Screening device for milk powder processing

Abstract

The utility model relates to the technical field of milk powder processing, in particular to a screening device for milk powder processing, which comprises a base, a motor and an air outlet cover are fixedly arranged in the base, and air outlet holes are formed in the air outlet cover in a circumferential array mode. The heat dissipation opening is formed in the base; wherein the air outlet hole faces the direction of the motor, the air outlet cover is a conical cover, a conical seat is fixedly arranged in the air outlet cover, and an air channel communicated with the air outlet hole is arranged between the conical seat and the inner wall of the air outlet cover. According to the screening device for milk powder processing, air is introduced into the air outlet cover and flows to the air outlet holes through the air channel in the air outlet cover, the air outlet holes blow air to the motor, so that the motor is cooled, hot air in the base is exhausted through the heat dissipation opening, heat dissipation protection is conducted on the motor, and the service life of the motor is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of milk powder processing, and particularly relates to a screening device for milk powder processing. Background Art

[0002] When processing milk powder, it is necessary to screen the prepared milk powder to avoid caked milk powder from being canned, which affects the quality of milk powder.

[0003] A milk powder grading and screening device for milk powder processing, disclosed in the patent with the publication number CN216261850 and the publication date of April 12, 2022, includes a base, a vertical vibration motor, a mounting seat, a storage battery, a mounting block, a screening box, a cover plate and a rotating nut.

[0004] In the prior art including the above patent, the vertical vibration motor is arranged inside the base. Due to long-term operation, the vertical vibration motor will generate heat, which increases the temperature inside the base. Moreover, the base is in a closed state, and the heat cannot be dissipated in time, thus reducing the service life of the vertical vibration motor. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a screening device for milk powder processing, which is used to solve the technical problem in the prior art that due to long-term operation, the vertical vibration motor will generate heat, which increases the temperature inside the base, and the base is in a closed state, and the heat cannot be dissipated in time, thus reducing the service life of the vertical vibration motor.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: A screening device for milk powder processing, comprising:

[0007] A base, inside which a motor and an air outlet cover are fixedly arranged, and air outlet holes are arranged in a circumferential array on the air outlet cover;

[0008] It further includes a heat dissipation opening formed on the base;

[0009] Among them, the air outlet holes face the direction of the motor, the air outlet cover is a conical cover, a conical seat is fixedly arranged inside the air outlet cover, and an air duct communicating with the air outlet holes is arranged between the conical seat and the inner wall of the air outlet cover.

[0010] Preferably, it further includes a cam fixedly arranged at the output end of the motor.

[0011] Preferably, it further includes a fixing plate slidably arranged inside the base, a fixing rod is fixedly arranged on the fixing plate, a screening box is fixedly arranged at the top of the fixing rod, and a wind plate is fixedly arranged on the screening box.

[0012] Preferably, it further includes a support plate fixedly arranged on the base, an air inlet cover is fixedly arranged on the support plate, and the air inlet cover and the air outlet cover are communicated through a diversion pipe.

[0013] Preferably, the diversion pipe includes a diversion part, a first acceleration part and a second acceleration part.

[0014] Preferably, both the first acceleration part and the second acceleration part are conical pipes, and the cross-sectional area gradually decreases from the air inlet to the air outlet.

[0015] In the above technical solution, a screening device for milk powder processing provided by the present utility model has the following beneficial effects: Air is introduced into the air outlet hood and flows through the air duct in the air outlet hood to the air outlet holes, and the air outlet holes blow air on the motor, thereby dissipating heat from the motor, and discharging the hot air inside the base through the heat dissipation openings, thereby protecting the motor from heat dissipation, effectively extending the service life of the motor. The screening box moves up and down reciprocally, thereby driving the air plate to move up and down reciprocally in the air inlet hood, thereby agitating the air to enter the diversion pipe through the inner wall of the air inlet hood, then enter the air outlet hood through the diversion pipe, and then blow to the motor, thereby dissipating heat from the motor, and discharging the hot air inside the base through the heat dissipation openings, thereby protecting the motor from heat dissipation, and there is no need for an additional fan or other driving sources to dissipate heat from the motor, effectively saving the equipment manufacturing cost. The screening box moves up and down reciprocally, thereby driving the air plate to move up and down reciprocally in the air inlet hood, thereby agitating the air to enter the diversion pipe through the inner wall of the air inlet hood. The air first enters the diversion part for diversion, and then enters the first acceleration part. Since the first acceleration part is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at the large cross-section and large at the small cross-section, the air flow is initially accelerated after entering the first acceleration part. The accelerated air flow then enters the second acceleration part. Since the second acceleration part is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at the large cross-section and large at the small cross-section, the air flow is secondarily accelerated after entering the first acceleration part and enters the air outlet hood for accelerated discharge. By increasing the flow velocity, the heat dissipation efficiency is accelerated, and the heat dissipation effect is further improved. Also, since the air outlet holes are arranged in a circumferential array, a wind wall is formed around the motor, thereby blocking the propagation of noise during the operation of the motor, thereby achieving the effect of sound insulation and noise reduction, and further improving the environmental protection performance of the device. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a top-down three-dimensional structural schematic diagram provided by an embodiment of the present utility model;

[0018] Figure 2Schematic diagram of the upward-looking three-dimensional structure provided by the embodiment of the present utility model;

[0019] Figure 3 Schematic diagram of the internal structure of the screening box provided by the embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the front sectional structure provided by the embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the planar structure of the cam provided by the embodiment of the present utility model;

[0022] Figure 6 Schematic diagram of the distribution structure of the air outlet holes provided by the embodiment of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1. Base; 11. Heat dissipation port; 12. Support plate; 121. Air inlet hood; 2. Screening box; 21. Feed inlet; 22. Discharge outlet; 23. Screen; 24. Air plate; 3. Diversion pipe; 31. Diversion part; 32. First acceleration part; 33. Second acceleration part; 34. Air outlet hood; 341. Air duct; 342. Air outlet hole; 343. Conical seat; 4. Sleeve; 41. Spring; 42. Support rod; 5. Fixed plate; 51. Fixed rod; 6. Motor; 61. Cam. Detailed implementation manners

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0026] As Figure 1-6 shown, a screening device for milk powder processing includes:

[0027] A base 1, inside which a motor 6 and an air outlet hood 34 are fixedly arranged, and air outlet holes 342 are arranged in a circumferential array on the air outlet hood 34;

[0028] It further includes a heat dissipation port 11 opened on the base 1;

[0029] Among them, the air outlet holes 342 face the direction of the motor 6, the air outlet hood 34 is a conical hood, a conical seat 343 is fixedly arranged inside the air outlet hood 34, and an air duct 341 communicating with the air outlet holes 342 is arranged between the conical seat 343 and the inner wall of the air outlet hood 34.

[0030] Specifically, when the motor 6 works, air is introduced into the air outlet hood 34 and flows through the air duct 341 in the air outlet hood 34 to the air outlet holes 342, and the air outlet holes 342 blow air to the motor 6, thereby dissipating heat from the motor 6, and discharging the hot air inside the base 1 through the heat dissipation port 11, thereby providing heat dissipation protection for the motor 6.

[0031] In the above technology, air is introduced into the air outlet hood 34 and flows through the air duct 341 in the air outlet hood 34 to the air outlet holes 342. The air outlet holes 342 blow air on the motor 6, thereby dissipating heat from the motor 6, and discharging the hot air inside the base 1 through the heat dissipation openings 11, thereby providing heat dissipation protection for the motor 6 and effectively extending the service life of the motor 6.

[0032] As a further embodiment provided by the present utility model, it further includes a cam 61 fixedly arranged at the output end of the motor 6.

[0033] Specifically, it further includes a fixing plate 5 slidably arranged inside the base 1, on which a fixing rod 51 is fixedly arranged. The top of the fixing rod 51 is fixedly provided with a screening box 2, and a wind plate 24 is fixedly arranged on the screening box 2. The driving motor 6 rotates, thereby driving the cam 61 to rotate. The initial positions of the cam 61 and the fixing plate 5 are as Figure 4 shown. When the cam 61 rotates 180 degrees from the initial position, the convex part of the cam 61 rotates to the top of the cam 61 and pushes the fixing plate 5 to move upward, thereby stretching the spring 41 in the sleeve 4 through the support rod 42. The convex part of the cam 61 continues to rotate towards the bottom, and the spring 41 restores its deformation and drives the fixing plate 5 to move downward through the support rod 42, thereby realizing the reciprocating movement of the fixing plate 5, and driving the screening box 2 to vibrate through the fixing rod 51.

[0034] Furthermore, milk powder is poured into the screening box 2 through the feeding port 21 at the top of the screening box 2. The milk powder is screened by a plurality of sieve meshes 23 arranged inside the screening box 2, and discharged through the discharge ports 22 corresponding to the sieve meshes 23.

[0035] As a further embodiment provided by the present utility model, it further includes a support plate 12 fixedly arranged on the base 1, on which an air inlet hood 121 is fixedly arranged. The air inlet hood 121 is connected to the air outlet hood 34 through a diversion pipe 3.

[0036] Specifically, the screening box 2 reciprocates up and down, thereby driving the wind plate 24 to reciprocate up and down inside the air inlet hood 121, thereby agitating air to enter the diversion pipe 3 through the inner wall of the air inlet hood 121, then enter the air outlet hood 34 through the diversion pipe 3, and then blow towards the motor 6, thereby dissipating heat from the motor 6, and discharging the hot air inside the base 1 through the heat dissipation openings 11, thereby providing heat dissipation protection for the motor 6, and there is no need for an additional fan or other driving sources to dissipate heat from the motor 6, effectively saving the equipment manufacturing cost.

[0037] As a further embodiment provided by the present utility model, the diversion pipe 3 includes a diversion part 31, a first acceleration part 32 and a second acceleration part 33.

[0038] Specifically, both the first acceleration part 32 and the second acceleration part 33 are conical pipes, and the cross-sectional area gradually decreases from the air inlet to the air outlet. The screening box 2 moves up and down reciprocally, thereby driving the air plate 24 to move up and down reciprocally within the air inlet hood 121, so as to stir the air to enter the diversion pipe 3 through the inner wall of the air inlet hood 121. The air first enters the diversion part 31 for diversion and then enters the first acceleration part 32. Since the first acceleration part 32 is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at the large cross-section and large at the small cross-section, the air flow is initially accelerated after entering the first acceleration part 32.

[0039] Furthermore, the accelerated air flow then enters the second acceleration part 33. Since the second acceleration part 33 is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at the large cross-section and large at the small cross-section, the air flow is secondarily accelerated after entering the first acceleration part 32 and enters the air outlet hood 34 for accelerated discharge. By increasing the flow velocity, the heat dissipation efficiency is thereby increased, and the heat dissipation effect is further improved.

[0040] Furthermore, since the air outlet holes 342 are arranged in a circular array, a wind wall is formed around the motor 6, thereby blocking the propagation of the noise during the operation of the motor 6, and thus achieving the effect of sound insulation and noise reduction, and further improving the environmental protection performance of the device.

[0041] Working principle: The driving motor 6 rotates, thereby driving the cam 61 to rotate. The initial positions of the cam 61 and the fixed plate 5 are as Figure 4As shown, when the cam 61 rotates 180 degrees from the initial position, the convex part of the cam 61 rotates to the top of the cam 61 and pushes the fixed plate 5 upward. As a result, the spring 41 is stretched in the sleeve 4 through the support rod 42. The convex part of the cam 61 continues to rotate towards the bottom, and the spring 41 resumes its deformation and drives the fixed plate 5 downward through the support rod 42, thereby realizing the reciprocating movement of the fixed plate 5. Then, the screening box 2 is driven to vibrate through the fixed rod 51. The milk powder is poured into the screening box 2 through the feed port 21 at the top of the screening box 2. The milk powder is screened by a plurality of screens 23 arranged in the screening box 2, and discharged through the discharge ports 22 corresponding to the screens 23. The reciprocating movement of the screening box 2 up and down drives the air plate 24 to reciprocate up and down in the air inlet hood 121, thereby agitating the air to enter the diversion pipe 3 through the inner wall of the air inlet hood 121, then enter the air outlet hood 34 through the diversion pipe 3, and then blow towards the motor 6, thereby dissipating heat from the motor 6 and discharging the hot air inside the base 1 through the heat dissipation port 11, thereby providing heat dissipation protection for the motor 6. Moreover, no additional driving sources such as a blower are required to dissipate heat from the motor 6, effectively saving the manufacturing cost of the equipment. The reciprocating movement of the screening box 2 up and down drives the air plate 24 to reciprocate up and down in the air inlet hood 121, thereby agitating the air to enter the diversion pipe 3 through the inner wall of the air inlet hood 121. The air first enters the diversion part 31 for diversion and then enters the first acceleration part 32. Since the first acceleration part 32 is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at a large cross-section and large at a small cross-section, the air flow is initially accelerated after entering the first acceleration part 32. The accelerated air flow then enters the second acceleration part 33. Since the second acceleration part 33 is a conical pipe and the cross-sectional area gradually decreases from the air inlet to the air outlet, following the principle that the flow velocity is small at a large cross-section and large at a small cross-section, the air flow is secondarily accelerated after entering the first acceleration part 32 and enters the air outlet hood 34 for accelerated discharge. By increasing the flow velocity, the heat dissipation efficiency is accelerated, and the heat dissipation effect is further improved. Also, since the air outlet holes 342 are arranged in a circular array, a wind wall is formed around the motor 6, thereby blocking the propagation of noise during the operation of the motor 6, thus achieving the effect of sound insulation and noise reduction and further improving the environmental protection performance of the device.

[0042] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description 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 screening device for milk powder processing, characterized in that, Including: A base (1), inside which a motor (6) and an air outlet hood (34) are fixedly arranged, and air outlet holes (342) are arranged in a circumferential array on the air outlet hood (34); It further includes a heat dissipation opening (11) formed in the base (1); Wherein, the air outlet holes face the direction of the motor (6), the air outlet hood (34) is a conical hood, a conical seat (343) is fixedly arranged inside the air outlet hood (34), and an air duct (341) communicating with the air outlet holes is arranged between the conical seat (343) and the inner wall of the air outlet hood (34).

2. The screening device for milk powder processing according to claim 1, characterized in that, It further includes a cam (61) fixedly arranged at the output end of the motor (6).

3. A screening device for milk powder processing according to claim 1, characterized in that, It further includes a fixing plate (5) slidably arranged inside the base (1), on which a fixing rod (51) is fixedly arranged, the top of the fixing rod (51) is fixedly provided with a screening box (2), and a wind plate (24) is fixedly arranged on the screening box (2).

4. A sieving device for milk powder processing according to claim 1, characterized in that, It further includes a support plate (12) fixedly arranged on the base (1), on which an air inlet hood (121) is fixedly arranged, and the air inlet hood (121) is communicated with the air outlet hood (34) through a diversion pipe (3).

5. A sieving device for milk powder processing according to claim 4, characterized in that, The diversion pipe (3) includes a diversion part (31), a first acceleration part (32) and a second acceleration part (33).

6. A screening device for milk powder processing according to claim 5, characterized in that, Both the first acceleration part (32) and the second acceleration part (33) are conical pipes, and the cross-sectional area gradually decreases from the air inlet to the air outlet.

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