Flour feeding device for preparing soft bread

Abstract

The invention is applicable to the technical field of flour feeding, and provides a flour feeding device for soft bread preparation, which comprises a feeding box and further comprises a cover plate rotationally connected to the upper end of the feeding box, a first telescopic lever rotationally connected to the side wall of the feeding box, and the telescopic end of the first telescopic lever is rotationally connected to the cover plate; a lifting plate is vertically and slidably connected into the feeding box, a second telescopic lever is fixed to the inner wall of the feeding box, and the telescopic end of the second telescopic lever is connected with the lower end of the lifting plate. The middle of the lifting plate is rotationally connected with an overturning plate, the overturning plate is provided with a hook claw assembly, the hook claw assembly is used for hooking flour bags to the overturning plate, and the lifting plate is provided with a rotating assembly. Through vertical movement of the lifting plate, air for mixing flour between the lifting plate and the cover plate can be exhausted to the lower end of the lifting plate, so that the problem that the flour overflows during flour feeding is avoided, the flour is fully fed into the feeding box, the flour is fully used, the situation that the flour is mixed in the air is avoided, and the safety of bread production is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of flour feeding, and particularly relates to a flour feeding device for preparing soft bread. Background Art

[0002] Bread is a food made by grinding grains (usually wheat) into flour and heating. It mainly uses wheat flour as the raw material, and yeast, eggs, oils and fats, sugar, salt, etc. as auxiliary materials, and is made into a dough by adding water. In the existing bread production, in the bread production line, flour is put into a feeding device, and the feeding device supplies flour according to a ratio.

[0003] When feeding flour, workers need to open the flour packaging bag and then pour the flour into the flour feeding hopper. When feeding flour, the flour particles are small and light in weight, and are easily blown up by the wind or scattered due to the impact force during feeding, flying into the air. In addition, the flour has good fluidity and is easy to overflow during the feeding process. Especially when the feeding speed is increased, the accumulated flour will suddenly rush out, causing scattering.

[0004] The flour flying into the air has high adsorbability and can adsorb harmful substances in the air. Long-term inhalation of flour dust will irritate the respiratory tract. Long-term and large-scale inhalation of flour may lead to pneumoconiosis, which will affect the health of workers. Moreover, when the flour dust reaches a certain concentration in the air, it may cause an explosion when encountering a fire source, posing a safety hazard. Summary of the Invention

[0005] The purpose of the embodiments of the invention is to provide a flour feeding device for preparing soft bread, aiming at solving the problems that when feeding flour, the flour is easily scattered into the air, posing a safety hazard, affecting the health of workers, and causing flour waste.

[0006] The invention is realized as follows: A flour feeding device for preparing soft bread includes a feeding box, and further includes: a cover plate rotatably connected to the upper end of the feeding box, a telescopic rod one rotatably connected to the side wall of the feeding box, and the telescopic end of the telescopic rod one is rotatably connected to the cover plate; a lifting plate is vertically slidably connected in the feeding box, a telescopic rod two is fixed on the inner wall of the feeding box, and the telescopic end of the telescopic rod two is connected to the lower end of the lifting plate; a turning plate is rotatably connected to the middle of the lifting plate, a claw assembly is arranged on the turning plate, and the claw assembly is used for hooking the flour bag on the turning plate. A rotating assembly is arranged on the lifting plate, and the rotating assembly is used for driving the turning plate to rotate. A one-way assembly is arranged on the lifting plate, and the one-way assembly enables the gas at the upper end of the lifting plate to only flow downward. A filter screen is installed on the side wall of the feeding box.

[0007] Further technical solution: The rotating assembly includes a motor 1 fixed to the lower end of the lifting plate. The rotating end of the motor 1 is fixed with a gear 1. The rotating axis of the flipping plate is fixed with a gear 2. The gear 2 meshes with the gear 1.

[0008] Further technical solution: The flipping plate is a loop-shaped plate. Guide grooves 1 are arranged on two opposite inner walls of the flipping plate. Two sliding plates are slidably connected in the two guide grooves 1. The ends of the two sliding plates are rotatably connected with rotating plates. The ends of the two rotating plates are rotatably connected. Side baffles are fixed on both sides of the rotating plates at the upper end of the flipping plate. A driving assembly is arranged on the flipping plate. The driving assembly is used to drive the two rotating plates to rotate in opposite directions.

[0009] Further technical solution: The driving assembly includes a fixed frame fixed to the lower end of the flipping plate. A guide groove 3 is arranged on the fixed frame. A guide block 2 is slidably connected in the guide groove 3. A fixed shaft is fixed on the guide block 2. One end of the fixed shaft is rotatably connected with two connecting rods. The ends of the two connecting rods are rotatably connected to the two rotating plates. A turntable is rotatably connected to the fixed frame. An annular groove is arranged at one end of the turntable. The other end of the fixed shaft is slidably connected in the annular groove. The annular groove and the turntable are arranged with different centers. A motor 2 is fixed on the fixed frame. The rotating end of the motor 2 is connected to the center of the turntable.

[0010] Further technical solution: Claw assemblies are arranged on both rotating plates. The claw assembly includes two annular claws rotatably connected to the rotating plate. The annular claw is arranged as a semi-ring. A guide groove 2 is arranged at the lower end of the rotating plate. A guide block 1 is slidably connected in the guide groove 2. A telescopic rod 3 is fixed on the rotating plate. The telescopic end of the telescopic rod 3 is connected to the guide block 1. A long groove is arranged on the side wall of the guide block 1. A transmission sliding shaft is fixed on the side wall of the annular claw. The transmission sliding shaft is slidably connected in the long groove.

[0011] Further technical solution: The one-way assembly includes a through hole arranged on the lifting plate. A sealing plate is rotatably connected below the through hole. A torsion spring is fixed at the rotating axis of the sealing plate. The end of the torsion spring is fixed on the lifting plate.

[0012] Further technical solution: A sliding housing slides vertically on the lifting plate. A tension spring is fixed to the lower part of the sliding housing. The end of the tension spring is fixed to the lower end of the lifting plate. A plurality of air outlet holes are arranged at the upper part of the sliding housing. The sliding housing is connected with an air supply assembly. The air supply assembly is used to supply air into the sliding housing.

[0013] Further technical solution: The air supply component includes a protective housing fixed to the upper end of the feeding box. A telescopic airbag is fixed inside the protective housing. The lower end of the telescopic airbag extends out of the protective housing and is fixed to the upper end of the lifting plate. A check valve I is installed on the upper part of the telescopic airbag. A check valve II is installed in the air outlet hole. The telescopic airbag is communicated with the sliding housing through a connecting hose.

[0014] Further technical solution: A gas guiding housing I is fixed at the lower end of the lifting plate at the through hole. A gas guiding housing II is fixed on the inner wall of the feeding box. The filter screen is located at the lower end of the gas guiding housing II. The gas guiding housing II is slidably connected inside the gas guiding housing I.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By moving the lifting plate up and down, the air mixed with flour between the lifting plate and the cover plate can be discharged to the lower end of the lifting plate, thereby avoiding the problem of flour overflow during flour feeding, enabling the flour to be fully put into the feeding box, making full use of the flour, avoiding the mixing of flour in the air, and improving the safety of bread production.

[0017] 2. When the guide block II and the fixed shaft drive the flip plate to move, the fixed shaft pushes the two rotating plates to rotate in opposite directions through the connecting rod. The rotating connection ends of the two rotating plates move away from the flip plate, thereby causing the two rotating plates to support the flour bag into a V shape, thus expanding the opening of the flour bag and facilitating the outflow of flour, thereby improving the speed of flour feeding. By the reciprocating movement of the fixed shaft and the guide block II, the flour bag can be shaken to promote the outflow of flour, thereby further improving the speed of flour feeding.

[0018] 3. When the lifting plate moves upward and the two rotating plates drive the flour bag to shake, the flour bag shakes off the flour, and the air flow blows away the shaken-off flour in time. When the flour bag shakes, the contact between the air flow and the flour can be increased, and the remaining flour on the flour bag can be further blown off.

[0019] 4. When the air above the lifting plate moves downward through the through hole, under the guiding action of the gas guiding housing I and the gas guiding housing II, the air flows over the surface of the filter screen, thereby blowing off the flour accumulated on the surface of the filter screen, and thus avoiding the accumulation of flour on the filter screen and affecting the air permeability of the filter screen.

[0020] 5. The air discharged from the air outlet hole blows horizontally above the lifting plate, thereby blowing the flour above the lifting plate and the remaining flour on the flour bag towards the through hole, thereby cleaning the upper end of the lifting plate and the flour bag. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a flour feeding device for preparing soft bread provided by the present invention;

[0022] Figure 2 The internal structure schematic diagram of the feeding box provided by the present invention Figure 1 in the present invention;

[0023] Figure 3 The internal structure schematic diagram of the feeding box provided by the present invention Figure 1 The structure schematic diagram after removing the feeding box and the cover plate in the present invention;

[0024] Figure 4 The structure schematic diagram of the upward viewing inclination angle provided by the present invention Figure 3 in the present invention;

[0025] Figure 5 The structure schematic diagram of the lifting plate provided by the present invention Figure 3 in the present invention;

[0026] Figure 6 The structure schematic diagram of the flipping plate provided by the present invention Figure 3 in the present invention;

[0027] Figure 7 The structure schematic diagram of the one-way component provided by the present invention Figure 3 in the present invention;

[0028] Figure 8 The structure schematic diagram of the sliding plate and the rotating plate provided by the present invention Figure 3 in the present invention;

[0029] Figure 9 The enlarged structure schematic diagram of A provided by the present invention Figure 8 in the present invention;

[0030] Figure 10 The structure schematic diagram of the claw component provided by the present invention Figure 8 in the present invention;

[0031] Figure 11 The structure schematic diagram of the annular claw provided by the present invention Figure 10 in the present invention;

[0032] Figure 12 The structure schematic diagram of the first guide block provided by the present invention Figure 10 in the present invention;

[0033] Figure 13 The structure schematic diagram of the air supply component provided by the present invention Figure 2 in the present invention.

[0034] In the accompanying drawings: 101, feeding box; 102, cover plate; 103, first telescopic rod; 104, lifting plate; 105, second telescopic rod; 106, turning plate; 107, first guiding groove; 108, sliding plate; 109, rotating plate; 110, side baffle; 111, filter screen; 2, rotating assembly; 201, first motor; 202, first gear; 203, second gear; 3, one-way assembly; 301, through hole; 302, sealing plate; 303, torsion spring; 4, claw assembly; 401, annular claw; 402, first guiding block; 403, third telescopic rod; 404, transmission sliding shaft; 405, long slot; 406, second guiding groove; 5, driving assembly; 501, fixing frame; 502, third guiding groove; 503, second guiding block; 504, fixing shaft; 505, connecting rod; 506, second motor; 507, turntable; 508, annular groove; 601, sliding housing; 602, tension spring; 603, air outlet hole; 7, air supply assembly; 701, protective housing; 702, telescopic airbag; 703, first one-way valve; 704, second one-way valve; 705, connecting hose; 801, first air guiding housing; 802, second air guiding housing. Detailed implementation manners

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0037] As Figures 1 - 6 shown, a flour feeding device for soft bread preparation provided by an embodiment of the present invention includes a feeding box 101, and further includes: a cover plate 102 rotatably connected to the upper end of the feeding box 101, a first telescopic rod 103 rotatably connected to the side wall of the feeding box 101, and the telescopic end of the first telescopic rod 103 is rotatably connected to the cover plate 102; a lifting plate 104 is vertically slidably connected in the feeding box 101, a second telescopic rod 105 is fixed to the inner wall of the feeding box 101, and the telescopic end of the second telescopic rod 105 is connected to the lower end of the lifting plate 104; a turning plate 106 is rotatably connected to the middle of the lifting plate 104, a claw assembly 4 is arranged on the turning plate 106, the claw assembly 4 is used to hook the flour bag on the turning plate 106, a rotating assembly 2 is arranged on the lifting plate 104, the rotating assembly 2 is used to drive the turning plate 106 to rotate, a one-way assembly 3 is arranged on the lifting plate 104, and the one-way assembly 3 enables the gas at the upper end of the lifting plate 104 to only flow downward, and a filter screen 111 is installed on the side wall of the feeding box 101.

[0038] In an embodiment of the present invention, when flour is fed, the first telescopic rod 103 contracts, and the first telescopic rod 103 drives the cover plate 102 to rotate upward and open the upper end of the feeding box 101. Workers place the bagged flour on the turning plate 106 and use a blade to cut open the top of the bagged flour. The second telescopic rod 105 contracts, and the second telescopic rod 105 drives the lifting plate 104 to move downward. The excess gas in the lower part of the feeding box 101 is discharged from the filter screen 111, thereby stabilizing the air pressure in the lower part of the feeding box 101 and preventing the discharge amount at the lower end of the feeding box 101 from increasing due to the increase in pressure in the lower part of the feeding box 101. The first telescopic rod 103 extends, and the first telescopic rod 103 drives the cover plate 102 to rotate downward and close the upper end of the feeding box 101. The claw assembly 4 hooks the flour bag on the turning plate 106. The rotating assembly 2 drives the turning plate 106 to rotate. The turning plate 106 drives the bagged flour to rotate downward. The opening of the bagged flour faces downward and the flour is poured out. After the flour is poured out, the rotating assembly 2 drives the turning plate 106 to reverse. The turning plate 106 drives the flour bag upward. The claw assembly 4 releases the flour bag. The second telescopic rod 105 extends, and the second telescopic rod 105 drives the lifting plate 104 to move upward. The air mixed with flour above the lifting plate 104 flows to the lower part of the lifting plate 104 through the one-way assembly 3 until the upper end of the lifting plate 104 contacts the cover plate 102. At this time, the air at the upper end of the lifting plate 104 is emptied. The first telescopic rod 103 contracts, and the first telescopic rod 103 drives the cover plate 102 to rotate upward and open the upper end of the feeding box 101. The packaging bag is removed, and one-time feeding of bagged flour is completed. By moving the lifting plate 104 up and down, the present invention can discharge the air mixed with flour between the lifting plate 104 and the cover plate 102 to the lower end of the lifting plate 104, thereby avoiding the problem of flour overflow during flour feeding, enabling the flour to be fully put into the feeding box 101, making full use of the flour, preventing the mixture of flour in the air, and improving the safety of bread production.

[0039] As Figure 2 and Figure 6 shown, as a preferred embodiment of the present invention, the rotating assembly 2 includes a first motor 201 fixed to the lower end of the lifting plate 104. The rotating end of the first motor 201 is fixed with a first gear 202. A second gear 203 is fixed at the rotation axis of the turning plate 106. The second gear 203 meshes with the first gear 202.

[0040] In an embodiment of the present invention, the first motor 201 drives the first gear 202 to rotate. The first gear 202 drives the second gear 203 to rotate. The second gear 203 drives the turning plate 106 to rotate.

[0041] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 andFigure 9 As shown, as a preferred embodiment of the present invention, the flipping plate 106 is a U-shaped plate. Guide grooves 107 are provided on two opposite inner walls of the flipping plate 106. Sliding plates 108 are slidably connected in the two guide grooves 107. Rotating plates 109 are rotatably connected to the ends of the two sliding plates 108. The ends of the two rotating plates 109 are rotatably connected. Side baffles 110 are fixed on both sides of the rotating plates 109 at the upper end of the flipping plate 106. A driving assembly 5 is provided on the flipping plate 106. The driving assembly 5 is used to drive the two rotating plates 109 to rotate in opposite directions; the driving assembly 5 includes a fixing frame 501 fixed to the lower end of the flipping plate 106. A guide groove 502 is provided on the fixing frame 501. A guide block 503 is slidably connected in the guide groove 502. A fixing shaft 504 is fixed on the guide block 503. One end of the fixing shaft 504 is rotatably connected to two connecting rods 505. The ends of the two connecting rods 505 are rotatably connected to the two rotating plates 109. A turntable 507 is rotatably connected to the fixing frame 501. An annular groove 508 is provided at one end of the turntable 507. The other end of the fixing shaft 504 is slidably connected in the annular groove 508. The annular groove 508 and the turntable 507 are not concentrically arranged. A motor 506 is fixed on the fixing frame 501. The rotating end of the motor 506 is connected to the center of the turntable 507.

[0042] In the embodiment of the present invention, when the flipping plate 106 drives the bagged flour to rotate downward and the opening of the bagged flour faces downward to pour out the flour, the motor 506 drives the turntable 507. Under the guiding action of the guide groove 502, the rotating turntable 507 drives the fixing shaft 504 to move up and down through the annular groove 508. The fixing shaft 504 drives the guide block 503 to move up and down. When the guide block 503 and the fixing shaft 504 move towards the flipping plate 106, the fixing shaft 504 pushes the two rotating plates 109 to rotate in opposite directions through the connecting rods 505. The rotatable connection ends of the two rotating plates 109 move away from the flipping plate 106, so that the two rotating plates 109 expand the flour bag into a V shape, thereby expanding the opening of the flour bag and facilitating the outflow of flour, thus improving the speed of flour feeding. When the guide block 503 and the fixing shaft 504 move away from the flipping plate 106, the fixing shaft 504 pushes the two rotating plates 109 to reverse through the connecting rods 505. The rotatable connection ends of the two rotating plates 109 move closer to the flipping plate 106, so that the two rotating plates 109 restore the shape of the flour bag. Through the reciprocating movement of the fixing shaft 504 and the guide block 503, the flour bag can be shaken to promote the outflow of flour, thereby further improving the speed of flour feeding.

[0043] As Figure 3 、 Figure 4 、 Figure 10 、 Figure 11 andFigure 12 As shown in the figure, as a preferred embodiment of the present invention, hook assemblies 4 are provided on both of the rotating plates 109. The hook assembly 4 includes two annular hooks 401 rotatably connected to the rotating plate 109. The annular hooks 401 are semi-circularly arranged. A second guiding groove 406 is provided at the lower end of the rotating plate 109. A first guiding block 402 is slidably connected in the second guiding groove 406. A third telescopic rod 403 is fixed to the rotating plate 109. The telescopic end of the third telescopic rod 403 is connected to the first guiding block 402. A long groove 405 is provided on the side wall of the first guiding block 402. A transmission sliding shaft 404 is fixed to the side wall of the annular hook 401. The transmission sliding shaft 404 is slidably connected in the long groove 405.

[0044] In the embodiment of the present invention, in the initial state, the annular hooks 401 are retracted into the rotating plate 109, and the third telescopic rod 403 is in the extended state. When it is necessary to hook the flour bag, the third telescopic rod 403 contracts. Under the guiding action of the second guiding groove 406, the third telescopic rod 403 drives the first guiding block 402 to move. The first guiding block 402 pushes the transmission sliding shaft 404 to move through the long groove 405. The transmission sliding shaft 404 drives the annular hook 401 to rotate. The annular hook 401 extends out of the rotating plate 109 and hooks the flour bag. Then, under the action of the four annular hooks 401, the flour bag is fixed on the two rotating plates 109. When the third telescopic rod 403 extends, under the guiding action of the second guiding groove 406, the third telescopic rod 403 drives the first guiding block 402 to move in the reverse direction. The first guiding block 402 pushes the transmission sliding shaft 404 to move in the reverse direction through the long groove 405. The transmission sliding shaft 404 drives the annular hook 401 to rotate in the reverse direction. The annular hook 401 retracts into the rotating plate 109, and then the four annular hooks 401 release the flour bag. Through the arrangement of the two side baffles 110, when the two rotating plates 109 rotate, the upper and lower ends of the lifting plate 104 can be made non-communication.

[0045] As Figure 3 、 Figure 4 、 Figure 5 and Figure 6 shown, as a preferred embodiment of the present invention, the one-way assembly 3 includes a through hole 301 provided on the lifting plate 104. A sealing plate 302 is rotatably connected below the through hole 301. A torsion spring 303 is fixed at the rotation axis center of the sealing plate 302. The end of the torsion spring 303 is fixed to the lifting plate 104.

[0046] In the embodiment of the present invention, in the initial state, the torsion spring 303 drives the sealing plate 302 to rotate upward, and the sealing plate 302 blocks the lower end of the through hole 301. When the lifting plate 104 moves upward, the air pressure above the lifting plate 104 becomes larger. The high-pressure air overcomes the elastic force of the torsion spring 303 and pushes the sealing plate 302 downward, thereby opening the through hole 301. The air above the lifting plate 104 moves downward through the through hole 301.

[0047] As Figures 1 - 13 shown, as a preferred embodiment of the present invention, a sliding housing 601 is vertically slidable on the lifting plate 104. A tension spring 602 is fixed to the lower part of the sliding housing 601, and the end of the tension spring 602 is fixed to the lower end of the lifting plate 104. A plurality of air outlets 603 are provided in the upper part of the sliding housing 601. The sliding housing 601 is connected to a gas supply assembly 7, and the gas supply assembly 7 is used to supply gas into the sliding housing 601. The gas supply assembly 7 includes a protective housing 701 fixed to the upper end of the feeding box 101. A telescopic airbag 702 is fixed inside the protective housing 701. The lower end of the telescopic airbag 702 extends out of the protective housing 701 and is fixed to the upper end of the lifting plate 104. A one-way valve 703 is installed on the upper part of the telescopic airbag 702, and a one-way valve 704 is installed in the air outlet 603. The telescopic airbag 702 is communicated with the sliding housing 601 through a connecting hose 705.

[0048] In the embodiment of the present invention, when the lifting plate 104 moves downward, the lifting plate 104 pulls the telescopic airbag 702 apart, and the air pressure inside the telescopic airbag 702 decreases. External air enters the telescopic airbag 702 through the one-way valve 703. When the lifting plate 104 moves upward, the lifting plate 104 cooperates with the protective housing 701 to squeeze the telescopic airbag 702. The air inside the telescopic airbag 702 enters the sliding housing 601 through the connecting hose 705. The air inside the sliding housing 601 is discharged from the one-way valve 704 and the air outlet 603. The air discharged from the air outlet 603 blows horizontally above the lifting plate 104, and then blows the flour above the lifting plate 104 and the remaining flour on the flour bag towards the through hole 301, thereby cleaning the upper end of the lifting plate 104 and the flour bag;

[0049] When the lifting plate 104 moves upward and the two rotating plates 109 drive the flour bag to vibrate, the flour bag shakes off the flour, and the air flow blows away the shaken-off flour in time. When the flour bag vibrates, the contact between the air flow and the flour can be increased, and the remaining flour on the flour bag can be further blown off;

[0050] Until the upper end of the sliding housing 601 contacts the lower end of the protective housing 701, the sliding housing 601 cannot continue to move upward. The lifting plate 104 continues to move upward, and the tension spring 602 is stretched until the upper end of the sliding housing 601 coincides with the upper end of the lifting plate 104. At this time, the upper end of the lifting plate 104 is a complete plane, which is convenient for placing the flour bag on the two rotating plates 109.

[0051] As Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, as a preferred embodiment of the present invention, an air guide shell one 801 is fixed at the lower end of the lifting plate 104 at the through hole 301, an air guide shell two 802 is fixed on the inner wall of the feeding box 101, the filter screen 111 is located at the lower end of the air guide shell two 802, and the air guide shell two 802 is slidably connected in the air guide shell one 801.

[0052] In the embodiment of the present invention, when the air above the lifting plate 104 moves downward through the through hole 301, under the guiding action of the air guide shell one 801 and the air guide shell two 802, the air flows over the surface of the filter screen 111, thereby blowing off the flour accumulated on the surface of the filter screen 111, and thus avoiding the accumulation of flour on the filter screen 111 and affecting the air permeability of the filter screen 111.

[0053] In the above embodiment of the present invention, a flour feeding device for soft bread preparation is provided. When feeding flour, the first telescopic rod 103 contracts, and the first telescopic rod 103 drives the cover plate 102 to rotate upward and open the upper end of the feeding box 101. Workers place the bagged flour on the turning plate 106 and cut open the top of the bagged flour with a blade. The second telescopic rod 105 contracts, and the second telescopic rod 105 drives the lifting plate 104 to move downward. The excess gas in the lower part of the feeding box 101 is discharged from the filter screen 111, thereby stabilizing the air pressure in the lower part of the feeding box 101 and avoiding an increase in the discharge amount at the lower end of the feeding box 101 due to an increase in the pressure in the lower part of the feeding box 101. The first telescopic rod 103 extends, and the first telescopic rod 103 drives the cover plate 102 to rotate downward and close the upper end of the feeding box 101;

[0054] The third telescopic rod 403 contracts. Under the guiding action of the second guiding groove 406, the third telescopic rod 403 drives the first guiding block 402 to move. The first guiding block 402 pushes the transmission sliding shaft 404 to move through the long groove 405. The transmission sliding shaft 404 drives the annular claw 401 to rotate. The annular claw 401 extends out of the rotating plate 109 and hooks the flour bag. Thus, under the action of the four annular claws 401, the flour bag is fixed on the two rotating plates 109. The first motor 201 drives the first gear 202 to rotate. The first gear 202 drives the second gear 203 to rotate. The second gear 203 drives the turning plate 106 to rotate. The turning plate 106 drives the bagged flour to rotate downward. The opening of the bagged flour faces downward and the flour is poured out;

[0055] The second motor 506 drives the turntable 507. Under the guiding action of the third guiding groove 502, the rotating turntable 507 drives the fixed shaft 504 to move up and down through the annular groove 508. The fixed shaft 504 drives the second guiding block 503 to move up and down. When the second guiding block 503 and the fixed shaft 504 move towards the turning plate 106, the fixed shaft 504 pushes the two rotating plates 109 to rotate in opposite directions through the connecting rod 505. The rotating connection ends of the two rotating plates 109 move away from the turning plate 106, thereby making the two rotating plates 109 stretch the flour bag into a V shape, thus expanding the opening of the flour bag to facilitate the outflow of flour, thereby improving the speed of flour feeding. When the second guiding block 503 and the fixed shaft 504 move away from the turning plate 106, the fixed shaft 504 pushes the two rotating plates 109 to rotate in reverse through the connecting rod 505. The rotating connection ends of the two rotating plates 109 move closer to the turning plate 106, thereby making the two rotating plates 109 restore the shape of the flour bag. Through the reciprocating movement of the fixed shaft 504 and the second guiding block 503, the flour bag can be shaken to promote the outflow of flour, thereby further improving the speed of flour feeding;

[0056] After the flour is poured out, the rotating assembly 2 drives the turning plate 106 to rotate in reverse. The turning plate 106 drives the flour bag upwards. The second telescopic rod 105 extends. The second telescopic rod 105 drives the lifting plate 104 to move upwards. The air mixed with flour above the lifting plate 104 flows to the lower part of the lifting plate 104 through the one-way assembly 3. When the lifting plate 104 moves upwards, the lifting plate 104 cooperates with the protective housing 701 to squeeze the telescopic airbag 702. The air in the telescopic airbag 702 enters the sliding housing 601 through the connecting hose 705. The air in the sliding housing 601 is discharged from the one-way valve II 704 and the air outlet hole 603. The air discharged from the air outlet hole 603 blows horizontally above the lifting plate 104, thereby blowing the flour above the lifting plate 104 and the remaining flour on the flour bag towards the through hole 301, thereby cleaning the upper end of the lifting plate 104 and the flour bag. When the lifting plate 104 moves upwards and the two rotating plates 109 drive the flour bag to shake, the flour bag shakes off the flour. The air flow blows away the shaken-off flour in time. Moreover, when the flour bag shakes, the contact between the air flow and the flour can be increased to further blow off the remaining flour on the flour bag;

[0057] The third telescopic rod 403 extends. Under the guiding action of the second guiding groove 406, the third telescopic rod 403 drives the first guiding block 402 to move in the reverse direction. The first guiding block 402 pushes the transmission sliding shaft 404 to move in the reverse direction through the long groove 405. The transmission sliding shaft 404 drives the annular claw 401 to rotate in reverse. The annular claw 401 retracts into the rotating plate 109, thereby making the four annular claws 401 release the flour bag. After the upper end of the lifting plate 104 contacts the cover plate 102, at this time, the air at the upper end of the lifting plate 104 is emptied. The first telescopic rod 103 contracts. The first telescopic rod 103 drives the cover plate 102 to rotate upwards and open the upper end of the feeding box 101, and the packaging bag is taken off, thus completing one-time feeding of bagged flour.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flour feeding device for soft bread preparation, including a feeding box, characterized in that, Further included are: A cover plate rotatably connected to the upper end of the feeding box. One end of a first telescopic rod is rotatably connected to the side wall of the feeding box, and the telescopic end of the first telescopic rod is rotatably connected to the cover plate. A lifting plate is vertically slidably connected inside the feeding box. A second telescopic rod is fixed to the inner wall of the feeding box, and the telescopic end of the second telescopic rod is connected to the lower end of the lifting plate. A turning plate is rotatably connected to the middle of the lifting plate. A claw assembly is arranged on the turning plate and is used to hook the flour bag on the turning plate. A rotating assembly is arranged on the lifting plate and is used to drive the turning plate to rotate. A one-way assembly is arranged on the lifting plate, and the one-way assembly enables the gas at the upper end of the lifting plate to only flow downward. A filter screen is installed on the side wall of the feeding box.

2. The flour feeding device for soft bread preparation according to claim 1, wherein, The rotating assembly includes a first motor fixed to the lower end of the lifting plate. The rotating end of the first motor is fixed with a first gear. A second gear is fixed at the rotation axis of the turning plate, and the second gear meshes with the first gear.

3. The flour feeding device for soft bread preparation according to claim 1, characterized in that, The turning plate is a U-shaped plate. Guide grooves are respectively arranged on two opposite inner walls of the turning plate. A sliding plate is slidably connected in each of the two guide grooves. The ends of the two sliding plates are respectively rotatably connected with a rotating plate. The ends of the two rotating plates are rotatably connected. Side baffles are respectively fixed on both sides of the rotating plate at the upper end of the turning plate. A driving assembly is arranged on the turning plate and is used to drive the two rotating plates to rotate in opposite directions.

4. The flour feeding device for soft bread preparation according to claim 3, characterized in that, The driving assembly includes a fixing frame fixed to the lower end of the turning plate. A third guide groove is arranged on the fixing frame. A second guide block is slidably connected in the third guide groove. A fixed shaft is fixed to the second guide block. One end of the fixed shaft is rotatably connected with two connecting rods. The ends of the two connecting rods are respectively rotatably connected to the two rotating plates. A turntable is rotatably connected to the fixing frame. An annular groove is arranged at one end of the turntable. The other end of the fixed shaft is slidably connected in the annular groove. The annular groove and the turntable are not concentric. A second motor is fixed to the fixing frame, and the rotating end of the second motor is connected to the axis of the turntable.

5. The flour feeding device for soft bread preparation according to claim 3, characterized in that, Claw assemblies are respectively arranged on the two rotating plates. The claw assembly includes two annular claws rotatably connected to the rotating plate. The annular claw is in a semi-ring shape. A second guide groove is arranged at the lower end of the rotating plate. A first guide block is slidably connected in the second guide groove. A third telescopic rod is fixed to the rotating plate, and the telescopic end of the third telescopic rod is connected to the first guide block. A long groove is arranged on the side wall of the first guide block. A transmission sliding shaft is fixed to the side wall of the annular claw, and the transmission sliding shaft is slidably connected in the long groove.

6. The flour feeding device for soft bread preparation according to claim 3, characterized in that, The one-way assembly includes a through hole arranged on the lifting plate. A sealing plate is rotatably connected below the through hole. A torsion spring is fixed at the rotation axis of the sealing plate, and the end of the torsion spring is fixed to the lifting plate.

7. The flour feeding device for soft bread preparation according to claim 6, characterized in that, A sliding housing is vertically slidable on the lifting plate. A tension spring is fixed to the lower part of the sliding housing, and the end of the tension spring is fixed to the lower end of the lifting plate. A plurality of air outlet holes are arranged at the upper part of the sliding housing. The sliding housing is connected with an air supply assembly, and the air supply assembly is used to supply air into the sliding housing.

8. The flour feeding device for soft bread preparation according to claim 7, characterized in that, The air supply assembly includes a protective housing fixed to the upper end of the feeding box. A telescopic airbag is fixed inside the protective housing. The lower end of the telescopic airbag extends out of the protective housing and is fixed to the upper end of the lifting plate. A first one-way valve is installed on the upper part of the telescopic airbag. A second one-way valve is installed in the air outlet hole. The telescopic airbag and the sliding housing are communicated through a connecting hose.

9. The flour feeding device for soft bread preparation according to claim 7, wherein, At the lower end of the lifting plate, an air guide shell I is fixed at the through hole. An air guide shell II is fixed on the inner wall of the feeding box. The filter screen is located at the lower end of the air guide shell II. The air guide shell II is slidably connected within the air guide shell I.

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