Grabbing mechanism for feed stacking
By designing gripping mechanisms for the left and right suspensions, the problem of gripping feed in the gaps of roller conveyors was solved, achieving flexible width adjustment and strong specialization, adapting to roller conveyors with different gaps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TONGYUAN FEED CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-01
AI Technical Summary
Existing robotic arms struggle to effectively grasp feed within the gaps of roller conveyors, resulting in difficulties in gripping.
A gripping mechanism including a left suspension and a right suspension was designed, equipped with left and right clamping arms and L-shaped claw hooks. The gripping width can be adjusted by linear guide rail and bidirectional screw drive, and an elastic support platform is provided to enhance the flexibility and adaptability of gripping.
It enables convenient feed grabbing on roller conveyors with gaps between adjacent rollers, with adjustable grabbing width, strong adaptability, high specialization, and complete functions.
Smart Images

Figure CN224185356U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical equipment technology, and more specifically, it relates to a gripping mechanism for stacking feed. Background Technology
[0002] Packed feed is typically conveyed by a conveyor belt to its target location, where it is then handled by a robotic arm. The target location is often a roller conveyor, with gaps between adjacent rollers. The gripper on the robotic arm must be able to reach into these gaps; otherwise, it will be difficult to pick up the feed. Therefore, this invention proposes a feed stacking gripping mechanism. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a gripping mechanism for stacking feed, which has the characteristics of convenient gripping and strong specialization.
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is as follows: The feed stacking gripping mechanism involved in this utility model includes a fixed platform, and a left suspension and a right suspension are provided below the fixed platform;
[0005] The left suspension is provided with a left wing extending to the left. The inner end of the left wing is rotatably connected to two left clamping arms arranged symmetrically front and back. A left spoke is connected between the two left clamping arms. The left spoke is provided with several left L-shaped claw hooks arranged at intervals front and back. A left connecting rod is also connected between the two left clamping arms. A left push rod cylinder is rotatably connected to the outer end of the left wing. The telescopic rod end of the left push rod cylinder is hinged to the left connecting rod.
[0006] The right suspension is provided with a right wing extending to the right. The inner end of the right wing is rotatably connected to two right clamping arms arranged symmetrically front to back. A right spoke is connected between the two right clamping arms. The right spoke is provided with several right L-shaped claw hooks arranged at intervals front to back. A right connecting rod is also connected between the two right clamping arms. A right push rod cylinder is rotatably connected to the outer end of the right wing. The end of the extension rod of the right push rod cylinder is hinged to the right connecting rod.
[0007] The present invention is further configured as follows: a left linear guide rail extending left and right is provided on the fixed platform, a left linear slider is slidably connected on the left linear guide rail, and the left suspension is mounted on the left linear slider; a right linear guide rail extending left and right is provided on the fixed platform, a right linear slider is slidably connected on the right linear guide rail, and the right suspension is mounted on the right linear slider; a mounting base is provided on the fixed platform, and a bidirectional lead screw with its axis extending left and right is rotatably connected to the mounting base; the bidirectional lead screw includes a first lead screw and a second lead screw with opposite directions of rotation; a first lead screw nut is threadedly connected to the first lead screw, and a second lead screw nut is threadedly connected to the second lead screw; the left suspension is connected to the first lead screw nut, and the right suspension is connected to the second lead screw nut; a power assembly for controlling rotation is driven and connected to the bidirectional lead screw.
[0008] The present invention is further configured such that: the powertrain includes a motor, a drive gear and a driven gear, the driven gear is coaxially arranged on the bidirectional lead screw, the drive gear is arranged on the output shaft of the motor, the motor is arranged on the mounting base, and the drive gear meshes with the driven gear.
[0009] The present invention is further configured such that: a support platform is provided below the fixed platform, located between the left clamping arm and the right clamping arm, and a side frame is connected between the support platform and the fixed platform.
[0010] The present invention is further configured such that an elastic element is arranged at the end of the support platform facing away from the fixed platform.
[0011] The present invention is further configured such that the elastic element is a soft rubber column.
[0012] The present invention is further configured such that: the distance between two adjacent left L-shaped claw hooks is equal; and the distance between two adjacent right L-shaped claw hooks is equal.
[0013] In summary, this utility model has the following beneficial effects:
[0014] 1. It can be used with roller conveyors where there is a gap between adjacent rollers, making it easy to grip and highly specialized.
[0015] 2. The gripping width is adjustable, making it easy to adjust and highly adaptable. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation
[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0019] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0020] Example 1
[0021] See Figure 1 and Figure 2 As shown, the feed stacking gripping mechanism involved in this embodiment includes a fixed platform 1, and a left suspension 2 and a right suspension 3 are provided below the fixed platform 1;
[0022] The left suspension 2 is provided with a left wing 4 extending to the left. The inner end of the left wing 4 is rotatably connected to two left clamping arms 5 arranged symmetrically front and back. A left spoke 6 is connected between the two left clamping arms 5. The left spoke 6 is provided with several left L-shaped claw hooks 7 arranged equidistantly front and back. A left connecting rod 8 is also connected between the two left clamping arms 5. A left push rod cylinder 9 is rotatably connected to the outer end of the left wing 4. The telescopic rod end of the left push rod cylinder 9 is hinged to the left connecting rod 8.
[0023] The right suspension 3 is provided with a right wing 10 extending to the right. The inner end of the right wing 10 is rotatably connected to two right clamping arms 11 arranged symmetrically front and back. A right spoke 12 is connected between the two right clamping arms 11. The right spoke 12 is provided with several right L-shaped claw hooks 13 arranged equidistantly front and back. A right connecting rod 14 is also connected between the two right clamping arms 11. The outer end of the right wing 10 is rotatably connected to a right push rod cylinder 15. The telescopic rod end of the right push rod cylinder 15 is hinged to the right connecting rod 14.
[0024] Furthermore, the fixed platform 1 is provided with a left linear guide rail 16 extending left and right, and a left linear slider 17 is slidably connected to the left linear guide rail 16. The left suspension 2 is mounted on the left linear slider 17. The fixed platform 1 is provided with a right linear guide rail 18 extending left and right, and a right linear slider 19 is slidably connected to the right linear guide rail 18. The right suspension 3 is mounted on the right linear slider 19. The fixed platform 1 is provided with a mounting base 20, and a bidirectional lead screw 21 with its axis extending left and right is rotatably connected to the mounting base 20. The bidirectional lead screw 21 includes a first lead screw 22 and a second lead screw 23 with opposite rotation directions. A first lead screw nut 24 is threaded onto the lead screw 22, and a second lead screw nut 25 is threaded onto the second lead screw 23. The left suspension 2 is connected to the first lead screw nut 24, and the right suspension 3 is connected to the second lead screw nut 25. A power assembly for controlling rotation is driven onto the bidirectional lead screw 21. The power assembly includes a motor 26, a drive gear 27, and a driven gear 28. The driven gear 28 is coaxially mounted on the bidirectional lead screw 21. The drive gear 27 is mounted on the output shaft of the motor 26. The motor 26 is mounted on the mounting base 20. The drive gear 27 meshes with the driven gear 28.
[0025] In this embodiment, extending the left push rod cylinder 9 causes the left gripping arm 5, carrying the left L-shaped claw hook 7, to rotate inward. Extending the right push rod cylinder 15 causes the right gripping arm 11, carrying the right L-shaped claw hook 13, to rotate inward, thereby enabling the gripping mechanism to perform a clamping action. Conversely, extending the right push rod cylinder 15 causes the gripping arm 5 to rotate inward.
[0026] Specifically, by operating motor 26, the drive gear 27 rotates clockwise. Through inter-mechanism transmission, this causes the left suspension 2 to move away from the right suspension 3 and the right suspension 3 to move away from the left suspension 2, increasing the effective clamping width. By operating motor 26, the drive gear 27 rotates counterclockwise. Through inter-mechanism transmission, this causes the left suspension 2 to move towards the right suspension 3 and the right suspension 3 to move towards the left suspension 2, decreasing the effective clamping width.
[0027] The linear guide rail, in conjunction with the linear slider, serves as a sliding guide.
[0028] Example 2
[0029] See Figure 1 and Figure 2 As shown, the feed stacking gripping mechanism involved in this embodiment is further configured based on embodiment 1, wherein a support platform 29 is provided below the fixed platform 1 between the left clamping arm 5 and the right clamping arm 11, and a side frame 30 is connected between the support platform 29 and the fixed platform 1.
[0030] Furthermore, an elastic element 31 is arranged at the end of the support platform 29 facing away from the fixed platform 1. The elastic element 31 is a soft rubber column.
[0031] In this embodiment, the support platform 29 is used to support and tighten the upper surface of the material when gripping it.
[0032] The elastic element 31 acts as an elastic pad.
[0033] The feed stacking gripping mechanism involved in this utility model can be used in conjunction with roller conveyors with gaps between adjacent rollers. It is convenient to grip, highly specialized, and the gripping width is adjustable, making it easy to adjust, highly adaptable, and with complete overall functions and strong practicality.
[0034] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.
[0035] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 based on the specific circumstances.
[0036] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A feed stacking gripping mechanism, comprising a fixed platform, characterized in that: The fixed platform is equipped with a left suspension and a right suspension below it; The left suspension is provided with a left wing extending to the left. The inner end of the left wing is rotatably connected to two left clamping arms arranged symmetrically front and back. A left spoke is connected between the two left clamping arms. The left spoke is provided with several left L-shaped claw hooks arranged at intervals front and back. A left connecting rod is also connected between the two left clamping arms. A left push rod cylinder is rotatably connected to the outer end of the left wing. The telescopic rod end of the left push rod cylinder is hinged to the left connecting rod. The right suspension is provided with a right wing extending to the right. The inner end of the right wing is rotatably connected to two right clamping arms arranged symmetrically front to back. A right spoke is connected between the two right clamping arms. The right spoke is provided with several right L-shaped claw hooks arranged at intervals front to back. A right connecting rod is also connected between the two right clamping arms. A right push rod cylinder is rotatably connected to the outer end of the right wing. The end of the extension rod of the right push rod cylinder is hinged to the right connecting rod.
2. The feed stack grabbing mechanism according to claim 1, characterized in that: The fixed platform is provided with a left linear guide rail extending left and right, and a left linear slider is slidably connected to the left linear guide rail. The left suspension is mounted on the left linear slider. The fixed platform is provided with a right linear guide rail extending left and right, and a right linear slider is slidably connected to the right linear guide rail. The right suspension is mounted on the right linear slider. The fixed platform is provided with a mounting base, and a bidirectional lead screw with its axis extending left and right is rotatably connected to the mounting base. The bidirectional lead screw includes a first lead screw and a second lead screw with opposite directions of rotation. A first lead screw nut is threaded onto the first lead screw, and a second lead screw nut is threaded onto the second lead screw. The left suspension is connected to the first lead screw nut, and the right suspension is connected to the second lead screw nut. A power assembly for controlling rotation is driven and connected to the bidirectional lead screw.
3. The feed stack grabbing mechanism according to claim 2, characterized in that: The powertrain includes a motor, a drive gear, and a driven gear. The driven gear is coaxially mounted on the double-acting lead screw. The drive gear is mounted on the output shaft of the motor. The motor is mounted on a mounting base. The drive gear meshes with the driven gear.
4. The feed stacking gripping mechanism according to any one of claims 1-3, characterized in that: Below the fixed platform is a support platform located between the left and right clamping arms, and a side frame connects the support platform to the fixed platform.
5. The feed stacking gripping mechanism according to claim 4, characterized in that: An elastic element is arranged at the end of the support platform facing away from the fixed platform.
6. The feed stacking gripping mechanism according to claim 5, characterized in that: The elastic element is a soft rubber column.
7. The feed stack grabbing mechanism according to claim 1, characterized in that: The distance between two adjacent left L-shaped claw hooks is equal; the distance between two adjacent right L-shaped claw hooks is equal.