A food raw material conveying device with a screening function

Abstract

The present invention discloses a food raw material conveying device with a screening function, which relates to the technical field of conveying devices and includes a bracket pre-set on a working surface; a conveying bin fixed on the bracket, with a plurality of air inlet pipes obliquely fixed on the outer wall of the conveying bin; a feed inlet opened on the upper end surface of the conveying bin and connected to an external feeding device; a discharge outlet opened on the lower end surface of the conveying bin and connected to a vacuum pump through a pipeline, and the vacuum pump is connected to a feeding tank through a pipeline; a crushing motor fixed on the side wall of the conveying bin close to the feed inlet; a crushing blade rotatably arranged in the conveying bin and drivingly connected to the crushing motor by a magnetic coupler; a conveying assembly fixed in the conveying bin and communicated with a plurality of air inlet pipes; the present invention conveys powdery food raw materials through vacuum negative pressure, and during the conveying process, the food raw materials can be preliminarily scattered by the crushing blade, and then subjected to secondary multiple scattering by the conveying assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and specifically to a food raw material conveying device with a screening function. Background Art

[0002] In the food processing process, it is crucial to ensure the smooth transition of raw materials from the processing stage to the processing equipment. For the conveying of powdered raw materials, vacuum conveying systems are widely popular due to their high efficiency and cleanliness. However, a common challenge is that these raw materials are often stacked together after processing, and the raw materials at the bottom are prone to form lumps due to gravity and mutual extrusion. When these lumps pass through the conveying pipeline, they are likely to cause blockages, thereby slowing down or even interrupting the flow of raw materials, which has an adverse impact on the overall production efficiency.

[0003] Existing food raw material conveying devices use a sieve for vibrating screening when dealing with lumpy raw materials, but the processing efficiency of lumpy raw materials by only vibrating screening is relatively low, and when too many raw materials are stacked on the sieve, it will cause the sieve holes to be blocked, making it difficult to convey.

[0004] In view of the above problems, the present invention provides a food raw material conveying device with a screening function to solve the above problems. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A food raw material conveying device with a screening function, comprising:

[0006] A bracket, pre-set on the working surface;

[0007] A conveying bin, fixed on the bracket, and a plurality of air inlet pipes are fixedly inclined on the outer wall of the conveying bin;

[0008] A feed inlet, opened on the upper end surface of the conveying bin and communicated with an external feeding device;

[0009] A discharge outlet, opened on the lower end surface of the conveying bin and communicated with a vacuum pump through a pipeline, and the vacuum pump is connected to a feeding tank through a pipeline;

[0010] A crushing motor, fixed on the side wall of the conveying bin near the feed inlet;

[0011] Crushing blades, rotatably arranged in the conveying bin and drivingly connected to the crushing motor by a magnetic coupling;

[0012] A conveying component, fixed in the conveying bin and communicated with a plurality of air inlet pipes;

[0013] Among them, the conveying component includes an upper conveying cylinder and a lower conveying cylinder. A plurality of air inlets corresponding to the air inlet pipes are provided on the upper conveying cylinder. A first screening component is fixed on the inner wall of the upper conveying cylinder. A second screening component is rotatably arranged in the first screening component. A third screening component is installed inside the lower conveying cylinder, and the third screening component is located below the second screening component.

[0014] Furthermore, preferably, the first screening component includes:

[0015] An air inlet ring, fixed inside the upper conveying cylinder;

[0016] Air inlet chambers, configured to be multiple, and circumferentially arranged inside the air inlet ring;

[0017] A flow chamber, opened inside the air inlet ring and communicated with the air inlets.

[0018] Furthermore, preferably, a wind guiding surface is inclinedly opened on one side of the air inlet chamber, and a plurality of air inlet holes are opened on the other side, and the plurality of air inlet holes are all inclinedly arranged in the direction of the second screening component.

[0019] Furthermore, preferably, the second screening component includes:

[0020] A rotating ring, rotatably arranged inside the air inlet ring;

[0021] Driving blades, configured to be multiple, all inclinedly arranged on the upper end surface of the rotating ring and located inside the flow chamber;

[0022] A driving surface, configured to be wavy, opened on the lower end surface of the rotating ring;

[0023] Scattering blades, configured to be multiple, and circumferentially arranged on the inner wall of the rotating ring.

[0024] Furthermore, preferably, the scattering blades are horizontally arranged, and both sides in the horizontal direction are blade-shaped.

[0025] Furthermore, preferably, the third screening component includes:

[0026] A fixed ring, fixed inside the lower conveying cylinder;

[0027] A sliding ring, slidably arranged on the fixed ring by a plurality of sliding columns, and vibration springs are sleeved on the plurality of sliding columns;

[0028] Protruding members, at least two, symmetrically fixed on the upper end surface of the sliding ring and corresponding to the driving surface;

[0029] A screen, fixed inside the sliding ring.

[0030] Further, preferably, a plurality of ball bearings are rotatably arranged on the upper end surface of the protruding member, and when the vibration spring is not in a compressed state, the protruding member is not in contact with the driving surface.

[0031] Compared with the prior art, the present invention provides a food raw material conveying device with a screening function, having the following beneficial effects:

[0032] The present invention conveys powdered food raw materials through vacuum negative pressure. During transportation, the food raw materials can be initially dispersed by the crushing blades, and then secondary multiple dispersions are performed by the first screening component, the second screening component, and the third screening component of the conveying component, further avoiding blockage caused by caking of the food raw materials. Moreover, during multiple dispersions, initial dispersion is first performed by air flow, then secondary dispersion is performed by the dispersing blades, and finally vibration dispersion is performed through the screen, greatly improving the degree of dispersion of the powdered raw materials and facilitating vacuum negative pressure transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is an overall cross-sectional structural schematic diagram of a food raw material conveying device with a screening function;

[0034] Figure 2 is a structural schematic diagram of the conveying component in a food raw material conveying device with a screening function;

[0035] Figure 3 is a cross-sectional structural schematic diagram of the conveying component in a food raw material conveying device with a screening function;

[0036] Figure 4 is a partial structural schematic diagram of the conveying component in a food raw material conveying device with a screening function;

[0037] In the figure: 1, support; 2, conveying bin; 3, feed inlet; 4, crushing motor; 5, crushing blade; 6, conveying component; 7, discharge outlet; 61, upper conveying cylinder; 62, lower conveying cylinder; 63, air inlet; 64, first screening component; 65, second screening component; 66, third screening component; 641, air inlet ring; 642, air inlet chamber; 643, air inlet hole; 644, flow chamber; 651, rotating ring; 652, driving blade; 653, driving surface; 654, dispersing blade; 661, fixed ring; 662, sliding ring; 663, sliding column; 664, protruding member; 665, ball bearing; 666, screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] Referring to Figures 1-4 , the present invention provides a technical solution: a food raw material conveying device with a screening function, including:

[0039] A support 1, pre-set on the working surface;

[0040] The conveying bin 2 is fixed on the bracket 1, and a plurality of air inlet pipes are fixedly arranged on the outer wall of the conveying bin 2 in an inclined manner;

[0041] The feed inlet 3 is opened on the upper end surface of the conveying bin 2 and is communicated with an external feeding device;

[0042] The discharge port 7 is opened on the lower end surface of the conveying bin 2 and is communicated with a vacuum pump through a pipeline. The vacuum pump is connected with a feeding tank through a pipeline;

[0043] The crushing motor 4 is fixed on the side wall of the conveying bin 2 close to the feed inlet 3;

[0044] The crushing blade 5 is rotatably arranged in the conveying bin 2 and is driven and connected with the crushing motor 4 by a magnetic coupler;

[0045] The conveying component 6 is fixed in the conveying bin 2 and is communicated with a plurality of air inlet pipes;

[0046] Wherein, the conveying component 6 includes an upper conveying cylinder 61 and a lower conveying cylinder 62. A plurality of air inlets 63 corresponding to the air inlet pipes are opened on the upper conveying cylinder 61. A first screening component 64 is fixed on the inner wall of the upper conveying cylinder 61. A second screening component 65 is rotatably arranged in the first screening component 64. A third screening component 66 is installed inside the lower conveying cylinder 62, and the third screening component 66 is located below the second screening component 65.

[0047] That is to say, when conveying the powdery raw material, the inside of the conveying bin 2 can be negatively pressured and adsorbed by the vacuum pump, so that the powdery raw material enters the feeding tank through the pipeline. And when the powdery raw material enters the conveying bin 2 from the feed inlet 3, it can be preliminarily scattered by the crushing blade 5. After that, the preliminarily scattered raw material enters the conveying component 6 for secondary multiple scattering, further improving the degree of scattering of the raw material.

[0048] As a preferred embodiment, the first screening component 64 includes:

[0049] The air inlet ring 641 is fixed inside the upper conveying cylinder 61;

[0050] The air inlet chambers 642 are configured in multiple numbers and are circumferentially arranged inside the air inlet ring 641;

[0051] The flow chamber 644 is opened inside the air inlet ring 641 and is communicated with the air inlet 63.

[0052] As a preferred embodiment, a wind guiding surface is inclinedly opened on one side of the air inlet chamber 642, and a plurality of air inlet holes 643 are opened on the other side, and the plurality of air inlet holes 643 are all inclinedly arranged in the direction of the second screening component 65.

[0053] Among them, when the raw materials fall into the air inlet ring 641, the air inlet chamber 642 disperses the raw materials through the air inlet holes 643, thereby accelerating the speed of the unagglomerated powdery raw materials and preventing them from adhering to the agglomerated raw materials again.

[0054] It should be noted that the air intake efficiency of the air inlet holes 643 is much lower than the extraction speed of the vacuum pump. That is to say, the gas pressure in the conveying bin 2 always remains lower than one atmospheric pressure, which is convenient for the vacuum negative pressure conveying of the powdery raw materials.

[0055] As a preferred embodiment, the second screening assembly 65 includes:

[0056] A rotating ring 651, rotatably arranged in the air inlet ring 641;

[0057] Driving blades 652, configured to be multiple, are all inclined and arranged on the upper end surface of the rotating ring 651 and located in the flow bin 644;

[0058] A driving surface 653, configured to be wavy, is opened on the lower end surface of the rotating ring 651;

[0059] Dispersing blades 654, configured to be multiple, are circumferentially arranged on the inner wall of the rotating ring 651.

[0060] As a preferred embodiment, the dispersing blades 654 are horizontally arranged, and both sides in the horizontal direction are blade-shaped.

[0061] That is to say, when the air inlet holes 643 intake air, the gas in the flow bin 644 pushes the driving blades 652 to rotate the rotating ring 651, so that the dispersing blades 654 perform secondary dispersion on the powdery raw materials, and the resistance of contact with the powdery raw materials can be reduced by the blade-shaped dispersing blades 654 during dispersion, thereby facilitating the rotation of the rotating ring 651.

[0062] As a preferred embodiment, the third screening assembly 66 includes:

[0063] A fixed ring 661, fixed in the lower conveying cylinder 62;

[0064] A sliding ring 662, slidably arranged on the fixed ring 661 by a plurality of sliding columns 663, and vibration springs are sleeved on the plurality of sliding columns 663;

[0065] Protruding members 664, at least two, are symmetrically fixed on the upper end surface of the sliding ring 662 and correspond to the driving surface 653;

[0066] A sieve mesh 666, fixed in the sliding ring 662.

[0067] Among them, when the rotating ring 651 rotates, the wavy shape of the driving surface 653 can press the protruding member 664. At this time, the protruding member 664 reciprocates under the dual action of the vibration spring and the driving surface 653, so as to vibrate the powdery raw material falling on the sieve 666 and break it up again, greatly improving the breakup effect.

[0068] As a preferred embodiment, a plurality of balls 665 are rotatably arranged on the upper end surface of the protruding member 664, and when the vibration spring is not in a compressed state, the protruding member 664 is not in contact with the driving surface 653.

[0069] It should be noted that when the vibration spring is not in a compressed state, the protruding member 664 is not in contact with the driving surface 653 at this time. When the driving surface 653 rotates, intermittent contact is formed with the protruding member 664 at this time, that is, the vibration spring is in a compressed state when in contact, so as to prevent the pressure of the protruding member 664 on the driving surface 653 from being too large and affecting the rotation of the rotating ring 651.

[0070] Specifically, first, the powdery raw material is put in through the feed port 3, and then the vacuum pump conveys the powdery food raw material. During the conveying process, the crushing blade 5 can initially break up the food raw material. Then, it undergoes secondary multiple breakup through the first screening component 64, the second screening component 65, and the third screening component 66 of the conveying component 6, further avoiding the blockage caused by the caking of the food raw material. During the multiple breakup, it is initially broken up by air flow, then secondarily broken up by the breakup blade 654, and finally vibrationally broken up by the sieve 666, greatly improving the breakup degree of the powdery raw material and facilitating the vacuum negative pressure conveying.

[0071] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A food raw material conveying device with a screening function, characterized in that, Including: A bracket pre - installed on the working surface; A conveying bin fixed on the bracket, and a plurality of air inlet pipes are fixedly inclined on the outer wall of the conveying bin; A feed inlet opened on the upper end face of the conveying bin and communicated with an external feeding device; A discharge outlet opened on the lower end face of the conveying bin and connected to a vacuum pump through a pipeline, and the vacuum pump is connected to a feeding tank through a pipeline; A crushing motor fixed on the side wall of the conveying bin near the feed inlet; Crushing blades rotatably arranged in the conveying bin and drivingly connected to the crushing motor through a magnetic coupler; A conveying component fixed in the conveying bin and communicated with a plurality of air inlet pipes; Among them, the conveying component includes an upper conveying cylinder and a lower conveying cylinder. A plurality of air inlets corresponding to the air inlet pipes are opened on the upper conveying cylinder. A first screening component is fixed on the inner wall of the upper conveying cylinder. A second screening component is rotatably arranged in the first screening component. A third screening component is installed inside the lower conveying cylinder, and the third screening component is located below the second screening component; The first screening component includes: An air inlet ring fixed inside the upper conveying cylinder; A plurality of air inlet chambers configured to be circumferentially arranged inside the air inlet ring; A flow chamber opened inside the air inlet ring and communicated with the air inlet; A wind - guiding surface is inclinedly opened on one side of the air inlet chamber, and a plurality of air inlet holes are opened on the other side, and the plurality of air inlet holes are all inclinedly arranged in the direction of the second screening component; The second screening component includes: A rotating ring rotatably arranged inside the air inlet ring; A plurality of driving blades configured to be inclinedly arranged on the upper end face of the rotating ring and located inside the flow chamber; A driving surface configured to be wavy is opened on the lower end face of the rotating ring; A plurality of dispersing blades configured to be circumferentially arranged on the inner wall of the rotating ring; The third screening component includes: A fixed ring fixed inside the lower conveying cylinder; A sliding ring slidably arranged on the fixed ring by a plurality of sliding columns, and vibration springs are sleeved on the plurality of sliding columns; At least two protruding members symmetrically fixed on the upper end face of the sliding ring and corresponding to the driving surface; A sieve mesh fixed inside the sliding ring.

2. The food raw material conveying device with a screening function according to claim 1, wherein, The dispersing blades are horizontally arranged, and both sides in the horizontal direction are blade - shaped.

3. A food raw material conveying device with a screening function according to claim 1, characterized in that, A plurality of rolling balls are rotatably arranged on the upper end face of the protruding member, and when the vibration spring is not in a compressed state, the protruding member does not contact the driving surface.

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