A turnover demoulding method

Abstract

The present invention discloses a flipping and demolding system and method. The system includes a conveying mechanism, a flipping mechanism, a discharging mechanism, a detection mechanism, and a controller. The flipping mechanism includes a flipping drum with a flipping cavity inside, a guiding assembly, a flipping driving member, and a fixed frame. At least one flipping catch is provided in the flipping cavity. The flipping drum is connected to the fixed frame through the guiding assembly. Both the detection mechanism and the flipping driving member are connected to the flipping drum. The discharging end of the conveying mechanism is connected to the input end of the discharging mechanism through the flipping catch. The flipping driving member, the flipping mechanism, the discharging mechanism, and the detection mechanism are all connected to the controller. In the present invention, the full-load mold plate is conveyed to the flipping catch through the conveying mechanism. The flipping driving member drives the flipping drum to flip from the first position to the second position along the movement track defined by the guiding assembly, so that the food falls off the mold plate onto the discharging mechanism, thereby realizing the automatic, rapid feeding, discharging, and demolding of the mold plate.

Description

Technical Field

[0001] The present invention relates to baking food production equipment, and particularly to a turnover demoulding method. Background Art

[0002] Baked foods (such as toast, cakes, etc.) generally need to be loaded and pre-shaped using a mold plate (a mold with a certain shape), and then placed in an oven together with the mold plate for baking. After baking, the food needs to be demoulded. In the traditional production process of baked foods, most of the demoulding of food is manual. In actual application, the demoulding process needs to face foods with different types, sizes, and shapes. Manual demoulding requires a large amount of manpower, has a very low efficiency, and there are also hygiene and cleaning problems.

[0003] For example, Chinese Patent: CN111838216A discloses a spatula-type demoulding machine for baking, which includes a frame. A space is formed inside the frame. Inside this space, a first conveyor line with an angle less than 45° is built in the left-right direction with the frame as the support and the horizontal plane as the standard. Similarly, inside this space, a motor is installed and fixed with the left end of the frame as the support point in the left-right direction, and a spatula plate demoulding execution mechanism is built. The driven end of the spatula plate demoulding execution mechanism forms a nozzle, approaching the middle of the first conveyor line and forming an angle greater than 90° with the first conveyor line. A connection is established between the first conveyor line and the spatula plate demoulding execution mechanism through a spatula swing mechanism of the demoulding machine. However, this patent still has the following problems: ① The application range is too small and is only applicable to flat mold plates; ② It is easy to cause the food in the mold to be damaged during demoulding. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a turnover demoulding system, which can solve the problems of large manpower consumption, very low efficiency, and worrying hygiene and cleaning in the demoulding process of the prior art.

[0005] Another purpose of the present invention is to provide a turnover demoulding method, which can solve the problems of large manpower consumption, very low efficiency, and worrying hygiene and cleaning in the demoulding process of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A flipping and demoulding system, comprising a conveying mechanism, a flipping mechanism, a discharging mechanism, a detection mechanism and a controller. The flipping mechanism includes a flipping drum with a flipping cavity inside, a guiding component, a flipping driving part and a fixed frame. The flipping cavity is provided with at least one flipping positioner. The flipping drum is connected to the fixed frame through the guiding component. Both the detection mechanism and the flipping driving part are connected to the flipping drum. The discharging end of the conveying mechanism is connected to the input end of the discharging mechanism through the flipping positioner. The flipping driving part, the flipping mechanism, the discharging mechanism and the detection mechanism are all connected to the controller;

[0008] The flipping driving part is used to drive the flipping positioner to be in one of a first position and a second position;

[0009] The guiding component is used to define the movement track of the flipping drum;

[0010] The first position is the position where the flipping positioner is connected to the discharging end of the conveying mechanism;

[0011] The second position is the position where the flipping positioner is connected to the input end of the discharging mechanism.

[0012] Preferably, the flipping cavity is provided with two flipping positioners, and the two flipping positioners are symmetrically arranged about the central axis of the flipping drum.

[0013] Preferably, the flipping cavity further includes an adsorption unit and a plurality of bottom plates. The bottom plates are arranged on both sides of the adsorption unit. The adsorption unit is arranged in the flipping positioner, and the adsorption unit is connected to the controller.

[0014] Preferably, the guiding component includes a plurality of pairs of flipping plates and guiding wheels arranged along the length direction of the flipping drum. The flipping plates are fixedly connected to the flipping drum, the guiding wheels are fixedly connected to the fixed frame, and the flipping plates are rotatably connected to the guiding wheels.

[0015] Preferably, the flipping driving part includes a flipping motor, a fixed sprocket, an adjusting sprocket, a flipping sprocket and a transmission unit. The flipping sprocket is fixedly connected to the flipping drum. The axle core of the adjusting sprocket is connected with a swing arm. A rotating shaft is connected between the middle part of the swing arm and the fixed frame. One end of the swing arm far away from the adjusting sprocket is connected with a lead screw. An adjusting nut is connected between the end of the lead screw far away from the swing arm and the fixed frame. The output end of the flipping motor, the fixed sprocket, the flipping sprocket and the adjusting sprocket are sequentially connected to the transmission unit, and the flipping motor is connected to the controller.

[0016] Preferably, the conveying mechanism includes a conveying rack, a loading conveyor belt, a plurality of conveying push plates, a pressing bracket and a pressing plate. The conveying push plates are arranged on the loading conveyor belt along the conveying direction. The loading conveyor belt is connected to the conveying rack. The pressing plate is arranged above the conveyor belt. The conveying rack is connected to the pressing plate through the pressing bracket. The loading conveyor belt is connected to the controller.

[0017] Preferably, the discharging mechanism includes a cake-turning conveyor belt, a discharging conveyor belt, a tray-out conveyor belt and a height-adjusting assembly. The cake-turning conveyor belt is arranged between a first position and a second position through the height-adjusting assembly. The conveying end of the cake-turning conveyor belt is located above the discharging conveyor belt. The height-adjusting assembly is connected to the fixed rack. The tray-out conveyor belt is connected to the discharging end of the conveying mechanism through a turning position in the first position.

[0018] Preferably, the height-adjusting assembly includes at least one lifting cylinder. The lifting cylinder is connected to the fixed rack. The output end of the lifting cylinder is connected to the cake-turning conveyor belt.

[0019] Preferably, the detection mechanism includes at least one detection bracket. A first sensor for detecting the turning position in the second position is arranged at the upper end of the detection bracket. A second sensor for detecting the demolding condition is arranged below the first sensor. A third sensor is arranged between the second sensor and the discharging mechanism. A fourth sensor is arranged at one end of the third sensor away from the discharging mechanism. The first sensor, the second sensor, the third sensor and the fourth sensor are all connected to the controller.

[0020] In order to achieve the second above object, the technical solution adopted by the present invention is as follows:

[0021] A flipping and demolding method, applied to the controller of the above flipping and demolding system, includes the following steps:

[0022] S1: Convey the fully loaded mold tray to the turning position at the first position through the conveying mechanism to drive the empty mold tray out of the turning cavity;

[0023] S2: Drive the turning drum to flip along the movement track defined by the guiding assembly through the flipping driving member, so that the turning position loaded with the fully loaded mold tray moves to the second position;

[0024] S3: Detect the demolding condition of the mold tray at the second position through the detection mechanism;

[0025] S4: Judge whether the mold tray at the second position is demolded. If not, send a warning to the outside. If so, execute S5;

[0026] S5: Drive the flipping drum to flip along the movement track defined by the guiding component through the flipping driving member, so that the flipping position for loading the module with no load moves to the first position.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: The fully loaded mold tray is conveyed into the flipping position in the flipping drum through the conveying mechanism, so that the flipping driving member drives the flipping drum to flip along the movement track defined by the guiding component, moves the fully loaded mold tray from the first position to the second position, and at the same time moves the mold tray with no load from the second position to the first position. By using the self-weight of the food, it falls off the mold tray onto the discharging mechanism, thereby realizing the automatic, fast loading, discharging and demolding of the mold tray. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the flipping and demolding system described in the present invention.

[0029] Figure 2 It is a schematic structural diagram of the conveying mechanism described in the present invention.

[0030] Figure 3 It is a schematic structural diagram of the flipping mechanism described in the present invention.

[0031] Figure 4 It is a schematic structural diagram of the detection mechanism described in the present invention.

[0032] Figure 5 It is a schematic structural diagram of the flipping driving member described in the present invention.

[0033] Figure 6 It is a schematic structural diagram of the discharging mechanism described in the present invention.

[0034] In the figure: 1 - conveying mechanism; 11 - conveying machine frame; 12 - loading conveyor belt; 13 - conveying push plate; 14 - pressing support; 15 - pressing plate; 2 - flipping mechanism; 21 - flipping drum; 211 - flipping cavity; 212 - flipping position; 213 - adsorption unit; 214 - bottom plate; 22 - guiding component; 221 - flipping plate; 222 - guiding wheel; 23 - flipping driving member; 231 - flipping motor; 232 - fixed sprocket; 233 - adjusting sprocket; 234 - flipping sprocket; 235 - transmission unit; 236 - swing arm; 237 - lead screw; 238 - adjusting nut; 239 - rotating shaft; 24 - fixed machine frame; 3 - discharging mechanism; 31 - pancake flipping conveyor belt; 32 - discharging conveyor belt; 33 - mold tray discharging conveyor belt; 34 - height adjusting component; 4 - detection mechanism; 41 - detection support; 42 - first sensor; 43 - second sensor; 44 - third sensor; 45 - fourth sensor; 5 - alarm mechanism. Detailed Embodiments

[0035] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Next, in conjunction with the accompanying drawings and specific embodiments, the present invention will be further described:

[0039] In the present invention, the controller can be selected from devices with data processing functions such as MCU, PLC controller, and single-chip microcomputer. The shape of the flipping drum 21 is not limited to a columnar shape, and can also be a cube, a cuboid, a cone, etc. The adsorption unit 213 includes one or more of an electromagnet and a negative pressure suction cup. The first sensor 42, the second sensor 43, the third sensor 44, and the fourth sensor 45 can be selected from one or more of monitoring devices such as infrared sensors, acoustic wave sensors, or electric eyes.

[0040] Embodiment 1:

[0041] As Figures 1-6 shown, a flipping and demolding system includes a conveying mechanism 1, a flipping mechanism 2, a discharging mechanism 3, a detection mechanism 4, an alarm mechanism 5, and a controller. The flipping mechanism 2 includes a flipping drum 21 with a flipping cavity 211 inside, a guiding component 22, a flipping driving member 23, and a fixed frame 24. The flipping cavity 211 is provided with at least one flipping catch 212. The flipping drum 21 is connected to the fixed frame 24 through the guiding component 22. Both the detection mechanism 4 and the flipping driving member 23 are connected to the flipping drum 21.

[0042] The discharge end of the conveying mechanism 1 is connected to the input end of the discharging mechanism 3 through the flipping clamping position 212.

[0043] The flipping driving member 23, the flipping mechanism 2, the discharging mechanism 3, the alarm mechanism 5 and the detection mechanism 4 are all connected to the controller.

[0044] The flipping driving member 23 is used to drive the flipping clamping position 212 to be in one of the first position and the second position.

[0045] The guiding assembly 22 is used to define the movement track of the flipping drum 21; the first position is the position where the flipping clamping position 212 is connected to the discharge end of the conveying mechanism 1; the second position is the position where the flipping clamping position 212 is connected to the input end of the discharging mechanism 3. In this embodiment, the flipping drum 21 is a cylindrical structure with a hollow internal structure, and the hollow internal structure is set as the flipping cavity 211. The edge of the flipping cavity 211 is recessed towards the outer surface of the flipping drum 21 to form the flipping clamping position 212. Preferably, there are two flipping clamping positions 212 provided in the flipping cavity 211, and the two flipping clamping positions 212 are centrosymmetric with each other around the central axis of the flipping drum 21. Therefore, at any one time, there is only one flipping clamping position 212 in the first position and one flipping clamping position 212 in the second position. The first position is directly below the second position. The flipping clamping position 212 in the first position obtains the full-load mold plate conveyed by the conveying mechanism 1. At the same time, the mold plate in the flipping clamping position 212 in the second position is in the demolding process. That is to say, feeding and demolding are carried out synchronously, improving work efficiency.

[0046] Preferably, the flipping cavity 211 further includes an adsorption unit 213 and a plurality of bottom plates 214. The bottom plates 214 are arranged on both sides of the adsorption unit 213. The adsorption unit 213 is arranged in the flipping clamping position 212, and the adsorption unit 213 is connected to the controller. In this embodiment, an adsorption unit 213 for adsorbing the mold plate is arranged in the middle of the bottom of the flipping clamping position 212. The bottom plates 214 are connected to both sides of the adsorption unit 213. During the feeding and adsorption process, the bottom plates 214 are in contact with the mold plate, and the adsorption unit 213 only plays an adsorption role, so that the mold plate is fixed in the flipping clamping position 212, so that the mold plate can be tightly adsorbed in the flipping clamping position 212 during the flipping process, avoiding being downloaded or thrown out. In this embodiment, the mold plate is used to load toast into the baking device for baking, so the mold plate is generally made of metal material. Preferably, the adsorption unit 213 includes one or more of an electromagnet and a negative pressure suction cup. Further, guardrails are arranged on both sides of the flipping clamping position 212, and the outer surface of the guardrails is wrapped with a protective layer to prevent the mold plate from directly colliding with the flipping clamping position 212 during feeding.

[0047] Preferably, the guiding assembly 22 includes several pairs of turning plates 221 and guiding wheels 222 arranged along the length direction of the turning drum 21. The turning plates 221 are fixedly connected to the turning drum 21, the guiding wheels 222 are fixedly connected to the fixed frame 24, and the turning plates 221 are rotatably connected to the guiding wheels 222. In this embodiment, the turning plates 221 can be annular and sleeved on the outer surface of the turning drum 21. Further, the number of the turning plates 221 is two, which are respectively sleeved at both ends of the turning drum 21. By guiding and limiting both ends of the turning drum 21, the turning drum 21 can be more stable and reliable during the turning process, and the probability of shaking is reduced. Preferably, the edge of the turning plate 221 is slidably connected to the guiding wheel 222.

[0048] Preferably, the turning driving member 23 includes a turning motor 231, a fixed sprocket 232, an adjusting sprocket 233, a turning sprocket 234 and a transmission unit 235. The turning sprocket 234 is fixedly connected to the turning drum 21. The axis of the adjusting sprocket 233 is connected with a swing arm 236. A rotating shaft 239 is connected between the middle of the swing arm 236 and the fixed frame 24. One end of the swing arm 236 far from the adjusting sprocket 233 is connected with a lead screw 237. An adjusting nut 238 is connected between the end of the lead screw 237 far from the swing arm 236 and the fixed frame 24. The output end of the turning motor 231, the fixed sprocket 232, the turning sprocket 234 and the adjusting sprocket 233 are sequentially connected to the transmission unit 235, and the turning motor 231 is connected to the controller. In this embodiment, the transmission unit 235 can select transmission devices such as belts and chains. Specifically, the chain sequentially passes through the output end of the turning motor 231, the fixed sprocket 232, the turning sprocket 234 and the adjusting sprocket 233 to form a closed chain loop. The turning sprocket 234 can be annular and sleeved on the outer surface of the turning drum 21 and is arranged between the two turning plates 221. During turning, the turning motor 231 drives the turning sprocket 234 to drive the turning drum 21 to turn through the transmission unit 235, so that the turning clamping position 212 is in the first position or the second position. Further, according to the tightness of the transmission unit 235, the distance between the adjusting nut 238 and the swing arm 236 is adjusted through the lead screw 237, and then the distance between the adjusting sprocket 233 and the output end of the turning motor 231, the fixed sprocket 232 and the adjusting sprocket 233 is adjusted, so as to adjust the tightness of the transmission unit 235.

[0049] Specifically, the conveying mechanism 1 includes a conveying machine frame 11, a loading conveyor belt 12, a plurality of conveying push plates 13, a pressing support 14 and a pressing plate 15. The conveying push plates 13 are arranged on the loading conveyor belt 12 along the conveying direction. The loading conveyor belt 12 is connected to the conveying machine frame 11. The pressing plate 15 is arranged above the loading conveyor belt 12. The conveying machine frame 11 is connected to the pressing plate 15 through the pressing support 14. The loading conveyor belt 12 is connected to the controller. Preferably, the plurality of conveying push plates 13 are arranged on the loading conveyor belt 12 at equal intervals along the conveying direction, so that the loading conveyor belt 12 forms a plurality of equally spaced conveying positions. When the loading conveyor belt 12 conveys the full-load mold plate to the flipping position 212 at the first position, the conveying push plate 13 provides a thrust to the full-load mold plate, so that the full-load mold plate pushes the empty mold plate that has been demolded in the flipping position 212 away from the flipping position 212 and enters the flipping position 212. In this embodiment, when the full-load mold plate enters the loading conveyor belt 12, a cooling device is used to blow cold air on the full-load mold plate, so that the toast in the mold plate is separated from the mold plate, and the pressing plate 15 arranged above the loading conveyor belt 12 blocks part of the toast from contracting sharply due to cooling and jumping up and falling out, affecting the normal demolding process.

[0050] Specifically, the discharging mechanism 3 includes a pancake turning conveyor belt 31, a discharging conveyor belt 32, a tray discharging conveyor belt 33 and a height adjusting component 34. The pancake turning conveyor belt 31 is arranged between a first position and a second position through the height adjusting component 34. The conveying end of the pancake turning conveyor belt 31 is located above the discharging conveyor belt 32. The height adjusting component 34 is connected to the fixed frame 24. The tray discharging conveyor belt 33 is connected to the discharging end of the conveying mechanism 1 through a turning clamping position 212 in the first position. Preferably, at least one turning clamping position 212 and the pancake turning conveyor belt 31 are arranged in the turning cavity 211. The projection of the turning clamping position 212 on the horizontal plane coincides with that of the pancake turning conveyor belt 31. Both ends of the pancake turning conveyor belt 31 are connected to the fixed bracket through the height adjusting component 34, that is, the pancake turning conveyor belt 31 does not rotate with the rotation of the turning roller 21. Specifically, the pancake turning conveyor belt 31 is arranged below the turning clamping position 212 in the second position. When the full-load mold tray is fixed in the turning clamping position 212 and turns to the second position with the turning roller 21, the toast in the mold tray falls onto the pancake turning conveyor belt 31 due to gravity, thus completing demoulding. Preferably, the height adjusting component 34 includes at least one lifting cylinder. The lifting cylinder is connected to the fixed frame 24, and the output end of the lifting cylinder is connected to the pancake turning conveyor belt 31. Preferably, the number of the lifting cylinders is at least one. During the demoulding process, the pancake turning conveyor belt 31 is lifted to a suitable height through the lifting cylinder to cooperate with the falling of the toast in the mold tray. In this embodiment, the number of the lifting cylinders is 2, which are respectively arranged at both ends of the pancake turning conveyor belt 31 to prevent the pancake turning conveyor belt 31 from tilting forward and backward and being unable to effectively convey the demoulded toast. Specifically, the pancake turning conveyor belt 31 is driven by the lifting cylinder to move towards the second position, so that the pancake turning conveyor belt 31 approaches the mold tray in the second position, avoiding too large a falling distance of the toast, which may cause the toast to be damaged, and preventing the toast from falling out of the pancake turning conveyor belt 31. Then, the pancake turning conveyor belt 31 conveys the toast to its conveying end, and by using the height difference between the conveying end of the pancake turning conveyor belt 31 and the discharging conveyor belt 32, the toast is turned over again when falling from the pancake turning conveyor belt 31 into the discharging conveyor belt 32, so that the front side of the toast faces upward, which is convenient for subsequent packaging.

[0051] Specifically, the detection mechanism 4 includes at least one detection bracket 41. At the upper end of the detection bracket 41, there is a first sensor 42 for detecting the flipping clamping position 212 in the second position. Below the first sensor 42, there is a second sensor 43 for detecting the demolding situation. Between the second sensor 43 and the discharging mechanism 3, there is a third sensor 44. At one end of the third sensor 44 away from the discharging mechanism 3, there is a fourth sensor 45. The first sensor 42, the second sensor 43, the third sensor 44, and the fourth sensor 45 are all connected to the controller. In this embodiment, the number of the detection brackets 41 is 2, which are respectively arranged at both ends of the flipping drum 21. Preferably, the first sensor 42, the second sensor 43, the third sensor 44, and the fourth sensor 45 can each be selected from one or more of monitoring devices such as infrared sensors, acoustic wave sensors, or electric eyes. Specifically, the detection end of the first sensor 42 is correspondingly arranged with the flipping clamping position 212 in the second position to determine whether there is a mold plate at the flipping clamping position 212 in the second position; the detection end of the second sensor 43 is correspondingly arranged with the plane where the opening of the mold plate in the second position is located, and it is determined whether the demolding is completed by detecting whether there is toast passing through this plane and the number of toasts passing through the plane; the detection end of the third sensor 44 is correspondingly arranged with the pancake conveyor belt 31 to detect whether the toast falls on the pancake conveyor belt 31; the fourth sensor 45 is correspondingly arranged with the edge of the pancake conveyor belt 31 to detect whether the toast deviates from the pancake conveyor belt 31. Further, an alarm mechanism 5 is also included, and the alarm mechanism 5 includes one or more of a warning light and a buzzer.

[0052] In this embodiment, the loading conveyor belt 12 conveys the fully loaded mold tray toward the flip roller 21, and at the same time, the external cooling device cools the fully loaded mold tray, and uses the pressure plate 15 to prevent part of the toast from shrinking rapidly and jumping up due to the cold. Under the push of the conveying push plate 13, the fully loaded mold tray enters the flip position 212 located in the first position, and pushes the empty mold tray originally placed on the flip position 212 to the out-disc conveyor belt 33, so that the empty mold tray is transported by the out-disc conveyor belt 33 for cleaning. When the fully loaded mold tray enters the flip position 212, the adsorption unit 213 adsorbs the fully loaded mold tray in the flip position 212. After the adsorption unit 213 adsorbs the fully loaded mold tray on the flipping position 212, the flipping motor 231 drives the flipping sprocket 234 to drive the flipping drum 21 to rotate 180 degrees in a short time (1 second) through the transmission unit 235, so that the flipping position 212 originally in the first position and the fully loaded mold tray are flipped to the second position (in the initial state, the opening direction of the mold tray is upward, and after flipping, the opening direction of the mold tray is downward, so that the toast in the mold tray can fall out), and the flipping position 212 in the second position and the empty mold tray are flipped to the first position (in the initial state, the opening direction of the mold tray is downward, and after flipping, the opening direction of the mold tray is upward, so that the mold tray entering the subsequent cleaning step does not need to be flipped again), that is, the first position and the second position are symmetrically arranged around the central axis of the flipping drum 21. During the flipping process, the flipping plates 221 at both ends of the flipping drum 21 are respectively rotatably connected to their corresponding guide wheels 222, so that the flipping drum 21 is more stable and reliable during the flipping process, and the probability of shaking is reduced. When the flipping position 212 originally in the first position and the fully loaded mold tray flip to the second position, the first sensor 42 in the detection mechanism 4 detects whether the mold tray is adsorbed in the flipping position 212 in the second position. If not, an alarm is issued to the outside world through the alarm mechanism 5. If yes, the second sensor 43 is used to detect whether the toast in the mold tray is demolded (i.e., falls off from the mold tray). If not, an alarm is issued to the outside world through the alarm mechanism 5. If yes, the third sensor 44 is used to detect whether the toast falls on the pancake turning conveyor belt 31. If yes, the demolding number is further counted to further determine whether the fully loaded mold tray is completely demolded. If not, the fourth sensor 45 is used to detect whether the position where the toast falls deviates from the pancake turning conveyor belt 31. If yes, an alarm is issued to the outside world through the alarm mechanism 5. In this embodiment, the demolding of the mold tray is monitored in all directions by multiple sensors to reduce labor costs and improve overall demolding efficiency. When the demolding situation detected by the detection mechanism 4 satisfies the following conditions at the same time, it can be determined that the demolding is completed:

[0053] ① The mold tray is adsorbed in the flipping position 212 at the second position;

[0054] ②The toast falls off the mold completely;

[0055] ③ All the toasts fall into the pancake turning conveyor belt 31;

[0056] ④There is no toast deviating from the pancake conveyor belt 31;

[0057] If the above conditions do not hold simultaneously, a warning is issued to the outside.

[0058] When the fully loaded mold plate is flipped to the second position, the lifting cylinder drives the pancake conveyor belt 31 to move towards the second position, so that the pancake conveyor belt 31 approaches the mold plate in the second position, avoiding too large a falling distance of the toast, which may cause the toast to be damaged, and reducing the probability of the toast falling out of the pancake conveyor belt 31. Then the pancake conveyor belt 31 conveys the toast to its conveying end, and by using the height difference between the conveying end of the pancake conveyor belt 31 and the discharging conveyor belt 32, the toast is flipped again during the process of falling from the pancake conveyor belt 31 into the discharging conveyor belt 32, so that the front side of the toast faces upward for subsequent packaging. When the demolding is completed, the flipping motor 231 drives the flipping sprocket 234 to drive the flipping drum 21 to rotate 180 degrees within a short time (1 second) through the transmission unit 235, so that the original flipping position 212 at the first position and the fully loaded mold plate are flipped to the second position (initially, the opening direction of the mold plate is upward, and after flipping, the opening direction of the mold plate is downward, so that the toast in the mold plate can fall out). The flipping position 212 at the second position and the empty mold plate are flipped to the first position (initially, the opening direction of the mold plate is downward, and after flipping, the opening direction of the mold plate is upward, so that the mold plate entering the subsequent cleaning link does not need to be flipped again). And under the push of the conveying push plate 13, the fully loaded mold plate enters the flipping position 212 at the first position, and the empty mold plate originally placed on the flipping position 212 is pushed to the discharging conveyor belt 33, so that the empty mold plate is conveyed by the discharging conveyor belt 33 for cleaning.

[0059] Embodiment 2:

[0060] A flipping and demolding method is applied to the controller of the flipping and demolding system described in Embodiment 1, and includes the following steps:

[0061] S1: The fully loaded mold plate is conveyed to the flipping position 212 at the first position through the conveying mechanism 1 to drive the empty mold plate to leave the flipping cavity 211;

[0062] Specifically, the feeding conveyor belt 12 conveys the fully loaded mold trays towards the flipping drum 21. Meanwhile, an external cooling device cools the fully loaded mold trays, and the pressing plate 15 blocks some of the toast from shrinking sharply due to the cold and jumping up. Pushed by the conveying push plate 13, the fully loaded mold trays enter the flipping slot 212 at the first position, and push the empty mold trays originally placed on the flipping slot 212 onto the discharging conveyor belt 33, so that the empty mold trays are conveyed by the discharging conveyor belt 33 for cleaning. When the fully loaded mold trays enter the flipping slot 212, the adsorption unit 213 adsorbs the fully loaded mold trays in the flipping slot 212.

[0063] S2: The flipping driving member 23 drives the flipping drum 21 to flip along the movement trajectory defined by the guiding assembly 22, so that the flipping slot 212 loaded with the fully loaded mold trays moves to the second position.

[0064] Specifically, after the adsorption unit 213 adsorbs the fully loaded mold trays in the flipping slot 212, the flipping motor 231 drives the flipping sprocket 234 through the transmission unit 235 to drive the flipping drum 21 to rotate 180 degrees within a short time (1 second), so that the flipping slot 212 and the fully loaded mold trays originally in the first position flip to the second position (initially, the opening direction of the mold tray is upward, and after flipping, the opening direction of the mold tray is downward, so that the toast in the mold tray can fall out). The flipping slot 212 and the empty mold trays in the second position flip to the first position (initially, the opening direction of the mold tray is downward, and after flipping, the opening direction of the mold tray is upward, so that the mold trays entering the subsequent cleaning process do not need to be flipped again). That is, the first position and the second position are centrosymmetrically arranged around the central axis of the flipping drum 21. During the flipping process, the flipping plates 221 at both ends of the flipping drum 21 are respectively rotatably connected to the corresponding guiding wheels 222, so that the flipping drum 21 is more stable and reliable during the flipping process, reducing the probability of shaking.

[0065] S3: The detection mechanism 4 detects the demolding condition of the mold trays in the second position.

[0066] Specifically, when the flipping clamping position 212 that was originally in the first position and the full mold plate are flipped to the second position, the first sensor 42 in the detection mechanism 4 detects whether the mold plate is adsorbed in the flipping clamping position 212 in the second position. If not, an alarm is sent to the outside through the alarm mechanism 5. If so, the second sensor 43 detects whether the toast in the mold plate is demolded (i.e., falls off the mold plate). If not, an alarm is sent to the outside through the alarm mechanism 5. If so, the third sensor 44 detects whether the toast falls on the pancake conveyor belt 31. If so, the demolding quantity is further counted to further determine whether the full mold plate is completely demolded. If not, the fourth sensor 45 detects whether the position where the toast drops deviates from the pancake conveyor belt 31. If so, an alarm is sent to the outside through the alarm mechanism 5. In this embodiment, all-round monitoring of the mold plate demolding is carried out through multiple sensors to reduce labor costs and improve the overall demolding efficiency.

[0067] S4: Determine whether the mold plate in the second position is demolded. If not, give a warning to the outside. If so, execute S5;

[0068] Specifically, when the demolding conditions detected by the detection mechanism 4 simultaneously meet the following conditions, it can be determined that the demolding is completed:

[0069] ⑤ The mold plate is adsorbed in the flipping clamping position 212 in the second position;

[0070] ⑥ All the toast has fallen off the mold plate;

[0071] ⑦ All the toast has fallen into the pancake conveyor belt 31;

[0072] ⑧ No toast deviates from the pancake conveyor belt 31;

[0073] If the above conditions do not hold simultaneously, a warning is given to the outside.

[0074] S5: Drive the flipping drum 21 to flip along the movement track defined by the guiding component 22 through the flipping driving member 23, so that the flipping clamping position 212 loaded with the empty module moves to the first position.

[0075] Specifically, when the full mold plate is flipped to the second position, the pancake conveyor belt 31 is driven by the lifting cylinder to move towards the second position, so that the pancake conveyor belt 31 approaches the mold plate in the second position, avoiding excessive falling distance of the toast, which may cause the toast to be damaged, and reducing the probability of the toast falling out of the pancake conveyor belt 31. Then, the pancake conveyor belt 31 conveys the toast to its conveying end, and by using the height difference between the conveying end of the pancake conveyor belt 31 and the discharging conveyor belt 32, the toast is flipped again when it falls from the pancake conveyor belt 31 into the discharging conveyor belt 32, so that the front side of the toast faces upward for subsequent packaging. After demoulding, the flipping motor 231 drives the flipping sprocket 234 through the transmission unit 235 to drive the flipping drum 21 to rotate 180 degrees within a short time (1 second), so that the original flipping clamping position 212 at the first position and the full mold plate are flipped to the second position (initially, the opening direction of the mold plate is upward, and after flipping, the opening direction of the mold plate is downward so that the toast in the mold plate can fall out). The flipping clamping position 212 at the second position and the empty mold plate are flipped to the first position (initially, the opening direction of the mold plate is downward, and after flipping, the opening direction of the mold plate is upward so that the mold plate entering the subsequent cleaning process does not need to be flipped again). Under the push of the conveying push plate 13, the full mold plate enters the flipping clamping position 212 at the first position, and the empty mold plate originally placed on the flipping clamping position 212 is pushed to the out-disk conveyor belt 33, so that the empty mold plate is conveyed by the out-disk conveyor belt 33 for cleaning.

[0076] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A turnover demoulding method, applied to the controller of a turnover demoulding system. The turnover demoulding system includes a conveying mechanism, a turnover mechanism, a discharging mechanism, a detection mechanism and a controller. The turnover mechanism includes a turnover drum with a turnover cavity inside, a guiding component, a turnover driving part and a fixed frame. The turnover cavity is provided with at least one turnover clamping position. The turnover drum is connected to the fixed frame through the guiding component. Both the detection mechanism and the turnover driving part are connected to the turnover drum. The discharging end of the conveying mechanism is connected to the input end of the discharging mechanism through the turnover clamping position. The turnover driving part, the turnover mechanism, the discharging mechanism and the detection mechanism are all connected to the controller; The turnover driving part is used to drive the turnover clamping position to be in one of the first position and the second position; The guiding component is used to define the movement track of the turnover drum; The first position is the position where the turnover clamping position is connected to the discharging end of the conveying mechanism; The second position is the position where the turnover clamping position is connected to the input end of the discharging mechanism; The turnover cavity further includes an adsorption unit and a plurality of bottom plates. The bottom plates are arranged on both sides of the adsorption unit. The adsorption unit is arranged in the turnover clamping position. The adsorption unit is connected to the controller; The conveying mechanism includes a conveying machine frame, a feeding conveyor belt, a plurality of conveying push plates, a pressing bracket and a pressing plate. The conveying push plates are arranged on the feeding conveyor belt along the conveying direction. The feeding conveyor belt is connected to the conveying machine frame. The pressing plate is arranged above the conveyor belt. The conveying machine frame is connected to the pressing plate through the pressing bracket. The feeding conveyor belt is connected to the controller. It is characterized in that, It includes the following steps: S1: Convey the fully loaded mold plate to the turnover clamping position at the first position through the conveying mechanism to drive the empty mold plate out of the turnover cavity; S2: Drive the turnover drum to turn along the movement track defined by the guiding component through the turnover driving part, so that the turnover clamping position loaded with the fully loaded mold plate moves to the second position; S3: Detect the demoulding condition of the mold plate at the second position through the detection mechanism; S4: Judge whether the mold plate at the second position is demoulded. If not, give a warning to the outside. If so, execute S5; S5: Drive the turnover drum to turn along the movement track defined by the guiding component through the turnover driving part, so that the turnover clamping position loaded with the empty module moves to the first position.

2. The turnover and demoulding method according to claim 1, characterized in that: The turnover cavity is provided with two turnover clamping positions, and the two turnover clamping positions are centrosymmetrically arranged around the central axis of the turnover drum.

3. The turnover demoulding method according to claim 1, characterized in that: The guiding component includes a plurality of pairs of turnover plates and guiding wheels arranged along the length direction of the turnover drum. The turnover plates are fixedly connected to the turnover drum. The guiding wheels are fixedly connected to the fixed frame. The turnover plates are rotatably connected to the guiding wheels.

4. The turnover demoulding method according to claim 1, characterized in that: The turnover driving part includes a turnover motor, a fixed sprocket, an adjusting sprocket, a turnover sprocket and a transmission unit. The turnover sprocket is fixedly connected to the turnover drum. The axle core of the adjusting sprocket is connected with a swing arm. A rotating shaft is connected between the middle part of the swing arm and the fixed frame. One end of the swing arm far away from the adjusting sprocket is connected with a lead screw. An adjusting nut is connected between the end of the lead screw far away from the swing arm and the fixed frame. The output end of the turnover motor, the fixed sprocket, the turnover sprocket and the adjusting sprocket are sequentially connected to the transmission unit. The turnover motor is connected to the controller.

5. The turnover demoulding method according to claim 1, characterized in that: The discharging mechanism includes a pancake turning conveyor belt, a discharging conveyor belt, a tray discharging conveyor belt and a height adjusting assembly. The pancake turning conveyor belt is arranged between a first position and a second position through the height adjusting assembly. The conveying end of the pancake turning conveyor belt is located above the discharging conveyor belt. The height adjusting assembly is connected to the fixed frame. The tray discharging conveyor belt is connected to the discharging end of the conveying mechanism through a turning clamping position in the first position.

6. The turnover and demoulding method according to claim 5, characterized in that: The height adjusting assembly includes at least one lifting cylinder. The lifting cylinder is connected to the fixed frame, and the output end of the lifting cylinder is connected to the pancake turning conveyor belt.

7. The turnover demoulding method according to claim 1, characterized in that: The detection mechanism includes at least one detection bracket. A first sensor for detecting the turning clamping position in the second position is arranged at the upper end of the detection bracket. A second sensor for detecting the demolding condition is arranged below the first sensor. A third sensor is arranged between the second sensor and the discharging mechanism. A fourth sensor is arranged at one end of the third sensor away from the discharging mechanism. The first sensor, the second sensor, the third sensor and the fourth sensor are all connected to the controller.

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