Automatic stick inserting machine for stick steamed buns

Abstract

The utility model discloses an automatic stick inserting machine for stick steamed buns, which comprises a frame body, a stick inserting mechanism, a stick inserting mechanism, a stick inserting mechanism and a stick inserting mechanism, the mold assembly comprises an upper mold and a lower mold, the upper mold is provided with at least one upper forming groove, and the lower mold is provided with at least one lower forming groove; the horizontal stick inserting supporting table is provided with a supporting part used for supporting the stick frame; the horizontal driving assembly is configured to drive the horizontal stick inserting supporting table to horizontally reciprocate and switch to move to a first position, a second position and a third position; in the moving direction of the horizontal stick inserting supporting table towards the lower die, the horizontal distances from the horizontal stick inserting supporting table to the lower die at the first position, the second position and the third position are sequentially reduced; the vertical driving assembly and the horizontal driving assembly are configured to drive the horizontal stick inserting supporting table to move up and down in a reciprocating mode. According to the stick inserting machine, the product quality and the yield of steamed buns are effectively improved under the condition that automatic stick inserting production is met.

Description

Technical Field

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

[0002] Skewered buns are also known as "skewered buns", "bamboo skewered buns" and "bar buns". They originated in Pingyuan County, Dezhou, Shandong. They are shaped like a spindle, with pointed ends and thick middle. They are also called cloth machine buns. They are named after they are steamed on bamboo chopsticks. They are a traditional specialty of Shandong's northern region. Skewered buns are pointed at both ends, do not fold in half, have a chewy texture and a sweet taste, and are loved by the local people.

[0003] In the production of skewer steamed buns, the existing production process is to use a skewer steamed bun machine to shape the skewer steamed buns, and then manually insert the skewer steamed buns on bamboo sticks (also called upper sticks), and steam them in a steamer with bamboo sticks or in a steaming room.

[0004] Chinese patent announcement number CN216165083U discloses a high-pile steamed bun automatic stick-inserting machine, which realizes automatic production by automatically inserting sticks. It adopts two upper and lower molds with semicircular cross-sections of steamed bun half-mold cavities, and the prepared strip dough is placed in the lower mold. Then, the upper mold descends and cooperates with the lower mold to fix the strip dough in the steamed bun mold cavity. Then, the stick is inserted into the strip dough from between the openings at one end of the two steamed bun half-mold cavities in the upper and lower molds. However, in actual use, since the stick is directly inserted from the end center of the strip dough, the end size of the strip dough is small, and the problem of deformation will occur after being squeezed by the stick, which ultimately leads to the poor appearance of the processed steamed bun, and the low quality and yield rate. In addition, after the upper and lower mold surfaces in the document are abutted, the steamed bun will be squeezed during the stick insertion process and will also form flash or ridges at the edge of the steamed bun half-mold cavity, resulting in the surface of the steamed bun after the stick is inserted being not smooth, which also seriously affects the appearance and quality of the stick steamed bun after the stick is inserted.

[0005] In view of this, how to design a technology that meets the requirements of automated skewer insertion production and improves the product quality and yield rate of steamed buns is a technical problem to be solved by the utility model. Utility Model Content

[0006] The utility model provides an automatic skewer steamed bun inserting machine, which can improve the product quality and yield rate of the steamed buns while meeting the requirements of automated skewer inserting production.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides an automatic skewer-inserting machine for steamed buns, comprising:

[0009] 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;

[0010] A mold assembly, the mold assembly comprising an upper mold and a lower mold, the upper mold is provided with at least one upper molding groove, and the lower mold is provided with at least one lower molding groove;

[0011] A horizontal stick insertion support platform, wherein the horizontal stick insertion support platform is provided with a supporting portion for supporting the stick rack;

[0012] 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;

[0013] A vertical drive assembly, wherein the horizontal drive assembly is configured to drive the horizontal sign insertion tray to move up and down reciprocatingly;

[0014] Wherein, the upper mold is arranged on the lifting part, and the lower mold is arranged on the frame and is located below the lower mold.

[0015] In one embodiment, the vertical drive assembly includes a vertical track, a lifting frame, and a vertical lifting cylinder;

[0016] The vertical track is arranged on the frame body, the lifting frame is slidably arranged on the vertical track, the vertical lifting cylinder is arranged on the frame body, the lifting frame is connected to the vertical lifting cylinder, and the vertical lifting cylinder is configured to drive the lifting frame to move up and down along the vertical track;

[0017] Wherein, the horizontal driving assembly is arranged on the lifting frame.

[0018] In one embodiment, the horizontal drive assembly includes a horizontal track and a horizontal drive cylinder, and the horizontal track and the horizontal drive cylinder are respectively arranged on the lifting frame;

[0019] The horizontal sign-insertion support platform is slidably disposed on the horizontal track, and the horizontal driving cylinder is connected to the horizontal sign-insertion support platform and is configured to drive the horizontal sign-insertion support platform to move horizontally back and forth.

[0020] In one embodiment, a slidable positioning and retaining frame is further provided on the horizontal track, a plurality of brackets are provided on the positioning and retaining frame, and a tension spring is further provided between the positioning and retaining frame and the lifting frame.

[0021] In one embodiment, a rotating conveying device is provided on the frame, and the rotating conveying device includes a driving motor, a plurality of sprockets and a chain. The sprockets are rotatably provided on the frame, and the chain is wound around the plurality of sprockets. The driving motor is transmission-connected to at least one of the sprockets, and the chain is configured to drive the lower mold to move cyclically on the frame to below the upper mold.

[0022] In one embodiment, the horizontal skewers inserting support is provided with an extrusion drive cylinder, and the extrusion drive cylinder is provided with an extrusion contact that can move up and down, and a compression space for compressing the skewers rack is formed between the extrusion contact and the horizontal skewers inserting support.

[0023] In one embodiment, the upper mold is further provided with an inserting groove, and the inserting groove surrounds the outer side of the upper molding groove;

[0024] The lower mold is also provided with an outwardly convex wall, and the convex wall surrounds the outer side of the lower molding groove;

[0025] Wherein, when the upper mold and the lower mold are clamped, the convex wall is inserted into the plug-in groove.

[0026] In one embodiment, a sharp wall is formed between the plug-in groove and the upper molding groove;

[0027] The inner side surface of the convex wall is connected to the inner wall of the lower molding groove; when the upper mold and the lower mold are closed, the bottom of the pointed wall is against the inner side surface of the convex wall or the inner wall of the lower molding groove.

[0028] In one embodiment, a notch corresponding to the lower molding groove is provided on the lower mold; when the upper mold and the lower mold are molded together, the notch is configured to accommodate the skewers on the skewers rack.

[0029] In one embodiment, the lower mold is further provided with an outwardly protruding convex wall, the convex wall surrounds the outer side of the lower molding groove, and the notch is provided on the convex wall.

[0030] In one embodiment, a signature pressing member corresponding to the notch is disposed on the upper mold, and the signature pressing member is configured to press the signatures on the signature rack into the corresponding notch when the upper mold moves downward.

[0031] In one embodiment, the pressing member is a pressing plate, and the lower edge of the pressing plate is flush with the lower surface of the upper mold or extends below the lower surface of the upper mold.

[0032] In one embodiment, the upper mold comprises an upper shell and an upper mold core, the upper mold core is arranged on the upper shell, the upper molding groove, the plug-in groove and the sharp wall are arranged on the upper mold core, the edge of the upper shell forms a first flange, and the first flange is arranged on the periphery of the upper mold core;

[0033] The lower mold includes a lower shell and a lower mold core, the lower mold core is arranged on the lower shell, the lower molding groove and the convex wall are arranged on the lower mold core, the edge of the lower shell forms a second flange, and the second flange is arranged on the periphery of the lower mold core.

[0034] In one embodiment, the lower mold is made of elastic material.

[0035] The technical solution of the utility model has the following technical effects compared with the prior art: by setting a horizontal driving assembly and a vertical driving assembly, the vertical driving assembly can drive the horizontal skewer insertion tray to move up and down, and at the same time, the horizontal driving assembly can drive the horizontal skewer insertion tray to switch and move between three positions. During the skewer insertion process, the vertical driving assembly can first drive the horizontal skewer insertion tray to rise, and then the horizontal driving assembly can drive the horizontal skewer insertion tray to move to the second position, so that the skewers on the skewer rack are moved to the top of the lower mold. At this time, the vertical projection of the skewer partially overlaps with the end of the strip dough in the lower forming groove, and then the vertical driving assembly drives the horizontal skewer insertion tray to descend, and at the same time the upper mold also descends under the drive of the lifting mechanism. The skewer is pressed downward into the end of the dough strip; subsequently, the horizontal skewer insertion support moves to the third position so that the skewer can be inserted into the appropriate position in the dough strip; the above-mentioned step-by-step pressing and inserting skewer insertion method is adopted, so that the skewer is not directly inserted from the end face of the dough strip to cause axial compression deformation of the end of the dough strip, and the head of the skewer is first pressed into the dough strip from the side by the upper mold before the skewer is inserted. During the skewer insertion process, the end of the dough strip is constrained by the upper and lower molds to maintain an unchanged shape, while the skewer is inserted from a position a certain distance away from the top of the dough, and the appearance of the finished product after the skewer is finally completed is more beautiful, so that the product quality and yield rate of the steamed buns can be improved while meeting the requirements of automated skewer insertion production.

[0036] In addition, the upper mold is provided with a plug-in groove and a sharp wall, and the lower mold is provided with a convex wall, the inner side of the convex wall is connected to the inner wall of the lower forming groove; when the upper mold and the lower mold are molded together, the bottom of the sharp wall is pressed against the inner side of the convex wall or the inner wall of the lower forming groove. The above-mentioned arrangement of the mold can make the outer surface of the strip dough at the junction of the upper mold and the lower mold smooth, reduce the generation of flash or edges, and improve the appearance and quality of the steamed buns. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural schematic diagram of an embodiment of the automatic skewer-inserting machine for steamed buns of the utility model;

[0038] Figure 2 This is the second structural schematic diagram of an embodiment of the automatic skewer-inserting machine for steamed buns of the utility model;

[0039] Figure 3 This is the third structural schematic diagram of an embodiment of the automatic skewer-inserting machine for steamed buns of the utility model;

[0040] Figure 4 This is a fourth structural schematic diagram of an embodiment of the automatic skewer-inserting machine for steamed buns of the utility model;

[0041] Figure 5 This is a fifth structural diagram of an embodiment of the automatic skewer-inserting machine for steamed buns of the utility model;

[0042] Figure 6 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0043] Figure 7 This is a structural schematic diagram of a skewer rack in an embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0044] Figure 8 This is one of the structural schematic diagrams of the upper mold in one embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0045] Fig. 9 This is the second structural schematic diagram of the upper mold in the first embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0046] Fig.10 This is the third structural schematic diagram of the upper mold in the first embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0047] Fig.11 This is one of the structural schematic diagrams of the lower mold in one embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0048] Fig.12 This is the second structural schematic diagram of the lower mold in the first embodiment of the automatic skewer steamed bun inserting machine of the utility model;

[0049] Fig.13 This is a positional relationship diagram of the lower mold, the skewer and the upper mold in one embodiment of the utility model of the automatic skewer steamed bun inserting machine when the horizontal skewer inserting support table moves to the second position;

[0050] Fig.14 This is a positional relationship diagram of the lower mold, the skewer and the upper mold in one embodiment of the utility model of the automatic skewer steamed bun inserting machine when the horizontal skewer inserting support moves to the third position.

[0051] Reference numerals:

[0052] 1. Frame; 11. Workbench; 12. Bottom vertical frame; 13. Top vertical frame; 14. Bottom support frame; 15. Moving wheel; 2. Lower mold; 21. Lower molding groove; 23. Guard plate; 24. Convex wall; 25. Notch; 3. Rotating conveying device; 30. Driving motor; 301. Main driving wheel; 31. Slave driving wheel; 32. Sprocket; 33. Chain; 34. Fixed seat; 4. Horizontal insertion bracket; 41. Support bracket; 42. Positioning retainer; 421. Bracket; 43. Tension spring; 44. Front horizontal slider; 45. Rear horizontal slider; 5. Extrusion drive cylinder; 51. Extrusion contact; 6. Upper mold; 61. Lower pressure track; 62. Crossbeam; 63. Fixed plate; 64. Lower pressure drive cylinder; 65. Lower pressure slider; 66. Vertical lifting plate; 67. Upper molding groove; 68. Insertion groove; 69. Sharp wall; 60. Press plate; 7. Vertical drive assembly; 71. Vertical track; 72. Vertical slider; 73. Support rod; 74. Horizontal support seat; 75. Support cross bar; 76; Vertical lifting cylinder; 8. Horizontal drive assembly; 81. Horizontal drive cylinder; 82. Horizontal drive fixing plate; 83. Connecting plate; 84. Horizontal track; 9. Skewer rack; 91. Skewers. DETAILED DESCRIPTION

[0053] Embodiment 1, as Figure 1-Figure 7 As shown, the utility model provides an automatic skewer-inserting machine for steamed buns, which comprises a frame 1. The bottom of the frame 1 is provided with moving wheels 15, and the moving wheels 15 can realize the flexible movement of the device.

[0054] A workbench 11 is disposed on the upper portion of the frame 1 , and the workbench 11 may be a square frame.

[0055] On the frame 1, a top vertical frame 13 is arranged on the upper part of 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 downward pressure track 61 and a crossbeam 62 are arranged vertically on the top vertical frame 13, and a fixing plate 63 is arranged on the crossbeam 62 to fix the downward pressure drive cylinder 64. The top force of the vertical lifting plate 66 is realized by the downward pressure drive cylinder 64. The side of the vertical lifting plate 66 is vertically guided by the downward pressure slider 65 and the downward pressure track 61. The vertical lifting plate 66 is the lifting part. Through the above structure, the upper mold 6 and the lower mold 2 can be molded.

[0056] In order to achieve adjustment in the initial state, the utility model processes a vertical long hole on the fixing plate 63, which can achieve fine adjustment of the installation position of the downward driving cylinder 64, thereby achieving vertical fine adjustment when making steamed buns of different sizes. The specific structural form of adjusting the installation position of the downward driving cylinder 64 is not limited or elaborated here.

[0057] A horizontal sign-insertion support platform 4 is arranged at the rear side of the top vertical frame 13, and a supporting portion for supporting the sign-insertion support platform 4 is arranged on the horizontal sign-insertion support platform 4, and the horizontal sign-insertion support platform 4 is connected to the horizontal driving assembly 8, and the horizontal driving assembly 8 is used to realize the horizontal driving of the sign-insertion support platform 9; an extrusion portion is arranged on the horizontal sign-insertion support platform 4, and the extrusion portion is composed of an extrusion driving cylinder 5 and an extrusion contact 51, and the extrusion contact 51 is driven up and down by driving the extrusion driving cylinder 5, thereby realizing the extrusion and fixation of the sign-insertion support platform 9, and the sign-insertion support platform 9 may include a square rod-shaped structure, and a plurality of signs 91 are arranged on the rod-shaped structure.

[0058] The workbench 11 may be provided with a rotating conveying device. The rotating conveying device includes a driving motor 30 disposed inside the frame 1, and the driving motor 30 drives the main driving wheel 301 to rotate. The frame of the workbench 11 is provided with two front and rear axle groups, and the two axle groups respectively include two sprockets 32 and a driving shaft, and at least one sprocket 32 ​​is provided with a slave driving wheel 31. The driving motor 30 drives the slave driving wheel 31, and the slave driving wheel 31 drives the chain 33 through the sprocket 32 ​​to achieve synchronous connection of the two axle groups. The chain 33 is provided with a plurality of fixing seats 34, and the fixing seats 34 are used to fix the lower mold 2 and the guard plate 23. The lower mold 2 and the guard plate 23 are arranged at intervals, and the purpose is to reserve an operating position for external workers, and at the same time, the time difference when the insertion action is running can be reserved by setting the guard plate 23.

[0059] When the automatic skewer steamed bun skewer inserting machine is in operation, an external person puts the strip of dough into the lower forming groove 21 on the lower mold 2. In order to make the formed steamed buns more rounded, a matching upper forming groove 67 is also provided on the upper mold 6.

[0060] When the skewered steamed buns are placed in the lower forming groove 21 , the skewer rack 9 is placed on the horizontal skewer inserting support 4 and the extrusion drive cylinder 5 drives the extrusion contact 51 to press on the skewer rack 9 to achieve the extrusion fixation of the skewer rack 9 .

[0061] After the strip dough is placed, the driving motor 30 is operated to transport the lower mold 2 to the bottom of the upper mold 6 and keep it stationary; at this time, the downward driving cylinder 64 is driven downward to realize the vertical mold closing drive of the upper mold 6 and the lower mold 2. After the mold closing, the strip dough is squeezed and fixed, and the horizontal stick insertion support 4 and the stick rack 9 are driven horizontally through the horizontal driving assembly 8. The above actions realize the insertion of the stick 91 into the strip dough.

[0062] In actual operation, if the skewer 91 is directly inserted into the end of the dough strip, the tip of the dough strip will be squeezed and damaged, and the pastry feature of "pointed ends of the skewer bun" cannot be fully presented. Therefore, in order to avoid damaging the tip of the skewered steamed bun and to improve the overall appearance of the skewered steamed bun, the device is provided with a vertical drive assembly 7 and a horizontal drive assembly 8 inside the frame body 1, and the vertical drive assembly 7 includes a vertical track 72 fixed on the bottom vertical frame 12, a vertical slider 72 is provided on the vertical track 72, a support rod 73 is provided on the vertical slider 72, a horizontal support seat 74 is provided on the top of the support rod 73, and a support cross bar 75 is provided on the horizontal support seat 74; a vertical lifting cylinder 76 is provided on the bottom support frame 14 on the frame body 1, and the connection portion between the bottom support frame 14 and the vertical lifting cylinder 76 is also provided with a long hole, which can realize fine-tuning of the vertical lifting cylinder 76 up and down; one end of the vertical lifting cylinder 76 is fixed on the support cross bar 75, and the vertical movement of the entire horizontal support seat 74 and the support cross bar 75 can be realized through the vertical lifting cylinder 76.

[0063] A horizontal driving assembly 8 is provided in conjunction with the horizontal support seat 74 and the supporting cross bar 75. The horizontal driving assembly 8 includes a horizontal track 84 arranged on the horizontal support seat 74, and a horizontal driving fixing plate 82 is vertically arranged on the supporting cross bar 75. The horizontal driving fixing plate 82 is provided with a long hole, and a horizontal driving cylinder 81 is fixed through the long hole and horizontal fine adjustment can be achieved. The moving end of the horizontal driving cylinder 81 is connected to a connecting plate 83, and the driving of the connecting plate 83 is achieved by the horizontal driving cylinder 81. The top of the connecting plate 83 is fixed on the horizontal insertion tray 4.

[0064] A supporting platform 41 is provided on the horizontal track 84, and a positioning retaining frame 42 is provided on the supporting platform 41. A plurality of brackets 421 are provided on the positioning retaining frame 42 to cooperate with the picks 91 on the pick rack 9; the top surface of the supporting platform 41 is lower than the bottom surface of the horizontal pick holder 4, and it cooperates with the horizontal track 84 on the horizontal support seat 74 through the rear horizontal slider 45, and a tension spring 43 is provided between the rear horizontal slider 45 and the lifting frame.

[0065] After the above structure is set, when the device is in operation, an external person puts the strip dough into the lower forming groove 21 of the lower mold 2. The skewer rack 9 is placed on the horizontal skewer support 4, and the skewers 91 of the skewer rack 9 are correspondingly placed in the brackets 421 of the positioning holder 42.

[0066] After the strip of dough is placed, the driving motor 30 is operated to transport the lower mold 2 horizontally to the bottom of the upper mold 6 at a relatively fast speed and position it still; the vertical driving assembly 7 drives the horizontal skewer support 4 to rise, so that the height of the skewer 91 of the skewer rack 9 is higher than the height of the strip of dough in the lower forming groove 21 of the lower mold 2, and then the horizontal skewer support 4 realizes the horizontal drive of the skewer rack 9 through the horizontal driving assembly 8. During the driving, the front horizontal slider 44 at the bottom of the horizontal skewer support 4 squeezes the rear horizontal slider 45, pushing the support 41 and the positioning holder 42 to move the skewer 91 synchronously. The purpose of this structural setting is to ensure that the skewer 91 moves horizontally when it is horizontally inserted into the steamed bun, and the positioning is achieved by the positioning holder 42.

[0067] The skewer 91 stops moving at a height of 5 cm and 2 to 3 cm from the end of the dough strip, and the vertical drive assembly 7 drives the horizontal skewer support 4 to fall, and the skewer rack 9 falls synchronously to a position slightly above the center of the diameter of the dough strip, and then the upper mold 6 falls. On the one hand, the upper mold 6 and the lower mold 2 press the dough strip in the best position, and on the other hand, the upper mold 6 presses the skewer 91 from the side of the end of the dough strip into the dough strip, and makes the skewer 91 basically near the central axis of the dough strip. The skewer rack 9 is inserted into the dough strip in the horizontal direction for the second time, and after the skewer 91 moves to the set ideal depth position, the upper mold 6 is lifted, and at the same time, the skewer rack 9 squeezes the drive cylinder 5 to open, and the horizontal drive assembly 8 drives the horizontal skewer support 4 to withdraw horizontally and reset to the original position. After the horizontal skewer support 4 is withdrawn, the operator takes out the skewer rack 9 and the skewered buns in the lower forming groove 21. A tension spring 43 is provided between the rear horizontal slider 45 at the bottom of the support 41 and the lifting frame, and the rear horizontal slider 45 is withdrawn and reset by the tension spring 43. The above realizes the automatic completion of the skewer insertion action of the single skewer rack 9 on the strip dough.

[0068] The lifting operation of the vertical drive assembly 7 is coordinated with the multi-stage horizontal movement of the horizontal drive assembly 8, which ensures that the skewer steamed buns have pointed ends, and can achieve the same perfect skewer insertion effect as a skilled worker manually inserting skewers. It more closely imitates the manual skewer insertion action in the prior art, has high efficiency and high precision, and can realize standardized skewer insertion and large-scale production of skewer steamed buns.

[0069] Embodiment 2, as Figure 1-14 As shown, another embodiment of the present application provides an automatic skewer-inserting machine for steamed buns, comprising:

[0070] A frame 1, wherein the frame 1 is provided with a lifting mechanism, and the lifting mechanism is provided with a lifting part that can move up and down;

[0071] 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 molding groove 67, and the lower mold 2 is provided with at least one lower molding groove 21;

[0072] A horizontal stick insertion support platform 4, wherein the horizontal stick insertion support platform 4 is provided with a supporting portion for supporting the stick rack 9;

[0073] A horizontal driving assembly 8, wherein the horizontal driving assembly 8 is configured to drive the horizontal signature inserting support platform 4 to move horizontally back and forth;

[0074] The vertical drive assembly 7 and the horizontal drive assembly 8 are configured to drive the horizontal sign insertion support table 4 to move up and down reciprocatingly;

[0075] The upper mold 6 is disposed on the lifting portion, and the lower mold 2 is disposed on the frame 1 and is located below the lower mold 2 .

[0076] Specifically, the horizontal drive assembly 8 is configured to drive the horizontal sign insertion support 4 to move horizontally back and forth and switch to a first position, a second position and a third position; along the direction of movement of the horizontal sign insertion support 4 toward the lower mold 2, the horizontal distance of the horizontal sign insertion support 4 from the lower mold 2 decreases successively when it is in the first position, the second position and the third position.

[0077] Based on the operation process of the above embodiment 1, it can be known that the operator puts the strip dough of the steamed bun 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 pressing 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] Furthermore, the vertical drive assembly 7 includes a vertical rail 72, a lifting frame and a vertical lifting cylinder 76; the vertical rail 72 is arranged on the frame body 1, the lifting frame is slidably arranged on the vertical rail 72, 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 rail 72; wherein, the horizontal drive assembly 8 is arranged on the lifting frame.

[0082] Specifically, referring to the description in the above-mentioned embodiment 1, the vertical drive assembly 7 guides the lifting frame to move up and down through the vertical rail 72. The lifting frame includes a vertical slider 72, a support rod 73, a horizontal support seat 74 and a support cross bar 75. The vertical slider 72 is slidably provided on each of the vertical slide rails 72. The support rod 73 is fixedly provided on the vertical slider 72. The top of the support rod 73 is provided with a horizontal support seat 74. A support cross bar 75 is provided between the two horizontal support seats 74. The horizontal drive assembly 8 is provided on the support cross bar 75. In addition, two vertical rails 72 arranged opposite to each other are provided on the frame body 1. The specific process of the vertical drive assembly 7 driving the horizontal drive assembly 8 and the horizontal insertion tray 4 to rise and fall will not be described in detail here.

[0083] Furthermore, the horizontal driving assembly 8 includes a horizontal track 84 and a horizontal driving cylinder 81, and the horizontal track 84 and the horizontal driving cylinder 81 are respectively arranged on the lifting frame; the horizontal sign insertion tray 4 is slidably arranged on the horizontal track 84, and the horizontal driving cylinder 81 is connected to the horizontal sign insertion tray 4 and is configured to drive the horizontal sign insertion tray 4 to move horizontally back and forth.

[0084] Specifically, the horizontal drive assembly 8 is provided with a horizontal track 84 to meet the sliding requirements of the horizontal sign insertion tray 4. The horizontal track 84 is provided with a front horizontal slider 44 that can slide back and forth. The horizontal sign insertion tray 4 is fixed on the front horizontal slider 44. The horizontal sign insertion tray 4 can slide back and forth under the guidance of the horizontal track 84.

[0085] Among them, the horizontal driving assembly 8 also includes a fixed plate 63 and a connecting plate 83, the fixed plate 63 is vertically arranged on the lifting frame, one end of the horizontal driving cylinder 81 is arranged on the fixed plate 63, and the connecting plate 83 is arranged on the horizontal insertion support 4 and connected to the other end of the horizontal driving cylinder 81.

[0086] In addition, a slidable positioning and retaining frame 42 is also provided on the horizontal rail 84 , a plurality of brackets 421 are provided on the positioning and retaining frame 42 , and a tension spring 43 is also provided between the positioning and retaining frame 42 and the lifting frame.

[0087] Specifically, a rear horizontal slider 45 that can slide back and forth is provided on the horizontal track 84, and the positioning holder 42 is provided on the rear horizontal slider 45. Driven by the horizontal drive cylinder 81, the lower horizontal stick insertion support 4 moves toward the lower mold 2 along the horizontal track 84 through the front horizontal slider 44, and 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 closer to the lower mold 2. Moreover, after the stick insertion operation is completed, the horizontal stick insertion support 4 returns to the original position, and after the stick holder 9 is taken out to take the strip dough out of the lower mold 2, the positioning holder 42 is also automatically reset under the action of the tension spring 43.

[0088] 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.

[0089] Specifically, the rotary conveyor 3 can drive the multiple lower molds 2 to move one by one to the bottom of the upper mold through the chain 33, and the chain 33 can be configured with two to better carry and support the lower mold 2. For the specific operation of the rotary conveyor 3, please refer to the first embodiment, which will not be repeated here.

[0090] In another embodiment of the present application, since the structures of the upper mold and the lower mold are the same in the prior art, after the molds are closed to extrude the strip of dough, it is easy for the dough to overflow at the connection between the two molds and then form flash, resulting in an unsightly appearance of the product. After being squeezed by the skewer, deformation problems will also occur, which ultimately leads to a poor appearance, quality and yield rate of the processed steamed buns. In addition, after the upper and lower mold surfaces in the document are abutted, the steamed buns will be squeezed during the skewer insertion process and will form flash or ridges at the edge of the steamed bun half-mold cavity, resulting in an uneven surface of the steamed bun after the skewer is inserted, which also seriously affects the appearance and quality of the skewer steamed buns after the skewer is inserted.

[0091] To this end, a plug-in groove 68 is also provided on the upper mold 6, and the plug-in groove 68 surrounds the outer side of the upper molding groove 67. The lower mold 2 is also provided with an outwardly protruding convex wall 24, and the convex wall 24 surrounds the outer side of the lower molding groove 21; wherein, after the upper mold 6 and the lower mold 2 are buckled together, the convex wall 24 is inserted into the plug-in groove 68.

[0092] Specifically, the upper mold 6 is additionally provided with a plug-in groove 68 on the outer side of the upper molding groove 67, and correspondingly, the lower molding groove 21 of the lower mold 2 is additionally provided with a convex wall 24, which is made of an elastic material (such as silicone or soft rubber). During use, after the upper mold 6 and the lower mold 2 are molded together, the convex wall 24 is inserted into the plug-in groove 68 to improve the matching of the upper mold 6 and the lower mold 2 after the molds are molded together, so as to improve the appearance quality of the strip dough.

[0093] Furthermore, a pointed wall 69 is formed between the plug-in groove 68 and the upper molding groove 67; the inner side surface of the convex wall 24 is connected to the inner wall of the lower molding groove 21; when the upper mold 6 and the lower mold 2 are closed, the bottom of the pointed wall 69 is against the inner side surface of the convex wall 24 or the inner wall of the lower molding groove 21.

[0094] Specifically, a sharp wall 69 is formed between the insertion groove 68 and the upper molding groove 67, and the sharp wall 69 is pressed against the inner side of the convex wall 24. In this way, the strip dough between the upper molding groove 67 and the lower molding groove 21 is further squeezed and shaped. When the strip dough is squeezed, the sharp wall 69 pressed against the inner side of the convex wall 24 can limit the dough from being squeezed out from between the upper molding groove 67 and the lower molding groove 21, so that the outer surface of the strip dough at the junction of the upper mold and the lower mold is smooth, thereby effectively reducing the generation of flash, and even preventing the generation of flash or edges, thereby improving the appearance and quality of the steamed buns.

[0095] In one embodiment, a notch 25 corresponding to the lower molding groove 21 is provided on the lower mold 2 ; when the upper mold 6 and the lower mold 2 are molded together, the notch 25 is configured to accommodate the skewers 91 on the skewers holder 9 .

[0096] Specifically, during the second stick insertion process, after the horizontal stick insertion support 4 moves from the first position to the second position, the stick 91 is located above the notch 25. After the upper mold 6 and the lower mold 2 are molded together, the stick 91 is pressed into the notch 25 to meet the second stick insertion process so that the stick 91 can be inserted into the strip of dough.

[0097] The convex wall 24 may be provided with a notch 25 , the notch 25 is adjacent to the edge of the side of the lower mold 2 , and the notch 25 is configured to accommodate the skewers 91 on the skewers holder 9 .

[0098] Furthermore, the upper mold 6 is provided with a signature pressing member corresponding to the notch 25 , and the signature pressing member is configured to press the signature 91 on the signature holder 9 into the corresponding notch 25 when the upper mold moves downward.

[0099] Specifically, during the process of inserting the skewer 91 , the skewer 91 of the skewer rack 9 moves to above the strip of dough of the lower mold 2 , and the horizontal skewer insertion support 4 descends and cooperates with the descent of the lower mold 2 to press the skewer 91 downward through the skewer pressing member, and the skewer 91 will be pressed into the notch 25 .

[0100] Among them, a pressing plate 60 is provided on the side of the upper mold 6 corresponding to the notch 25, and the pressing plate 60 serves as a signature pressing member. The lower edge of the pressing plate 60 is flush with the lower surface of the upper mold 6 or extends below the lower surface of the upper mold 6. The pressing plate 60 is configured to press the signature 91 of the signature rack 9 into the corresponding notch 25.

[0101] Specifically, during the process of inserting the skewers 91, the skewers 91 of the skewers holder 9 are moved to the top of the dough strip of the lower mold 2, and the horizontal skewers inserting support 4 is lowered and pressed down in coordination with the lower mold 2, and after the skewers 91 are pressed into the notch 25, the skewers 91 are pressed down by the lower mold 2, so that the skewers 91 are arranged in the center area of ​​the dough strip. In the secondary skewers inserting process, the skewers 91 can be inserted substantially along the center line of the dough strip, so as to improve the quality of the skewers inserted.

[0102] The technical solution of the utility model has the following technical effects compared with the prior art: by setting a horizontal driving assembly 8 and a vertical driving assembly 7, the vertical driving assembly 7 can drive the horizontal skewer insertion support platform 4 to move up and down. At the same time, the horizontal driving assembly 8 can drive the horizontal skewer insertion support platform 4 to switch and move between three positions. During the skewer insertion process, the vertical driving assembly 7 can first drive the horizontal skewer insertion support platform 4 to rise, and then the horizontal driving assembly 8 can drive the horizontal skewer insertion support platform 4 to move to the second position, so that the skewer 91 on the skewer rack 9 moves to the top of the lower mold 2. At this time, the vertical projection of the skewer 91 partially overlaps with the end of the strip dough in the lower forming groove 21. Then, the vertical driving assembly 7 drives the horizontal skewer insertion support platform 4 to descend, and at the same time, the upper mold 6 is also driven by the lifting mechanism. The stick 91 is then pushed down into the end of the dough strip, and then the horizontal stick insertion support 4 is moved to the third position so that the stick 91 can be inserted into the appropriate position in the dough strip. The above-mentioned step-by-step stick insertion method is adopted, so that the stick 91 is not directly inserted from the end face of the dough strip, causing the end of the dough strip to be axially compressed and deformed. The head of the stick is first pressed into the dough strip from the side of the dough strip by the upper mold 6 and then inserted. During the stick insertion process, the end of the dough strip is constrained by the upper mold 6 and the lower mold 2 to maintain the same shape, and 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 with the stick inserted is more beautiful, so that the product quality and yield rate of the steamed buns can be improved while meeting the requirements of automated stick insertion production.

[0103] In addition, the upper mold 6 is provided with a plug-in groove 68 and a sharp wall 69, and the lower mold 2 is provided with a convex wall 24, the inner side of the convex wall 24 is connected to the inner wall of the lower molding groove 21; when the upper mold 6 and the lower mold 2 are molded together, the top of the sharp wall 69 is pressed against the inner side of the convex wall 24 or the inner wall of the lower molding groove 21. The above-mentioned arrangement of the mold can make the outer surface of the strip dough at the junction of the upper mold 6 and the lower mold 2 smooth, reduce the flash or edges, and improve the appearance and quality of the steamed buns.

[0104] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. 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 mold assembly, the mold assembly comprising an upper mold and a lower mold, the upper mold is provided with at least one upper molding groove, and the lower mold is provided with at least one lower molding groove; 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 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; A vertical drive assembly, wherein the horizontal drive assembly is configured to drive the horizontal sign insertion tray to move up and down reciprocatingly; Wherein, the upper mold is arranged on the lifting part, and the lower mold is arranged on the frame and is located below the lower mold.

2. The automatic skewer-inserting machine for steamed buns according to claim 1, characterized in that: The vertical drive assembly includes a vertical track, a lifting frame and a vertical lifting cylinder; The vertical track is arranged on the frame body, the lifting frame is slidably arranged on the vertical track, the vertical lifting cylinder is arranged on the frame body, the lifting frame is connected to the vertical lifting cylinder, and the vertical lifting cylinder is configured to drive the lifting frame to move up and down along the vertical track; Wherein, the horizontal driving assembly is arranged on the lifting frame.

3. The automatic stick-inserting machine for steamed buns according to claim 2, characterized in that: The horizontal driving assembly includes a horizontal track and a horizontal driving cylinder, and the horizontal track and the horizontal driving cylinder are respectively arranged on the lifting frame; The horizontal sign-insertion support platform is slidably disposed on the horizontal track, and the horizontal driving cylinder is connected to the horizontal sign-insertion support platform and is configured to drive the horizontal sign-insertion support platform to move horizontally back and forth.

4. The automatic skewer-inserting machine for steamed buns according to claim 3, characterized in that: A slidable positioning and retaining frame is also provided on the horizontal track, a plurality of brackets are provided on the positioning and retaining frame, and a tension spring is also provided between the positioning and retaining frame and the lifting frame.

5. The automatic skewer-inserting machine for steamed buns according to claim 1, characterized in that: The frame is provided with a rotating conveying device, which includes a driving motor, a plurality of sprockets and a chain. The sprockets are rotatably provided on the frame, the chain is wound around the plurality of sprockets, the driving motor is drivingly connected to at least one of the sprockets, and the chain is configured to drive the lower mold to cyclically move on the frame to below the upper mold; And / or, the horizontal skewers inserting support is provided with a squeezing drive cylinder, the squeezing drive cylinder is provided with a squeezing contact that can move up and down, and a pressing space for pressing the skewers rack is formed between the squeezing contact and the horizontal skewers inserting support; And / or, the lower mold is made of elastic material.

6. The automatic skewer-inserting machine for steamed buns according to any one of claims 1 to 5, characterized in that: The upper mold is also provided with an inserting groove, and the inserting groove surrounds the outer side of the upper molding groove; The lower mold is also provided with an outwardly convex wall, and the convex wall surrounds the outer side of the lower molding groove; Wherein, when the upper mold and the lower mold are clamped, the convex wall is inserted into the plug-in groove.

7. The automatic skewer-inserting machine for steamed buns according to claim 6, 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 molding groove; when the upper mold and the lower mold are closed, the bottom of the pointed wall is against the inner side surface of the convex wall or the inner wall of the lower molding groove.

8. The automatic skewer-inserting machine for steamed buns according to any one of claims 1 to 5, characterized in that: The lower mold 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 the skewers on the skewers rack.

9. The automatic skewer-inserting machine for steamed buns according to claim 8, characterized in that: The lower mold is also provided with an outwardly protruding convex wall, the convex wall surrounds the outer side of the lower molding groove, and the notch is provided on the convex wall; And / or, a signature pressing member corresponding to the notch is disposed on the upper mold, and the signature pressing member is configured to press the signatures on the signature rack into the corresponding notch when the upper mold moves downward.

10. The automatic skewer-inserting machine for steamed buns according to claim 9, characterized in that: The pressing member is a pressing plate, and the lower edge of the pressing plate is flush with the lower surface of the upper mold or extends to below the lower surface of the upper mold.

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