Transfer device

Abstract

The utility model belongs to the technical field of pole piece processing, and particularly relates to a transfer device which comprises a machine frame, a lifting driving mechanism, a lift car mechanism, a feeding mechanism and a discharging mechanism. A lifting inner cavity is formed in the rack; the lift car mechanism is arranged in the lifting inner cavity, and a storage inner cavity is formed in the lift car mechanism; the lifting driving mechanism is connected to the machine frame and connected with the lift car mechanism. The feeding mechanism is arranged at the first position, in the lifting direction, of the rack. The output end of the feeding mechanism is communicated with the storage inner cavity; the unloading mechanism is arranged at a second position of the rack along the lifting direction; the first position and the second position are at different heights; and the input end of the unloading mechanism is communicated with the storage inner cavity. According to the utility model, the transfer efficiency can be improved, the space can be fully utilized, and the safety production requirement can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of pole piece processing, and in particular relates to a transfer device. Background Art

[0002] At present, battery cells are produced in multi-floor factories, and many materials are transported across floors. If the materials are only transported by freight elevators, the transportation time is limited and there are requirements for site channels. The transportation efficiency is relatively low and it does not conform to the production concept of modern intelligent manufacturing. Therefore, a cross-floor transportation device is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a transfer device to improve the transfer efficiency in view of the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A transfer device comprises a frame, a lifting drive mechanism, a car mechanism, a loading mechanism and a unloading mechanism; a lifting inner cavity is provided in the frame; the car mechanism is arranged in the lifting inner cavity, and a storage inner cavity is provided in the car mechanism; the lifting drive mechanism is connected to the frame and to the car mechanism; the loading mechanism is arranged at a first position of the frame along the lifting direction; and the output end of the loading mechanism is communicated with the storage inner cavity; the unloading mechanism is arranged at a second position of the frame along the lifting direction; and the first position and the second position are at different heights; the input end of the unloading mechanism is communicated with the storage inner cavity.

[0006] Preferably: the car mechanism includes a frame and a conveying assembly; the frame is connected to the lifting drive mechanism; the storage cavity is arranged inside the frame; the conveying assembly is arranged inside the storage cavity, and both are connected to the loading mechanism and the unloading mechanism.

[0007] Preferably: the conveying assembly includes a first conveying roller, a first transmission wheel and a first connecting frame; the first connecting frame is connected to the inside of the frame; the first conveying roller is arranged on the first connecting frame; the first transmission wheel is connected to the side end of the first conveying roller.

[0008] Preferably: the car mechanism further comprises a positioning slide rail assembly; one end of the positioning slide rail assembly is connected to the frame; and the other end of the positioning slide rail assembly is connected to the frame.

[0009] Preferably: the positioning slide rail assembly comprises a sliding block and a guide rail; the guide rail is connected to the rack; one end of the sliding block is connected to the frame; and the sliding block is connected to the guide rail.

[0010] Preferably: a sensing component is provided inside the frame; and a sensing detection head of the sensing component faces the lifting inner cavity.

[0011] Preferably: a connecting rod is provided on the outer surface of the frame; an elastic buffer is provided on the connecting rod; and the elastic buffer abuts against the inside of the frame;

[0012] And / or, a fourth connecting frame is provided inside the frame; at least one supporting buffer is provided on the fourth connecting frame; and a projection of the supporting buffer toward the frame is located at the bottom of the frame.

[0013] Preferably: the lifting drive mechanism includes a driving motor, a first supporting rotating wheel, a supporting chain and a second supporting wheel; the first supporting rotating wheel is connected to the frame; the driving motor is connected to the top of the frame and is drivingly connected to the first supporting rotating wheel; the second supporting wheel is movably connected in the frame; the inner ends of the supporting chain are respectively connected to the first supporting rotating wheel and the second supporting wheel; and the outer ends of the supporting chain are connected to the car mechanism.

[0014] Preferably: the feeding mechanism comprises a second connecting frame, a second conveying roller and a second transmission wheel; the second connecting frame is connected to the side end of the frame; the number of the second conveying rollers is at least two and they are arranged side by side on the inner side of the second connecting frame; the second transmission wheel is connected to the side end of the second conveying roller; and two adjacent second transmission wheels are in transmission connection with each other;

[0015] And / or, the unloading mechanism includes a third connecting frame, a third conveying roller and a third transmission wheel; the third connecting frame is connected to the side end of the frame; the number of the third conveying rollers is at least two and they are arranged side by side on the inner side of the third connecting frame; the third transmission wheel is connected to the side end of the third conveying roller; and two adjacent third transmission wheels are transmission connected to each other.

[0016] Preferably: the transfer device also includes a first operating platform and a second operating platform; the first operating platform is connected to the bottom of the first position in the frame; the loading mechanism is connected to the first operating platform; the second operating platform is connected to the second position in the frame; the unloading mechanism is connected to the second operating platform.

[0017] The beneficial effect of the utility model lies in that the technical scheme adopts a loading mechanism to load the pole roll material to the car mechanism in the lifting cavity at a height of the first position, so that the pole roll material is placed in the storage cavity; and then the pole roll material is transferred to the unloading mechanism at a second position at a different height, thereby realizing rapid transportation at different heights, effectively avoiding excessive damage or contamination of the pole roll material during the transportation process, thereby improving the transportation efficiency, and can fully utilize the space and meet the safety production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following will refer to the attached Figures 1 to 8 To describe the features, advantages and technical effects of exemplary embodiments of the present utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of a transfer device according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a transfer device according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic structural diagram of a transfer device according to an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of a car mechanism of a transfer device according to an embodiment of the utility model;

[0023] Figure 5 It is a partial enlarged view of a transfer device according to an embodiment of the utility model;

[0024] Figure 6 It is a partial enlarged view of a transfer device according to an embodiment of the utility model;

[0025] Figure 7 This is a structural schematic diagram of a feeding mechanism of a transfer device according to an embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of the unloading mechanism of the transfer device according to one embodiment of the utility model.

[0027] In the figure: 1-frame; 101-fourth connecting frame; 102-support buffer; 103-sensing component; 2-lifting drive mechanism; 21-driving motor; 22-first supporting rotating wheel; 23-first bracket; 24-support chain; 25-second supporting wheel; 26-second bracket; 3-feeding mechanism; 31-second connecting frame; 32-second conveying roller; 321-second sealing glue; 33-second transmission wheel; 34-first supporting plate; 4-unloading mechanism; 41-third connecting frame; 42-third Conveying roller; 421-third sealant; 43-third transmission wheel; 44-second support plate; 5-car mechanism; 51-frame; 52-conveying assembly; 521-first conveying roller; 522-first sealant; 523-first transmission wheel; 524-first connecting frame; 53-baffle; 54-positioning slide rail assembly; 541-sliding block; 542-guide rail; 543-safety clamp; 551-connecting rod; 552-elastic buffer; 6-first operating table; 7-second operating table; 8-sealing plate. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of the present application, the term "and / or" is only a transfer device describing the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and multiple situations exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in a transfer device "or" relationship.

[0032] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0033] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] The following is combined with Figures 1 to 8 The utility model is further described in detail, but it is not intended to limit the utility model.

[0036] like Figures 2 to 3 As shown, in one embodiment of the utility model, the transfer device includes a frame 1, a lifting drive mechanism 2, a car mechanism 5, a loading mechanism 3 and a unloading mechanism 4; a lifting inner cavity 104 is provided in the frame 1; the car mechanism 5 is arranged in the lifting inner cavity 104, and a storage inner cavity 501 is provided in the car mechanism 5; the lifting drive mechanism 2 is connected to the frame 1 and connected to the car mechanism 5; the loading mechanism 3 is arranged at the first position of the frame 1 along the lifting direction, and is used to convey the pole roll; and the output end of the loading mechanism 3 is connected to the storage inner cavity 501; the unloading mechanism 4 is arranged at the second position of the frame 1 along the lifting direction, and is used to convey the pole roll; and the first position and the second position are at different heights; the input end of the unloading mechanism 4 is connected to the storage inner cavity 501. Wherein, the pole roll is a pole piece winding structure. Wherein, the first position is located above the second position, and further, the first position can be located directly above or obliquely above the second position.

[0037] The technical solution of the utility model adopts a loading mechanism to load the pole roll material to the car mechanism in the lifting cavity at the height of the first position, so that the pole roll material is placed in the storage cavity; and then the pole roll material is transferred to the unloading mechanism at the second position at a different height, thereby realizing rapid transportation at different heights, effectively avoiding excessive damage or contamination of the pole roll material during the transportation process, thereby improving the transportation efficiency, and can fully utilize the space and meet the safety production needs.

[0038] Specifically, in some embodiments, Figure 1 and 2 As shown, the transfer device also includes a first operating platform 6 and a second operating platform 7 and at least two sealing plates 8; the first operating platform 6 is connected to the bottom of the first position of the frame 1; the loading mechanism 3 is connected to the first operating platform 6; the second operating platform 7 is connected to the second position of the frame 1; the unloading mechanism 4 is connected to the second operating platform 7; the sealing plate 8 is arranged between the first operating platform 6 and the second operating platform 7; the sealing plate 8 is connected around the side end of the frame 1, and all the sealing plates 8 are sealed and connected to each other; the two ends of the sealing plate 8 are respectively sealed and connected to the first operating platform 6 and the second operating platform 7. In other words, all the sealing plates 8 are sealed and connected as a whole by sealant; and the two ends of the sealing plate 8 are respectively sealed and connected to the first operating platform 6 and the second operating platform 7 by sealant; thereby preventing the conveying space from being ventilated, avoiding the pole roll material from being contaminated, and thus improving the conveying efficiency and quality.

[0039] Specifically, in some embodiments, Figure 2 As shown, the lifting drive mechanism 2 includes a driving motor 21, a first supporting rotating wheel 22, a first bracket 23, a supporting chain 24, a second supporting wheel 25 and a second bracket 26; the first bracket 23 is connected to the top of the frame 1; the first supporting rotating wheel 22 is movably connected in the first bracket 23; the driving motor 21 is connected to the top of the frame 1 and is drivingly connected to the first supporting rotating wheel 22; the second bracket 26 is connected to the bottom of the frame 1; the second supporting wheel 25 is movably connected in the second bracket 26; the inner side end of the supporting chain 24 is respectively connected to the first supporting rotating wheel 22 and the second supporting wheel 25; and the outer side end of the supporting chain 24 is connected to the car mechanism 5. In other words, through the driving action of the driving motor 21, the supporting chain 24 is driven to rotate clockwise or counterclockwise, thereby driving the car mechanism 5 to rise or fall, thereby realizing the loading of the pole roll material and the homing movement of the car mechanism 5, thereby improving the transportation efficiency, making full use of the space, and meeting the safety production requirements.

[0040] Specifically, in some embodiments, Figure 3As shown, the car mechanism 5 includes a frame 51 and a conveying assembly 52; the frame 51 is connected to the lifting drive mechanism 2 (the support chain 24); the storage cavity 501 is arranged inside the frame 51; the conveying assembly 52 is arranged inside the storage cavity 501, and both are connected to the loading mechanism 3 and the unloading mechanism 4. Among them, the frame 51 is a square frame or other irregularly shaped frames. Among them, as Figure 4 As shown, the conveying assembly 52 includes a first conveying roller 521, a first transmission wheel 523 and a first connecting frame 524; the first connecting frame 524 is connected to the inside of the frame 51; the number of the first conveying rollers 521 is at least two, and they are arranged side by side on the first connecting frame 524; the number of the first transmission wheels 523 is at least two, and they are connected to the side ends of the first conveying rollers 521; and the two adjacent first transmission wheels 523 are connected in a transmission manner as a whole. In other words, the feeding mechanism 3 transmits the material to the first conveying roller 521 to achieve the transfer before lifting, thereby improving the handling efficiency. Furthermore, the first conveying roller 521 is provided with a first sealant 522; this structure can effectively prevent the metal friction from generating dust by coating the first sealant 522 on the surface of the second conveying roller 32, thereby improving the cleanliness of material transportation.

[0041] Wherein, in some embodiments, Figure 3 As shown, a baffle 53 is provided on the first conveying roller 521 at the opening in the conveying direction. That is, the baffle 53 is provided at the opening of the conveying assembly 52, so that the baffle 53 can be rotated downward when inputting or outputting materials, thereby avoiding obstruction to the materials; when lifting and feeding, the baffle 53 rotates upward, thereby achieving a blocking and limiting effect on the materials, thereby improving the stability and safety of lifting.

[0042] Specifically, in some embodiments, Figure 2 and 3 As shown; the car mechanism 5 also includes a positioning rail assembly 54; one end of the positioning rail assembly 54 is connected to the frame 1; the other end of the positioning rail assembly 54 is connected to the frame 51. Figures 4 to 6As shown, the positioning slide rail assembly 54 includes a sliding block 541 and a guide rail 542; the guide rail 542 is connected to the frame 1; one end of the sliding block 541 is connected to the frame 51; and the sliding block 541 is slidably connected to the guide rail 542. This structure prevents the frame 51 from falling off through the directional guiding effect of the sliding block 541 and the guide rail 542, thereby improving the transportation stability and safety. Among them, the positioning slide rail assembly 54 also includes a safety clamp 543, a trapezoidal groove is opened inside the safety clamp 543, one end of the guide rail 542 is located in the trapezoidal groove, the roller caliper contacts one end of the guide rail 542, the side of the lifting rod is fixedly connected to one end of the wire rope pressure plate, one end of the tension spring is fixedly connected to the wire rope pressure plate, and the other end of the tension spring is fixedly connected to the adjusting screw, and the adjusting screw is fixedly connected to the first safety clamp guide plate through a nut; the side of the frame 51 is rotatably connected to one end of the brake rod through an axle clamp, and the axle clamp is fixedly connected to the frame 51 through a screw, the first safety clamp guide plate and the second safety clamp guide plate are both fixedly connected to the side of the frame 51 through screws, and a waist-shaped hole is opened at the other end of the brake rod, and the side of the lifting rod is fixedly connected with an axle clamp, the brake rod and the axle clamp are rotatably connected through a bayonet and the bayonet can slide in the waist-shaped hole, the side of the brake rod is rotatably connected to the upper end of the pull rod through the axle clamp, the lower end of the pull rod is fixedly connected to the upper end of the connecting rod through a bolt, and the lower end of the connecting rod is rotatably connected to the roller caliper.

[0043] Specifically, in some embodiments, Figure 3 As shown, a sensing component 103 is disposed inside the frame 1; the sensing detection head of the sensing component 103 faces the lifting inner cavity 104. The sensing component 103 is a safety grating or an infrared sensor.

[0044] Specifically, in some embodiments, Figure 3 and 4 As shown in FIG. 5 , a fourth connecting frame 101 is provided inside the frame 1; at least one supporting buffer 102 is provided on the fourth connecting frame 101; and the projection of the supporting buffer 102 toward the frame 51 is located at the bottom of the frame 51. The supporting buffer 102 is a rubber or spring supporting buffer. In other words, a rubber or spring supporting buffer is provided directly below the bottom of the frame 51, and when the frame 51 moves downward, it can directly land on the supporting buffer 102, thereby reducing the impact stress of the buffer, thereby improving the stability and safety of use.

[0045] Specifically, in some embodiments, Figure 3 and 4 As shown, the outer surface of the frame 51 is provided with a connecting rod 551; the connecting rod 551 is provided with an elastic buffer 552; and the elastic buffer 552 abuts against the top of the frame 1, or the elastic buffer 552 abuts against the supporting buffer 102, or the elastic buffer 552 abuts against the inner bottom of the frame 1. Figure 4As shown, the connecting rod 551 and the elastic buffer 552 are respectively arranged at the bottom and the top of the frame 51. This structure can effectively alleviate the impact stress of the frame 51 when it rises or falls through the elastic buffer 552, thereby improving the stability and safety of use.

[0046] Specifically, in some embodiments, Figure 2 and 7 As shown, the feeding mechanism 3 includes a second connecting frame 31, a second conveying roller 32 and a second transmission wheel 33; the second connecting frame 31 is connected to the side end of the bottom of the frame 1; the number of the second conveying rollers 32 is at least two and they are arranged side by side on the inner side of the second connecting frame 31; the second transmission wheel 33 is connected to the side end of the second conveying roller 32; and the two adjacent second transmission wheels 33 are connected to each other by transmission. Further, the surface of the second conveying roller 32 is provided with a second sealant 321. By coating the second sealant 321 on the surface of the second conveying roller 32, the structure can effectively prevent dust from being generated by metal friction, thereby improving the cleanliness of material transportation.

[0047] Specifically, in some embodiments, Figure 2 and 8 As shown, the unloading mechanism 4 includes a third connecting frame 41, a third conveying roller 42 and a third transmission wheel 43; the third connecting frame 41 is connected to the side end of the top of the frame 1; the number of the third conveying rollers 42 is at least two and they are arranged side by side on the inner side of the third connecting frame 41; the third transmission wheel 43 is connected to the side end of the third conveying roller 42; and the two adjacent third transmission wheels 43 are mutually transmission-connected. Further, the surface of the second conveying roller 32 is provided with a third sealant 421. By coating the third sealant 421 on the surface of the second conveying roller 32, this structure can effectively prevent dust from being generated by metal friction, thereby improving the cleanliness of material transportation.

[0048] That is to say, this transfer device is used for the transportation of pole rolls in production processes such as lithium battery production pilot lines and test lines; first, use the first carrying structure (which can be a single-bar forklift) to simultaneously place two rolls of materials on the transfer pallet at the feed port of the first operating platform (first floor); press the start button to enable the loading mechanism of the first operating platform to transfer to the car mechanism 5; then the lifting drive mechanism 2 drives the car mechanism 5 to lift the material to the second operating platform 7 (second floor); the unloading mechanism 4 in the second operating platform 7 transports it to the discharge port to prompt and wait for manual unloading; wait for the operator to use the second carrying structure (which can be a single-bar forklift) to unload the material to the cache rack.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes 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 can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0050] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A transfer device, characterized in that: It includes a frame, a lifting drive mechanism, a car mechanism, a loading mechanism and a unloading mechanism; the frame is provided with a lifting inner cavity; the car mechanism is arranged in the lifting inner cavity, and a storage inner cavity is provided in the car mechanism; the lifting drive mechanism is connected to the frame and to the car mechanism; the loading mechanism is arranged at a first position of the frame along the lifting direction; and the output end of the loading mechanism is communicated with the storage inner cavity; the unloading mechanism is arranged at a second position of the frame along the lifting direction; and the first position and the second position are at different heights; the input end of the unloading mechanism is communicated with the storage inner cavity.

2. The transfer device according to claim 1, characterized in that: The car mechanism includes a frame and a conveying assembly; the frame is connected to the lifting drive mechanism; the storage cavity is arranged inside the frame; the conveying assembly is arranged inside the storage cavity, and both are connected to the loading mechanism and the unloading mechanism.

3. The transfer device according to claim 2, characterized in that: The conveying assembly includes a first conveying roller, a first transmission wheel and a first connecting frame; the first connecting frame is connected to the inside of the frame; the first conveying roller is arranged on the first connecting frame; and the first transmission wheel is connected to the side end of the first conveying roller.

4. The transfer device according to claim 2 or 3, characterized in that: The car mechanism also includes a positioning slide rail assembly; one end of the positioning slide rail assembly is connected to the frame; and the other end of the positioning slide rail assembly is connected to the frame.

5. The transfer device according to claim 4, characterized in that: The positioning slide rail assembly comprises a sliding block and a guide rail; the guide rail is connected to the rack; one end of the sliding block is connected to the frame; and the sliding block is connected to the guide rail.

6. The transfer device according to claim 1, characterized in that: An induction component is arranged inside the frame; an induction detection head of the induction component faces the lifting inner cavity.

7. The transfer device according to claim 2, characterized in that: The outer surface of the frame is provided with a connecting rod; the connecting rod is provided with an elastic buffer; and the elastic buffer abuts against the inside of the frame; And / or, a fourth connecting frame is provided inside the frame; at least one supporting buffer is provided on the fourth connecting frame; and a projection of the supporting buffer toward the frame is located at the bottom of the frame.

8. The transfer device according to claim 1, characterized in that: The lifting drive mechanism comprises a driving motor, a first supporting rotating wheel, a supporting chain and a second supporting wheel; the first supporting rotating wheel is connected to the frame; The driving motor is connected to the top of the frame and is drivingly connected to the first supporting rotating wheel; the second supporting wheel is movably connected in the frame; the inner ends of the supporting chain are respectively connected to the first supporting rotating wheel and the second supporting wheel; and the outer ends of the supporting chain are connected to the car mechanism.

9. The transfer device according to claim 1, characterized in that: The feeding mechanism comprises a second connecting frame, a second conveying roller and a second transmission wheel; the second connecting frame is connected to the side end of the frame; the number of the second conveying rollers is at least two and they are arranged side by side on the inner side of the second connecting frame; the second transmission wheel is connected to the side end of the second conveying roller; and two adjacent second transmission wheels are connected to each other in transmission; And / or, the unloading mechanism includes a third connecting frame, a third conveying roller and a third transmission wheel; the third connecting frame is connected to the side end of the frame; the number of the third conveying rollers is at least two and they are arranged side by side on the inner side of the third connecting frame; the third transmission wheel is connected to the side end of the third conveying roller; and two adjacent third transmission wheels are transmission connected to each other.

10. The transfer device according to claim 1, characterized in that: The transfer device also includes a first operating platform and a second operating platform; the first operating platform is connected to the bottom of the first position in the frame; the loading mechanism is connected to the first operating platform; the second operating platform is connected to the second position in the frame; and the unloading mechanism is connected to the second operating platform.

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