Five-stage grading screen for spices

Abstract

The utility model relates to the technical field of spice screening, and discloses a spice five-stage classifying screen which is composed of a screening barrel, screening nets, a driving box, a motor, a rotating shaft and the like, rubber strips are fixedly connected to the outer surface of the rotating shaft and located on the upper side of each screening net, and a cavity is formed in the rotating shaft. When the spices are screened, the motor drives the rotating shaft to rotate, the rotating shaft drives the rubber strip to rotate, the screening net is obliquely arranged in the screening barrel, and the rubber strip rotates horizontally, so that the rubber strip is inevitably in contact with the screening net and collides with the screening net in the rotating process, and the spices are screened. According to the spice powder screening device, the screen mesh is driven to vibrate, so that spice particles clamped on meshes are vibrated to fall off by vibration of the screen mesh, and spice powder adhered to the spice particles is also vibrated to fall off by vibration of the screen mesh, so that the spice powder is prevented from being screened into the spice particles.

Description

Technical Field

[0001] The utility model relates to the technical field of spice screening, in particular to a five-level grading screen for spices. Background Art

[0002] Spices are natural plant products with typical flavors such as aroma and spiciness, or certain essential oils extracted from plants. Spices mainly refer to dry powders or essential oils used in food seasonings, especially powdered spices. During the processing, they need to be cleaned, dried, ground, sifted and packaged first, while grinding and powder screening are important steps in spice processing. Screening is to screen the spices into various grades through multi-stage powder sieves, which is then convenient for the sale of spices.

[0003] During the use of the existing multi-stage grading screen for spices, some spice particles with a size similar to that of the screen mesh are easily stuck in the mesh, thus affecting the normal operation of the screen, and some powdered spices are easily adhered to the granular spices, resulting in the powdered spices being graded into the granular spices, resulting in poor grading effect, thus affecting the grade of the spices after screening and even affecting the sales price. Utility Model Content

[0004] In view of the shortcomings of the existing grading screens, the utility model provides a five-level grading screen for spices, which can use vibration to separate the spice powder adhering to the spice particles, prevent the screen mesh from getting stuck, and guide the spice powder to the bottom screening level, thereby improving the screening effect and solving the technical problems of poor spice screening effect and spice particles getting stuck in the mesh.

[0005] The utility model provides the following technical solution: a five-level grading screen for spices, including a sieving barrel, and also including:

[0006] The supporting legs are fixedly mounted on the bottom surface of the screening barrel, a feed hopper is fixedly mounted on the top surface of the screening barrel, a feed hole is opened on the top surface of the screening barrel and located inside the feed hopper, and a discharge pipe is fixedly mounted in the middle of the bottom surface of the screening barrel;

[0007] The sub-screen meshes are four in number, and the four sub-screen meshes are fixedly mounted on the inner cavity side wall of the sub-screen barrel, and the four sub-screen meshes are installed inside the sub-screen barrel in an inclined state, and a discharge port is fixedly provided at the side wall of the sub-screen barrel corresponding to the lowest point of each sub-screen mesh, a drive box is fixedly mounted on the middle of the top surface of the sub-screen barrel, a motor is fixedly mounted inside the drive box, and a rotating shaft is fixedly connected to the output end of the motor.

[0008] Preferably, the rotating shaft includes:

[0009] A rubber strip fixedly connected to the outer surface of the rotating shaft on the upper side of each sub-screen;

[0010] The rotating shaft is movably sleeved with the middle part of the sub-screen.

[0011] Preferably, the interior of the rotating shaft includes:

[0012] A cavity is provided inside the rotating shaft;

[0013] A through hole is provided inside the rotating shaft and is located at the upper part of each rubber strip;

[0014] The through hole connects the inner cavity of the screening barrel with the cavity.

[0015] Preferably, the interior of the rubber strip includes:

[0016] A slide groove is provided inside the rubber strip, and the slide groove is communicated with the cavity;

[0017] A spring fixedly connected to the middle of the end surface of the inner cavity of the chute facing the side wall of the screening barrel;

[0018] The magnetic piston is fixedly connected to the end of the spring away from the end surface of the slide groove.

[0019] Preferably, the interior of the screening barrel further includes:

[0020] A magnetic block is fixedly arranged inside the side wall of the sub-screening barrel, and the magnetic block corresponds to the highest point of the sub-screening mesh;

[0021] The magnetism of the magnetic block is opposite to that of the magnetic piston;

[0022] The magnetic attraction force of the magnetic block on the magnetic piston is greater than the elastic potential energy of the spring.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. Through the rubber strip, when the grading screen is screening spices, the motor drives the shaft to rotate, and the shaft drives the rubber strip to rotate. Since the grading screen is tilted inside the grading barrel, and the rubber strip rotates horizontally, the rubber strip will inevitably contact and hit the screen during the rotation process, thereby causing the screen to vibrate, so as to use the vibration of the screen to shake off the spice particles stuck on the mesh, and the vibration of the screen will also shake off the spice powder adhering to the spice particles, avoiding the spice powder from being sifted into the spice particles.

[0025] 2. By designing cavities, through holes, slides, springs, magnetic pistons and magnetic blocks, as the rotating shaft drives the rubber strip to rotate, when the rubber strip rotates to the high point of the sub-screen, the magnetic block inside the sub-screen barrel is used to adsorb the magnetic piston, so that the magnetic piston will slide to the inner wall of the sub-screen barrel, so that negative pressure is generated inside the slide, and the slide is connected with the inside of the sub-screen barrel through the cavity and the through hole, so that the negative pressure directly acts on the inside of the sub-screen barrel. At this time, the spice powder that is vibrated by the vibration of the sub-screen will be sucked into the cavity by the negative pressure, and finally fall to the bottom discharge pipe under the action of its own weight, thereby improving the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the screening barrel of the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the screening barrel of the utility model;

[0028] Figure 3 This is a schematic diagram of the matching structure of the sub-screen and the rotating shaft of the utility model;

[0029] Figure 4 It is a schematic diagram of the internal structure of the rotating shaft and the rubber strip of the utility model.

[0030] In the figure: 1. screening barrel; 2. supporting legs; 3. feed hopper; 4. feed hole; 5. discharge pipe; 6. screening mesh; 7. discharge port; 8. drive box; 9. motor; 10. rotating shaft; 101. rubber strip; 102. cavity; 103. through hole; 104. slide groove; 105. spring; 106. magnetic piston; 107. magnetic block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 4A five-level grading screen for spices comprises a sieving barrel 1, a supporting leg 2 is fixedly installed on the bottom surface of the sieving barrel 1, a feeding hopper 3 is fixedly installed on the top surface of the sieving barrel 1, a feeding hole 4 is opened on the top surface of the sieving barrel 1 and on the inner side of the feeding hopper 3, a discharging pipe 5 is fixedly installed in the middle of the bottom surface of the sieving barrel 1, four sieving nets 6 are fixedly installed on the side wall of the inner cavity of the sieving barrel 1, and the four sieving nets 6 are installed in an inclined shape inside the sieving barrel 1 to facilitate the discharge of spices after screening, and a discharging port 7 is fixedly provided at the side wall of the sieving barrel 1 corresponding to the lowest position of each sieving net 6, a driving box 8 is fixedly installed in the middle of the top surface of the sieving barrel 1, a motor 9 is fixedly installed inside the driving box 8, a rotating shaft 10 is fixedly welded on the output end of the motor 9, and the lower part of the rotating shaft 10 extends into the interior of the sieving barrel 1.

[0033] See also Figure 1-Figure 4 A rubber strip 101 is fixedly welded on the outer surface of the rotating shaft 10 and on the upper side of each sub-screen 6. The rotating shaft 10 drives the rubber strip 101 to rotate, so that the rubber strip 101 contacts and hits the sub-screen 6, causing the sub-screen 6 to vibrate.

[0034] The rotating shaft 10 is movably connected to the middle part of the sub-screen 6 .

[0035] See also Figure 1-Figure 4 A cavity 102 is defined inside the rotating shaft 10 .

[0036] A through hole 103 is formed inside the rotating shaft 10 and on the upper portion of each rubber strip 101 .

[0037] The through hole 103 connects the inner cavity of the screening barrel 1 with the cavity 102 , so that the spice powder can enter the cavity 102 .

[0038] See also Figure 1-Figure 4 A slide groove 104 is provided inside the rubber strip 101 , and the slide groove 104 is connected with the cavity 102 , so that when negative pressure is generated in the slide groove 104 , the negative pressure can also act on the cavity 102 .

[0039] A spring 105 is fixedly welded to the middle of the end surface of the inner cavity of the slide groove 104 facing the side wall of the screening barrel 1 .

[0040] A magnetic piston 106 is fixedly welded to one end of the spring 105 away from the end surface of the slide slot 104 , and the potential energy of the spring 105 is used to promote the reset of the magnetic piston 106 .

[0041] See also Figure 1-Figure 4 A magnetic block 107 is fixedly arranged inside the side wall of the sub-screen barrel 1, and the magnetic block 107 corresponds to the highest point of the sub-screen mesh 6.

[0042] The magnetism of the magnetic block 107 is opposite to that of the magnetic piston 106. When the rubber strip 101 rotates into the magnetic field range of the magnetic block 107, the magnetic attraction of the magnetic block 107 on the magnetic piston 106 is utilized to cause the magnetic piston 106 to slide by overcoming the potential energy of the spring 105, thereby causing negative pressure to be generated in the slide groove 104.

[0043] The magnetic attraction force of the magnetic block 107 on the magnetic piston 106 is greater than the elastic potential energy of the spring 105 .

[0044] Working principle: When spices need to be screened, the spices are put into the screening barrel 1 through the feed hopper 3 and the feed hole 4. As the spices fall freely, the spices gradually pass through the five layers of the screening mesh 6, so that spices of different specifications are discharged through the discharge port 7 corresponding to each specification of the screening mesh 6, thereby achieving the effect of graded screening. At the same time, the motor 9 is turned on to drive the rotating shaft 10 to rotate, and the rotating shaft 10 drives the rubber strip 101 to rotate. Since the screening mesh 6 is tilted inside the screening barrel 1, but the rubber strip 101 rotates in the horizontal direction, the rubber strip 101 will inevitably contact the screening mesh 6 during the rotation process, and hit the screening mesh 6, causing the screening mesh 6 to vibrate. The vibration of the screening mesh 6 The spice particles stuck on the mesh will fall off, and the vibration will separate the spice powder from the spice particles to prevent the spice powder from being classified into the spice particles. Secondly, as the rubber strip 101 rotates to the highest point of the sub-screen 6, the magnetic piston 106 in the rubber strip 101 will be affected by the magnetic attraction of the magnetic block 107, so that the magnetic piston 106 will slide in the slide 104, causing negative pressure to be generated inside the slide 104. Finally, the negative pressure acts on the inner cavity of the sub-screen barrel 1 through the connection between the cavity 102 and the through hole 103. At this time, the spice powder lifted by the vibration will be sucked into the cavity 102 by the negative pressure, and the spice powder in the cavity 102 will slowly fall to the discharge pipe 5 under the action of its own weight, and finally be discharged, thereby further improving the sieving effect of the spices.

Claims

1. A five-stage spice grading screen, comprising a sieving barrel (1), characterized in that: Also includes: A supporting leg (2) is fixedly mounted on the bottom surface of the screening barrel (1); a feed hopper (3) is fixedly mounted on the top surface of the screening barrel (1); a feed hole (4) is provided on the top surface of the screening barrel (1) and located inside the feed hopper (3); and a discharge pipe (5) is fixedly mounted in the middle of the bottom surface of the screening barrel (1); A screening mesh (6), wherein the number of the screening meshes (6) is four, and the four screening meshes (6) are fixedly mounted on the inner cavity side wall of the screening barrel (1). The four screening meshes (6) are installed in an inclined manner inside the screening barrel (1), and a discharge port (7) is fixedly arranged at the side wall of the screening barrel (1) corresponding to the lowest position of each screening mesh (6). A driving box (8) is fixedly mounted in the middle of the top surface of the screening barrel (1), and a motor (9) is fixedly mounted inside the driving box (8), and a rotating shaft (10) is fixedly connected to the output end of the motor (9).

2. The five-level spice grading screen according to claim 1, characterized in that: The rotating shaft (10) comprises: A rubber strip (101) fixedly connected to the outer surface of the rotating shaft (10) on the upper side of each sub-screen (6); The rotating shaft (10) is movably sleeved with the middle part of the sub-screen (6).

3. The five-level spice grading screen according to claim 2, characterized in that: The interior of the rotating shaft (10) comprises: A cavity (102) is provided inside the rotating shaft (10); A through hole (103) is provided inside the rotating shaft (10) and is located at the upper part of each rubber strip (101); The through hole (103) connects the inner cavity of the screening barrel (1) with the cavity (102).

4. The five-level grading screen for spices according to claim 3, characterized in that: The interior of the rubber strip (101) comprises: A slide groove (104) is provided inside the rubber strip (101), and the slide groove (104) is communicated with the cavity (102); A spring (105) is fixedly connected to the middle of the end surface of the inner cavity of the slide groove (104) facing the side wall of the screening barrel (1); The magnetic piston (106) is fixedly connected to an end of the spring (105) away from the end surface of the slide groove (104).

5. The five-level grading screen for spices according to claim 4, characterized in that: The interior of the screening barrel (1) also includes: A magnetic block (107) is fixedly arranged inside the side wall of the sub-screening barrel (1), and the magnetic block (107) corresponds to the highest point of the sub-screening mesh (6); The magnetism of the magnetic block (107) is opposite to that of the magnetic piston (106); The magnetic attraction force of the magnetic block (107) on the magnetic piston (106) is greater than the elastic potential energy of the spring (105).

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