CN111907745A

CN111907745A - Conveying device

Info

Publication number: CN111907745A
Application number: CN202010924209.2A
Authority: CN
Inventors: 王春洋
Original assignee: Zhengzhou Sanhua Technology and Industry Co Ltd
Current assignee: Zhengzhou Sanhua Technology and Industry Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-11-10
Anticipated expiration: 2040-09-04
Also published as: CN111907745B

Abstract

The present invention provides a conveying device, comprising: the material box is provided with a material cavity, the material cavity comprises a main material storage area, a secondary material storage area and a blanking area which are sequentially arranged, the main material storage area is provided with a feeding hole, and the blanking area is provided with a discharging hole; the separation subassembly, but axial displacement rotationally sets up in main storage area and inferior storage area, and the separation subassembly has the link and separates the end, and the separation end of separating the subassembly is located inferior storage area, is provided with first unloading screw thread on the outer wall of the separation end of separating the subassembly, the outer wall of first unloading screw thread and the inner wall clearance fit of inferior storage area. Through the technical scheme that this application provided, can solve the problem that conveyor among the prior art can't satisfy user demand.

Description

Conveying device

Technical Field

The invention relates to the technical field of powder quantitative blanking apparatuses, in particular to a conveying device.

Background

The screw conveying mechanism is widely applied to the field of packaging and metering machinery as an important powder conveying mechanism. Screw conveying mechanism is in packing measurement and material transport field, the form of placing of hob is mostly slope form and level form among the screw conveying mechanism, be used for conveying material and rough volume measurement, there is the form of placing of hob to set vertical form among some screw conveying mechanism, when the hob sets up like this, mainly be the dead weight in order to utilize the material, make the unloading more smooth, when utilizing this kind of hob to set up the form, in order to in time block the whereabouts of material, improve the accuracy of unloading, some even need set up closing mechanism on the feed opening of equipment, so that timely termination unloading process. Because the screw rod transfer process is a form of transfer that controls the volume of material. However, it is known that the weight of the granules or powders in a certain volume varies depending on the state thereof, and that the weight of the granules or powders per unit volume increases due to the long storage time. As another example, powder materials have different weights per unit volume due to different extrusion. This is because there are unfilled spaces between the particles of the granules or powders, which vary with the force conditions in which the different granules or powders are subjected. Therefore, if a weighing mode is not used, and the volume of the granular materials and the powder materials is controlled by a common screw pump to realize certain accurate weight blanking, the accurate weight blanking is not possible. In addition, due to the comprehensive influence of various factors in the equipment, a certain error exists between the volume transmission and the final blanking quality result, and the error range is larger. Some screw pumps are equipped with corresponding material position sensors, material transport devices, such as CN 201420815123.6. However, this adds cost and complexity to the manufacture of screw pumps and in practice this approach does not provide good weight consistency control of the feed for poorly flowing powders. Therefore, no matter how the screw rods are arranged, for powder or granular materials of which the feeding amount is controlled to meet a certain weight precision requirement, a plurality of screw pump devices are provided with weight sensors or scales to measure the weight of the materials to obtain the feeding amount meeting the weight precision requirement.

In addition, when the device is provided with the weight sensor and the scale, the structure of the whole device becomes complex, the manufacturing cost is greatly improved, and particularly in industries with higher blanking precision, in the blanking process of some granules or powder materials, such as the blanking process of automobile paint color master batch, the quality of finished paint is unstable due to errors in a certain range, so that the precision requirement of the scale used in the fields is higher, and the equipment cost is also greatly improved. The above problems also exist in the process of blanking granular materials and powders in other industries, such as granular materials for coatings, color matching toners for coatings, and seasonings applied in automatic cooking machines, such as salt, chicken essence, starch, etc. The coating color powder, starch and granular material have different materials, different application occasions, different particle sizes and different taste blending requirements, and have corresponding requirements on the weight precision of granular material blanking. Even in some cases, if the cooking device automatically puts salt into the frying pan, a weighing device cannot be placed in the pan, and a proper amount of salt should be automatically put into the pan by a quantitative feeding mode.

Therefore, the technical personnel in the field have been troubled for a long time by designing a screw pump which can meet the stable weight blanking precision.

Disclosure of Invention

The invention provides a conveying device, which aims to solve the problem that the conveying device in the prior art cannot meet the use requirement.

The present invention provides a conveying device, comprising: the material box is provided with a material cavity, the material cavity comprises a main material storage area, a secondary material storage area and a blanking area which are sequentially arranged, the main material storage area is provided with a feeding hole, and the blanking area is provided with a discharging hole; the separation subassembly, but axial displacement rotationally sets up in main storage area and inferior storage area, and the separation subassembly has the link and separates the end, and the separation end of separating the subassembly is located inferior storage area, is provided with first unloading screw thread on the outer wall of the separation end of separating the subassembly, the outer wall of first unloading screw thread and the inner wall clearance fit of inferior storage area.

Further, the conveying device further comprises: the stirring mandrel and the separation component are coaxially arranged, the stirring mandrel is in driving connection with the separation component so as to drive the separation component to rotate, the separation component is provided with a first position and a second position relative to the stirring mandrel in the axial direction, and the separation component can move between the first position and the second position relative to the stirring mandrel; and the limiting structure is arranged between the separation assembly and the stirring mandrel and is used for limiting the position of the separation assembly relative to the stirring mandrel.

Further, limit structure includes: the strip-shaped holes are arranged on the separating assemblies and extend along the axial direction of the separating assemblies; the locating part is worn to establish at the bar downthehole and is connected with the stirring dabber, and on the axial direction of separating the subassembly, the size in bar hole is greater than the size of locating part.

Furthermore, the separation assembly comprises a close control screw shaft, the close control screw shaft can axially move and can be rotatably arranged in the main material storage area and the secondary material storage area, the limiting structure is arranged between the stirring mandrel and the first end of the close control screw shaft, and the first blanking screw thread is arranged on the outer wall of the second end of the close control screw shaft.

Furthermore, a mounting hole is formed in the first end of the close control spiral shaft, one end of the stirring mandrel penetrates through the mounting hole, and the outer wall of the stirring mandrel is in clearance fit with the hole wall of the mounting hole.

Further, conveyor still includes the unloading subassembly, and the unloading subassembly rotationally sets up in the unloading district, and in the discharge gate was worn to establish by the unloading subassembly, was provided with second unloading screw thread on the outer wall of unloading subassembly, the outer wall of second unloading screw thread and the inner wall clearance fit of discharge gate.

Furthermore, the close-control screw shaft is provided with a first through hole, the stirring mandrel is provided with a second through hole, the first through hole and the second through hole are coaxially arranged, the blanking assembly penetrates through the first through hole and the second through hole and can rotate relative to the close-control screw shaft and the stirring mandrel, and the outer wall of the blanking assembly is in clearance fit with the hole wall of the first through hole.

Further, the unloading subassembly includes: the rotating shaft is rotatably arranged in the first through hole and the second through hole in a penetrating way; first through-hole is worn out and is connected with the first drive of stirring to the stirring head, the one end of pivot, and the stirring head is worn to establish in the discharge gate, and second unloading screw thread setting is on the outer wall of stirring head.

Further, separate the subassembly and still include the end lid, the end lid sets up on the second of close accuse screw axis is served, the end lid have with the sealed hole of first through-hole intercommunication, the pivot is worn to establish in the sealed hole, the outer wall of pivot and the inner wall clearance fit in sealed hole.

Further, the conveying device also comprises a stirring assembly, and the stirring assembly is arranged on the separation assembly and/or the blanking assembly.

Further, the stirring assembly comprises: the first stirring piece is arranged on the outer wall of the separation assembly and comprises a first section and a second section which are connected with each other, an included angle is formed between the first section and the second section, one end of the first section is connected with the outer wall of the separation assembly, and the second section is arranged in parallel with the inner wall of the main storage area; the second stirring piece is arranged on the outer wall of the blanking assembly and comprises a third section and a fourth section which are connected with each other, an included angle is formed between the third section and the fourth section, one end of the third section is connected with the outer wall of the blanking assembly, and the fourth section is arranged in parallel with the inner wall of the secondary storage area.

Furthermore, main storage area and unloading district are the infundibulate cavity, and the arbitrary radial cross sectional dimension in main storage area is greater than the arbitrary radial cross sectional dimension in unloading district, and inferior storage area is cylindrical cavity, and the bottom in main storage area coincides with the top in inferior storage area mutually, and the bottom in inferior storage area coincides with the top in unloading district mutually.

Furthermore, the conveying device further comprises a first driving part and a second driving part, the first driving part is in driving connection with the separation assembly, and the second driving part is in driving connection with the blanking assembly.

Further, conveyor still includes the support body, and the workbin is connected with the support body, and first drive division and second drive division all set up on the support body, and the workbin has dodges the portion, and the link of separating the subassembly is worn out and is connected with first drive division by dodging the portion.

Further, the conveying device further comprises: a position sensor for detecting a position of the partition member in the axial direction; and the controller is respectively electrically connected with the position sensor, the first driving part and the second driving part, and controls the first driving part and the second driving part to work according to data detected by the position sensor.

Further, the dimension of the first blanking thread in the axial direction of the partition assembly is larger than the dimension of the secondary storage area in the axial direction; the number of turns of the second blanking thread is between 0.5 and 2.5.

Furthermore, one end, located outside the discharge port, of the second discharging thread is provided with a section, and the section and the axis of the discharging assembly are located in the same vertical plane.

Further, the conveying device further comprises: and the injection structure is arranged at the discharge port and used for discharging the materials quantitatively.

Further, the pouring structure comprises: the quantitative piece is rotatably arranged below the material box, a plurality of quantitative holes are formed in the quantitative piece at intervals along the circumferential direction, the quantitative holes are arranged corresponding to the material outlet, and each quantitative hole is provided with a discharging position and a disconnecting position which are rotated to the material outlet; the injection part is fixed relative to the material box and is positioned below the quantitative part, the injection part is provided with an injection port, the axis of the injection port is positioned on the projection of a circular line formed by the centers of the plurality of quantitative holes, and the axis of the injection port is not coincident with the axis of the discharge port.

By applying the technical scheme of the invention, the conveying device comprises a bin and a separation assembly. The separation assembly is rotatably arranged in the main storage area and the secondary storage area, and the material can enter the discharging area through the gap between the first discharging thread at the separation end of the separation assembly and the secondary storage area and is discharged from the discharging port, so that the material is conveyed. Through setting up the partition subassembly, because the outer wall of the first unloading screw thread on the partition subassembly and the inner wall clearance fit of inferior storage area, the partition subassembly can separate main storage area and inferior storage area and unloading district, so the volume of material in the main storage area and the change of weight all can not lead to the fact the influence to inferior storage area and unloading district to can promote the unloading precision, and then satisfy the user demand. And but separate the subassembly axial displacement ground and set up in main storage area and inferior storage area, through adjusting the axial position who separates the subassembly, usable separation subassembly can further promote the unloading precision with the material compaction.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 illustrates a cross-sectional view of a delivery device provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a conveying apparatus provided according to an embodiment of the present invention;

FIG. 3 illustrates yet another cross-sectional view of a delivery device provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of another embodiment of a conveying apparatus provided in accordance with the present invention;

FIG. 5 shows a partial cross-sectional view at the spacing structure of FIG. 1;

FIG. 6 shows a partial cross-sectional view of the discharge outlet of FIG. 1;

FIG. 7 shows a schematic structural view of the mixing head of FIG. 1;

FIG. 8 shows a cross-sectional view of the partition assembly and stirring mandrel of FIG. 1;

FIG. 9 shows a schematic structural view of the blanking assembly of FIG. 1;

FIG. 10 shows a schematic view of the magazine, rack and first drive of FIG. 1;

FIG. 11 is a schematic structural diagram of a conveying device according to a second embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a conveying device according to a second embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a second conveying device according to the second embodiment of the present invention;

FIG. 14 is a statistical graph showing the number of times of material feeding and the amount of material feeding of a screw pump according to the related art;

fig. 15 is a statistical chart showing the number of times of blanking and the blanking amount of the conveying device provided in the embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a material box; 11. a material cavity; 111. a main storage area; 112. a secondary storage area; 113. a blanking area; 114. a feed inlet; 115. a discharge port; 12. a material box body; 13. a top cover; 14. an avoidance part; 20. a partition assembly; 21. a connecting end; 22. a separation end; 23. a first blanking screw thread; 24. a screw shaft is closely controlled; 241. mounting holes; 242. a first through hole; 25. a terminal cover; 251. sealing the hole; 30. a blanking assembly; 31. a second blanking thread; 311. cutting the surface; 32. a rotating shaft; 33. a stirring head; 40. a stirring mandrel; 41. a second through hole; 50. a limiting structure; 51. a strip-shaped hole; 52. a limiting member; 60. a stirring assembly; 61. a first stirring member; 611. a first stage; 612. a second stage; 62. a second stirring member; 621. a third stage; 622. a fourth stage; 71. a first driving section; 711. a synchronous pulley; 712. a synchronous belt; 72. a second driving section; 80. a frame body; 90. a position sensor; 101. a first bearing; 102. a second bearing; 103. a third bearing; 121. a dosing member; 1211. a dosing aperture; 122. injecting the part; 1221. and a pouring outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 8, according to one embodiment of the present invention, there is provided a conveying device, which includes a bin 10 and a partition assembly 20, wherein the bin 10 has a bin 11, the bin 11 includes a primary storage area 111, a secondary storage area 112 and a blanking area 113, which are sequentially arranged, and the partition assembly 20 is axially movable and rotatably arranged in the primary storage area 111 and the secondary storage area 112. The main material storage area 111 is provided with a feeding port 114, the blanking area 113 is provided with a discharging port 115, and materials can enter the main material storage area 111 from the feeding port 114, then sequentially pass through the main material storage area 111, the secondary material storage area 112 and the blanking area 113, and finally are discharged from the discharging port 115. Specifically, the partition unit 20 has a connecting end 21 and a partition end 22, the partition end 22 of the partition unit 20 is located in the secondary magazine 112, and the partition end 22 of the partition unit 20 is used to partition the primary magazine 111 from the secondary magazine 112 and the blanking section 113.

Through set up first unloading screw thread 23 on the outer wall of the partition end 22 of separating subassembly 20, because the outer wall of first unloading screw thread 23 and the inner wall clearance fit of inferior magazine 112, both can realize separating main magazine 111 and inferior magazine 112 and unloading district 113, can also guarantee that the material can be arranged to unloading district 113 through the clearance between the outer wall of first unloading screw thread 23 and the inner wall of inferior magazine 112 when separating subassembly 20 and rotating.

Use the conveyor that this embodiment provided, through setting up partition assembly 20, utilize partition assembly 20's partition end 22, can realize separating main storage area 111 and inferior storage area 112 and unloading district 113, so the change of the volume of material in main storage area 111 and weight can not lead to the fact the influence to inferior storage area 112 and unloading district 113, thereby can promote the unloading precision, and then satisfy the user demand. In addition, by adjusting the axial position of the separation component 20 in the material cavity, in the discharging process, the separation component 20 can be utilized to compact the material in the discharging area 113, so that the discharging precision can be further improved.

As shown in fig. 1 and 5, the conveying device further includes a stirring mandrel 40 and a limiting structure 50, the stirring mandrel 40 is coaxially disposed with the separation assembly 20, and the limiting structure 50 is disposed between the separation assembly 20 and the stirring mandrel 40. The stirring mandrel 40 is in driving connection with the separation assembly 20, and the stirring mandrel 40 can be used for driving the separation assembly 20 to rotate, so that the materials in the main material storage area 111 are conveyed into the blanking area 113. Wherein the partition member 20 has a first position and a second position in the axial direction relative to the stirring mandrel 40, the partition member 20 being movable between the first position and the second position relative to the stirring mandrel 40 in order to convey the material into the blanking region 113 and to compact the material in the blanking region by means of the partition member 20. In this embodiment, the limiting structure 50 is used to limit the position of the partition assembly 20 relative to the stirring mandrel 40. Specifically, the limiting structure 50 can limit the rotation of the partition assembly 20 relative to the stirring mandrel 40, and limit the axial movement range of the partition assembly 20 between the first position and the second position.

In this embodiment, limit structure 50 includes bar hole 51 and locating part 52, and bar hole 51 sets up on separating subassembly 20, and locating part 52 wears to establish in bar hole 51 and is connected with stirring dabber 40, and limiting part 52 can accomplish the up-and-down motion in bar hole 51, also can transmit torsional force to the lateral wall in bar hole 51, drives and separates subassembly rotary motion. Because the strip-shaped hole 51 extends along the axial direction of the partition assembly 20, and in the axial direction of the partition assembly 20, the size of the strip-shaped hole 51 is larger than that of the limiting member 52, a moving space can be provided for the limiting member 52 by utilizing the space between the strip-shaped hole 51 and the limiting member 52, so that the axial moving range of the partition assembly 20 is limited between the first position and the second position.

The shape of the limiting member 52 may be a strip, a cylinder, etc., and if the limiting member 52 is made to be a cylinder, a roller (or a bearing) may be installed on an outer circumferential surface of the cylinder, so that force is transferred through the roller, thereby reducing friction during movement. A strip hole 51 and locating part 52 can accomplish driven function, but if strip hole 51 sets up in pairs at the partition subassembly, or three equipartitions are on the partition subassembly, and equal quantity of locating part 52 cooperatees with strip hole 51, and the effect of biography power is better each other, and the motion of partition subassembly in each direction is more steady.

In other embodiments, the strip-shaped hole 51 may be disposed on the stirring mandrel 40, and the limiting member 52 is inserted into the strip-shaped hole 51 and connected to the separating member 20.

As shown in fig. 1 and 3, the partition assembly 20 includes a close-control screw shaft 24, the close-control screw shaft 24 is axially movably and rotatably disposed in the main storage area 111 and the sub storage area 112, the limit structure 50 is disposed between the stirring mandrel 40 and a first end of the close-control screw shaft 24, and the first blanking screw 23 is disposed on an outer wall of a second end of the close-control screw shaft 24. Specifically, the strip hole 51 is provided on a first end of the close-control screw shaft 24, and a second end of the close-control screw shaft 24 is located in the secondary bank 112. In the present embodiment, the screw shaft 24 is made of a metal material.

As shown in fig. 1, in this embodiment, the conveying device further includes a blanking assembly 30, the blanking assembly 30 is rotatably disposed in the blanking region 113, the blanking assembly 30 is disposed in the discharge port 115 in a penetrating manner, a second blanking thread 31 is disposed on an outer wall of the blanking assembly 30, and an outer wall of the second blanking thread 31 is in clearance fit with an inner wall of the discharge port 115. When the blanking assembly 30 rotates, the material in the blanking region 113 can be discharged through the gap between the outer wall of the second blanking screw 31 and the inner wall of the discharge hole 115 to complete the discharge.

In the present embodiment, the first end of the tight-control screw shaft 24 is provided with a mounting hole 241, one end of the stirring mandrel 40 is inserted into the mounting hole 241, and the outer wall of the stirring mandrel 40 is in clearance fit with the hole wall of the mounting hole 241, so that when the tight-control screw shaft 24 moves axially relative to the stirring mandrel 40, the stirring mandrel 40 does not interfere with the tight-control screw shaft 24.

In other embodiments, a mounting hole may be provided in the stirring spindle 40, and then the first end of the close-control screw shaft 24 may be inserted into the mounting hole.

As shown in fig. 1 and 8, the close-control screw shaft 24 has a first through hole 242, the stirring mandrel 40 has a second through hole 41, the first through hole 242 and the second through hole 41 are coaxially disposed, the blanking assembly 30 is inserted into the first through hole 242 and the second through hole 41 and can rotate relative to the close-control screw shaft 24 and the stirring mandrel 40, and the outer wall of the blanking assembly 30 is in clearance fit with the hole wall of the first through hole 242, so that when the blanking assembly 30 rotates, the close-control screw shaft 24 does not cause interference to the blanking assembly 30.

In other embodiments, the feeding assembly 30 does not have to be inserted into the screw shaft 24 and the stirring core shaft 40, and the feeding assembly 30 can be inserted into the discharging hole 115 at the position where the second feeding screw 31 is provided, and the feeding assembly 30 can be rotated to discharge.

As shown in fig. 1 and 9, the blanking assembly 30 includes a rotating shaft 32 and a stirring head 33, and the rotating shaft 32 is rotatably disposed through the first through hole 242 and the second through hole 41. One end of the rotating shaft 32 penetrates through the first through hole 242 and is in driving connection with the stirring head 33, and the stirring head 33 can be driven to rotate by the rotating shaft 32. The stirring head 33 is arranged in the discharge port 115 in a penetrating manner, and the second discharging thread 31 is arranged on the outer wall of the stirring head 33. The blanking assembly 30 is provided with the rotating shaft 32 and the stirring head 33 which are detachably connected, so that the blanking assembly has the advantages of convenience in assembly and convenience in processing. In actual production, the rotating shaft can be produced in multiple sections in consideration of processing, installation, shaft hole sealing and the like.

As shown in fig. 1 and 8, the separating assembly 20 further includes a tip cover 25, the tip cover 25 is detachably connected to the second end of the sealing screw shaft 24, the tip cover 25 has a sealing hole 251 communicated with the first through hole 242, the rotating shaft 32 is inserted into the sealing hole 251, and an outer wall of the rotating shaft 32 is in clearance fit with an inner wall of the sealing hole 251. The end cap 25 is cylindrical. Specifically, the end cap 25 is used for protecting the lower end surface of the screw tight-control shaft 24, and preventing materials from directly entering the first through hole of the screw tight-control shaft 24 to cause blockage and influence the operation of the mechanism. By adopting the structure, the sealing performance of the device can be improved, and the use stability of the device can be improved.

As shown in fig. 1, 8 and 9, the conveying device further includes a stirring assembly 60, and the stirring assembly 60 is disposed on the separating assembly 20 and the blanking assembly 30. The stirring assembly 60 is used for stirring the materials in the main material storage area 111 and the secondary material storage area 112, so that the materials can flow conveniently, the materials can be discharged conveniently, and the materials can be discharged from the discharge hole in a continuous and uniform state. In the present embodiment, the stirring effect can be improved by providing the stirring assembly 60 on both the partition assembly 20 and the blanking assembly 30. In other embodiments, the stirring assembly 60 may be disposed on one of the separating assembly 20 and the blanking assembly 30, which can simplify the structure of the apparatus and reduce the cost.

Wherein, stirring subassembly 60 includes first stirring piece 61 and second stirring piece 62, and first stirring piece 61 sets up on the outer wall of separating subassembly 20 and is located main storage area 111, and second stirring piece 62 sets up on the outer wall of unloading subassembly 30 and is located inferior storage area 112, and first stirring piece 61 is used for stirring the material in main storage area 111, and second stirring piece 62 is used for stirring the material in inferior storage area 112. Specifically, the first stirring member 61 includes a first section 611 and a second section 612 which are connected with each other, an included angle is formed between the first section 611 and the second section 612, one end of the first section 611 is connected with the outer wall of the partition component 20, the second section 612 is arranged in parallel with the inner wall of the main storage area 111, the second stirring member 62 includes a third section 621 and a fourth section 622 which are connected with each other, an included angle is formed between the third section 621 and the fourth section 622, one end of the third section 621 is connected with the outer wall of the blanking component 30, and the fourth section 622 is arranged in parallel with the inner wall of the secondary storage area 112. Also, the first segment 611 and the third segment 621 are both perpendicular to the axis of the partition assembly 20. By adopting the structure, the stirring effect can be ensured to the maximum extent. In the present embodiment, the first stirring member 61 and the second stirring member 62 are both stirring blades.

As shown in fig. 1 and 6, the main storage area 111 and the blanking area 113 are both funnel-shaped cavities, and any radial cross-sectional dimension of the main storage area 111 is larger than any radial cross-sectional dimension of the blanking area 113, so that the material flow is facilitated. The secondary storage area 112 is a cylindrical cavity, the bottom of the main storage area 111 coincides with the top of the secondary storage area 112, and the bottom of the secondary storage area 112 coincides with the top of the blanking area 113.

As shown in fig. 2 and 3, the conveying device further includes a first driving portion 71 and a second driving portion 72, the first driving portion 71 is in driving connection with the separation assembly 20, the first driving portion 71 is used for driving the separation assembly 20 to rotate, the second driving portion 72 is in driving connection with the blanking assembly 30, and the second driving portion 72 is used for driving the blanking assembly 30 to rotate. The first driving part and the second driving part include but are not limited to modes of direct connection of a motor, matching of the motor and a rack or a belt, matching of the motor and a gear and the like.

In the present embodiment, the first driving portion 71 and the second driving portion 72 are both stepping motors. The motor shaft of the first driving portion 71 is not coaxial with the stirring mandrel 40, and the power shaft of the first driving portion 71 and the stirring mandrel 40 are driven to rotate through a first coupler, a synchronous pulley 711 and a synchronous belt 712. The second driving portion 72 is coaxial with the rotating shaft 32, the second driving portion 72 is directly connected to the rotating shaft 32 by a second coupling, and the rotating shaft 32 is driven by the second driving portion 72 to rotate relative to the frame body. The stirring mandrel 40 transmits the torque of the first driving part 71 to the tight control screw shaft 24 through the matching of the limiting part 52 and the strip-shaped hole 51, and then realizes the rotation motion and the up-and-down motion of the tight control screw shaft 24.

As shown in fig. 1 and 10, the conveying apparatus further includes a frame 80, the bin 10 is connected to the frame 80, and the first driving part 71 and the second driving part 72 are both disposed on the frame 80. The magazine 10 has an escape section 14, and the connecting end 21 of the separating element 20 protrudes through the escape section 14 and is connected to the first drive section 71. In the present embodiment, the relief portion 14 is a relief hole.

As shown in fig. 1 and 5, the delivery device further includes a position sensor 90 and a controller. The position sensor 90 is used for detecting the position of the partition assembly 20 in the axial direction, and the controller is electrically connected to the position sensor 90, the first driving part 71 and the second driving part 72, and the controller can control the first driving part 71 and the second driving part 72 to operate according to the data detected by the position sensor 90.

The position sensor 90 is located to ensure that the lower end of the first blanking screw thread at the lower part of the screw tight-control shaft 24 is always located in the secondary material storage area. In this embodiment, the position sensor 90 is installed on the lower plate surface of the rack body and is used for testing the position of the upper edge of the screw tight-control shaft 24, when the position sensor 90 tests that the position of the upper edge of the screw tight-control shaft 24 and the position of the position sensor 90 are close to a preset value, the controller controls the first driving part 71 to stop working, and informs and controls the second driving part 72 to work, and the feeding and discharging processes are completed through the cooperation of the various parts. Of course, the position sensor 90 may be disposed at the top of the feed box, as long as the measurement of the position change of the screw axis 24 in the vertical direction can be completed.

In this embodiment, the dimension of the first blanking screw 23 in the axial direction along the partition assembly 20 is greater than the dimension of the secondary storage area 112 in the axial direction, so that it can be ensured that the partition end of the partition assembly 20 is always located in the secondary storage area 112, and the main storage area 111 and the blanking area 113 are always in a partitioned state. Moreover, no matter the partition assembly 20 moves to any position along the axial direction, the material can be ensured to enter the blanking area 113 from the main material storage area 111 all the time.

In the present embodiment, the number of turns of the second blanking screw 31 is between 0.5 and 2.5.

As shown in fig. 7, one end of the second discharging screw 31 located outside the discharging port 115 has a cross section 311, the cross section 311 is located in the same vertical plane with the axis of the discharging component 30, and the tail of the spiral line of the second discharging screw 31 is ensured to have a complete spiral characteristic.

As shown in fig. 11 to 13, a second embodiment of the present application provides a conveying device, which is different from the first embodiment in that the conveying device further includes: and the injection structure is arranged at the discharge port 115, and the quantitative discharge of the materials can be controlled by arranging the injection structure.

Specifically, the pouring structure includes: a dosing member 121 and an ejection member 122. The quantitative member 121 is rotatably disposed below the material box 10, a plurality of quantitative holes 1211 are formed in the quantitative member 121 at intervals along the circumferential direction, the quantitative holes 1211 are disposed corresponding to the material outlet 115, and each quantitative hole 1211 has a material discharging position and a cut-off position which are rotated to the material outlet 115. The injection member 122 is fixed relative to the bin 10 and located below the dosing member 121, the injection member 122 has an injection port 1221, an axis of the injection port 1221 is located on a projection of a circular line formed by centers of the plurality of dosing holes 1211, and an axis of the injection port 1221 is not coincident with an axis of the discharge port 115. When the quantitative member 121 rotates to a position where one of the quantitative holes 1211 is aligned with the discharge port 115, the quantitative member is in a blanking position, and a storage cavity formed by the cooperation of the space of the quantitative hole 1211 and the injection member 122 stores a certain volume of material, and when the quantitative member 121 continues to rotate to align the quantitative hole 1211 with the injection port 1221, the material in the quantitative hole 1211 can be discharged from the injection port 1221, so that the purpose of quantitative blanking is achieved. The device simple structure, the unloading control is accurate.

As shown in fig. 11 and 13, in the second embodiment, the transport apparatus may be provided with only the first drive unit, or may be provided with both the first drive unit and the second drive unit. The first driving part and the second driving part are matched to control the conveying device to work, so that the use flexibility of the device can be improved.

As shown in fig. 1, a first bearing 101 is disposed on the outer circumferential surface of the stirring mandrel, and the outer ring of the first bearing 101 is mounted on the frame body 80, so that the upper shaft diameter of the stirring mandrel is mounted on the frame body through the first bearing 101. The first bearing 101 is a rolling bearing.

As shown in fig. 1, 5 and 8, the outer circumferential surface of the rotating shaft 32 is rotatably connected to the stirring spindle 40 via a second bearing 102. The outer circular surface of the rotating shaft 32 is not fixedly connected with the inner wall of the sealing screw shaft 24, but a pair of third bearings 103 can be arranged between the outer circular surface and the inner wall, the outer ring of each third bearing is fixedly matched with the first through hole of the sealing screw shaft 24, and the inner ring of each third bearing is in clearance fit with the rotating shaft. The movement of the rotating shaft 32 and the movement of the tightly-controlled spiral shaft 24 are independent and do not interfere with each other.

In this embodiment, workbin 10 includes workbin body 12 and top cap 13, and main storage area 111, inferior storage area 112 and unloading district 113 all set up in workbin body 12, and top cap 13 lid is established on workbin body 12, and the top cap passes through bolt and workbin body fixed connection.

To facilitate understanding of the apparatus provided in the embodiments, the following is explained in conjunction with the use process:

(1) the material enters the main material storage area from a feeding hole at the upper part of the material box, at the moment, a gap between the outer circular surface of the sealing screw shaft and the inner wall of the secondary material storage area is smaller, and the powder cannot flow into the secondary material storage area from the gap between the outer circular surface of the sealing screw shaft and the inner wall of the secondary material storage area;

(2) when the materials need to be discharged outwards, the controller drives the sealing screw shaft to rotate, and the materials in the main material storage area are conveyed to the secondary material storage area and the discharging area under the drive of the stirring blades and the first discharging threads on the outer circular surface of the sealing screw shaft;

(3) with the increase of the materials in the secondary material storage area and the blanking area, when the space in the secondary material storage area and the blanking area is completely filled with the materials, the materials are continuously conveyed into the secondary material storage area by the blanking threads on the tightly-controlled screw shaft, and at the moment, the materials in the secondary material storage area provide upward thrust to the lower bottom surface of the tightly-controlled screw shaft to push the tightly-controlled screw shaft upward;

(4) after the position sensor detects that the position change of the closely-controlled screw shaft in the vertical direction accords with a set position in the controller, the controller controls the first driving part to stop working, the closely-controlled screw shaft stops rotating, the second driving part works under the control of the controller, the second driving part drives the blanking assembly to rotate, and under the action of the blanking threads, the stirring blades and the closely-controlled screw shaft of the blanking assembly, materials are uniformly output from the discharge port, so that a high-precision weighing task is completed. Because the lower bottom surface of the closed control screw shaft applies a constant weight downward force to the materials in the secondary material storage area, the downward pressure of the materials in the secondary material storage area and the blanking area is constant all the time, the materials in the secondary material storage area and the inner part of the blanking area are uniformly blanked all the time under the main action of the force, and the blanking precision is kept;

(5) the height of the tightly-controlled screw shaft is reduced along with the feeding, after the position sensor detects that the position change of the tightly-controlled screw shaft in the vertical direction is in accordance with the other position set in the controller, the controller controls the first driving part to work, the first driving part drives the tightly-controlled screw shaft to rotate, the materials enter the secondary material storage area from the main material storage area, the discharging circulation is continued, the stable flowing of the materials is ensured, and the feeding precision is ensured.

The step number of the stepping motor required by the material with the specified quality can be obtained by theoretical calculation and certain tests, and the corresponding weight can be obtained by controlling the step number of the stepping motor. By using the device provided by the embodiment, the fluctuation of the density of the material in the bin is reduced, and the deviation of the blanking amount caused by the change (reduction) of the material amount in the bin in the use of the screw pump is also reduced.

As shown in fig. 14 and 15, the following set of comparative experimental data can illustrate this point and is also a technical effect of the present invention: firstly, a certain amount of material is poured out each time from the time when the material box is filled with the material by using a screw pump (figure 14) without using the screw pump, until the material in the material box is used up, and the abscissa of figure 14 is the blanking frequency for blanking the whole material in the material box. In the process, the material in the bin is used less and less along with the repeated feeding of the screw pump, the feeding amount (the ordinate value of fig. 14) per time is also reduced along with the reduction of the material amount in the bin (the downward trend of fig. 14), and the fluctuation amount of the feeding amount per time relative to the standard amount can be seen from fig. 14. Then, after the device of the invention is additionally used in the prior art (fig. 15), a certain amount of material is poured out each time from the time when the material in the bin is full until the material in the bin is used up, and the abscissa of fig. 15 is the blanking frequency for blanking the whole material in the bin. In the process, the material in the bin is used less and less along with the repeated feeding of the screw pump, but the feeding amount (the vertical coordinate value of fig. 15) is basically not reduced much along with the reduction of the material amount in the bin (the horizontal trend of fig. 15), and the feeding amount and the fluctuation amount of the feeding amount deviating from the required (specified value) along with the reduction of the material in the bin are obviously lower than those of the screw pump which is not used in the invention in fig. 14.

For powders with poor flowability, that is, powders in which the first lower screw thread 23 of the partition member 20 in the structure of the present invention can rise upward in the powder by the force of the screw thread and the powder when rotating in the powder, the powder is also suitable for use in the present invention. The invention meets the requirement of improving precision and avoids the research and development of devices with high manufacturing cost.

The device provided by the embodiment has the following beneficial effects:

(1) the function of the tightly-controlled screw shaft in the device is to spatially separate a main material storage area and an auxiliary material storage area into two parts, and in the discharging process, the weight change of materials in the main material storage area does not influence the materials in the auxiliary material storage area and the discharging area, so that the powder at the discharging port is always ensured to have a stable pressure value, and the discharging precision is ensured.

(2) The other function of the tightly-controlled screw shaft in the device is that the tightly-controlled screw shaft is directly pressed on materials in the secondary material storage area and the blanking area, and a constant discharging pressure is provided for the materials in the secondary material storage area and the blanking area by means of the weight of the tightly-controlled screw shaft, so that the pressure of the discharging port is constant within a range, and the flow of the materials in the secondary material storage area and the blanking area to the discharging port is facilitated, and the discharging is continuously carried out.

(3) The structure of the blanking assembly in the device ensures the stability of discharging and feeding, and has pioneering property in the field.

(4) The number of turns that the unloading subassembly is located the second unloading screw thread of discharge gate is between 1.5 circles to 2.5 circles, and this can make the unloading in-process, and the friction between material and the unloading screw thread generates heat, the elasticity of material and unloading screw thread are in a better balance point, guarantees the invariant of unloading process, improves the unloading precision.

(5) The section is arranged on the spiral line of the tail part of the second discharging thread, the section and the axis of the discharging assembly are located in the same vertical plane, and the design form of the discharging thread enables powder at the tail part of the discharging assembly to fall down from the discharging port when the discharging assembly stops rotating, so that the specified discharging amount is completed. If the afterbody of helix is connected with the excircle face of unloading subassembly with the pitch arc of a gentle transition, when unloading subassembly stall, some powder stop in the afterbody of helix easily, lead to the blanking incomplete, increase final ejection of compact error.

Therefore, by adopting the device provided by the embodiment, under the conditions that a weighing device is not used, a position testing device or a volume measuring device for controlling the storage amount of the materials in the bin is not used, and a feeding device for ensuring the material amount in the bin is not used, the tendency that the material amount deviates from the required amount due to the reduction of the materials in the bin in the multiple blanking processes can be ensured, the variable quantity of the blanking weight caused by the density instability of the materials in the bin is reduced, and the blanking weight of the powder and the granular materials meeting the weight requirement is obtained.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveyor apparatus, characterized in that the conveyor apparatus comprises:

the material box (10) is provided with a material cavity (11), the material cavity (11) comprises a main material storage area (111), a secondary material storage area (112) and a blanking area (113) which are sequentially arranged, the main material storage area (111) is provided with a feeding hole (114), and the blanking area (113) is provided with a discharging hole (115);

divide subassembly (20), but axial displacement and rotationally set up main magazine (111) with in inferior magazine (112), divide subassembly (20) to have link (21) and separate end (22), the partition end (22) of dividing subassembly (20) are located in inferior magazine (112), be provided with first unloading screw thread (23) on the outer wall of the partition end (22) of dividing subassembly (20), the outer wall of first unloading screw thread (23) with the inner wall clearance fit of inferior magazine (112).

2. The delivery device of claim 1, further comprising:

the stirring mandrel (40) is coaxially arranged with the separation component (20), the stirring mandrel (40) is in driving connection with the separation component (20) to drive the separation component (20) to rotate, the separation component (20) has a first position and a second position relative to the stirring mandrel (40) in the axial direction, and the separation component (20) can move between the first position and the second position relative to the stirring mandrel (40);

the limiting structure (50) is arranged between the separation assembly (20) and the stirring mandrel (40), and the limiting structure (50) is used for limiting the position of the separation assembly (20) relative to the stirring mandrel (40).

3. The delivery device according to claim 2, wherein the stop arrangement (50) comprises:

a strip-shaped hole (51) arranged on the separation assembly (20), the strip-shaped hole (51) extending along the axial direction of the separation assembly (20);

the limiting part (52) penetrates through the strip-shaped hole (51) and is connected with the stirring mandrel (40), and the size of the strip-shaped hole (51) is larger than that of the limiting part (52) in the axial direction of the separation assembly (20).

4. The conveying device according to claim 2 or 3, characterized in that the separation assembly (20) comprises a tight control screw shaft (24), the tight control screw shaft (24) being axially movable and rotatably arranged in the primary magazine (111) and the secondary magazine (112), the limiting structure (50) being arranged between the stirring mandrel (40) and a first end of the tight control screw shaft (24), the first unloading screw thread (23) being arranged on an outer wall of a second end of the tight control screw shaft (24).

5. The conveying device according to claim 4, wherein a mounting hole (241) is formed at a first end of the close control screw shaft (24), one end of the stirring mandrel (40) is arranged in the mounting hole (241) in a penetrating manner, and the outer wall of the stirring mandrel (40) is in clearance fit with the wall of the mounting hole (241).

6. The conveying device according to claim 5, characterized in that the conveying device further comprises a blanking assembly (30), the blanking assembly (30) is rotatably disposed in the blanking area (113), the blanking assembly (30) is disposed in the discharge port (115) in a penetrating manner, a second blanking thread (31) is disposed on an outer wall of the blanking assembly (30), and an outer wall of the second blanking thread (31) is in clearance fit with an inner wall of the discharge port (115).

7. The conveying device according to claim 6, wherein the sealing screw shaft (24) has a first through hole (242), the stirring mandrel (40) has a second through hole (41), the first through hole (242) and the second through hole (41) are coaxially arranged, the blanking assembly (30) is arranged in the first through hole (242) and the second through hole (41) in a penetrating manner and can rotate relative to the sealing screw shaft (24) and the stirring mandrel (40), and the outer wall of the blanking assembly (30) is in clearance fit with the hole wall of the first through hole (242).

8. The conveying device according to claim 7, characterized in that said blanking assembly (30) comprises:

a rotating shaft (32), wherein the rotating shaft (32) is rotatably arranged in the first through hole (242) and the second through hole (41) in a penetrating way;

stirring head (33), the one end of pivot (32) is worn out first through-hole (242) and with stirring head (33) drive connection, stirring head (33) are worn to establish in discharge gate (115), second unloading screw thread (31) set up on the outer wall of stirring head (33).

9. The conveying device according to claim 8, wherein the separating assembly (20) further comprises a head cover (25), the head cover (25) is disposed on the second end of the sealing screw shaft (24), the head cover (25) has a sealing hole (251) communicated with the first through hole (242), the rotating shaft (32) is inserted into the sealing hole (251), and the outer wall of the rotating shaft (32) is in clearance fit with the inner wall of the sealing hole (251).

10. Conveyor device according to any one of claims 6 to 8, characterized in that it further comprises an agitation assembly (60), said agitation assembly (60) being provided on said dividing assembly (20) and/or on said blanking assembly (30).

11. The delivery device according to claim 10, wherein the stirring assembly (60) comprises:

a first stirring member (61) arranged on the outer wall of the separation assembly (20), wherein the first stirring member (61) comprises a first section (611) and a second section (612) which are connected with each other, an included angle is formed between the first section (611) and the second section (612), one end of the first section (611) is connected with the outer wall of the separation assembly (20), and the second section (612) is arranged in parallel with the inner wall of the main material storage area (111);

the second stirring piece (62) is arranged on the outer wall of the blanking assembly (30), the second stirring piece (62) comprises a third section (621) and a fourth section (622) which are connected with each other, an included angle is formed between the third section (621) and the fourth section (622), one end of the third section (621) is connected with the outer wall of the blanking assembly (30), and the fourth section (622) and the inner wall of the secondary storage area (112) are arranged in parallel.

12. The conveying device according to claim 11, wherein the main storage area (111) and the blanking area (113) are funnel-shaped cavities, any radial cross-sectional dimension of the main storage area (111) is larger than any radial cross-sectional dimension of the blanking area (113), the secondary storage area (112) is a cylindrical cavity, the bottom of the main storage area (111) coincides with the top of the secondary storage area (112), and the bottom of the secondary storage area (112) coincides with the top of the blanking area (113).

13. The conveying device according to claim 6, characterized in that it further comprises a first drive (71) and a second drive (72), said first drive (71) being in driving connection with said dividing assembly (20) and said second drive (72) being in driving connection with said blanking assembly (30).

14. The conveying device according to claim 13, characterized in that the conveying device further comprises a frame body (80), the bin (10) is connected with the frame body (80), the first driving portion (71) and the second driving portion (72) are both arranged on the frame body (80), the bin (10) is provided with an avoiding portion (14), and the connecting end (21) of the partition assembly (20) penetrates out of the avoiding portion (14) and is connected with the first driving portion (71).

15. The delivery device of claim 13, further comprising:

a position sensor (90), the position sensor (90) being for detecting a position of the partition assembly (20) in an axial direction;

and the controller is respectively and electrically connected with the position sensor (90), the first driving part (71) and the second driving part (72), and the controller controls the first driving part (71) and the second driving part (72) to work according to data detected by the position sensor (90).

16. The delivery device of claim 6,

the dimension of the first blanking thread (23) in the axial direction along the partition assembly (20) is greater than the dimension of the secondary magazine (112) in the axial direction;

the number of turns of the second blanking thread (31) is between 0.5 and 2.5.

17. Conveying device according to claim 6, characterized in that the end of the second feed screw (31) outside the discharge opening (115) has a section (311), said section (311) being located in the same vertical plane as the axis of the feed assembly (30).

18. The delivery device of claim 6, further comprising:

and the injection structure is arranged at the discharge hole (115) and is used for discharging the materials quantitatively.

19. The delivery device of claim 18, wherein the out-feed structure comprises:

the quantitative part (121) is rotatably arranged below the feed box (10), a plurality of quantitative holes (1211) are formed in the quantitative part (121) at intervals along the circumferential direction, the quantitative holes (1211) are arranged corresponding to the discharge port (115), and each quantitative hole (1211) has a feeding position and a disconnection position which are rotated to the discharge port (115);

the injection piece (122) is fixed relative to the material box (10) and located below the quantitative piece (121), the injection piece (122) is provided with an injection port (1221), the axis of the injection port (1221) is located on the projection of a circular line formed by the circle centers of the quantitative holes (1211), and the axis of the injection port (1221) is not coincident with the axis of the discharge port (115).