Egg-yolk puff grease deoiling equipment and production process thereof

Abstract

The invention relates to the technical field of deoiling equipment, in particular to egg-yolk puff grease deoiling equipment and a production process thereof. The base is provided with a sealed transmission seat; the base is provided with a sealing cover; an oil absorption felt is arranged at the top of the sealed transmission seat; a plurality of trays are arranged on the top of the oil absorption felt in the length direction of the sealed conveying base. A plurality of capillary tube holes are formed in the bottom of the tray in a penetrating manner; the base is provided with an air exhaust shell; an air exhaust piston is movably arranged in the air exhaust shell in a sealed mode. The interior of the air exhaust shell is divided into a first air exhaust cavity and a second air exhaust cavity by the air exhaust piston; the second air exhaust cavity is communicated with the sealing cavity; and the first air exhaust cavity is communicated with the outside. According to the invention, the egg-yolk puff is placed in a reduced pressure environment, so that grease inside the egg-yolk puff seeps out under the action of internal and external air pressure difference and is drained to the oil absorption felt through the capillary tube holes in the tray to be absorbed, the grease removal of the egg-yolk puff is realized, and the condition of the egg-yolk puff can be effectively prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of deoiling equipment, and in particular to an egg yolk crisp fat deoiling equipment and a production process thereof. Background Art

[0002] Most of the existing fried food degreasing equipment separates the grease from the fried food by natural drainage or centrifugal force. The grease contained in the egg yolk crisp is located inside the pastry and the filling. The natural drainage method cannot remove the grease in the egg yolk crisp. During centrifugal degreasing, the fried foods will be squeezed against each other. The surface of the egg yolk crisp has decorative attachments such as sesame seeds, and the pastry is crispy and easy to break. The centrifugal degreasing method will cause the pastry and attachments to fall off, causing damage to the appearance of the egg yolk crisp. Based on the above reasons, the existing degreasing method is not suitable for egg yolk crisp, and a relatively static degreasing method needs to be developed to ensure that the appearance of the egg yolk crisp is not damaged. At the same time, it is also necessary to ensure that the grease removal filter meets the requirements to obtain a refreshing taste. Summary of the invention

[0003] The purpose of the present invention is to provide an egg yolk crisp oil degreasing device and a production process thereof in view of the above-mentioned deficiencies in the prior art.

[0004] The object of the present invention is achieved through the following technical scheme: an egg yolk crisp oil degreasing device and a production process thereof, comprising a base; the base is provided with a sealing transmission seat; the base is provided with a sealing cover for lifting and lowering at the top of the sealing transmission seat; the sealing transmission seat and the sealing cover are sealed to form a sealing cavity;

[0005] The top of the sealing transmission seat is provided with an oil-absorbing felt; the top of the oil-absorbing felt is provided with a plurality of trays arranged along the length direction of the sealing transmission seat; the bottom of the tray is penetrated with a plurality of capillary holes;

[0006] The base is provided with an air pumping shell; an air pumping piston is provided in the air pumping shell for sealing and movement; the air pumping piston divides the air pumping shell into a first air pumping cavity and a second air pumping cavity; the second air pumping cavity is connected with the sealing cavity; and the first air pumping cavity is connected with the outside.

[0007] The present invention is further configured such that guide rods are arranged around the base; and the sealing cover is slidably sleeved on the guide rods around the sealing cover.

[0008] The present invention is further configured such that the base is provided with a pushing block which slides along the length direction of the sealing transmission seat; the base is provided with an electric push rod; the output end of the electric push rod is connected to the pushing block; the pushing block is provided with a lifting inclined surface; and the side wall of the sealing cover is provided with a pushing pin which abuts against the lifting inclined surface.

[0009] The present invention is further configured such that the pushing block is slidably disposed between the air extraction shell and the electric push rod;

[0010] A vacuum connecting rod is provided between the vacuum piston and the pushing block; one end of the vacuum connecting rod is connected to the pushing block; the other end of the vacuum connecting rod protrudes into the first vacuum cavity and is connected to the vacuum piston.

[0011] The present invention is further configured such that the sealed transmission seat is provided with a vent hole connected to the sealed cavity; and the second air extraction cavity is connected to the sealed cavity through the vent hole.

[0012] The present invention is further configured such that a sliding frame is movably provided in the sealing cover; the sliding frame is provided with a plurality of material shifting arms at intervals along the length direction of the sealing transmission seat; the material shifting arms are used to shift the tray to move along the length direction of the sealing transmission seat.

[0013] The present invention is further configured as follows: a driving shell is provided at the bottom of the sealing cover; a driving piston is provided in a sealing manner inside the driving shell; the driving piston divides the driving shell into a first driving chamber and a second driving chamber; the first driving chamber is communicated with the outside; the second driving chamber is communicated with the sealing chamber; the driving piston is connected to a driving rod; a driving spring is provided between the driving piston and the second driving chamber; a connecting block is provided after the driving rod protrudes out of the second driving chamber; the connecting block is provided with a guide groove along the height direction; the sliding frame is provided with a connecting rod; the connecting rod is provided with a guide block; the guide block is slidably arranged in the guide groove.

[0014] The present invention is further configured such that a limit groove is provided on the inner wall of the sealing cover; a limit pin is provided at the end of the sliding frame for telescopic movement; and a limit spring is provided between the limit pin and the end of the sliding frame.

[0015] The present invention is further configured such that the limit groove comprises a left inclined limit groove, a right inclined limit groove, an upper horizontal limit groove arranged along the length direction of the sealing transmission seat, and a lower horizontal limit groove arranged along the length direction of the sealing transmission seat;

[0016] The upper horizontal limit groove, the left inclined limit groove, the lower horizontal limit groove and the right inclined limit groove are connected in sequence; the depth of the upper horizontal limit groove is the same as the depth of the left inclined limit groove; the depth of the lower horizontal limit groove near one end of the left inclined limit groove is less than the depth of the left inclined limit groove; the depth of the lower horizontal limit groove near one end of the right inclined limit groove is the same as the depth of the right inclined limit groove; the depth of the upper horizontal limit groove near one end of the right inclined limit groove is less than the depth of the right inclined limit groove;

[0017] The lower horizontal limiting groove is provided with a guiding inclined surface.

[0018] A production process based on an egg yolk crisp oil deoiling device comprises the following steps:

[0019] S1. Put the egg yolk crisps into the tray;

[0020] S2. Place the tray on top of the oil-absorbing felt;

[0021] S3, driving the sealing cover to cover the sealing transmission seat, the sealing transmission seat and the sealing cover are sealed to form a sealing cavity, and the tray is placed in the sealing cavity;

[0022] S4, driving the pumping piston to move, thereby pumping the gas in the sealed chamber into the second pumping chamber, so that the pressure in the sealed chamber is reduced;

[0023] S5. The internal pressure of the egg yolk pastry is greater than the pressure of the sealed cavity. The grease inside the egg yolk pastry seeps out under the pressure difference, flows to the tray under the action of gravity, and is guided to the oil-absorbing felt through the capillary holes.

[0024] Beneficial effects of the present invention: the present invention places the egg yolk crisp in a reduced pressure environment, so that the grease inside the egg yolk crisp seeps out due to the pressure difference between the inside and the outside, and is drained to the oil-absorbing felt through the capillary holes on the tray for absorption, thereby achieving grease removal from the egg yolk crisp and effectively preventing damage to the appearance of the egg yolk crisp. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The invention is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the structure when the sealing cover of the present invention is opened;

[0027] Figure 2 is a cross-sectional view of the sealing cover of the present invention when it is opened;

[0028] Figure 3 is a cross-sectional view from another perspective when the sealing cover of the present invention is opened;

[0029] Figure 4 This is a schematic diagram of the structure of the sealing cover of the present invention when it is closed;

[0030] Figure 5 is a cross-sectional view of the sealing cover of the present invention when it is closed;

[0031] Figure 6 is a cross-sectional view from another perspective when the sealing cover of the present invention is closed;

[0032] Figure 7 This is a schematic diagram of the structure of the present invention after the sealing cover is hidden;

[0033] Among them: 1. base; 11. sealed transmission seat; 12. sealing cover; 13. sealed cavity; 14. oil-absorbing felt; 15. tray; 16. capillary hole; 17. guide rod; 2. vacuum shell; 21. first vacuum cavity; 22. second vacuum cavity; 23. vacuum piston; 24. vacuum connecting rod; 3. electric push rod; 31. push block; 32. lifting slope; 33. push pin; 4. sliding frame; 41. material transfer arm; 42. limit pin; 5. drive shell; 51. first drive cavity; 52. second drive cavity; 53. drive piston; 54. drive rod; 55. drive spring; 61. connecting block; 62. guide groove; 63. connecting rod; 64. guide block; 71. left inclined limit groove; 72. right inclined limit groove; 73. upper horizontal limit groove; 74. lower horizontal limit groove; 75. guide slope. DETAILED DESCRIPTION

[0034] The present invention is further described in conjunction with the following examples.

[0035] Depend on Figures 1 to 7 It can be seen that the egg yolk shortbread oil removal device described in this embodiment includes a base 1; the base 1 is provided with a sealing transmission seat 11; the base 1 is provided with a sealing cover 12 on the top of the sealing transmission seat 11 for lifting and lowering; the sealing transmission seat 11 and the sealing cover 12 are sealed to form a sealing cavity 13;

[0036] An oil-absorbing felt 14 is provided on the top of the sealing transmission seat 11; a plurality of trays 15 are arranged on the top of the sealing transmission seat 11 along the length direction of the sealing transmission seat 11; a plurality of capillary holes 16 are penetrated through the bottom of the tray 15; the oil-absorbing felt 14 can be detachably installed on the top of the sealing transmission seat 11, so that the user can replace the oil-absorbing felt 14 conveniently.

[0037] The base 1 is provided with a vacuum shell 2; a vacuum piston 23 is provided in the vacuum shell 2 for sealing and movement; the vacuum piston 23 divides the vacuum shell 2 into a first vacuum chamber 21 and a second vacuum chamber 22; the second vacuum chamber 22 is connected to the sealed chamber 13; the first vacuum chamber 21 is connected to the outside.

[0038] Specifically, when the egg yolk crisp oil deoiling equipment described in this embodiment is used, the egg yolk crisp is first placed in the tray 15, and the tray 15 is placed on the top of the oil-absorbing felt 14, and then the sealing cover 12 is driven to cover the sealing transmission seat 11. After the sealing transmission seat 11 and the sealing cover 12 are sealed, a sealed chamber 13 is formed, and the tray 15 is placed in the sealed chamber 13 at this time; then the vacuum piston 23 is moved in the direction of the first vacuum chamber 21, and the volume of the second vacuum chamber 22 gradually increases, so that the gas in the sealed chamber 13 is extracted into the second vacuum chamber 22, so that the pressure in the sealed chamber 13 is reduced. At this time, since the internal pressure of the egg yolk crisp is greater than the pressure of the sealed chamber 13, the grease in the egg yolk crisp seeps out under the action of the pressure difference and flows to the tray 15 under the action of gravity. When the grease seeping from the egg yolk crisp contacts the capillary holes 16, it is guided to the oil-absorbing felt 14 due to the capillary action and its own gravity, thereby realizing the separation of grease.

[0039] In this embodiment, the egg yolk crisp is placed in a reduced pressure environment, so that the grease inside the egg yolk crisp seeps out due to the pressure difference between the inside and the outside, and is drained to the oil-absorbing felt 14 through the capillary holes 16 on the tray 15 for absorption, thereby removing the grease from the egg yolk crisp and effectively preventing damage to the appearance of the egg yolk crisp.

[0040] In the egg yolk shortbread degreasing device described in this embodiment, the base 1 is provided with guide rods 17 around it; the sealing cover 12 is slidably sleeved on the guide rods 17 around it. The above arrangement enables the sealing cover 12 to be stably lifted and lowered.

[0041] In the egg yolk shortbread degreasing equipment described in this embodiment, the base 1 is provided with a push block 31 that slides along the length direction of the sealing transmission seat 11; the base 1 is provided with an electric push rod 3; the output end of the electric push rod 3 is connected to the push block 31; the push block 31 is provided with a lifting slope 32; the side wall of the sealing cover 12 is provided with a push pin 33 that abuts against the lifting slope 32. Specifically, through the above-mentioned arrangement, when the electric push rod 3 drives the push block 31 to extend, the lifting slope 32 abuts against the push pin 33, and the push pin 33 can drive the sealing cover 12 to move upward during the upward movement of the lifting slope 32; when the electric push rod 3 drives the push block 31 to retract, the sealing cover 12 moves downward under the action of gravity.

[0042] In the egg yolk crisp oil degreasing device described in this embodiment, the push block 31 is slidably arranged between the air pumping shell 2 and the electric push rod 3; an air pumping connecting rod 24 is arranged between the air pumping piston 23 and the push block 31; one end of the air pumping connecting rod 24 is connected to the push block 31; the other end of the air pumping connecting rod 24 protrudes into the first air pumping cavity 21 and is connected to the air pumping piston 23. In the egg yolk crisp oil degreasing device described in this embodiment, the sealed transmission seat 11 is provided with a vent hole connected to the sealed cavity 13; the vent hole is not drawn in the figure; the second air pumping cavity 22 is connected to the sealed cavity 13 through the vent hole. The above arrangement makes the overall structure stable and reliable. In the egg yolk crisp oil degreasing device described in this embodiment, a sliding frame 4 is movably arranged in the sealing cover 12; the sliding frame 4 is provided with a plurality of material-pickling arms 41 at intervals along the length direction of the sealed transmission seat 11; the material-pickling arms 41 are used to move the tray 15 along the length direction of the sealed transmission seat 11. In the egg yolk crisp oil degreasing device described in this embodiment, a driving shell 5 is provided at the bottom of the sealing cover 12; a driving piston 53 is provided in the driving shell 5 in a sealing manner; the driving piston 53 divides the driving shell 5 into a first driving chamber 51 and a second driving chamber 52; the first driving chamber 51 is connected to the outside; the second driving chamber 52 is connected to the sealing chamber 13; the driving piston 53 is connected to a driving rod 54; a driving spring 55 is provided between the driving piston 53 and the second driving chamber 52; the driving rod 54 is provided with a connecting block 61 after protruding out of the second driving chamber 52; the connecting block 61 is provided with a guide groove 62 along the height direction; the sliding frame 4 is provided with a connecting rod 63; the connecting rod 63 is provided with a guide block 64; the guide block 64 is slidably provided in the guide groove 62. In the egg yolk crisp oil degreasing device described in this embodiment, a limiting groove is provided on the inner wall of the sealing cover 12; a limiting pin 42 is provided at the end of the sliding frame 4 for telescopic movement; a limiting spring is provided between the limiting pin 42 and the end of the sliding frame 4. The egg yolk pastry deoiling device described in this embodiment comprises a left inclined limiting groove 71, a right inclined limiting groove 72, an upper horizontal limiting groove 73 arranged along the length direction of the sealing transmission seat 11, and a lower horizontal limiting groove 74 arranged along the length direction of the sealing transmission seat 11; the upper horizontal limiting groove 73, the left inclined limiting groove 71, the lower horizontal limiting groove 74 and the right inclined limiting groove 72 are connected in sequence; the depth of the upper horizontal limiting groove 73 is the same as the depth of the left inclined limiting groove 71; the depth of the lower horizontal limiting groove 74 near one end of the left inclined limiting groove 71 is less than the depth of the left inclined limiting groove 71; the depth of the lower horizontal limiting groove 74 near one end of the right inclined limiting groove 72 is the same as the depth of the right inclined limiting groove 72; the depth of the upper horizontal limiting groove 73 near one end of the right inclined limiting groove 72 is less than the depth of the right inclined limiting groove 72; the lower horizontal limiting groove 74 is provided with a guiding inclined surface 75.

[0043] Specifically, in the egg yolk shortbread degreasing equipment described in this embodiment, in a natural state, the electric push rod 3 is in a fully extended state, at which time the push pin 33 is located at the top of the lifting slope 32, the sealing cover 12 is in an open state, and at this time the volume of the second air extraction chamber 22 is relatively small, and at the same time, under the action of the driving spring 55, the volume of the second driving chamber 52 is relatively large, and under the action of gravity, the limit pin 42 is located at the bottom of the left inclined limit groove 71; when the electric push rod 3 drives the push block 31 to contract, the push pin 33 gradually withdraws from the lifting slope 32, so that the sealing cover 12 moves downward and covers the sealing transmission seat 11 to form a seal;

[0044] Then the electric push rod 3 continues to contract, so that the air pumping piston 23 moves in the direction of the first air pumping chamber 21, and the volume of the second air pumping chamber 22 gradually increases, so that the gas in the sealed chamber 13 is extracted into the second air pumping chamber 22, so that the pressure in the sealed chamber 13 is reduced. At this time, since the pressure inside the egg yolk crisp is greater than the pressure in the sealed chamber 13, the grease inside the egg yolk crisp seeps out under the action of the pressure difference and flows to the tray 15 under the action of gravity. When the grease seeping out of the egg yolk crisp contacts the capillary hole 16, it is guided to the oil-absorbing felt 14 due to the capillary action and its own gravity, so that the grease is separated. In addition, the volume of the second driving chamber 52 is much smaller than the volume of the second air pumping chamber 22. In the process of the volume of the second vacuum chamber 22 gradually increasing, the driving piston 53 gradually moves toward the direction of the second driving chamber 52 under the action of atmospheric pressure, and drives the sliding frame 4 to move through the driving rod 54, the connecting block 61, the connecting rod 63 and the guide block 64. Since the depth of the lower horizontal limit groove 74 close to the end of the left inclined limit groove 71 is less than the depth of the left inclined limit groove 71, the limit pin 42 moves along the left inclined limit groove 71 and the upper horizontal limit groove 73 in turn until it falls to the top of the right inclined limit groove 72. At this time, the height of the material dispensing arm 41 is relatively high, which prevents the egg yolk crisps from being damaged during the movement of the material dispensing arm 41.

[0045] After the de-oiling is completed, the electric push rod 3 is extended again, and before the pushing pin 33 contacts the lifting slope 32, the vacuum piston 23 moves toward the second vacuum chamber 22 again, and the gas in the second vacuum chamber 22 is rushed into the sealing chamber 13, so that the driving piston 53 is reset and gradually moves toward the first driving chamber 51, and drives the sliding frame 4 to move through the driving rod 54, the connecting block 61, the connecting rod 63 and the guide block 64. Since the depth of the upper horizontal limit groove 73 near one end of the right inclined limit groove 72 is less than the depth of the right inclined limit groove 72, the limit pin 42 moves along the right inclined limit groove 72 and the lower horizontal limit groove 74 in turn until it falls to the bottom of the left inclined limit groove 71. At this time, the height of the material dispensing arm 41 is relatively low, so the limit pin 42 can drive the tray 15 to move one station during the movement of the lower horizontal limit groove 74.

[0046] Until the push pin 33 contacts the lifting slope 32, the push block 31 pushes the sealing cover 12 to open again.

[0047] The production process of the egg yolk crisp oil deoiling equipment described in this embodiment includes the following steps:

[0048] S1, put the egg yolk crisps into tray 15;

[0049] S2, placing the tray 15 on top of the oil-absorbing felt 14;

[0050] S3, driving the sealing cover 12 to cover the sealing transmission seat 11, and the sealing transmission seat 11 and the sealing cover 12 are sealed to form a sealing cavity 13, and the tray 15 is placed in the sealing cavity 13;

[0051] S4, driving the air extraction piston 23 to move, thereby extracting the gas in the sealed cavity 13 into the second air extraction cavity 22, so that the pressure in the sealed cavity 13 is reduced;

[0052] S5. The internal pressure of the egg yolk crisp is greater than the pressure of the sealed cavity 13. The grease inside the egg yolk crisp seeps out under the pressure difference, flows to the tray 15 under the action of gravity, and is guided to the oil-absorbing felt 14 through the capillary holes 16.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An egg yolk crisp oil degreasing device, characterized in that: The invention comprises a base (1); the base (1) is provided with a sealing transmission seat (11); the base (1) is provided with a sealing cover (12) at the top of the sealing transmission seat (11) for lifting and lowering; the sealing transmission seat (11) and the sealing cover (12) are sealed to form a sealing cavity (13); An oil-absorbing felt (14) is provided on the top of the sealing transmission seat (11); a plurality of trays (15) are arranged on the top of the oil-absorbing felt (14) along the length direction of the sealing transmission seat (11); a plurality of capillary holes (16) are penetrated through the bottom of the tray (15); The base (1) is provided with an air pumping shell (2); an air pumping piston (23) is provided in the air pumping shell (2) in a sealing manner; the air pumping piston (23) divides the air pumping shell (2) into a first air pumping chamber (21) and a second air pumping chamber (22); the second air pumping chamber (22) is connected to the sealing chamber (13); and the first air pumping chamber (21) is connected to the outside.

2. The egg yolk shortbread oil removal device according to claim 1, characterized in that: The base (1) is provided with guide rods (17) around its periphery; the sealing cover (12) is slidably sleeved on the guide rods (17) around its periphery.

3. The egg yolk shortbread oil removal device according to claim 1, characterized in that: The base (1) is provided with a push block (31) which slides along the length direction of the sealing transmission seat (11); the base (1) is provided with an electric push rod (3); the output end of the electric push rod (3) is connected to the push block (31); the push block (31) is provided with a lifting inclined surface (32); and the side wall of the sealing cover (12) is provided with a push pin (33) which abuts against the lifting inclined surface (32).

4. The egg yolk shortbread oil removal device according to claim 3, characterized in that: The pushing block (31) is slidably disposed between the air extraction shell (2) and the electric push rod (3); An air extraction connecting rod (24) is provided between the air extraction piston (23) and the pushing block (31); one end of the air extraction connecting rod (24) is connected to the pushing block (31); the other end of the air extraction connecting rod (24) protrudes into the first air extraction chamber (21) and is connected to the air extraction piston (23).

5. The egg yolk shortbread oil removal device according to claim 1, characterized in that: The sealed transmission seat (11) is provided with a vent hole communicating with the sealed cavity (13); the second air extraction cavity (22) is communicated with the sealed cavity (13) via the vent hole.

6. The egg yolk shortbread oil removal device according to claim 4, characterized in that: A sliding frame (4) is movably arranged in the sealing cover (12); the sliding frame (4) is provided with a plurality of material shifting arms (41) at intervals along the length direction of the sealing transmission seat (11); the material shifting arms (41) are used to shift the tray (15) to move along the length direction of the sealing transmission seat (11).

7. The egg yolk shortbread oil removal device according to claim 6, characterized in that: A driving shell (5) is provided at the bottom of the sealing cover (12); a driving piston (53) is provided in the driving shell (5) in a sealing manner; the driving piston (53) divides the driving shell (5) into a first driving chamber (51) and a second driving chamber (52); the first driving chamber (51) is communicated with the outside; the second driving chamber (52) is communicated with the sealing chamber (13); the driving piston (53) is connected to a driving rod (54); a driving spring (55) is provided between the driving piston (53) and the second driving chamber (52); a connecting block (61) is provided after the driving rod (54) protrudes out of the second driving chamber (52); the connecting block (61) is provided with a guide groove (62) along the height direction; the sliding frame (4) is provided with a connecting rod (63); the connecting rod (63) is provided with a guide block (64); the guide block (64) is slidably arranged in the guide groove (62).

8. The egg yolk shortbread oil removal device according to claim 7, characterized in that: The inner wall of the sealing cover (12) is provided with a limit groove; the end of the sliding frame (4) is telescopically provided with a limit pin (42); and a limit spring is provided between the limit pin (42) and the end of the sliding frame (4).

9. The egg yolk shortbread oil removal device according to claim 8, characterized in that: The limiting grooves include a left inclined limiting groove (71), a right inclined limiting groove (72), an upper horizontal limiting groove (73) arranged along the length direction of the sealing transmission seat (11), and a lower horizontal limiting groove (74) arranged along the length direction of the sealing transmission seat (11); The upper horizontal limit groove (73), the left inclined limit groove (71), the lower horizontal limit groove (74) and the right inclined limit groove (72) are connected in sequence; the depth of the upper horizontal limit groove (73) is the same as the depth of the left inclined limit groove (71); the depth of the lower horizontal limit groove (74) close to the left inclined limit groove (71) is less than the depth of the left inclined limit groove (71); the depth of the lower horizontal limit groove (74) close to the right inclined limit groove (72) is the same as the depth of the right inclined limit groove (72); the depth of the upper horizontal limit groove (73) close to the right inclined limit groove (72) is less than the depth of the right inclined limit groove (72); The lower horizontal limiting groove (74) is provided with a guiding inclined surface (75).

10. A production process of the egg yolk crisp oil deoiling equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing the egg yolk crisps into a tray (15); S2, placing the tray (15) on top of the oil-absorbing felt (14); S3, driving the sealing cover (12) to cover the sealing transmission seat (11), and the sealing transmission seat (11) and the sealing cover (12) are sealed to form a sealing cavity (13), and the tray (15) is placed in the sealing cavity (13); S4, driving the air extraction piston (23) to move, thereby extracting the gas in the sealed chamber (13) into the second air extraction chamber (22), so that the pressure in the sealed chamber (13) is reduced; S5. The internal pressure of the egg yolk crisp is greater than the pressure of the sealed cavity (13). The grease inside the egg yolk crisp seeps out under the pressure difference and flows to the tray (15) under the action of gravity, and is guided to the oil-absorbing felt (14) through the capillary holes (16).

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