Food raw material conveying device with screening function

Abstract

The invention discloses a food raw material conveying device with a screening function, and relates to the technical field of conveying devices.The food raw material conveying device comprises a support prearranged on a working face; the conveying bin is fixed to the support, and a plurality of air inlet pipes are obliquely fixed to the outer wall of the conveying bin; the feeding opening is formed in the upper end face of the conveying bin and connected with external feeding equipment; the discharging opening is formed in the lower end face of the conveying bin and communicated with a vacuum pump through a pipeline, and the vacuum pump is connected with the feeding tank through a pipeline; the crushing motor is fixed to the side wall, close to the feeding opening, of the conveying bin; the crushing blade is rotationally arranged in the conveying bin and is in driving connection with the crushing motor through a magnetic coupler; the conveying assembly is fixed in the conveying bin and communicates with the multiple air inlet pipes; powdery food raw materials are conveyed through vacuum negative pressure, the food raw materials can be preliminarily scattered through the crushing blades during conveying, and then secondary multiple scattering is conducted through the conveying assembly.

Description

Technical Field

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

[0002] In the food processing process, it is crucial to ensure that the raw materials transition smoothly from the handling stage to the processing equipment. For the transportation of powdered raw materials, vacuum conveying systems are popular because of their efficiency and cleanliness. However, a common challenge is that these raw materials are often piled together after processing, and the raw materials at the bottom are prone to form lumps due to gravity and mutual extrusion. These lumps are prone to cause blockages when passing through the conveying pipeline, thereby slowing down or even interrupting the flow of raw materials, which has an adverse effect on overall production efficiency.

[0003] Existing food material conveying devices use screens for vibrating screening when processing agglomerated materials. However, the processing efficiency of agglomerated materials by vibrating screening alone is low, and when too much material is piled up on the screen, the screen mesh will be clogged, making it difficult to convey.

[0004] In view of the above problems, the present invention provides a food 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 material conveying device with screening function, comprising: The bracket is pre-set on the working surface; A delivery bin is fixed on the bracket, and a plurality of air inlet pipes are obliquely fixed on the outer wall of the delivery bin; A feed inlet is provided on the upper end surface of the conveying bin and is connected to an external feed device; The discharge port is provided at the lower end surface of the conveying bin and is connected to the vacuum pump through a pipeline, and the vacuum pump is connected to the feeding tank through a pipeline; A crushing motor is fixed on the side wall of the conveying bin near the feed inlet; A crushing blade is rotatably arranged in the conveying bin and is driven and connected to the crushing motor by a magnetic coupling; A conveying assembly, fixed in the conveying bin and connected to a plurality of air inlet pipes; Among them, the conveying assembly includes an upper conveying cylinder and a lower conveying cylinder, the upper conveying cylinder is provided with a plurality of air inlets corresponding to the air inlet pipe, a first screening assembly is fixed to the inner wall of the upper conveying cylinder, a second screening assembly is rotatably arranged inside the first screening assembly, a third screening assembly is installed inside the lower conveying cylinder, and the third screening assembly is located below the second screening assembly.

[0006] Further, preferably, the first screening assembly comprises: An air intake ring, fixed in the upper conveying cylinder; An air intake chamber is configured as a plurality of chambers and is circumferentially arranged in the air intake ring; The flow chamber is arranged in the air inlet ring and is communicated with the air inlet.

[0007] Further, preferably, an air guide surface is obliquely opened on one side of the air inlet bin, and a plurality of air inlet holes are opened on the other side, and the plurality of air inlet holes are all obliquely arranged in the direction of the second screening component.

[0008] Further, preferably, the second screening assembly comprises: A rotating ring, rotatably disposed within the air intake ring; The driving blades are configured as a plurality of blades, all of which are arranged obliquely on the upper end surface of the rotating ring and located in the flow chamber; A driving surface, configured in a wave shape, is provided on the lower end surface of the rotating ring; The scattering blades are configured as a plurality of blades and are circumferentially arranged on the inner wall of the rotating ring.

[0009] Further, preferably, the breaking up leaves are arranged horizontally, and both sides thereof in the horizontal direction are blade-shaped.

[0010] Further, preferably, the third screening assembly comprises: A fixing ring, fixed in the lower conveying cylinder; A sliding ring, which is slidably arranged on the fixed ring using a plurality of sliding columns, and a vibration spring is sleeved on each of the plurality of sliding columns; At least two protrusions are symmetrically fixed on the upper end surface of the sliding ring and correspond to the driving surface; The screen is fixed in the sliding ring.

[0011] Further, preferably, a plurality of balls are rotatably provided on the upper end surface of the protrusion, and when the vibration spring is not in a compressed state, the protrusion does not contact the driving surface.

[0012] Compared with the prior art, the present invention provides a food material conveying device with a screening function, which has the following beneficial effects: The present invention conveys powdered food raw materials through vacuum negative pressure. During conveying, the food raw materials can be preliminarily broken up by crushing leaves, and then a second multiple breaking up is performed by a first screening component, a second screening component and a third screening component of the conveying component, so as to further avoid blockage of the food raw materials due to agglomeration. During the multiple breaking up, the food raw materials are first preliminarily broken up by airflow, and then a second breaking up is performed by breaking up leaves, and finally a vibration breaking up is performed by a screen, so that the breaking degree of the powdered raw materials is greatly improved, and the conveying of vacuum negative pressure is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall cross-sectional structure of a food material conveying device with a screening function; Figure 2 It is a schematic diagram of the structure of a conveying component in a food material conveying device with a screening function; Figure 3 It is a schematic cross-sectional structural diagram of a conveying component in a food material conveying device with a screening function; Figure 4 It is a schematic diagram of the partial structure of a conveying component in a food material conveying device with a screening function; In the figure: 1, bracket; 2, conveying bin; 3, feed inlet; 4, crushing motor; 5, crushing blade; 6, conveying assembly; 7, discharge port; 61, upper conveying cylinder; 62, lower conveying cylinder; 63, air inlet; 64, first screening assembly; 65, second screening assembly; 66, third screening assembly; 641, air inlet ring; 642, air inlet bin; 643, air inlet hole; 644, flow bin; 651, rotating ring; 652, driving blade; 653, driving surface; 654, breaking blade; 661, fixing ring; 662, sliding ring; 663, sliding column; 664, protrusion; 665, ball; 666, screen. DETAILED DESCRIPTION

[0014] Reference Figure 1-Figure 4 The present invention provides a technical solution: a food material conveying device with a screening function, comprising: Bracket 1, pre-set on the working surface; A delivery bin 2 is fixed on the bracket 1, and a plurality of air inlet pipes are obliquely fixed on the outer wall of the delivery bin 2; A feed port 3 is provided on the upper end surface of the conveying bin 2 and is connected to an external feeding device; The discharge port 7 is provided at the lower end surface of the conveying bin 2 and is connected to the vacuum pump through a pipeline, and the vacuum pump is connected to the feeding tank through a pipeline; A crushing motor 4 is fixed on the side wall of the conveying bin 2 near the feed port 3; The crushing blade 5 is rotatably arranged in the conveying bin 2 and is driven and connected to the crushing motor 4 by a magnetic coupling; A conveying assembly 6, fixed in the conveying bin 2 and connected to a plurality of air inlet pipes; Among them, the conveying assembly 6 includes an upper conveying cylinder 61 and a lower conveying cylinder 62, the upper conveying cylinder 61 is provided with a plurality of air inlets 63 corresponding to the air inlet pipe, a first screening assembly 64 is fixed to the inner wall of the upper conveying cylinder 61, a second screening assembly 65 is rotatably arranged inside the first screening assembly 64, a third screening assembly 66 is installed inside the lower conveying cylinder 62, and the third screening assembly 66 is located below the second screening assembly 65.

[0015] That is to say, when conveying powdered raw materials, negative pressure adsorption can be performed on the conveying bin 2 through the vacuum pump, so that the powdered raw materials enter the feeding tank through the pipeline, and when the powdered raw materials enter the conveying bin 2 from the feed port 3, they can be initially broken up by the crushing leaves 5, and then the initially broken up raw materials enter the conveying component 6 for secondary multiple breaking up, thereby further improving the degree of breaking up of the raw materials.

[0016] As a preferred embodiment, the first screening component 64 includes: An air intake ring 641 is fixed in the upper conveying cylinder 61; The air intake chamber 642 is configured as a plurality of chambers, which are circumferentially arranged in the air intake ring 641; The flow chamber 644 is provided in the air inlet ring 641 and communicated with the air inlet 63 .

[0017] As a preferred embodiment, an air guide surface is inclined on one side of the air inlet bin 642 , and a plurality of air inlet holes 643 are provided on the other side, and the plurality of air inlet holes 643 are arranged inclined toward the direction of the second screening component 65 .

[0018] When the raw materials fall into the air inlet ring 641, the air inlet bin 642 breaks up the raw materials through the air inlet holes 643, thereby accelerating the speed of the unagglomerated powdered raw materials and preventing them from adhering to the agglomerated raw materials again.

[0019] It should be noted that the air intake efficiency of the air inlet 643 is much lower than the extraction speed of the vacuum pump, that is, the gas pressure in the conveying bin 2 is always kept lower than one atmospheric pressure, which is convenient for vacuum negative pressure conveying of powdered raw materials.

[0020] As a preferred embodiment, the second screening component 65 includes: A rotating ring 651, rotatably disposed in the air inlet ring 641; The driving blades 652 are configured as a plurality of blades, all of which are obliquely arranged on the upper end surface of the rotating ring 651 and located in the flow chamber 644; The driving surface 653 is configured in a wave shape and is provided on the lower end surface of the rotating ring 651; The beating blades 654 are configured as a plurality and are arranged circumferentially on the inner wall of the rotating ring 651 .

[0021] As a preferred embodiment, the breaking leaves 654 are arranged horizontally, and both sides thereof in the horizontal direction are blade-shaped.

[0022] That is to say, when air is taken in through the air inlet hole 643, the gas in the flow bin 644 pushes the driving blade 652 to rotate the rotating ring 651, so that the breaking up blade 654 breaks up the powdered raw material for the second time, and during the breaking up, the blade-shaped breaking up blade 654 can reduce the resistance of contact with the powdered raw material, thereby facilitating the rotation of the rotating ring 651.

[0023] As a preferred embodiment, the third screening assembly 66 includes: A fixing ring 661, fixed in the lower conveying cylinder 62; The sliding ring 662 is slidably arranged on the fixed ring 661 using a plurality of sliding posts 663, and a vibration spring is sleeved on each of the plurality of sliding posts 663; There are at least two protrusions 664 symmetrically fixed on the upper end surface of the sliding ring 662 and corresponding to the driving surface 653 ; The screen 666 is fixed in the sliding ring 662 .

[0024] Among them, when the rotating ring 651 rotates, the wave shape of the driving surface 653 can press the protrusion 664. At this time, the protrusion 664 slides back and forth under the dual action of the vibration spring and the driving surface 653, thereby vibrating the powdered raw material falling on the screen 666 and breaking it up again, which greatly improves the breaking effect.

[0025] As a preferred embodiment, a plurality of balls 665 are rotatably provided on the upper end surface of the protrusion 664 , and when the vibration spring is not in a compressed state, the protrusion 664 is not in contact with the driving surface 653 .

[0026] It should be noted that when the vibration spring is not in a compressed state, the protrusion 664 is not in contact with the driving surface 653. When the driving surface 653 rotates, intermittent contact is formed with the protrusion 664, that is, the vibration spring is in a compressed state when in contact, thereby avoiding excessive pressure of the protrusion 664 on the driving surface 653, affecting the rotation of the rotating ring 651.

[0027] Specifically, first, the powdered raw materials are put in through the feed port 3, and then the vacuum pump conveys the powdered food raw materials. During the conveying, the crushing leaves 5 can preliminarily break up the food raw materials, and then the first screening component 64, the second screening component 65 and the third screening component 66 of the conveying component 6 are used to perform secondary multiple breaking up, so as to further avoid the blockage caused by the agglomeration of the food raw materials. When performing multiple breaking up, the airflow is first used to perform preliminary breaking up, and then the breaking leaves 654 are used to perform secondary breaking up, and finally the screen 666 is used to perform vibration breaking up, which greatly improves the degree of breaking up of the powdered raw materials and facilitates the vacuum negative pressure conveying.

[0028] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A food material conveying device with screening function, characterized in that: include: A support (1) is pre-set on the work surface; A delivery bin (2) is fixed on the bracket (1), and a plurality of air inlet pipes are obliquely fixed on the outer wall of the delivery bin (2); A feed port (3) is provided on the upper end surface of the conveying bin (2) and is connected to an external feed device; A discharge port (7) is provided on the lower end surface of the conveying bin (2) and is connected to a vacuum pump via a pipeline, and the vacuum pump is connected to a feeding tank via a pipeline; A crushing motor (4) is fixed to a side wall of the conveying bin (2) close to the feed port (3); A crushing blade (5) is rotatably disposed in the conveying bin (2) and is drive-connected to the crushing motor (4) by a magnetic coupling; A conveying assembly (6) is fixed in the conveying bin (2) and is in communication with a plurality of air inlet pipes; The conveying assembly (6) comprises an upper conveying cylinder (61) and a lower conveying cylinder (62); the upper conveying cylinder (61) is provided with a plurality of air inlets (63) corresponding to the air inlet pipes; a first screening assembly (64) is fixed to the inner wall of the upper conveying cylinder (61); a second screening assembly (65) is rotatably arranged inside the first screening assembly (64); a third screening assembly (66) is installed inside the lower conveying cylinder (62), and the third screening assembly (66) is located below the second screening assembly (65); The first screening assembly (64) comprises: An air intake ring (641) is fixed in the upper conveying cylinder (61); An air intake chamber (642) is configured as a plurality of chambers and is circumferentially arranged within the air intake ring (641); The flow chamber (644) is disposed in the air inlet ring (641) and is in communication with the air inlet (63).

2. A food material conveying device with screening function according to claim 1, characterized in that: The air inlet bin (642) has an air guide surface inclined on one side and a plurality of air inlet holes (643) on the other side, and the plurality of air inlet holes (643) are arranged inclined in the direction of the second screening assembly (65).

3. The food material conveying device with screening function according to claim 1, characterized in that: The second screening assembly (65) comprises: A rotating ring (651) rotatably disposed within the air intake ring (641); The driving blades (652) are configured as a plurality of blades, all of which are arranged obliquely on the upper end surface of the rotating ring (651) and are located in the flow chamber (644); The driving surface (653) is configured in a wave shape and is opened on the lower end surface of the rotating ring (651); The beating blades (654) are configured as a plurality of blades and are arranged circumferentially on the inner wall of the rotating ring (651).

4. The food material conveying device with screening function according to claim 3, characterized in that: The scattering blades (654) are arranged horizontally, and both sides thereof in the horizontal direction are blade-shaped.

5. The food material conveying device with screening function according to claim 3, characterized in that: The third screening assembly (66) comprises: A fixing ring (661) fixed in the lower conveying cylinder (62); A sliding ring (662) is slidably arranged on the fixed ring (661) using a plurality of sliding columns (663), and a vibration spring is sleeved on each of the plurality of sliding columns (663); At least two protrusions (664) are symmetrically fixed on the upper end surface of the sliding ring (662) and correspond to the driving surface (653); The screen (666) is fixed in the sliding ring (662).

6. The food material conveying device with screening function according to claim 5, characterized in that: A plurality of balls (665) are rotatably disposed on the upper end surface of the protruding piece (664), and when the vibration spring is not in a compressed state, the protruding piece (664) is not in contact with the driving surface (653).

Images