CN214918014U

CN214918014U - A choice screening plant for flour

Info

Publication number: CN214918014U
Application number: CN202121186030.8U
Authority: CN
Inventors: 朱德伟; 李国�; 张柏林; 杨占龙; 贾明洁
Original assignee: Jilin Province Dewei Cereals Industry Co ltd
Current assignee: Jilin Province Dewei Cereals Industry Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-30
Anticipated expiration: 2031-05-31

Abstract

The utility model provides a choice screening plant for flour, including screening plant body (100), wherein, screening plant body (100) includes feed inlet (101), screening case (102), discharge gate (103) and collecting box (104); screening case (102) inside sets gradually a plurality of screening subassemblies (200) from top to bottom, and screening subassembly (200) are including fixed grip block (21), expanding spring (22), screening net (23), slide bar (24) and actuating mechanism (25), and actuating mechanism (25) are including drive connecting rod (251), are rotated wheel (252), drive wheel (253) and drive belt (254). The screening device solves the problem that the traditional screening device has simpler functions, and can effectively screen flour for two or more times so as to ensure the fineness of the flour; meanwhile, the screening device is high in mechanical degree, can effectively liberate labor productivity, improves screening efficiency, and avoids blocking of a screen by flour in the screening process.

Description

A choice screening plant for flour

Technical Field

The utility model relates to a food processing technology field, concretely relates to a choice screening plant for flour.

Background

Flour is a powder ground from wheat. According to the content of protein in the flour, the flour can be divided into high gluten flour, medium gluten flour, low gluten flour and non-gluten flour, the flour is staple food in most regions in the north of China, and the foods made of the flour have various varieties and different flavors. In general, after being ground into flour, wheat needs to be processed and sieved again, flour is sieved into flours with different tastes and different grades according to the size of flour particles and then is bagged, and therefore, the flour with different tastes is favorably selected by consumers.

In the prior art, two modes are mainly adopted for flour screening, wherein one mode is manual operation by manpower, namely, the flour is poured into a screen and is screened manually, but the manual operation by manpower is low in working efficiency and wastes a large amount of manpower and material resources, the screening time is long, if fine screening is required and the screen needs to be replaced, the process steps are complicated, and the flour is easily wasted; the mode is utilized mechanical screening among the prior art flour screening's another, but flour screening plant screening efficiency among the prior art is low, degree of automation is low, and the screen cloth surface has a small amount of flour reunion simultaneously, the device can't carry out automatic clearance to cause the screen cloth to block up, influence going on of screening process.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a fine screening device for flour, which solves the problem that the traditional screening device has simpler function and can effectively screen the flour for two or more times so as to ensure the fineness of the flour; simultaneously, this screening plant degree of mechanization is high, can effectively liberate labor productivity, improve screening efficiency, and screening process can be automatically cleaned the screen cloth, avoid flour to block up the screen cloth.

The purpose of the utility model is realized through the following technical scheme:

a choice screening plant for flour which characterized in that: the flour screening device comprises a screening device body, wherein the screening device body comprises a feed inlet, a screening box, a discharge outlet and a collecting box, and the feed inlet is formed in the top of the screening box and used for sequentially feeding flour to be screened; the discharge port is arranged at the bottom of the screening box, and one end of the discharge port, which is far away from the screening box, is arranged in the collection box, so that the screened flour is collected;

the screening box is internally and sequentially provided with a plurality of screening components from top to bottom, and each screening component comprises a fixed clamping plate, a telescopic spring, a screening net, a sliding rod and a driving mechanism; the fixed clamping plate is arranged on the side wall of one side of the screening box, a sliding groove is formed in the middle of the fixed clamping plate, one end of the screening net is connected with the bottom of the concave part of the sliding groove through a telescopic spring, and the upper end and the lower end of the screening net are connected with the sliding groove in a sliding mode; the middle part of one end of the screening net far away from the telescopic spring is fixedly connected with a sliding rod, the side wall of the screening box opposite to the fixed clamping plate is provided with a sliding groove penetrating through the side wall of the screening box, one end of the sliding rod far away from the screening net penetrates through the sliding groove, the outer wall of the sliding rod is connected with the inner wall of the sliding groove in a sliding manner, the outer wall of the sliding rod and the middle part of the sliding groove are uniformly provided with a plurality of sliding limit blocks (when the telescopic spring is in an original long state, namely, does not deform) around the central axis of the sliding rod, the sliding groove is provided with a movable sliding rail corresponding to the sliding limit blocks, and the left end and the right end of the movable sliding rail (namely, one end far away from the screening net and one end close to the screening net) are respectively provided with limit convex edges; the driving mechanism comprises a driving connecting rod, a rotating wheel, a driving wheel and a transmission belt, one end of the driving connecting rod is rotatably connected with one end of the sliding rod, which is positioned outside the screening box, and the other end of the driving connecting rod is rotatably connected with the outer ring of the rotating wheel; the outer wall of a rotating wheel of the screening assembly at the lowermost end is provided with rotating teeth, the lower end of the rotating wheel is provided with a driving wheel, the driving wheel is provided with one third of driving teeth corresponding to the rotating teeth, and the one third of driving teeth are meshed with the rotating teeth; the rotating wheels of two adjacent screening assemblies are connected through a transmission belt; two clean poles of double-end set up between two adjacent screening subassembly's the screening net for two upper and lower screening nets clean.

The first guide plate is fixedly arranged on the side wall of one end, located at the sliding groove, of the feeding hole, and is used for accurately conveying flour to the screening net; the lower end of the first guide plate is provided with a first cleaning brush head.

For further optimization, a second guide plate is arranged on the inner wall of the screening box, between two adjacent screening nets and corresponding to the first guide plate; and a second cleaning brush head is arranged at the lower end of the second guide plate.

Further optimized, the discharge hole is in a funnel shape with a large upper part and a small lower part.

Further optimization is carried out, the number of the screening assemblies is 2-5, and the pore diameters of the screening nets are reduced from top to bottom in sequence.

The screening net is further optimized, an annular limiting rib is arranged at one end, far away from the bottom of the concave part, of the sliding groove, an annular positioning edge is arranged at one end, close to the telescopic spring, of the screening net and corresponds to the annular limiting rib, and hard limiting of the fixed clamping plate on the screening net in the movement process is achieved through matching of the annular limiting rib and the annular positioning edge; and a rubber layer is arranged on the end face of one end, close to the annular limiting rib, of the annular positioning rib, so that the buffer is formed when the annular positioning rib collides with the annular limiting rib.

The screening net is further optimized, one end, far away from the telescopic spring, of the fixed clamping plate is located at the upper end and the lower end of the screening net and is rotatably connected with the cleaning roller through the roller frame, and the fixed clamping plate is used for cleaning the screening net in the sliding process.

Further optimization is carried out, and the number of the sliding limiting blocks is 4-8.

Preferably, the limiting convex edges at the left end and the right end of the movable slide rail are provided with a rubber layer at the end surface close to one end of the sliding limiting block, so as to provide buffering.

Further optimization is carried out, a rotating bracket is arranged on the outer wall of the screening box corresponding to the rotating wheel, and the rotating wheel is rotatably connected with the rotating bracket; the drive wheel passes through the drive support setting and is in screening case outer wall just the drive wheel drives through external drive device.

Further optimization is carried out, the double-end cleaning rod is arranged through the connecting support rod, the quantity of the double-end cleaning rod between the screening box inner wall and two adjacent screening nets is 2-5.

The utility model discloses has following technological effect:

the screening device provided by the application controls the driving wheel to operate through the driving device, one third of driving teeth is meshed with the rotating teeth to drive the rotating wheel to rotate, the sliding rod is pulled to move in the rotating process of the rotating wheel, so that the sliding rod can slide in the sliding groove, the central axis of the sliding rod is ensured not to deviate in the sliding process of the sliding rod through the matching of the sliding limiting block and the movable sliding rail, meanwhile, the sliding limiting block is matched with the limiting convex edge to realize the hard limiting of the sliding rod in the sliding groove, and the sliding rod drives the screening net to move, so that the extension spring is stretched; when one-third drive tooth and rotation tooth do not mesh, the smooth section of drive wheel corresponds with the rotation wheel this moment, because the elastic action of expanding spring leads to the reciprocating motion that the screening net was left right translation to sieve flour on it, the slide bar also is reciprocating sliding in the sliding tray simultaneously, produces the vibration when the spacing bead of slip stopper striking and more is favorable to the screening of flour. In the screening process, the double-head cleaning rod is cleaned with the first cleaning brush head and the second cleaning brush head screening net, so that flour is prevented from being agglomerated to block the screening net. Adopt multiunit screening subassembly and connect through the drive belt and rotate the wheel, realized grading, carry out the screening of the flour of different degrees in step, realize that the flour sieves becomes more meticulous, simplify the processing procedure of sieving many times, save labour productivity, improve the treatment effeciency of flour screening.

Drawings

Fig. 1 is a schematic structural diagram of a screening device in an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion of fig. 1.

Fig. 3 is a cross-sectional view taken along line C-C of fig. 2.

Fig. 4 is a partially enlarged view of fig. 1 taken along line B.

Fig. 5 is a sectional view taken along line D-D of fig. 4.

Fig. 6 is an enlarged view of a portion E of fig. 1.

100, a screening device body; 101. a feed inlet; 102. screening the box; 1021. a sliding groove; 10211. moving the slide rail; 10212. a limiting convex rib; 1022. rotating the bracket; 1023. a drive bracket; 1024. a first baffle; 10241. a first cleaning brush head; 1025. a second baffle; 10251. a second cleaning brush head; 103. a discharge port; 104. a collection box; 105. a double-ended cleaning rod; 1051. connecting the supporting rods; 200. a screen assembly; 21. fixing the clamping plate; 211. a sliding groove; 2111. an annular limiting rib; 212. cleaning the roller; 213. a roller frame; 22. a tension spring; 23. screening the net; 231. an annular positioning edge; 24. a slide bar; 241. a sliding limiting block; 25. a drive mechanism; 251. a drive link; 252. a rotating wheel; 2521. rotating the teeth; 253. a drive wheel; 2531. one third of the drive teeth; 254. a transmission belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1-6, a choice screening plant for flour, its characterized in that: the screening device comprises a screening device body 100, wherein the screening device body 100 comprises a feeding hole 101, a screening box 102, a discharging hole 103 and a collecting box 104, and the feeding hole 101 is formed in the top of the screening box 102 and used for sequentially feeding flour to be screened; the discharge port 103 is arranged at the bottom of the screening box 102, and one end of the discharge port 103, which is far away from the screening box 102, is arranged in the collection box 104, so that the collection of the screened flour is completed; the discharge port 103 is shaped like a funnel with a large top and a small bottom.

A plurality of screening assemblies 200 are sequentially arranged in the screening box 102 from top to bottom, and each screening assembly 200 comprises a fixed clamping plate 21, a telescopic spring 22, a screening net 23, a sliding rod 24 and a driving mechanism 25; the number of the screen assemblies 200 is 2-5 (2 in the figure), preferably 3, and the aperture of the screening net 23 is reduced from top to bottom. The fixed clamping plate 21 is arranged on the side wall of one side of the screening box 102, the middle part of the fixed clamping plate is provided with a sliding groove 211, one end of the screening net 23 is connected with the bottom of the concave part of the sliding groove 211 through a telescopic spring 22, and the upper end and the lower end of the screening net 23 are connected with the sliding groove 211 in a sliding way (as shown in figure 2); a sliding rod 24 is fixedly connected to the middle of one end of the sieving net 23 far away from the telescopic spring 22, a sliding groove 1021 penetrating through the side wall of the sieving box 102 is formed in the side wall of the sieving box 102 on the opposite side of the fixed clamping plate 21, one end of the sliding rod 24 far away from the sieving net 23 penetrates through the sliding groove 1021, the outer wall of the sliding rod 24 is slidably connected with the inner wall of the sliding groove 1021, a plurality of sliding limit blocks 241 are uniformly arranged on the outer wall of the sliding rod 24 and in the middle of the sliding groove 1021 around the central axis of the sliding rod 24 (when the telescopic spring 22 is in an original length state, i.e., does not deform), the sliding groove 1021 is provided with a movable sliding rail 10211 corresponding to the sliding limit blocks 241, and limit ribs 10212 are respectively arranged at the left end and the right end (i.e., one end far away from the sieving net 23 and one end close to the sieving net 23) (as shown in fig. 4); the number of the sliding stoppers 241 is 4 to 8, preferably 5 (as shown in fig. 5). The end faces of the limiting convex ridges 10212 at the left and right ends of the movable slide rail 10211, which are close to the sliding limiting block 241, are provided with rubber layers for providing buffering. The driving mechanism 25 comprises a driving connecting rod 251, a rotating wheel 252, a driving wheel 253 and a transmission belt 254, one end of the driving connecting rod 251 is rotatably connected with one end of the sliding rod 24 positioned at the outer side of the screening box 102, and the other end of the driving connecting rod 251 is rotatably connected with the outer ring of the rotating wheel 252; the outer wall of the rotary wheel 252 of the lowermost screen assembly 200 is provided with rotary teeth 2521 and the lower end of the rotary wheel 252 is provided with a driving wheel 253, the driving wheel 253 is provided with one third of driving teeth 2531 corresponding to the rotary teeth 2521 and one third of the driving teeth 2531 are meshed with the rotary teeth 2521 (as shown in fig. 6); the rotating wheels 252 of two adjacent screen assemblies 200 are connected by a belt 254; a double-headed cleaning bar 105 is provided between the screening nets 23 of two adjacent screen assemblies 200 for cleaning the upper and lower screening nets 23 (as shown in figure 1).

A first guide plate 1024 is fixedly arranged on the side wall of one end of the feed port 101, which is positioned at the sliding groove 1021, and is used for accurately conveying flour to the sieving net 23; the lower end of the first guide plate 1024 is provided with a first cleaning brush head 10241; a second guide plate 10252 is arranged on the inner wall of the screening box 102 and between two adjacent screening nets 23 and corresponds to the first guide plate 1024; the lower end of the second guide plate 1025 is provided with a second cleaning brush head 10251.

One end of the sliding groove 211, which is far away from the bottom of the recess, is provided with an annular limiting rib 2111, one end of the screening net 23, which is close to the extension spring 22, is provided with an annular positioning rib 231 corresponding to the annular limiting rib 2111, and the hard limiting of the fixed clamping plate 21 on the screening net 23 in the movement process is realized through the matching of the annular limiting rib 2111 and the annular positioning rib 231; a rubber layer is arranged on the end face of one end, close to the annular limiting rib 2111, of the annular positioning rib 231, so that buffering is achieved when the annular positioning rib 231 collides with the annular limiting rib 2111; one end of the fixed clamping plate 21, which is far away from the extension spring 22, is positioned at the upper end and the lower end of the sieving net 23 and is rotatably connected with a cleaning roller 212 through a roller frame 213, and is used for cleaning the sieving net 3 during the sliding process.

The outer wall of the screening box 102 is provided with a rotating bracket 1022 corresponding to the rotating wheel 252, and the rotating wheel 252 is rotatably connected with the rotating bracket 1022; the drive wheel 253 is disposed on an outer wall of the sifting box 102 by a drive bracket 1023 and the drive wheel 253 is driven by an external drive device.

The number of the double-head cleaning rods 105 arranged on the inner wall of the screening box 102 and between two adjacent screening nets 23 through the connecting support rod 1051 is 2-5, preferably 3 (as shown in fig. 1).

The working principle is as follows:

firstly, flour to be sieved is poured into the sieving box 102 through the feeding hole 101, and the flour to be sieved sequentially falls on the sieving net 23 through the first guide plate 1024 and the second guide plate 1025. Then the driving device is started to control the driving wheel 253 to rotate, the driving wheel 253 drives the rotating wheel 252 to rotate through the meshing of one third of the driving teeth 2531 and the rotating teeth 2521, the sliding rod 24 and the sieving net 23 are pulled by the driving connecting rod 251 to move towards the left side shown in fig. 1 in the rotating process of the rotating wheel 252, the telescopic spring 22 is stretched, the driving wheel 253 continues to rotate, when the one third of the driving teeth 2531 of the driving wheel 253 is separated from the rotating teeth 2521 of the rotating wheel 252 (namely, the smooth section of the driving wheel 253 corresponds to the rotating teeth 2521), the sliding rod 24 and the sieving net 23 rapidly move towards the right side shown in fig. 1 due to the elastic force of the telescopic spring 22, at the moment, due to the inertia effect, the sliding limiting stopper 241 impacts the limiting rib 10212 at the right side shown in fig. 4, the sliding rod 24 and the sieving net 23 vibrate and simultaneously the telescopic spring 22 compresses, the sieving net 23 vibrates to shake off the flour, the telescopic spring 22 compresses, the sieving net 23 causes the sieving net 23 to do reciprocating motion towards the left and right sides shown in fig. 1, Thereby forming a sifting of the flour on the sifting screen 23. In the screening process, the first cleaning brush head 10241, the second cleaning brush head 10251, the cleaning roller 212 and the double-head cleaning rod 105 respectively clean the screening net 23, so that meshes of the screening net 23 are prevented from being blocked by flour in the screening process; the elastic force of the extension spring 22 is gradually counteracted by the friction force, so that the left and right reciprocating range of the sliding rod 24 and the sieving net 23 is gradually reduced until one third of the driving teeth 2531 are re-engaged with the rotating teeth 2521, and the extension spring 22 is re-lengthened. The screened flour enters a collecting box 104 through a material port 103 to be collected, and large-particle flour is sequentially left on screening nets 23 at all levels and is subsequently collected by operators.

Having thus described embodiments of the present application, it will be appreciated by those skilled in the art that a variety of changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A choice screening plant for flour which characterized in that: the screening device comprises a screening device body (100), wherein the screening device body (100) comprises a feeding hole (101), a screening box (102), a discharging hole (103) and a collecting box (104), and the feeding hole (101) is formed in the top of the screening box (102); the discharge port (103) is arranged at the bottom of the screening box (102), and one end, far away from the screening box (102), of the discharge port (103) is arranged in the collecting box (104);

a plurality of screening assemblies (200) are sequentially arranged in the screening box (102) from top to bottom, and each screening assembly (200) comprises a fixed clamping plate (21), a telescopic spring (22), a screening net (23), a sliding rod (24) and a driving mechanism (25); the fixed clamping plate (21) is arranged on the side wall of one side of the screening box (102), a sliding groove (211) is formed in the middle of the fixed clamping plate, one end of the screening net (23) is connected with the bottom of the concave part of the sliding groove (211) through a telescopic spring (22), and the upper end and the lower end of the screening net (23) are connected with the sliding groove (211) in a sliding mode; the middle part of one end, far away from the telescopic spring (22), of the screening net (23) is fixedly connected with a sliding rod (24), the side wall of the screening box (102) at the opposite side of the fixed clamping plate (21) is provided with a sliding groove (1021) penetrating through the side wall of the screening box (102), one end, far away from the screening net (23), of the sliding rod (24) penetrates through the sliding groove (1021), the outer wall of the sliding rod (24) is in sliding connection with the inner wall of the sliding groove (1021), the outer wall of the sliding rod (24) and the middle position of the sliding groove (1021) are uniformly provided with a plurality of sliding limit blocks (241) around the central axis of the sliding rod (24), the sliding groove (1021) is provided with a movable slide rail (10211) corresponding to the sliding limit blocks (241), and the left end and the right end of the movable slide rail (10211) are respectively provided with limit convex ribs (10212); the driving mechanism (25) comprises a driving connecting rod (251), a rotating wheel (252), a driving wheel (253) and a transmission belt (254), one end of the driving connecting rod (251) is rotatably connected with one end of the sliding rod (24) which is positioned at the outer side of the screening box (102), and the other end of the driving connecting rod (251) is rotatably connected with the outer ring of the rotating wheel (252); the outer wall of the rotating wheel (252) of the lowest screening assembly (200) is provided with rotating teeth (2521), the lower end of the rotating wheel (252) is provided with a driving wheel (253), the driving wheel (253) is provided with one third of driving teeth (2531) corresponding to the rotating teeth (2521), and the one third of driving teeth (2531) are meshed with the rotating teeth (2521); the rotating wheels (252) of two adjacent screen assemblies (200) are connected through a transmission belt (254); a double-head cleaning rod (105) is arranged between the screening nets (23) of two adjacent screening assemblies (200).

2. A selection screen for flour, as claimed in claim 1, characterized in that: a first guide plate (1024) is fixedly arranged on the side wall of the feed port (101) at one end of the sliding groove (1021); the lower end of the first guide plate (1024) is provided with a first cleaning brush head (10241).

3. A selection screening device for flour, according to claim 2, characterized in that: a second guide plate (1025) is arranged on the inner wall of the screening box (102) and between two adjacent screening nets (23) and corresponds to the first guide plate (1024); the lower end of the second guide plate (1025) is provided with a second cleaning brush head (10251).

4. A selection screen for flour, as claimed in claim 1, characterized in that: the discharge hole (103) is in a funnel shape with a large upper part and a small lower part.

5. A selection screen for flour, as claimed in claim 1, characterized in that: screening subassembly (200) are 2 ~ 5, just the aperture of screening net (23) reduces from top to bottom in proper order.

6. A selection screen for flour, as claimed in claim 1, characterized in that: an annular limiting rib (2111) is arranged at one end of the sliding groove (211) far away from the bottom of the sunken part of the sliding groove, and an annular positioning rib (231) is arranged at one end of the screening net (23) close to the extension spring (22) and corresponding to the annular limiting rib (2111); and a rubber layer is arranged on the end face of one end, close to the annular limiting rib (2111), of the annular positioning rib (231).

7. A selection screen for flour, as claimed in claim 1, characterized in that: one end of the fixed clamping plate (21) far away from the telescopic spring (22) is positioned at the upper end and the lower end of the screening net (23) and is rotatably connected with a cleaning roller (212) through a roller frame (213).

8. A selection screen for flour, as claimed in claim 1, characterized in that: the outer wall of the screening box (102) is provided with a rotating bracket (1022) corresponding to the rotating wheel (252), and the rotating wheel (252) is rotationally connected with the rotating bracket (1022); the driving wheel (253) is arranged on the outer wall of the screening box (102) through a driving support (1023) and the driving wheel (253) is driven through an external driving device.

9. A selection screen for flour, as claimed in claim 1, characterized in that: clean pole of double-end (105) are in through linking bridge pole (1051) the quantity of the clean pole of double-end between screening case (102) inner wall and two adjacent screening nets (23) is 2 ~ 5.