CN110896975A - Ma kalong calico printing machine - Google Patents

Abstract

The invention relates to a macaron printing machine, which is applied to the field of food processing machinery and comprises a workbench, a belt conveyor and a base frame, wherein the belt conveyor and the base frame are arranged on the workbench; the workbench is provided with a liquid storage box for storing edible pigment, a sponge block is arranged in the liquid storage box, when the reversing plate is in the initial position, one printing head is positioned above the belt conveyor, and the other printing head is positioned above the sponge block. The invention has the effect of reducing the production cost of the macarons.

Description

Ma kalong calico printing machine

Technical Field

The invention relates to the field of food processing machinery, in particular to a macarons printing machine.

Background

Macarons, also known as macarons and french pancakes, are french desserts made of protein, almond powder, white granulated sugar and frosting, and with fruit jam or cream. The existing makalong manufacturing process mainly comprises raw material acceptance, batching, mixing and stirring, slip casting, baking, cooling and decoration.

In the actual processing and production process, in order to meet higher requirements of people, more and more cake manufacturers pay more attention to the shape and color of cakes, and hope to meet the requirements of consumers visually, so that the manufacturers generally adopt baking appliances with patterns, so that foods with patterns can be integrally formed, but the mode has large demand on the baking appliances, and the production cost is high.

Disclosure of Invention

The invention aims to provide a macarons printing machine, which has the advantages that: the production cost of the macarons is reduced.

The technical purpose of the invention is realized by the following technical scheme: a macarons printing machine comprises a workbench, a belt conveyor and a base frame, wherein the belt conveyor and the base frame are arranged on the workbench, the belt conveyor penetrates through the base frame, a horizontal reversing plate is rotatably connected to the base frame, two pushing cylinders are arranged on the bottom surface of the reversing plate, printing heads are arranged on piston rods of the two pushing cylinders through connecting pieces, a servo motor is arranged on the base frame, and a motor shaft of the servo motor is connected with the reversing plate; the worktable is provided with a liquid storage box for storing edible pigment, a sponge block is arranged in the liquid storage box, when the reversing plate is at an initial position, one of the printing heads is positioned above the belt conveyor, and the other printing head is positioned above the sponge block.

By adopting the technical scheme, during processing, an operator starts the belt conveyor first, the macarons are placed on the belt conveyor one by one, when the macarons are conveyed to the position below the printing head, the belt conveyor is suspended, the pushing cylinder corresponding to the printing head is started to drive the printing head to descend and print patterns on the macarons, meanwhile, the second pushing cylinder is started to drive the second printing head to descend to abut against the sponge block, and edible pigment is coated; after the first printing head is printed and dyed, the servo motor is started to drive the reversing plate to rotate 180 degrees, the belt conveyor is started to convey the next macarons to the position below the second printing head for printing and dyeing operation, and the steps are repeated in such a circulating manner, so that the printing and dyeing operation is convenient and rapid, continuous printing and dyeing are realized, and the processing production efficiency and the product quality are favorably improved; the patterns are printed and dyed in batches by replacing barbecue appliances with the printing heads, so that the number of the barbecue appliances is reduced, and the production cost of the macarons is further reduced; in addition, the printing head adopts a detachable connection mode, an operator can select printing heads with different patterns to replace according to actual needs, and the application range of the printing machine is widened.

The invention is further configured to: the connecting piece includes the solid fixed cylinder, sets up two recesses and the stopper of sliding connection in the recess on the solid fixed cylinder, the solid fixed cylinder is connected on the piston rod of top pushing cylinder, outside the recess was stretched out to the one end of stopper, and stretch out all to be equipped with the otic placode on the wall of the both sides of the back of the body of one end, the otic placode be connected with extension spring between the solid fixed cylinder lateral wall, the one end of stamp head is pegged graft in the solid fixed cylinder, and has seted up two spacing grooves on the stamp head lateral wall, works as extension spring is when natural state, the stopper inserts the spacing inslot.

Through adopting above-mentioned technical scheme, when dismantling the stamp head, the operator holds two stoppers and keeps away from each other, treats that the stopper shifts out alright lift the stamp head off behind the spacing groove, and is simple and convenient.

The invention is further configured to: the side wall of the printing head is provided with a positioning block, and the inner wall of the fixed cylinder is provided with a positioning groove for the positioning block to slide in.

Through adopting above-mentioned technical scheme, prescribe a limit to the position of spacing groove through the cooperation of locating piece and constant head tank, provide convenience for the installation work of stamp head.

The invention is further configured to: the utility model discloses a printing machine, including bed frame, carriage, drive cylinder, bearing frame, horizontal direction, a plurality of confession stamp head male through-holes, it has the carriage that removes along vertical direction to slide connection in the bed frame, be equipped with the first cylinder that drives on the bed frame, the first cylinder that drives is connected with the carriage that drives, slide connection has the flat board that removes along the horizontal direction in the carriage, a plurality of confession stamp head male through-holes have been seted up on the flat board, it drives the cylinder to be equipped with the second on the carriage, the piston rod and the dull and stereotyped connection.

Through adopting above-mentioned technical scheme, the operator puts into the stamp head that has different patterns in advance at the through-hole, when the stamp head on the top pushing cylinder needs to be changed, first drive actuating cylinder and second cylinder drive the carriage and the flat removal respectively, and it cooperatees with the reloading piece, have realized the automatic change of stamp head, have further increased calico printing machine's flexibility.

The invention is further configured to: the reloading piece comprises a plurality of servo cylinders arranged on the bottom surface of the flat plate and push plates connected to piston rods of the servo cylinders, the servo cylinders correspond to the through holes one to one, two ejector rods which are symmetrically distributed are arranged on the upper end surface of the flat plate in the positions of the through holes, the side wall of each ejector rod is provided with a first wedge surface and a second wedge surface corresponding to the ejector rods, and guide grooves corresponding to the ejector rods are formed in the limiting blocks, and the groove walls of the guide grooves are provided with second wedge surfaces matched with the first wedge surfaces.

By adopting the technical scheme, the second driving cylinder is started to push the flat plate to advance, so that the through hole corresponds to the printing head on the pushing cylinder, the first driving cylinder is started to drive the bearing frame to ascend integrally, the ejector rod is inserted into the guide groove, and when the first wedge-shaped surface is attached to the second wedge-shaped surface, the servo cylinder drives the push plate to move upwards to support the printing head; along with the continuous rising of the ejector rod, the first wedge-shaped surface extrudes the second wedge-shaped surface to force the two limiting blocks to be away from each other and move out of the limiting grooves, meanwhile, the servo cylinder drives the push plate to correspondingly descend, and the printing head moves out of the fixed cylinder under the action of gravity; the first actuating cylinder that drives afterwards drives, the drive carriage descends, make ejector pin and stopper separation, the second drives actuating cylinder and starts, promote the flat board and gos forward, make new stamp head relative with the solid fixed cylinder, repeat above-mentioned step and make two stoppers open, servo cylinder starts, the drive push pedal upwards promotes new stamp head and inserts in the solid fixed cylinder, the first actuating cylinder that drives the carriage and descends, the push pedal then corresponding continuation rises, insert the spacing groove until the stopper, it is fixed to accomplish the stamp head, and is convenient and fast.

The invention is further configured to: and the flat plate is provided with a clamping groove for embedding the positioning block part.

Through adopting above-mentioned technical scheme, utilize the cooperation of locating piece and constant head tank to restrict the rotation of stamp head to the support of stamp head has been stabilized.

The invention is further configured to: and chamfers are arranged at two ends of the positioning block.

Through adopting above-mentioned technical scheme, the chamfer has reduced the possibility that the locating piece is hindered when getting into draw-in groove or constant head tank.

The invention is further configured to: the cleaning device comprises a workbench, a cleaning box, a rubber pad, a first driving cylinder, a second driving cylinder, a piston rod, a first sliding plate, a second sliding plate, a third driving cylinder and a third driving cylinder, wherein the workbench is provided with the cleaning box, the cleaning box is provided with a through groove, the cleaning box is connected with the two sliding plates in a sliding manner, the two sliding plates are used for covering the notch of the through groove; a water pipe is arranged in the cleaning box, one end of the water pipe is closed, the other end of the water pipe extends out of the cleaning box, and a plurality of atomizing nozzles are arranged on the water pipe; the push plate is arranged on a piston rod of the servo cylinder in a penetrating mode, the piston rod of the servo cylinder is connected with adjusting nuts in a threaded mode on two sides of the push plate, and elastic pads are arranged on one sides, facing the push plate, of the adjusting nuts.

By adopting the technical scheme, when the printing head needs to be cleaned, an operator starts the first driving air cylinder, the first driving air cylinder drives the bearing frame to descend so that the printing head passes through the through groove, and the third driving air cylinder starts to drive the two sliding plates to be close to each other until the slot is spliced with the printing head; the operator switches on raceway and high-pressure water source, and atomizer begins to spray water and washs the stamp head, because logical groove notch is sheltered by the slide, has reduced the condition emergence that water smoke outwards wafts, has kept the clean and tidy of surrounding environment, and atomizer spun water smoke coverage is wide simultaneously, does benefit to reduce and washs the dead angle.

The invention is further configured to: the belt conveyor is provided with a plurality of soft pads for placing the macarons.

Through adopting above-mentioned technical scheme, when the stamp head contradicts with the macarons, the cushion has played the effect of elasticity buffering, has reduced the possibility that rigid contact appears in stamp head and macarons.

The invention is further configured to: the sponge block is externally provided with a middle ring, the side wall of the middle ring is provided with two first support plates which are symmetrically distributed, adjusting columns penetrate through the two first support plates, the adjusting columns are in threaded connection with limiting nuts located below the first support plates, the side wall of the liquid storage box is provided with second support plates corresponding to the two first support plates, and the lower ends of the adjusting columns are connected with the second support plates.

By adopting the technical scheme, an operator can twist the limiting nut to ascend or descend and adjust the contact area of the edible pigment in the sponge block and the liquid storage box, so that the edible pigment accumulated in the sponge block is maintained in a certain range, and the printing and dyeing uniformity is improved.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the single printing head can print and print patterns on batches of macarons, so that the number of the macarons required by the traditional baking device is reduced, the processing cost of the macarons is reduced, and the quality of finished products of the macarons is improved;

2. the two printing heads work alternately, so that the time for the single printing head to be stained with the edible pigment is saved, the speed is high, and the efficiency is high; the operator can change different stamp heads automatically according to actual need, and is convenient nimble, and application scope is wide.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram for embodying the reversing plate in this embodiment.

Fig. 3 is a schematic structural diagram for embodying the liquid storage box and the sponge block in the embodiment.

Fig. 4 is a schematic structural diagram for embodying the connecting member of the present embodiment.

Fig. 5 is a schematic structural diagram for embodying the carrying frame and the flat plate in the present embodiment.

Fig. 6 is an enlarged view at a in fig. 5.

Fig. 7 is a schematic structural diagram of the material changing part in the embodiment.

Fig. 8 is a schematic structural diagram for embodying a push plate in the present embodiment.

Fig. 9 is a schematic structural diagram for embodying the slide board in the present embodiment.

Fig. 10 is a schematic structural diagram of a water pipe according to the present embodiment.

In the figure, 1, a workbench; 11. a belt conveyor; 111. a soft cushion; 12. a base frame; 13. a reversing plate; 14. a pushing cylinder; 141. printing head; 15. a servo motor; 16. a liquid storage box; 17. a sponge block; 2. a connecting member; 21. a fixed cylinder; 22. a groove; 23. a limiting block; 24. an ear plate; 25. an extension spring; 26. a limiting groove; 27. positioning blocks; 271. chamfering; 28. positioning a groove; 3. a bearing frame; 31. a first driving cylinder; 32. a second driving cylinder; 33. a flat plate; 331. a through hole; 332. a card slot; 4. replacing the material; 41. a servo cylinder; 42. pushing the plate; 43. a top rod; 431. a first wedge-shaped face; 44. a guide groove; 45. a second wedge-shaped face; 5. a cleaning tank; 51. a through groove; 52. a slide plate; 521. a slot; 5211. a rubber pad; 53. a third driving cylinder; 54. a water delivery pipe; 55. an atomizing spray head; 56. adjusting the nut; 561. an elastic pad; 6. an intermediate ring; 61. a first support plate; 62. a second support plate; 63. an adjustment column; 64. and a limiting nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a Maka dragon calico printing machine, as shown in fig. 1, includes workstation 1, band conveyer 11 and bed frame 12 of setting on workstation 1, and band conveyer 11 passes in bed frame 12, is equipped with the cushion 111 that is used for placing maka dragon on band conveyer 11's the belt, and cushion 111 distributes along the belt outline of band conveyer 11 and has a plurality ofly.

As shown in fig. 2 and 3, a horizontal reversing plate 13 is rotatably connected to the base frame 12, pushing cylinders 14 are respectively arranged at two ends of the bottom surface of the reversing plate 13 along the length direction, the axial lines of the pushing cylinders 14 are perpendicular to the reversing plate 13, printing heads 141 are respectively connected to piston rods of the two pushing cylinders 14 through connecting pieces 2, a servo motor 15 is arranged on the base frame 12, and a motor shaft of the servo motor 15 is connected to the reversing plate 13; a liquid storage box 16 for storing edible pigment is arranged on the workbench 1, a sponge block 17 for adsorbing and storing the edible pigment is arranged in the liquid storage box 16, one end of the sponge block 17 extends out of the liquid storage box 16, meanwhile, a middle ring 6 is also arranged outside the sponge block 17, two first support plates 61 which are symmetrically distributed about the axis of the middle ring 6 are arranged on the side wall of the middle ring 6, second support plates 62 corresponding to the two first support plates 61 are arranged on the side wall of the liquid storage box 16, adjusting columns 63 are arranged on the two second support plates 62, one end of each adjusting column 63 upwards penetrates through the corresponding first support plate 61, and limiting nuts 64 are connected to the adjusting columns 63 through threads below the first support plates 61, so that the first support plates 61 are supported on the limiting nuts 64; when the reversing plate 13 is at the initial position, the length direction of the reversing plate 13 is perpendicular to the belt conveyor 11, one printing head 141 is positioned above the belt conveyor 11, the printing head 141 is marked as A, and the other printing head 141 is positioned above the sponge block 17, and the printing head 141 is marked as B.

The working process is as follows: before printing and dyeing, an operator firstly starts the servo motor 15 to drive the reversing plate 13 to rotate 180 degrees, so that the printing head A141 rotates to the position above the sponge block 17, the pushing cylinder 14 is started to drive the printing head A141 to descend to extrude the sponge block 17, the edible pigment of the sponge block 17 is coated on the printing head A141, then the printing head A141 ascends, the servo motor 15 rotates reversely, and the reversing plate 13 rotates to the initial position; after the preparation work is finished, an operator starts the belt conveyor 11 first, the baked macarons are placed on the soft pad 111 one by one, when the macarons are conveyed to the position below the A printing head 141, the belt conveyor 11 is stopped temporarily, the pushing cylinder 14 is started, the piston rod of the pushing cylinder 14 drives the A printing head 141 to descend until the A printing head 141 is abutted against the macarons, patterns are printed on the surface of the macarons, and meanwhile, the B printing head 141 moves downwards under the driving of the corresponding pushing cylinder 14 and extrudes the sponge block 17 to finish the smearing of the edible pigment; later A stamp head 141 and B stamp head 141 rise, servo motor 15 starts, drive reversing plate 13 rotates 180 degrees, A stamp head 141 and B stamp exchange position, band conveyer 11 restarts, move next macarons to B stamp head 141 below and carry out printing and dyeing work, so circulate, accomplished and printed the pattern to macarons in batches, convenient and fast, reduced the required quantity of a traditional mould-out pattern macarons mode to the baking apparatus, macarons' processing cost has been reduced, two stamp heads 141 alternate work simultaneously, the speed piece, the cycle is short, single stamp head 141 pause has been saved, paint, start required time, do benefit to and improve work efficiency.

When liquid level descends to and the separation of sponge piece 17 in the stock solution box 16, the operator twists stop nut 64 and moves down for first extension board 61 drives sponge piece 17 and moves rated distance down, guarantees that the edible pigment volume of sponge piece 17 absorbable at every turn maintains in certain extent, has reduced the edible pigment volume in the sponge piece 17 too much and leads to the increase of the volume of paining on the stamp head 141, and then influences the possibility of pattern printing and dyeing quality.

As shown in fig. 4, the connecting member 2 includes a fixed cylinder 21 connected to the piston rod of the pushing cylinder 14, two grooves 22 formed in the fixed cylinder 21, and a limiting block 23 slidably connected in the grooves 22, the two limiting blocks 23 are symmetrically distributed about the axis of the fixed cylinder 21 and move along the radial direction of the fixed cylinder 21, one end of the limiting block 23 extends out of the groove 22, two opposite side walls of the extending end are both provided with an ear plate 24, and a tension spring 25 is connected between the ear plate 24 and the side wall of the fixed cylinder 21; one end of the printing head 141 is inserted into the fixed cylinder 21, the side wall of one end inserted into the fixed cylinder 21 is provided with two limiting grooves 26, the side wall of the printing head 141 is also provided with a positioning block 27, two ends of the positioning block 27 are both provided with chamfers 271, and the inner wall of the positioning cylinder is provided with a positioning groove 28; when the printing head 141 is inserted into the fixed cylinder 21 and the positioning block 27 slides into the positioning groove 28, the limiting groove 26 is right opposite to the groove 22, the limiting block 23 is inserted into the limiting groove 26 to limit the movement of the printing head 141, when the printing head 141 needs to be detached, an operator only needs to pull the two limiting blocks 23 to move out of the limiting groove 26, the operation is simple and rapid, convenience is provided for the operator to replace the printing heads 141 with different patterns, and the flexibility of the printing machine is improved.

As shown in fig. 5 and 6, a carrying frame 3 moving in the vertical direction is slidably connected in the base frame 12, a first driving cylinder 31 is arranged on the base frame 12, the first driving cylinder 31 is connected with the carrying frame 3, the carrying frames 3 are horizontally distributed and a flat plate 33 is slidably connected in the carrying frame 3, a second driving cylinder 32 is arranged on the carrying frame 3, and a piston rod of the second driving cylinder 32 is connected with the flat plate 33 and used for driving the flat plate 33 to move along the length direction of the carrying frame 3; as shown in fig. 8, the plate 33 is provided with a plurality of through holes 331 and locking grooves 332, wherein the through holes 331 are equidistantly distributed along the length direction of the plate 33, the locking grooves 332 are in one-to-one correspondence with the through holes 331 and are communicated with the through holes 331, when the printing head 141 is inserted into the through holes 331, the positioning block 27 falls into the locking grooves 332 to limit the rotation of the printing head 141, and the plate 33 is provided with the material changing member 4 for changing the printing head 141.

As shown in fig. 6 and 7, the material changing part 4 includes a plurality of servo cylinders 41 disposed on the bottom surface of the flat plate 33 and push plates 42 connected to piston rods of the servo cylinders 41, the servo cylinders 41 correspond to the through holes 331 one to one, two ejector rods 43 symmetrically distributed with respect to the through holes 331 are disposed on the through holes 331 on the upper end surface of the flat plate 33, first wedge surfaces 431 are disposed on opposite sides of the two ejector rods 43, guide grooves 44 corresponding to the ejector rods 43 are disposed on the two limit blocks 23, and second wedge surfaces 45 matched with the first wedge surfaces 431 are disposed on groove walls of the guide grooves 44.

Printing head replacement flow: when the printing head 141 is replaced, the servo motor 15 is started to drive the reversing plate 13 to rotate to a position parallel to the belt conveyor 11, and the reversing plate 13 and the flat plate 33 are in the same linear direction; the second driving cylinder 32 is started, the driving plate 33 advances to the lower side of the print head 141 and makes the print head 141 opposite to the empty through hole 331, the first driving cylinder 31 is started, the carriage 3 is driven to move upwards, the push rod 43 is inserted into the guide groove 44, when the first wedge-shaped surface 431 is attached to the second wedge-shaped surface 45, the servo cylinder 41 is started and drives the push plate 42 to move upwards to support the printing head 141, and along with the continuous upward movement of the ejector rod 43, the second wedge-shaped surface 45 drives the limiting block 23 to move out of the limiting groove 26 under the extrusion of the first wedge-shaped surface 431, in the process, the servo cylinder 41 drives the push plate 42 to descend, the printing head 141 moves downwards along with the push plate 42, so that the limiting groove 26 is staggered with the groove 22 until the positioning block 27 is inserted into the positioning groove 28, meanwhile, the first driving cylinder 31 drives the carrying frame 3 to move downwards integrally, so that the push rod 43 is completely separated from the limiting block 23 and moves to the lower part of the fixed cylinder 21.

The piston rod of the second driving cylinder 32 pushes the flat plate 33, so that a new printing head 141 moves to a position right below the fixed cylinder 21, the first driving cylinder 31 drives the bearing frame 3 to move upwards, the ejector rod 43 is inserted into the guide groove 44, when the first wedge-shaped surface 431 extrudes the second wedge-shaped surface 45 to enable the end part of the limiting block 23 to move into the groove 22, the servo cylinder 41 drives the push plate 42 to push the printing head 141 upwards, so that the printing head 141 is inserted into the fixed cylinder 21, at this time, the first driving cylinder 31 drives the bearing frame 3 to move downwards, the servo cylinder 41 drives the push plate 42 to correspondingly continue to ascend until the limiting block 23 is inserted into the limiting groove 26, finally, the bearing frame 3 moves downwards, the flat plate 33 moves backwards to reset, the printing head 141 is replaced, and the method is convenient and fast and beneficial to reducing.

As shown in fig. 9 and 10, a cleaning box 5 located below the carrying frame 3 is arranged on the workbench 1, a through groove 51 is formed in the cleaning box 5, the size of the through groove 51 is larger than that of the printing head 141, two sliding plates 52 which move relatively are connected to the cleaning box 5 in a sliding manner, when the two sliding plates 52 are in conflict, the through groove 51 is covered by the two sliding plates 52, a slot 521 matched with the outline of the printing head 141 is formed in one end of each of the two sliding plates 52 which are in conflict with each other, a rubber pad 5211 is arranged on the groove wall 521 of the slot, two third driving cylinders 53 are arranged on the cleaning box 5, the two third driving cylinders 53 respectively correspond to the two sliding plates 52, and piston rods of the third driving cylinders 53 are connected. A water pipe 54 is arranged in the cleaning box 5, one end of the water pipe 54 is closed, the other end of the water pipe extends out of the cleaning box 5, the extending end of the water pipe 54 is used for being communicated with a high-pressure water source, and a plurality of atomizing nozzles 55 distributed along the length direction of the water pipe 54 are arranged on the water pipe.

As shown in fig. 8, the push plate 42 is disposed on the piston rod of the servo cylinder 41 in a penetrating manner, the piston rod of the servo cylinder 41 is connected with the adjusting nuts 56 at both sides of the push plate 42 in a threaded manner, one side of the adjusting nut 56 facing the push plate 42 is provided with an elastic pad 561 abutting against the push plate 42, the elastic pad 561 is in an elastic deformation state, and the difficulty of rotation of the push plate 42 is increased.

As shown in fig. 8 and 10, when the printing head 141 needs to be cleaned, an operator rotates the push plate 42 to be staggered with the lower end of the printing head 141, then starts the servo cylinder 41 to drive the push plate 42 to move upwards, then starts the second driving cylinder 32 (as shown in fig. 6) to push the flat plate 33 to move, so that the printing head 141 to be cleaned moves right above the through groove 51, the first driving cylinder 31 starts to drive the carrying frame 3 to descend, so that the lower end of the printing head 141 extends into the cleaning box 5, at the moment, the two third driving cylinders 53 start simultaneously to push the two sliding plates 52 to be close to each other until the slot 521 is plugged with a stamp, the operator connects the water pipe 54 with a high-pressure water source, and each atomizing nozzle 55 sprays water mist to clean the end of the printing head 141, which is simple and convenient, because the notch of the through groove 51 is covered, the possibility of water mist scattering is reduced, and the drying of, the safety and the sanitation of the macarons processing are increased.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The utility model provides a macarons calico printing machine which characterized in that: the automatic printing machine comprises a workbench (1), a belt conveyor (11) arranged on the workbench (1) and a base frame (12), wherein the belt conveyor (11) penetrates through the base frame (12), the base frame (12) is rotatably connected with a horizontal reversing plate (13), two pushing cylinders (14) are arranged on the bottom surface of the reversing plate (13), printing heads (141) are arranged on piston rods of the two pushing cylinders (14) through connecting pieces (2), a servo motor (15) is arranged on the base frame (12), and a motor shaft of the servo motor (15) is connected with the reversing plate (13); be equipped with stock solution box (16) that is used for storing edible pigment on workstation (1), be equipped with sponge piece (17) in stock solution box (16), when reversing plate (13) is in initial position, one stamp head (141) are located band conveyer (11) top, another stamp head (141) are located sponge piece (17) top.

2. The macarons printing machine of claim 1, further comprising: connecting piece (2) are including solid fixed cylinder (21), set up two recess (22) on solid fixed cylinder (21) and sliding connection stopper (23) in recess (22), gu fixed cylinder (21) is connected on the piston rod that pushes up actuating cylinder (14), outside recess (22) was stretched out to the one end of stopper (23), and stretch out all be equipped with otic placode (24) on the wall of the back of the body both sides of one end mutually, otic placode (24) be connected with extension spring (25) between solid fixed cylinder (21) lateral wall, the one end of stamp head (141) is pegged graft in gu fixed cylinder (21), and has seted up two spacing grooves (26) on stamp head (141) lateral wall, works as when extension spring (25) are in natural state, stopper (23) insert in spacing groove (26).

3. The macarons printing machine of claim 2, wherein: the side wall of the printing head (141) is provided with a positioning block (27), and the inner wall of the fixed cylinder (21) is provided with a positioning groove (28) for the positioning block (27) to slide in.

4. The macarons printing machine of claim 3, wherein: the utility model discloses a printing machine, including bed frame (12), carriage (3), bearing frame (3), first drive actuating cylinder (31) are equipped with on bed frame (12), first drive actuating cylinder (31) are connected with carriage (3), sliding connection has dull and stereotyped (33) along the horizontal direction removal in carriage (3), set up a plurality of confession stamp head (141) male through-holes (331) on dull and stereotyped (33), it drives actuating cylinder (32) to be equipped with the second on carriage (3), the piston rod that the second drove actuating cylinder (32) is connected with dull and stereotyped (33), be equipped with reloading spare (4) that are used for changing stamp head (141) on dull and stereotyped (33).

5. The macarons printing machine of claim 4, wherein: material changing part (4) include a plurality of servo cylinder (41) that set up at dull and stereotyped (33) bottom surface and connect push pedal (42) on each servo cylinder (41) piston rod, servo cylinder (41) and through-hole (331) one-to-one, dull and stereotyped (33) up end all is equipped with ejector pin (43) of two symmetric distributions in each through-hole (331), two ejector pin (43) lateral wall all is equipped with first wedge face (431), two guide slot (44) corresponding with ejector pin (43) have all been seted up on stopper (23), be equipped with on guide slot (44) cell wall with first wedge face (431) matched with second wedge face (45).

6. The macarons printing machine of claim 5, wherein: the flat plate (33) is provided with a clamping groove (332) for partially embedding the positioning block (27).

7. The macarons printing machine of claim 6, wherein: and chamfers (271) are arranged at two ends of the positioning block (27).

8. The macarons printing machine of claim 4, wherein: the cleaning device is characterized in that a cleaning box (5) is arranged on the workbench (1), a through groove (51) is formed in the cleaning box (5), two sliding plates (52) used for covering the notch of the through groove (51) are connected to the cleaning box (5) in a sliding mode, slots (521) matched with the outer contour of the printing head (141) are formed in the opposite ends of the two sliding plates (52), rubber pads (5211) are arranged on the slot walls of the slots (521), two third driving cylinders (53) are arranged on the cleaning box (5), and piston rods of the two third driving cylinders (53) are connected with the two sliding plates (52) respectively; a water pipe (54) is arranged in the cleaning box (5), one end of the water pipe (54) is closed, the other end of the water pipe extends out of the cleaning box (5), and a plurality of atomizing nozzles (55) are arranged on the water pipe (54); the push plate (42) penetrates through a piston rod of the servo cylinder (41), the piston rod of the servo cylinder (41) is in threaded connection with adjusting nuts (56) on two sides of the push plate (42), and elastic pads (561) are arranged on one sides, facing the push plate (42), of the adjusting nuts (56).

9. The macarons printing machine of claim 1, further comprising: the belt conveyor (11) is provided with a plurality of soft pads (111) for placing the macarons.

10. The macarons printing machine of claim 1, further comprising: the sponge block (17) is externally provided with a middle ring (6), the side wall of the middle ring (6) is provided with two first support plates (61) which are symmetrically distributed, two first support plates (61) are provided with adjusting columns (63) in a penetrating mode, the adjusting columns (63) are connected with limiting nuts (64) located below the first support plates (61) in a threaded mode, the side wall of the liquid storage box (16) is provided with second support plates (62) corresponding to the two first support plates (61), and the lower ends of the adjusting columns (63) are connected with the second support plates (62).

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