Linear vector vibration feeder

Abstract

This invention discloses a linear vector vibratory feeder, belonging to the field of component conveying technology, comprising: an internal vibrating body; an external vibrating body whose center of mass coincides with that of the internal vibrating body; multiple elastic elements disposed between the internal and external vibrating bodies and spaced apart on both sides of the center of mass of the internal vibrating body along the length and height directions; and a vibration exciter assembly disposed between the internal and external vibrating bodies and providing excitation force along the length and height directions passing through the center of mass of the internal vibrating body. The linear vector vibratory feeder provided by this invention can suppress the relative pitch motion between the internal and external vibrating bodies and improve the stability of the feeding process.

Description

Technical Field

[0001] This invention belongs to the field of parts conveying technology, and in particular relates to a linear vector vibration feeder that uses two excitation mechanisms in different directions to work together to convey parts along a straight conveying path with an elliptical motion trajectory. Background Technology

[0002] Among vibratory feeders, there is a type of vibratory component conveying device, which is a composite vibration linear vector vibratory feeder: with the aim of flexibly controlling the movement angle of the component conveying component, different excitation mechanisms and elastic components are used to control the vertical translational movement and the forward and backward translational movement of the component conveying component respectively.

[0003] However, this composite vibratory feeder produces pitch motion, which causes the vertical motion components at different points on the component conveying structure to be inconsistent, ultimately leading to unstable component conveying speed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a linear vector vibration feeder to improve the stability of the feeder.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0006] This invention provides a linear vector vibration feeder, comprising:

[0007] Internal vibrating body;

[0008] The centers of mass of the external vibrating body coincide with those of the internal vibrating body.

[0009] Multiple elastic elements are disposed between the internal vibrating body and the external vibrating body, and are distributed at intervals on both sides of the center of mass of the internal vibrating body along the length and height directions;

[0010] The exciter assembly is disposed between the internal vibrator and the external vibrator, and provides excitation force along the length and height directions passing through the center of mass of the internal vibrator, respectively.

[0011] Furthermore, the equivalent stiffness of the elastic element in the width direction of the internal vibrating body is greater than the equivalent stiffness in the direction perpendicular to the width direction of the internal vibrating body, and the equivalent stiffness of the elastic element in the length direction and the height direction are similar.

[0012] Furthermore, a first plane passing through the center of mass of the internal vibrating body and perpendicular to the length direction divides the internal vibrating body into a front vibration part and a rear vibration part;

[0013] The product of the distance from the center of mass of the front vibration portion to the first plane and the distance from the center of mass of the rear vibration portion to the first plane is less than the product of the distance from the installation position of the elastic element on the front vibration portion to the first plane and the distance from the installation position of the elastic element on the rear vibration portion to the first plane.

[0014] Furthermore, the internal vibrating body is divided into an upper vibrating part and a lower vibrating part by a second plane passing through the center of mass of the internal vibrating body and perpendicular to the height direction;

[0015] The product of the distance from the center of mass of the upper vibrating portion to the second plane and the distance from the center of mass of the lower vibrating portion to the second plane is less than the product of the distance from the installation position of the upper elastic element of the upper vibrating portion to the second plane and the distance from the installation position of the upper elastic element of the lower vibrating portion to the second plane.

[0016] Furthermore, the natural frequency of the relative translational vibration of the internal and external vibrating bodies in the length-height direction plane is less than the natural frequency of their relative rotational vibration about the center of mass in the length-height direction plane.

[0017] The vibration modes corresponding to the relative translational motion of the internal and external vibrating bodies in the length direction have frequencies similar to those corresponding to the relative translational motion of the internal and external vibrating bodies in the height direction.

[0018] Furthermore, the elastic element is configured to limit the relative translational motion of the internal vibrator and the external vibrator along the length and height directions, suppress the relative rotational motion of the internal vibrator and the external vibrator about any straight line parallel to the width direction, and jointly suppress the relative translational motion of the internal vibrator and the external vibrator along the width direction and the relative rotational motion about any straight line perpendicular to the width direction.

[0019] Furthermore, the internal vibrator is equipped with a conveying component mounting part, and an internal elastic element mounting part extending along the height direction is respectively provided at both ends of the bottom surface of the conveying component mounting part, and an internal excitation mechanism mounting part extending along the height direction and connected to a counterweight at its free end is provided in the middle of the bottom surface.

[0020] The external vibrator is equipped with an external excitation mechanism mounting part and an external elastic element mounting part. The external excitation mechanism mounting part has an opening and is connected to an external elastic element mounting part at both ends along the width direction.

[0021] The internal excitation mechanism mounting part is positioned downward between the two external elastic element mounting parts, passes through an opening in the external excitation mechanism mounting part, connects a counterweight at the free end located below the external excitation mechanism mounting part, and is provided with the exciter assembly between it and the external excitation mechanism mounting part.

[0022] The two internal elastic element mounting portions are respectively positioned downwards between the two external elastic element mounting portions and located at both ends of the external excitation mechanism mounting portion along the length direction; the internal elastic element mounting portions and the external elastic element mounting portions are elastically connected at both ends along the height direction by a plurality of elastic elements.

[0023] Furthermore, the internal vibration mechanism mounting part includes a horizontal mounting part and a vertical mounting part in the shape of an inverted L; the opening of the external vibration mechanism mounting part is in the shape of an inverted L along the height direction, matching the shape of the internal vibration mechanism mounting part.

[0024] Furthermore, the exciter assembly includes a first set of exciter mechanisms and a second set of exciter mechanisms for driving the internal vibrator and the external vibrator to translate relative to each other along the length and height directions.

[0025] The first set of excitation mechanisms provides the resultant force vector of excitation force along the height direction passing through the center of mass of the internal vibrating body, and the second set of excitation mechanisms provides the resultant force vector of excitation force along the length direction passing through the center of mass of the internal vibrating body.

[0026] Alternatively, the excitation force provided by the first set of excitation mechanisms and the second set of excitation mechanisms can be decomposed into a component force along the height direction and a component force along the length direction.

[0027] Furthermore, the first set of excitation mechanisms includes a first electromagnet and a first electromagnet armature that are matched relative to each other along the height direction; the first electromagnet armature is disposed on the bottom surface of the transverse mounting part of the inner excitation mechanism mounting part facing the opening on the outer excitation mechanism mounting part, and the first electromagnet is disposed on the inverted L-shaped transverse part of the opening on the outer excitation mechanism mounting part.

[0028] The second set of excitation mechanisms includes a second electromagnet and a second electromagnet armature that are matched relative to each other along the length direction; the second electromagnet is disposed on the external excitation mechanism mounting part, and the second electromagnet armature is disposed on the vertical mounting part of the internal excitation mechanism mounting part.

[0029] Furthermore, the external vibration mechanism mounting part includes a first external mounting part and a second external mounting part arranged parallel to each other from top to bottom. The first external mounting part has a first opening, and the second external mounting part has a second opening. The size of the first opening is larger than the size of the second opening, and the openings are aligned on one side and have an inverted L-shaped shape from top to bottom.

[0030] Furthermore, the vibration modes corresponding to the relative translational motion of the internal vibrator and the external vibrator in the length direction and the vibration modes corresponding to the relative translational motion in the height direction are respectively the two target working modes of the linear vector vibrating feeder;

[0031] All modes other than the vibration modes in which the internal and external vibrating bodies are relatively stationary or relatively translating within the length-height plane are considered interference modes of the linear vector vibrating feeder.

[0032] The frequencies of the interference modes are all higher than the frequencies of the two target operating modes.

[0033] Furthermore, it also includes a support body, which is located at the node position with the smallest amplitude of the target working mode corresponding to the vibration mode of the linear vector vibration feeder near the elastic element. The support body and the elastic element have no less than 3 connection points, and their projections on the corresponding bottom mounting surfaces are not on a straight line.

[0034] Furthermore, both the elastic element and the support body are long straight beam structures;

[0035] The top two sides of the internal elastic element mounting part are respectively connected to the external elastic element mounting part through an elastic element along the width direction;

[0036] The bottom two sides of the internal elastic element mounting part are respectively connected to the external elastic element mounting part through an elastic element along the width direction, and a support body is installed under the elastic element at the node position with the smallest amplitude of the vibration mode corresponding to the target working mode of the linear vector vibration feeder.

[0037] Furthermore, the elastic element has a Z-shaped structure formed by bending a thin sheet;

[0038] The top end of the internal elastic element mounting part is connected to one end of the Z-shaped structure of the elastic element, and the other end of the Z-shaped structure of the elastic element is connected to the external elastic element mounting part.

[0039] The bottom end of the internal elastic element mounting part is connected to one end of the Z-shaped structure of the elastic element, the other end of the Z-shaped structure of the elastic element is connected to the external elastic element mounting part, and the support extends upward and is connected to the vertical plate of the Z-shaped structure of the elastic element.

[0040] Furthermore, the elastic element includes two parallel external vibrating body connecting parts and an internal vibrating body connecting part located between the two external vibrating body connecting parts, and a plurality of equally spaced parallel elastic beams are arranged between the external vibrating body connecting parts and the internal vibrating body connecting parts.

[0041] The bottom ends of the two internal elastic element mounting portions are respectively connected to an internal vibrating body connecting portion of the elastic element located below the counterweight in the length direction, and the two external vibrating body connecting portions of the elastic element are respectively connected to the bottom ends of the external elastic element mounting portions on both sides in the width direction.

[0042] The top ends of the two internal elastic element mounting portions are respectively connected to the internal vibrating body connecting portion of one elastic element in the length direction, and the two external vibrating body connecting portions of the elastic element are respectively connected to the top ends of the external elastic element mounting portions on both sides in the width direction.

[0043] The support body includes two parallel straight beams and two inverted U-shaped structural beams that support the straight beams from below. The straight beams are supported on the elastic beams of the elastic element connected to the top of the internal elastic element mounting part.

[0044] Furthermore, the elastic element includes three spring plates; each spring plate has a long strip-shaped central connecting portion in the center and long strip-shaped outer connecting portions on both sides; a number of equally spaced parallel elastic beams are arranged between the central connecting portion and the outer connecting portion, and each elastic beam is perpendicular to the central connecting portion and the outer connecting portion.

[0045] The central connecting part of the first spring sheet is connected to the central connecting part of the second spring sheet via a washer, and the outer connecting part of the second spring sheet is connected to the outer connecting part of the third spring sheet via a washer.

[0046] The outer connecting portion of the first spring sheet is connected to the two outer elastic element mounting portions on both sides, and the central connecting portion of the third spring sheet is connected to the inner elastic element mounting portion.

[0047] Furthermore, the support body and the elastic element are directly connected or connected through an elastic damping material or a wear-resistant material;

[0048] The support body is directly connected to the bottom mounting surface or connected through elastic damping material or wear-resistant material.

[0049] Furthermore, the support body is connected to the bottom mounting surface via a base, and the support body and the base are directly connected or connected via elastic damping material or wear-resistant material.

[0050] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0051] The linear vector vibratory feeder provided by this invention, by setting several elastic elements between the internal vibrator and the external vibrator, utilizes the lever arm formed by the distance between the elastic elements along the length and height directions of the internal vibrator and the equivalent stiffness of the elastic elements along the width direction of the internal vibrator to jointly suppress the relative translational motion of the internal and external vibrators along the width direction and the relative rotational motion around the length and height axes. By reducing the moment of inertia of the internal vibrator in the length-height plane and increasing the distance from the installation point of the elastic element on the internal vibrator to the center of mass of the internal vibrator to increase the rotational stiffness of the internal vibrator in the length-height plane, the natural frequency of the relative rotational vibration of the internal and external vibrators in the length-height plane is increased. This indirectly suppresses the pitching motion of the internal vibrator relative to the external vibrator during operation, improves the motion consistency of each point on the component conveying component, and enhances the stability of component conveying.

[0052] By setting a support body between the elastic element and the ground or base, and supporting the support body at the node position close to the target mode of the linear vector vibratory feeder, the vibration transmitted to the ground can be reduced, and the vibration components of other modes can be absorbed without significantly affecting the feeding vibration, thereby further improving the stability of the feeding. Attached Figure Description

[0053] Figure 1 This is an isometric view of the linear vector vibratory feeder according to Embodiment 1 of the present invention;

[0054] Figure 2 for Figure 1 An exploded isometric view of the linear vector vibrating feeder shown.

[0055] Figure 3 for Figure 1 The front view of the linear vector vibratory feeder shown.

[0056] Figure 4 for Figure 1 The top view of the linear vector vibratory feeder shown.

[0057] Figure 5 for Figure 1 The side view of the linear vector vibratory feeder shown.

[0058] Figure 6 for Figure 1 The linear vector vibratory feeder shown is along... Figure 4 Sectional view of line AA in the middle;

[0059] Figure 7 for Figure 1 The linear vector vibratory feeder shown is along... Figure 4 Sectional view of the middle BB line;

[0060] Figure 8 for Figure 1 The linear vector vibratory feeder shown is along... Figure 4 A cross-sectional view of the CC line;

[0061] Figure 9 This is an isometric view of the linear vector vibratory feeder according to Embodiment 2 of the present invention;

[0062] Figure 10 for Figure 9 An exploded isometric view of the linear vector vibrating feeder shown.

[0063] Figure 11 for Figure 9 The top view of the linear vector vibratory feeder shown.

[0064] Figure 12 for Figure 9 The linear vector vibratory feeder shown is along... Figure 11 Sectional view of the DD line;

[0065] Figure 13 for Figure 9 The side view of the linear vector vibratory feeder shown.

[0066] Figure 14 This is an isometric view of the linear vector vibratory feeder according to Embodiment 3 of the present invention;

[0067] Figure 15 for Figure 14 An exploded isometric view of the linear vector vibrating feeder shown.

[0068] Figure 16 for Figure 14 The front view of the linear vector vibratory feeder shown.

[0069] Figure 17 for Figure 14 The top view of the linear vector vibratory feeder shown.

[0070] Figure 18 for Figure 14 The side view of the linear vector vibratory feeder shown.

[0071] Figure 19 for Figure 14 The linear vector vibratory feeder shown is along... Figure 17 Sectional view of the middle EE line;

[0072] Figure 20 for Figure 14 The linear vector vibratory feeder shown is along... Figure 18Sectional view of the middle FF line;

[0073] Figure 21 This is an isometric view of the linear vector vibratory feeder of Embodiment 4 of the present invention;

[0074] Figure 22 for Figure 21 An exploded isometric view of the linear vector vibrating feeder shown.

[0075] Figure 23 for Figure 21 The top view of the linear vector vibratory feeder shown.

[0076] Figure 24 for Figure 21 The side view of the linear vector vibratory feeder shown.

[0077] Figure 25 for Figure 21 The linear vector vibratory feeder shown is along... Figure 23 A cross-sectional view of the GG line in the middle;

[0078] Figure 26 for Figure 21 Isometric view of the elastic body structure in the linear vector vibratory feeder shown;

[0079] Figure 27 for Figure 21 An isometric exploded view of the elastic body structure in the linear vector vibratory feeder shown.

[0080] In the diagram: 10. Component conveying component; 20. Internal vibrator; 21. Conveying component mounting part; 22. Internal elastic element mounting part; 23. Internal excitation mechanism mounting part; 24. Counterweight; 28. First electromagnet armature; 29. ​​Second electromagnet armature; 30. External vibrator; 31. External elastic element mounting part; 32. External excitation mechanism mounting part; 38. First electromagnet; 39. Second electromagnet; 40. Elastic element; 50. Support body; 60. Mounting surface; 70. Base; 71. Spring plate; 72. Elastic beam. Detailed Implementation

[0081] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0082] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0083] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical 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 will understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0084] like Figures 1-8 As shown, an embodiment of the present invention provides a linear vector vibration feeder, comprising: an internal vibrating body 20, an external vibrating body 30, an elastic member 40 for connecting the internal vibrating body 20 and the external vibrating body 30, and a first excitation mechanism and a second excitation mechanism disposed between the internal vibrating body 20 and the external vibrating body 30 for providing excitation force. The mounting surface 60 can be the ground or the like.

[0085] As shown in Figures 1-2, the external vibrator 30 is a structure composed of an external elastic element mounting part 31 and an external excitation mechanism mounting part 32. The external elastic element mounting part 31 is located at both ends of the external excitation mechanism mounting part 32 in the width direction.

[0086] The internal vibrator 20 is a structure composed of a conveying component mounting part 21, an external elastic element mounting part 22, an external excitation mechanism mounting part 23, and a counterweight 24. The upper surface of the conveying component mounting part 21 is relatively flat and is used to mount the conveying component 10. It is connected to an external elastic element mounting part 22 at the front and rear, and its lower surface is connected to the external excitation mechanism mounting part 23. The lower surface of the external excitation mechanism mounting part 23 is connected to the counterweight 24. The external excitation mechanism mounting part 32 of the external vibrator 30 has an opening in the middle. The internal vibrator 20 is located between the two external elastic element mounting parts 31 of the external vibrator 30. The external excitation mechanism mounting part 23 of the internal vibrator 20 passes through the opening in the external excitation mechanism mounting part 32 of the external vibrator 30. By replacing and adjusting the counterweight 24 in the internal vibrator 20, the centers of mass of the internal vibrator 20 and the external vibrator 30 are completely coincident, and the mass distribution of the internal vibrator 20 is concentrated near the center of mass.

[0087] The elastic element 40 is connected between the external elastic element mounting part 22 of the internal vibrator 20 and the external elastic element mounting part 31 of the external vibrator 30. In this embodiment, the elastic element 40 is in the form of a long straight beam. After installation, the length direction of the elastic element 40 points to the width direction of the internal vibrator 20, so that the equivalent stiffness of each elastic element 40 in the width direction of the internal vibrator 20 is greater than the equivalent stiffness in other directions perpendicular to this direction.

[0088] In the length and height directions of the internal vibrator 20, the connection points of each elastic element 40 with the internal vibrator 20 are located at the two ends, so that the multiple elastic elements 40 have sufficient lever arm length in the length and height directions, which, together with the stiffness of the elastic elements 40 in the width direction, achieves the effect of allowing the internal vibrator 20 and the external vibrator 30 to perform relative translational motion in the length and height directions, suppressing the relative rotational motion of the internal and external vibrators about any straight line parallel to the width direction, and at the same time jointly suppressing the relative translational motion of the internal vibrator 20 and the external vibrator 30 in the width direction and the relative rotational motion about any straight line perpendicular to the width direction.

[0089] By adjusting the mass distribution of the internal vibrating body 20 and the connection point between the elastic element 40 and the internal vibrating body 20, the following relationship is established: the internal vibrating body 20 is divided into a front vibration part and a rear vibration part by a first plane passing through the center of mass of the internal vibrating body 20 and perpendicular to the length direction. The product of the distance from the center of mass of the front vibration part to the first plane and the distance from the center of mass of the rear vibration part to the first plane is less than the product of the distance from the installation position of the elastic element 40 on the front vibration part to the first plane and the distance from the installation position of the elastic element 40 on the rear vibration part to the first plane.

[0090] Simultaneously, a second plane passing through the center of mass of the internal vibrating body 20 and perpendicular to the height direction divides the internal vibrating body 20 into an upper vibrating part and a lower vibrating part. The product of the distance from the center of mass of the upper vibrating part to the second plane and the distance from the center of mass of the lower vibrating part to the second plane is less than the product of the distance from the mounting position of the upper elastic element 40 in the upper vibrating part to the second plane and the distance from the mounting position of the upper elastic element 40 in the lower vibrating part to the second plane. In this way, the natural frequency of the relative translational vibration of the internal vibrating body 20 and the external vibrating body 30 in the length-height direction plane is less than the natural frequency of their relative rotational vibration around the center of mass in the length-height direction plane.

[0091] Furthermore, the frequencies of all interference modes are higher than the frequencies of the two target operating modes, enabling the internal vibrator (20) and the external vibrator 30 to perform relative translational motion along the length and height directions, while suppressing the relative rotational motion of the internal vibrator 20 and the external vibrator 30 around any straight line parallel to the width direction, while suppressing the relative translational motion of the internal vibrator 20 and the external vibrator 30 along the width direction, while suppressing the relative rotational motion of the internal vibrator 20 and the external vibrator 30 around any straight line parallel to the length direction, while suppressing the relative rotational motion of the internal vibrator 20 and the external vibrator 30 around any straight line parallel to the height direction.

[0092] Between the internal vibrator 20 and the external vibrator 30, there are also a first set of excitation mechanisms and a second set of excitation mechanisms required to apply translational motion in the length direction and translational motion in the height direction to the component conveying member 10.

[0093] The first set of excitation mechanisms and the second set of excitation mechanisms output excitation forces of the same frequency, which is near the natural frequency of the translational mode in the length direction and the translational mode in the height direction of the component conveying member 10 (hereinafter collectively referred to as the working target mode).

[0094] The external excitation mechanism mounting part 32 of the external vibrator 30 is provided with a first electromagnet 38 and a second electromagnet 39. The first electromagnet 38 is configured to face the height direction and pass through the center of mass of the internal vibrator 20, and the second electromagnet 39 is configured to face the length direction and pass through the center of mass of the internal vibrator 20. On the external excitation mechanism mounting part 23 of the internal vibrator 20, at positions corresponding to the first electromagnet 38 and the second electromagnet 39, a first electromagnet armature 28 facing the same direction as the first electromagnet 38 and a second electromagnet armature 29 facing the same direction as the second electromagnet 39 are respectively provided.

[0095] Among them, the first electromagnet 38 facing the vertical direction and the corresponding first electromagnet armature 28 form the first excitation mechanism. When the first electromagnet 38 is energized, an electromagnetic attraction force is periodically applied between the first electromagnet 38 and the first electromagnet armature 28. The electromagnetic attraction force and the restoring force of the elastic member 40 in the vertical direction cause the internal vibrating body 20 and the component conveying member 10 to generate vertical translational vibration relative to the external vibrating body 30.

[0096] A second set of excitation mechanisms is formed by a second electromagnet 39 and its corresponding armature 29, which are oriented horizontally. When the second electromagnet 39 is energized, an electromagnetic attraction force acts periodically between the second electromagnet 39 and the armature 29. This electromagnetic attraction force, along with the restoring force of the elastic element 40 in the horizontal direction, causes the internal vibrating body 20 and the component conveying member 10 to undergo translational vibration relative to the external vibrating body 30 in the horizontal length direction. The combined action of these two directions causes the composite motion trajectory of any point on the component conveying member 10 to be elliptical.

[0097] The first set of excitation mechanisms outputs a resultant torque of zero, and the resultant force is vertical and passes through the center of mass of the component conveying member 10 and the internal vibrating body. The second set of excitation mechanisms outputs a resultant torque of zero, and the resultant force is along the length direction and passes through the center of mass of the component conveying member 10.

[0098] A support body 50 for supporting the entire feeder is also provided between the mounting surface 60 and the elastic element 40. The support body 50 is made of elastic damping material or wear-resistant material.

[0099] Specifically, a support point is provided below each of the four elastic elements 40 near the bottom, and four identical support bodies 50 are provided between the four support points and the mounting surface 60. These support points are located near the node with the smallest amplitude corresponding to the target mode of the feeder's overall operation. By providing the support bodies 50, the main vibrations during feeder operation are not transmitted to the mounting surface 60 through the support bodies 50, thereby reducing the vibration transmitted to the mounting surface 60. Simultaneously, vibrations of other modes can be absorbed by the support bodies 50, further improving the motion stability of the internal vibrating body 20.

[0100] In the above embodiment, the support body 50 consists of 4 independent components, but the support body 50 is not limited to being independent components; it can also be connected into a whole.

[0101] The support 50 and the elastic element 40 can be directly connected, or they can be connected through elastic damping material or wear-resistant material.

[0102] Similarly, the support 50 and the mounting surface 60 can be directly connected or connected through elastic damping material or wear-resistant material. Example

[0103] like Figures 9-13 The diagram shown is a structural schematic of a linear vector vibration feeder according to Embodiment 2 of the present invention.

[0104] This embodiment has a similar structure to Embodiment 1, except that the structures of the elastic element and the support are different.

[0105] Specifically, the elastic element 40 is a Z-shaped structure formed by bending a thin sheet. The Z-shaped structure has mounting points at both ends. One mounting point is connected to the external elastic element mounting part 22 on the internal vibrator 20, and the other mounting point is connected to the external elastic element mounting part 31 on the external vibrator 30. The Z-shaped spring sheet 40 has relatively low stiffness in the length and height directions after installation.

[0106] The bottom surface of the support body 50 is mounted on the mounting surface 60, and the top surface rises into a column structure. Two support points are respectively provided on the two elastic members 40 near the bottom, and these two support points are connected to the column structure of the support body 50 by elastic damping material. These support points are located at the node position with the smallest amplitude corresponding to the vibration mode of the feeder's overall working target mode. Example

[0107] like Figures 14-20 The diagram shown is a structural schematic of a linear vector vibration feeder according to Embodiment 3 of the present invention.

[0108] This embodiment has a structure that is largely the same as that of Embodiment 1, except that the elastic element 40 and the support 50 have different structures.

[0109] The elastic element 40 is a single sheet structure. Specifically, it has a long strip-shaped internal vibrator connecting part in the center and long strip-shaped external vibrator connecting parts on both sides. Elastic beams are arranged between the internal and external vibrator connecting parts, each beam perpendicular to both. The beams are evenly spaced and parallel to each other. The elastic beams, internal and external vibrator connecting parts together constitute the elastic element 40. Support points are provided under each elastic beam, located near the node with the smallest amplitude corresponding to the target mode of the feeder's overall operation.

[0110] Two elastic elements 40 are located above and below the external vibrator 30, respectively. The internal vibrator connecting part of the elastic element 40 is connected to the external elastic element mounting part 22 on the internal vibrator 20, and the external vibrator connecting part of the elastic element 40 is connected to the elastic element mounting part 31 on the external vibrator 30.

[0111] The support body 50 is a one-piece structure, consisting of two parallel straight beams and two inverted U-shaped structures supporting the two straight beams from below. The two straight beams in the support body 50 are connected to the support points on the two rows of elastic beams in the upper elastic element 40 via elastic damping material. The inverted U-shaped structures in the support body 50 are connected to the mounting surface 60. Example

[0112] like Figures 21-27 The diagram shown is a structural schematic of a linear vector vibration feeder according to Embodiment 4 of the present invention.

[0113] This embodiment has a structure that is largely the same as that of Embodiment 1, except that the structure of the elastic element 40 is different.

[0114] Specifically, such as Figure 26 , 27 As shown, the elastic element 40 is a structure assembled from three spring plates 71. Each spring plate has a long strip-shaped central connecting portion in the center and long strip-shaped outer connecting portions on both sides. Elastic beams 72 are arranged between the central and outer connecting portions, with each elastic beam perpendicular to both the central and outer connecting portions and arranged parallel to each other at equal intervals. The central connecting portion of the first spring plate is connected to the central connecting portion of the second spring plate through a washer, and the outer connecting portion of the second spring plate is connected to the outer connecting portion of the third spring plate through a washer, together forming the elastic element 40.

[0115] The outer connecting part of the first spring plate serves as the external vibrating body connecting part of the elastic element 40, and the central connecting part of the third spring plate serves as the internal vibrating body connecting part of the elastic element 40. By adjusting the mass of the internal vibrating body 20 and the external vibrating body 30, as well as the material and size of each spring plate, the outer connecting parts of the second spring plate, the outer connecting parts of the third spring plate, and the position of the shim between them are approximately located at the node position with the smallest amplitude corresponding to the target mode of the feeder's overall working mode. A support point is set at this position below the elastic element 40.

[0116] The external vibrating body connecting part of the elastic element 40 is connected to the external elastic element mounting part 31 of the external vibrating body 30, and the internal vibrating body connecting part of the elastic element 40 is connected to the external elastic element mounting part 22 of the internal vibrating body 20. The four support points of the elastic element 40 are connected to the mounting surface through the support body 50.

[0117] This invention controls the mass distribution of the internal vibrating body 20 by setting several elastic elements 40, thereby concentrating the output energy of the excitation mechanism in the target working mode and reducing the amplitude amplification factor of the pitch motion mode in the working frequency band, thus suppressing the relative pitch motion of the feeder during operation. Furthermore, by setting a support body 50 at the target mode node, the vibration transmitted to the ground is reduced, and the vibration components of other modes are absorbed without significantly affecting the feeding vibration, further suppressing undesirable motion modes such as pitch motion of the feeder during operation and improving feeding stability.

[0118] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A linear vector vibration feeder, characterized by, include: Internal vibrating body; The centers of mass of the external vibrating body coincide with those of the internal vibrating body. Multiple elastic elements are disposed between the internal vibrating body and the external vibrating body, and are distributed at intervals on both sides of the center of mass of the internal vibrating body along the length and height directions; The exciter assembly is disposed between the internal vibrator and the external vibrator, and provides excitation force along the length direction and height direction passing through the center of mass of the internal vibrator, respectively; The equivalent stiffness of the elastic element in the width direction of the internal vibrating body is greater than that in the direction perpendicular to the width direction of the internal vibrating body, and the equivalent stiffness of the elastic element in the length direction and the height direction are similar. The length direction is the feeding direction, and the height direction is the vertical direction perpendicular to the feeding direction.

2. The linear vector vibration feeder according to claim 1, characterized in that, The internal vibrating body is divided into a front vibration part and a rear vibration part by a first plane passing through the center of mass of the internal vibrating body and perpendicular to the length direction; The product of the distance from the center of mass of the front vibration portion to the first plane and the distance from the center of mass of the rear vibration portion to the first plane is less than the product of the distance from the installation position of the elastic element on the front vibration portion to the first plane and the distance from the installation position of the elastic element on the rear vibration portion to the first plane.

3. The linear vector vibration feeder according to claim 2, characterized in that, The internal vibrating body is divided into an upper vibrating part and a lower vibrating part by a second plane passing through the center of mass of the internal vibrating body and perpendicular to the height direction; The product of the distance from the center of mass of the upper vibrating portion to the second plane and the distance from the center of mass of the lower vibrating portion to the second plane is less than the product of the distance from the installation position of the upper elastic element of the upper vibrating portion to the second plane and the distance from the installation position of the upper elastic element of the lower vibrating portion to the second plane.

4. The linear vector vibratory feeder according to any one of claims 1 to 3, characterized in that, The natural frequency of the relative translational vibration of the internal and external vibrating bodies in the length-height direction plane is less than the natural frequency of the relative rotational vibration about the center of mass in the length-height direction plane. The vibration modes corresponding to the relative translational motion of the internal and external vibrating bodies in the length direction have frequencies similar to those corresponding to the relative translational motion of the internal and external vibrating bodies in the height direction.

5. The linear vector vibratory feeder according to claim 4, characterized in that, The elastic element is configured to limit the relative translational motion of the internal vibrator and the external vibrator along the length and height directions, suppress the relative rotational motion of the internal vibrator and the external vibrator about any straight line parallel to the width direction, and jointly suppress the relative translational motion of the internal vibrator and the external vibrator along the width direction and the relative rotational motion about any straight line perpendicular to the width direction.

6. The linear vector vibration feeder according to claim 1, characterized in that, The internal vibrator is equipped with a conveying component mounting part. At both ends of the bottom surface of the conveying component mounting part, there is an internal elastic element mounting part that extends along the height direction. At the middle of the bottom surface, there is an internal excitation mechanism mounting part that extends along the height direction and has a counterweight connected to its free end. The external vibrator is equipped with an external excitation mechanism mounting part and an external elastic element mounting part. The external excitation mechanism mounting part has an opening and is connected to an external elastic element mounting part at both ends along the width direction. The internal excitation mechanism mounting part is positioned downward between the two external elastic element mounting parts, passes through an opening in the external excitation mechanism mounting part, connects a counterweight at the free end located below the external excitation mechanism mounting part, and is provided with the exciter assembly between it and the external excitation mechanism mounting part. The two internal elastic element mounting portions are respectively positioned downwards between the two external elastic element mounting portions and located at both ends of the external excitation mechanism mounting portion along the length direction; the internal elastic element mounting portions and the external elastic element mounting portions are elastically connected at both ends along the height direction by a plurality of elastic elements.

7. The linear vector vibratory feeder according to claim 6, characterized in that, The internal vibration mechanism mounting section includes a horizontal mounting section and a vertical mounting section in the shape of an inverted L; the opening of the external vibration mechanism mounting section is in the shape of an inverted L along the height direction, matching the shape of the internal vibration mechanism mounting section.

8. The linear vector vibration feeder according to claim 7, characterized in that, The exciter assembly includes a first set of exciter mechanisms and a second set of exciter mechanisms for driving the relative translational motion of the internal vibrator and the external vibrator along the length and height directions. The first set of excitation mechanisms provides the resultant force vector of excitation force along the height direction passing through the center of mass of the internal vibrating body, and the second set of excitation mechanisms provides the resultant force vector of excitation force along the length direction passing through the center of mass of the internal vibrating body. Alternatively, the excitation force provided by the first set of excitation mechanisms and the second set of excitation mechanisms can be decomposed into a component force along the height direction and a component force along the length direction.

9. The linear vector vibratory feeder according to claim 8, characterized in that, The first set of excitation mechanisms includes a first electromagnet and a first electromagnet armature that are matched relative to each other along the height direction; the first electromagnet armature is disposed on the bottom surface of the transverse mounting part of the inner excitation mechanism mounting part facing the opening on the outer excitation mechanism mounting part, and the first electromagnet is disposed on the inverted L-shaped transverse part of the opening on the outer excitation mechanism mounting part. The second set of excitation mechanisms includes a second electromagnet and a second electromagnet armature that are matched relative to each other along the length direction; the second electromagnet is disposed on the external excitation mechanism mounting part, and the second electromagnet armature is disposed on the vertical mounting part of the internal excitation mechanism mounting part.

10. The linear vector vibration feeder according to claim 7, characterized in that, The external vibration mechanism mounting part includes a first external mounting part and a second external mounting part arranged parallel to each other from top to bottom. The first external mounting part has a first opening, and the second external mounting part has a second opening. The size of the first opening is larger than the size of the second opening. The openings are aligned on one side and have an inverted L-shaped shape from top to bottom.

11. The linear vector vibration feeder according to claim 1, characterized in that, The vibration modes corresponding to the relative translational motion of the internal and external vibrating bodies in the length direction and the vibration modes corresponding to the relative translational motion in the height direction are respectively the two target working modes of the linear vector vibrating feeder; All modes other than the vibration modes in which the internal and external vibrating bodies are relatively stationary or relatively translating within the length-height plane are considered interference modes of the linear vector vibrating feeder. The frequencies of the interference modes are all higher than the frequencies of the two target operating modes.

12. The linear vector vibration feeder according to claim 6, characterized in that, It also includes a support body, which is located at the node position with the smallest amplitude of the target working mode corresponding to the vibration mode of the linear vector vibration feeder near the elastic element. The support body and the elastic element have no less than 3 connection points, and their projections on the corresponding bottom mounting surfaces are not on a straight line.

13. The linear vector vibration feeder according to claim 12, characterized in that, Both the elastic element and the support body are long straight beam structures; The top two sides of the internal elastic element mounting part are respectively connected to the external elastic element mounting part through an elastic element along the width direction; The bottom two sides of the internal elastic element mounting part are respectively connected to the external elastic element mounting part through an elastic element along the width direction, and a support body is installed under the elastic element at the node position with the smallest amplitude of the vibration mode corresponding to the target working mode of the linear vector vibration feeder.

14. The linear vector vibration feeder according to claim 12, characterized in that, The elastic element has a Z-shaped structure formed by bending a thin sheet; The top end of the internal elastic element mounting part is connected to one end of the Z-shaped structure of the elastic element, and the other end of the Z-shaped structure of the elastic element is connected to the external elastic element mounting part. The bottom end of the internal elastic element mounting part is connected to one end of the Z-shaped structure of the elastic element, the other end of the Z-shaped structure of the elastic element is connected to the external elastic element mounting part, and the support extends upward and is connected to the vertical plate of the Z-shaped structure of the elastic element.

15. The linear vector vibration feeder according to claim 12, characterized in that, The elastic element has a sheet-like structure, including two parallel external vibrating body connection parts and an internal vibrating body connection part located between the two external vibrating body connection parts, and several equally spaced parallel elastic beams are arranged between the external vibrating body connection parts and the internal vibrating body connection parts. The bottom ends of the two internal elastic element mounting portions are respectively connected to an internal vibrating body connecting portion of the elastic element located below the counterweight in the length direction, and the two external vibrating body connecting portions of the elastic element are respectively connected to the bottom ends of the external elastic element mounting portions on both sides in the width direction. The top ends of the two internal elastic element mounting portions are respectively connected to the internal vibrating body connecting portion of one elastic element in the length direction, and the two external vibrating body connecting portions of the elastic element are respectively connected to the top ends of the external elastic element mounting portions on both sides in the width direction. The support body includes two parallel straight beams and two inverted U-shaped structural beams that support the straight beams from below. The straight beams are supported on the elastic beams of the elastic element connected to the top of the internal elastic element mounting part.

16. The linear vector vibration feeder according to claim 12, characterized in that, The elastic element includes three spring plates; each spring plate has a long strip-shaped central connecting part in the center and long strip-shaped outer connecting parts on both sides; a number of elastic beams are arranged in parallel at equal intervals between the central connecting part and the outer connecting parts, and each elastic beam is perpendicular to the central connecting part and the outer connecting part. The central connecting part of the first spring sheet is connected to the central connecting part of the second spring sheet via a washer, and the outer connecting part of the second spring sheet is connected to the outer connecting part of the third spring sheet via a washer. The outer connecting portion of the first spring sheet is connected to the two outer elastic element mounting portions on both sides, and the central connecting portion of the third spring sheet is connected to the inner elastic element mounting portion.

17. The linear vector vibration feeder according to claim 12, characterized in that, The support body is directly connected to the elastic element or connected through an elastic damping material or a wear-resistant material. The support body is directly connected to the bottom mounting surface or connected through elastic damping material or wear-resistant material.

18. The linear vector vibration feeder according to claim 17, characterized in that, The support is connected to the bottom mounting surface via a base, and the support and the base are directly connected or connected via elastic damping material or wear-resistant material.

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