A mold mechanism and its manual-like automatic stuffing machine

Abstract

The present invention provides a mold mechanism, characterized in that at least one set of lifting molds and a skin-joining plate that is lifted and lowered by a lifting guide rod are mounted on a fixed plate. The skin-joining plate is provided with a cutting groove, a negative pressure suction hole, a dough adjustment block, and an avoidance groove for lifting the lifting mold. The skin-joining plate is also connected to a lifting connecting rod, a lifting guide shaft, and a roller. The roller on the lifting guide shaft is placed on the track of the circular conveyor device of the manual-like automatic stuffing machine. The change in the track height drives the skin-joining plate on the lifting connecting rod to complete the lifting action. The present invention mainly uses the design of the mold mechanism to complete the dough receiving, filling receiving, pre-forming support, and edge forming in the process of forming foods that imitate manual stuffing, so as to achieve the receiving of doughs of different sizes and shapes, and at the same time, cooperate with the negative pressure suction hole to improve the stability of the stuffed food during the conveying process.

Description

Technical Field

[0001] The present invention relates to the field of food processing technology, and more specifically, to a mold mechanism that, depending on the workstations to which it is applied, is used to complete dough receiving, filling receiving, pre-forming support, and edge forming in the process of forming food imitating hand-made stuffing, as well as an automatic hand-made stuffing machine using the mold mechanism. Background Art

[0002] With the development of mechanization, hand-stuffed foods are gradually disappearing from the market, replaced by machines. However, the appearance, filling volume, and the fit between the dough and the filling of hand-stuffed foods are always beyond the reach of machine-made products. This is also the focus of many R&D personnel. Common hand-stuffed foods include dumplings and steamed buns.

[0003] Taking dumpling-making machines as an example, the mold mechanism of most current automatic dumpling-making machines is a simple, straight-cylinder structure. This supports the dumpling wrapper after filling, and then cooperates with the forming mechanism to extrude the finished dumpling. The wrapper's stability and the edges and corners of the dumpling are not particularly important. This stability has a significant impact on subsequent filling processes, directly affecting the defective rate of the finished product, which manifests primarily in poor appearance and leaking filling. The extrusion design of the edges and corners further affects leakage and appearance.

[0004] Therefore, it is necessary to design a mold mechanism and a stuffing machine that meet the manual standards and even imitate the manual stuffing food, so as to solve the technical problems existing in the current stuffing food. Summary of the Invention

[0005] In response to the aforementioned technical problems in the prior art, such as the poor stability of the mold mechanism in receiving dough and the tendency of filling to leak from the corners of stuffed foods, a mold mechanism and an automatic hand-made stuffing machine are provided. The present invention primarily designs the mold mechanism in detail, providing a cutting groove, a negative pressure suction hole, and a dough adjustment block on the dough receiving plate. By replacing the dough adjustment block with different sizes, dough of different sizes and shapes can be controlled. Furthermore, the negative pressure suction hole can be used to improve the stability of stuffed foods during transport. Furthermore, a shrinking plate is added to the lifting mold to complete the edge forming process of the hand-made stuffed food, thereby preventing filling from leaking from the corners and improving the aesthetics of the finished product.

[0006] The technical means adopted in the present invention are as follows:

[0007] A mold mechanism, characterized in that at least one group of supporting molds and a skin-connecting plate that can be lifted up and down by a lifting guide rod are installed on a fixed plate, the skin-connecting plate being provided with a cutting groove, a negative pressure suction hole, a dough adjustment block and an avoidance groove for lifting the supporting mold; the skin-connecting plate is also connected to a lifting connecting rod, a lifting guide shaft and a roller, the roller on the lifting guide shaft being placed on the track of a ring-shaped conveying device of a manual-like automatic stuffing machine, and the change in the track height drives the skin-connecting plate on the lifting connecting rod to complete the lifting action.

[0008] Furthermore, at least two negative pressure suction holes are provided and symmetrically or evenly distributed on the skin connection plate.

[0009] Furthermore, the lifting mold includes a support frame with an accommodating space fixed on the base, a lifting block arranged in the accommodating space and a contraction plate arranged on both sides of the lifting block. The lifting block is controlled to move up and down by the lifting connecting plate II; the contraction angle of the contraction plate is controlled by the lifting connecting plate I.

[0010] Furthermore, the shrinkage piece includes a rotating arm connected to the lifting block, a shrinkage arm cooperating with the rotating arm to form a shrinkage extrusion space, and an extrusion part arranged at the end of the shrinkage arm for extruding the outer corners on both sides of the stuffed food inward.

[0011] Furthermore, the surface of the extrusion portion has a curvature that matches the outer surface of the stuffed food.

[0012] Furthermore, the included angle between the extrusion portion and the contraction arm is 90-120°, forming a T-shape or an L-shape.

[0013] Furthermore, the shrinkage angle of the shrinkage piece is 10 to 60 degrees.

[0014] The present invention also discloses an automatic hand-made stuffing encrusting machine, which is characterized in that the above-mentioned mold mechanism is adopted, according to different working stations of its application, to complete the dough receiving, stuffing receiving, pre-forming support and edge forming in the process of imitating hand-made stuffing food forming.

[0015] Furthermore, the manual-like automatic stuffing machine also includes a conveying mechanism and a forming mechanism, wherein the conveying mechanism is an annular conveying device with 4 or more workstations, which is used to convey the mold mechanism installed on the annular conveying device. When the mold mechanism is conveyed to different workstations, the setting action of its workstation is completed, and the batch production operation is completed in a reciprocating cycle.

[0016] Furthermore, the forming mechanism includes: a double-layer independently driven rotary extrusion block group arranged on the back plate, wherein the double-layer structure is an inner layer rotary extrusion block group and an outer layer rotary extrusion block group arranged in sequence, the inner layer rotary extrusion block group is driven by the inner layer driving mechanism to rotate and extrude to control the kneading of the dough of the stuffed food, and completes the local kneading and edge sealing of the dough, the pre-forming of the stuffing bag and the pre-forming of the clip marks on the surface of the dough at one time; the outer layer rotary extrusion block group is driven by the outer layer driving mechanism to rotate and extrude to control the final forming of the stuffing bag of the stuffed food; during extrusion forming, the inner layer rotary extrusion block group is first driven to pre-form the stuffing food, and then the outer layer rotary extrusion block group is driven to complete the final forming of the pre-formed stuffing bag and the clip marks on the dough surface and remove excess air in the stuffing bag.

[0017] The present invention has the following advantages:

[0018] The present invention designs the mold mechanism in detail, and sets a cutting groove, a negative pressure suction hole and a dough adjustment block on the dough connecting plate. Doughs of different sizes and shapes can be controlled by replacing the dough adjustment blocks of different sizes. At the same time, the negative pressure suction hole can prevent the dough from slipping due to centrifugal force during the transmission process.

[0019] The present invention designs the mold mechanism in detail and sets a shrinkage piece in the lifting mold. The shrinkage piece is used to trim and shape the two corners of the stuffed food, which can effectively prevent the stuffing from leaking from the corners and improve the appearance of the finished product.

[0020] The encrusting machine with a mold mechanism provided by the present invention can also be operated in conjunction with a dual-layer independently driven forming mechanism to shape stuffed foods through a rotating extrusion block group. The inner rotating extrusion block group controls the kneading of the dough for stuffed foods, which is particularly suitable for stuffed foods with a narrow edge width at the dough kneading point. The outer rotating extrusion block group controls the formation of the filling pocket of the stuffed food. Because it is independently driven, the extrusion range can be precisely controlled, adapting to dough with different water addition rates and different types of fillings.

[0021] Furthermore, during the forming process, the inner rotating extrusion block group is responsible for locally kneading and sealing the dough skin, specifically leaving the corners of the stuffed food unkneaded. This serves as a channel for venting air trapped in the dough skin and filling. Furthermore, during the pre-forming of the filling sac, rotary extrusion is used to fully combine the dough skin and filling, expelling any remaining air from the corners and creating a fuller, rounder shape. Ultimately, the pre-forming of the pinch marks on the surface of the dough skin for the stuffed food is completed. The outer rotating extrusion block group, on the other hand, primarily adjusts and completes the final shaping of the dough skin for the stuffed food through outer rotating extrusion, based on the characteristics of the dough skin, namely its degree of softness or hardness. The independent drive structure also facilitates adjustment of the force and duration of the extrusion rotation. For example, if the dough skin is hard, the extrusion rotation range can be appropriately reduced to avoid damage. If the dough skin is soft, the pinch marks are prone to deformation, allowing for extended extrusion time.

[0022] When forming stuffed food, the stuffing machine provided by the present invention can first drive the forming mechanism to form the stuffed food, and then drive the shrinkage piece of the mold mechanism to trim and shape the edges and corners; it can also drive both at the same time to form the stuffed food at one time.

[0023] The invention has high stability, and the shape of the stuffed food after forming is extremely similar to the shape of hand-wrapped food, which greatly saves labor costs and fundamentally solves the problems of stuffing leakage, low finished product rate, incomplete stuffing bag, poor eating taste, etc. of stuffed food.

[0024] Based on the above reasons, the present invention can be widely promoted in the field of stuffed foods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 It is a structural schematic diagram of the mold mechanism of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the lifting mold of the present invention.

[0028] Figure 3 It is a schematic diagram of the driving structure of the lifting mold of the present invention.

[0029] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0030] Figure 5 It is a structural schematic diagram of the double-layer rotary extrusion forming mechanism of the present invention.

[0031] Figure 6 It is a structural schematic diagram of the extrusion clamp in the double-layer rotary extrusion forming mechanism of the present invention.

[0032] Figure 7 This is a side view of the inner layer rotating extrusion clamping block group of the present invention. As can be seen from the figure, the surface of the inner layer rotating extrusion clamping block group where each clamping block meets the dough has a protrusion shaped like the ball of a finger.

[0033] Figure 8 This is a schematic diagram of the double-layer rotary extrusion forming mechanism of the present invention in a relaxed state, with the center lines of the projections of the spacing space I between the blocks of the inner rotary extrusion block group and the spacing space II between the blocks of the outer rotary extrusion block group on the horizontal plane forming a certain angle with the pivot extrusion point as the endpoint.

[0034] Figure 9 This is a schematic diagram showing that the center lines of the orthographic projections of the space I between the clamping blocks of the inner rotary extrusion clamping block group and the space II between the clamping blocks of the outer rotary extrusion clamping block group on the horizontal plane coincide with each other in the extrusion forming state of the double-layer rotary extrusion forming mechanism of the present invention.

[0035] Figure 10 This is a schematic diagram of the outer layer rotating extrusion clamp group of the present invention, showing a schematic diagram of an air-avoidance hole provided on the outer extrusion clamp II.

[0036] Figure 11 Schematic diagram of the workstation distribution of the manual-like automatic stuffing encrusting machine of the present invention.

[0037] Figure 12 This is a real picture of dumplings made by the manual-like automatic stuffing-making machine of the present invention.

[0038] In the figure: 1. Inner layer rotating extrusion clamp group; 11. Outer layer extrusion clamp I; 111. Outer first extrusion surface I; 112. Outer second extrusion surface I; 12. Rib extrusion clamp I; 121. Rib first extrusion surface I; 122. Rib second extrusion surface I; 123. Rib third extrusion surface I; 124. Groove; 13. Pivot shaft; 2. Outer layer rotating extrusion clamp group; 21. Outer layer extrusion clamp II; 211. Outer first extrusion surface II; 212. Outer second extrusion surface II; 22. Rib extrusion clamp II; 221. Rib first extrusion surface II; 222. Rib second extrusion surface II; 223. Rib third extrusion surface II; 23. Connecting rod; 3. Die mechanism; 31 , fixed plate; 32, lifting mold; 321, support frame; 322, lifting block; 323, shrinking plate; 3231, rotating arm; 3232, shrinking arm; 3233, extrusion part; 324, connecting plate; 325, lifting guide rod for lifting mold; 326, lifting connecting plate I; 327, lifting connecting plate II; 328, first rotating shaft; 329, second rotating shaft; 320, third rotating shaft; 33, skin connecting plate; 331: undercut groove; 332, negative pressure suction hole; 333, dough adjustment block; 334, avoidance groove; 34, lifting guide hole boss; 35, lifting fixed seat; 36, lifting connecting rod; 37, lifting guide shaft; 38, roller; 39, lifting guide rod. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0043] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0046] like Figure 1As shown, a mold mechanism 3 is used to complete the dough receiving, filling receiving, pre-forming support and edge forming in the process of forming imitation hand-made stuffed food. It includes a fixed plate 31, on which at least one set of support molds 32 ( Figure 1 This is a specific embodiment of the present invention, and there are two lifting molds 32 shown) and a skin-connecting plate 33 that is lifted up and down by a lifting guide rod 39. The skin-connecting plate 33 is used to receive the dough cut by the cutter. A lifting guide hole boss 34 is also provided on the fixed plate 31, the purpose of which is to increase the stability of the upper and lower guidance.

[0047] The skin-joining plate 33 is provided with a cutting groove 331, a negative pressure suction hole 332, a dough adjustment block 333 and an avoidance groove 334 for lifting the mold. The negative pressure suction hole 332 is provided with at least two, symmetrically or evenly distributed on the skin-joining plate 324. Figure 1 As shown in FIG, there are four negative pressure suction holes 332 , which are evenly distributed in four directions of the skin connecting plate 33 .

[0048] The cutting groove 331 cooperates with the dough adjustment block 333. By replacing blocks of different sizes, doughs of different sizes and shapes can be controlled. At the same time, the negative pressure suction hole 332 can effectively prevent the dough from slipping due to centrifugal force during the transmission process; the dough connecting plate 33 is also connected to a lifting connecting rod 36, a lifting guide shaft 37 and a roller 38. The roller 38 on the lifting guide shaft 37 is placed on the track of the ring conveying device of the manual automatic stuffing machine. The change in the track height drives the dough connecting plate 33 on the lifting connecting rod 36 to complete the lifting action.

[0049] like Figure 2 As shown, the lifting mold 32 includes a support frame 321 with an accommodating space fixed on a base, a lifting block 322 arranged in the accommodating space and a shrinkage plate 323 arranged on both sides of the lifting block 322. The lifting block 322 is controlled to move up and down by a lifting connecting plate II 327; the shrinkage angle of the shrinkage plate 323 is controlled by a lifting connecting plate I 326.

[0050] When the lifting mold 32 is transferred to the filling injection station, the support frame 321 and the lifting block 322 are mainly used to support the dough with the filling injected and keep the dough in an upright position. Auxiliary blowing devices can be added on the front and back sides of the filling bag on both sides of the lifting mold 32 to solve the problem that the dough is soft and cannot be supported.

[0051] Specifically, if Figure 4As shown, the shrinking piece 323 includes a rotating arm 3231 connected to the lifting block 322, a shrinking arm 3232 that cooperates with the rotating arm 3231 to form a shrinking and extruding space, and an extrusion portion 3233 provided at the end of the shrinking arm 3232 for extruding the outer corners of the two sides of the stuffed food inward. The surface of the extrusion portion 3233 has a curvature that matches the outer surface of the stuffed food, ensuring that the outer skin of the stuffed food is not damaged during the extrusion process. As shown in the figure, the angle between the extrusion portion 3233 and the shrinking arm 3232 is 90 to 120 degrees, that is, it is T-shaped or L-shaped in its side view direction (viewed from right to left in the figure).

[0052] The specific movement process is as follows: the contraction piece 323 cooperates with the lifting block 322 to shrink the corners on both sides of the stuffed food. Specifically, the lifting block 322 is connected to the root connection position of the contraction piece 323 through the first rotating shaft 328, and the middle position of the contraction piece 323 is connected to the connecting plate 324 through the second rotating shaft 329. A third rotating shaft 320 is also provided between the connecting plate 324 and the conveying mold lifting guide rod 325. The up and down lifting of the lifting block 322 is controlled by the lifting connecting plate II 327; the contraction angle of the contraction piece 323 is controlled by the lifting connecting plate I 326. During the rising and falling process, the components connected to each rotating shaft move accordingly to achieve coordinated action of the lifting block 322 and the shrinking piece 323. The shrinking angle of the shrinking piece is 10-60 degrees, and the shrinking angle is adjusted by a cylinder, an electric cylinder and other means. The shrinking angle is determined according to the type and weight of different fillings, thereby completing the edge shaping of the dough of the stuffed food. Preferably, the stuffed food is fan-shaped after shrinkage, and there is no indentation after shrinkage, thereby solving the problems of the stuffing bag of the stuffed food being not full, the transmission stability being poor, and the taste being poor.

[0053] The present invention also discloses an automatic hand-made stuffing encrusting machine, which adopts the above-mentioned mold mechanism 3 and is used to complete the dough receiving, stuffing receiving, pre-forming and edge forming in the process of forming hand-made stuffed food according to its different application stations.

[0054] Furthermore, the manual-like automatic stuffing encrusting machine further comprises a conveying mechanism and a forming mechanism, wherein the conveying mechanism is an annular conveying device having 4 or more stations, for conveying the mold mechanism 3 mounted on the annular conveying device, such as Figure 11The figure shows a specific workstation arrangement of a manual-like automatic stuffing machine, which includes a skin punching station, a stuffing injection station, a pre-forming station, a forming station, and a grabbing station, as well as some reserved stations. Specifically, the skin punching station is used to punch the pressed dough sheet into a fixed-size skin using a cutting device; the stuffing injection station is used to inject the mixed filling into the punched dough sheet; the pre-forming station is used to pre-press the dough sheet that supports the stuffing into shape; the forming station is used to rotate and extrude the pre-formed stuffed food through the forming mechanism again; the grabbing station is used to grab the formed stuffed food and pack it into boxes. When the mold mechanism 3 is transferred to different stations, the set action of its station is completed, and the batch production operation is completed in a reciprocating cycle.

[0055] In addition, the forming devices of the manual-like automatic stuffing machines currently on the market mostly use a horizontal direct one-time mold closing method to achieve the mold closing action. This mold closing method has the problems of incomplete mold closing and low forming degree. When the filling contains a lot of soup, the filling is likely to splash out due to excessive extrusion pressure, or the extrusion pressure is too small or the extrusion stroke is too small, so that a lot of air remains in the filling bag of the rubber belly and is not removed, which is likely to cause the skin to break during subsequent processing; in addition, the taste of the finished product is affected when it is eaten.

[0056] In order to solve the above problems, as a preferred solution of the present invention, the mold mechanism can also be used together with the improved forming mechanism. Specifically, Figure 5 As shown, it includes: a double-layer independently driven rotating extrusion clamping block group set on the back plate, wherein the double-layer structure is an inner layer rotating extrusion clamping block group 1 and an outer layer rotating extrusion clamping block group 2 arranged in sequence. With the stuffed food as the center, the inner layer rotating extrusion clamping block group 1 is the side that fits with its dough, followed by the outer layer rotating extrusion clamping block group 2. The inner and outer layer rotating extrusion clamping block groups are designed to fit in sequence. Figure 1 When viewed from above, i.e. in the direction of orthographic projection, there is an overlapping area between the inner and outer rotating extrusion clamp blocks. Figure 1 Looking from left to right, the inner and outer rotating extrusion clamp blocks are independent of each other and are designed to fit together.

[0057] The inner layer rotary extrusion clamp group 1 drives the rotary extrusion through the inner layer driving mechanism to control the kneading of the dough of the stuffed food, and completes the local kneading and edge sealing of the dough, the pre-forming of the stuffing bag and the pre-forming of the clamping marks on the surface of the dough at one time. It is particularly suitable for stuffed foods with a smaller edge width at the kneading part of the dough. The local kneading and edge sealing is to leave space for the two corners of the dough, which is conducive to the first discharge of excess air.

[0058] The outer layer rotary extrusion clamp group 2 controls the formation of the stuffing bag of the stuffed food by driving the rotary extrusion through the outer layer driving mechanism, and adjusts the outer layer rotary extrusion forming strength according to the soft and hard characteristics of the dough; during extrusion forming, the inner layer rotary extrusion clamp group 1 is first driven to pre-form the stuffing food, and then the outer layer rotary extrusion clamp group 2 is driven to complete the final forming of the pre-formed stuffing bag and the surface clamping marks of the dough and remove the excess air in the stuffing bag, making the stuffing bag fuller and the stuffing in close contact with the dough, solving the problem that the presence of air in the stuffing bag of the stuffed food seriously affects the taste of the food, and adjusting the extrusion tightening range by the driving mechanism so that the stuffing food reaches the best state in terms of appearance and taste.

[0059] In the relaxed state, the center lines of the orthographic projections of the space I between the clamping blocks of the inner layer rotating extrusion clamping block group 1 and the space II between the clamping blocks of the outer layer rotating extrusion clamping block group 2 on the horizontal plane coincide / or the center lines of the inner layer and the outer layer form a certain angle with the pivoting extrusion point as the endpoint. The standard of this design is to ensure the consistency of extrusion. If the center lines of the space between the inner and outer layers coincide, it can be known without a doubt that the extrusion ranges inside and outside are consistent. After the inner layer is extruded, it is further extruded by the outer layer, making the clamping marks more beautiful and clear. Figure 8 As shown, the inner and outer center lines are arranged at a certain angle with the pivoting extrusion point. This design mainly takes into account the different hardness and softness of the dough and the different extrusion shapes of various stuffed foods. The extrusion rotation range can be adjusted within a certain range (i.e., the angle range formed by the center line). Since the inner and outer rotating extrusion clamp groups are driven separately, such as Figure 10 As shown, air holes are provided on the outer layer rotating extrusion clamping block group to independently adjust the outer layer rotation without affecting the inner layer extrusion stroke.

[0060] like Figure 9 As shown, in the extrusion forming state, the center lines of the orthographic projections of the spacing space I between the clamping blocks of the inner layer rotating extrusion clamping block group 1 and the spacing space II between the clamping blocks of the outer layer rotating extrusion clamping block group 2 on the horizontal plane coincide with each other, ensuring that the clamping marks on the filling bag belly and the dough surface are consistent and smoothly connected.

[0061] In addition, the independent driving structure of the present invention is also conducive to adjusting the force and time of extrusion rotation. For example, when the dough is hard, the extrusion rotation range can be appropriately reduced to avoid damage to the dough; if the dough is soft, the clamping mark is easily deformed, and the extrusion time can be extended.

[0062] To further elaborate on the characteristics of the clamping block of the present invention, the inner layer rotating extrusion clamping block group 1 includes an outer extrusion clamping block Ⅰ11 arranged at both ends and at least one (2 in the schematic diagram, and there will be three clamping marks in the end) convex rib extrusion clamping block Ⅰ12 placed therein for cooperating with the outer extrusion clamping block Ⅰ11 for extrusion. The inner layer driving mechanism drives the outer extrusion clamping block Ⅰ11 to drive the inner layer clamping blocks to pivot and extrude to complete the extrusion action, that is, the outer extrusion clamping block Ⅰ11 and the convex rib extrusion clamping block Ⅰ12 rotate relative to each other through the pivot shaft 13 for extrusion; correspondingly, the outer layer rotating extrusion clamping block group 2 includes an outer extrusion clamping block Ⅱ21 arranged at both ends and at least one convex rib extrusion clamping block Ⅱ22 placed therein for cooperating with the outer extrusion clamping block Ⅱ21 for extrusion. The outer layer driving mechanism drives the connecting rod 23 to drive the outer layer clamping blocks of the outer extrusion clamping block Ⅱ21 to pivot and extrude to complete the extrusion action.

[0063] like Figure 6 As shown, the outer extrusion clamp Ⅰ11 has an outer first extrusion surface Ⅰ111 and an outer second extrusion surface Ⅰ112, and the two extrusion surfaces are connected by an arc; the convex rib extrusion clamp Ⅰ12 has a convex rib first extrusion surface Ⅰ121, a convex rib second extrusion surface Ⅰ122 and a convex rib third extrusion surface Ⅰ123, and the extrusion surfaces are connected by an arc; the outer extrusion clamp Ⅱ21 has an outer first extrusion surface Ⅱ211 and an outer second extrusion surface Ⅱ212, and the two extrusion surfaces are connected by an arc; the convex rib extrusion clamp Ⅱ22 has a convex rib first extrusion surface Ⅱ221 , the rib second extrusion surface II 222 and the rib third extrusion surface II 223, each extrusion surface is connected by an arc; in the extrusion forming state, the outer second extrusion surface I 112 and the outer second extrusion surface II 212 are in the same arc surface I and the two extrusion surfaces are smoothly connected; similarly, the rib first extrusion surface I 121 and the rib first extrusion surface II 221 are in the same arc surface II and the two extrusion surfaces are smoothly connected, and the gap between the arc surface I and the arc surface II forms a clip mark on the surface of the stuffing bag and the dough, and the clip mark is a ridge-shaped protrusion (such as Figure 12 shown).

[0064] Further, if Figure 7 As shown, the surfaces of the inner rotating extrusion block set 1 where each block meets the dough have protrusions shaped like the pad of a finger. The front surfaces of the blocks (where they meet the dough) are designed to mimic the pad of a finger to simulate the effect of hand-wrapping; the side surfaces of the blocks (where the extrusion marks are formed) are rounded to create consistent and smooth marks.

[0065] The upper ends of the convex rib extrusion clamp block I12 and the convex rib extrusion clamp block II22 are both provided with a groove 124 that matches the limit rod and is used to control the rotation range of the extrusion blocks during extrusion forming.

[0066] The shaping mechanism is made of an elastic material, wherein the portion in contact with the pinch mark has greater elasticity than the other non-contact portions. The shaping mechanism can be made of rubber. To ensure sufficient strength, the main structure can be made of hard rubber. The portion forming the pinch mark has greater elasticity than the other portions, and can be made of a slightly softer rubber. Other elastic materials can also be used as needed.

[0067] In addition, the shape of the clamp is not strictly limited in the present invention, and its shape can be determined by the type of stuffed food. The rotational extrusion of the clamp is independently driven by respective driving rods, and the extrusion range can be determined according to different stuffed foods. The shape of the clamp mark is completely consistent with the extrusion surface of the clamp block. By changing the shape of the extrusion surface of the clamp block, it can correspond to stuffed foods with different clamp mark shapes.

[0068] The present invention also discloses a manual-like automatic stuffing machine, which uses the above-mentioned double-layer rotary extrusion forming mechanism to form stuffed foods. Figure 7 The figure shows a specific workstation layout of a manual-like automatic stuffing machine, including a punching station, a filling station, a pre-forming station, a forming station, and a grabbing station, as well as some reserved stations. In actual operation, the punching station is used to punch the pressed dough sheet into a fixed-size dough sheet using a cutter device; the filling station is used to inject the mixed filling into the punched dough sheet; the pre-forming station is used to pre-press the dough sheet that supports the filled filling into shape; the forming station is used to rotate and extrude the pre-formed stuffed food through the forming mechanism again; and the grabbing station is used to grab and box the formed stuffed food. This cycle completes batch production.

[0069] The present invention forms stuffed foods using a dual-layer, independently driven, rotating extrusion block assembly mounted on a back plate. The inner rotating extrusion block assembly controls the kneading of the dough for the stuffed food, making it particularly suitable for foods with narrow edges at the kneading point. The outer rotating extrusion block assembly controls the formation of the filling pouch. Because the blocks are independently driven, the extrusion range can be precisely controlled, accommodating dough with varying water addition rates and different filling types.

[0070] During the forming process of the forming mechanism of the present invention, specifically, the inner layer rotary extrusion clamping block group is responsible for the local kneading and sealing of the dough skin, that is, the two corners of the stuffed food are not kneaded, and its purpose is to serve as a channel for the air remaining in the dough skin and the filling to be discharged; in addition, for the pre-forming of the stuffing sac, the dough skin and the filling are fully combined through rotary extrusion, the remaining air is discharged from the two corners, and the shape of the stuffing sac is fuller and rounder; finally, the pre-forming of the clamping mark on the surface of the dough skin of the stuffed food is completed. The outer layer rotary extrusion clamping block group mainly adjusts and completes the final forming of the dough skin of the stuffed food through the outer layer rotary extrusion based on the characteristics of the dough skin, that is, the degree of deformation of the dough skin. The independent drive structure is also conducive to adjusting the force and time of the extrusion rotation. For example, when the dough skin is hard, the extrusion rotation range can be appropriately reduced to avoid damage to the dough skin; if the dough skin is soft, the clamping mark is easy to deform, and the extrusion time can be extended.

[0071] The contact surfaces of the various clamping blocks in the forming mechanism of the present invention are designed differently according to their different functions. The side in contact with the dough, such as the upper surface of each clamping block of the inner layer rotating extrusion clamping block group (in the direction shown in the figure) is provided with a protrusion shaped like the fingertip; furthermore, the extrusion surface of each clamping block used to produce the extrusion mark is provided with a smooth surface connected by an arc, so as to make better use of the effect of consistent and long-lasting shape of the extrusion mark.

[0072] The combined use of the forming mechanism and mold mechanism of the present invention results in a consistent shape of stuffed foods formed. The pinch marks formed on the surface of the dough after rotary extrusion are consistent, similar to those produced by hand-wrapping, and the fillings are uniformly full. By designing a dual-layer independently driven rotary extrusion mechanism within the forming mechanism, the present invention can completely replace the conventional packaging methods for hand-wrapped stuffed foods. The resulting shapes of stuffed foods are highly similar to those produced by hand-wrapping, significantly saving labor costs and fundamentally resolving the issues of insufficient fillings and poor taste in stuffed food pouches.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic stuffing encrusting machine imitating manual work, characterized in that: The manual-like automatic stuffing encrusting machine includes a mold mechanism and a forming mechanism; the mold mechanism includes: at least one set of lifting molds and a skin-joining plate that is lifted up and down by a lifting guide rod mounted on a fixed plate; the skin-joining plate is provided with a cutting groove, a negative pressure suction hole, a dough adjustment block, and an avoidance groove for lifting the supporting mold; the skin-joining plate is further connected to a lifting connecting rod, a lifting guide shaft, and a roller; the roller on the lifting guide shaft is placed on a track of a ring-shaped conveyor device of the manual-like automatic stuffing encrusting machine; changes in the track height drive the skin-joining plate on the lifting connecting rod to complete the lifting action; The mold mechanism is used to complete the dough receiving, filling receiving, pre-forming support and edge forming in the process of forming imitation hand-made stuffed food according to the different working stations it is used for; The forming mechanism comprises: a double-layer rotary extrusion clamping block group with independent drive arranged on the back plate, wherein the double-layer structure comprises an inner rotary extrusion clamping block group and an outer rotary extrusion clamping block group arranged in sequence, the inner rotary extrusion clamping block group is driven by the inner driving mechanism to rotate and extrude to control the kneading of the dough of the stuffed food, thereby completing the local kneading and edge sealing of the dough, the pre-forming of the stuffing bag belly and the pre-forming of the clipping mark on the dough surface at one time; the outer rotary extrusion clamping block group is driven by the outer driving mechanism to rotate and extrude to control the final forming of the stuffing bag belly of the stuffed food; during extrusion forming, the inner rotary extrusion clamping block group is first driven to pre-form the stuffing food, and then the outer rotary extrusion clamping block group is driven to complete the final forming of the pre-formed stuffing bag belly and the clipping mark on the dough surface and remove excess air in the stuffing bag belly; The inner layer rotating extrusion clamp group includes outer extrusion clamps I arranged at both ends and at least one convex rib extrusion clamp I placed therein for cooperating with the outer extrusion clamp I for extrusion. The inner layer driving mechanism drives the outer extrusion clamp I to drive the inner layer clamps to pivot and extrude to complete the extrusion action; correspondingly, the outer layer rotating extrusion clamp group includes outer extrusion clamps II arranged at both ends and at least one convex rib extrusion clamp II placed therein for cooperating with the outer extrusion clamp II for extrusion. The outer layer driving mechanism drives the outer layer clamps of the outer extrusion clamp II to pivot and extrude to complete the extrusion action.

2. The manual-like automatic stuffing encrusting machine according to claim 1, characterized in that: At least two negative pressure suction holes are provided and are symmetrically or evenly distributed on the skin connection plate.

3. The manual-like automatic stuffing encrusting machine according to claim 1, characterized in that: The lifting mold includes a support frame with an accommodating space fixed on a base, a lifting block arranged in the accommodating space, and contraction plates arranged on both sides of the lifting block. The lifting block is controlled to rise and fall by the lifting connecting plate II; the contraction angle of the contraction plate is controlled by the lifting connecting plate I.

4. The manual-like automatic stuffing encrusting machine according to claim 3, characterized in that: The shrinking piece includes a rotating arm connected to the lifting block, a shrinking arm cooperating with the rotating arm to form a shrinking extrusion space, and an extrusion part arranged at the end of the shrinking arm for extruding the outer corners of both sides of the stuffed food inwardly.

5. The manual-like automatic stuffing encrusting machine according to claim 4, characterized in that: The surface of the extrusion portion has a curvature that matches the outer surface of the stuffed food.

6. The manual-like automatic stuffing encrusting machine according to claim 5, characterized in that: The included angle between the extrusion portion and the contraction arm is 90-120 degrees, forming a T-shape or an L-shape.

7. The manual-like automatic stuffing encrusting machine according to claim 3, characterized in that: The shrinkage angle of the shrinkage piece is 10 to 60 degrees.

8. The manual-like automatic stuffing encrusting machine according to claim 1, characterized in that: The manual-like automatic stuffing encrusting machine also includes a conveying mechanism, wherein the conveying mechanism is an annular conveying device with 4 or more workstations, which is used to convey the mold mechanism installed on the annular conveying device. When the mold mechanism is conveyed to different workstations, the setting action of its workstation is completed, and the batch production operation is completed in a reciprocating cycle.

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