A step-by-step spoon feeding device

Abstract

The present invention discloses a step-by-step spoon feeding device, which includes a base and an aligning component, a cutting component, and a spoon pushing component provided on the base. The aligning component includes a rotating wheel, a rotating wheel driving motor for driving the rotating wheel to rotate, and a guard plate provided on the circumferential outer side of the rotating wheel. The rotating wheel is circumferentially provided with mold cavities. The cutting component includes a cutting knife and a cutting knife driver for driving the cutting knife to act. The spoon pushing component includes a spoon pushing driving motor, a main rotating shaft, a transmission component, a pushing plate, and a pushing plate guide rail mechanism. The spoon pushing driving motor drives the main rotating shaft to rotate, and the main rotating shaft drives the pushing plate to reciprocate along the pushing plate guide rail mechanism through the transmission component. The present invention pushes the bagged spoons located in the mold cavities outwards through the pushing plate, avoiding the situation that the spoons are stuck in the rotating wheel.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging equipment, and particularly relates to a step-by-step spoon feeding device.

Background Art

[0002] In common cup-packed dairy products, especially in medium and high-grade yogurt products, a spoon for scooping yogurt is given away with the cup, and the spoon is packaged in a transparent plastic bag. In yogurt products, the spoon is located between the cup body and the lid. The spoon is accommodated through the concave structure of the lid, and then combined into the whole product by the way of buckling the lid on the cup body. The spoon in bag form presents a row-connected structure during the supply stage, that is, the external plastic bags are in a connected state, just like a long rope.

[0003] The spoon supply process is completed by a spoon feeding device, which is provided with a runner, a cutter, a guard plate, etc. The guard plate surrounds the runner at a small angle and is located on one side of the runner. The cutter is placed in the area with the guard plate in a linear reciprocating motion mode. The runner is provided with a cavity corresponding to the spoon. The row-connected packaged spoons are wound around the runner and located between the runner and the guard plate. Every time the runner rotates by an angle, the cutter extends into the runner, and the row-connected packaged spoons are cut one by one to form independent bagged spoons. At this time, the bagged spoons are embedded in the cavities of the runner. The bagged spoons rotate with the runner until they are displaced to the bottom of the runner and fall off the runner under their own gravity, realizing the spoon dropping by relying on its own weight.

[0004] Since the cavity of the runner does not exactly correspond to the overall contour of the bagged spoon, the plastic bag will deform in the cavity, and thus the friction between the plastic bag and the runner is relatively large. In the actual production process, the spoon may get stuck in the runner due to the plastic bag being tightened in the cavity. Therefore, there are technical defects in achieving the spoon feeding purpose only by dropping the spoon by its own weight in the prior art.

Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a step-by-step spoon feeding device to avoid the situation that the spoon gets stuck in the runner.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: A step-by-step spoon feeding device includes a base and an alignment component, a cutting component, and a spoon pushing component provided on the base. The alignment component includes a rotating wheel, a rotating wheel drive motor for driving the rotation of the rotating wheel, and a guard plate provided on the outer circumference of the rotating wheel. The rotating wheel is circumferentially provided with mold cavities. The cutting component includes a cutter and a cutter driver for driving the cutter to act; the spoon pushing component includes a spoon pushing drive motor, a main rotating shaft, a transmission component, a pushing plate, and a pushing plate guide rail mechanism. The spoon pushing drive motor drives the main rotating shaft to rotate, and the main rotating shaft drives the pushing plate to reciprocate along the pushing plate guide rail mechanism through the transmission component. After the cutter cuts off the spoon and the spoon rotates to the spoon pushing position, the pushing plate pushes the spoon out of the mold cavity.

[0007] Preferably, it further includes a limiting plate provided below the bottom of the rotating wheel corresponding to the spoon pushing position. The limiting plate is connected with a transmission plate. The transmission plate is hinged and installed and connected with the transmission component. When the pushing plate makes a spoon pushing action, the limiting plate moves away from the pushing plate direction, so that the spoon pushed out by the pushing plate falls from below the bottom of the rotating wheel.

[0008] Preferably, the transmission component includes a transmission shaft, a transmission rod I, and a transmission rod II. The main rotating shaft is rotatably supported on the base. The main rotating shaft is provided with an eccentric part. The center line of the transmission shaft is parallel to the center line of the main rotating shaft and is fixed to the eccentric part. One end of the transmission rod I and one end of the transmission rod II are hinged to the transmission shaft. The other end of the transmission rod I is hinged to the pushing plate, and the other end of the transmission rod II is hinged to the transmission plate.

[0009] Preferably, the pushing plate guide rail mechanism includes a linear slide rail and a guide sleeve slidably nested outside the linear slide rail. The linear slide rail is fixed on the base, and the pushing plate is connected with the guide sleeve.

[0010] Preferably, the rotating wheel is circumferentially provided with an annular groove for accommodating the movement of the pushing plate, and the annular groove penetrates through the middle part of the mold cavity.

[0011] Preferably, the head of the pushing plate is provided with a pushing head extending into the annular groove at the bottom of the rotating wheel.

[0012] Preferably, the cutter includes a cutter bar and a blade installed at the head end of the cutter bar. The cutter driver includes a cutter drive motor, an eccentric shaft, a connecting rod, a cutter bar drive rod, and a cutter bar guide rail. The cutter bar is connected with the cutter bar guide rail. The tail end of the cutter bar is connected with the head end of the cutter bar drive rod. The cutter drive motor drives the eccentric shaft to rotate. The eccentric part of the eccentric shaft is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the tail end of the cutter bar drive rod.

[0013] Preferably, the cutting member further includes a pressing plate, which is hinged to the base. A roller is provided on the cutter bar. The pressing plate is provided with an inclined surface acting on the roller on the front side of the hinge point, and a return spring is connected to the pressing plate on the rear side of the hinge point. Before the cutter moves towards the runner, the pressing plate is connected to the edge of the guard plate. When the cutter moves towards the runner, the pressing plate is driven to rotate and separated from the guard plate through the roller, so as to form a cutting gap through which the cutter can pass between the guard plate and the pressing plate. When the cutter moves away from the runner, under the action of the return spring, the pressing plate is reconnected to the guard plate.

[0014] Preferably, the edges of the guard plate and the pressing plate are provided with engaging teeth that engage with each other.

[0015] Preferably, the pusher spoon drive motor and the cutter drive motor are the same drive motor. The drive motor is connected with a synchronous belt. The main shaft and the eccentric shaft are both connected with synchronous belt pulleys, and the synchronous belt pulleys are connected with the synchronous belt.

[0016] With the above technical solution of the present invention, the row-structured spoons packaged in plastic bags bypass the guide wheel provided on the base and then enter the conveying area between the guard plate and the runner. When the foremost spoon (the spoon packaged in a plastic bag, hereinafter simply referred to as a spoon) just passes through the cutting area, the runner stops rotating, and the blade extends into the cutting area to cut the connecting position of the spoons. Thereafter, a single spoon is inserted into a mold cavity, and so on, continuously cutting and conveying one by one. At the same time, the limiting plate and the pushing plate move synchronously. The limiting plate moves away from the bottom area of the runner, so that the spoon in the mold cavity at the bottom position of the runner can be pushed out, and the pushing plate pushes the spoon located in the mold cavity outwards, thus achieving the purpose of actively pushing out the spoons. Therefore, the situation where the spoons are stuck in the runner can be avoided.

[0017] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Description of the Drawings

[0018] The following further describes the invention with reference to the drawings:

[0019] Figure 1 is a schematic structural diagram of a step-by-step spoon feeding device of the present invention Figure 1 ;

[0020] Figure 2 is a schematic structural diagram of a step-by-step spoon feeding device of the present invention Figure 2 ;

[0021] Figure 3 is a schematic structural diagram of the cooperation between the pusher spoon component and the runner Figure 1 ;

[0022] Figure 4 is a schematic structural diagram of the cooperation between the pusher spoon component and the runner Figure 2 ;

[0023] Figure 5 It is a schematic structural diagram of the spoon pushing component;

[0024] Figure 6 It is a schematic structural diagram of the cooperation between the cutting component and the runner;

[0025] Figure 7 It is a partial structural schematic diagram of the cutting component;

[0026] Figure 8 It is a structural schematic diagram of the runner;

[0027] Reference numerals: base 1, bracket 11, connecting rod 12, guard plate fixing seat 13, guide rail fixing seat 14;

[0028] Alignment component 2, runner 21, mold cavity 211, fixed knife groove 212, annular groove 213, guide wheel 22, guard plate 23, runner drive motor 24;

[0029] Cutting component 3, eccentric shaft 31, connecting rod 32, kidney-shaped hole 321, knife rod drive rod 33, limit sleeve 331, knife rod guide rail 34, knife rod 35, blade 351, roller 352, pressing plate 36, pressing head 361, inclined plane 362, return spring 37, cutter drive motor 38, synchronous belt 39;

[0030] Spoon pushing component 4, main rotating shaft 41, transmission shaft 42, transmission rod I 43, transmission rod II 44, push plate 45, push head 451, straight part 452, inclined part 453, push plate guide rail mechanism 46, linear slide rail 461, guide sleeve 462, first connecting block 463, second connecting block 464, transmission plate 47, limit plate 48.

Detailed implementation manners

[0031] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0032] Those skilled in the art can understand that, without conflict, the features in the following embodiments and implementation manners can be combined with each other.

[0033] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. For example, terms indicating orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the invention.

[0034] In this invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this invention can be understood according to specific circumstances.

[0035] In this invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0036] Embodiment 1

[0037] Refer to Figures 1 to 8 As shown, a step-by-step spoon feeding device includes a base 1 and an alignment component 2, a cutting component 3, and a spoon pushing component 4 provided on the base 1.

[0038] Among them, the alignment component 2 includes a runner 21, a runner drive motor 24 for driving the runner 21 to rotate, and a guard plate 23 provided on the outer circumference of the runner. The runner drive motor 24 is installed on one side of the back of the base and can directly drive the runner to rotate, or can also drive the runner to rotate through an intermediate transmission component. A total of two guard plates are provided, and the two guard plates are separated from each other. The inner side of the guard plate is provided with an arc surface structure, the arc surface faces the runner, and a conveying area is formed by separating the arc surface from the runner. A cutting area is formed between the two guard plates, which is the movement range of the blade on the cutting component. Therefore, the width of the cutting area should be greater than the thickness of the blade. It can be understood that the meaning of the two guard plates here refers to two independent guard plate covering areas formed by separating in the circumferential direction of the runner 21 with the cutting area in the middle.

[0039] In addition, a guide wheel 22 is provided along the continuous material conveying path for guiding the continuous material conveying and entering the conveying area between the runner and the guard plate. A bracket 11 is provided on the side of the runner opposite to the base. The bracket 11 is connected to the base 1 through a connecting rod 12, and the runner shaft is rotatably supported on the base and the bracket. A guard plate fixing seat 13 is provided on the base 1 for fixing the guard plate.

[0040] As Figure 8 shown, the runner 21 is circumferentially provided with mold cavities 211 at equal intervals. When the continuous material of plastic bags with spoons enters the conveying area between the guard plate and the runner, under the extrusion between the guard plate and the runner, the plastic bags with spoons will be embedded in the mold cavities. And a fixed knife groove 212 is provided between two adjacent mold cavities. When the blade 351 of the cutting component is inserted into the fixed knife groove 212, the connecting part between two spoons is cut off to form independent bagged spoons, hereinafter also simply referred to as spoons.

[0041] As Figure 6 and Figure 7 shown, the cutting component 3 includes a cutting knife and a cutting knife driver for driving the cutting knife to act. The cutting knife includes a knife rod 35 and a blade 351 installed at the head end of the knife rod.

[0042] In this embodiment, the cutting knife driver includes a cutting knife driving motor 38, an eccentric shaft 31, a connecting rod 32, a knife rod driving rod 33, and a knife rod guide rail 34. The knife rod 35 is connected to the knife rod guide rail 34, and the tail end of the knife rod is connected to the head end of the knife rod driving rod. The cutting knife driving motor 38 drives the eccentric shaft 31 to rotate. The eccentric part of the eccentric shaft is hinged to one end of the connecting rod 33, and the other end of the connecting rod is hinged to the tail end of the knife rod driving rod 33. A guide rail fixing seat 14 is provided on the base 1 for fixing the knife rod guide rail 34. Therefore, driven by the cutting knife driving motor 38, the eccentric shaft 31, the connecting rod 32, and the knife rod driving rod 33 are sequentially linked, so that the cutting knife moves linearly back and forth along the knife rod guide rail 34. When the blade 351 moves towards the cutting area and is inserted into the fixed knife groove 212, the connecting part between two plastic bags is cut off.

[0043] It can be understood that the cutting component can have many other alternative structures. For example, a separating device described in the patent with the publication number CN107000875B and the patent name of Method for Operating a Device for Applying a Drinking Straw to a Packaging Container and a Device Operated by this Method, which was published on June 23, 2016, can be adopted; or a structure composed of a cutting cylinder and a cutting knife described in the patent with the publication number CN203318802U and the patent name of A Continuous Packaging Bag Sub-packaging Device, which was published on December 4, 2013, can be adopted.

[0044] In order to prevent the plastic bag from being tightened in the mold cavity and the spoon from getting stuck in the runner, a spoon pushing component 4 is provided. Figure 6Taking the shown as an example, if the cutting component 3 is located on the left side of the runner, the spoon pushing component 4 is located on the right side of the runner. When the runner rotates clockwise, after the cutter of the cutting component 3 cuts off the connecting part between the two plastic bags, the spoon continues to be conveyed clockwise in the conveying area between the guard plate and the runner until it is conveyed directly below the runner, and then the spoon pushing component 4 pushes the spoon out of the runner cavity.

[0045] As Figures 3 to 4 Shown in the figure, the spoon pushing component 4 includes a spoon pushing drive motor, a main rotating shaft 41, a transmission assembly, a push plate 45 and a push plate guide mechanism 46. The spoon pushing drive motor drives the main rotating shaft 41 to rotate. The main rotating shaft 41 drives the push plate 45 to reciprocate linearly along the push plate guide mechanism 46 through the transmission assembly. When the cutter cuts off the spoon and rotates to the spoon pushing position, the push plate 45 pushes the spoon out of the cavity.

[0046] In order to ensure that the cut-off spoon just falls when it follows the runner to rotate to the bottom position, a limit plate 48 is provided below the bottom of the runner. The limit plate 48 is connected with a transmission plate 47, and the transmission plate 47 is hinged and connected with the transmission assembly.

[0047] Wherein, the transmission assembly includes a transmission shaft 42, a transmission rod I 43 and a transmission rod II 44. The main rotating shaft 41 is rotationally supported on the base through bearings. The main rotating shaft is provided with an eccentric part. The center line of the transmission shaft is parallel to the center line of the main rotating shaft and is fixed to the eccentric part. One end of the transmission rod I and one end of the transmission rod II are hinged to the transmission shaft 42. The other end of the transmission rod I 43 is hinged to the push plate, and the other end of the transmission rod II 44 is hinged to the transmission plate 47.

[0048] The transmission plate 47 is installed on the bracket 11 through a pin shaft, so it can swing on the bracket. Since the limit plate 48 is axially parallel to the runner and the transmission plate 47 is axially perpendicular to the runner, the limit plate 48 and the transmission plate 47 are also in a perpendicular positional relationship. And the transmission plate 47 is generally L-shaped, and the connecting part of the two side edges is connected with the pin shaft. One of the side edges is connected to the limit plate, and the other side edge is hinged to the transmission rod II. In the actual production process, the limit plate 48 and the transmission plate 47 can be an integral structure or a split structure. After the transmission plate 47 swings, it can drive the limit plate 48 to move. The movement range of the limit plate includes covering the bottom of the runner to cover the cavity and moving towards the area where the guard plate is located (away from the position where the push plate is located). When the push plate 45 makes a spoon pushing action, the limit plate 48 moves towards the area where the guard plate 23 is located, so that the spoon pushed out by the push plate falls from below the bottom of the runner.

[0049] As Figure 8 Shown in the figure, the runner 21 is provided with an annular groove 213 for accommodating the movement of the push plate along the circumferential direction. The annular groove 213 penetrates through the middle part of the cavity, so that the push plate can act on the spoon in the cavity.

[0050] AsFigure 5 As shown, the push plate 45 includes a straight portion 452 fixed parallel to the guide sleeve, and the head of the push plate is provided with a push head 451 extending into the annular groove at the bottom of the rotating wheel. An inclined portion 453 is provided between the straight portion 452 and the push head 451, and the push head 451 can extend into the annular groove 213 at the bottom of the rotating wheel through the inclined portion.

[0051] Among them, the push plate guide rail mechanism 46 includes a linear slide rail 461 and a guide sleeve 462 slidably nested outside the linear slide rail, the guide sleeve 462 is fixed on the base 1, and a first connecting block 463 is fixed side by side on the outside of the guide sleeve, the straight portion 452 is fixed to the side of the first connecting block, and a second connecting block 464 is fixed on the upper side of the first connecting block 463. The second connecting block 464 is L-shaped, and one side is connected to the transmission rod Ⅰ43.

[0052] In the initial state, the blade of the cutting component is away from the rotating wheel, and the limit plate is located directly below the rotating wheel. The spoons packed in a row bypass the guide wheel set on the base, and then enter the conveying area between the guard plate and the rotating wheel. When the head of the spoons packed in a row just passes through the cutting area, the rotating wheel stops rotating, and the blade extends into the cutting area to cut off the spoons packed in a row. After that, a single bagged spoon is embedded in a mold cavity, and the cutting and conveying are carried out continuously one by one. At the same time, a spoon has entered the bottom position of the rotating wheel, and the limit plate moves synchronously with the push plate. The limit plate is away from the bottom area of ​​the rotating wheel and no longer covers the mold cavity. The push plate pushes the spoon in the mold cavity outward, thus completing the purpose of actively pushing out the spoon and avoiding the situation where the spoon is stuck in the rotating wheel.

[0053] Furthermore, the tail end of the connecting rod 32 is provided with a waist-shaped hole 321, one end of the knife bar driving rod 33 is matched with the waist-shaped hole 321, and one end of the knife bar driving rod 33 is covered with a limit sleeve 331 matched with the waist-shaped hole 321, and the two sides of the waist-shaped hole are limited. In addition, the knife bar driving rod 33 is connected to a tension spring, which generates a pulling force toward the cutting area on the knife bar driving rod, so that if the cutter encounters material stacking or foreign matter during the cutting process, the cutter will return to its original position under the tension of the tension spring after retreating.

[0054] Embodiment 2

[0055] The thickness of the blade is much greater than the wall thickness of the packaging bag. Therefore, when the blade cuts through the row of materials, the edge of the packaging bag will curl up. When the blade leaves the area between the two guard plates and enters the initial state, the curled part will be dragged toward the area between the two guard plates. Once the curled part extends into the area between the two guard plates, the row of materials will inevitably leave the conveying area during the subsequent conveying process. This will eventually lead to interruption of the supply of row materials, hindered production progress, and reduced production efficiency. In order to solve this problem, Figure 6As shown, the cutting component further includes a pressing plate 36. The head end of the pressing plate is provided with a pressing head 361. The cross-section of the pressing head is approximately a right-angled triangle structure. The pressing plate 36 is hinged to the base. A roller 352 is provided on the cutter bar 35. The pressing plate 36 is provided with an inclined surface 362 acting on the roller 352 on the front side of the hinge point. A return spring 37 is connected to the pressing plate 36 on the rear side of the hinge point. The edge of the side where the guard plate is in contact with the pressing plate is provided with an arc portion. The head end of the pressing head is relatively thin and can enter the narrow space inside the arc portion, so that the pressing plate is connected to the edge of the guard plate. Before the cutter moves towards the runner, the pressing plate is connected to the edge of the guard plate. When the cutter moves towards the runner, the pressing plate is driven to rotate and separated from the guard plate through the roller, so as to form a cutting gap through which the cutter can pass between the guard plate and the pressing plate. When the cutter moves away from the runner, under the action of the return spring, the pressing plate is reconnected to the guard plate. Moreover, the edges of the guard plate and the pressing plate are provided with engaging teeth that engage with each other, so that the connection between the edge of the guard plate and the edge of the pressing plate is continuous. In this way, after the cutter cuts off the packaging bag, the head end edge of the subsequent continuous packaging bags is pressed by the pressing plate. Even if the edge of the packaging bag curls, the curled part will not extend into the area between the two guard plates.

[0056] In this embodiment, the pusher spoon driving motor and the cutter driving motor are the same driving motor, that is, both the cutting component 3 and the pusher spoon component 4 are driven by the cutter driving motor 38. The cutter driving motor 38 is connected with a synchronous belt 39. The main rotating shaft 41 and the eccentric shaft 31 are both connected with synchronous belt wheels, and the synchronous belt wheels are connected with the synchronous belt 39. Sharing the driving motor in this way can reduce costs. Of course, it can be understood that the pusher spoon driving motor and the cutter driving motor can also be separately provided.

[0057] It can be understood that the above-mentioned step-by-step spoon feeding device is only illustrated by taking a spoon as an example, and the spoon can also be other items such as a straw.

[0058] As described above, it is only the specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A step-by-step spoon feeding device, characterized in that, it includes a base and an aligning component, a cutting component, and a spoon pushing component provided on the base. The aligning component includes a runner, a runner driving motor for driving the runner to rotate, and a guard plate provided on the outer circumference of the runner. The runner is circumferentially provided with cavity molds evenly. The cutting component includes a cutter and a cutter driver for driving the cutter to act; the spoon pushing component includes a spoon pushing driving motor, a main rotating shaft, a transmission component, a pushing plate, and a pushing plate guide rail mechanism. The spoon pushing driving motor drives the main rotating shaft to rotate. The main rotating shaft drives the pushing plate to reciprocate along the pushing plate guide rail mechanism through the transmission component. After the cutter cuts off the spoon and the spoon rotates to the spoon pushing position, the pushing plate pushes the spoon out of the cavity mold. It also includes a limiting plate provided below the bottom of the runner corresponding to the spoon pushing position. The limiting plate is connected with a transmission plate. The transmission plate is hinged and installed and connected with the transmission component. When the pushing plate makes a spoon pushing action, the limiting plate moves away from the pushing plate direction, so that the spoon pushed out by the pushing plate falls from below the bottom of the runner. The transmission component includes a transmission shaft, a transmission rod I, and a transmission rod II. The main rotating shaft is rotatably supported on the base. The main rotating shaft is provided with an eccentric part. The center line of the transmission shaft is parallel to the center line of the main rotating shaft and is fixed to the eccentric part. One end of the transmission rod I and one end of the transmission rod II are hinged to the transmission shaft. The other end of the transmission rod I is hinged to the pushing plate. The other end of the transmission rod II is hinged to the transmission plate. The runner is circumferentially provided with an annular groove for accommodating the movement of the pushing plate. The annular groove penetrates through the middle part of the cavity mold. The head of the pushing plate is provided with a pushing head extending into the annular groove at the bottom of the runner. The cutter includes a cutter rod and a blade installed at the head end of the cutter rod. The cutter driver includes a cutter driving motor, an eccentric shaft, a connecting rod, a cutter rod driving rod, and a cutter rod guide rail. The cutter rod is connected with the cutter rod guide rail. The tail end of the cutter rod is connected with the head end of the cutter rod driving rod. The cutter driving motor drives the eccentric shaft to rotate. The eccentric part of the eccentric shaft is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the tail end of the cutter rod driving rod. The cutting component further includes a pressing plate. The pressing plate is hinged to the base. The cutter rod is provided with a roller. The pressing plate is provided with an inclined surface acting on the roller on the front side of the hinge point. The pressing plate is connected with a return spring on the rear side of the hinge point. Before the cutter moves towards the runner, the pressing plate is connected with the edge of the guard plate. When the cutter moves towards the runner, the pressing plate is driven to rotate through the roller and separated from the guard plate, so that a cutting gap through which the cutter can pass is formed between the guard plate and the pressing plate. When the cutter moves away from the runner direction, under the action of the return spring, the pressing plate is reconnected with the guard plate. The spoon pushing driving motor and the cutter driving motor are the same driving motor. The driving motor is connected with a synchronous belt. The main rotating shaft and the eccentric shaft are both connected with synchronous belt wheels. The synchronous belt wheels are connected with the synchronous belt.

2. A step-by-step spoon feeding device according to claim 1, characterized in that, the pushing plate guide rail mechanism includes a linear slide rail and a guide sleeve slidably nested outside the linear slide rail. The linear slide rail is fixed on the base. The pushing plate is connected with the guide sleeve.

3. A step-by-step spoon feeding device according to claim 1, characterized in that, The edges of the guard plate and the pressing plate are provided with engaging teeth that engage with each other.

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