials, is a technical problem that urgently needs to be solved in this field.

[0006] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, the above description is not considered as information of the prior art. Summary of the Invention

[0007] The embodiments of the present disclosure at least provide a material feeding device and its working method.

[0008] In a first aspect, the embodiments of the present disclosure provide a material feeding device, including:

[0009] A hopper, which is vertically arranged above the machine body;

[0010] A conveying cylinder, whose two ends are respectively fixed to the lower end of the hopper and the upper end of the machine body;

[0011] A conveying component, which is rotatably arranged in the hopper;

[0012] An adjusting component, which is arranged in the conveying cylinder in a lifting manner and is linked with the conveying component;

[0013] Wherein, the blades of the conveying component rotate circumferentially to convey the materials in the hopper to the machine body;

[0014] The circumferential rotation of the blade is adapted to intermittently push the adjustment assembly downward to adjust the flow rate of the material into the machine body.

[0015] In an alternative embodiment, the conveying assembly includes: a driving motor, which is horizontally arranged at the upper end of the hopper;

[0016] a transmission shaft, which is vertically arranged in the hopper and is in transmission connection with the driving motor;

[0017] a blade, which is fixed on the outer wall of the transmission shaft.

[0018] In an alternative embodiment, the adjustment assembly includes: an inner sleeve, which is arranged to be lifted and lowered in the conveying cylinder;

[0019] a filter plate, which is horizontally fixed at the bottom of the inner sleeve;

[0020] an adjustment column, which is vertically fixed on the filter plate and is linked with the transmission shaft;

[0021] Wherein, the transmission shaft rotates circumferentially and is adapted to push the adjustment column to move downward intermittently.

[0022] In an alternative embodiment, a fixed disk is fixed at the bottom of the transmission shaft, and a convex block is eccentrically arranged on the bottom wall of the fixed disk, and the convex block is hemispherical.

[0023] In an alternative embodiment, a plurality of guiding blocks are arranged at equal intervals along the circumferential direction at the upper end of the adjustment column, a gap is provided between adjacent two guiding blocks, and the horizontal height of the guiding block gradually increases from one end to the other end;

[0024] Wherein, when the fixed disk rotates counterclockwise, the convex block is adapted to push the guiding block to make the inner sleeve gradually move downward.

[0025] In an alternative embodiment, a sealing ring is fixed on the outer wall at the upper end of the inner sleeve, and the sealing ring is in sliding seal with the inner wall of the conveying cylinder;

[0026] a limiting ring is fixed on the inner wall of the conveying cylinder, the limiting ring is arranged below the sealing ring, and the limiting ring is in sliding seal with the outer wall of the inner sleeve.

[0027] In an alternative embodiment, a plurality of adjustment grooves are circumferentially formed on the outer wall of the inner sleeve, and an adjustment block is hinged in each adjustment groove, and the adjustment block is fan-shaped;

[0028] Wherein, when the inner sleeve moves downward, the adjustment block flips towards the adjustment column with the hinge point as the axis to adjust the feeding speed of the material.

[0029] In an alternative embodiment, a compression spring is sleeved on the outer wall of the inner sleeve, and two ends of the compression spring are respectively fixed on the sealing ring and the limiting ring, and the compression spring is adapted to push the sealing ring to move upward.

[0030] In an alternative embodiment, a cavity is formed between the limiting ring and the sealing ring;

[0031] A water inlet pipe and a water outlet pipe are arranged on the outer wall of the inner sleeve, and both the water inlet pipe and the water outlet pipe are communicated with the cavity;

[0032] Wherein, when the sealing ring moves downward, the water in the cavity is discharged from the water outlet pipe to the conveying cylinder.

[0033] In an alternative embodiment, a receiving ring groove is axially formed on the inner wall of the conveying cylinder, and the receiving ring groove is arranged below the limiting ring;

[0034] The adjusting block is adapted to be inserted into the receiving ring groove.

[0035] In an alternative embodiment, the outer wall of the lower end of the inner sleeve is attached to the inner wall of the conveying cylinder, wherein when the inner sleeve moves downward, it is adapted to scrape the residual material on the inner wall of the conveying cylinder.

[0036] In an alternative embodiment, the circumferential rotation of the paddle is adapted to intermittently push the adjusting assembly to move downward, and the moving frequency of the adjusting assembly moving downward has a linear relationship with the paddle, that is, the faster the rotation speed of the paddle, the greater the moving frequency of the adjusting assembly.

[0037] In a second aspect, the embodiments of the present disclosure further provide a working method of a blanking device, including: when granular materials are conveyed into the blanking hopper, the paddle of the conveying assembly rotates circumferentially to convey the materials towards the machine body;

[0038] The circumferential rotation of the paddle is adapted to intermittently push the adjusting assembly to move downward to adjust the flow rate of the materials into the machine body;

[0039] If the materials are blocked in the inner sleeve, the inner sleeve is pushed to move downward, and the adjusting block flips towards the adjusting column with the hinge point as the axis to push the materials in the inner sleeve to flow downward;

[0040] If the weight of the materials in the blanking hopper exceeds a preset weight, the materials push the inner sleeve to move downward, and the adjusting block flips towards the adjusting column with the hinge point as the axis to adjust the blanking speed of the materials.

[0041] The beneficial effects of the present invention are as follows. For a material feeding device of the present invention, through the arrangement of the adjustment component, the conveying component drives the adjustment component to move downward intermittently, which can avoid the blockage of materials in the conveying cylinder. When the weight of the materials in the hopper exceeds the preset weight, the materials push the inner sleeve downward, and the adjustment block flips towards the adjustment column with the hinge point as the axis to adjust the feeding speed of the materials, avoiding the situation where the feeding speed of the materials in the hopper is too fast due to excessive weight of the materials; the intermittent downward movement of the adjustment component enables the feeding speed of the materials in the hopper to always remain within a reasonable flow rate range. At the same time, the intermittent downward movement of the inner sleeve can realize the automatic replacement of cooling water, avoiding the transfer of the relatively high temperature inside the machine body to the hopper.

[0042] Other features and advantages of the present invention will be described in the following specification, and part of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification, claims, and drawings.

[0043] To make the above objectives, features, and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby given, and detailed descriptions are made in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 A perspective view of a material feeding device provided by an embodiment of the present disclosure;

[0046] Figure 2 A perspective view of the hopper and the conveying component provided by an embodiment of the present disclosure;

[0047] Figure 3 A perspective view of the conveying component provided by an embodiment of the present disclosure;

[0048] Figure 4 A sectional perspective view of the adjustment component in the hopper provided by an embodiment of the present disclosure;

[0049] Figure 5 An upper-end perspective view of the adjustment column provided by an embodiment of the present disclosure;

[0050] Figure 6 A schematic diagram of the state where the inner sleeve moves downward provided by an embodiment of the present disclosure.

[0051] In the figure:

[0052] 1. Machine body;

[0053] 2. Feeding hopper;

[0054] 3. Conveying cylinder; 31. Limiting ring; 32. Accommodating ring groove;

[0055] 4. Conveying assembly; 41. Driving motor; 42. Transmission shaft; 43. Paddle; 44. Fixed disk; 45. Protrusion;

[0056] 5. Adjusting assembly; 51. Inner sleeve; 52. Filter plate; 53. Adjusting column; 54. Guide block; 55. Sealing ring; 56. Adjusting block; 57. Compression spring. Specific embodiments

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0058] The terms used herein are only for describing specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an", and "the" may also be intended to include the plural forms, unless clearly stated otherwise herein. The terms "comprising", "including", and "having" are inclusive and thus specify the presence of the specified features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described herein should not be construed as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as the order of execution. Additional or alternative steps may be employed.

[0059] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc., generally refer to the fact that a particular feature, structure, or characteristic after such a phrase can be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "as an example, instance, or illustration. Any embodiment, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects, or designs. Instead, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a concrete manner.

[0060] It has been found through research that the disadvantages of the prior art are as follows: Whether the material in the hopper is conveyed into the extruder too fast or too slow will affect the material forming effect of the extruder; When too much material is stacked in the hopper and its weight is too large, the conveying speed of the material into the extruder is too fast, and too fast a speed will cause too much material to enter the extruder, resulting in poor heat reception of the material in the extruder and incomplete melting of the material. When the material in the hopper is blocked, the conveying speed of the material will be too slow, resulting in insufficient material entering the extruder per unit time and poor forming effect of the extruded material. Therefore, how to solve the problem that the material in the hopper is conveyed into the extruder too fast or too slow is a technical problem urgently to be solved in the art.

[0061] All the defects existing in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article for the above problems should be the contributions made by the inventors to the present disclosure during the process of the present disclosure.

[0062] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0063] As Figures 1 to 6As shown, some embodiments provide a material feeding device, including: a feeding hopper 2, which is vertically arranged above the machine body 1; in this embodiment, the machine body 1 is an extruder and is horizontally arranged. A sealing plate is provided at the upper end of the feeding hopper 2, and an inlet is opened on the sealing plate. The driving motor 41 is horizontally fixed on the sealing plate. A conveying cylinder 3, whose two ends are respectively fixed at the lower end of the feeding hopper 2 and the upper end of the machine body 1; the conveying cylinder 3 is adapted to connect the feeding hopper 2 and the machine body 1. A conveying component 4, which is rotatably arranged in the feeding hopper 2; the conveying component 4 is adapted to stir the materials in the feeding hopper 2 to prevent the granular materials from piling up in the feeding hopper 2 and causing bridging. An adjusting component 5, which is arranged to move up and down in the conveying cylinder 3 and is linked with the conveying component 4; wherein, the blades 43 of the conveying component 4 rotate circumferentially to convey the materials in the feeding hopper 2 to the machine body 1; the circumferential rotation of the blades 43 is adapted to intermittently push the adjusting component 5 to move downward to adjust the flow rate of the materials into the machine body 1. The circumferential rotation of the blades is adapted to intermittently push the adjusting component to move downward, and the frequency of the downward movement of the adjusting component has a linear relationship with the rotation speed of the blades, that is, the faster the rotation speed of the blades, the greater the movement frequency of the adjusting component.

[0064] Through the setting of the adjusting component 5, the conveying component 4 drives the adjusting component 5 to move downward intermittently, which can avoid the blockage of materials in the conveying cylinder 3. The intermittent downward movement of the inner sleeve 51 can realize the automatic replacement of cooling water and avoid the transfer of the relatively high temperature in the machine body 1 to the feeding hopper 2. When the weight of the materials in the feeding hopper 2 exceeds the preset weight, the materials push the inner sleeve 51 to move downward, and the adjusting block 56 flips in the direction of the adjusting column 53 with the hinge point as the axis to adjust the feeding speed of the materials; this avoids the situation where the feeding speed of the materials in the feeding hopper 2 becomes too fast due to excessive weight of the materials in the feeding hopper 2, and enables the feeding speed of the materials in the feeding hopper 2 to always be kept within a reasonable flow rate range.

[0065] Refer to the appendix Figure 3 As shown in the figure, the conveying component 4 includes: a driving motor 41, which is horizontally arranged at the upper end of the feeding hopper 2; a transmission shaft 42, which is vertically arranged in the feeding hopper 2 and is in transmission connection with the driving motor 41; blades 43, which are fixed on the outer wall of the transmission shaft 42. The driving motor 41 is adapted to drive the blades 43 to rotate circumferentially, and the rotation of the blades 43 can stir the materials in the feeding hopper 2 to prevent the materials from blocking the feeding port at the lower end of the feeding hopper 2.

[0066] Refer to the appendix Figure 4, the adjusting assembly 5 includes: an inner sleeve 51 which is arranged to be lifted and lowered in the conveying cylinder 3; a filter plate 52 which is horizontally fixed at the bottom of the inner sleeve 51; a plurality of filter holes are formed in the filter plate 52, and the filter holes are adapted to filter and intercept large-particle materials so as to prevent the large-particle materials from entering the machine body 1. An adjusting column 53 which is vertically fixed on the filter plate 52 and is linked with the transmission shaft 42; the adjusting column 53 is arranged directly below the transmission shaft 42, and when the adjusting column 53 is pushed by the convex block to move downward, the inner sleeve 51 is driven to move downward synchronously. Among them, the transmission shaft 42 rotates circumferentially and is adapted to push the adjusting column 53 to move downward intermittently. A fixed disk 44 is fixed at the bottom of the transmission shaft 42, and the diameter of the fixed disk 44 is not less than the diameter of the adjusting column 53; a convex block 45 is eccentrically arranged on the bottom wall of the fixed disk 44, and the convex block 45 is hemispherical.

[0067] Refer to the appendix Figure 5 , a plurality of guiding blocks 54 are arranged at equal intervals along the circumferential direction at the upper end of the adjusting column 53, a gap is arranged between two adjacent guiding blocks 54, and the outer diameter of the convex block 45 is smaller than the distance between two adjacent guiding blocks 54. The horizontal height of the guiding block 54 gradually increases from one end to the other end; among them, when the fixed disk 44 rotates counterclockwise, the convex block 45 is adapted to push against the guiding block 54 so that the adjusting column 53 gradually moves downward. The transmission shaft 42 drives the convex block 45 to rotate, and the convex block 45 abuts against each guiding block 54 in turn. When the convex block 45 initially abuts against the guiding block 54, the adjusting column 53 is pushed to move vertically downward. As the fixed disk 44 continues to rotate, the convex block 45 pushes the adjusting column 53 to continue to move downward until the convex block 45 disengages from the guiding block 54. At this time, the inner sleeve 51 moves upward to reset under the elastic force of the compression spring 57. The convex block 45 abuts against and then disengages from the guiding block 54, and the convex block 45 is adapted to push the inner sleeve 51 to move downward intermittently; the inner sleeve 51 reciprocates up and down in the conveying cylinder 3; when the inner sleeve 51 moves downward, the adjusting block 56 is pushed and squeezed to turn inward; when the inner sleeve 51 moves upward, the adjusting block 56 is pushed by the torsion spring to turn outward. It can not only prevent the material from blocking the inner sleeve 51, but also effectively control the discharging speed of the material. Avoid its discharging speed being too fast or too slow.

[0068] Refer to the appendix Figure 4 , a sealing ring 55 is fixed on the outer wall of the upper end of the inner sleeve 51, and the sealing ring 55 is slidably sealed with the inner wall of the conveying cylinder 3; a limiting ring 31 is fixed on the inner wall of the conveying cylinder 3, the limiting ring 31 is arranged below the sealing ring 55, and the limiting ring 31 is slidably sealed with the outer wall of the inner sleeve 51. A cavity is formed between the limiting ring 31, the sealing ring 55 and the outer wall of the inner sleeve 51. The outer wall of the sealing ring 55 abuts against and seals with the inner wall of the conveying cylinder 3; the inner wall of the limiting ring 31 abuts against and seals with the outer wall of the inner sleeve 51; the water in the cavity will not flow into the conveying cylinder 3.

[0069] Reference appendix Figure 4 , the outer wall of the inner sleeve 51 is circumferentially provided with a plurality of adjustment grooves, and each adjustment groove is hinged with an adjustment block 56. A torsion spring is arranged at the hinge shaft between the adjustment block 56 and the adjustment groove, and the torsion spring is adapted to push the adjustment block 56 to turn it outwards. When the inner sleeve 51 moves downwards, the adjustment block 56 is squeezed by the side wall of the receiving annular groove 32 to turn inwards; when the inner sleeve 51 moves upwards, the torsion spring pushes the adjustment block 56 to turn it into the receiving annular groove 32. The adjustment block 56 is fan-shaped; the adjustment groove is arranged below the cavity, and its horizontal height will not exceed the horizontal height of the limit ring 31 when it moves upwards. Among them, when the inner sleeve 51 moves downwards, the adjustment block 56 turns towards the adjustment column 53 with the hinge point as the axis to adjust the feeding speed of the material.

[0070] Reference appendix Figure 6 , in order to realize the upward reset movement of the inner sleeve 51, a compression spring 57 is sleeved on the outer wall of the inner sleeve 51. The two ends of the compression spring 57 are respectively fixed on the sealing ring 55 and the limit ring 31, and the compression spring 57 is adapted to push the sealing ring 55 to move upwards. When the convex block 45 is located in the gap between the two guiding blocks 54, the compression spring 57 pushes the sealing ring 55 to enable the inner sleeve 51 to move upwards for reset.

[0071] Preferably, a water inlet pipe and a water outlet pipe are arranged on the outer wall of the inner sleeve 51, and both the water inlet pipe and the water outlet pipe are communicated with the cavity; among them, when the sealing ring 55 moves downwards, the water in the cavity is discharged from the water outlet pipe to the conveying cylinder 3. The water outlet pipe is arranged at the lower part of the cavity, and the water inlet pipe is arranged in the middle of the cavity. When the sealing ring 55 moves downwards to the maximum stroke, its horizontal height is above the water outlet pipe.

[0072] Reference appendix Figure 4 , in order to facilitate the turning of the adjustment block 56, a receiving annular groove 32 is axially opened on the inner wall of the conveying cylinder 3, and the receiving annular groove 32 is arranged below the limit ring 31; when the adjustment block 56 turns outwards with the hinge point as the axis, the adjustment block 56 is adapted to be inserted into the receiving annular groove 32. At this time, the arc wall of the adjustment block 56 abuts against the bottom wall of the limit ring 31, and the side wall of the adjustment block 56 abuts against the bottom wall of the receiving annular groove 32 to prevent the inner sleeve 51 from moving upwards continuously.

[0073] Furthermore, the outer wall of the lower end of the inner sleeve 51 is attached to the inner wall of the conveying cylinder 3, and among them, when the inner sleeve 51 moves downwards, it is adapted to scrape the residual material on the inner wall of the conveying cylinder 3.

[0074] The working principle is as follows:

[0075] The transmission shaft 42 drives the fixed disk 44 to rotate circumferentially. The convex block 45 abuts against each guiding block 54 in sequence. When the convex block 45 initially abuts against the guiding block 54, it is adapted to push the adjusting column 53 downward. As the fixed disk 44 rotates circumferentially, the convex block 45 continuously pushes the guiding block 54 downward until the convex block 45 separates from the guiding block 54. The adjusting column 53 drives the inner sleeve 51 to move downward synchronously. When the inner sleeve 51 moves downward, the adjusting block 56 flips towards the adjusting column 53 with the hinge point as the axis. When the adjusting block 56 flips inward, it can squeeze the material inside the inner sleeve 51, causing it to move into the machine body 1. During the process of the adjusting block 56 flipping inward, squeezing the material speeds up the flow rate of the material into the machine body 1; it avoids the situation of material blockage inside the inner sleeve 51.

[0076] When the convex block 45 rotates to the gap between the two guiding blocks 54, at this time, the compression spring 57 pushes the sealing ring 55, so that the inner sleeve 51 moves upward. When the inner sleeve 51 moves upward, the adjusting block 56 flips outward with the hinge point as the axis until the adjusting block 56 is limited by the bottom wall of the limiting ring 31.

[0077] When the weight of the material accumulated in the hopper 2 exceeds the preset weight, the material pushes the inner sleeve 51 downward, so that the guiding block 54 moves away from the convex block 45. At this time, when the fixed disk 44 rotates circumferentially, the convex block 45 cannot abut against the guiding block 54. The inner sleeve 51 moves downward, so that the flipping amplitude of each adjusting block 56 inward exceeds the normal amplitude. The weight of the material in the hopper 2 is greater than the elastic force of the return spring 57, and the inner sleeve 51 cannot move upward for reset. Each adjusting block 56 flips inward synchronously, so that the inner diameter of the inner sleeve 51 becomes smaller, and the flow rate of the material in the hopper 2 into the inner sleeve 51 is blocked by the adjusting block 56, and its flow rate will decrease, avoiding the situation of too fast material feeding speed caused by excessive accumulation of material in the hopper 2.

[0078] Some embodiments provide a working method of a feeding device, characterized in that,

[0079] When the granular material is conveyed into the hopper 2, the paddle 43 of the conveying assembly 4 rotates circumferentially to convey the material towards the machine body 1;

[0080] The circumferential rotation of the paddle 43 is adapted to intermittently push the adjusting assembly 5 downward to adjust the flow rate of the material into the machine body 1;

[0081] If the material is blocked inside the inner sleeve 51, the inner sleeve 51 is pushed downward, and the adjusting block 56 flips towards the adjusting column 53 with the hinge point as the axis to push the material inside the inner sleeve 51 to flow downward;

[0082] When the weight of the material in the blanking hopper 2 exceeds the preset weight, the material pushes the inner sleeve 51 downward, and the adjusting block 56 flips in the direction of the adjusting column 53 with the hinge point as the axis to adjust the blanking speed of the material.

[0083] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0084] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless explicitly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0085] Taking the above ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A material feeding device, characterized in that, Comprising: A blanking hopper (2); A conveying cylinder (3) whose two ends are respectively fixed to the lower end of the blanking hopper (2) and the upper end of the machine body (1); A conveying assembly (4) rotatably arranged inside the blanking hopper (2); An adjusting assembly (5) vertically arranged inside the conveying cylinder (3) and linked with the conveying assembly (4); Wherein, the blades (43) of the conveying assembly (4) rotate circumferentially to convey the materials in the blanking hopper (2) towards the machine body (1); The circumferential rotation of the blades (43) is adapted to intermittently push the adjusting assembly (5) downward to adjust the flow rate of the materials into the machine body (1); The conveying assembly (4) includes: A driving motor (41) horizontally arranged at the upper end of the blanking hopper (2); A transmission shaft (42) vertically arranged inside the blanking hopper (2) and drivingly connected with the driving motor (41); Blades (43) fixed to the outer wall of the transmission shaft (42); The adjusting assembly (5) includes: An inner sleeve (51) vertically arranged inside the conveying cylinder (3); A filter plate (52) horizontally fixed to the bottom of the inner sleeve (51); An adjusting column (53) vertically fixed to the filter plate (52) and linked with the transmission shaft (42); Wherein, the transmission shaft (42) rotates circumferentially and is adapted to push the adjusting column (53) intermittently downward; A fixed disk (44) is fixed to the bottom of the transmission shaft (42), and a convex block (45) is eccentrically arranged on the bottom wall of the fixed disk (44), and the convex block (45) is hemispherical; A plurality of guiding blocks (54) are arranged at equal intervals along the circumferential direction at the upper end of the adjusting column (53), there is a gap between adjacent two guiding blocks (54), and the horizontal height of the guiding blocks (54) gradually increases from one end to the other end; Wherein, when the fixed disk (44) rotates counterclockwise, the convex block (45) is adapted to push the guiding block (54) to make the inner sleeve (51) gradually move downward; A sealing ring (55) is fixed to the outer wall of the upper end of the inner sleeve (51), and the sealing ring (55) is slidably sealed with the inner wall of the conveying cylinder (3); A limiting ring (31) is fixed to the inner wall of the conveying cylinder (3), the limiting ring (31) is arranged below the sealing ring (55), and the limiting ring (31) is slidably sealed with the outer wall of the inner sleeve (51); A plurality of adjusting grooves are circumferentially formed on the outer wall of the inner sleeve (51), and an adjusting block (56) is hinged in each adjusting groove, and the adjusting block (56) is fan-shaped; ​ ​ ​ 2. The material feeding device according to claim 1, wherein a cavity is formed between the limiting ring (31) and the sealing ring (55); a water inlet pipe and a water outlet pipe are arranged on the outer wall of the inner sleeve (51), and both the water inlet pipe and the water outlet pipe communicate with the cavity; wherein, when the sealing ring (55) moves downward, the water in the cavity is discharged from the water outlet pipe into the conveying cylinder (3); a receiving ring groove (32) is axially formed on the inner wall of the conveying cylinder (3), and the receiving ring groove (32) is arranged below the limiting ring (31); the adjusting block (56) is adapted to be inserted into the receiving ring groove (32).

3. The material feeding device according to claim 1, wherein the paddle (43) rotates circumferentially to intermittently push the adjusting assembly (5) downward, and the frequency of the downward movement of the adjusting assembly (5) has a linear relationship with the rotation speed of the paddle (43), that is, the faster the rotation speed of the paddle (43), the greater the movement frequency of the adjusting assembly (5).

4. A working method of a blanking device, characterized in that, When using the material feeding device according to any one of claims 1-3, wherein when granular materials are conveyed into the feeding hopper (2), the paddle (43) of the conveying assembly (4) rotates circumferentially to convey the materials towards the machine body (1); the paddle (43) rotates circumferentially to intermittently push the adjusting assembly (5) downward to adjust the flow rate of the materials into the machine body (1); if the materials are blocked in the inner sleeve (51), the inner sleeve (51) is pushed downward, and the adjusting block (56) flips towards the adjusting column (53) with the hinge point as the axis to push the materials in the inner sleeve (51) to flow downward; if the weight of the materials in the feeding hopper (2) exceeds a preset weight, the materials push the inner sleeve (51) downward, and the adjusting block (56) flips towards the adjusting column (53) with the hinge point as the axis to adjust the feeding speed of the materials.

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