Oscillating bar mechanism

Abstract

The utility model relates to the technical field of swing rods, and particularly discloses a swing rod mechanism which comprises a supporting plate. A connecting frame is fixedly connected to one side of the bottom of the supporting plate, a rotating motor is fixedly connected to the middle of the inner bottom wall of the connecting frame through bolts, and a swing mechanism is arranged at the output end of the rotating motor. The device at least has the following beneficial effects that through the arrangement of the swing mechanism and the telescopic mechanism, the threaded extension rod is rotated, the threaded extension rod drives the fixed plate to move, the fixed plate drives the extension frame and the extension plate to extend out from the interiors of the placing frame and the contact plate, and when fragile products are distributed, the damping plate is in contact with the products; the impact force is further reduced, the impact force pushes the damping plate and the contact plate to move backwards, the compression spring is extruded, the contact potential energy is absorbed, then the impact force is further reduced, and the product is prevented from being damaged due to large deflection force.

Description

Technical Field

[0001] This utility model relates to the field of pendulum technology, specifically to a pendulum mechanism. Background Technology

[0002] The swing arm refers to the connecting component that connects the swing shaft and the impact hammer. The swing arm mechanism is a reciprocating swing mechanism. Currently, swing arm mechanisms are commonly used in sorting mechanisms to weigh products and then move them into the corresponding sorting bins. However, different lengths of swing arms are required for different products during sorting. The existing solution is usually to replace the swing arms with different lengths, but this is cumbersome and time-consuming. Furthermore, the swing arm can easily damage fragile products due to its large deflection force, affecting the product qualification rate. Therefore, we propose a new swing arm mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a rocker arm mechanism to solve the problem mentioned in the background art that the process of changing rocker arms of different lengths is cumbersome and time-consuming.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a swing arm mechanism, including a support plate; a connecting frame is fixedly connected to one side of the bottom of the support plate, the support plate can fix the position of the connecting frame, a rotating motor is fixedly connected to the middle of the inner bottom wall of the connecting frame by bolts, the connecting frame can fix the position of the rotating motor, and a swing mechanism is provided at the output end of the rotating motor.

[0005] The swing mechanism includes a first cam fixedly connected to the output end of a rotating motor, which can fix the position of the first cam. A first connecting tooth is fixedly connected to one side of the top of the first cam, which can fix the position of the first connecting tooth. A second connecting tooth meshes between the teeth of the first connecting tooth. A second cam is fixedly connected to the middle of the top of the second connecting tooth, which can fix the position of the second cam. A rotating ring is attached to one end of the first cam. A first gear meshes inside the rotating ring. A second gear meshes between the teeth of the first gear. A connecting rod is fixedly connected to the middle of the top of the second gear, which can fix the position of the second gear. A third gear is fixedly connected to one end of the connecting rod, which can fix the position of the third gear. A toothed ring meshes between the teeth of the third gear. A protective ring is fixedly connected to the surface of the toothed ring, which can fix the position of the protective ring. A swing rod is fixedly connected to the middle of the top of the protective ring, which can fix the position of the swing rod. A telescopic mechanism is provided on one side of the front of the swing rod.

[0006] The telescopic mechanism includes a placement frame fixedly connected to one side of a swing rod, the swing rod fixing the position of the placement frame. An extension frame is sleeved inside the placement frame, the placement frame restricting the position of the extension frame. A fixing plate is fixedly connected to one end of the extension frame, the extension frame fixing the position of the fixing plate. A threaded extension rod is fixedly connected to the middle of one end of the placement frame, the placement frame fixing the position of the threaded extension rod. Telescopic rods are fixedly connected to the upper and lower parts of one end of the placement frame, the placement frame fixing the position of the telescopic rods. A spring rod is fixedly connected inside the placement frame, the placement frame fixing the position of the spring rod. A contact plate is fixedly connected to one end of the spring rod, the spring rod fixing the position of the contact plate. An extension plate is sleeved inside the contact plate, the contact plate restricting the position of the extension plate. A shock-absorbing plate is fixedly connected to one end of the contact plate, the contact plate fixing the position of the shock-absorbing plate.

[0007] The placement rack has an internal slot that matches the contact plate, and the extension rack has an internal slot that matches the extension plate.

[0008] One end of each of the two telescopic rods is fixedly connected to a fixing plate. The fixing plate is sleeved on one end of the surface of the threaded extension rod. A slot adapted to the threaded extension rod is opened in the middle of one end of the fixing plate.

[0009] One end of the fixed plate is slidably connected to the inside of one end of the swing rod, and one end of the swing rod has a groove that matches the fixed plate.

[0010] The bottom of the second connecting tooth is rotatably connected to a connecting plate, which can restrict the position of the second connecting tooth. The bottom of both sides of the connecting plate is fixedly connected to the top of the support plate, which can fix the position of the connecting plate.

[0011] The protective ring has a protective box rotatably connected to its bottom, which restricts the position of the protective ring. The bottom of the protective box is fixedly connected to one side of the top of the support plate, which fixes the position of the protective box. The connecting rod is rotatably connected to one side of the top of the protective box, which restricts the position of the connecting rod.

[0012] This utility model has at least the following beneficial effects: by setting up a swing mechanism and a telescopic mechanism, rotating the threaded extension rod causes the fixed plate to move, and the fixed plate causes the extension frame and the extension plate to extend out from inside the placement frame and the contact plate. When sorting fragile products, the shock-absorbing plate contacts the product, reducing the impact force in one step. The impact force pushes the shock-absorbing plate and the contact plate to move backward, squeezing and compressing the spring, absorbing the contact potential energy, and further reducing the impact force, preventing the product from being damaged due to a large deflection force. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the swing mechanism of this utility model;

[0016] Figure 4 This is a top view of the disassembled swing mechanism of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the telescopic mechanism of this utility model.

[0018] Figure 6 This is a schematic diagram of the split three-dimensional second-view structure of the telescopic mechanism of this utility model.

[0019] In the diagram: 1. Support plate; 2. Connecting frame; 3. Rotating motor; 4. Swinging mechanism; 41. First cam; 42. First connecting tooth; 43. Second connecting tooth; 44. Second cam; 45. Rotating ring; 46. First gear; 47. Second gear; 48. Connecting rod; 49. Third gear; 410. Gear ring; 411. Protective ring; 412. Swinging rod; 5. Telescopic mechanism; 51. Placement frame; 52. Extension frame; 53. Fixing plate; 54. Threaded extension rod; 55. Telescopic rod; 56. Spring rod; 57. Contact plate; 58. Extension plate; 59. Shock-absorbing plate; 6. Connecting plate; 7. Protective box. Detailed Implementation

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] Please see Figures 1 to 6This utility model provides a technical solution: a swing arm mechanism, including a support plate 1; a connecting frame 2 is fixedly connected to one side of the bottom of the support plate 1, the support plate 1 can fix the position of the connecting frame 2, the connecting frame 2 can place a rotating motor 3, the middle of the inner bottom wall of the connecting frame 2 is fixedly connected to the rotating motor 3 by bolts, the connecting frame 2 can fix the position of the rotating motor 3 to ensure that the position of the rotating motor 3 will not change, the output end of the rotating motor 3 is provided with a swing mechanism 4, the rotating motor 3 is the output mode of the device, the swing mechanism 4 includes a first cam 41 fixedly connected to the output end of the rotating motor 3, the output end of the rotating motor 3 can fix the position of the first cam 41, and the output end of the rotating motor 3 can drive the first cam 41 to rotate. A first connecting tooth 42 is fixedly connected to one side of the top of the first cam 41. The first cam 41 can fix the position of the first connecting tooth 42. Rotation of the first cam 41 can drive the first connecting tooth 42 to rotate. A second connecting tooth 43 meshes between the teeth of the first connecting tooth 42. The first connecting tooth 42 can mesh with the second connecting tooth 43 to rotate. A second cam 44 is fixedly connected to the middle of the top of the second connecting tooth 43. The second connecting tooth 43 can fix the position of the second cam 44. Rotation of the second connecting tooth 43 can drive the second cam 44 to rotate. That is, the first cam 41 and the second cam 44 rotate together. A rotating ring 45 is attached to one end of the first cam 41. Rotation of the first cam 41 can push the lower side of the surface of the rotating ring 45, pushing the rotating ring 45... 5. The rotating ring 45 rotates, and a first gear 46 is meshed inside it. The rotation of the rotating ring 45 allows the first gear 46 to rotate. A second gear 47 meshes between the teeth of the first gear 46, and the rotation of the first gear 46 allows the second gear 47 to rotate. A connecting rod 48 is fixedly connected to the middle of the top of the second gear 47, and the connecting rod 48 can fix the position of the second gear 47. The rotation of the second gear 47 can drive the connecting rod 48 to rotate. A third gear 49 is fixedly connected to one end of the connecting rod 48, and the connecting rod 48 can fix the position of the third gear 49. The rotation of the connecting rod 48 can drive the third gear 49 to rotate. That is, the second gear 47 drives the third gear 49 to rotate. A toothed ring 410 meshes between the teeth of the third gear 49. The third gear 49 meshes with the gear ring 410 to rotate. A protective ring 411 is fixedly connected to the surface of the gear ring 410, which can fix the position of the protective ring 411. The gear ring 410 can drive the protective ring 411 to rotate. A swing rod 412 is fixedly connected to the middle of the top of the protective ring 411, which can fix the position of the swing rod 412. Rotation of the protective ring 411 can drive the swing rod 412 to rotate. A protective box 7 is rotatably connected to the bottom of the protective ring 411, which can restrict the position of the protective ring 411, limiting its rotation to the top of the protective box 7. The bottom of the protective box 7 is fixedly connected to one side of the top of the support plate 1, which can fix the position of the protective box 7.To ensure the position of the protective box 7 remains unchanged, the connecting rod 48 is rotatably connected to one side of the top of the protective box 7. The protective box 7 can restrict the position of the connecting rod 48, limiting its rotation to one side of the top of the protective box 7. A telescopic mechanism 5 is provided on one side of the front of the swing rod 412. The telescopic mechanism 5 includes a placement frame 51 fixedly connected to one side of the swing rod 412. The swing rod 412 can fix the position of the placement frame 51. Rotation of the swing rod 412 can drive the placement frame 51 to rotate. The extension frame 52 has a slot inside that matches the extension plate 58, allowing the extension plate 58 to move inside the extension frame 52. The extension frame 52 is fitted inside the placement frame 51. 51 can restrict the position of the extension frame 52, limiting its horizontal movement to within the placement frame 51. A fixing plate 53 is fixedly connected to one end of the extension frame 52, fixing its position. Movement of the fixing plate 53 moves the extension frame 52. A threaded extension rod 54 is fixedly connected to the middle of one end of the placement frame 51, fixing its position. Telescopic rods 55 are fixedly connected to the upper and lower parts of one end of the placement frame 51, fixing their positions. The telescopic rods 55 provide partial support. One end of both telescopic rods 55 is fixedly connected to the fixing plate 53. The movement of 53 can move one end of the two telescopic rods 55. The fixing plate 53 is sleeved on one end of the surface of the threaded extension rod 54. Rotating the threaded extension rod 54 can change the position of the fixing block. The middle of one end of the fixing plate 53 has a hole groove that matches the threaded extension rod 54. The threaded extension rod 54 can rotate and move in the hole groove. One end of the fixing plate 53 is slidably connected to the inside of one end of the swing rod 412. One end of the swing rod 412 has a sliding groove that matches the fixing plate 53. The fixing plate 53 can slide horizontally inside the sliding groove. The inside of the placement rack 51 has a slot that matches the contact plate 57. The contact plate 57 can enter the slot inside the placement rack 51 when force is applied. An internally fixed spring rod 56 is connected to the placement frame 51, which can fix the position of the spring rod 56. A contact plate 57 is fixedly connected to one end of the spring rod 56, allowing the spring rod 56 to fix the position of the contact plate 57. The spring rod 56 connects the placement frame 51 to the contact plate 57. Movement of the contact plate 57 can compress the spring rod 56. An extension plate 58 is sleeved inside the contact plate 57, restricting its position and limiting its horizontal movement to within the contact plate 57. A shock-absorbing plate 59 is fixedly connected to one end of the contact plate 57, fixing its position and allowing the shock-absorbing plate 59 to absorb vibrations in advance.

[0023] Example 2

[0024] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the bottom of the second connecting tooth 43 is rotatably connected to the connecting plate 6. The connecting plate 6 can restrict the position of the second connecting tooth 43, restricting the second connecting tooth 43 to rotate only on the top of the connecting plate 6. The connecting plate 6 can support the second connecting tooth 43. The bottom of both sides of the connecting plate 6 is fixedly connected to the top of the support plate 1. The support plate 1 can fix the position of the connecting plate 6.

[0025] The following is a further description of the specific working method, as detailed below: Specifically, when the rocker arm mechanism is in operation / use: When different lengths of contact plates 57 are required, the threaded extension rod 54 is rotated, which drives the fixed plate 53 to move. The fixed plate 53 slides on one side of the rocker arm 412, and the fixed plate 53 drives the extension frame 52 and the extension plate 58 to extend out inside the placement frame 51 and the contact plate 57. When the appropriate position is reached, the rotation of the threaded extension rod 54 is stopped, which can fix the position of the extension frame 52 and the extension plate 58. The rotation motor 3 is started, and the output end of the rotation motor 3 drives the first cam 41 to rotate. The rotation of the first cam 41 drives the rotating ring 45 to rotate. The rotating ring 45 meshes with the first gear 46 to rotate. The first gear 46 meshes with the second gear 47 to rotate. The second gear 47 drives the third gear 49 and the reverse gear in the same direction. The third gear 49 rotates, meshing with the gear ring 410. The rotation of the gear ring 410 drives the protective ring 411 to rotate, which in turn drives the swing rod 412 to rotate. The swing rod 412 rotates to separate fragile products. During separation, the shock-absorbing plate 59 contacts the product, reducing the impact force in the first step. The impact force pushes the shock-absorbing plate 59 and the contact plate 57 to move backward, compressing the spring and absorbing the contact potential energy, further reducing the impact force and preventing the product from being damaged due to the large deflection force. The first connecting tooth 42 at the top of the first cam 41 meshes with the second connecting tooth 43 to rotate. The second connecting tooth 43 drives the second cam 44 to rotate. When the first cam 41 disengages from the rotating ring 45, the second cam 44 contacts the rotating ring 45 and pushes it. The rotation of the rotating ring 45 pushes the swing rod 412 back, returning it to its original position. This completes one movement of the mechanism.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rocker arm mechanism, comprising: Support plate (1); characterized in that: a connecting frame (2) is fixedly connected to one side of the bottom of the support plate (1), and a rotating motor (3) is fixedly connected to the middle of the inner bottom wall of the connecting frame (2) by bolts, and a swing mechanism (4) is provided at the output end of the rotating motor (3); the swing mechanism (4) includes a first cam (41) fixedly connected to the output end of the rotating motor (3), a first connecting tooth (42) is fixedly connected to one side of the top of the first cam (41), a second connecting tooth (43) meshes between the teeth of the first connecting tooth (42), and a second cam (44) is fixedly connected to the middle of the top of the second connecting tooth (43), and the first cam (44) is fixedly connected to the middle of the top of the second connecting tooth (43). 1) One end is connected to a rotating ring (45), the inside of the rotating ring (45) is meshed with a first gear (46), the teeth of the first gear (46) are meshed with a second gear (47), the top of the second gear (47) is fixedly connected to a connecting rod (48), one end of the connecting rod (48) is fixedly connected to a third gear (49), the teeth of the third gear (49) are meshed with a toothed ring (410), the surface of the toothed ring (410) is fixedly connected to a protective ring (411), the top of the protective ring (411) is fixedly connected to a swing rod (412), and a telescopic mechanism (5) is provided on one side of the front of the swing rod (412).

2. The rocker arm mechanism according to claim 1, characterized in that: The telescopic mechanism (5) includes a placement frame (51) fixedly connected to one side of the swing rod (412). An extension frame (52) is sleeved inside the placement frame (51). A fixing plate (53) is fixedly connected to one end of the extension frame (52). A threaded extension rod (54) is fixedly connected to the middle of one end of the placement frame (51). Telescopic rods (55) are fixedly connected to the upper and lower parts of one end of the placement frame (51). A spring rod (56) is fixedly connected inside the placement frame (51). A contact plate (57) is fixedly connected to one end of the spring rod (56). An extension plate (58) is sleeved inside the contact plate (57). A shock-absorbing plate (59) is fixedly connected to one end of the contact plate (57).

3. The rocker arm mechanism according to claim 2, characterized in that: The placement rack (51) has an internal slot that matches the contact plate (57), and the extension rack (52) has an internal slot that matches the extension plate (58).

4. The rocker arm mechanism according to claim 2, characterized in that: One end of each of the two telescopic rods (55) is fixedly connected to the fixing plate (53). The fixing plate (53) is sleeved on one end of the surface of the threaded extension rod (54). A hole or groove adapted to the threaded extension rod (54) is opened in the middle of one end of the fixing plate (53).

5. The rocker arm mechanism according to claim 2, characterized in that: One end of the fixed plate (53) is slidably connected to the inside of one end of the swing rod (412), and one end of the swing rod (412) has a groove that matches the fixed plate (53).

6. The rocker arm mechanism according to claim 1, characterized in that: The bottom of the second connecting tooth (43) is rotatably connected to a connecting plate (6), and the bottoms on both sides of the connecting plate (6) are fixedly connected to the top of the support plate (1).

7. The rocker arm mechanism according to claim 1, characterized in that: The bottom of the protective ring (411) is rotatably connected to the protective box (7), the bottom of the protective box (7) is fixedly connected to one side of the top of the support plate (1), and the connecting rod (48) is rotatably connected to one side of the top of the protective box (7).

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