Mold assembly and automatic stick inserting machine for stick steamed buns

Abstract

The utility model discloses a mould assembly and a stick steamed bun automatic stick inserting machine, the mould assembly comprises an upper mould, the upper mould is provided with at least one upper forming groove, the upper mould is also provided with an inserting groove, and the inserting groove surrounds the outer side of the upper forming groove; the lower die is provided with at least one lower forming groove, the lower die is further provided with a convex wall protruding outwards, and the convex wall surrounds the outer side of the lower forming groove; when the upper die and the lower die are assembled, the convex wall is inserted into the inserting groove, the bottom of the sharp wall is attached to the inner side of the convex wall, and the convex wall is made of elastic materials. According to the die assembly, a convex wall is arranged on a lower die, and the inner side face of the convex wall is connected with the inner wall of a lower forming groove; when the upper die and the lower die are closed, the bottom of the sharp wall is attached to the inner side face of the convex wall or the inner wall of the lower forming groove. Through the arrangement of the mold, the outer surface of strip-shaped dough at the joint of the upper mold and the lower mold can be smooth, flashes or edges and corners are reduced, and the attractiveness and quality of steamed buns are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing machinery, in particular to a mold assembly and an automatic skewer inserting machine for skewer-shaped steamed buns. Background Art

[0002] When producing skewer-shaped steamed buns, the existing production process is to form the skewer-shaped steamed buns by a skewer-shaped steamed bun machine, and then manually insert the skewer-shaped steamed buns on bamboo skewers (also known as skewer insertion), and steam them in a bamboo skewer-equipped steamer basket or a steaming room. Chinese Patent Publication No. CN216165083U discloses an automatic skewer inserting machine for high-piled steamed buns, which realizes automatic production by an automatic skewer inserting method. It uses a mold with upper and lower mold cavities each having a semi-circular cross-section. In the lower mold, a prepared strip of dough is placed. Then, the upper mold descends and cooperates with the lower mold to fix the strip of dough in the steamed bun mold cavity. Then, the skewer is inserted into the strip of dough from between the openings at one end of the two steamed bun semi-cavities in the upper and lower molds. However, after the upper and lower templates in this document are in contact with each other, the steamed bun will still form flash or ridges at the edge of the steamed bun semi-cavity due to being squeezed during the skewer insertion process, resulting in an uneven surface of the skewer-inserted steamed bun, and seriously affecting the appearance and quality of the skewer-inserted steamed bun. In view of this, how to design a technology to improve the product quality and yield of steamed buns is the technical problem to be solved by the present utility model. Summary of the Utility Model

[0003] The present utility model provides a mold assembly and an automatic skewer inserting machine for skewer-shaped steamed buns, which can achieve a smooth surface of the steamed buns produced by the mold assembly and improve the product quality and yield of the steamed buns.

[0004] To achieve the above object, the present utility model adopts the following technical solutions:

[0005] The present utility model provides a mold assembly, including:

[0006] An upper mold, at least one upper forming groove is provided on the upper mold, and an insertion groove is further provided on the upper mold, and the insertion groove surrounds the outside of the upper forming groove;

[0007] A lower mold, at least one lower forming groove is provided on the lower mold, and an outwardly protruding convex wall is further provided on the lower mold, and the convex wall surrounds the outside of the lower forming groove;

[0008] Wherein, when the upper mold and the lower mold are closed, the convex wall is inserted into the insertion groove and the bottom of the pointed wall abuts against the inner side of the convex wall.

[0009] In one embodiment, the lower mold includes a lower shell and a lower mold core; the lower mold core is arranged on the lower shell, the lower forming groove and the convex wall are arranged on the lower mold core, a lower flanging is formed at the edge of the lower shell, and the lower flanging wraps around the periphery of the lower mold core;

[0010] Wherein, the whole of the lower die core is made of an elastic material, and the lower die core and the convex wall are of an integral structure; alternatively, the whole of the lower die core is made of a rigid material, the lower die core and the convex wall are of a split structure, and the convex wall is arranged on the lower die core.

[0011] In one embodiment, the upper die includes an upper shell and an upper die core. The upper die core is arranged on the upper shell, and an upper forming groove, a plugging groove and a pointed wall are arranged on the upper die core. An upper flanging is formed at the edge of the upper shell, and the upper flanging wraps around the periphery of the upper die core.

[0012] In one embodiment, a pointed wall is formed between the plugging groove and the upper forming groove; the inner side surface of the convex wall is in contact with the inner wall of the lower forming groove; when the upper die and the lower die are closed, the bottom of the pointed wall abuts against the inner side surface of the convex wall or the inner wall of the lower forming groove.

[0013] In one embodiment, a notch corresponding to the lower forming groove is arranged on the convex wall; when the upper die and the lower die are closed, the notch is configured to accommodate a skewer.

[0014] In one embodiment, a skewer pressing member corresponding to the notch is arranged on the upper die, and the skewer pressing member is configured to press the skewer into the corresponding notch when the upper die moves downward.

[0015] In one embodiment, the central angle formed by the cross-sectional curve of the upper forming groove is less than 180 degrees, and the central angle formed by the cross-sectional curve of the lower forming groove is greater than the central angle formed by the cross-sectional curve of the upper forming groove.

[0016] In one embodiment, the lower surface of the upper die core is higher than the height of the center corresponding to the cross-sectional curve of the upper forming groove.

[0017] In one embodiment, the upper surface of the lower die core is lower than the height of the center corresponding to the cross-sectional curve of the lower forming groove.

[0018] In another aspect, the present application further provides an automatic skewer inserting machine for skewer-shaped steamed buns, including:

[0019] A frame body, on which a lifting mechanism is arranged, and the lifting mechanism is provided with a liftable part that can move up and down;

[0020] A horizontal skewer inserting table, on which a supporting part for supporting a skewer rack is arranged;

[0021] A mold assembly, and the mold assembly adopts the above-mentioned mold assembly;

[0022] A drive assembly configured to at least drive the horizontal label inserting platform to reciprocate horizontally;

[0023] Wherein, the upper mold of the mold assembly is arranged on the lifting part, and the lower mold of the mold assembly is arranged on the frame body and is located below the lower mold.

[0024] In one embodiment, the drive assembly includes:

[0025] A horizontal drive assembly configured to drive the horizontal label inserting platform to reciprocate horizontally and switch to move to a first position, a second position and a third position; along the direction in which the horizontal label inserting platform moves towards the lower mold, the horizontal distances between the horizontal label inserting platform and the lower mold at the first position, the second position and the third position decrease in sequence;

[0026] A vertical drive assembly configured to drive the horizontal label inserting platform to reciprocate up and down.

[0027] The technical solution of the present utility model has the following technical effects compared with the prior art: by providing a plugging groove and a sharp wall on the upper mold, and a convex wall on the lower mold, the inner side surface of the convex wall is connected to the inner wall of the lower forming groove; when the upper mold and the lower mold are closed, the bottom of the sharp wall abuts against the inner side surface of the convex wall or the inner wall of the lower forming groove; the above settings of the mold can make the outer surface of the strip-shaped dough at the joint of the upper mold and the lower mold smooth, reduce the generation of flash or edges, and realize that the surface of the steamed bun produced by the mold assembly is smooth, optimize the appearance of the steamed bun, and improve the product quality and yield of the steamed bun.

[0028] In addition, by setting a horizontal drive assembly and a vertical drive assembly, the vertical drive assembly can drive the horizontal skewer placing platform to move up and down. At the same time, the horizontal drive assembly can drive the horizontal skewer placing platform to switch and move among three positions. During the skewer inserting process, the vertical drive assembly can first drive the horizontal skewer placing platform to rise. Then, the horizontal drive assembly can drive the horizontal skewer placing platform to move to the second position, so that the skewers on the skewer rack move above the lower die. At this time, the vertical projection of the skewers partially overlaps with the end of the strip-shaped dough in the lower forming groove. Then, the vertical drive assembly drives the horizontal skewer placing platform to descend, and at the same time, the upper die also descends under the drive of the lifting mechanism, so that the skewers are pressed downward into the end of the strip-shaped dough. Subsequently, the horizontal skewer placing platform moves to the third position, so that the skewers can be inserted into the appropriate position in the strip-shaped dough. By adopting the above step-by-step pressing and inserting skewer method, the skewers are not directly inserted from the end face of the strip-shaped dough, which causes axial compression deformation at the end of the strip-shaped dough. The head of the skewer is first pressed into the strip-shaped dough from the side of the strip-shaped dough by the upper die and then the skewer is inserted. During the skewer inserting process, the end of the strip-shaped dough is constrained by the upper die and the lower die to keep its shape unchanged, while the skewer is inserted from a position a certain distance away from the top of the dough. Finally, the appearance of the finished product after skewer inserting is more beautiful, realizing the improvement of the product quality and the finished product rate of the steamed buns while meeting the requirements of automatic skewer inserting production. Description of the Drawings

[0029] Figure 1 Structural schematic diagram of an embodiment of the mold assembly of the present utility model in the mold closing state;

[0030] Figure 2 Structural schematic diagram of an embodiment of the mold assembly of the present utility model in the mold opening state;

[0031] Figure 3 is Figure 1 One of the structural schematic diagrams of the upper die in

[0032] Figure 4 is Figure 1 Another structural schematic diagram of the upper die in

[0033] Figure 5 is Figure 1 Another structural schematic diagram of the upper die in

[0034] Figure 6 is Figure 1 One of the structural schematic diagrams of the lower die in

[0035] Figure 7 is Figure 1 Another structural schematic diagram of the lower die in

[0036] Figure 8 One of the structural schematic diagrams of an embodiment of the automatic skewer inserting machine for skewer-shaped steamed buns of the present utility model;

[0037] Figure 9 This is the second structural schematic diagram of an embodiment of the automatic skewer inserting machine for stick-shaped steamed buns of the present utility model;

[0038] Figure 10 This is the third structural schematic diagram of an embodiment of the automatic skewer inserting machine for stick-shaped steamed buns of the present utility model;

[0039] Figure 11 This is the fourth structural schematic diagram of an embodiment of the automatic skewer inserting machine for stick-shaped steamed buns of the present utility model;

[0040] Figure 12 This is the fifth structural schematic diagram of an embodiment of the automatic skewer inserting machine for stick-shaped steamed buns of the present utility model;

[0041] Figure 13 is Figure 9 the partial enlarged schematic diagram of area A in;

[0042] Figure 14 This is the structural schematic diagram of the skewer rack in an embodiment of the automatic skewer inserting machine for stick-shaped steamed buns of the present utility model.

[0043] Reference numerals:

[0044] 1. Frame body; 11. Workbench; 12. Bottom vertical frame; 13. Top vertical frame; 14. Bottom support frame; 15. Movable wheel; 2. Lower mold; 21. Lower forming groove; 23. Guard plate; 24. Convex wall; 25. Notch; 201. Lower shell; 202. Lower mold core; 3. Rotary conveying device; 30. Driving motor; 301. Main driving wheel; 31. Driven driving wheel; 32. Sprocket; 33. Chain; 34. Fixed seat; 4. Horizontal skewer inserting table; 41. Support table; 42. Positioning and holding frame; 421. Support groove; 43. Tension spring; 44. Front horizontal slider; 45. Rear horizontal slider; 5. Extrusion driving cylinder; 51. Extrusion contact head; 6. Upper mold; 61. Lower pressing track; 62. Cross beam; 63. Fixed plate; 64. Lower pressing driving cylinder; 65. Lower pressing slider; 66. Vertical lifting plate; 67. Upper forming groove; 68. Insertion groove; 69. Sharp wall; 60. Pressing plate; 601. Upper shell; 602. Upper mold core; 7. Vertical driving assembly; 71. Vertical track; 72. Vertical slider; 73. Support rod; 74. Horizontal support seat; 75. Support part cross bar; 76. Vertical lifting cylinder; 8. Horizontal driving assembly; 81. Horizontal driving cylinder; 82. Horizontal driving fixed plate; 83. Connecting plate; 84. Horizontal track; 9. Skewer rack; 91. Skewer. Detailed implementation manners

[0045] Embodiment 1, as Figures 1 - 7 shown, the mold assembly in an embodiment of the present application includes:

[0046] Upper mold 6, at least one upper forming groove 67 is provided on the upper mold 6, and a plugging groove 68 is further provided on the upper mold 6, and the plugging groove 68 surrounds the outside of the upper forming groove 67;

[0047] Lower mold 2, at least one lower forming groove 21 is provided on the lower mold 2, and an outwardly convex convex wall 24 is further provided on the lower mold 2, and the convex wall 24 surrounds the outside of the lower forming groove 21;

[0048] Wherein, when the upper mold 6 and the lower mold 2 are closed, the convex wall 24 is inserted into the plugging groove 68, and the convex wall 24 is made of an elastic material.

[0049] Specifically, since the structures of the upper mold and the lower mold of the automatic bun stick inserting machine in the prior art are the same, after the upper and lower molds are closed and extrude the strip-shaped dough, it is easy to form dough overflow at the connection of the two molds. Moreover, after the upper and lower template surfaces are abutted, the bun will form flash or ridges at the edge of the semi-mold cavity of the bun due to being extruded during the stick inserting process, resulting in the surface of the bun after stick inserting not being smooth, and seriously affecting the appearance and quality of the stick bun after stick inserting.

[0050] Therefore, a plugging groove 68 is provided on the upper mold 6 outside the upper forming groove 67, and an outwardly convex convex wall 24 is further provided on the lower mold 2, and the convex wall 24 also surrounds the outside of the lower forming groove 21.

[0051] During use, after the upper mold 6 and the lower mold 2 are closed, the convex wall 24 is inserted into the plugging groove 68 to improve the better matching of the upper mold 6 and the lower mold 2 after closing, thereby reducing the overflow of the strip-shaped dough due to extrusion during the closing process. At the same time, during the stick inserting process after closing, it can also reduce the occurrence of flash or ridges to improve the appearance quality of the strip-shaped dough.

[0052] Further, the lower mold 2 includes a lower housing 201 and a lower mold core 202, the lower mold core 202 is arranged on the lower housing 201, the lower forming groove 21 and the convex wall 24 are provided on the lower mold core 202, and the edge of the lower housing 201 forms a downward flange, and the downward flange is arranged on the periphery of the lower mold core 202. Wherein, the lower mold core 202 is integrally made of an elastic material, or the lower mold core 202 is integrally made of a hard material, and the convex wall 24 and the lower mold core 2 are of a split structure, and the convex wall 24 is fixed on the lower mold core 2.

[0053] Specifically, at least the convex wall 24 is made of an elastic material, and the convex wall 24 can undergo elastic deformation due to its elasticity. In this way, after the convex wall 24 is inserted into the plugging groove 68, the inner surface of the convex wall 24 can deform toward the lower edge part of the pointed wall 69, so that the outer periphery of the strip-shaped dough is smoother, improving the appearance and quality of the stick bun 91 after stick inserting.

[0054] Further, a sharp wall 69 is formed between the insertion groove 68 and the upper forming groove 67; the inner side surface of the convex wall 24 is in contact with the inner wall of the lower forming groove 21; when the upper die 6 and the lower die 2 are clamped, the bottom of the sharp wall 69 abuts against the inner side surface of the convex wall 24 or the inner wall of the lower forming groove 21.

[0055] Specifically, a sharp wall 69 is formed between the insertion groove 68 and the upper forming groove 67, and the sharp wall 69 abuts against the inner side of the convex wall 24. In this way, the strip-shaped dough between the upper forming groove 67 and the lower forming groove 21 is further extruded and shaped. When the strip-shaped dough is extruded, the sharp wall 69 abutting against the inner side of the convex wall 24 can limit the dough from being extruded out between the upper forming groove 67 and the lower forming groove 21, making the outer surface of the strip-shaped dough at the joint of the upper die and the lower die smooth, thereby effectively reducing the generation of flash, and even preventing the generation of flash or edges and corners, improving the appearance and quality of the steamed bun.

[0056] In one embodiment, a notch 25 corresponding to the lower forming groove 21 is provided on the lower die 2; when the upper die 6 and the lower die 2 are clamped, the notch 25 is configured to accommodate the skewer 91 thereon.

[0057] Specifically, during the skewer inserting process, the skewer 91 can be located in the notch 25 and inserted into the strip-shaped dough, thereby meeting the requirements of skewer inserting.

[0058] Wherein, a notch 25 can be provided on the convex wall 24, the notch 25 is adjacent to the edge of the side of the lower die 2, and the notch 25 is configured to accommodate the skewer 91 thereon.

[0059] Further, a skewer pressing member corresponding to the notch 25 is provided on the upper die 6, and the skewer pressing member is configured to press the skewer 91 into the corresponding notch 25 when the upper die moves downward.

[0060] Specifically, during the process of inserting the skewer 91, the skewer 91 moves above the strip-shaped dough of the lower die 2, and the lower die 2 descends to press down the skewer 91 through the skewer pressing member, and the skewer 91 will be pressed into the notch 25.

[0061] Wherein, a pressing plate 60 is provided on the side of the upper die 6 corresponding to the notch 25, the pressing plate 60 serves as the skewer pressing member, the lower edge of the pressing plate 60 is flush with the lower surface of the upper die 6 or extends below the lower surface of the upper die 6, and the pressing plate 60 is configured to press the skewer 91 of the skewer rack 9 into the corresponding notch 25.

[0062] Specifically, during the process of inserting the skewer 91, the skewer 91 moves above the strip-shaped dough in the lower mold 2. The lower mold 2 descends to press down on the skewer 91. After pressing the skewer 91 into the notch 25, the lower mold 2 presses down on the skewer 91, causing the skewer 91 to be arranged in the central area of the strip-shaped dough. Further, during the skewer insertion process, the skewer 91 can be inserted substantially around the center line of the strip-shaped dough to improve the quality of skewer insertion.

[0063] Furthermore, the upper mold 6 includes an upper shell 601 and an upper mold core 602. The upper mold core 602 is disposed on the upper shell 601. The upper mold core 602 is provided with the upper forming groove 67, the insertion groove 68, and the pointed wall 69. The edge of the upper shell 601 forms an upward flange, and the upward flange is arranged around the upper mold core 602.

[0064] Specifically, the upper mold core 602 of the upper mold 6 can be made of hard plastic, such as made of PE, and the upper shell 601 can be made of sheet metal to protect the upper mold core 602. Similarly, the lower mold core 202 or the convex wall 24 of the lower mold 2 can be made of elastic material, such as made of silicone or soft rubber, and the lower shell 201 can be made of sheet metal to protect the lower mold core 202.

[0065] Further, the pressing plate 60 and the upper shell 601 are of a split structure, and the pressing plate 60 is fixed on the upward flange on the corresponding side of the upper shell 601; or, the pressing plate 60 and the upper shell 601 are of an integral structure, and the lower edge of the upward flange on the corresponding side of the upper shell 601 extends below the lower surface of the upper mold and forms the pressing plate 60.

[0066] Furthermore, the central angle formed by the cross-sectional curve of the upper forming groove 67 is less than 180 degrees, and the central angle formed by the cross-sectional curve of the lower forming groove 21 is greater than the central angle formed by the cross-sectional curve of the upper forming groove 67.

[0067] Specifically, for the upper forming groove 67, the curve formed by its cross-section can be an arc structure, and the central angle is less than 180 degrees, that is, the arc formed by the cross-section of the upper forming groove 67 is less than a semi-circle. For the lower forming groove 21, it needs to place the strip-shaped dough and cooperate with the upper forming groove 67. The radian of the arc formed by the cross-section of the lower forming groove 21 is greater than the radian of the arc formed by the cross-section of the upper forming groove 67. For example: the central angle formed by the cross-sectional curve of the lower forming groove 21 can be 180 degrees, and the inner wall of the lower forming groove 21 and the inner side surface of the convex wall 24 are smoothly transitioned. Further, after the mold is closed, the pointed wall 69 can be inserted into the inner side of the convex wall 24 to place the overflow material to reduce the occurrence of flash.

[0068] In addition, since the arc formed by the cross-section of the upper forming groove 67 is less than a semi-circle, when the upper die 6 presses down, the pointed wall 69 can smoothly insert into the inner side of the convex wall 24, making it easier for the upper die 6 and the lower die 2 to be positioned and aligned.

[0069] Furthermore, the lower surface of the upper die core 602 is higher than the height of the center of the circle corresponding to the cross-sectional curve of the upper forming groove 67. The upper surface of the lower die core 202 is lower than the height of the center of the circle corresponding to the cross-sectional curve of the lower forming groove 21.

[0070] Specifically, when the upper forming groove 67 and the lower forming groove 21 are in the closed die state, the center of the circle of the cross-sectional curve of the upper forming groove 67 coincides with the center of the circle of the cross-sectional curve of the lower forming groove 21. Therefore, setting the upper surface of the lower die core 202 and the lower surface of the upper die core 602 in the above manner can ensure the accuracy and fitting degree of the closed die.

[0071] Further, the inner surface of the convex wall 24 is connected to the groove wall of the lower forming groove 21, and the outer surface of the convex wall 24 is an inclined surface.

[0072] Specifically, connecting the groove wall of the lower forming groove 21 to the inner surface of the convex wall 24 can facilitate the operator to put the strip-shaped dough into the lower forming groove 21, thereby improving the operation convenience.

[0073] Still further, the pointed wall 69 does not extend below the lower surface of the upper die core 602, and the vertical distance between the pointed wall 69 and the lower surface of the upper die core 602 is about 1 mm - 5 mm.

[0074] Specifically, the pointed wall 69 is formed between the upper forming groove 67 and the insertion groove 68, and the pointed wall 69 extends downward and does not exceed the lower surface of the upper die core 602. In this way, after the pointed wall 69 inserts into the inner side of the convex wall 24, the edge of the pointed wall 69 will not extend to the horizontal plane where the center of the cross-sectional curve of the upper forming groove 67 is located. And in cooperation with the lower die core 202 being made of an elastic material, the convex wall 24 of the lower die core 202 is deformed by extrusion after the closed die, so that the inner surface of the convex wall 24 can deform towards the lower edge part of the pointed wall 69, making the outer circumference of the strip-shaped dough smoother, and improving the aesthetics and quality of the steamed bun after inserting the skewer 91.

[0075] By providing the insertion groove 68 and the pointed wall 69 on the upper die 6, and providing the convex wall 24 on the lower die 2, the inner side surface of the convex wall 24 is connected to the inner wall of the lower forming groove 21; when the upper die 6 and the lower die 2 are in the closed die state, the top of the pointed wall 69 abuts against the inner side surface of the convex wall 24 or the inner wall of the lower forming groove 21. The above setting of the mold can make the outer surface of the strip-shaped dough at the joint of the upper die 6 and the lower die 2 smooth, reduce the generation of flash or edges, and improve the aesthetics and quality of the steamed bun.

[0076] Embodiment 2, as Figures 1 - 14 shown, the skewer bun automatic skewer inserting machine provided in another embodiment of the present application includes:

[0077] A frame body 1, on which a lifting mechanism is provided, and the lifting mechanism is provided with a lifting part that can move up and down;

[0078] A mold assembly, the mold assembly includes an upper mold 6 and a lower mold 2, the upper mold 6 is provided with at least one upper forming groove 67, and the lower mold 2 is provided with at least one lower forming groove 21;

[0079] A horizontal skewer inserting platform 4, on which a supporting part for supporting a skewer rack 9 is provided;

[0080] A horizontal driving assembly 8, which is configured to drive the horizontal skewer inserting platform 4 to reciprocate horizontally;

[0081] A vertical driving assembly 7, which is configured to drive the horizontal skewer inserting platform 4 to reciprocate up and down;

[0082] Wherein, the upper mold 6 is arranged on the lifting part, and the lower mold 2 is arranged on the frame body 1 and is located below the lower mold 2.

[0083] Specifically, the horizontal driving assembly 8 is configured to drive the horizontal skewer inserting platform 4 to reciprocate horizontally and switch to move to a first position, a second position and a third position; along the direction in which the horizontal skewer inserting platform 4 moves towards the lower mold 2, the horizontal distances of the horizontal skewer inserting platform 4 from the lower mold 2 at the first position, the second position and the third position decrease in sequence.

[0084] Further, the vertical driving assembly 7 includes a vertical track 71, a lifting frame and a vertical lifting cylinder 76; the vertical track 71 is arranged on the frame body 1, the lifting frame is slidably arranged on the vertical track 71, the vertical lifting cylinder 76 is arranged on the frame body 1, the lifting frame is connected to the vertical lifting cylinder 76, and the vertical lifting cylinder 76 is configured to drive the lifting frame to move up and down along the vertical track 71; wherein, the horizontal driving assembly 8 is arranged on the lifting frame.

[0085] Specifically, the vertical drive assembly 7 guides the lifting frame to move up and down through the vertical track 71. Among them, the lifting frame includes a vertical slider 72, a support rod 73, a horizontal support base 74, and a support part cross bar 75. The vertical slider 72 is slidably arranged on each vertical slide rail 72. The support rod 73 is fixedly arranged on the vertical slider 72. The horizontal support base 74 is arranged at the top of the support rod 73. The support part cross bar 75 is arranged between the two horizontal support bases 74. The horizontal drive assembly 8 is arranged on the support part cross bar 75. In addition, two relatively arranged vertical tracks 71 are arranged on the frame body 1. The specific process of the vertical drive assembly 7 driving the horizontal drive assembly 8 and the horizontal plug inserting platform 4 to lift is not described in detail here.

[0086] Further, the horizontal drive assembly 8 includes a horizontal track 84 and a horizontal drive cylinder 81. The horizontal track 84 and the horizontal drive cylinder 81 are respectively arranged on the lifting frame. The horizontal plug inserting platform 4 is slidably arranged on the horizontal track 84. The horizontal drive cylinder 81 is connected to the horizontal plug inserting platform 4 and is configured to drive the horizontal plug inserting platform 4 to move horizontally back and forth.

[0087] Specifically, the horizontal drive assembly 8 is provided with a horizontal track 84 to meet the sliding requirements of the horizontal plug inserting platform 4. A front-side horizontal slider 44 that can slide back and forth is arranged on the horizontal track 84. The horizontal plug inserting platform 4 is fixed on the front-side horizontal slider 44, and the horizontal plug inserting platform 4 realizes reciprocating sliding under the guidance of the horizontal track 84.

[0088] Among them, the horizontal drive assembly 8 further includes a fixing plate 63 and a connecting plate 83. The fixing plate 63 is vertically arranged on the lifting frame. One end of the horizontal drive cylinder 81 is arranged on the fixing plate 63. The connecting plate 83 is arranged on the horizontal plug inserting platform 4 and is connected to the other end of the horizontal drive cylinder 81.

[0089] In addition, a slidable positioning and holding frame 42 is further arranged on the horizontal track 84. A plurality of support grooves 421 are arranged on the positioning and holding frame 42. A tension spring 43 is further arranged between the positioning and holding frame 42 and the lifting frame.

[0090] Specifically, a rear horizontal slider 45 capable of reciprocating sliding is provided on the horizontal track 84, and the positioning holder 42 is arranged on the rear horizontal slider 45. Driven by the horizontal driving cylinder 81, the horizontal stick inserting platform 4 moves along the horizontal track 84 towards the lower die 2 through the front horizontal slider 44. During the movement, the front horizontal slider 44 approaches and abuts against the rear horizontal slider 45 to drive the positioning holder 42 to move close to the lower die 2 together. Moreover, after the stick inserting operation is completed, the horizontal stick inserting platform 4 returns to the original position, and the stick holder 9 is taken out to take out the strip-shaped dough from the lower die 2. Under the action of the tension spring 43, the positioning holder 42 also realizes automatic reset.

[0091] A workbench 11 is provided on the upper part of the frame body 1, and the workbench 11 can be a square frame. On the frame body 1, a top vertical frame 13 is provided above the workbench 11, and a lifting mechanism is arranged on the top vertical frame 13. The lifting mechanism is provided with a lifting part that can move up and down. The composition structure of the lifting mechanism is as follows: A pressing track 61 and a cross beam 62 are vertically arranged on the top vertical frame 13. A fixing plate 63 is arranged on the cross beam 62 for fixing the pressing driving cylinder 64. The top of the vertical lifting plate 66 is forced by the pressing driving cylinder 64. The side part of the vertical lifting plate 66 is vertically guided through the cooperation of the pressing slider 65 and the pressing track 61. The vertical lifting plate 66 is the lifting part. Through the above structure, the clamping of the upper die 6 and the lower die 2 can be realized.

[0092] To realize the adjustment in the initial state, the present utility model processes a vertical long hole on the fixing plate 63, which can realize the fine adjustment of the installation position of the pressing driving cylinder 64, so as to realize the vertical fine adjustment operation when making steamed buns of different sizes. The specific structural form of adjusting the installation position of the pressing driving cylinder 64 is not limited and elaborated here.

[0093] A horizontal stick inserting platform 4 is arranged at the rear side of the top vertical frame 13. A supporting part for supporting the stick holder 9 is arranged on the horizontal stick inserting platform 4. The horizontal stick inserting platform 4 is connected to the horizontal driving assembly 8, and the horizontal driving of the stick holder 9 is realized through the horizontal driving assembly 8. An extrusion part is arranged on the horizontal stick inserting platform 4. The extrusion part is composed of an extrusion driving cylinder 5 and an extrusion contact head 51. By driving the extrusion driving cylinder 5, the up and down movement of the extrusion contact head 51 is realized, and then the extrusion fixation of the stick holder 9 is realized. The stick holder 9 can include a square rod-shaped structure, and a plurality of sticks 91 are arranged on the rod-shaped structure.

[0094] When this automatic stick inserting machine for stick-shaped steamed buns is running, an external operator puts the strip-shaped dough into the lower forming groove 21 on the lower die 2. In order to make the formed steamed buns more smooth, a matching upper forming groove 67 is also arranged on the upper die 6.

[0095] When the skewer-shaped steamed buns are placed into the lower forming groove 21, the skewer rack 9 is placed on the horizontal skewer-inserting support table 4 and the extrusion contact head 51 is driven by the extrusion driving cylinder 5 to press on the skewer rack 9, so as to realize the extrusion and fixation of the skewer rack 9.

[0096] After the strip-shaped dough is placed, the driving motor 30 runs to convey the lower mold 2 below the upper mold 6 and stop; at this time, the lower pressing driving cylinder 64 presses down to drive the vertical mold-closing drive of the upper mold 6 and the lower mold 2. After mold closing, the strip-shaped dough is extruded and fixed, and the horizontal skewer-inserting support table 4 and the skewer rack 9 are horizontally driven through the horizontal driving assembly 8, and the above actions realize inserting the skewers 91 into the strip-shaped dough.

[0097] During actual operation, if the skewers 91 are directly inserted from the skewer-inserting end of the strip-shaped dough, the tip of the strip-shaped dough will be squeezed and damaged, and the pastry feature of "both ends of the skewer-shaped steamed bun are pointed" cannot be fully presented. Therefore, to avoid damaging the tip of the skewer-shaped steamed bun and improve the overall appearance effect of the skewer-shaped steamed bun, a vertical driving assembly 7 and a horizontal driving assembly 8 are arranged inside the frame body 1. The vertical driving assembly 7 includes a vertical track 71 fixed on the bottom vertical frame 12. A vertical slider 72 is arranged on the vertical track 71. A support rod 73 is arranged on the vertical slider 72. The top of the support rod 73 is provided with a horizontal support seat 74. A support part cross bar 75 is arranged on the horizontal support seat 74. A vertical lifting cylinder 76 is arranged on the bottom support frame 14 of the frame body 1. The connection part between the bottom support frame 14 and the vertical lifting cylinder 76 is also provided with a long hole, which can realize the up and down fine adjustment of the vertical lifting cylinder 76. One end of the vertical lifting cylinder 76 is fixed on the support part cross bar 75, and the vertical movement of the entire horizontal support seat 74 and the support part cross bar 75 can be realized through the vertical lifting cylinder 76.

[0098] A horizontal driving assembly 8 is arranged in cooperation with the horizontal support seat 74 and the support part cross bar 75. The horizontal driving assembly 8 includes a horizontal track 84 arranged on the horizontal support seat 74. A horizontal driving fixed plate 82 is vertically arranged on the support part cross bar 75. A long hole is arranged on the horizontal driving fixed plate 82. A horizontal driving cylinder 81 is fixed through the long hole and can realize horizontal fine adjustment. The moving end of the horizontal driving cylinder 81 is connected with a connecting plate 83. The driving of the connecting plate 83 is realized through the horizontal driving cylinder 81. The top of the connecting plate 83 is fixed on the horizontal skewer-inserting support table 4.

[0099] A support table 41 is arranged on the horizontal track 84. A positioning and holding frame 42 is arranged on the support table 41. A number of troughs 421 are arranged on the positioning and holding frame 42 in cooperation with the skewers 91 on the skewer rack 9. The top surface of the support table 41 is lower than the bottom surface of the horizontal skewer-inserting support table 4. It is matched with the horizontal track 84 on the horizontal support seat 74 through the rear horizontal slider 45. A tension spring 43 is arranged between the rear horizontal slider 45 and the lifting frame.

[0100] After the above structural settings, when the device is in operation, after an external person puts the strip-shaped dough into the lower forming groove 21 of the lower mold 2, the skewer rack 9 is placed on the horizontal skewer inserting support table 4, and the skewers 91 of the skewer rack 9 are correspondingly placed into the support grooves 421 of the positioning and holding rack 42.

[0101] After the strip-shaped dough is placed, the driving motor 30 operates to horizontally transport the lower mold 2 to the lower part of the upper mold 6 at a relatively fast speed and position it stationary; the vertical driving assembly 7 drives the horizontal skewer inserting support table 4 to rise, so that the height of the skewers 91 of the skewer rack 9 is higher than the height of the strip-shaped dough in the lower forming groove 21 of the lower mold 2. Then, the horizontal skewer inserting support table 4 realizes the horizontal driving of the skewer rack 9 through the horizontal driving assembly 8. During driving, the front horizontal slider 44 at the bottom of the horizontal skewer inserting support table 4 squeezes the rear horizontal slider 45, pushing the support table 41 and the positioning and holding rack 42 to drive the skewers 91 to displace synchronously. The purpose of this structural setting is to ensure that the skewers 91 are in horizontal motion when horizontally inserted into the steamed bun, and positioning is achieved through the positioning and holding rack 42.

[0102] The skewers 91 stop moving at a position 2 - 3 cm away from the end of the strip-shaped dough and at a horizontal height of 5 cm. The vertical driving assembly 7 drives the horizontal skewer inserting support table 4 to fall, and the skewer rack 9 synchronously falls to a position slightly above the center of the diameter of the strip-shaped dough. Then, the upper mold 6 drops. On the one hand, the upper mold 6 and the lower mold 2 press the strip-shaped dough tightly in the best position. On the other hand, the upper mold 6 presses the skewers 91 into the strip-shaped dough from the side of the end of the strip-shaped dough, and makes the skewers 91 basically near the central axis position of the strip-shaped dough. The skewer rack 9 is horizontally inserted into the strip-shaped dough for the second time. After the skewers 91 move to the set ideal depth position, then the upper mold 6 is lifted, and at the same time, the skewer rack 9 squeezes the driving cylinder 5 to open, and the horizontal driving assembly 8 drives the horizontal skewer inserting support table 4 to horizontally retract and reset to the original position. After the horizontal skewer inserting support table 4 retracts, the operator takes out the skewer rack 9 and the skewers in the lower forming groove 21. A tension spring 43 is arranged between the rear horizontal slider 45 at the bottom of the support table 41 and the lifting frame, and the rear horizontal slider 45 is retracted and reset through the tension spring 43. The above realizes the automatic completion of the skewer inserting action of a single skewer rack 9 for the strip-shaped dough.

[0103] The way of the lifting operation of the vertical driving assembly 7 cooperating with the multi-stage horizontal movement of the horizontal driving assembly 8 ensures the characteristic of the skewer steamed bun with sharp ends at both ends, and can achieve the same perfect skewer inserting effect as that of a skilled worker manually inserting skewers. It more appropriately imitates the manual skewer inserting action in the prior art, with high efficiency and accurate precision, and can realize the standardized skewer inserting and large-scale production of skewer steamed buns.

[0104] The operator puts the strip of steamed bun dough with the skewer 91 into the lower forming groove 21 of the lower mold 2, and the lower mold 2 is located below the upper mold 6. At the same time, the operator places the skewer rack 9 on the horizontal skewer support 4, and the horizontal skewer support 4 is provided with a squeezing drive cylinder 5, and the squeezing drive cylinder 5 is provided with a squeezing contact 51 that can move up and down, and a pressing space for squeezing the skewer rack 9 is formed between the squeezing contact 51 and the horizontal skewer support 4, and the squeezing drive cylinder 5 drives the squeezing contact 51 to press on the skewer rack 9.

[0105] The vertical drive assembly 7 will drive the horizontal stick insertion support 4 to rise, so that the stick 91 on the stick holder 9 is higher than the strip dough in the lower forming groove 21 of the lower mold 2. Then, the horizontal drive assembly 8 drives the horizontal stick insertion support 4 to move horizontally from the first position to the second position, at which time, the head of the stick 91 will be located above the strip dough and form an overlapping area with the end of the strip dough in the vertical direction. The vertical drive assembly 7 will drive the horizontal stick insertion support 4 to descend, so that the stick 91 is close to the upper surface of the strip dough. At the same time, the upper mold 6 descends, and the edge of the upper mold 6 will press on the stick 91, so that the stick 91 is pressed into the end of the strip dough. The horizontal drive assembly drives the horizontal stick insertion support to continue to move from the second position to the third position, so that the stick 91 is inserted into the strip dough in place to complete the step-by-step stick insertion.

[0106] During the process of pressing the stick 91 into the end of the dough strip, the dough strip will be shaped by the upper molding groove 67 of the upper mold 6 and the lower molding groove 21 of the lower mold 2 to ensure that the end of the dough strip maintains a stable appearance and reduce the risk of the head of the dough strip losing its pointed appearance due to the end being squeezed in the length direction during the stick insertion process.

[0107] Among them, for the horizontal skewer holder 4, its upper surface will form a supporting portion to carry the skewer rack 9, and the upper surface of the horizontal skewer holder 4 can form a step surface, and the skewer rack 9 will be attached to the vertical surface of the step surface, and then, the skewer rack 9 will be pressed by the extrusion contact 51 driven by the extrusion drive cylinder 5.

[0108] Furthermore, a rotating conveying device 3 is provided on the frame 1, and the rotating conveying device 3 includes a driving motor 30, a plurality of sprockets 32 and a chain 33. The sprockets 32 are rotatably provided on the frame 1, and the chain 33 is wound around the plurality of sprockets 32. The driving motor 30 is transmission-connected to at least one of the sprockets 32; a plurality of the lower molds 2 are provided on the chain 33, and the chain 33 is configured to drive the lower molds 2 to cyclically move on the frame 1 to below the upper mold 6.

[0109] Specifically, the rotary conveying device 3 can drive a plurality of lower molds 2 to move one by one below the upper mold through a chain 33. Two chains 33 can be configured to better carry and support the lower mold 2.

[0110] A rotary conveying device can be configured on the workbench 11. The rotary conveying device includes a driving motor 30 arranged inside the frame 1. The driving motor 30 drives the main driving wheel 301 to rotate. Two sets of wheel axle groups are arranged on the frame of the workbench 11, and each set of wheel axle groups includes two sprockets 32 and a driving shaft. At least one sprocket 32 is extended with a driven wheel 31. The driving motor 30 drives the driven wheel 31, and the driven wheel 31 drives the chain 33 through the sprocket 32 to realize the synchronous connection of the two sets of wheel axle groups. A number of fixing seats 34 are arranged on the chain 33, and the lower mold 2 and the guard plate 23 are fixed through the fixing seats 34. The lower mold 2 and the guard plate 23 are arranged at intervals to reserve an operation position for external workers. At the same time, a time difference during the operation of the stick inserting action can be reserved through the setting of the guard plate 23.

[0111] The technical solution of the present utility model has the following technical effects compared with the prior art: By setting the horizontal driving assembly 8 and the vertical driving assembly 7, the vertical driving assembly 7 can drive the horizontal stick inserting platform 4 to move up and down. At the same time, the horizontal driving assembly 8 can drive the horizontal stick inserting platform 4 to switch and move among three positions. During the stick inserting process, the vertical driving assembly 7 can first drive the horizontal stick inserting platform 4 to rise. Then, the horizontal driving assembly 8 can drive the horizontal stick inserting platform 4 to move to the second position so that the sticks 91 on the stick rack 9 move above the lower mold 2. At this time, the vertical projection of the stick 91 partially overlaps with the end of the strip-shaped dough in the lower forming groove 21. Then, the vertical driving assembly 7 drives the horizontal stick inserting platform 4 to descend, and at the same time, the upper mold 6 also descends under the drive of the lifting mechanism, so that the stick 91 is pressed downward into the end of the strip-shaped dough. Subsequently, the horizontal stick inserting platform 4 moves to the third position so that the stick 91 can be inserted into an appropriate position in the strip-shaped dough. By adopting the above step-by-step pressing and inserting stick inserting method, the stick 91 is not directly inserted from the end face of the strip-shaped dough, which causes axial compression deformation of the end of the strip-shaped dough. The head of the stick is first pressed into the strip-shaped dough from the side of the strip-shaped dough by the upper mold 6 and then the stick is inserted. During the stick inserting process, the end of the strip-shaped dough is constrained by the upper mold 6 and the lower mold 2 to keep its shape unchanged, while the stick 91 is inserted from a position a certain distance away from the top of the dough. Finally, the appearance of the finished product after stick inserting is more beautiful, and the product quality and yield of steamed buns are improved while meeting the requirements of automatic stick inserting production.

[0112] The above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A mold assembly, characterized in that: include: An upper mold, wherein the upper mold is provided with at least one upper molding groove, and the upper mold is also provided with a plug-in groove, and the plug-in groove surrounds the outer side of the upper molding groove; the upper mold comprises an upper shell and an upper mold core, the upper mold core is provided on the upper shell, the edge of the upper shell forms an upper flange, and the upper mold core is provided with the upper molding groove and the plug-in groove; A lower mold, wherein at least one lower molding groove is provided on the lower mold, and a convex wall is also provided on the lower mold, and the convex wall surrounds the outer side of the lower molding groove; Wherein, when the upper mold and the lower mold are molded together, the convex wall is inserted into the plug-in groove, and the convex wall is made of elastic material; The convex wall is provided with a notch corresponding to the lower molding groove; when the upper mold and the lower mold are molded together, the notch is configured to accommodate a stick; A pressing plate is provided on the side of the upper die corresponding to the notch; The pressure plate and the upper shell are separate structures, and the pressure plate is fixed on the upper flange on the corresponding side of the upper shell; or, the pressure plate and the upper shell are an integral structure, and the lower edge of the upper flange on the corresponding side of the upper shell extends to below the lower surface of the upper mold and forms the pressure plate.

2. The mold assembly according to claim 1, characterized in that: The lower mold comprises a lower shell and a lower mold core; The lower mold core is arranged on the lower shell body, the lower mold core is provided with the lower molding groove and the convex wall, the edge of the lower shell body forms a lower flange, and the lower flange wraps around the periphery of the lower mold core; The lower mold core is made of elastic material as a whole, and the lower mold core and the convex wall are an integral structure; or, the lower mold core is made of hard material as a whole, and the lower mold core and the convex wall are separate structures, and the convex wall is arranged on the lower mold core.

3. The mold assembly according to claim 2, characterized in that: The upper flange is wrapped around the periphery of the upper mold core.

4. The mold assembly according to claim 1, characterized in that: A sharp wall is formed between the plug-in groove and the upper molding groove; The inner side surface of the convex wall is connected to the inner wall of the lower forming groove; When the upper mold and the lower mold are closed, the bottom of the pointed wall is pressed against the inner side surface of the convex wall or the inner wall of the lower molding groove.

5. The mold assembly according to claim 3, characterized in that: The center angle formed by the cross-sectional curve of the upper forming groove is less than 180 degrees, and the center angle formed by the cross-sectional curve of the lower forming groove is greater than the center angle formed by the cross-sectional curve of the upper forming groove.

6. The mold assembly according to claim 5, characterized in that: The lower surface of the upper mold core is higher than the height of the center of the circle corresponding to the cross-sectional curve of the upper molding groove; And / or, the upper surface of the lower mold core is lower than the height of the center of the circle corresponding to the cross-sectional curve of the lower molding groove.

7. An automatic skewer-inserting machine for steamed buns, characterized in that: include: A frame, wherein a lifting mechanism is provided on the frame, and the lifting mechanism is provided with a lifting part that can move up and down; A horizontal stick insertion support platform, wherein the horizontal stick insertion support platform is provided with a supporting portion for supporting the stick rack; A mold assembly, wherein the mold assembly is the mold assembly according to any one of claims 1 to 6; A driving assembly, the driving assembly being configured to at least drive the horizontal sign insertion support to move horizontally back and forth; Wherein, the upper mold of the mold assembly is arranged on the lifting part, and the lower mold of the mold assembly is arranged on the frame and located below the lower mold.

8. The automatic skewer-inserting machine for steamed buns according to claim 7, characterized in that: The drive assembly comprises: A horizontal driving assembly, wherein the horizontal driving assembly is configured to drive the horizontal stick insertion support to reciprocate horizontally and switch to a first position, a second position, and a third position; along the direction in which the horizontal stick insertion support moves toward the lower mold, the horizontal distance between the horizontal stick insertion support and the lower mold decreases in sequence when the horizontal stick insertion support is in the first position, the second position, and the third position; The vertical drive assembly and the horizontal drive assembly are configured to drive the horizontal sign insertion tray to move up and down reciprocatingly.

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