Automatic frying bean curd stick machine

Abstract

The present invention belongs to the field of food production and processing equipment, and is specifically an automatic frying bean curd stick machine. An automatic frying bean curd stick machine, a support assembly 100, a push assembly 200, a frying hanger assembly 300, upper and lower frying assemblies 400, an air inlet assembly 500, an oil return assembly 600, upper and lower material removal assemblies 700, and bean curd sticks 800; characterized in that the oil return assembly 600 is installed at a through hole position in the middle of a frame 101 of the support assembly 100, and the oil return assembly 600 is divided into three layers, namely an upper wave plate 601, a middle sedimentation plate 605, and a bottom inclined plate 618; the upper wave plate 601 and the middle sedimentation plate 605 are fixed together and can reciprocate together; the bottom inclined plate 618 is detachably installed on the frame 101 of the support assembly 100 and is located below the middle sedimentation plate 605 so that hot oil can flow back to the hot oil tank 108. The beneficial effects of the present invention are: the filtration can be completed timely and efficiently, the manufacturing structure has a high degree of automation, is easy to clean and replace, and has a relatively long service life.

Description

Technical Field

[0001] The invention belongs to the field of food production and processing equipment, in particular to an automatic frying bean curd stick machine. Background Art

[0002] Fried food is popular among consumers because of its unique flavor, numerous varieties, crispy and delicious taste, and its ability to increase appetite. With the improvement of people's living standards, people's requirements for food are getting higher and higher. At present, fried bean curd sheets are mostly in the form of flakes, so it is not easy to hold them during frying, and the finished product has a large space and is not easy to pack and carry. In addition, some existing bean curd frying equipment requires workers to put the product into the oil for frying and then take it out. In this way, the operator is easily scalded by the splashing oil, which is not conducive to safe production.

[0003] Fried bean curd sticks are one of the most popular fried foods. However, due to their small thickness and large size, bean curd sticks are easily over-fried and produce bean curd stick crumbs. Since the remaining bean curd stick crumbs cannot be filtered out in time, the direct consequences are: first, the quality of fried bean curd sticks is affected, such as affecting the fried color and producing carcinogens. Second, the frying area is sealed for safe production, and the color change of hot oil cannot be observed with the naked eye, making it inconvenient to control the quality.

[0004] There are also related frying equipment in the frying equipment industry, see the following patents:

[0005] Chinese utility model patent, a frying device, application number CN201720876779.2, application date 2017.07.19 discloses a frying device provided with a lifting frying mechanism.

[0006] Chinese invention patent, frying equipment, application number CN201810112120.9, application date 2018.02.05, discloses a frying equipment, discloses a frying equipment with a walking mechanism.

[0007] How to provide an automatic fried bean curd stick machine that can complete filtering in time after frying to produce high-quality fried bean curd sticks is the requirement of market and industry development and the requirement of the general public. Summary of the invention

[0008] In order to solve the above technical problems, the present invention proposes an automatic frying bean curd stick machine, which adopts the following technical solutions:

[0009] An automatic frying machine for frying bean curd sticks, a support assembly 100, a push assembly 200, a frying hanger assembly 300, upper and lower frying assemblies 400, an air inlet assembly 500, an oil return assembly 600, an upper and lower stripping assembly 700, and bean curd sticks 800; the bean curd sticks 800 are loaded into the frying hanger assembly 300 and pushed forward in the limiting strips 107 on both sides of the support assembly 100 by the push assembly 200, the upper and lower frying assemblies 400 can move up and down and put the hot oil tank 108 under the frying hanger assembly 300 for frying and return to their original positions; the air inlet assembly 500 is installed in the middle of the support assembly 100 to supply air for cooling the frying hanger assembly 300, and the upper and lower stripping assemblies 700 are installed at the rear of the support assembly 100 to remove the bean curd sticks 800 from the frying hanger assembly 300. It is characterized in that the oil return assembly 600 is installed at the through hole position in the middle of the frame 101 of the support assembly 100, and the oil return assembly 600 is divided into three layers, namely the upper wave plate 601, the middle sedimentation plate 605 and the bottom inclined plate 618; the upper wave plate 601 is installed obliquely toward the tail end and the trough is provided with a through hole, the middle sedimentation plate 605 is installed horizontally and is provided with a hole groove, and the bottom inclined plate 618 is installed obliquely toward the head end; the upper wave plate 601 and the middle sedimentation plate 605 are fixed together and can reciprocate together; the bottom inclined plate 618 is detachably installed on the frame 101 of the support assembly 100 and is located below the middle sedimentation plate 605 so that the hot oil can flow back to the hot oil tank 108.

[0010] The support assembly 100 is provided with a frying hole 104, a walking hole 105, and a discharging hole 106; limit strips 107 are provided on both sides of the walking hole 105 to facilitate the walking limit of the frying hanger assembly 300; slide grooves 110 are provided on both sides of the walking hole 105 to facilitate the forward and backward sliding of the oil return assembly 600, and a pull ring 111 is also provided on the support assembly 100 to connect the pull rope 112.

[0011] The pushing assembly 200 is installed on the pushing table 201 and includes a pushing cylinder 202, a cylinder fixing plate 203, and a pushing plate 204; the pushing cylinder 202 is installed on the cylinder fixing plate 203 and a pushing plate 204 is installed at its front end; the pushing table 201 and the upper surface of the upper table top 102 are flush.

[0012] The frying rack assembly 300 includes an upper fixing plate 301, a lower fixing plate 302, a through hole 303, a mesh tube 304, and a fixing rod 305; the fixing rod 305 is placed vertically and is fixed to the upper fixing plate 301 and the lower fixing plate 302 respectively, and the upper fixing plate 301 and the lower fixing plate 302 are both provided with a through hole 303 for installing the mesh tube 304.

[0013] The upper and lower frying assembly 400 includes a frying frame 401, upper and lower frying cylinders 402, a bracket 403, a linear bearing 404, and an optical axis 405;

[0014] The upper wave plate 601 is provided with a wave hole 602, an upper side panel 603, an upper front return plate 604, an upper side panel upper head end 6031, an upper side panel rear end 6032, an upper side panel lower head end 6033, and an upper side panel lower rear end 6034; the wave hole 602 is arranged at the position of the wave trough and arranged horizontally and vertically, the upper side panel 603 is arranged on both sides of the periphery of the upper wave plate 601, and the upper front return plate 604 is arranged on the front side of the upper wave plate 601; the upper side panel upper end 6031 is higher than the vertical height of the upper side panel rear end 6032 so as to form a slope; the upper side panel lower head end 6033 is slightly higher than the lower side panel rear end 6034 so as to form a slope.

[0015] The middle sedimentation plate 605 is provided with a first partition 606, a second partition 608, and a third partition 610; the first partition 606 is provided with a first partition overflow square hole 607, the second partition 608 is provided with a second partition overflow square hole 609, and the third partition 610 is provided with a third partition overflow square hole 611. The first partition overflow square hole 607 is arranged at a higher height than the second partition overflow square hole 609, and the second partition overflow square hole 609 is arranged at a higher height than the third partition overflow square hole 611. Pull rods 623 are arranged on both sides of the middle sedimentation plate 605. The pull rods 623 are connected to the pull ring 111 by means of a pull rope 112 and can make reciprocating motion.

[0016] The bottom inclined plate 618 is provided with a bottom side panel 619 and a bottom rear panel 620. The bottom side panel 619 is provided with a bottom side panel head end 6191 and a bottom side panel tail end 6192. The bottom side panel head end 6191 is arranged at a height higher than the bottom side panel tail end 6192.

[0017] A filter plate 621 is also provided at the rear end of the bottom inclined plate 618, and through holes are provided on the filter plate 621 to facilitate hot oil reflux and filtration.

[0018] The beneficial effects of the present invention are as follows: the technical solution of the present invention arranges multiple filters to well ensure the quality of hot oil, and the degree of structural automation is high; the present invention can complete filtering in a timely and efficient manner to produce high-quality fried bean curd sticks, the production structure has a high degree of automation, and is easy to clean and replace, and has a relatively long service life; the color change of the hot oil can be observed with the naked eye, which is convenient for controlling the quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the present invention

[0020] Figure 2 The front view of the present invention

[0021] Figure 3 for Figure 2 Top view

[0022] Figure 4 Schematic diagram of the structure of the support assembly 100 and the oil return assembly 600

[0023] Figure 5 A front cross-sectional view of the frame 101

[0024] Figure 6 for Figure 5 Left side section view

[0025] Figure 7 for Figure 5 Top view

[0026] Figure 8 for Figure 5 A detailed view in

[0027] Fig. 9 for Figure 6 B Detailed View in

[0028] Fig.10 The schematic diagram of the structure of the present invention after omitting the frying rack assembly 300

[0029] Fig.11 A schematic diagram of the structure of the frying rack assembly 300

[0030] Fig.12 The schematic diagram of the structure of the oil return assembly 600 is shown in FIG.

[0031] Fig.13 Schematic diagram of the structure of the upper wave plate 601

[0032] Fig.14 for Fig.13 Main section view

[0033] Fig.15 The schematic diagram of the structure of the middle sedimentation plate 605

[0034] Fig.16 A schematic diagram of the structure of the bottom inclined plate 618

[0035] Fig.17 State diagram for advancement

[0036] Fig.18 The state of advancement Fig.17 Main view

[0037] Fig.19 for Fig.18Detailed view of

[0038] Fig. 20 The schematic diagram of the structure of the upper and lower frying components 400 is shown in FIG.

[0039] Fig.21 The schematic diagram of the structure of the upper and lower stripping components 700 is shown in FIG.

[0040] Bracket assembly 100, frame 101, upper table top 102, lower table top 103, frying hole 104, walking hole 105, discharge hole 106, limit bar 107, hot oil tank 108, material receiving box 109, chute 110, pull ring 111, pull rope 112.

[0041] Pushing assembly 200, pushing table 201, pushing cylinder 202, cylinder fixing plate 203, pushing plate 204

[0042] Frying rack assembly 300, upper fixing plate 301, lower fixing plate 302, through hole 303, mesh tube 304, fixing rod 305

[0043] Upper and lower frying components 400, frying frame 401, upper and lower frying cylinders 402, bracket 403, linear bearing 404, optical axis 405

[0044] Air inlet assembly 500, air inlet lower frame 501, air inlet upper frame 502, fan 503

[0045] Oil return assembly 600, upper wave plate 601 (conical), wave hole 602, upper side enclosure 603, upper front return plate 604, middle sedimentation plate 605, first baffle 606, first baffle overflow square hole 607, second baffle 608, second baffle overflow square hole 609, third baffle 610, third baffle overflow square hole 611, first groove 612, second groove 613, third groove 614, fourth groove 615, fourth groove hole 616, roller 617, bottom inclined plate 618, bottom side Upper and lower stripping components 700, stripping frame 701, stripping cylinder 702, stripping frame 703, stripping cylinder 704, stripping bracket 705, stripping bracket 705, stripping bracket 706, stripping plate 619, bottom rear panel 619, bottom rear panel 620, filter plate 621, hanging plate 622, pull rod 623, rear push cylinder 624, upper side panel head end 6031, upper side panel tail end 6032, upper side panel lower head end 6033, upper side panel lower tail end 6034, bottom side panel head end 6191, bottom side panel tail end 6192, upper and lower stripping components 700, stripping frame 701, stripping cylinder 702, stripping frame 703, push rod 704, stripping bracket 705, yuba 800 DETAILED DESCRIPTION

[0046] Example 1: Combination of the following Figure 1-Figure 21 The present invention is described in detail.

[0047] The support assembly 100 includes a frame 101, an upper table top 102, a lower table top 103, a frying hole 104, a walking hole 105, a discharge hole 106, a limit bar 107, a hot oil tank 108, a material receiving box 109, a slide 110, a pull ring 111, and a pull rope 112.

[0048] The frame 101 is a square tabletop with legs, and the center of the upper tabletop 102 is an "H"-shaped hole, which includes a frying hole 104, a walking hole 105 and a discharge hole 106 (such as Figure 7 The hot oil tank 108 and the material receiving box 109 are placed on the lower table 103. The hot oil tank 108 is used to provide the hot oil required for frying, and the material receiving box 109 is used to collect the fried yuba (see Figure 1 , Figure 2 ). Limiting strips 107 are arranged on both sides of the travel hole 105, and the limiting strips 107 are used to ensure the limit position of the frying rack assembly 300 when traveling (see Figure 5 , Figure 6 Similarly, the limit bars 107 on the frying rack assembly 300 and the upper and lower stripping assembly 700 are of the same size, and the limit bars 107 on both sides are the same distance apart; in other words, the limit bars 107 on both sides penetrate the tabletop of the frame 101, and only the limit bars 107 on the frying rack assembly 300 and the upper and lower stripping assembly 700 are movable). Slide grooves 110 are provided on both sides of the walking hole 105 to facilitate the back and forth sliding of the oil return assembly 600 (see Fig. 9 The support assembly 100 is also provided with a pull ring 111 to connect a pull rope 112 (a section of the pull rope 112 is fixed on the pull ring 111, and one end is fixed on the pull rod 623. The pull rope 112 has good elasticity so that it can be reset. Figure 8 ).

[0049] The pusher assembly 200 includes a pusher table 201, a pusher cylinder 202, a cylinder fixing plate 203, and a pusher plate 204 (see Fig.10 ).

[0050] The table top height of the pusher table 201 is the same as the table top height of the frame 101. The pusher cylinder 202 is fixed to the cylinder fixing plate 203 and a pusher plate 204 is provided at the front end. The cylinder fixing plate 203 is vertically fixed on the pusher table 201 (see Figure 1 and Fig.10 ).

[0051] In order to facilitate pushing, the upper planes of the pushing table 201 and the upper table plate 102 are level, and the pushing assembly 200 pushes the frying rack assembly 300 that continuously enters the motion series to move forward until it reaches the unloading station of the upper and lower stripping assemblies 700.

[0052] The frying rack assembly 300 includes an upper fixing plate 301, a lower fixing plate 302, a through hole 303, a mesh tube 304, and a fixing rod 305 (see FIG. Fig.11 ).

[0053] The frying rack assembly 300 is vertically provided with an upper fixing plate 301 and a lower fixing plate 302 fastened by a fixing rod 305 , and the upper fixing plate 301 and the lower fixing plate 302 are correspondingly provided with through holes 303 for installing the mesh tube 304 .

[0054] The mesh tube 304 can also be replaced with a steel tube, as long as the bean curd sheets 800 can be properly installed (the bean curd sheets 800 are in a roll shape).

[0055] A plurality of unfried bean curd sheets 800 are loaded into the mesh tube 304 of the frying rack assembly 300 (the number in the present invention is determined by the number of the mesh tubes 304 of the frying rack assembly 300 being 5*5=25).

[0056] The upper and lower frying assembly 400 includes a frying frame 401, upper and lower frying cylinders 402, a bracket 403, a linear bearing 404, and an optical axis 405. Figure 1 , Fig.10 , Fig. 20 As shown in the figure, the upper and lower frying assemblies 400 are installed above the frying hole 104 for frying. The frying frame 401 is in the shape of an inverted opening "ㄇ", on which the upper and lower frying cylinders 402 are installed. The front ends of the upper and lower frying cylinders 402 are installed with a bracket 403 for placing the frying hanger assembly 300 for frying. The bracket 403 is provided with an optical axis 405 that moves through a linear bearing 404. At the same time, a limit bar 107 is also provided on the bracket 403 to limit the frying hanger assembly 300.

[0057] The upper and lower frying components 400 can move up and down and put the frying rack component 300 down for frying and return it to its original position so as to enter the movement series and continue to move forward.

[0058] The air inlet assembly 500 includes an air inlet lower frame 501, an air inlet upper frame 502, and a fan 503 (see Figure 2 ).

[0059] The air inlet assembly 500 is installed in the middle of the bracket assembly 100, that is, above the walking hole 105, so as to supply air for cooling the frying rack assembly 300. The air inlet lower frame 501 is relatively arranged on both ends of the walking hole 105 of the frame 101. The air inlet upper frame 502 is installed in a "ㄇ" shape on the air inlet lower frame 501, and the fan 503 is installed on the air inlet upper frame 502.

[0060] The oil return assembly 600 includes the following: an upper wave plate 601, a wave hole 602, an upper side enclosure 603, an upper front return plate 604, a middle sedimentation plate 605, a first baffle 606, a first baffle overflow square hole 607, a second baffle 608, a second baffle overflow square hole 609, a third baffle 610, a third baffle overflow square hole 611, a first groove 612, a second groove 613, a third groove 614, a fourth groove 615, Fourth slot hole 616, roller 617, bottom inclined plate 618, bottom side panel 619, bottom rear panel 620, filter plate 621, hanging plate 622, pull rod 623, push cylinder 624, upper side panel head end 6031, upper side panel tail end 6032, upper side panel lower head end 6033, upper side panel lower tail end 6034, bottom side panel head end 6191, bottom side panel tail end 6192 (see Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 ).

[0061] The oil return assembly 600 is installed at the through hole position in the middle of the frame body 101 of the support assembly 100 (see Figure 4 ), because when the frying rack assembly 300 completes frying and rises to the height of the upper table plate 102, the upper two layers of the oil return assembly 600 (the upper wave plate 601 and the middle sedimentation plate 605) will move to the bottom of the frying rack assembly 300 under the push of the rear push cylinder 624 to complete the oil receiving task.

[0062] The oil return assembly 600 includes three layers: an upper wave plate 601, a middle sedimentation plate 605 and a bottom inclined plate 618 (the upper wave plate 601 has two functions: one is to receive the hot oil; the other is to complete the primary filtration of the hot oil with bean curd chips (relatively large bean curd chips), such as Fig.12 As shown. The middle sedimentation plate 605 is to allow the fine debris in the hot oil to settle because it has been oxidized and blackened, and can pass through multiple layers of sedimentation and filtration; the bottom inclined plate 618 is to allow the filtered hot oil to quickly return). In order to facilitate filtration, the upper wave plate 601 is provided with wave holes 602 in the wave trough and arranged horizontally and vertically (see Fig.13 ), in order to prevent the hot oil from overflowing, the upper side panels 603 on both sides of the upper wave plate 601 are provided with an upper side panel head end 6031, an upper side panel tail end 6032, an upper side panel lower head end 6033 and an upper side panel lower tail end 6034 (see Fig.14). The upper head end 6031 of the upper side panel and the lower head end 6033 of the upper side panel are located at the head end of the upper side panel 603 but are separated up and down. The upper tail end 6032 of the upper side panel and the lower tail end 6034 of the upper side panel are located at the tail end of the upper side panel 603 but are separated up and down. Since the upper head end 6031 of the upper side panel is higher in vertical height than the tail end 6032 of the upper side panel, it can handle hot oil with a large flow rate (because of its large capacity). Since the lower head end 6033 of the upper side panel is higher in vertical height than the lower tail end 6034 of the upper side panel, the upper wave plate 601 is inclined (to facilitate the flow of hot oil to the tail end). The upper front return plate 604 is set at the front side of the upper wave plate 601 to block the hot oil.

[0063] The head end 6191 of the bottom side panel and the tail end 6192 of the bottom side panel are respectively disposed at the head and tail ends of the bottom side panel 619 of the bottom inclined plate 618. The head end 6191 of the bottom side panel is higher in vertical height than the tail end 6192 of the bottom side panel, so that a slope can be generated to allow the hot oil to quickly return (see Fig.15 ).

[0064] The upper wave plate 601 can be set in a horizontal direction or an inclined direction. The purpose of setting it in an inclined direction is to allow the hot oil to flow back faster (and there will be more hot oil in the front, see Fig.14 ).

[0065] The middle sedimentation plate 605 is a slotted type, and is divided into a first slot 612, a second slot 613, a third slot 614 and a fourth slot 615 by a first baffle 606, a second baffle 608 and a third baffle 610 (see Fig.15 ); and a fourth slot hole 616 is provided in the fourth slot 615 for filtering the hot oil and flowing it to the bottom inclined plate 618. A roller 617 is also provided on the side of the middle sedimentation plate 605. The upper wave plate 601 is fixed on the middle sedimentation plate 605 and can reciprocate together. Pull rods 623 are provided on both sides of the middle sedimentation plate 605. The pull rods 623 are connected to the pull ring 111 by the pull rope 112 and can reciprocate.

[0066] The bottom inclined plate 618 is installed on the frame 101 of the support assembly 100 and is located below the middle sedimentation plate 605. The bottom inclined plate 618 is provided with a bottom side panel 619 and a bottom rear panel 620 to allow the hot oil to flow out from the front end. The rear end of the bottom inclined plate 618 is provided with a filter plate 621 for filtering the hot oil. The hanging plate 622 can rotate around the axis and is provided with a hook for fixing the bottom inclined plate 618 to the slide groove 110 (that is, the rotating hook hangs the slide groove 110 and can be removed). Fig.16 shown.

[0067] The upper and lower stripping components 700 include a stripping frame 701, a stripping cylinder 702, a pusher frame 703, a push rod 704, and a stripping bracket 705 (see FIG. Fig.21 ). The upper and lower stripping assemblies 700 are installed above the discharge hole 106 (also at the tail of the bracket assembly 100). The stripping frame 701 is "ㄇ" shaped and is provided with a stripping cylinder 702. The front end of the stripping cylinder 702 is provided with a pushing rack 703, and the front end of the pushing rack 703 is provided with a push rod 704. When the frying rack assembly 300 reaches this station, it enters the stripping bracket 705. The stripping bracket 705 is "ㄩ" shaped (with an empty hole at the bottom for unloading), and is provided with a limit strip 107 for limiting guidance. The stripping cylinder 702 drives the push rod 704 to push out the bean curd sheets 800 in the frying rack assembly 300 and unload them into the receiving box 109. Fig.21 .

[0068] The bean curd sheets 800 are initially in block shape and are rolled up and put into the frying rack assembly 300 for frying.

[0069] When working:

[0070] After being rolled, the bean curd sheet 800 is put into the mesh tube 304 of the frying rack assembly 300. Since the bean curd sheet 800 has a certain resilience, it can be opened in the mesh tube 304 and fixed without falling down (the mesh tube 304 is a through hole for easy feeding); after the bean curd sheet 800 is loaded, the frying rack assembly 300 is placed on the upper table plate 102 (the front end of the frying hole 104) so ​​that it can be pushed into the bracket 403 of the upper and lower frying assemblies 400 by the pushing cylinder 202 on the pushing assembly 200. Since the frame 101 and the frying rack assembly 300 are both provided with a limit strip 107 (the distance between the two sides is the same), the frying rack assembly 300 can accurately enter the bracket 403 of the frying rack assembly 300 from the front end of the frying hole 104, and then enter the position on the walking hole 105.

[0071] After entering the frying rack assembly 300, the upper and lower frying cylinders 402 can move downward to immerse the frying rack assembly 300 in the hot oil in the hot oil tank 108 to complete frying. After frying, the upper and lower frying cylinders 402 move upward to return to the original position of the bracket 403 (the original position of the bracket 403 refers to the upper surface of the lower support plate of the bracket 403 and the upper surface of the upper table plate 102 being on the same horizontal plane, so that the frying rack assembly 300 can pass smoothly).

[0072] After the upper and lower frying cylinders 402 bring the frying hanger assembly 300 back to its original position, another frying hanger assembly 300 is placed from the front end of the frying hole 104 (within the limited range of the limit strips 107 on both sides), and the pushing cylinder 202 is activated again to push the frying hanger assembly 300 until it is pushed into the bracket 403, and the frying hanger assembly 300 in the original bracket 403 is pushed onto the upper table plate 102 (of course, it is still within the limited range of the limit strips 107 on both sides, and the limit strips 107 on both sides form a track).

[0073] Similarly, after the previous frying rack assembly 300 has finished frying and returned to its original position, a new frying rack assembly 300 is also placed to push it forward (of course, under the action of the pushing cylinder 202). Therefore, the length of the travel hole 105 is exactly an integer multiple of the width of the frying rack assembly 300, so that the frying rack assembly 300 can accurately reach the discharge hole 106 (that is, directly below the upper and lower stripping assemblies 700). After the frying rack assembly 300 reaches the unloading station directly below the upper and lower stripping assemblies 700, the stripping air cylinder 202 on the upper and lower stripping assemblies 700 is pushed forward. The cylinder 702 moves downward, and the push rod 704 pushes the bean curd sheets 800 into the material receiving box 109 (of course, the stripping bracket 705 on the pushing rack 703 will make the frying rack assembly 300 on the same plane as the upper table plate 102). The movement of the frying rack assembly 30 solves the problem of loading and unloading. The next is the frying part structure. Therefore, the focus of the present invention is on the oil return assembly 600 and the air inlet assembly 500. In order to facilitate oil return and disassembly and cleaning, the bottom inclined plate 618 on the oil return assembly 600 is equipped with hanging plates 622 at the four corners (the hanging plates 622 are hook-shaped, see Fig.12 , Fig.16 ), the hanging plate 622 can rotate around the axis to hook the slide slot 110 (see Fig.19 ), the upper wave plate 601 and the middle sedimentation plate 605 are fixedly connected together and placed in the slide 110 (the position of the upper wave plate 601 and the middle sedimentation plate 605 is the position of the walking hole 105). Since the two sides of the middle sedimentation plate 605 are respectively installed with two front and rear rollers 617, the middle sedimentation plate 605 can move forward together with the upper wave plate 601 under the action of the rear push cylinder 624 (see Fig.17), while the bottom inclined plate 618 remains in the same position. The purpose of the upper wave plate 601 and the middle sedimentation plate 605 moving forward is: since the frying rack assembly 30 has just finished frying and returned to its original position, a large amount of hot oil will flow down at this time (there are also a large amount of bean curd chips and other impurities). After the upper wave plate 601 and the middle sedimentation plate 605 move forward, the hot oil does not directly enter the hot oil tank 108 but enters the upper wave plate 601. Since the upper wave plate 601 is provided with an upper side panel 603 and an upper front return plate 604, it can accommodate more hot oil. Moreover, since the frying rack assembly 30 will have hot oil flowing down from the frying hole 104 to the walking hole 105 and then to the discharge hole 106, but it will gradually decrease (because the advancement of the frying rack assembly 30 objectively provides time for the oil to flow down, and the fan 503 on the air inlet assembly 500 will also blow the hot oil down). The upper wave plate 601 is a wave plate to allow the oil to flow better, while the wave holes 602 play the role of the first filtration. Large-sized impurities will stay in the trough for cleaning. Therefore, in order to cope with the large amount of hot oil generated after the frying rack assembly 30 returns to its original position after frying, the head end 6031 of the upper side panel is higher than the vertical height of the tail end 6032 of the upper side panel to form a slope (so the volume of the head end is larger). And in order to facilitate flow, the upper wave plate 601 is also arranged to be inclined toward the tail end, so the lower head end 6033 of the upper side panel is slightly higher than the lower tail end 6034 of the upper side panel to form a slope. The operation is as follows: when the frying rack assembly 30 moves upwards higher than the table top of the upper table plate 102 after frying, the rear push cylinder 624 will push the upper wave plate 601 and the middle sedimentation plate 605 forward (see Fig.18 , moving forward also stretches the pull rope 112, and the pull rope 112 connects the pull ring 111 and the pull rod 623) so as to catch the flowing hot oil as soon as possible; when the frying rack assembly 30 moves in the direction of removing the material after frying, the middle sedimentation plate 605 also returns to its original position with the help of the resilience of the pull rope 112 (so the upper wave plate 601 after returning to its position can also continue to catch the hot oil, and the middle sedimentation plate 605 returns to its original position and the pull rope 112 also returns to its original state), and when the upper wave plate 601 and the middle sedimentation plate 605 move forward, the hot oil on the tail end of the frying rack assembly 30 will flow directly to the bottom inclined plate 618, so the bottom inclined plate 618 is provided with a filter plate 621 for supplementary filtration.

[0074] The middle sedimentation plate 605 is provided with a first partition plate 606 , a second partition plate 608 , and a third partition plate 610 ; thereby the central hole of the middle sedimentation plate 605 is divided into a first groove 612 , a second groove 613 , a third groove 614 and a fourth groove 615 . Since the middle sedimentation plate 605 is placed horizontally, and the first partition plate 606 is provided with a first partition overflow square hole 607 for hot oil to pass through, the second partition plate 608 is provided with a second partition overflow square hole 609 for hot oil to pass through, and the third partition plate 610 is provided with a third partition overflow square hole 611 for hot oil to pass through, but the first partition overflow square hole 607 is set at a higher height than the second partition overflow square hole 609, and the second partition overflow square hole 609 is set at a higher height than the third partition overflow square hole 611, so even if the middle sedimentation plate 605 is placed horizontally, the hot oil can still enter the second groove 613 from the first groove 612, then to the third groove 614, and finally to the fourth groove 615. Impurities will also be precipitated during the placement process. Since the fourth groove 615 is provided with a fourth groove hole 616, it can play a role of secondary filtration and the hot oil enters the bottom inclined plate 618 at the same time.

[0075] The bottom inclined plate 618 is provided with a bottom side panel 619 and a bottom rear panel 620 so that it can accommodate hot oil. Also, because the bottom side panel 619 is provided with a bottom side panel head end 6191 and a bottom side panel tail end 6192, it can accommodate hot oil leaking from the fourth slot hole 616. Since the bottom side panel head end 6191 is arranged at a higher height than the bottom side panel tail end 6192, the bottom inclined plate 618 is inclined toward the head end so that the hot oil can flow from the head end into the hot oil tank 108.

[0076] In summary, the hot oil returns to the hot oil tank 108 after three layers of filtration, thereby effectively limiting the impurities from entering the hot oil tank 108 again, thereby affecting the quality of the hot oil. Of course, the hot oil tank 108 is provided with an automatic heating system to better maintain the frying temperature. The present invention can complete the filtration in a timely and efficient manner to produce high-quality fried bean curd sticks, the manufacturing structure has a high degree of automation, is easy to clean and replace, and has a relatively long service life.

Claims

1. An automatic frying machine for frying bean curd sticks, comprising a support assembly (100), a material pushing assembly (200), a frying hanger assembly (300), upper and lower frying assemblies (400), an air inlet assembly (500), an oil return assembly (600), upper and lower material removing assemblies (700), and bean curd sticks (800); the bean curd sticks (800) are loaded into the frying hanger assembly (300) and pushed by the material pushing assembly (200) onto the limiting strips (100) on both sides of the support assembly (100) 7)) and the upper and lower frying components (400) can move up and down and put the hot oil tank (108) under the frying rack component (300) for frying and return to the original position; the air inlet component (500) is installed in the middle of the support component (100) to supply air to the frying rack component (300) for cooling, and the upper and lower material removal components (700) are installed at the rear of the support component (100) to push the bean curd sticks (800) out of the frying rack component (300), characterized in that: The oil return assembly (600) is installed at a through hole position in the middle of the frame (101) of the support assembly (100), and the oil return assembly (600) is divided into three layers, namely an upper wave plate (601), a middle sedimentation plate (605) and a bottom inclined plate (618); the upper wave plate (601) is installed obliquely toward the tail end and a through hole is provided at the trough, the middle sedimentation plate (605) is installed horizontally and is provided with a hole groove, and the bottom inclined plate (618) is installed obliquely toward the head end; the upper wave plate (601) and the middle sedimentation plate (605) are fixed together and can reciprocate together; the bottom inclined plate (618) is detachably installed on the frame (101) of the support assembly (100) and is located below the middle sedimentation plate (605) so that the hot oil can flow back to the hot oil tank (108).

2. The automatic frying machine for yuba according to claim 1, characterized in that: The support assembly (100) is provided with a frying hole (104), a walking hole (105), and a discharging hole (106); limit strips (107) are provided on both sides of the walking hole (105) to facilitate the travel limit of the frying hanger assembly (300); slide grooves (110) are provided on both sides of the walking hole (105) to facilitate the forward and backward sliding of the oil return assembly (600); and a pull ring (111) is also provided on the support assembly (100) to facilitate the connection of a pull rope (112).

3. The automatic frying machine for yuba according to claim 1, characterized in that: The material pushing assembly (200) is installed on the material pushing table (201) and comprises a material pushing cylinder (202), a cylinder fixing plate (203), and a pushing plate (204); the material pushing cylinder (202) is installed on the cylinder fixing plate (203) and a pushing plate (204) is installed at the front end thereof; the upper planes of the material pushing table (201) and the upper table top (102) are flush with each other.

4. The automatic frying machine for yuba according to claim 1, characterized in that: The frying rack assembly (300) comprises an upper fixing plate (301), a lower fixing plate (302), a through hole (303), a mesh tube (304), and a fixing rod (305); the fixing rod (305) is placed vertically and is fixed to the upper fixing plate (301) and the lower fixing plate (302), respectively; the upper fixing plate (301) and the lower fixing plate (302) are both provided with a through hole (303) for installing the mesh tube (304).

5. The automatic frying machine for yuba according to claim 1, characterized in that: The upper and lower frying components (400) include a frying frame (401), upper and lower frying cylinders (402), a bracket (403), a linear bearing (404), and an optical axis (405).

6. The automatic frying machine for yuba according to claim 1, characterized in that: The upper wave plate (601) is provided with a wave hole (602), an upper side panel (603), an upper front return plate (604), an upper head end (6031) of the upper side panel, an upper tail end (6032) of the upper side panel, a lower head end (6033) of the upper side panel, and a lower tail end (6034) of the upper side panel; the wave hole (602) is arranged at the position of the trough and arranged horizontally and vertically, the upper side panel (603) is arranged on both sides of the periphery of the upper wave plate (601), and the upper front return plate (604) is arranged on the front side of the upper wave plate (601); the upper head end (6031) of the upper side panel is higher than the vertical height of the upper tail end (6032) of the upper side panel so as to form a slope; the lower head end (6033) of the upper side panel is slightly higher than the height of the lower tail end (6034) of the upper side panel so as to form a slope.

7. The automatic frying machine for yuba according to claim 1, characterized in that: The middle-layer sedimentation plate (605) is provided with a first partition plate (606), a second partition plate (608), and a third partition plate (610); the first partition plate (606) is provided with a first partition plate overflow square hole (607), the second partition plate (608) is provided with a second partition plate overflow square hole (609), and the third partition plate (610) is provided with a third partition plate overflow square hole (611); the first partition plate overflow square hole (607) is arranged at a height higher than the second partition plate overflow square hole (609), and the second partition plate overflow square hole (609) is arranged at a height higher than the third partition plate overflow square hole (611).

8. The automatic frying machine for yuba according to claim 1 or 7, characterized in that: Pull rods (623) are arranged on both sides of the middle sedimentation plate (605), and the pull rods (623) are connected to the pull ring (111) by means of a pull rope (112) and can make reciprocating motion.

9. The automatic frying machine for yuba according to claim 1, characterized in that: The bottom inclined plate (618) is provided with a bottom side panel (619) and a bottom rear panel (620), and the bottom side panel (619) is provided with a bottom side panel head end (6191) and a bottom side panel tail end (6192), and the bottom side panel head end (6191) is arranged at a height higher than the bottom side panel tail end (6192).

10. The automatic frying machine for yuba according to claim 1, characterized in that: A filter plate (621) is also provided at the rear end of the bottom inclined plate (618), and the filter plate (621) is provided with through holes to facilitate hot oil reflux and filtration.

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