A baking tray receiving and sending machine

Abstract

The present invention relates to the field of food processing equipment, and in particular to a baking tray receiving and sending machine. The machine comprises: a frame, a first belt transmission mechanism for horizontally transmitting a baking tray stack in the X direction, a lifting and flipping mechanism for lifting and flipping a baking tray stack on a baking tray vehicle to a conveyor belt of the belt transmission mechanism, a large bracket mechanism for lifting the baking tray stack on the conveyor belt of the belt transmission mechanism upward, a small bracket mechanism for receiving the baking trays on the large bracket mechanism, a suction and release mechanism for sucking the baking trays on the large bracket mechanism or the small bracket mechanism one by one, and a second belt transmission mechanism for conveying the suction and release mechanism, wherein the suction and release mechanism is installed on the second belt transmission mechanism. The machine can completely replace manual receiving and sending of trays, increase the production speed of the production line, can automatically load materials through the lifting and flipping mechanism, and can realize uninterrupted operation with high efficiency due to the large tray mechanism and the small tray mechanism.

Description

Technical Field

[0001] The invention relates to the field of food processing equipment, and in particular to a baking tray receiving and sending machine. Background Art

[0002] At present, the production of baking companies' products such as hamburgers requires a large number of baking trays. Baking manufacturers mainly need to close and send out the trays manually, which is very labor-intensive. With the continuous increase in the company's production volume, the speed of manual closing and sending out the trays obviously cannot keep up with the operating speed of the production line. In addition, the temperature in the production workshop is around 42° in summer, and the temperature of the baking trays out of the oven is around 80°. The labor intensity of workers is very high, and the company's labor costs are constantly increasing. Summary of the invention

[0003] The present invention aims to solve the above problems and provides a baking tray receiving and sending machine, which can completely replace manual receiving and sending of trays, increase the production speed of the production line, can automatically load materials through the jacking and flipping mechanism, and has a large tray mechanism and a small tray mechanism to achieve uninterrupted operation with high efficiency. The technical solutions adopted are as follows:

[0004] A baking tray receiving and dispensing machine, characterized by comprising:

[0005] frame,

[0006] A first belt transmission mechanism for horizontally conveying the baking tray stack in the X direction, which is arranged at the bottom of the frame and driven by a first driving motor installed on the frame;

[0007] A lifting and flipping mechanism for lifting and flipping the baking tray stack on the baking tray trolley onto a conveyor belt with a transmission mechanism;

[0008] A large bracket mechanism for lifting the stack of baking trays on the conveyor belt of the belt drive mechanism upward, which is driven by a second drive motor mounted on the frame;

[0009] A small bracket mechanism for receiving the baking tray on the large bracket mechanism, which is driven by a third driving motor installed on the frame;

[0010] A suction release mechanism for sucking the baking trays on the large bracket mechanism or the small bracket mechanism one by one;

[0011] and a second belt transmission mechanism for transmitting the suction and release mechanism, wherein the suction and release mechanism is installed on the second belt transmission mechanism, and the second belt transmission mechanism is arranged on the top of the frame and driven by a fourth driving motor.

[0012] On the basis of the above technical scheme, the first belt transmission mechanism includes a first driving sprocket, a first driven sprocket, a first chain, a first driven sprocket, a first driving pulley, a first driven pulley and a conveyor belt, the first driving motor drives the first driving sprocket through a reducer, the first driving sprocket drives the first driven sprocket through the first chain, the first driven sprocket and the first driving pulley are connected to the same rotating shaft and rotate synchronously, the first driving pulley drives the first driven pulley through the conveyor belt, and the first driving sprocket, the first driven sprocket, the first driven sprocket, the first driving pulley and the first driven pulley are all rotatably connected to the frame.

[0013] On the basis of the above technical scheme, the lifting and turning mechanism includes a first cylinder, a connecting rod, two lifting and turning rods arranged side by side, a rocker rod and a cross rod. The first cylinder is installed on the frame, one end of the connecting rod is hinged to one end of the cylinder rod of the first cylinder, and the other end is hinged to the cross rod; the two ends of the cross rod are respectively fixed to the two lifting and turning rods, one end of the rocker rod is hinged to the frame, and the other end is hinged to the lifting and turning rod; each lifting and turning rod is connected to at least two rocker rods, each rocker rod is parallel to each other and has the same length, and the two lifting and turning rods are placed on both sides of the Y direction of the conveyor belt of the first belt transmission mechanism.

[0014] Based on the above technical solution, the first belt transmission mechanism is composed of two sets arranged side by side and they are synchronously driven by the same first drive motor through a reducer. The two first belt transmission mechanisms are located between the two lifting and flipping rods, and the connecting rod is located between the two first belt transmission mechanisms.

[0015] On the basis of the above technical scheme, the large bracket mechanism includes a front large bracket, a rear large bracket, a first chain transmission mechanism, a second chain transmission mechanism, a third chain transmission mechanism and a fourth chain transmission mechanism, the frame is fixedly connected with a Z-direction guide rail, the first chain transmission mechanism, the second chain transmission mechanism, the third chain transmission mechanism and the fourth chain transmission mechanism are arranged on the frame along the Z direction, one side of the front large bracket is connected to the chain of the first chain transmission mechanism, and the other side is connected to the chain of the second chain transmission mechanism; one side of the rear large bracket is connected to the chain of the third chain transmission mechanism, and the other side is connected to the chain of the fourth chain transmission mechanism; the front large bracket and the rear large bracket are symmetrically arranged, and the front large bracket The supporting platform for supporting the stack of baking trays is opposite to the supporting platform of the rear large bracket, the driving sprocket of the first chain transmission mechanism and the driving sprocket of the third chain transmission mechanism are connected to the same rotating shaft and rotate synchronously, the driving sprocket of the second chain transmission mechanism and the driving sprocket of the fourth chain transmission mechanism are connected to the same rotating shaft and rotate synchronously, the second driving motor synchronously drives the first chain transmission mechanism, the second chain transmission mechanism, the third chain transmission mechanism and the fourth chain transmission mechanism through the reducer, so that their chains move synchronously, the large bracket is rotatably connected with the first roller and the second roller, the Z guide rail is located between the first roller and the second roller, and the first roller and the second roller roll along the Z guide rail.

[0016] On the basis of the above technical scheme, the small bracket mechanism includes two active bevel gears, two driven bevel gears and two sets of chain transmission mechanisms. The two active bevel gears are connected to the same rotating shaft and rotate synchronously. The driven bevel gears are meshed with the corresponding active bevel gears. The driven bevel gears are coaxially connected with the active sprockets of the corresponding chain transmission mechanisms and rotate synchronously. The third drive motor drives the two active bevel gears through the reducer so that the chains of the two sets of chain transmission mechanisms move synchronously. The two chain transmission mechanisms are arranged on the frame along the Z direction. A small bracket is respectively installed on the chains of the two chain transmission mechanisms. The front large bracket and the rear large bracket are arranged one in front and one behind, and the two small brackets are arranged one on the left and one on the right.

[0017] On the basis of the above technical scheme, the second belt transmission mechanism is composed of two sets, the driving pulleys of the two second belt transmission mechanisms are coaxially connected and rotate synchronously and are driven by the fourth drive motor through the reducer, the suction and release mechanism includes a cylinder, a carrier plate, a push plate, a sliding sleeve and a guide rod, the carrier plate is installed on the conveyor belts of the two second belt transmission mechanisms, the sliding sleeve is fixedly installed on the carrier plate, the guide rod is inserted into the sliding sleeve and is slidably connected to the sliding sleeve, the bottom end of the guide rod is fixedly connected to the push plate, the cylinder barrel of the cylinder is fixedly installed on the carrier plate, and the bottom end of its piston rod is connected to the push plate; the push plate is located below the carrier plate and between the two conveyor belts.

[0018] Based on the above technical solution, the push plate is made of rubber or plastic.

[0019] The beneficial effects of the present invention are: it can completely replace the manual receiving and sending trays, increase the production speed of the production line, automatically load materials through the jacking and turning mechanism, and have a large tray mechanism and a small tray mechanism to achieve uninterrupted operation with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1a It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 1b It is an enlarged structural schematic diagram of part A in Figure 1;

[0022] Figure 2 It is a schematic structural diagram of the combination of the first belt transmission mechanism and the lifting and turning mechanism of the present invention;

[0023] Figure 3 is a schematic structural diagram of the first belt transmission mechanism of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the lifting and flipping mechanism of the present invention;

[0025] Figure 5 It is a rear view structural schematic diagram of the present invention; DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "X direction", "Y direction", "Z direction" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Among them, "X direction" and "Y direction" are both horizontal directions, "Z direction" is vertical, and "X direction", "Y direction" and "Z direction" are perpendicular to each other.

[0029] like Figures 1a to 5 As shown, a baking tray receiving and dispensing machine is characterized by comprising:

[0030] Rack 1,

[0031] A first belt transmission mechanism 2 for horizontally transmitting the baking tray stack in the X direction, which is arranged at the bottom of the frame 1 and driven by a first driving motor 20 installed on the frame 1; it can be understood that the conveyor belt 26 of the first belt transmission mechanism 2 can be a belt, a synchronous belt or a chain belt;

[0032] A lifting and flipping mechanism 3 for lifting and flipping the stack of baking trays on the baking tray trolley 8 onto the conveyor belt 26 of the belt transmission mechanism 2;

[0033] A large bracket mechanism for lifting the stack of baking trays on the conveyor belt 26 of the belt drive mechanism 2 upwards, which is driven by a second drive motor 40 mounted on the frame 1;

[0034] A small bracket mechanism for receiving the baking tray on the large bracket mechanism, which is driven by a third drive motor 50 mounted on the frame 1;

[0035] A suction release mechanism 7 for sucking the baking trays on the large bracket mechanism or the small bracket mechanism one by one;

[0036] And a second belt transmission mechanism for transmitting the suction and release mechanism 5 , the suction and release mechanism 5 is installed on the second belt transmission mechanism, the second belt transmission mechanism is arranged on the top of the frame 1 and is driven by a fourth driving motor 60 .

[0037] like Figure 2 and Figure 3 As shown, a specific implementation of the first belt transmission mechanism 2, the first belt transmission mechanism 2 includes a first driving sprocket 21, a first driven sprocket 23, a first chain 22, a first driven sprocket 23, a first driving pulley 24, a first driven pulley 25 and a conveyor belt 26, the first driving motor 20 drives the first driving sprocket 21 through a reducer, the first driving sprocket 21 drives the first driven sprocket 23 through the first chain 22, the first driven sprocket 23 and the first driving pulley 24 are connected to the same rotating shaft and rotate synchronously, the first driving pulley 24 drives the first driven pulley 25 through the conveyor belt 26, the first driving sprocket 21, the first driven sprocket 23, the first driven sprocket 23, the first driving pulley 24 and the first driven pulley 25 are all rotatably connected to the frame 1.

[0038] like Figure 2 and Figure 4As shown, preferably, the lifting and flipping mechanism 3 includes a first cylinder 30, a connecting rod 31, two lifting and flipping rods 33 arranged side by side, a rocker rod 32 and a cross bar 34, the first cylinder 30 is installed on the frame 1, one end of the connecting rod 31 is hinged to one end of the cylinder rod of the first cylinder 30, and the other end is hinged to the cross bar 34; the two ends of the cross bar 34 are respectively fixed to the two lifting and flipping rods 33, one end of the rocker rod 32 is hinged to the frame 1, and the other end is hinged to the lifting and flipping rod 33; each lifting and flipping rod 33 is connected to at least two rocker rods 32, and the rocker rods 32 are parallel to each other and have the same length, so that the lifting and flipping rod 33, the rocker rod 32 and the frame 1 together constitute a parallel four-bar mechanism, so that the lifting and flipping rod 33 can always remain horizontal, and the two lifting and flipping rods 33 are placed on both sides of the Y direction of the conveyor belt 26 of the first belt transmission mechanism 2.

[0039] Preferably, the first belt transmission mechanisms 2 are two sets arranged side by side and are synchronously driven by the same first drive motor 20 through a reducer. The two first belt transmission mechanisms 2 are located between the two lifting and flipping rods 33 , and the connecting rod 31 is located between the two first belt transmission mechanisms 2 .

[0040] It is understandable that the first belt drive mechanism and the second belt drive mechanism refer to a friction belt drive driven by the friction between the belt and the pulley or a synchronous belt drive driven by the mutual meshing of the teeth on the belt and the pulley, which at least includes a driving pulley, a driven pulley and a belt.

[0041] like Figure 1a and Figure 1bAs shown, preferably, the large bracket mechanism includes a front large bracket 41, a rear large bracket 42, a first chain transmission mechanism 43, a second chain transmission mechanism 44, a third chain transmission mechanism 45 and a fourth chain transmission mechanism 46, and the frame 1 is fixedly connected with a Z-direction guide rail 10, and the first chain transmission mechanism 43, the second chain transmission mechanism 44, the third chain transmission mechanism 45 and the fourth chain transmission mechanism 46 are arranged on the frame 1 along the Z direction, one side of the front large bracket 41 is connected to the chain of the first chain transmission mechanism 43, and the other side is connected to the chain of the second chain transmission mechanism 44; one side of the rear large bracket 42 is connected to the chain of the third chain transmission mechanism 45, and the other side is connected to the chain of the fourth chain transmission mechanism 46; the front large bracket 41 and the rear large bracket 42 are symmetrically arranged, and the front large bracket 41 is used for The supporting platform for supporting the stack of baking trays is opposite to the supporting platform of the rear large bracket 42, the driving sprocket of the first chain transmission mechanism 43 and the driving sprocket of the third chain transmission mechanism 45 are connected to the same rotating shaft and rotate synchronously, the driving sprocket of the second chain transmission mechanism 44 and the driving sprocket of the fourth chain transmission mechanism 46 are connected to the same rotating shaft and rotate synchronously, the second driving motor 40 synchronously drives the first chain transmission mechanism, the second chain transmission mechanism, the third chain transmission mechanism and the fourth chain transmission mechanism through the reducer, so that their chains move synchronously, the large bracket 41 is rotatably connected with the first roller 49-1 and the second roller 49-2, the Z guide rail 10 is located between the first roller 49-1 and the second roller 49-2, and the first roller 49-1 and the second roller 49-2 roll along the Z guide rail 10.

[0042] like Figure 1a and Figure 1b As shown, preferably, the small bracket mechanism includes two active bevel gears 51, two driven bevel gears 52 and two sets of chain transmission mechanisms, the two active bevel gears 51 are connected to the same rotating shaft and rotate synchronously, the driven bevel gears 52 are meshed with the corresponding active bevel gears 51, the driven bevel gears 51 are coaxially connected with the active sprocket of the corresponding chain transmission mechanism and rotate synchronously, the third driving motor 50 drives the two active bevel gears 51 through the reducer, so that the chains of the two sets of chain transmission mechanisms move synchronously, the two chain transmission mechanisms are arranged on the frame 1 along the Z direction, and a small bracket 53 is respectively installed on the chains of the two chain transmission mechanisms, the front large bracket 41 and the rear large bracket 42 are arranged one in front and one in the back, and the two small brackets 53 are arranged one on the left and one on the right.

[0043] It is understandable that the chain transmission mechanism at least includes a driving sprocket, a driven sprocket and a chain, wherein the sprocket may also be a belt pulley or a rope pulley, and the chain may also be a corresponding transmission belt or tendon rope.

[0044] like Figure 1a and Figure 1bAs shown, preferably, the second belt transmission mechanism is a synchronous belt transmission mechanism, and the synchronous belt transmission mechanism consists of two sets. The driving pulleys of the two synchronous belt transmission mechanisms are coaxially connected and rotate synchronously and are driven by the fourth drive motor 60 through a reducer. The suction and release mechanism 7 includes a cylinder 70, a carrier plate 71, a push plate, a sleeve 72 and a guide rod 73. The carrier plate 71 is installed on the conveyor belt 61 (synchronous belt) of the two synchronous belt transmission mechanisms. The sleeve 72 is fixedly installed on the carrier plate 71. The guide rod 73 is inserted into the sleeve 72 and is slidably connected to the sleeve 72. The bottom end of the guide rod 73 is fixedly connected to the push plate. The cylinder barrel of the cylinder 70 is fixedly installed on the carrier plate 71, and the bottom end of its piston rod is connected to the push plate; the push plate is located below the carrier plate 71 and between the two conveyor belts 61.

[0045] In order to prevent the push plate from being magnetized, preferably, the push plate is made of rubber or plastic.

[0046] The working process of serving the trays is as follows: first, a plurality of stacks of baking trays are pushed to the first belt transmission mechanism 2 by the baking tray trolley 8. The baking tray trolley 8 has two support platforms 80, and the baking tray stack is supported by the two support platforms 80. The conveyor belt 26 of the first belt transmission mechanism 2 is located in the area between the two support platforms 80. The lifting and flipping rod 33 of the lifting and flipping mechanism 3 is located between the support platform 80 and the conveyor belt 26 of the first belt transmission mechanism 2. The first cylinder 30 drives the lifting and flipping rod 33 to flip and rise upward, and the lifting and flipping rod 33 lifts the baking tray stack so that the baking tray stack is separated from the support platform 80. The baking tray trolley is pulled out. 8. The first cylinder 30 drives the lifting and flipping rod 33 to flip downward. After the lifting and flipping rod 33 is lower than the top surface of the conveyor belt 26 of the first belt transmission mechanism 2, the conveyor belt 26 of the first belt transmission mechanism 2 receives the stack of baking trays, and the stack of baking trays is separated from the lifting and flipping rod 33. The first belt transmission mechanism 2 transmits the stack of baking trays on the conveyor belt 26 to the bottom of the large bracket mechanism. The large bracket mechanism lifts the stack of baking trays upward as a whole. After the suction and release mechanism 7 uses the carrier plate to suck a baking tray, the baking tray is separated from the baking tray stack. The second belt transmission mechanism transfers the suction and release mechanism 7 together with the baking tray horizontally. When it reaches the tray delivery position, the cylinder 70 pushes the push plate to release the baking tray away from the carrying plate to complete the tray delivery. After the suction release mechanism 7 and the second belt transmission mechanism perform the above several times, the number of baking trays on the large bracket of the large bracket mechanism decreases accordingly. After it is reduced to a certain number, the small bracket of the small bracket mechanism is driven by the third drive motor 50 to lift up, carrying the remaining baking trays on the large bracket mechanism, so that the baking tray is separated from the large bracket of the large bracket mechanism. The suction release mechanism 7 and the second belt transmission mechanism continue to perform the working process of sucking the baking tray - transferring - releasing the baking tray - returning to the position. At the same time, the large bracket mechanism is driven by the second drive motor 40 to descend to receive the new stack of baking trays. After the baking trays on the small bracket of the small bracket mechanism are delivered, the large bracket of the large bracket mechanism rises into place, thereby realizing that the suction and release mechanism 7 and the second belt transmission mechanism can work non-stop and have high efficiency. If there is no small bracket mechanism, then after the baking trays on the large bracket of the large bracket mechanism are delivered, the large bracket mechanism descends to take the new stack of baking trays and then rises into place. During this period of time, the suction and release mechanism 7 and the second belt transmission mechanism will be idle due to the lack of operating baking trays, and the efficiency is low.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A baking tray receiving and dispensing machine, characterized in that: include: Rack(1) , A first belt transmission mechanism (2) for horizontally conveying the baking tray stack in the X direction, which is arranged at the bottom of the frame (1) and driven by a first drive motor (20) mounted on the frame (1); A lifting and flipping mechanism (3) for lifting and flipping a stack of baking trays on a baking tray trolley (8) onto a conveyor belt (26) with a belt transmission mechanism (2); A large bracket mechanism for lifting the stack of baking trays on the conveyor belt (26) of the belt drive mechanism (2) upwards, which is driven by a second drive motor (40) mounted on the frame (1); A small bracket mechanism for receiving a baking tray on the large bracket mechanism, which is driven by a third drive motor (50) mounted on the frame (1); A suction release mechanism (7) for sucking the baking trays on the large bracket mechanism or the small bracket mechanism one by one; and a second belt transmission mechanism for transmitting the suction and release mechanism (7), wherein the suction and release mechanism (7) is mounted on the second belt transmission mechanism, and the second belt transmission mechanism is arranged on the top of the frame (1) and driven by a fourth drive motor (60); The lifting and flipping mechanism (3) comprises a first cylinder (30), a connecting rod (31), two lifting and flipping rods (33) arranged side by side, a swing rod (32) and a cross rod (34); the first cylinder (30) is mounted on the frame (1); one end of the connecting rod (31) is hinged to one end of the cylinder rod of the first cylinder (30), and the other end is hinged to the cross rod (34); the two ends of the cross rod (34) are respectively fixed to the two lifting and flipping rods (33); one end of the swing rod (32) is hinged to the frame (1), and the other end is hinged to the lifting and flipping rod (33); each lifting and flipping rod (33) is connected to at least two swing rods (32); the swing rods (32) are parallel to each other and have the same length; the two lifting and flipping rods (33) are respectively arranged on both sides of the conveyor belt (26) of the first belt transmission mechanism (2) in the Y direction; The large bracket mechanism comprises a front large bracket (41), a rear large bracket (42), a first chain transmission mechanism, a second chain transmission mechanism, a third chain transmission mechanism and a fourth chain transmission mechanism; the frame (1) is fixedly connected with a Z-direction guide rail (10); the first chain transmission mechanism, the second chain transmission mechanism, the third chain transmission mechanism and the fourth chain transmission mechanism are arranged on the frame (1) along the Z direction; one side of the front large bracket (41) is connected to the chain of the first chain transmission mechanism, and the other side is connected to the chain of the second chain transmission mechanism; one side of the rear large bracket (42) is connected to the chain of the third chain transmission mechanism, and the other side is connected to the chain of the fourth chain transmission mechanism; the front large bracket (41) and the rear large bracket (42) are symmetrically arranged; the bearing platform of the front large bracket (41) for bearing the baking tray stack is connected to the bearing platform of the rear large bracket (42) The supporting platform of the frame (42) is opposite to that of the frame, the driving sprocket of the first chain transmission mechanism and the driving sprocket of the third chain transmission mechanism are connected to the same rotating shaft and rotate synchronously, the driving sprocket of the second chain transmission mechanism and the driving sprocket of the fourth chain transmission mechanism are connected to the same rotating shaft and rotate synchronously, the second driving motor (40) synchronously drives the first chain transmission mechanism, the second chain transmission mechanism, the third chain transmission mechanism and the fourth chain transmission mechanism through the reducer, so that their chains move synchronously, the first roller (49-1) and the second roller (49-2) are rotatably connected to the large bracket (41), the Z-direction guide rail (10) is located between the first roller (49-1) and the second roller (49-2), and the first roller (49-1) and the second roller (49-2) roll along the Z-direction guide rail (10); The small bracket mechanism comprises two active bevel gears (51), two driven bevel gears (52) and two sets of chain transmission mechanisms. The two active bevel gears (51) are connected to the same rotating shaft and rotate synchronously. The driven bevel gears (52) are meshed with the corresponding active bevel gears (51). The driven bevel gears (52) are coaxially connected with the active sprockets of the corresponding chain transmission mechanisms and rotate synchronously. The third driving motor (50) drives the two active bevel gears (51) through a speed reducer so that the chains of the two sets of chain transmission mechanisms travel synchronously. The two chain transmission mechanisms are arranged on the frame (1) along the Z direction. A small bracket (53) is respectively installed on the chains of the two chain transmission mechanisms. The front large bracket (41) and the rear large bracket (42) are arranged one in front of the other, and the two small brackets (53) are arranged one on the left and one on the right.

2. A baking tray receiving and dispensing machine according to claim 1, characterized in that: The first belt transmission mechanism (2) comprises a first driving sprocket (21), a first driven sprocket (23), a first chain (22), a first driven sprocket (23), a first driving pulley (24), a first driven pulley (25) and a conveyor belt (26); the first driving motor (20) drives the first driving sprocket (21) via a reducer; the first driving sprocket (21) drives the first driven sprocket (23) via the first chain (22); the first driven sprocket (23) and the first driving pulley (24) are connected to the same rotating shaft and rotate synchronously; the first driving pulley (24) drives the first driven pulley (25) via a conveyor belt (26); the first driving sprocket (21), the first driven sprocket (23), the first driven sprocket (23), the first driving pulley (24) and the first driven pulley (25) are all rotatably connected to the frame (1).

3. The baking tray receiving and dispensing machine according to claim 1, characterized in that: The first belt transmission mechanisms (2) are two sets arranged side by side and are synchronously driven by the same first drive motor (20) through a reducer. The two first belt transmission mechanisms (2) are located between the two lifting and flipping rods (33), and the connecting rod (31) is located between the two first belt transmission mechanisms (2).

4. The baking tray receiving and dispensing machine according to claim 1, characterized in that: The second belt transmission mechanism comprises two sets, the driving pulleys of the two second belt transmission mechanisms are coaxially connected and rotate synchronously and are driven by a fourth drive motor (60) through a reducer. The suction and release mechanism (7) comprises a cylinder (70), a carrier plate (71), a push plate, a sliding sleeve (72) and a guide rod (73). The carrier plate (71) is installed on the conveyor belts (61) of the two second belt transmission mechanisms, the sliding sleeve (72) is fixedly installed on the carrier plate (71), the guide rod (73) is inserted into the sliding sleeve (72) and is slidably connected to the sliding sleeve (72), the bottom end of the guide rod (73) is fixedly connected to the push plate, the cylinder barrel of the cylinder (70) is fixedly installed on the carrier plate (71), and the bottom end of its piston rod is connected to the push plate; the push plate is located below the carrier plate (71) and between the two conveyor belts (61).

5. The baking tray receiving and dispensing machine according to claim 4, characterized in that: The push plate is made of rubber or plastic.

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