CN114982995A

CN114982995A - A shower nozzle device for food 3D prints

Info

Publication number: CN114982995A
Application number: CN202210660759.7A
Authority: CN
Inventors: 邹世文; 姚海彪; 彭波; 占凯; 刘财平; 曾祥富
Original assignee: Ji'an Chuangxiang 3d Technology Co ltd
Current assignee: Ji'an Chuangxiang 3d Technology Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-02
Anticipated expiration: 2042-06-13
Also published as: CN114982995B

Abstract

The invention relates to a sprayer device, in particular to a sprayer device for 3D printing of food. The invention provides a spray head device for 3D printing of food, which is convenient for replacing double spray heads and a single spray head. The invention provides a nozzle device for 3D printing of food, which comprises a frame plate, a mounting plate, a rotating shaft, a placing frame and the like; the mounting panel sub-unit connection has the mounting panel, and the mounting panel left and right sides all is connected with the pivot, and equal rotary type is connected with places the frame in two pivots, places frame and deckle board contact, and two are placed and all are connected with the injection syringe in the frame, and the injection syringe sub-unit connection has the shower nozzle, and the shower nozzle runs through in placing the frame. The staff pushes down the movable sliding frame, makes the piston board extrude the material, and when the staff need use single shower nozzle, the staff removed the second sliding shaft, then pushed down the movable sliding frame, made the piston board extrude the material, and the staff conveniently realizes switching double spray and single shower nozzle through removing the second sliding shaft.

Description

A shower nozzle device for food 3D prints

Technical Field

The invention relates to a sprayer device, in particular to a sprayer device for 3D printing of food.

Background

3D food printer is a quick fashioned food manufacturing equipment that develops on 3D printing technology's basis, this equipment includes food 3D print system, operation control platform and three major parts of food capsule, in 3D food printer use, need put into food capsule edible printed material, later with recipe input machine, press the open key, the shower nozzle will be through melt the forming technology that gathers, the molding according to the predesigned will eat the material and print out with superimposed mode, and use 3D printer to reform transform food, no matter from the molding still can promote our original appetite in the taste, consequently 3D prints and prints the application of reverse side at food more and more extensively.

At present, in 3D food printer use, use single shower nozzle to print food mostly, when people need switch two shower nozzles and print food, need replace the equipment of single shower nozzle with the device of two shower nozzles, lead to people to purchase two 3D food printers, consume money.

Therefore, a nozzle device for 3D printing of food, which is convenient for replacing double nozzles and a single nozzle, needs to be designed.

Disclosure of Invention

In order to overcome the defect that money is consumed due to the fact that two 3D food printers need to be purchased and the devices with double spray heads and single spray head are replaced, the technical problem of the invention is as follows: provided is a nozzle device for 3D printing of food, which facilitates replacement of dual nozzles and a single nozzle.

The technical scheme is as follows: the utility model provides a shower nozzle device for food 3D prints, including the deckle board, the mounting panel, the apparatus further comprises a rotating shaft, place the frame, the injection syringe, the shower nozzle, extrude subassembly and direction subassembly, deckle board sub-unit connection has the mounting panel, the mounting panel left and right sides all is connected with the pivot, equal rotary type is connected with in two pivots places the frame, place frame and deckle board contact, two are placed and all are connected with the injection syringe in the frame, the injection syringe sub-unit connection has the shower nozzle, the shower nozzle runs through in placing the frame, the deckle board top is equipped with and is used for extruding the subassembly of extruding to the material, be equipped with the direction subassembly on the extrusion subassembly.

Further, extrude the subassembly including guide box, connecting plate, first sliding shaft, montant and piston board, the deckle board top is connected with the guide box, and the anterior upside of guide box is connected with the connecting plate, and the equal sliding connection in the inside left and right sides of guide box has first sliding shaft, and two first sliding shaft bottoms all are connected with the montant, and two first sliding shaft bottoms all are connected with the piston board, and the piston board can contact with the injection tube slidingtype after the lapse.

Further, the guide assembly comprises a guide rod, a sliding frame, second sliding shafts and a pulling plate, the guide rod is connected to the middle position of the bottom of the guide box, the sliding frame is connected to the guide rod in a sliding mode, the second sliding shafts are connected to the left side and the right side of the sliding frame in a sliding mode, the second sliding shafts are connected with the first sliding shafts in a clamping mode, and the pulling plate is connected to one side, close to each other, of the two second sliding shafts.

Further, still including the lifting unit who is used for the removal of auxiliary piston board, lifting unit is connected with gear motor and connecting block including lead screw, backup pad and connecting block, the anterior downside of guide box, and backup pad top intermediate position is connected with gear motor, and gear motor's output shaft has the lead screw through the coupling joint, and the carriage front side is connected with the connecting block, connecting block and lead screw threaded connection.

Further, still including being convenient for to the promotion subassembly that the material added, promote the subassembly including worker's board and circle axle, frame plate upper portion intermediate position is opened there is a style of calligraphy hole, frame plate upper portion slidingtype is connected with the worker's board, worker's board and a style of calligraphy hole slidingtype connection, the chute has all been opened to the frame plate left and right sides, the anterior left and right sides of worker's board all is connected with the circle axle, the worker's board rear portion left and right sides also all is connected with the circle axle, circle axle and chute slidingtype connection.

Further, still including being used for supplementary chucking subassembly to the material interpolation, the chucking subassembly is including the right-angle board, U type pole, cardboard and elastic component, the anterior left and right sides of carriage all is connected with the right-angle board, industry template front side is connected with U type pole, the equal slidingtype in U type pole left and right sides is connected with the cardboard, cardboard and backup pad joint, can contact with the cardboard after the right-angle board moves down, be connected with the elastic component between two cardboards, the elastic component cover is established on U type pole.

Further, still including being used for carrying out the subassembly that covers that seals to the shower nozzle, cover the subassembly including splint, rope and safety cover, two one sides of placing the frame lower part and keeping away from each other all are connected with splint, two one sides of placing the frame lower part and keeping away from each other all are connected with the rope, and the rope is located the splint downside, and two rope sub-unit connections have the safety cover, safety cover and shower nozzle joint, splint are used for placing the safety cover.

Furthermore, the rope is made of nylon rope.

The invention has the beneficial effects that: 1. the staff pushes down the movable sliding frame, makes the piston board extrude the material, and when the staff need use single shower nozzle, the staff removed the second sliding shaft, then pushed down the movable sliding frame, made the piston board extrude the material, and the staff conveniently realizes switching double spray and single shower nozzle through removing the second sliding shaft.

2. Staff starts gear motor, makes the piston plate rebound and extrudees the material, and the staff conveniently drives the piston plate through the lift subassembly and extrudees the material.

3. The staff passes through worker's board and chute contact, makes two place the frame and uses the pivot to rotate outward as the axle center, and then makes things convenient for the staff to add the material.

4. The staff passes through the safety cover and the shower nozzle joint, can prevent under the condition that the shower nozzle does not use, has the dust to get into in the shower nozzle.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic view of a first partial body structure according to the present invention.

FIG. 3 is a schematic view of a second partial body structure according to the present invention.

Fig. 4 is a schematic perspective view of a portion of an extrusion assembly of the present invention.

Fig. 5 is a schematic view of a partial perspective cross-sectional structure of an extrusion assembly of the present invention.

Fig. 6 is a schematic view of a first partially assembled body of the guide assembly of the present invention.

Fig. 7 is a schematic view of a second partially assembled body of the guide assembly of the present invention.

Fig. 8 is a schematic perspective view of a portion of the lifting assembly of the present invention.

FIG. 9 is a schematic view of a first partially assembled body of the pushing assembly of the present invention.

FIG. 10 is a schematic view of a second partially assembled body of the pushing assembly of the present invention.

Fig. 11 is a schematic perspective view of a portion of the clamping assembly of the present invention.

Fig. 12 is a schematic view of a first partial body structure of the covering assembly of the present invention.

Fig. 13 is a schematic view of a second partial body structure of the covering assembly of the present invention.

In the above drawings: 1: frame plate, 2: mounting plate, 3: rotating shaft, 4: placing frame, 5: injection tube, 6: a nozzle, 7: extrusion assembly, 71: guide box, 72: connecting plate, 73: first slide shaft, 74: vertical bar, 75: piston plate, 8: guide assembly, 81: guide bar, 82: carriage, 83: second slide shaft, 84: pulling plate, 9: lifting assembly, 91: lead screw, 92: support plate, 93: gear motor, 94: connecting block, 10: pushing assembly, 101: slotted hole, 102: form board, 103: circular shaft, 104: chute, 11: clamping assembly, 111: right-angle plate, 112: u-shaped bar, 113: card board, 114: elastic member, 12: covering assembly, 121: a clamping plate, 122: rope, 123: a protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-7, a shower nozzle device for food 3D prints, including deckle board 1, mounting panel 2, pivot 3, place frame 4, injection syringe 5, shower nozzle 6, extrude subassembly 7 and direction subassembly 8, deckle board 1 lower part has mounting panel 2 through the bolt rigid coupling, the mounting panel 2 left and right sides all is connected with pivot 3, equal rotary type is connected with on two pivot 3 and places frame 4, place frame 4 and deckle board 1 contact, two all are connected with injection syringe 5 in placing frame 4, injection syringe 5 sub-unit connection has shower nozzle 6, shower nozzle 6 runs through in placing frame 4, deckle board 1 top is equipped with extrudes subassembly 7, be equipped with direction subassembly 8 on the subassembly 7 of extruding.

As shown in fig. 1, 4 and 5, the extrusion assembly 7 includes a guide box 71, a connecting plate 72, first sliding shafts 73, vertical rods 74 and a piston plate 75, the guide box 71 is fixedly connected to the top of the frame plate 1 through bolts, the connecting plate 72 is fixedly connected to the upper side of the front portion of the guide box 71 through bolts, the first sliding shafts 73 are slidably connected to the left side and the right side of the inside of the guide box 71, the vertical rods 74 are welded to the bottoms of the two first sliding shafts 73, the piston plate 75 is fixedly connected to the bottoms of the two first sliding shafts 73 through bolts, and the piston plate 75 slides and contacts with the injection tube 5 after moving downward.

As shown in fig. 1, 6 and 7, the guide assembly 8 includes a guide rod 81, a sliding frame 82, a second sliding shaft 83 and a pulling plate 84, the guide rod 81 is welded at the middle position of the bottom of the guide box 71, the sliding frame 82 is slidably connected to the guide rod 81, the second sliding shaft 83 is slidably connected to both left and right sides of the sliding frame 82, the second sliding shaft 83 is connected to the first sliding shaft 73 in a snap-fit manner, and the pulling plate 84 is connected to one side of the two second sliding shafts 83 adjacent to each other.

When the worker needs to use the device, the worker rotates the two placing frames 4 outwards by taking the rotating shaft 3 as the axis, then the worker adds the material into the injection tube 5, after the material is added, the worker rotates the two placing frames 4 inwards by taking the rotating shaft 3 as the axis to reset, when the worker needs to perform 3D printing, the worker takes out the two fixing tools for fixing the first sliding shaft 73, so that the fixing tools do not fix the two first sliding shafts 73 any more, then the worker presses the sliding frame 82 downwards, the sliding frame 82 drives the first sliding shaft 73 to slide downwards through the second sliding shaft 83 and the pull plate 84, the vertical rod 74 and the piston plate 75 are driven to move while the first sliding shaft 73 slides downwards, and then the piston plate 75 extrudes the material in the injection tube 5 through the nozzle 6, so that the nozzle 6 is smoother in the discharging process, when the piston plate 75 reaches the lowest part of the injection tube 5, the material in the injection tube 5 is used completely, then the worker moves the sliding frame 82 upwards to reset, the sliding frame 82 moves upwards and drives the first sliding shaft 73 to move through the second sliding shaft 83 and the pull plate 84, the first sliding shaft 73 moves upwards and drives the vertical rod 74 and the piston plate 75 to move and reset, after the sliding frame 82 resets, the worker uses a fixing tool to respectively fix the two first sliding shafts 73, so that the first sliding shaft 73 does not move downwards, then the worker rotates the two placing frames 4 outwards by taking the rotating shaft 3 as the axis, then the worker pours the material into the injection tube 5 again, after the material is poured into the injection tube, the worker rotates the two placing frames 4 inwards by taking the rotating shaft 3 as the axis to reset, when the worker only needs to use the spray head 6 on the right side, the second sliding shaft 83 and the pull plate 84 on the left side of the worker move towards the right, further, the second sliding shaft 83 is separated from the first sliding shaft 73 on the left, and then the worker takes out the fixing tool on the right, so that the fixing tool does not fix the second sliding shaft 83 any more, and then the worker presses the sliding frame 82 downwards, so that the sliding frame 82 drives the second sliding shaft 83 on the right and the pulling plate 84 to move downwards, and further the second sliding shaft 83 drives the first sliding shaft 73 on the right, the vertical rod 74 and the piston plate 75 to move downwards, so that the piston plate 75 on the right extrudes the material, after the piston plate 75 finishes extruding the material, the worker moves the sliding frame 82 upwards to reset, so that the sliding frame 82 drives the second sliding shaft 83 and the pulling plate 84 to move upwards, and further the second sliding shaft 83 drives the first sliding shaft 73, the vertical rod 74 and the piston plate 75 to move upwards to reset, after the second sliding shaft 83 resets, the worker moves the second sliding shaft 83 leftwards by using the pulling plate 84, the second sliding shaft 83 is clamped with the first sliding shaft 73, then the worker fixes the first sliding shaft 73 on the right side by using a fixing tool, conversely, when the worker only needs to use the left spray head 6, the worker moves the second sliding shaft 83 and the pull plate 84 on the right side to the left, and further the second sliding shaft 83 is separated from the first sliding shaft 73 on the right side, and further the worker takes out the fixing tool on the left side, so that the fixing tool does not fix the second sliding shaft 83 any more, then the worker presses the sliding rack 82 downwards, so that the sliding rack 82 drives the second sliding shaft 83 and the pull plate 84 on the left side to move downwards, and further the second sliding shaft 83 drives the first sliding shaft 73 on the left side, the vertical rod 74 and the piston plate 75 to move downwards, so that the piston plate 75 on the left side extrudes the material, and when the piston plate 75 finishes extruding the material, the worker moves the sliding rack 82 upwards to reset, the sliding frame 82 drives the second sliding shaft 83 and the pulling plate 84 to move upwards, the second sliding shaft 83 drives the first sliding shaft 73, the vertical rod 74 and the piston plate 75 to move upwards and reset, after the second sliding shaft 83 resets, an operator moves the second sliding shaft 83 rightwards by using the pulling plate 84, the second sliding shaft 83 is clamped with the first sliding shaft 73, then the operator fixes the first sliding shaft 73 on the left side by using a fixing tool, and the operator conveniently switches the double spray heads 6 and the single spray head 6 by moving the second sliding shaft 83 and the pulling plate 84.

Example 2

As shown in fig. 1 and 8, based on embodiment 1, the present invention further includes a lifting assembly 9, the lifting assembly 9 includes a screw 91, a support plate 92, a speed reduction motor 93 and a connection block 94, the support plate 92 is connected to a lower side of a front portion of the guide box 71, the speed reduction motor 93 is fixedly connected to a middle position of a top portion of the support plate 92 through a bolt, an output shaft of the speed reduction motor 93 is connected to the screw 91 through a coupling, the connection block 94 is welded to a front side of the carriage 82, and the connection block 94 is in threaded connection with the screw 91.

When a worker needs to extrude a material, the worker starts the speed reduction motor 93, the output shaft of the speed reduction motor 93 drives the screw rod 91 to rotate through the coupler, the connecting block 94 drives the sliding frame 82 to move downwards, the sliding frame 82 drives the first sliding shaft 73, the vertical rod 74 and the piston plate 75 to move through the second sliding shaft 83 and the pull plate 84 while moving downwards, the piston plate 75 further moves downwards to extrude the material, after the piston plate 75 extrudes the material, the worker controls the output shaft of the speed reduction motor 93 to rotate in the reverse direction, the output shaft of the speed reduction motor 93 drives the screw rod 91 to rotate through the coupler in the reverse direction, the connecting block 94 drives the sliding frame 82 to move upwards, the sliding frame 82 drives the first sliding shaft 73, the vertical rod 74 and the piston plate 75 to move and reset through the second sliding shaft 83 and the pull plate 84 while moving upwards, and then the worker closes the speed reduction motor 93, the output shaft of the speed reducing motor 93 no longer drives the screw rod 91 to rotate, and the worker conveniently drives the piston plate 75 to extrude the material through the lifting assembly 9.

As shown in fig. 1, 9 and 10, the push assembly 10 is further included, the push assembly 10 includes an I-shaped plate 102 and a circular shaft 103, a straight hole 101 is formed in the middle of the upper portion of a frame plate 1, the I-shaped plate 102 is slidably connected to the upper portion of the frame plate 1, the I-shaped plate 102 is slidably connected to the straight hole 101, chutes 104 are formed in the left side and the right side of the frame plate 1, the circular shaft 103 is welded to the left side and the right side of the front portion of the I-shaped plate 102, the circular shaft 103 is also welded to the left side and the right side of the rear portion of the I-shaped plate 102, and the circular shaft 103 is slidably connected to the chutes 104.

As shown in fig. 1 and 11, the clamping device further comprises a clamping assembly 11, the clamping assembly 11 comprises right-angle plates 111, U-shaped rods 112, clamping plates 113 and elastic pieces 114, the right-angle plates 111 are welded on the left and right sides of the front portion of the sliding frame 82, the U-shaped rods 112 are connected to the front side of the tool plate 102, the clamping plates 113 are connected to the left and right sides of the U-shaped rods 112 in a sliding mode, the clamping plates 113 are clamped with the supporting plate 92, the right-angle plates 111 can contact with the clamping plates 113 after moving downwards, the elastic pieces 114 are connected between the two clamping plates 113, and the elastic pieces 114 are sleeved on the U-shaped rods 112.

The vertical angle plate 111 is driven to move when the sliding frame 82 moves downwards, the vertical angle plate 111 is driven to contact with the clamping plates 113, the two clamping plates 113 move outwards, the elastic piece 114 is stretched, after the clamping plates 113 move outwards and are separated from the supporting plate 92, the tooling plate 102 drives the circular shaft 103, the U-shaped rod 112 and the clamping plates 113 to slide downwards in the chute 104 under the influence of gravity, the two placing frames 4 rotate outwards by taking the rotating shaft 3 as an axis, after the vertical angle plate 111 is not contacted with the clamping plates 113 any more, the elastic piece 114 drives the two clamping plates 113 to move inwards to reset, when the tooling plate 102 reaches the lowest part of the chute 104, a worker can add materials into the injection pipe 5, after the materials are added, the worker moves the tooling plate 102 upwards, and drives the circular shaft 103, the U-shaped rod 112 and the clamping plates 113 to slide upwards in the chute 104 while the tooling plate 102 moves upwards, so that the two placing frames 4 rotate inwards to reset by taking the rotating shaft 3 as an axis, when the tool plate 102 is about to reach the initial position, the staff outwards moves two clamping plates 113, so that the elastic part 114 is stretched, when the clamping plates 113 reach the position of the support plate 92, the staff loosens the two clamping plates 113, so that the elastic part 114 drives the two clamping plates 113 to inwards move, so that the two clamping plates 113 are clamped with the support plate 92, the staff contacts with the chute 104 through the tool plate 102, so that the two placing frames 4 outwards rotate by taking the rotating shaft 3 as the axis, and the staff is convenient to add materials.

As shown in fig. 1, fig. 12 and fig. 13, further including covering the subassembly 12, cover the subassembly 12 including splint 121, rope 122 and safety cover 123, two place the one side that frame 4 lower part kept away from each other and all have splint 121 through the bolt rigid coupling, two place one side that frame 4 lower part kept away from each other and all be connected with rope 122, rope 122 is located splint 121 downside, two rope 122 sub-unit connections have safety cover 123,

safety cover

123 and 6 joints of shower nozzle, splint 121 is used for placing safety cover 123.

When the staff need use shower nozzle 6, the staff separates safety cover 123 and shower nozzle 6, after safety cover 123 and shower nozzle 6 separate, the staff places safety cover 123 on splint 121, and then the staff can use shower nozzle 6, use shower nozzle 6 to accomplish the back when the staff, the staff takes out safety cover 123 from splint 121, and then with

safety cover

123 and 6 joints of shower nozzle again, the staff passes through

safety cover

123 and 6 joints of shower nozzle, can prevent under the condition that shower nozzle 6 does not use, there is the dust to get into in the shower nozzle 6, because of the material of rope 122 is the nylon rope, the nylon rope has high tensile strength and wearability, make rope 122 life longer.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a shower nozzle device for food 3D prints, including deckle board (1), mounting panel (2), pivot (3), place frame (4), injection syringe (5), shower nozzle (6) and extrusion component (7), deckle board (1) sub-unit connection has mounting panel (2), the mounting panel (2) left and right sides all is connected with pivot (3), equal rotary type is connected with places frame (4) on two pivot (3), place frame (4) and deckle board (1) contact, two are placed and all are connected with injection syringe (5) in frame (4), injection syringe (5) sub-unit connection has shower nozzle (6), shower nozzle (6) run through in placing frame (4), deckle board (1) top is equipped with extrusion component (7) that are used for extruding the material, its characterized in that: the extrusion device is characterized by further comprising a guide assembly (8), wherein the guide assembly (8) is arranged on the extrusion assembly (7).

2. The nozzle device for 3D printing of food products according to claim 1, wherein: the extrusion assembly (7) comprises a guide box (71), a connecting plate (72), first sliding shafts (73), vertical rods (74) and piston plates (75), the guide box (71) is connected to the top of the frame plate (1), the connecting plate (72) is connected to the upper side of the front portion of the guide box (71), the first sliding shafts (73) are connected to the left side and the right side of the inner portion of the guide box (71) in a sliding mode, the vertical rods (74) are connected to the bottoms of the two first sliding shafts (73), the piston plates (75) are connected to the bottoms of the two first sliding shafts (73), and the piston plates (75) can be in sliding contact with the injection pipes (5) after moving downwards.

3. The nozzle device for 3D printing of food according to claim 2, wherein the guide assembly (8) comprises a guide rod (81), a sliding frame (82), second sliding shafts (83) and a pulling plate (84), the guide rod (81) is connected to the middle position of the bottom of the guide box (71), the sliding frame (82) is slidably connected to the guide rod (81), the second sliding shafts (83) are slidably connected to the left and right sides of the sliding frame (82), the second sliding shafts (83) are clamped with the first sliding shaft (73), and the pulling plate (84) is connected to the side, close to each other, of the two second sliding shafts (83).

4. The spray head device for 3D printing of food according to claim 3, further comprising a lifting assembly (9) for assisting the movement of the piston plate (75), wherein the lifting assembly (9) comprises a screw rod (91), a support plate (92), a speed reduction motor (93) and a connecting block (94), the support plate (92) is connected to the lower side of the front portion of the guide box (71), the speed reduction motor (93) is connected to the middle position of the top of the support plate (92), an output shaft of the speed reduction motor (93) is connected with the screw rod (91) through a coupling, the connecting block (94) is connected to the front side of the sliding frame (82), and the connecting block (94) is in threaded connection with the screw rod (91).

5. The sprayer device for 3D printing of food according to claim 4, further comprising a pushing assembly (10) convenient for adding materials, wherein the pushing assembly (10) comprises a tool plate (102) and a circular shaft (103), a straight hole (101) is formed in the middle of the upper portion of the frame plate (1), the tool plate (102) is connected to the upper portion of the frame plate (1) in a sliding manner, the tool plate (102) is connected to the straight hole (101) in a sliding manner, inclined grooves (104) are formed in the left side and the right side of the frame plate (1), the circular shaft (103) is connected to the left side and the right side of the front portion of the tool plate (102), the circular shaft (103) is connected to the left side and the right side of the rear portion of the tool plate (102), and the circular shaft (103) is connected to the inclined grooves (104) in a sliding manner.

6. The sprayer device for 3D printing of food according to claim 5, further comprising a clamping assembly (11) for assisting in adding materials, wherein the clamping assembly (11) comprises right-angle plates (111), U-shaped rods (112), clamping plates (113) and elastic pieces (114), the right-angle plates (111) are connected to the left and right sides of the front portion of the sliding frame (82), the U-shaped rods (112) are connected to the front side of the tooling plate (102), the clamping plates (113) are connected to the left and right sides of the U-shaped rods (112) in a sliding manner, the clamping plates (113) are clamped with the supporting plate (92), the right-angle plates (111) can be in contact with the clamping plates (113) after moving downwards, the elastic pieces (114) are connected between the two clamping plates (113), and the elastic pieces (114) are sleeved on the U-shaped rods (112).

7. The nozzle device for 3D printing of food according to claim 6, further comprising a cover assembly (12) for sealing the nozzle (6), wherein the cover assembly (12) comprises a clamping plate (121), a rope (122) and a protective cover (123), the clamping plate (121) is connected to one side of the lower portion of each of the two placement frames (4) away from each other, the rope (122) is located on the lower side of the clamping plate (121), the protective cover (123) is connected to the lower portion of each of the two ropes (122), the protective cover (123) is connected to the nozzle (6) in a clamping manner, and the clamping plate (121) is used for placing the protective cover (123).

8. The nozzle device for 3D printing of food according to claim 7, wherein the rope (122) is made of nylon rope.