Multi-stage grinding processing device for non-edible vegetable oil

Abstract

The invention discloses a non-edible vegetable oil multi-stage grinding processing device, and relates to the technical field of vegetable oil grinding processing, the non-edible vegetable oil multi-stage grinding processing device comprises a filter screen, a scraper driven to approach and fit the filter screen to tighten the filter screen, and a cutter used for assembling the scraper, and the length of the scraper is equal to the radius of the filter screen; the scraper comprises compression rollers which are slidably arranged and symmetrically assembled in the scraper in the axial direction, and a grinding cavity is formed between the compression rollers and the cutter. According to the multi-stage grinding and processing device for the non-edible vegetable oil, the filter screen is tightened, so that the distribution positions of unground raw material particles and ground and crushed raw material particles are changed, the raw material particles are not retained on one side of the filter screen any more, and the raw material particles are uniformly ground through acting force generated by continuous rotation of the upper part of the compression roller and extrusion of the inner wall of the cutter on the raw material; the large-particle-size raw materials are pulverized, concentrated pressure applied to the filter screen is reduced, pulverized powder is discharged along the upper surface of the second side of the scraper and cannot be continuously accumulated at the original position, and the efficiency of the filter screen is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vegetable oil grinding and processing, in particular to a multi-stage grinding and processing device for non-edible vegetable oil. Background Art

[0002] Non-edible vegetable oils refer to vegetable oils obtained through a series of operations such as shelling and crushing of plants such as tung oil and castor oil. The multi-stage grinding processing of non-edible vegetable oils mainly involves grinding vegetable oils with mixed particles to improve their quality and application value.

[0003] In conjunction with publication number CN115364986A, publication date 2022-11-22, a multi-stage grinding device for processing non-edible vegetable oil mixed with powder is disclosed, including a grinding frame and a grinding wheel. During the circular rotation of the rotating shaft, the meshing between the first circular gear and the internal gear can ensure that the rotating shaft rotates while the grinding wheel rotates in the grinding frame, thereby being able to perform three-stage grinding processing on the raw materials delivered to the grinding frame. The grinding wheel rotates and crushes the plants in the grinding chamber, and the plant particles are thoroughly ground between the grinding wheel and the filter screen and the oil is squeezed out.

[0004] However, in the prior art including the above-mentioned patent, the particles in the vegetable oil that are not fully ground will gather at the lower part of the filter under the action of gravity, forming a thicker sedimentation layer. When the grinding wheel passes through the sedimentation layer, it will preferentially crush the plant particles located above, and due to the obstruction of the larger-sized plant particles below, the crushed particles cannot pass through the filter immediately, affecting the filtration efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a non-edible vegetable oil multi-stage grinding and processing device to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-stage grinding and processing device for non-edible vegetable oil, comprising a filter screen, a scraper driven to fit the filter screen to tighten it, and a cutter for assembling the scraper, wherein the length of the scraper is equal to the radius of the filter screen;

[0007] The scraper comprises a sliding pressure roller symmetrically assembled in the scraper along the axial direction, and a crushing cavity is formed between the pressure roller and the cutter, wherein:

[0008] The centrifugal directions of the cutter and the pressure roller are opposite to each other, so that the intersection of the centrifugal directions of the cutter and the pressure roller forms a force to guide the particles scraped by the scraper into the crushing chamber.

[0009] Preferably, the invention further comprises a blade holder for the scraper to move in an oblique direction, and the blade holder is equipped with a locking mechanism for placing the scraper in a ready-to-fire state, wherein the locking mechanism is used to be activated when the scraper is pushed away by the deposits on the filter screen;

[0010] The locking mechanism includes a rotating rod rotatably arranged relative to the scraper and a guide slide groove opened on the tool holder, and the guide slide groove includes a retention groove for locking the rotating rod and a slide rail symmetrically arranged about the retention groove and used to guide the end of the sliding rotating rod. The scraper is pushed down, and the end of the rotating rod is staggered with the retention groove.

[0011] Preferably, it also includes a transmission rod that is slidably matched with the rotating shaft of the rotating rod, and a first spring is provided on the transmission rod for driving the transmission rod to approach the filter screen.

[0012] Preferably, it also includes a feed port extending into the filter screen and a blocking block slidably disposed on the port along the axial direction of the filter screen and used to block the port, and the blocking block and the scraper keep synchronous movement so that the distance between the blocking block and the port is adjustable.

[0013] Preferably, a plurality of cables for pulling the filter screen are arranged on the block, the filter screen comprises a first filter layer and a second filter layer, and the ends of the cables are divided into two strands which are respectively fixedly connected to the edges of the first filter layer and the second filter layer, so that the distance between the first filter layer and the second filter layer decreases as the tension increases.

[0014] Preferably, the filter screen is provided with scale-like portions in a linear array, and the scale-like portions are switchable between two states: vertical or inclined relative to the filter screen.

[0015] Preferably, it also includes an inclined block ring symmetrically and slidably arranged in the cutter, which is used to drive the two pressure rollers to move toward or away from each other.

[0016] Preferably, a support frame for fixing the filter screen is further included, and a transmission gear coupled to the support frame is fixedly provided at the end of the pressure roller.

[0017] Preferably, the guide groove includes a starting end, and the distance between the pressure roller and the cutter at the starting end is the largest, and the port is in close contact with the block.

[0018] Preferably, an upper stopper and a lower stopper are relatively arranged in the guide groove, and when the pressure roller is coupled with the support frame, the upper stopper and the lower stopper restrict the rotating rod from entering the starting end.

[0019] In the above technical scheme, a multi-stage grinding and processing device for non-edible vegetable oil provided by the present invention has the following beneficial effects: by tightening the filter screen, the distribution positions of the un-crushed raw material particles and the crushed raw material particles are changed, and they are no longer retained on one side of the filter screen, and the force generated by the continuous rotation of the upper part of the pressure roller and the squeezing of the raw material by the inner wall of the cutter enable the large-particle size raw material to be crushed, reducing the concentrated pressure on the filter screen, and allowing the crushed powder to be discharged along the upper surface of the second side of the scraper, and will not continue to accumulate in the original position, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a cutaway structure of a housing provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a cutter and a scraper provided in an embodiment of the present invention;

[0024] Figure 4 An exploded schematic diagram of the internal structure provided by an embodiment of the present invention;

[0025] Figure 5 The embodiment of the present invention provides Figure 4 Middle A is an enlarged schematic diagram;

[0026] Figure 6 A schematic diagram of the structure of a tool holder and a locking assembly provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a cutter, a fixed slide seat, and an inclined block ring provided in an embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the position of the pressing roller with the protrusion provided in the embodiment of the present invention being located at the starting end;

[0029] Fig. 9 A schematic diagram of the position of the pressing roller when the convex block and the guide block abut against each other provided in an embodiment of the present invention;

[0030] Fig.10 A schematic diagram of the position of the pressure roller with the protrusion located under the retention groove provided in the embodiment of the present invention;

[0031] Fig.11 A schematic diagram of the position of the pressing roller with the protrusion provided by the embodiment of the present invention being located at the intersection;

[0032] Fig.12 A schematic diagram of the positions of the upper stopper, the lower stopper and the guide slot provided in an embodiment of the present invention;

[0033] Fig.13 A schematic diagram of the positions of the upper stopper, the lower stopper and the guide slot provided in an embodiment of the present invention;

[0034] Fig.14 A schematic diagram of the filter structure in a relaxed state provided by an embodiment of the present invention;

[0035] Fig.15 A schematic diagram of the filter structure in a tensioned state provided by an embodiment of the present invention;

[0036] Fig.16 A schematic diagram of the position of the cutter and the particle layer provided in an embodiment of the present invention;

[0037] Fig.17 A schematic diagram of the oil flow direction after the pressure roller provided in an embodiment of the present invention is excited.

[0038] Description of reference numerals:

[0039] 1. Casing; 2. Feed inlet; 3. Drive shaft; 41. Transmission rod; 42. First spring; 5. Block; 6. Support frame; 61. Teeth; 7. Filter screen; 71. First filter layer; 72. Second filter layer; 73. Scaly portion; 8. Knife holder; 81. Guide slot; 83. Retention slot; 84. Guide block; 85. Upper block; 86. Lower block; 87. Second spring; 91. Cutter; 911. Inclined surface; 92. Fixed slide; 921. Rotating rod; 922. Bump; 93. Pressing roller; 94. Transmission gear; 95. Third spring; 96. Inclined block collar; 97. Push rod; 98. Scraper; 10. Cable. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] like Figure 1-15 As shown, a non-edible vegetable oil multi-stage grinding processing device is used for grinding vegetable oil containing some plant particles, comprising a filter screen 7, a scraper 98 driven to fit the filter screen 7 to make it tight, and a cutter 91 for assembling the scraper 98, and the length of the scraper 98 is equal to the radius of the filter screen 7;

[0042] The scraper 98 includes a pressing roller 93 which is slidably arranged and symmetrically assembled in the scraper 98 along the axial direction, and a crushing chamber is formed between the pressing roller 93 and the cutter 91, wherein:

[0043] The centrifugal directions of the cutter 91 and the pressure roller 93 are opposite to each other, so that the intersection of the centrifugal directions of the cutter 91 and the pressure roller 93 forms a force to guide the particles scraped by the scraper 98 into the crushing chamber.

[0044] Specifically, the above embodiment also includes a housing 1 and a drive motor, and a drive shaft 3, which is the output shaft of the drive motor, is used to drive the cutter 91 and the scraper 98 to rotate, thereby driving the scraper 98 to rotate and grind the raw material to crush the suspended plant particles. When the raw material is deposited and accumulated on one side of the filter screen 7, the surface layer of the raw material close to the scraper 98 is first crushed into small particles. However, the bottom layer is still large-sized particles, such as Fig.16 As shown, at this time, the driving scraper 98 extends outward from the inside of the cutter 91 and approaches the filter screen 7, driving the filter screen 7 from the relaxed arc state to gradually tighten into an inclined surface, so that the large-particle-size raw materials attached to the filter screen 7 roll down along the tightened inclined surface again, and the small-particle-size raw materials with lighter surface weight float up from the original deposition position and pass through the filter screen 7, avoiding being blocked by the large-particle-size raw materials at the bottom and unable to be screened out in time. A secondary filter membrane is provided on the discharge port of the housing 1, the purpose of which is to screen out the small-particle-size raw materials again, so that the discharged vegetable oil is purer.

[0045] Furthermore, the pressure roller 93 is divided into an upper part and a lower part with the scraper 98 as the boundary. The scraper 98 drives the pressure roller 93 to be close to the filter screen 7, and the pores of the filter screen 7 are cleared and blocked by a plurality of cutting blades arranged in a circumferential array on the pressure roller 93. At the same time, the scraper 98 scoops up the large-sized raw materials gathered on the filter screen 7 and slides along the upper surface of the first side of the scraper 98. Since the centrifugal directions of the pressure roller 93 and the scraper 98 on the adjacent sides are opposite, the cutting blade drives the vegetable oil to form a small turbulence toward between the pressure roller 93 and the cutter 91. The turbulence drives the large-sized raw materials into the crushing chamber. The large-sized raw materials are crushed by the force generated by the continuous rotation of the upper part of the pressure roller 93 and the squeezing of the raw materials by the inner wall of the cutter 91. Different from the conventional method of grinding and crushing the raw materials through the gap between the filter screen 7 and the scraper 98, the concentrated pressure on the filter screen 7 is reduced, which also makes the crushed small-sized raw materials discharged along the upper surface of the second side of the scraper 98 and suspended in the vegetable oil, and will not continue to accumulate in the original position.

[0046] The scraper 98 may be driven by a pressure sensor disposed on the scraper 98. When the pressure sensor detects that the particles on the scraper 98 reach a predetermined value, the motor or electric telescopic rod is driven by electrical connection to extend the scraper 98. An endoscope may also be provided for manual observation, and when accumulation is found, a signal is sent to drive the motor or electric telescopic rod, or other driving methods known to those skilled in the art may be used.

[0047] It should be noted that the electronic components and electronic control programs in the above embodiments are well known to those skilled in the art, and therefore will not be described in detail.

[0048] In the above technology, the distribution positions of un-crushed raw material particles and crushed raw material particles are changed by tightening the filter 7, and they are no longer retained on one side of the filter 7. The force generated by the continuous rotation of the upper part of the pressure roller 93 and the squeezing of the raw material by the inner wall of the cutter 91 enable the large-size raw materials to be crushed, reducing the concentrated pressure on the filter 7, and allowing the crushed powder to be discharged along the upper surface of the second side of the scraper 98 and will not continue to accumulate in the original position, thereby improving the screening efficiency.

[0049] As an embodiment further provided by the present invention, the above embodiment further comprises a blade holder 8 for the scraper 98 to move in an oblique direction, and the blade holder 8 is equipped with a locking mechanism that puts the scraper 98 in a ready-to-fire state, and the locking mechanism is used to be activated when the scraper 98 is pushed away by the deposits on the filter screen 7;

[0050] The locking mechanism includes a rotating rod 921 rotatably arranged relative to the scraper 98 and a guide groove 81 opened on the tool holder 8, and the guide groove 81 includes a retention groove 83 for locking the rotating rod 921 and a slide rail symmetrically arranged about the retention groove 83 and used to guide the end of the sliding rotating rod 921. When the scraper 98 is pushed down, the end of the rotating rod 921 is staggered with the retention groove 83.

[0051] Specifically, the scraper 98 includes a fixed slide 92 fixedly set in the middle of the scraper 98, the fixed slide 92 is slidably set at the end of the tool holder 8, and the two pressure rollers 93 are symmetrically rotated and slidably set at the two ends of the fixed slide 92. A second spring 87 is set between the tool holder 8 and the scraper 98. The second spring 87 uses its own elastic force to make the scraper 98 have a tendency to approach the filter 7. The extension paths of multiple scrapers 98 are perpendicular to the bucket-shaped surface where the filter 7 is located, that is, the scraper 98 moves obliquely, and the rotating rod 921 is rotatably set on the fixed slide 92, and thus is rotatably set relative to the scraper 98.

[0052] Furthermore, the guide groove 81 is shaped as Figure 6As shown, a protrusion 922 is fixedly provided at the end of the rotating rod 921 so as to slide in the guide groove 81. The position of the retention groove 83 is taken as the second side of the guide groove 81, and the intersection of the two slide rails is located on the first side of the guide groove 81. A guide block 84 is provided on the second side of the guide groove 81, and the guide block 84 faces the retention groove 83. When the protrusion 922 is located in the retention groove 83, the elastic force direction of the second spring 87 on the scraper 98 is opposite to the resistance direction of the retention groove 83 on the protrusion 922, so that the protrusion 922 is locked, so that the rotating rod 921 and the fixed slide seat 92 are locked, and the scraper 98 is in an unactivated state. When the scraper 98 is pushed by the particles, first, the second spring 87 contracts and stores energy again, and the scraper 98 drives the fixed slide 92 to move toward the direction close to the tool holder 8. During the displacement, the rotating rod 921 moves toward the second side of the guide slide 81, and the protrusion 922 slides out of the retention groove 83, so that the protrusion 922 is staggered with the retention groove 83. At the same time, the protrusion 922 is guided by the guide block 84, and the rotating rod 921 deflects so that the protrusion 922 enters the slide rail. At this time, the protrusion 922 is no longer blocked by the retention groove 83, and the elastic potential energy of the second spring 87 is released, pushing the scraper 98 and the fixed slide 92 to slide away from the tool holder 8. At this time, the scraper 98 is excited and approaches the filter 7, so that the scraper 98 is automatically triggered after being pressed, and other electronic components such as pressure sensors are not required, so that the transmission process is relatively simple, timely and effective, and the maintenance cost is reduced. The rotating rod 921 drives the protrusion 922 to slide to the intersection of the slide rail and stops, and the scraper 98 stops approaching to avoid elastic fatigue of the filter screen 7 under excessive pressure, which may cause physical damage to the structure.

[0053] Furthermore, when the scraper 98 needs to be restored to the unactivated state, the elastic force needs to be overcome. The scraper 98 is driven close to the blade holder 8, so that the second spring 87 begins to accumulate force and drives the rotating rod 921 toward the second side of the guide slide groove 81. At this time, the protrusion 922 slides along the slide rail until it contacts the guide block 84 and is guided by the guide block 84, so that the rotating rod 921 is deflected, and the protrusion 922 enters the retention groove 83, and then no longer pushes the scraper 98, so that the elastic potential energy of the second spring 87 is partially released, pushing the scraper 98 and the fixed slide 92 to move a short distance, and the protrusion 922 is pulled to contact the retention groove 83, and the protrusion 922 is locked.

[0054] As another embodiment further provided by the present invention, it also includes a transmission rod 41 that is slidably matched with the rotation shaft of the rotation rod 921, and is provided with a first spring 42 for driving the transmission rod 41 to approach the filter screen 7.

[0055] Specifically, there are multiple transmission rods 41 and scrapers 98 and they correspond to each other. Multiple transmission rods 41 are slidably sleeved on the drive shaft 3 in a circular array. When the drive shaft 3 rotates, it drives the transmission rod 41 and the tool holder 8 to rotate synchronously. When the scraper 98 is not activated, the protrusion 922 is located in the retention groove 83, so that the rotating rod 921 and the transmission rod 41 remain stationary. The first spring 42 is restricted in a retracted state by the transmission rod 41. When one of the scrapers 98 is pushed down by the particles, the scraper 98 and the fixed slide 92 both slide toward the direction of the tool holder 8, driving the rotating rod 921 to move in the same direction, thereby driving the transmission rod 41 away from the filter screen 7. At this time, all the scrapers 98 move synchronously through the transmission rod 41, the first spring 42 contracts again, and all the protrusions 922 are out of the retention groove 83 without being locked. At this time, the first spring 42 is released, driving the transmission rod 41 toward the filter screen 7, and pushing the rotating shaft of the transmission rod 41 to move away from the knife holder 8. All scrapers 98 are in an excited state. Through the setting of the transmission rod 41, multiple scrapers 98 are linked. When one of them is pushed by the particles and excited, it drives the other scrapers 98 to be excited. Multiple pressure rollers 93 are pressed against the filter screen 7 synchronously, and cooperate with the cutter 91 to form multiple small turbulences leading to the grinding chamber. These turbulences are relatively stable and can drive the particles to fully diffuse in the oil flow. In addition, the small turbulence is blocked after passing through the grinding chamber, so a small vortex will be formed on the opposite side of the moving direction of the knife holder 8, which further plays a role in dispersing particles and reducing sedimentation. The pressure of multiple scrapers 98 excited at the same time on the filter screen 7 is more uniform than that of a scraper 98 excited alone, reducing the elastic fatigue of the filter screen 7 caused by stress concentration.

[0056] As another embodiment further provided by the present invention, it also includes a feed port 2 extending into the filter screen 7 and a block 5 slidably set at the port along the axial direction of the filter screen 7 and used to seal the port, and the block 5 and the scraper 98 maintain synchronous movement so that the distance between the block 5 and the port is adjustable.

[0057] Specifically, the block 5 is fixedly connected to the transmission rod 41, and the block 5 is slidably sleeved on the drive shaft 3, and the scraper 98 is closely attached to the filter screen 7 after being excited. At this time, the protrusion 922 is located at the intersection of the slide rail, and the transmission rod 41 approaches the filter screen 7 under the elastic action of the first spring 42, thereby driving the block 5 to block the port of the feed inlet 2. During feeding, the oil pressure of the vegetable oil will push the block 5 to overcome the elasticity of the first spring 42 and stagger with the port, thereby driving the transmission rod 41 away from the filter screen 7 and driving the rotating rod 921 to approach the direction of the knife holder 8, the protrusion 922 slides into the retention groove 83 along the slide rail, and the vegetable oil enters the housing 1 between the block 5 and the port. The direction of the force of the vegetable oil on the block 5 is no longer only directed to the center of the block 5, so the direct force of the oil pressure on the block 5 is reduced, so that the first spring 42 is relaxed and drives the protrusion 922 to resist and lock with the retention groove 83, realizing automatic feeding. And when feeding, the scraper 98 is charged. Then, when the particle deposition layer in the vegetable oil reaches a certain thickness, the scraper 98 is activated and drives the transmission rod 41 to approach the filter screen 7, thereby driving the block 5 to block the port, stopping feeding, and reducing the accumulation of particles from the source. During the period of stopping feeding, the large-size particles are first crushed into small-size particles and then discharged through the cooperation of the pressure roller 93 and the cutter 91, so as to avoid excessive load on the knife holder 8 caused by too many large-size particles. At the same time, the vegetable oil intercepted outside is still added until the oil pressure overcomes the elastic force of the first spring 42, so that the vegetable oil enters again. At this time, the number of large-size particles in the filter screen 7 is reduced, and most of them are discharged after being crushed, and can continue to accommodate new particles.

[0058] As another embodiment further provided by the present invention, a plurality of cables 10 for pulling the filter screen 7 are arranged on the block 5. The filter screen 7 includes a first filter layer 71 and a second filter layer 72. The ends of the cables 10 are divided into two strands and are respectively fixedly connected to the edges of the first filter layer 71 and the second filter layer 72, so that the distance between the first filter layer 71 and the second filter layer 72 decreases as the tension increases.

[0059] Specifically, the first end of the cable 10 is fixedly connected to the block 5, and the second end is divided into two strands connected to the edges of the first filter layer 71 and the second filter layer 72 respectively. The edges of the first filter layer 71 and the second filter layer 72 are both close to the bottom of the inner wall of the housing 1. The cable 10 is a plurality of inelastic flexible ropes. The first filter layer 71 and the second filter layer 72 are hollow interlayers with a certain spacing, so that there is an angle between the two strands of ropes. When the scraper 98 is in the excited state, the transmission rod 41 is driven to approach the filter screen 7 through the rotating rod 921. At this time, the transmission rod 41 drives the block 5 to approach the port of the feed port 2. The block 5 pulls the first ends of the plurality of cables 10, so that the second ends are tensioned, thereby driving the angle between the two strands of ropes to decrease, shortening the spacing between the first filter layer 71 and the second filter layer 72, and thinning the overall thickness of the filter screen 7. Therefore, the oil film attached to the filter screen 7 becomes thinner, reducing the resistance of the oil flow passing through, thereby accelerating the oil flow passing rate. Furthermore, since the first filter layer 71 and the second filter layer 72 are deformed to different degrees by the pulling of the cable 10, they are relatively displaced, and the filter holes of the two layers are staggered, so that the actual passing pores are smaller, thereby preventing particles from passing through the filter holes that have become longer due to pulling.

[0060] As another embodiment further provided by the present invention, the filter screen 7 is provided with scale-like portions 73 in a linear array, and the scale-like portions 73 can be switched between two states of being vertical or inclined relative to the filter screen 7 .

[0061] Specifically, the scaly portion 73 is located between the first filter layer 71 and the second filter layer 72, and the end of the scaly portion 73 extends into the second filter layer 72. The scaly portion 73 and the first filter layer 71 and the second filter layer 72 enclose a double-layer filter hole. By setting the scaly portion 73, the structural stability between the first filter layer 71 and the second filter layer 72 can be strengthened and a certain distance between the two can be maintained. At the same time, the spike-like end of the scaly portion 73 can puncture or grip the attached particles in a vertical state, and cooperate with the cutter 91 to break the particles, and can reduce the clogging of particles in the filter hole. When the first filter layer 71 and the second filter layer 72 are deformed differently due to the pulling of the cable 10, the two produce relative displacement, so that the scaly portion 73 switches to an inclined state, such as Fig.15As shown. When the angle generated by the tilt of the scale-like portion 73 points to the edge of the filter screen 7, the double-layer filter holes are tilted at this time. When the oil flows through, it flows along the tilted filter holes and flushes the surface of the first filter layer 71, reducing the occurrence of blockage. After the vegetable oil is ground, the drive shaft 3 and the tool holder 8 stop rotating, the block 5 blocks the port, and the filter screen 7 is still in a taut state due to the traction of the cable 10. At this time, the scale-like portion 73 is in a tilted state. Due to the large surface tension of the vegetable oil, according to the autonomous orientation phenomenon of the different surface tension fluids induced by the capillary serration structure, the liquid with a large surface tension first gathers above the serrations, and the solid-liquid interface contact angle is large, gradually infiltrating the serrations, that is, the scale-like portion 73, from top to bottom, so that the vegetable oil film is affected by the surface tension in a static state and flows from top to bottom along the inclined surface of the scale-like portion 73, and spontaneously gathers to the edge of the filter screen 7. This prevents the particles from adhering to the filter surface of the filter screen 7 for a long time and mixing with the particles that have not been screened out, thereby polluting the filter surface. At the same time, it also makes the residual oil film on the filter screen 7 easier to clean and collect.

[0062] As another embodiment further provided by the present invention, it also includes a ramp ring 96 symmetrically and slidably arranged in the cutter 91, which is used to drive the two pressure rollers 93 to move toward or away from each other.

[0063] Specifically, the inclined block ring 96 is coaxially sleeved on the ends of the two pressure rollers 93, and the inclined block ring 96 is rotatably arranged relative to the pressure roller 93. A third spring 95 is arranged between the pressure roller 93 and the fixed slide 92. The inclined block ring 96 is slidably matched with the inclined surface 911 fixedly arranged on the inner wall of the cutter 91. When the scraper 98 is in an unactivated state, the scraper 98 and the pressure roller 93 are located inside the cutter 91. At this time, the distance between the two pressure rollers 93 is the shortest, and the third spring 95 is in a compressed and force-accumulating state. When the scraper 98 is activated, the pressure roller 93 slides out of the cutter 91, and the inclined block ring 96 slides along the inclined surface 911, so that the two pressure rollers 93 move in opposite directions and contact the filter screen 7 during the movement, so that the two pressure rollers 93 have a scraping and impurity-removing effect on the filter screen 7. When the scraper 98 is in the unactivated state again, the two pressure rollers 93 move upward to the inside of the cutter 91 , and the inclined surface 911 pushes the inclined block ring 96 , driving the pressure rollers 93 to move toward each other. At this time, the upper part of the pressure rollers 93 is accommodated in the cutter 91 .

[0064] As another embodiment further provided by the present invention, it also includes a support frame 6 for fixing the filter screen 7 , and a transmission gear 94 coupled to the support frame 6 is fixedly provided at the end of the pressure roller 93 .

[0065] Specifically, when the scraper 98 is in the excited state, the pressure roller 93 slides out of the inside of the cutter 91, and the inclined block ring 96 slides along the inclined surface 911, so that the two pressure rollers 93 move in opposite directions, and drive the transmission gear 94 to mesh with the teeth 61 fixedly set on the support frame 6, and the transmission gear 94 is restricted by the baffle protruding from the support frame 6. At this time, the transmission gear 94 is coupled with the support frame 6, so that the transmission gear 94 is pressed against the baffle by the elastic force of the third spring 95, thereby ensuring the stable meshing of the transmission gear 94 with the teeth 61. At this time, the side of the transmission gear 94 close to the cutter 91 is meshed with the teeth 61, so when the cutter 91 is driven by the cutter frame 8 to rotate, the transmission gear 94 meshes with the support frame 6 and rotates (the rotation direction is consistent with the rotation direction of the cutter frame 8). The cutter 91 pushes against the vegetable oil during its rotation, causing the vegetable oil to generate resistance in the opposite direction. Since a grinding chamber for the vegetable oil to pass through is formed between the cutter 91 and the pressure roller 93, the flow direction of the vegetable oil through the grinding chamber is opposite to that of the cutter 91. The turbulence direction formed by the rotation of the transmission gear 94 and the pressure roller 93 for the vegetable oil also points to the grinding chamber, so that the vegetable oil drives the particles into the grinding chamber.

[0066] In the above technology, once the particles in the filter 7 push against the scraper 98, the scraper 98 will be stimulated and the block 5 will block the port. It is necessary to wait for the oil pressure to push against the block 5 again before continuing to feed, which prolongs the overall grinding time.

[0067] As an embodiment further provided by the present invention to solve the above-mentioned problem, the guide groove 81 includes a starting end, and the distance between the pressure roller 93 and the cutter 91 at the starting end is the largest, and the port is in close contact with the blocking block 5.

[0068] Specifically, the starting end is located at the first side of the guide slide 81 and is an extension of one of the slide rails. When the projection 922 is located in the starting end, the distance between the rotating rod 921 and the fixed slide 92 and the end of the tool holder 8 is the largest, and the blocking block 5 is driven by the transmission rod 41 to completely block the port. When the projection 922 is located at the intersection of the two slide rails, the transmission gear 94 is meshed with the teeth 61 fixedly arranged on the support frame 6 for transmission, and the transmission gear 94 is restricted by the baffle protruding from the support frame 6. The transmission gear 94 is coupled with the support frame 6. Due to the supporting effect of the baffle on the support frame 6 on the transmission gear 94, the transmission gear 94 is restricted to this position. As a result, the positions of the fixed slide 92 and the rotating rod 921 are fixed, and the positions of the transmission rod 41 and the blocking block 5 are also fixed. The force of the oil pressure on the blocking block 5 and the supporting force of the support frame 6 on the transmission gear 94 form a combined force to overcome the elasticity of the first spring 42. At this time, there is a distance between the blocking block 5 and the port, so that the amount of vegetable oil intake is reduced but continuously supplied. When no more material is fed, the force exerted by the oil pressure on the block 5 is reduced, so that the potential energy accumulated in the first spring 42 is released, and the block 5 is driven to close the port at this time, which can avoid the overload problem caused by continuous large-scale feeding and ensure continuous low-amount feeding of grinding without taking too long.

[0069] As an embodiment further provided by the present invention to solve the above-mentioned problem, an upper stopper 85 and a lower stopper 86 are relatively arranged in the guide groove 81, and when the pressure roller 93 is coupled with the support frame 6, the upper stopper 85 and the lower stopper 86 restrict the rotating rod 921 from entering the starting end.

[0070] Specifically, the adjacent ends of the two pressure rollers 93 are rotatably provided with a lever 97, and the lever 97 is slidably matched with the upper stopper 85 and the lower stopper 86. When the transmission gear 94 is coupled with the support frame 6, the protrusion 922 is located at the intersection of the two slide rails, and the upper stopper 85 and the lower stopper 86 are driven by the two pressure rollers 93 to approach each other and prevent the protrusion 922 from sliding into the starting end. Fig.12 In the state shown, the protrusion 922 is prevented from mistakenly entering the starting end and causing the block 5 to completely block the port. In the process of gradually stopping the oil inlet, the elastic potential energy of the first spring 42 is released, so that the transmission rod 41 drives the rotating shaft of the rotating rod 921 to move toward the port, and the scraper 98 is closely attached to the filter screen 7. At this time, the transmission gear 94 is separated from the support frame 6, and the pressure roller 93 loses the restriction of the support frame 6 and drives the upper block 85 and the lower block 86 to move away from each other, so that the starting end is completely open, and the protrusion 922 enters the starting end.

[0071] Working principle: first, the torque is output through the driving shaft 3 to drive the tool holder 8 to rotate. At this time, the protrusion 922 is located inside the starting end, and the distance between the rotating rod 921 and the fixed slide 92 and the end of the tool holder 8 is the largest. The blocking block 5 is driven by the transmission rod 41 to completely block the port. During feeding, the oil pressure of the vegetable oil will push the block 5 to overcome the elasticity of the first spring 42 and offset it from the port, thereby driving the transmission rod 41 away from the filter screen 7 and driving the rotating rod 921 toward the direction of the tool holder 8. The protrusion 922 slides into the retention groove 83 along the slide rail, and the force storage of the scraper 98 is simultaneously completed during feeding. Subsequently, the particle deposition layer in the vegetable oil reaches a certain thickness, causing the second spring 87 to contract and store energy again, and the scraper 98 drives the fixed slide 92 to move toward the direction close to the tool holder 8. During the displacement process, the rotating rod 921 is driven to move toward the second side of the guide slide groove 81, and the protrusion 922 slides out of the retention groove 83, causing the protrusion 922 to be offset from the retention groove 83. At the same time, the protrusion 922 is guided by the guide block 84, and the rotating rod 921 is deflected to cause the protrusion 922 to enter the slide rail. At this time, the protrusion 922 is no longer blocked by the retention groove 83, and the elastic potential energy of the second spring 87 is released, pushing the scraper 98 and the fixed slide 92 to slide away from the knife holder 8. The rotating rod 921 drives the transmission rod 41 to approach the filter screen 7. At this time, the transmission rod 41 drives the blocking block 5 to approach the port of the feed inlet 2. The blocking block 5 pulls the first end of the multiple cables 10 to make the second end tense, thereby driving the angle between the two strands of ropes to decrease, shortening the distance between the first filter layer 71 and the second filter layer 72, and thinning the overall thickness of the filter screen 7. In addition, due to the different degrees of deformation of the first filter layer 71 and the second filter layer 72 caused by the pulling of the cable 10, the two are relatively displaced, so that the scale-like portion 73 switches to an inclined state, such as Fig.15As shown. When the angle generated by the tilt of the scale-like portion 73 points to the edge of the filter screen 7, the double-layer filter hole is tilted at this time, and the oil flows along the tilted filter hole when passing through, and washes the surface of the first filter layer 71. When the scraper 98 is in the excited state, the pressure roller 93 slides out of the inside of the cutter 91, and the inclined block ring 96 slides along the inclined surface 911, so that the two pressure rollers 93 move in opposite directions, and drive the transmission gear 94 to mesh with the teeth 61 fixed on the support frame 6, and the transmission gear 94 is limited by the baffle protruding from the support frame 6. At this time, the transmission gear 94 is coupled with the support frame 6, so that the transmission gear 94 is pressed against the baffle by the elastic force of the third spring 95, thereby ensuring the stable meshing of the transmission gear 94 with the teeth 61. At this time, the side of the transmission gear 94 close to the cutter 91 is meshed with the teeth 61, so when the cutter 91 is driven by the cutter 8 to rotate, the transmission gear 94 is meshed with the support frame 6 and rotates (the rotation direction is consistent with the rotation direction of the cutter 8). During the rotation of the cutter 91, the vegetable oil is pushed, so that the vegetable oil generates resistance in the opposite direction under the push. Since a grinding chamber for the vegetable oil to pass through is formed between the cutter 91 and the pressure roller 93, the flow direction of the vegetable oil through the grinding chamber is opposite to that of the cutter 91. The turbulent direction of the vegetable oil formed by the rotation of the transmission gear 94 and the pressure roller 93 also points to the grinding chamber, so that the vegetable oil drives the particles into the grinding chamber. The transmission gear 94 is coupled with the support frame 6. Due to the support effect of the baffle on the transmission gear 94 on the support frame 6, the transmission gear 94 is restricted to this position. As a result, the positions of the fixed slide 92 and the rotating rod 921 are fixed, and the positions of the transmission rod 41 and the block 5 are also fixed. The force of the oil pressure on the block 5 and the support force of the support frame 6 on the transmission gear 94 form a combined force to overcome the elasticity of the first spring 42. At this time, there is a gap between the block 5 and the port, so that the amount of vegetable oil intake is reduced but the supply is continuous. When the feed is no longer being fed, the force exerted by the oil pressure on the block 5 is reduced, so that the potential energy accumulated in the first spring 42 is released, and the block 5 is driven to close the port. The filter screen 7 is still in a taut state due to the traction of the cable 10. At this time, the scaly portion 73 is in an inclined state. Due to the large surface tension of the vegetable oil, according to the autonomous orientation phenomenon of the fluid with different surface tensions induced by the capillary sawtooth structure, the liquid with large surface tension first gathers above the sawtooth, and the solid-liquid interface contact angle is large, gradually infiltrating the sawtooth, that is, the scaly portion 73, from top to bottom, so that the vegetable oil film is affected by the surface tension in a static state and flows from top to bottom along the inclined surface of the scaly portion 73, and spontaneously gathers to the edge of the filter screen 7.

[0072] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage grinding and processing device for non-edible vegetable oil, comprising a filter screen (7), characterized in that: It comprises a scraper (98) driven to fit closely to the filter screen (7) to make it tight, and a cutter (91) used to assemble the scraper (98), and the length of the scraper (98) is equal to the radius of the filter screen (7); The scraper (98) comprises a pressure roller (93) which is slidably arranged and symmetrically assembled in the scraper (98) along the axial direction, and a crushing chamber is formed between the pressure roller (93) and the cutter (91), wherein: The centrifugal directions of the cutter (91) and the pressure roller (93) are opposite, so that the intersection of the centrifugal directions of the cutter (91) and the pressure roller (93) forms a force to guide the particles scraped by the scraper (98) into the crushing chamber.

2. A multi-stage grinding and processing device for non-edible vegetable oil according to claim 1, characterized in that: It also includes a blade holder (8) for the scraper (98) to move in an oblique direction, and the blade holder (8) is equipped with a locking mechanism for placing the scraper (98) in a ready-to-fire state, wherein the locking mechanism is used to be activated when the scraper (98) is pushed away by deposits on the filter screen (7); The locking mechanism comprises a rotating rod (921) rotatably arranged relative to the scraper (98) and a guide slide groove (81) provided on the tool holder (8), and the guide slide groove (81) comprises a retention groove (83) for locking the rotating rod (921) and a slide rail symmetrically arranged with respect to the retention groove (83) and used for guiding the end of the sliding rotating rod (921); when the scraper (98) is pushed downward, the end of the rotating rod (921) is offset from the retention groove (83).

3. A multi-stage grinding and processing device for non-edible vegetable oil according to claim 2, characterized in that: It also includes a transmission rod (41) that is slidably matched with the rotating shaft of the rotating rod (921), and is provided with a first spring (41) for driving the transmission rod (41) to approach the filter screen (7).

4. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 1, characterized in that: It also includes a feed port (2) extending into the filter screen (7) and a blocking block (5) slidably disposed on the port along the axial diameter direction of the filter screen (7) and used to block the port, and the blocking block (5) and the scraper (98) maintain synchronous movement so that the distance between the blocking block (5) and the port is adjustable.

5. A multi-stage grinding and processing device for non-edible vegetable oil according to claim 4, characterized in that: The block (5) is provided with a plurality of cables (10) for pulling the filter screen (7), the filter screen (7) comprising a first filter layer (71) and a second filter layer (72), and the ends of the cables (10) are divided into two strands which are respectively fixedly connected to the edges of the first filter layer (71) and the second filter layer (72), so that the distance between the first filter layer (71) and the second filter layer (72) decreases as the tension increases.

6. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 1, characterized in that: The filter screen (7) is provided with scale-like portions (73) in a linear array, and the scale-like portions (73) can be switched between two states: vertical or inclined relative to the filter screen (7).

7. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 1, characterized in that: It also includes a ramp ring (96) symmetrically and slidably arranged inside the cutter (91), which is used to drive the two pressure rollers (93) to move towards or away from each other.

8. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 1, characterized in that: It also includes a support frame (6) for fixing the filter screen (7), and a transmission gear (94) coupled to the support frame (6) is fixedly provided at the end of the pressure roller (93).

9. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 2, characterized in that: The guide groove (81) includes a starting end, and the distance between the pressure roller (93) and the cutter (91) located at the starting end is the largest, and the port is in close contact with the blocking block (5).

10. The multi-stage grinding and processing device for non-edible vegetable oil according to claim 9, characterized in that: An upper stopper (85) and a lower stopper (86) are arranged opposite to each other in the guide groove (81), and when the pressure roller (93) is coupled with the support frame (6), the upper stopper (85) and the lower stopper (86) restrict the rotating rod (921) from entering the starting end.

Images