Automatic clamping mechanism for seedling tray supplying machine

Abstract

The utility model relates to an automatic clamping mechanism for a seedling tray supplying machine, and relates to the field of agricultural mechanical automation equipment, the automatic clamping mechanism comprises a support frame and a driving mechanism, the middle of the support frame is integrally connected with a fixing part, two clamping jaws are symmetrically hinged to the two ends of the support frame in the length direction, and the driving mechanism is arranged between the clamping jaws and the support frame; a plurality of vertical plates are arranged at the bottoms of the clamping jaws at intervals in the width direction, the vertical plates located on the same clamping jaw abut against the lower side of one end, in the length direction, of the seedling tray, and mounting supports are fixedly connected to the lower sides of the two ends, in the length direction, of the supporting frame; the end, away from the supporting plate, of the mounting support abuts against the upper side of the seedling tray, and a clamping structure used for driving the clamping jaw to move in the axis direction of the mounting support is arranged on the mounting support. The seedling tray can be automatically and stably clamped through electric control, the structure is simple, the operation burden of the tray supply mechanism is reduced, and the operation stability of the tray supply mechanism is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of agricultural machinery automation equipment, in particular to an automatic clamping mechanism for a seedling tray feeding machine. BACKGROUND

[0002] The automatic feeding machine is a device for automatically completing the work of rice seedling tray feeding and placing, and mainly functions to arrange seedling trays and supply the seedling trays to a rice seedling tray feeding and seeding assembly line. By reducing manual operation, the device can significantly reduce labor intensity and the number of workers. The device mainly comprises a tray feeding mechanism responsible for tray feeding and conveying and proximity switches and a lifting mechanism, a tray feeding mechanism comprising a tray feeding conveyor and a tray positioning reference plate and a tray feeding proximity switch, a controller and a photoelectric sensor. The controller controls the operation of the tray feeding driver and the lifting mechanism according to the signals of the sensors.

[0003] In the process of moving the clamping jaw of the tray feeding machine, the clamping jaw is required to stably clamp the seedling tray in order to arrange the seedling trays neatly on the tray feeding position. However, the clamping jaw in the prior art cannot completely clamp the seedling tray, and some structures capable of completely clamping the seedling tray are too large in size and too complex in structure, causing the tray feeding machine to be very heavy and unstable when moving the seedling tray, and the slow working progress of the tray feeding machine in the process of consuming too much energy. CONTENT OF THE INVENTION

[0004] In order to improve the clamping mechanism of the tray feeding machine, completely position the seedling tray while reducing the overall size of the clamping mechanism, and improve the practicability of the clamping mechanism of the tray feeding machine, the application provides an automatic clamping mechanism for a seedling tray feeding machine.

[0005] The automatic clamping mechanism for a seedling tray feeding machine provided by the application adopts the following technical scheme:

[0006] An automatic clamping mechanism for a seedling tray feeding machine is used to be installed in a seedling tray conveying device, comprising a support frame and a driving mechanism, a fixed part is integrally connected to the middle part of the support frame, two clamping jaws are symmetrically hinged to the two ends of the support frame along the length direction, the driving mechanism is arranged between the clamping jaws and the support frame, and is used to drive the clamping jaws to rotate, so as to realize the opening and clamping of the clamping jaws, a plurality of vertical plates are arranged at the bottom of the clamping jaw along the width direction, the plurality of vertical plates on the same clamping jaw are all in abutment with the lower side of one end of the seedling tray along the length direction, mounting brackets are fixedly connected to the lower sides of the two ends of the support frame along the length direction, the ends away from the support frame of the mounting brackets are in abutment with the upper side of the seedling tray, and the mounting brackets are provided with clamping structures used to drive the clamping jaws to move along the axis direction of the mounting brackets.

[0007] By adopting the technical scheme, the clamping jaw is contacted with and separated from the seedling tray in a rotating mode, so that the seedling tray is prevented from colliding with the vertical plates at the end of the clamping jaw during the clamping action of the clamping jaw in the case that the seedling tray is convenient to be clamped, and the clamping jaw is prevented from being damaged in the case that the seedling tray is completely clamped, and meanwhile, since the one end of the seedling tray is clamped by driving the clamping jaw to move through the clamping structure, the overall structure of the clamping mechanism is more simple, the operation is facilitated, the overall operation load and the operation stability of the clamping operation are reduced, and the economic practicability of the clamping mechanism is improved.

[0008] Optionally, the driving mechanism comprises a telescopic driving member and a mounting shaft arranged at one end of the mounting support away from the support frame, the telescopic driving member is hinged to the upper portion of the mounting support, two link rod portions are symmetrically and integrally connected to one end of the clamping jaw away from the vertical plates, the ends of the two link rod portions away from the vertical plates are hinged to the telescopic ends of the telescopic driving member, a hinge slot is arranged on the link rod portion, and the two ends of the mounting shaft are rotatably arranged in the two hinge slots.

[0009] By adopting the technical scheme, when the length of the telescopic driving member changes, the end of the telescopic driving member pushes the link rod portion and drives the end of the clamping jaw provided with the vertical plates to rotate around the mounting shaft, so that the rotation angle of the clamping jaw is controlled, the structure is simple and convenient to operate, and compared with the structure of driving the mounting shaft to rotate or directly driving the clamping jaw, the structure occupies smaller space and is convenient to install and disassemble.

[0010] Optionally, the clamping structure comprises a limiting rod connected with the two link rod portions at two ends, the hinge slot is a strip-shaped slot, the mounting shaft is slidingly arranged in the hinge slot, two rotation limiting slots are symmetrically arranged on the mounting support, and the two ends of the limiting rod are arranged out of the link rod portion along the width direction of the clamping jaw and are slidingly arranged in the two rotation limiting slots.

[0011] By adopting the technical scheme, when the axis of the clamping jaw is parallel to the axis of the mounting support, the length of the telescopic driving member is shortened to pull the clamping jaw to slide along the axis direction of the mounting support, and since the distance between the end of the clamping jaw and the bottom of the mounting support is shortened, the seedling tray is clamped, in this process, the mounting shaft slides in the hinge slot along the length direction of the hinge slot, so that the vertical movement of the clamping jaw is not hindered, and the limiting rod is slidingly arranged in the rotation limiting slot to limit the rotation and clamping of the clamping jaw and prevent the clamping jaw from excessively pressing the seedling tray.

[0012] Optionally, the rotation limiting groove comprises an upward extending vertical groove and an arc groove with an inner side facing upward, the lower end of the vertical groove is in communication with one end of the arc groove, and when the mounting shaft is located in the hinged groove near one side of the hinged end of the telescopic driving element, the mounting shaft is coaxial with the arc groove.

[0013] By adopting the above technical scheme, when the clamping jaw rotates, the limiting rod is located in the arc groove, at this time, the rotation angle of the arc groove limiting the clamping jaw is 0-90 degrees, so as to ensure that the clamping jaw will not rotate at will and collide with the mounting bracket; when the clamping jaw clamps the seedling tray with the mounting bracket, the limiting rod slides in the vertical groove, at this time, the clamping jaw cannot rotate, so as to prevent the seedling tray from being separated, and make the clamping operation more stable.

[0014] Optionally, the length of the vertical groove is equal to the distance that the clamping jaw can move along the extension direction of the arc groove.

[0015] By adopting the above technical scheme, the maximum clamping displacement of the clamping jaw along the vertical direction can be limited, so as to prevent the seedling tray from being excessively pressed and protect the seedling tray.

[0016] Optionally, the fixed part is provided with a connecting hole penetrating through, and one end of a rotating shaft for connecting the driving element to move the support frame and the seedling tray connected with the support frame is rotatably arranged in the connecting hole.

[0017] By adopting the above technical scheme, the whole clamping mechanism is connected with the driving device, so that the whole clamping mechanism can be moved to a predetermined position to clamp and release the seedling tray, and the convenience and stability of the seedling tray movement are improved.

[0018] In summary, the present application has at least one of the following beneficial technical effects:

[0019] 1. The two clamping jaws of the present application clamp the two ends of the seedling tray, and the support frame and the seedling tray clamped by the clamping jaws are moved together by the rotating shaft, so that the stable clamping of the seedling tray and the convenient movement and quick clamping of the seedling tray are realized;

[0020] 2. The telescopic driving element of the present application can rotate and move the clamping jaw vertically, so that the integrated control of the clamping jaw is realized, the structure is simple and convenient to move, the energy consumption is small, and the economic practicality and stability are high;

[0021] 3. The movement range of the clamping jaw is limited during the movement and rotation of the clamping jaw, so that the clamping jaw can avoid colliding with other parts and causing damage, and the clamping jaw can also avoid excessively clamping the seedling tray. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1It is the overall structure schematic diagram of the automatic clamping mechanism for the seedling tray feeding machine.

[0023] Figure 2 It is the overall schematic diagram of the clamping jaw connecting structure of the automatic clamping mechanism for the seedling tray feeding machine.

[0024] Figure 3 It is the structure view of the clamping jaw of the automatic clamping mechanism for the seedling tray feeding machine.

[0025] Figure 4 It is Figure 2 The enlarged view at A in FIG.

[0026] Figure 5 It is the position schematic diagram of the clamping jaw of the automatic clamping mechanism for the seedling tray feeding machine.

[0027] Mark 1, support frame; 11, fixed part; 111, connecting hole; 12, rotating shaft; 2, driving mechanism; 21, telescopic driving part; 22, mounting shaft; 3, clamping jaw; 31, vertical plate; 32, connecting rod part; 321, hinged groove; 4, mounting bracket; 5, clamping structure; 51, limiting rod; 52, rotating limiting groove; 521, vertical groove; 522, arc groove. DETAILED DESCRIPTION

[0028] The following will be described in detail in combination with the accompanying Figures 1-5 The application will be further described in detail.

[0029] The embodiment of the application discloses an automatic clamping mechanism for a seedling tray feeding machine.

[0030] Referring to Figure 1 An automatic clamping mechanism for a seedling tray feeding machine is used to be installed in a seedling tray conveying device to move the position of the seedling tray. The automatic clamping mechanism specifically comprises a support frame 1 and a driving mechanism 2 for outputting power. The support frame 1 is mainly a straight or symmetrically bent rod member to the same side. The length of the support frame 1 in the transverse direction is equal to the length of the seedling tray, and a fixed part 11 for moving the support frame 1 is integrally connected to the middle of the support frame 1 in the length direction. The fixed part 11 is provided with a connecting hole 111, and one end of a rotating shaft 12 is rotatably connected in the connecting hole 111. The rotating shaft 12 is connected with the external driving mechanism 2 to drive the whole clamping mechanism to move to the position of the seedling tray to save labor.

[0031] Referring to Figure 1 and Figure 2Further, two clamping jaws 3 are symmetrically arranged at the two ends of the support frame 1, and are used to clamp the seedling tray together. The driving mechanism 2 is provided with two driving mechanisms, which are respectively arranged at the two ends of the support frame 1, and are used to drive the rotation and vertical movement of the clamping jaw 3, so as to realize the clamping and opening of the clamping jaw 3. Specifically, the two ends of the support frame 1 along the length direction are symmetrically fixedly connected with two mounting brackets 4, and the two clamping jaws 3 are respectively hinged to the lower ends of the two mounting brackets 4. Further, the mounting bracket 4 and the clamping jaw 3 are symmetrically provided with a clamping structure 5, which is used to clamp the seedling tray, so as to avoid the seedling tray from falling during movement.

[0032] Referring to Figure 3 Specifically, the end of the clamping jaw 3 away from the hinged position is integrally connected with a plurality of vertical plates 31 along the width direction, and the plurality of vertical plates 31 are perpendicular to each other. When the clamping mechanism clamps the seedling tray, the clamping jaw 3 is in the same vertical plane as the mounting bracket 4 through rotation. At this time, the upper and lower sides of the end of the seedling tray are respectively abutted against the plurality of vertical plates 31 and the bottom side of the mounting bracket 4.

[0033] Referring to Figure 2 and Figure 3 Specifically, the driving mechanism 2 includes a telescopic driving member 21 hinged to the mounting bracket 4 near one end of the support frame 1, and a mounting shaft 22 rotatably arranged at the mounting bracket 4 away from one end of the support frame 1. The end of the clamping jaw 3 away from the plurality of vertical plates 31 is symmetrically and integrally connected with two connecting rod portions 32, and the two connecting rod portions 32 are respectively and symmetrically provided with two coaxial hinged grooves 321, and the mounting shaft 22 is rotatably arranged in the two hinged grooves 321 to realize the hinging of the clamping jaw 3. The end of the connecting rod portion 32 away from the vertical plate 31 is flush with the end of the clamping jaw 3, and is hinged to the telescopic end of the telescopic driving member 21. When the telescopic end of the telescopic driving member 21 is extended or shortened, the connecting rod portion 32 will drive the clamping jaw 3 to rotate around the mounting shaft 22.

[0034] It should be noted that the telescopic driving member 21 in the present application refers to an electrical member capable of generating driving force and having one end that can be telescopic, including but not limited to a pneumatic cylinder, an oil cylinder, a telescopic rod, etc.

[0035] Referring to Figure 3 and Figure 5 Further, the clamping structure 5 specifically includes a limiting rod 51 fixedly connected with the two connecting rod portions 32 at the two ends. The above-mentioned hinged groove 321 is a strip-shaped groove, and the mounting shaft 22 can slide in the hinged groove 321 along the length direction of the hinged groove 321. The mounting bracket 4 is symmetrically provided with two rotation limiting grooves 52, the axial length of the limiting rod 51 is greater than the width of the mounting bracket 4, and the two ends of the limiting rod 51 are respectively and slidably arranged in the two rotation limiting grooves 52, so as to limit the rotation of the clamping jaw 3, and prevent the clamping jaw 3 from colliding with the seedling tray and the mounting bracket 4, thereby causing damage.

[0036] Referring to Figure 4 And Figure 5 Further, the rotation limiting groove 52 comprises a vertical groove 521 and an arc groove 522, which are integrally connected and arranged along the axis of the mounting bracket 4. The arc groove 522 is in the shape of a semicircle and has the same direction as the extension direction of the vertical groove 521. The vertical groove 521 and the arc groove 522 are connected at one side near the hinge position of the clamping jaw 3. The length of the vertical groove 521 is equal to the length of the clamping jaw 3 along the axis of the mounting bracket 4.

[0037] When the telescopic driving member 21 drives the clamping jaw 3 to rotate, the mounting shaft 22 is located at one end of the hinge groove 321 near the hinge position of the clamping jaw 3. At this time, the mounting shaft 22 is coaxial with the arc groove 522, and the clamping jaw 3 rotates around the mounting shaft 22. Since the limiting rod 51 slides in the arc groove 522 at this time, the rotation angle range of the clamping jaw 3 is limited to 0-90 degrees.

[0038] When the telescopic driving member 21 drives the clamping jaw 3 to clamp, the clamping jaw 3 is coaxial with the mounting bracket 4. At this time, under the pulling of the telescopic driving member 21, the clamping jaw 3 moves up and down along the axis of the mounting bracket 4. In this process, the limiting rod 51 slides in the vertical groove 521, and the mounting shaft 22 slides in the hinge groove 321, and the movement distance of the clamping jaw 3 is limited by the vertical groove 521.

[0039] The implementation principle of the automatic clamping mechanism for the seedling tray feeding machine is as follows:

[0040] When the clamping jaw 3 needs to clamp the seedling tray, the telescopic driving member 21 is first used to drive the clamping jaw 3 to rotate. At this time, the clamping jaw 3 rotates around the mounting shaft 22, the limiting rod 51 slides in the arc groove 522, and the rotation angle range of the clamping jaw 3 is limited to 0-90 degrees. Then, the clamping jaw 3 is rotated to a position where the axis is parallel to the axis of the mounting bracket 4.

[0041] Then, the telescopic end of the telescopic driving member 21 continues to shorten, and the limiting rod 51 enters the vertical groove 521. At this time, the clamping jaw 3 can move up and down under the driving of the telescopic driving member 21, and the mounting shaft 22 slides in the hinge groove 321. When the limiting rod 51 moves to one end of the vertical groove 521 away from the arc groove 522, the vertical plate 31 on the clamping jaw 3 and the bottom of the mounting bracket 4 are respectively abutted against the upper and lower sides of one end of the seedling tray. The two clamping jaws 3 located on the two symmetrically arranged mounting brackets 4 jointly act, thereby realizing stable clamping of the seedling tray.

[0042] Then, under the driving of the external driving member, the rotating shaft 12 moves to a position, and drives the support frame 1 and the seedling tray to move to a predetermined position, thereby realizing clamping and displacement of the seedling tray.

[0043] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An automatic clamping mechanism for a tray feeding machine of a seedling tray, which is used to be installed in a seedling tray transportation device, and is characterized in that: The utility model provides a support frame (1) and drive mechanism (2) including, the middle part of support frame (1) is integrally connected with fixed part (11), two ends along the length direction of support frame (1) are symmetrically hinged with two clamping jaw (3), drive mechanism (2) is arranged between clamping jaw (3) and support frame (1), is used for driving clamping jaw (3) rotation, realizes the opening and clamping of clamping jaw (3), the bottom of clamping jaw (3) is spaced apart and is provided with a plurality of vertical plate (31) along the width direction, a plurality of vertical plate (31) on the same clamping jaw (3) all with seedling tray along the length direction one end downside abut, both ends along the length direction of support frame (1) downside all are connected and are fixed with the installation support (4) of fixed part (11), the upper side of seedling tray is abutted to the one end of installation support (4) away from support frame (1), installation support (4) is provided with the clamping structure (5) for driving clamping jaw (3) along the axis direction of installation support (4) moves.

2. The automatic gripping mechanism for the seedling tray supplying machine according to claim 1, wherein: Drive mechanism (2) includes telescopic drive part (21) and the installation shaft (22) of being arranged at the one end of installation support (4) away from support frame (1), telescopic drive part (21) is hinged on the upper portion of installation support (4), the one end of clamping jaw (3) away from a plurality of vertical plate (31) is symmetrically integrally connected with connecting rod part (32), both ends of two connecting rod parts (32) away from vertical plate (31) are hinged with the telescopic end of telescopic drive part (21), the connecting rod part (32) is provided with hinged groove (321), both ends of installation shaft (22) are respectively rotated and are arranged in two hinged grooves (321).

3. The automatic gripping mechanism for the seedling tray supplying machine according to claim 2, wherein: Clamping structure (5) includes the limiting rod (51) of being connected with two connecting rod parts (32) respectively, the hinged groove (321) is strip slot, the installation shaft (22) is slidably arranged in the hinged groove (321), the installation support (4) is symmetrically provided with two rotation limiting grooves (52), both ends of limiting rod (51) are along the width direction of clamping jaw (3) and are arranged in two rotation limiting grooves (52) respectively.

4. The automatic gripping mechanism for the seedling tray supplying machine according to claim 3, wherein: Rotation limiting groove (52) includes the vertical slot (521) of extending upwards and the arc slot (522) of inner side upwards, the lower end of vertical slot (521) is communicated with one end of arc slot (522), when installation shaft (22) is located in hinged groove (321) near the hinged end of telescopic drive part (21) one side, installation shaft (22) is coaxial with arc slot (522).

5. The automatic gripping mechanism for the seedling tray supplying machine according to claim 4, wherein: The length of vertical slot (521) is equal to the distance that clamping jaw (3) can move along the extension direction of arc slot (522).

6. The automatic gripping mechanism for the tray feeder according to claim 1, wherein: Fixed part (11) is provided with connecting hole (111), and one end of rotating shaft (12) for connecting drive part is rotatably arranged in connecting hole (111), so as to move support frame (1) and seedling tray connected with support frame (1).

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