Multi-stage buffer screw juicer

Abstract

The utility model relates to a kind of multi-section buffer spiral juice extractor, including the horizontally arranged juice extraction cavity, the both ends of the juice extraction cavity are respectively provided with feed hopper, slag outlet, the slag outlet is equipped with reciprocating slag blocking cover, horizontal screw is arranged in the juice extraction cavity, and discontinuous blade with gradually reducing pitch is equipped on screw; Screw pushes and sends the material to be squeezed horizontally to slag outlet, and the material to be squeezed is subjected to gradually increasing pressing force in the juice extraction process. Using the segmented blade screw with gradually reducing pitch, gradually increasing pressing force is applied to the material to be squeezed, and buffering interval is provided during the force application process, which facilitates the change of relative position of the material to be squeezed in the buffering gap, and the material becomes "fluffy", the internal moisture is also redistributed, and juice extraction is more convenient when stressed again. The application adopts horizontally arranged juice extraction cavity and juice extraction screw, which is beneficial to the rapid discharge of juice and reduces the juice content in fruit residue.

Description

Technical Field

[0001] This utility model relates to the field of juicer technology, and in particular to a multi-stage buffer spiral juicing device. Background Technology

[0002] Juicers are used to extract the juice from fruits. Currently, the most common juicing structures on the market are blade crushing type and pressing type.

[0003] Blade-type juicing is less suitable for large commercial juicers and is mostly used in small juicers for home and personal use. Press-type juicers are suitable for processing large batches of fruit; however, due to the constant pressure applied to large quantities of fruit, the press-type structure can create pressure dead zones, resulting in pulp containing a relatively high water content, thus the juice is not fully utilized. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a multi-segment buffer screw juicing device with a reasonable structure. It uses a segmented blade screw with a gradually decreasing pitch to apply a gradually increasing pressing force to the material to be pressed. At the same time, it provides a buffer interval during the force application process, which makes it easier for the material to change its relative position after the force is released and it can be more convenient to extract juice when it is subjected to force again.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A multi-stage buffer screw juicing device includes a horizontally arranged juicing chamber, with a feed hopper and a residue outlet at each end of the juicing chamber. The residue outlet is equipped with a reciprocating residue outlet plug.

[0007] The juicing chamber is equipped with a horizontal screw, and the screw has intermittent blades with gradually decreasing pitch; the screw pushes the material to be pressed horizontally toward the slag outlet, and the material to be pressed is subjected to gradually increasing pressing force during the juicing process.

[0008] The juicing chamber is equipped with the following at its tail end:

[0009] The base plate is mounted on the juicer frame.

[0010] Conical seat, mounted on the base plate.

[0011] The mounting base is installed on the juicer frame.

[0012] A cylinder is located on the mounting base; the cylinder pushes the slag plug, which is adapted to the conical seat.

[0013] The conical seat is an annular component, and the side of the conical seat facing the slag discharge plug is set as a conical surface; the slope of the conical surface of the conical seat is consistent with the slope of the conical surface of the slag discharge plug.

[0014] The conical surface area of ​​the slag discharge plug is larger than the conical surface area of ​​the conical seat.

[0015] The base plate is enclosed at the discharge end of the juicing chamber.

[0016] The screw inside the juicing chamber includes:

[0017] The rod is rotatably connected to the inner wall of the juicing chamber.

[0018] The first blade extends from the end of the rod closest to the feed hopper towards the discharge end.

[0019] The second blade extends from the end of the first blade away from the feed hopper towards the discharge end.

[0020] The first blade and the second blade each have at least one section that is discontinuously arranged.

[0021] The second blade is an intermittently arranged blade.

[0022] The second blade consists of several groups, and the axial length of each group of second blades is equal or gradually decreases along the discharge direction.

[0023] The pitch of the second blade gradually decreases.

[0024] The pitch of the first blade is constant or gradually decreases.

[0025] The beneficial effects of this utility model are as follows:

[0026] This application features a compact and reasonable structure, convenient operation, and relatively minor modifications to the overall machine. The power unit, frame, and other components remain unchanged, with only the screw adjusted. The screw pitch is set to a gradually decreasing pitch, and the spiral blades are set to segmented blades. This enables segmented juicing of the material to be juiced and the material that has been broken and partially juiced during the juicing process, thereby significantly improving the juice yield.

[0027] This application utilizes a segmented blade screw with gradually decreasing pitch to apply gradually increasing pressing force to the material to be pressed. At the same time, it provides a buffer interval during the force application process, which allows the material to change its relative position during the buffer interval. Meanwhile, the material becomes "loose" and the internal moisture is redistributed, making it easier to extract juice when the force is applied again.

[0028] The juicer of this application has a conical sealing structure at the discharge end. The sealing structure can reciprocate in the screw axis to adjust the gap of the pulp outlet, thereby adjusting the dryness of the pulp. In other words, in addition to the special design of the screw to improve the juice yield, the pulp outlet can also help adjust the juice yield.

[0029] This application employs a horizontally positioned juicing chamber and screw, which reduces the influence of gravity and transforms gravity into a factor that helps increase juice yield. If the juicing chamber is vertically oriented, even with intermittent release of pressure during vertical pressing, the relative positions of the materials to be pressed remain almost unchanged after the pressure is removed, resulting in a lower juice yield increase with subsequent pressing. In this application, the horizontal juicing chamber facilitates rapid juice discharge and reduces the juice content in the pulp.

[0030] When the material to be pressed is pushed to a position with a smaller screw pitch, the materials are squeezed against each other. The moment the pressing force is removed, the material on top will fall to a slightly lower position due to gravity. When the material is pressed again, different materials are actually subjected to pressing forces in different directions. For a single material, multiple forces in multiple directions can extract more juice. This is the technical point of this application that can improve the juice yield. Therefore, the horizontal setting is an important factor in improving the juice yield. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the device in this application.

[0032] Figure 2 This is a front view of the overall structure of this application, with the cover plate being a hidden part.

[0033] Figure 3-1 This is a three-dimensional schematic diagram of the screw structure of this application.

[0034] Figure 3-2 This is the front view of the screw in this application.

[0035] Figure 4 This is a schematic diagram of the overall structure of the device in this application. The cover plate is hidden in the diagram, and the quick-release structure is shown.

[0036] Figure 5 for Figure 4 The enlarged view of section A is used to illustrate the quick-release structure.

[0037] Figure 6 This is a schematic diagram of the overall structure of the device in this application. The cover plate is hidden in the figure, and the sealing structure is shown.

[0038] Figure 7 This is a cross-sectional view of the sealing structure of this application.

[0039] Figure 8 This is a sectional perspective view of the entire machine in this application.

[0040] Figure 9 for Figure 8 The enlarged view of section B is used to illustrate a sealed structure.

[0041] Figure 10 for Figure 8 The enlarged view of section C is used to illustrate another sealing structure.

[0042] Figure 11 for Figure 8 The enlarged view of section D is used to illustrate another sealing structure.

[0043] The components include: 1. Feed hopper; 2. Juicing chamber; 3. Cover plate; 4. Screw; 5. First screen; 6. Second screen; 7. Rotating seat; 8. Swing rod; 9. Compression nut; 10. Pin; 11. Base plate; 12. Conical seat; 13. Mounting seat; 14. Cylinder; 15. Slag discharge plug; 16. Sealing structure; 17. Support rib.

[0044] 401. Rod body; 402. First blade; 403. Second blade; 404. Branch blade;

[0045] 501. First snap-fit ​​flange; 502. First limiting groove;

[0046] 601. Second snap-fit ​​flange; 602. Second limiting groove;

[0047] 901. Handheld part;

[0048] 101. Inert gas inlet;

[0049] 161. First connecting piece; 162. First connecting piece; 163. Second connecting piece. Detailed Implementation

[0050] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0051] like Figures 1-11 As shown, the multi-segment buffer screw juicing device of this embodiment includes a horizontally arranged juicing chamber 2. A feed hopper 1 and a slag outlet are respectively provided at both ends of the juicing chamber 2. The slag outlet is equipped with a reciprocating slag outlet plug 15.

[0052] A horizontal screw 4 is installed inside the juicing chamber 2. The screw 4 has intermittent blades with gradually decreasing pitch. The screw 4 pushes the material to be pressed horizontally toward the slag outlet. The material to be pressed is subjected to gradually increasing pressing force during the juicing process.

[0053] The juicing chamber 2 is equipped with:

[0054] The base plate 11 is mounted on the juicer frame.

[0055] The conical seat 12 is mounted on the base plate 11.

[0056] Mounting base 13 is mounted on the juicer frame.

[0057] Cylinder 14 is located on mounting base 13; cylinder 14 pushes slag discharge plug 15, which is adapted to the conical seat 12.

[0058] The conical seat 12 is an annular part. The side of the conical seat 12 facing the slag plug 15 is set as a conical surface. The slope of the conical surface of the conical seat 12 is consistent with the slope of the conical surface of the slag plug 15.

[0059] The conical surface area of ​​the slag discharge plug 15 is greater than the conical surface area of ​​the conical seat 12.

[0060] The base plate 11 is enclosed at the discharge end of the juicing chamber 2.

[0061] The screw 4 inside the juicing chamber 2 includes:

[0062] The rod 401 is rotatably connected to the inner wall of the juicing chamber 2.

[0063] The first blade 402 extends from the end of the rod 401 near the feed hopper 1 towards the discharge end.

[0064] The second blade 403 extends from the end of the first blade 402 away from the feed hopper 1 towards the discharge end.

[0065] At least one section of the first blade 402 and the second blade 403 is an intermittently arranged blade.

[0066] The second blade 403 is an intermittently arranged blade.

[0067] The second blade 403 comprises several groups, and the axial length of each group of second blades 403 is equal or gradually decreases along the discharge direction.

[0068] The pitch of the second blade 403 gradually decreases.

[0069] The pitch of the first blade 402 is constant or gradually decreases.

[0070] The specific structure and working principle of this application are as follows:

[0071] like Figure 1 The figure shown is a perspective view of the overall structure of the machine according to this application. The figure shows the feed hopper 1 and the cover plate 3 of the juicing chamber 2. Figure 2 As shown, part of the cover plate 3 and the screen are hidden, while part of the screw 4 and the slag outlet plug 15 are exposed.

[0072] The key improvement of this application lies in its ability to increase the juice yield. Simultaneously, it is necessary to address issues such as preventing browning during the juicing process and facilitating maintenance after juicing. Therefore, this application also proposes an oxygen-barrier structure and an easy-to-disassemble structure to further optimize equipment performance.

[0073] like Figure 1 and Figure 2As shown, a screw 4 is provided inside the juicing chamber 2. The screw 4 includes a rod body 401, which passes through the frame and is driven to rotate by a power device on the side of the juicer. The power device can be an electric motor, and the output end of the motor is connected to a reducer or a sprocket pair to slow down the rotation speed. Electric motor transmission is existing technology and will not be described in detail in this embodiment.

[0074] Reference Figure 3-1 and Figure 3-2 The diagram below shows the screw 4 structure of this application. As can be seen, the screw body 401 in this application is provided with several sets of axially arranged blades, including continuously arranged first blades 402 and intermittently arranged second blades 403.

[0075] In one embodiment of this application, the pitch of the first blade 402 remains unchanged, providing a stable pressing force to the material to be pressed as it enters the juicing chamber 2, so that a portion of the juice of the material to be pressed is extracted first.

[0076] As an optional implementation, the pitch of the first blade 402 can gradually decrease along the discharge direction, so that the first blade 402 will also provide gradually increasing pressing force to the material to be pressed. Figure 3-2 As shown, the pitch a of the first blade 402, and the pitches of several adjacent blades are denoted as a1, a2, a3, which gradually decrease in sequence.

[0077] In one embodiment of this application, the pitch of any part of the first blade 402 is greater than the pitch of any part of the second blade 403. That is, an is always less than bn. The purpose is to provide a gradually decreasing pitch throughout the screw 4, thereby providing a gradually increasing pressing force to the material to be pressed.

[0078] The second blade 403 has several groups, and the axial length of each group of blades can be equal or gradually decreasing. It should be noted that a group of blades here is not necessarily the length of a pitch segment. Figure 3-2 In this case, a special example occurs where the axial length of each set of blades is exactly a segment of the pitch. Therefore, in this embodiment, the letters "abc" are used to mark the length instead of the pitch symbol "p" to avoid ambiguity.

[0079] In the second blade 403, b1 > b2 > b3 > b4 > b5, and all the second blades 403 satisfy the requirement of gradually decreasing pitch.

[0080] As a further improvement, the buffer spacing between adjacent second blades 403 is denoted as c. c1 > c2 > c3 > c4. This design is intended to allow the buffer space provided to the material to be pressed to gradually decrease during the buffering process, in order to adapt to the gradually increasing pressing force, so that the overall stress state of the material to be pressed is increasingly compacted. The ultimate goal is to increase the juice yield of the material to be pressed.

[0081] As a further improvement, such as Figure 3-1 As shown, the centerline positions of each group of second blades 403 are also separated, that is, a circle of second blades 403 is divided into two centrally symmetrical branch blades 404. And the centerline separation positions of all the second blades 403 are located in the same plane.

[0082] like Figure 4 The diagram shown is a schematic of the overall structure of a juicer. This embodiment uses a juicer as an example to explain the screen and quick-release structure on the juicer.

[0083] Figure 4 A partial cover plate 3 is hidden, exposing the screen. The screen has two layers of mesh. In this embodiment, according to the orientation in the figure, the lower semi-circular screen is named the first mesh surface 5, and the upper semi-circular screen is named the second mesh surface 6.

[0084] Reference Figure 5 At the junction of the first mesh surface 5 and the second mesh surface 6, a first snap-fit ​​flange 501 and a second snap-fit ​​flange 601 are respectively provided as the installation base for installing the quick-release structure.

[0085] The first snap-fit ​​flange 501 and the second snap-fit ​​flange 601 have the same thickness and width. A first limiting groove 502 is formed on the first snap-fit ​​flange 501, and a second limiting groove 602 is formed on the second snap-fit ​​flange 601. The first limiting groove 502 and the second limiting groove 602 are coaxially arranged to form a limiting groove that runs through the first snap-fit ​​flange 501 and the second snap-fit ​​flange 601.

[0086] A rotating seat 7 is fixedly installed on the side of the first snap-fit ​​flange 501 opposite to the second snap-fit ​​flange 601. A rocker arm 8 is rotatably connected to the rotating seat 7. The rocker arm 8 is a bolt, and a clamping nut 9 is screwed onto the rocker arm 8.

[0087] As a further optimization, a hand-held part 901 is provided or integrally formed on the clamping nut 9. The diameter of the hand-held part 901 is larger than the diameter of the clamping nut 9, which is used to increase the contact area with the hand. The clamping nut 9 can be turned by hand by rotating the hand-held part 901.

[0088] In one embodiment of this application, the rotating seat 7 adopts a U-shaped structure, the bottom wall of the U-shaped structure of the rotating seat 7 is the mounting surface, the mounting surface is connected to the mesh surface, and the opening of the rotating seat 7 is set away from the mesh surface, allowing the swing rod 8 to swing up and down in the vertical direction to a range of 180°. A pin 10 passes through the rotating seat 7.

[0089] At the hinge end of the swing arm 8, there is a rotating ring. The rotating ring is sleeved on the pin 10. The thickness of the rotating ring is similar to the width of the swing groove, and there is a clearance fit between the rotating ring and the swing groove to reduce the frictional resistance during swinging.

[0090] During assembly, refer to the reference. Figure 5 Place the second mesh surface 6 on the first mesh surface 5, then swing the swing rod 8 upwards, that is, into the limiting groove, and turn the handle 901 to make the clamping nut 9 press against the second snap-fit ​​flange 601 to complete the installation.

[0091] When disassembly is required, turn the handle 901 in the opposite direction, tighten the nut 9 to disengage from the second snap-fit ​​flange 601, pull down the swing rod 8, and the limiting force on the two mesh surfaces will be removed, allowing the mesh surfaces to be removed.

[0092] Reference Figure 6 and Figure 7 This is a schematic diagram of the sealing structure in this application.

[0093] Figure 6 Part of the cover plate 3 is hidden, exposing the tail of the screw 4 and the slag discharge plug 15 with a conical surface. In one embodiment of this application, the slag discharge plug 15 adopts a frustum structure, with the small end facing the juicing chamber 2.

[0094] Reference Figure 7 The end of the juicing chamber 2 is rotatably connected to the base plate 11. The base plate 11 is a hollow vertical plate, and a conical seat 12 is provided at the circular opening in the middle of the base plate 11. The inclined surface of the conical seat 12 is directly opposite to the inclined surface of the pulp plug 15. When the pulp plug 15 moves to be close to the conical seat 12, it can completely seal the juicing chamber 2.

[0095] In order to achieve the reciprocating motion of the pulp plug 15, a mounting base 13 is also provided on the frame of the juicer. A cylinder 14 is set on the mounting base 13. The cylinder 14 pushes the pulp plug 15 to reciprocate and adjusts the distance between the pulp plug 15 and the conical seat 12.

[0096] The distance between the slag outlet plug 15 and the conical seat 12 is the slag outlet. The size of the slag outlet controls the dryness of the slag and further helps to improve the juice yield.

[0097] like Figure 1 The figure shown is a complete picture of the juicer of this utility model. An inert gas inlet 101 is provided on the side wall of the feed hopper 1.

[0098] The inert gas inlet 101 is located in the middle of the feed hopper 1 or near the bottom of the feed hopper 1, so that there is space above the feed hopper 1 to accommodate the squeezed air.

[0099] In one embodiment of this application, nitrogen is used as the inert gas.

[0100] To ensure that the inert gas entering the juicing chamber 2 does not easily escape and that outside air does not easily enter, this application also provides a sealing structure 16 to ensure the airtightness of the juicing chamber 2.

[0101] like Figure 8 As shown, the outer shell of the juicer is composed of several cover plates 3 spliced ​​together, and the sealing structure 16 is set between adjacent cover plates 3. Figure 9 , Figure 10 , Figure 11 This is a schematic diagram of the three specific sealing structures 16 in this embodiment.

[0102] The sealing structure 16 in this application is mainly designed to consist of a cover plate 3 and an integrally formed first connector 161, connecting member, and support rib 17 on the cover plate 3.

[0103] Among them, the cover plate 3 and the first connecting member 161 are actually the cover plate 3 and the stiffening plate on the cover plate 3. For the sake of understanding the subsequent composition structure, the stiffening plate is referred to as the first connecting member 161.

[0104] Both the first connector 162 and the second connector 163 are silicone sealing strips with a "U" shaped cross-section.

[0105] Support rib 17 is a reference set on the frame for supporting and installing cover plate 3.

[0106] The following explanation uses three sealing structures 16 in different locations as examples:

[0107] like Figure 9 As shown, the sealing structure 16 is for the first installation position. Near the feed hopper 1, a first connecting member 162 is provided on the side wall of the feed hopper 1, and the first connecting member 162 covers the edge of the cover plate 3. The first connecting member 161 extending from the cover plate 3 can be pressed against the frame or the support rib 17, or it can be suspended. Because the cover plate 3 does not need to bear a large external force, this structure, combined with the support rib 17 on the other side, can theoretically achieve the function of load-bearing support.

[0108] like Figure 10The diagram shows the sealing structure 16 for the second installation position. For clarity, refer to the perspective sectional view of the sealing structure 16 in the reference figure. Cover plates 3 are provided on both the left and right sides of the support rib 17. First connecting members 162 are provided on the opposite edges of the two cover plates 3. A gap is provided between the two first connecting members 162 to prevent excessive resistance during disassembly due to tight fit. The first connecting member 161 is positioned to avoid the first connecting members 162, i.e., there is a small distance between the first connecting member 161 and the edge of the cover plate 3. The side of the first connecting member 161 facing away from the cover plate 3 presses against the top surface of the support rib 17. At least one side of the support rib 17 is equipped with a second connecting member 163. The first connecting member 161 on the side with the second connecting member 163 is pressed onto the second connecting member 163.

[0109] like Figure 11 As shown, this is the sealing structure 16 for the third installation position.

[0110] and Figure 10 The difference is that, Figure 11 The second connector 163 in the middle, and Figure 10 The second connector 163 is installed on different sides of the support rib 17. That is, according to the orientation shown in the figure, Figure 10 The second connecting piece 163 is installed on the side near the feed hopper 1, that is Figure 10 Left side of the middle; Figure 11 The second connecting piece 163 is installed on the side of the support rib 17 away from the feed hopper 1, that is Figure 11 Right side of the middle.

[0111] The installation of the above three sealing structures 16 can provide a reliable sealing space, ensuring that no air enters the juicing chamber 2.

[0112] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A multi-stage buffered spiral juicing device, characterized in that: It includes a horizontally arranged juicing chamber (2), with a feed hopper (1) and a slag outlet at each end of the juicing chamber (2). The slag outlet is equipped with a reciprocating slag outlet plug (15). A horizontal screw (4) is installed inside the juicing chamber (2). The screw (4) has intermittent blades with gradually decreasing pitch. The screw (4) pushes the material to be pressed horizontally toward the slag outlet. The material to be pressed is subjected to gradually increasing pressing force during the juicing process.

2. The multi-stage buffer spiral juicing device as described in claim 1, characterized in that: The juicing chamber (2) is provided with the following at its tail end: The base plate (11) is mounted on the juicer frame. A conical seat (12) is mounted on a base plate (11). Mounting base (13) is installed on the juicer frame. A cylinder (14) is located on a mounting base (13); the cylinder (14) pushes the slag plug (15) to fit into the conical seat (12).

3. The multi-stage buffer spiral juicing device as described in claim 2, characterized in that: The conical seat (12) is an annular component. The side of the conical seat (12) facing the slag plug (15) is set as a conical surface. The slope of the conical surface of the conical seat (12) is consistent with the slope of the conical surface of the slag plug (15).

4. The multi-stage buffer spiral juicing device as described in claim 3, characterized in that: The conical surface area of ​​the slag plug (15) is greater than the conical surface area of ​​the conical seat (12).

5. The multi-stage buffer spiral juicing device as described in claim 2, characterized in that: The base plate (11) is enclosed at the discharge end of the juicing chamber (2).

6. The multi-stage buffer spiral juicing device as described in claim 1, characterized in that: The screw (4) inside the juicing chamber (2) includes: The rod (401) is rotatably connected to the inner wall of the juicing chamber (2). The first blade (402) extends from the end of the rod (401) near the feed hopper (1) towards the discharge end. The second blade (403) extends from the end of the first blade (402) away from the feed hopper (1) towards the discharge end. The first blade (402) and the second blade (403) each have at least one section that is discontinuously arranged.

7. The multi-stage buffer spiral juicing device as described in claim 6, characterized in that: The second blade (403) is a blade that is intermittently set.

8. The multi-stage buffer spiral juicing device as described in claim 7, characterized in that: The second blade (403) comprises several groups, and the axial length of each group of second blades (403) is equal or gradually decreases along the discharge direction.

9. The multi-stage buffer spiral juicing device as described in claim 8, characterized in that: The pitch of the second blade (403) gradually decreases.

10. The multi-stage buffer spiral juicing device as described in claim 6, characterized in that: The pitch of the first blade (402) is constant or gradually decreases.

Images