Transmission structure of egg box labeling equipment

Abstract

The utility model discloses a transmission structure of egg box labeling equipment, which comprises a conveying mechanism, a blanking frame and a receiving frame, and the conveying mechanism, the blanking mechanism and the receiving mechanism are linked and matched through a driving motor and a transmission main shaft. Compared with the prior art, the main driving motor is connected with the transmission main shaft, the transmission main shaft is connected with the transmission device and is connected with the chain conveying device on the conveying platform through chain transmission so as to drive the chain conveying device to operate, and the first power shaft in the discharging frame and the second power shaft in the receiving frame are connected with the transmission main shaft through chain transmission. The driving motor can drive the discharging swing arm connecting rod mechanism and the receiving swing arm connecting rod mechanism to act at the same time, so that the conveying mechanism, the discharging mechanism and the receiving mechanism can act through one driving motor, the cost for independently setting a driving device is effectively reduced, and the equipment manufacturing cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of labeling equipment technology, specifically to a transmission structure for an egg carton labeling device. Background Technology

[0002] Egg cartons are packaging boxes used to package eggs. Currently, most egg packaging boxes are made of environmentally friendly paper or plastic. Before the eggs are sold, labels and relevant information need to be affixed to the egg cartons.

[0003] In existing technologies, egg carton labeling equipment mostly includes a conveying mechanism, an egg carton separation mechanism (for unloading egg cars), a labeling mechanism (for affixing labels to egg cars), a label pressing mechanism (for pressing labels onto egg cars), and a stacking and receiving mechanism (for receiving labeled egg cars from the conveying mechanism and stacking them for storage). In current egg carton labeling equipment, the transmission structure between the conveying mechanism, egg carton separation mechanism, and stacking and receiving mechanism operates independently, and each mechanism requires a separate drive device (motor), resulting in high manufacturing costs for egg carton labeling equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a transmission structure for an egg carton labeling device, which aims to solve the problem that each mechanism of the existing egg carton labeling device needs to be set with a separate drive device, resulting in high manufacturing costs.

[0005] To achieve the above objectives, this utility model provides a transmission structure for an egg carton labeling device, comprising: a conveying mechanism, including a conveying frame, a transmission main shaft, and a drive motor; a conveying platform is provided on the upper surface of the conveying frame, and a chain conveying device is provided on the conveying platform; the transmission main shaft is disposed at its bottom along the length direction of the conveying frame; one end of the transmission main shaft is connected to a transmission device; the transmission device is connected to the chain conveying device via chain drive; and the drive motor is connected to the transmission main shaft via chain drive; a discharge frame is disposed on one side of the inlet end of the conveying frame, and a first power shaft is provided at the bottom of the discharge frame; the first power shaft is connected to... The transmission main shafts are connected by chain drive. One end of the first power shaft is provided with a first turntable linkage mechanism. The unloading rack is provided with an unloading swing arm linkage mechanism. One end of the unloading swing arm linkage mechanism is hinged to one end of the first turntable linkage mechanism. The receiving rack is located on one side of the receiving end of the conveying rack. The bottom of the receiving rack is provided with a second power shaft. The second power shaft is connected to the transmission main shaft by chain drive. One end of the second power shaft is provided with a second turntable linkage mechanism. The receiving rack is provided with a receiving swing arm linkage mechanism. One end of the receiving swing arm linkage mechanism is hinged to one end of the second turntable linkage mechanism.

[0006] Furthermore, the chain conveying device includes a conveying drive shaft, a conveying driven shaft, and a conveying chain. The conveying drive shaft and the conveying driven shaft are respectively disposed at the front and rear ends of the conveying platform. One end of the conveying drive shaft is connected to the transmission device via chain drive. The conveying chain is wound around the sprockets of the conveying drive shaft and the conveying driven shaft.

[0007] Furthermore, the conveying platform is provided with support rods arranged at intervals along its width direction and laid out along its length direction, and the conveying chain is provided with push blocks at intervals that rest on the support rods and can move with the conveying chain.

[0008] Furthermore, the unloading rack is provided with two symmetrically arranged first side plates, and first cam followers are symmetrically arranged on the two first side plates. The unloading swing arm linkage mechanism is located between the two first side plates. The unloading swing arm mechanism includes a first connecting shaft, a first power crank arm, and a first suction cup shaft. The first connecting shaft is rotatably arranged on the upper end face of the unloading rack body. First auxiliary crank arms are fixedly arranged at both ends of the first connecting shaft. One end of the first auxiliary crank arm is rotatably connected to the first suction cup shaft. The first power crank arm is fixedly connected to the first connecting shaft. One end of the first power crank arm is hinged to the end of the connecting rod in the first turntable linkage mechanism. The other end of the first power crank arm is rotatably connected to the first suction cup shaft. A first suction cup device is provided on the first suction cup shaft. First guide rods are rotatably connected at both ends of the first suction cup shaft on one side of the first auxiliary crank arm. The first guide rods are provided with first guide holes sleeved on the first cam followers.

[0009] Furthermore, an egg carton placement rack is provided on the unloading rack between the two first side plates. The egg carton placement rack has multiple first openings. The first suction cup device includes multiple first suction cup mounting plates corresponding to the first openings. Multiple first vacuum suction cups are provided on the first suction cup mounting plates.

[0010] Furthermore, a cylinder-driven baffle block is provided on the outer edge of the first opening.

[0011] Furthermore, the receiving rack is provided with two symmetrically arranged second side plates, and the two second side plates are provided with second cam followers. The receiving swing arm linkage mechanism is located between the two second side plates. The receiving swing arm linkage mechanism includes a second connecting shaft, a second power crank arm, and a second suction cup shaft. The second connecting shaft is rotatably disposed on the upper end face of the receiving rack body. The two ends of the second connecting shaft are fixedly provided with second auxiliary crank arms. One end of the second auxiliary crank arm is rotatably connected to the second suction cup shaft. The second power crank arm is fixedly connected to the second connecting shaft. One end of the second power crank arm is hinged to the end of the connecting rod in the second turntable linkage mechanism. The other end of the second power crank arm is rotatably connected to the second suction cup shaft. The second suction cup shaft is provided with a second suction cup device. The two ends of the second suction cup shaft are rotatably connected to a second guide rod located on one side of the second auxiliary crank arm. The second guide rod is provided with a second guide hole sleeved on the second cam follower.

[0012] Furthermore, the receiving rack is provided with an egg carton storage rack located between the two second side plates. The egg carton storage rack is provided with multiple second openings. The second suction cup device includes multiple second suction cup mounting plates corresponding to the second openings. Multiple second vacuum suction cups are provided on the second suction cup mounting plates.

[0013] Furthermore, a brush is provided at the edge of the second opening.

[0014] Furthermore, the transmission spindle includes a first transmission spindle and a second transmission spindle, the first transmission spindle and the second transmission spindle are connected by a coupling, the first power shaft is connected to the first transmission spindle by a chain drive, and the second power shaft is connected to the second transmission spindle by a chain drive.

[0015] The transmission structure of the egg carton labeling equipment provided by this utility model, compared with the prior art, has a main drive motor connected to a transmission main shaft, which is connected to a transmission device and then to a chain conveyor on the conveying platform via chain drive to drive the chain conveyor. The first power shaft in the unloading rack and the second power shaft in the receiving rack are connected to the transmission main shaft via chain drive, which can simultaneously drive the unloading swing arm linkage mechanism and the receiving swing arm linkage mechanism to perform actions. This allows a single drive motor to meet the needs of the conveying mechanism, unloading mechanism, and receiving mechanism, effectively reducing the cost of setting up separate drive devices and saving equipment manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the transmission structure of an egg carton labeling device according to the present invention;

[0017] Figure 2This is a front view schematic diagram of the transmission structure of an egg carton labeling device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the conveying mechanism in the transmission structure of an egg carton labeling device according to this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0020] Figure 5 This is a schematic diagram of the connection structure between the material feeding swing arm linkage mechanism and the egg carton placement rack on the material feeding frame in the transmission structure of an egg carton labeling device of this utility model.

[0021] Figure 6 This is a schematic diagram of the connection structure between the material feeding swing arm linkage mechanism and the first turntable linkage mechanism in the transmission structure of an egg carton labeling device of this utility model.

[0022] Figure 7 for Figure 5 Enlarged view of section B;

[0023] Figure 8 This is a schematic diagram of the connection structure between the receiving swing arm linkage mechanism and the egg carton storage rack on the receiving rack in the transmission structure of the egg carton labeling equipment of this utility model.

[0024] Figure 9 This is a schematic diagram of the connection structure between the material receiving swing arm linkage mechanism and the second turntable linkage mechanism in the transmission structure of an egg carton labeling device according to this utility model.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Conveying mechanism; 10-Conveying frame; 11-Drive shaft; 111-First drive shaft; 112-Second drive shaft; 12-Drive motor; 13-Transmission device; 14-Support rod; 15-Conveying drive shaft; 16-Conveying driven shaft; 17-Conveying chain; 18-Push block;

[0027] 2-Unloading rack; 201-First power shaft; 202-First turntable linkage mechanism; 203-First side plate; 204-First cam follower; 205-Egg carton placement rack; 206-First opening; 207-Stop block;

[0028] 20-First connecting shaft; 21-First power crank arm; 22-First auxiliary crank arm; 23-First suction cup shaft; 24-First guide rod; 25-First guide hole; 26-First suction cup mounting plate; 27-First vacuum suction cup;

[0029] 3-Receiving rack; 301-Second drive shaft; 302-Second turntable linkage mechanism; 303-Second side plate; 304-Second cam follower; 305-Egg box storage rack; 306-Second opening; Brush (not shown in view);

[0030] 30-Second connecting shaft; 31-Second power crank arm; 32-Second auxiliary crank arm; 33-Second suction cup shaft; 34-Second guide rod; 35-Second guide hole; 36-Second suction cup mounting plate; 37-Second vacuum suction cup. Detailed Implementation

[0031] The present invention will be described in detail below with reference to specific embodiments.

[0032] In this utility model, when directional terms appear, they are used to facilitate the description of this utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figure 1 and Figure 2 As shown, a transmission structure for an egg carton labeling device includes a conveying mechanism 1, a feeding rack 2, and a receiving rack 3.

[0035] The conveying mechanism 1 includes a conveying frame 10, a transmission main shaft 11, and a drive motor 12. The upper surface of the conveying frame 10 is provided with a conveying platform, and a chain conveying device is provided on the conveying platform. The transmission main shaft is arranged at the bottom of the conveying frame 10 along its length direction. One end of the transmission main shaft 11 is connected to a transmission device 13. The transmission device 13 is connected to the chain conveying device through chain drive. The drive motor 12 is connected to the transmission main shaft 11 through chain drive.

[0036] The unloading rack 2 is located on one side of the inlet end of the conveyor rack 10. The bottom of the unloading rack 2 is provided with a first power shaft 201. The first power shaft 201 is connected to the transmission main shaft 11 through chain drive. One end of the first power shaft 201 is provided with a first turntable linkage mechanism 202. The unloading rack 2 is provided with an unloading swing arm linkage mechanism. One end of the unloading swing arm linkage mechanism is hinged to one end of the first turntable linkage mechanism 202.

[0037] The receiving rack 3 is located on one side of the receiving end of the conveyor rack 10. The bottom of the receiving rack 3 is provided with a second power shaft 301. The second power shaft 301 is connected to the main transmission shaft 11 via chain drive. One end of the second power shaft 301 is provided with a second turntable linkage mechanism 302. The receiving rack 3 is provided with a receiving swing arm linkage mechanism. One end of the receiving swing arm linkage mechanism is hinged to one end of the second turntable linkage mechanism 302.

[0038] The transmission device 13 is a cam divider, which enables the chain conveyor connected to it to move four grids per minute through the gap transmission device 13.

[0039] In specific implementation, the main drive motor 12 is connected to the transmission main shaft 11, the transmission main shaft 11 is connected to the transmission device 13 and connected to the chain conveyor on the conveying platform through chain drive to drive the chain conveyor. The first power shaft 201 in the unloading rack 2 and the second power shaft 301 in the receiving rack 3 are connected to the transmission main shaft 11 through chain drive, which can simultaneously drive the unloading swing arm linkage mechanism and the receiving swing arm linkage mechanism to perform actions. This allows the conveying mechanism 1, the unloading mechanism and the receiving mechanism to perform actions with a single drive motor 12, effectively reducing the cost of setting up a separate drive device and saving equipment manufacturing costs.

[0040] like Figure 3 and Figure 4 As shown, in this embodiment, the transmission main shaft 11 is connected to the bottom of the conveyor frame 10 via multiple bearing seats. The transmission main shaft 11 includes a first transmission main shaft 111 and a second transmission main shaft 112. The first transmission main shaft 111 and the second transmission main shaft 112 are connected by a coupling to form a whole transmission main shaft 11, thereby avoiding the problem that the transmission main shaft 11 is too long, resulting in insufficient concentricity of the shaft and easy bending deformation. The first power shaft 201 is connected to the first transmission main shaft 111 via chain drive, and the second power shaft 301 is connected to the second transmission main shaft 112 via chain drive.

[0041] In this embodiment, the chain conveying device includes a conveying drive shaft 15, a conveying driven shaft 16, and a conveying chain 17. The conveying drive shaft 15 and the conveying driven shaft 16 are respectively arranged at the front and rear ends of the conveying platform. One end of the conveying drive shaft 15 is connected to the transmission device 13 via chain drive. The conveying chain 17 is wound around the sprockets of the conveying drive shaft 15 and the conveying driven shaft 16.

[0042] In specific implementation, the drive motor 12 drives the transmission main shaft 11, the transmission device 13 is connected to one end of the transmission main shaft 11, and the transmission device 13 is connected to the conveying drive shaft 15 by chain drive, thereby driving the conveying chain 17 to move around the conveying drive shaft 15 and the conveying driven shaft 16.

[0043] In this embodiment, the conveying platform is provided with support rods 14 arranged at intervals along its width and laid out along its length, thereby reducing the sheet metal material cost of the conveying platform. Push blocks 18 are provided at intervals on the conveying chain 17, which rest on the support rods 14 and can move with the conveying chain 17. The egg boxes placed on the support rods 14 are pushed and fed by the push blocks 18 on the conveying chain 17.

[0044] like Figures 5 to 7 As shown, in this embodiment, the unloading rack 2 is provided with two symmetrically arranged first side plates 203, and the two first side plates 203 are symmetrically provided with first cam followers 204, and the unloading swing arm linkage mechanism is located between the two first side plates 203. The unloading swing arm mechanism includes a first connecting shaft 20, a first power crank arm 21, and a first suction cup shaft 23. The first connecting shaft 20 is rotatably mounted on the upper surface of the unloading frame 2. First auxiliary crank arms 22 are fixedly mounted at both ends of the first connecting shaft 20, with one end of each auxiliary crank arm 22 rotatably connected to the first suction cup shaft 23. The first power crank arm 21 is fixedly connected to the first connecting shaft 20, with one end of each power crank arm 21 hinged to the end of a connecting rod in the first turntable linkage mechanism 202, and the other end of each power crank arm 21 rotatably connected to the first suction cup shaft 23. The first suction cup shaft 23 is equipped with a first suction cup device. First guide rods 24 are rotatably connected at both ends of the first suction cup shaft 23, located on one side of the first auxiliary crank arm 22. The first guide rods 24 have first guide holes 25 fitted onto the first cam follower 204. These first guide holes 25 are elongated guide holes.

[0045] In specific implementation, the first unloading swing arm linkage mechanism drives the first turntable linkage mechanism 202 to rotate through the rotation of the transmission main shaft 11, thereby driving the first power crank arm 21 and the first auxiliary crank arm 22 to rotate, thereby driving the first suction cup device to perform a flipping motion. The flipping trajectory is controlled by the first guide rod 24 in conjunction with the first cam follower 204.

[0046] In this embodiment, an egg carton placement rack 205 is provided on the unloading rack 2 between the two first side plates 203. The egg carton placement rack 205 is provided with a plurality of first openings 206. The first suction cup device includes a plurality of first suction cup mounting plates 26 corresponding to the first openings 206. A plurality of first vacuum suction cups 27 are provided on the first suction cup mounting plates 26.

[0047] In practical implementation, by providing multiple first openings 206 on the egg carton placement rack 205, and by having the first suction cup device corresponding to the multiple first openings 206, the number of egg cartons that can be fed in one operation can be increased, thereby improving production efficiency.

[0048] In this embodiment, a cylinder-driven baffle block 207 is provided on the outer edge of the first opening 206. When the first suction cup device flips the egg box to retrieve it, the baffle block 207 is retracted by the cylinder. After the egg box is retrieved, the baffle block 207 is extended by the air rod to prevent the egg box from falling out of the egg box placement rack 205.

[0049] like Figure 8 and Figure 9 As shown, in this embodiment, the receiving rack 3 is provided with two symmetrically arranged second side plates 303, and a second cam follower 304 is provided on the two second side plates 303. The receiving swing arm linkage mechanism is located between the two second side plates 303. The receiving swing arm linkage mechanism includes a second connecting shaft 30, a second power crank arm 31, and a second suction cup shaft 33. The second connecting shaft 30 is rotatably disposed on the upper end surface of the receiving rack 3 body, and second auxiliary crank arms 32 are fixedly provided at both ends of the second connecting shaft 30. One end of the second auxiliary crank arm 32 is connected to the second suction cup. The rotating shaft 33 is rotatably connected; the second power crank arm 31 is fixedly connected to the second connecting rotating shaft 30, one end of the second power crank arm 31 is hinged to the end of the connecting rod in the second turntable linkage mechanism 302, and the other end of the second power crank arm 31 is rotatably connected to the second suction cup rotating shaft 33; the second suction cup rotating shaft 33 is provided with a second suction cup device, and the two ends of the second suction cup rotating shaft 33 are rotatably connected to a second guide rod 34 on one side of the second auxiliary crank arm 32. The second guide rod 34 is provided with a second guide hole 35 sleeved on the second cam follower 304. The second guide hole is an elongated guide hole.

[0050] In specific implementation, the second unloading swing arm linkage mechanism drives the second turntable linkage mechanism 302 to rotate through the rotation of the transmission main shaft 11, thereby driving the second power crank arm 31 and the second auxiliary crank arm 32 to rotate, thereby driving the second suction cup device to perform a flipping motion. The flipping trajectory is controlled by the second guide rod 34 in conjunction with the second cam follower 304.

[0051] In this embodiment, an egg carton storage rack 305 is provided on the receiving rack 3 between the two second side plates 303. The egg carton storage rack 305 is provided with a plurality of second openings 306. The second suction cup device includes a plurality of second suction cup mounting plates 36 corresponding to the second openings 306. A plurality of second vacuum suction cups 37 are provided on the second suction cup mounting plates 36.

[0052] By providing multiple second openings 306 on the egg carton storage rack 305, and having the second suction cup device corresponding to the multiple second openings 306, the number of egg cartons collected in one operation can be increased, thereby improving production efficiency.

[0053] The second opening 306 has a brush (not shown in the view) on its edge to prevent the placed egg carton from falling out of the egg carton storage rack 305.

[0054] Where there is no conflict, the above embodiments and features can be combined with each other.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A transmission structure for an egg carton labeling device, characterized in that, include: The conveying mechanism includes a conveying frame, a drive shaft, and a drive motor. The upper surface of the conveying frame is provided with a conveying platform, and the conveying platform is provided with a chain conveying device. The drive shaft is arranged at the bottom of the conveying frame along its length direction. One end of the drive shaft is connected to a transmission device. The transmission device is connected to the chain conveying device through chain drive. The drive motor is connected to the drive shaft through chain drive. A feeding rack is provided on one side of the feeding end of the conveyor frame. The bottom of the feeding rack is provided with a first power shaft. The first power shaft is connected to the transmission main shaft through chain drive. One end of the first power shaft is provided with a first turntable linkage mechanism. The feeding rack is provided with a feeding swing arm linkage mechanism. One end of the feeding swing arm linkage mechanism is hinged to one end of the first turntable linkage mechanism. A receiving rack is set on one side of the receiving end of the conveyor rack. The bottom of the receiving rack is provided with a second power shaft. The second power shaft is connected to the main transmission shaft through chain drive. One end of the second power shaft is provided with a second turntable linkage mechanism. The receiving rack is provided with a receiving swing arm linkage mechanism. One end of the receiving swing arm linkage mechanism is hinged to one end of the second turntable linkage mechanism.

2. The transmission structure of the egg carton labeling device according to claim 1, characterized in that, The chain conveying device includes a conveying drive shaft, a conveying driven shaft, and a conveying chain. The conveying drive shaft and the conveying driven shaft are respectively located at the front and rear ends of the conveying platform. One end of the conveying drive shaft is connected to the transmission device via chain drive. The conveying chain is wound around the sprockets of the conveying drive shaft and the conveying driven shaft.

3. The transmission structure of the egg carton labeling device according to claim 2, characterized in that, The conveying platform is provided with support rods arranged at intervals along its width and laid out along its length. Push blocks are provided at intervals on the conveying chain, which rest on the support rods and can move with the conveying chain.

4. The transmission structure of the egg carton labeling device according to claim 3, characterized in that, The unloading rack is provided with two symmetrically arranged first side plates, and first cam followers are symmetrically arranged on the two first side plates. The unloading swing arm linkage mechanism is located between the two first side plates. The unloading swing arm mechanism includes a first connecting shaft, a first power crank arm, and a first suction cup shaft; The first connecting shaft is rotatably disposed on the upper end surface of the unloading frame. First auxiliary curved arms are fixedly provided at both ends of the first connecting shaft, and one end of the first auxiliary curved arm is rotatably connected to the first suction cup shaft. The first power crank arm is fixedly connected to the first connecting shaft. One end of the first power crank arm is hinged to the end of the connecting rod in the first turntable linkage mechanism, and the other end of the first power crank arm is rotatably connected to the first suction cup shaft. The first suction cup shaft is provided with a first suction cup device. The two ends of the first suction cup shaft are rotatably connected to a first guide rod located on one side of the first auxiliary crank arm. The first guide rod is provided with a first guide hole sleeved on the first cam follower.

5. The transmission structure of the egg carton labeling device according to claim 4, characterized in that, An egg carton placement rack is provided on the unloading rack between the two first side plates. The egg carton placement rack has multiple first openings, and the first suction cup device includes multiple components corresponding to the first openings. The first suction cup mounting plate is provided with a plurality of first vacuum suction cups.

6. The transmission structure of an egg carton labeling device according to claim 5, characterized in that, The outer edge of the first opening is provided with a cylinder-driven baffle block.

7. The transmission structure of an egg carton labeling device according to claim 6, characterized in that, The receiving rack is provided with two symmetrically arranged second side plates, and the two second side plates are provided with second protrusions. Wheel follower, the material receiving swing arm linkage mechanism is located between the two second side plates; The material receiving swing arm linkage mechanism includes a second connecting shaft, a second power crank arm, and a second suction cup shaft; the second connecting shaft is rotatably disposed on the upper end face of the material receiving frame, and second auxiliary crank arms are fixedly disposed at both ends of the second connecting shaft, with one end of the second auxiliary crank arm rotatably connected to the second suction cup shaft; The second power crank arm is fixedly connected to the second connecting shaft. One end of the second power crank arm is hinged to the end of the connecting rod in the second turntable linkage mechanism, and the other end of the second power crank arm is rotatably connected to the second suction cup shaft. The second suction cup shaft is equipped with a second suction cup device, and the two ends of the second suction cup shaft are located at the... A second guide rod is rotatably connected to one side of the second auxiliary crank arm, and the second guide rod is provided with a second guide hole that is sleeved on the second cam follower.

8. The transmission structure of an egg carton labeling device according to claim 7, characterized in that, An egg carton storage rack is provided on the receiving rack between the two second side panels. The device has multiple second openings. The second suction cup device includes multiple second suction cup mounting plates that are arranged corresponding to the second openings. Multiple second vacuum suction cups are provided on the second suction cup mounting plates.

9. The transmission structure of an egg carton labeling device according to claim 8, characterized in that, The second opening edge is provided with a brush.

10. The transmission structure of an egg carton labeling device according to claim 1, characterized in that, The transmission spindle includes a first transmission spindle and a second transmission spindle, the first transmission spindle being connected to the second transmission spindle. The main shafts are connected by a coupling, the first power shaft is connected to the first transmission main shaft by a chain drive, and the second power shaft is connected to the second transmission main shaft by a chain drive.

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