Linear vector vibration feeder

Abstract

The invention discloses a linear vector vibration feeder, and belongs to the technical field of part conveying. The mass center of the outer vibrating body coincides with the mass center of the inner vibrating body; the plurality of elastic pieces are arranged between the internal vibrating body and the external vibrating body and are distributed on the two sides of the mass center of the internal vibrating body at intervals in the length direction and the height direction; and an exciter assembly which is disposed between the inner vibrating body and the outer vibrating body, and which provides excitation forces in the longitudinal direction and the height direction passing through the center of mass of the inner vibrating body, respectively. According to the linear vector vibration feeder, the relative pitching motion of the internal vibration body and the external vibration body can be restrained, and the feeding stability can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of parts conveying, and in particular relates to a linear vector vibrating feeder which conveys parts along a linear conveying path in an elliptical motion trajectory through cooperative driving of two excitation mechanisms in different directions. Background Art

[0002] Among the vibrating feeders, there is a vibrating parts conveying device, which is a compound vibration linear vector vibrating feeder: in order to flexibly control the movement inclination angle of the parts conveying component, different excitation mechanisms are used in conjunction with elastic components to respectively control the vertical translation movement and the front-to-back translation movement of the parts conveying component.

[0003] However, this composite vibrating feeder generates a pitching motion, which causes the vertical motion components of various points on the component conveying member to be inconsistent, ultimately resulting in an unstable component conveying speed. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a linear vector vibrating feeder to improve the feeding stability of the feeder.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: The present invention provides a linear vector vibrating feeder, comprising: Internal vibrating body; An external vibrating body, the center of mass of which coincides with that of the internal vibrating body; A plurality of elastic members are arranged between the internal vibrating body and the external vibrating body, and are spaced apart on both sides of the center of mass of the internal vibrating body along the length direction and the height direction; The exciter assembly is arranged between the internal vibrating body and the external vibrating body, and provides exciting force along the length direction and the height direction passing through the center of mass of the internal vibrating body.

[0006] Furthermore, the equivalent stiffness of the elastic member 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 member in the length direction and the height direction are similar.

[0007] Furthermore, a first plane passing through the center of mass of the internal vibration body and perpendicular to the length direction divides the internal vibration body into a front vibration part and a rear vibration part; 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 smaller than the product of the distance from the installation position of the elastic part on the front vibration part to the first plane and the distance from the installation position of the elastic part on the rear vibration part to the first plane.

[0008] Furthermore, a second plane passing through the center of mass of the internal vibration body and perpendicular to the height direction divides the internal vibration body into an upper vibration part and a lower vibration part; The product of the distance from the center of mass of the upper vibration part to the second plane and the distance from the center of mass of the lower vibration part to the second plane is less than the product of the distance from the installation position of the elastic part on the upper vibration part to the second plane and the distance from the installation position of the elastic part on the lower vibration part to the second plane.

[0009] Furthermore, the relative translation vibration natural frequency of the internal vibrating body and the external vibrating body in the length-height direction plane is less than the relative rotation vibration natural frequency about the center of mass in the length-height direction plane; The frequency of the vibration mode corresponding to the relative translation between the internal vibrating body and the external vibrating body in the length direction and the frequency of the vibration mode corresponding to the relative translation between the internal vibrating body and the external vibrating body in the height direction are similar.

[0010] Furthermore, the elastic member is configured to limit the relative translational movement of the internal vibration body and the external vibration body along the length direction and the height direction, suppress the relative rotational movement of the internal vibration body and the external vibration body around any straight line parallel to the width direction, and jointly suppress the relative translational movement of the internal vibration body and the external vibration body along the width direction and the relative rotational movement around any straight line perpendicular to the width direction.

[0011] Furthermore, the internal vibrating body is provided with a conveying member mounting portion, and an internal elastic member mounting portion extending in the height direction is respectively provided at both ends of the bottom surface of the conveying member mounting portion, and an internal excitation mechanism mounting portion extending in the height direction and connected to a counterweight at the free end is provided in the middle of the bottom surface; The external vibrating body is provided with an external excitation mechanism mounting portion and an external elastic member mounting portion, the external excitation mechanism mounting portion is provided with an opening, and both ends along the width direction are respectively connected to an external elastic member mounting portion; The internal vibration mechanism mounting part is placed downwardly between the two external elastic member mounting parts, a counterweight is connected at a free end located below the external vibration mechanism mounting part through an opening on the external vibration mechanism mounting part, and the vibration exciter assembly is arranged between the internal vibration mechanism mounting part and the external vibration mechanism mounting part; The two internal elastic member mounting parts are respectively placed downwardly between the two external elastic member mounting parts, and are located at both ends of the external excitation mechanism mounting part along the length direction; the internal elastic member mounting part and the external elastic member mounting part are elastically connected at both ends along the height direction through a plurality of elastic members.

[0012] Furthermore, the internal vibration mechanism mounting portion includes a transverse mounting portion and a vertical mounting portion in an inverted L-shape; the opening of the external vibration mechanism mounting portion is in an inverted L-shape along the height direction to match the internal vibration mechanism mounting portion.

[0013] Further, the vibration exciter assembly includes a first set of vibration excitation mechanisms and a second set of vibration excitation mechanisms for driving the relative translational motion of the internal vibration body and the external vibration body along the length direction and the height direction; The first group of excitation mechanisms provides an excitation force resultant force vector along a height direction passing through the mass center of the internal vibrating body, and the second group of excitation mechanisms provides an excitation force resultant force vector along a length direction passing through the mass center of the internal vibrating body; Alternatively, the excitation force provided by the first group of excitation mechanisms and the second group of excitation mechanisms can be decomposed into a component force along the height direction and a component force along the length direction.

[0014] Further, the first group of excitation mechanisms includes a first electromagnet and a first electromagnet armature that are relatively matched and arranged in the height direction; the first electromagnet armature is arranged on the bottom surface of the transverse mounting portion of the internal excitation mechanism mounting portion facing the opening on the external excitation mechanism mounting portion, and the first electromagnet is arranged at the inverted L-shaped transverse portion of the opening of the external excitation mechanism mounting portion; The second group of excitation mechanisms includes a second electromagnet and a second electromagnet armature that are relatively matched and arranged along the length direction; the second electromagnet is arranged on the external excitation mechanism mounting part, and the second electromagnet armature is arranged on the vertical mounting part of the internal excitation mechanism mounting part.

[0015] Furthermore, the external excitation mechanism mounting part includes a first external mounting part and a second external mounting part which are arranged in parallel and spaced apart from top to bottom, the first external mounting part is provided with a first opening, the second external mounting part is provided with a second opening, the size of the first opening is larger than the size of the second opening, one side of the openings are aligned and are in an inverted L-shape from top to bottom.

[0016] Furthermore, the vibration mode corresponding to the relative translation of the internal vibrating body and the external vibrating body in the length direction and the vibration mode corresponding to the relative translation in the height direction are respectively two target working modes of the linear vector vibrating feeder; All modes other than the vibration mode of relative stillness or relative translational motion of the internal vibrating body and the external vibrating body in the length-height plane are interference modes of the linear vector vibrating feeder; The frequencies of the interference modes are all higher than the frequencies of the two target working modes.

[0017] Furthermore, it also includes a support body, which is arranged under the elastic member at a node position with the smallest amplitude of the vibration type corresponding to the target working mode of the linear vector vibration feeder close to the elastic member, and the number of connection points between the support body and the elastic member is not less than 3 and the projections on the corresponding bottom mounting surface are not on a straight line.

[0018] Furthermore, the elastic member and the support body are both long straight beam structures; Both sides of the top end of the internal elastic member mounting portion are connected to the external elastic member mounting portion through one of the elastic members respectively along the width direction; Both sides of the bottom end of the internal elastic member mounting portion are connected to the external elastic member mounting portion along the width direction through an elastic member respectively, and a support body is installed under the elastic member at a node position with the smallest amplitude of the vibration type corresponding to the target working mode of the linear vector vibration feeder.

[0019] Furthermore, the elastic member is a Z-shaped structure formed by bending a thin sheet; The top end of the internal elastic member mounting portion is connected to one end of the Z-shaped structure of the elastic member, and the other end of the Z-shaped structure of the elastic member is connected to the external elastic member mounting portion; The bottom end of the internal elastic member mounting portion is connected to one end of the Z-shaped structure of the elastic member, the other end of the Z-shaped structure of the elastic member is connected to the external elastic member mounting portion, and the support body extends upward and is connected to the vertical plate of the Z-shaped structure of the elastic member.

[0020] Further, the elastic member includes two mutually parallel external vibration body connection parts and an internal vibration body connection part located between the two external vibration body connection parts, and a plurality of elastic beams arranged in parallel at equal intervals are arranged between the external vibration body connection part and the internal vibration body connection part; The bottom ends of the two internal elastic member mounting parts are respectively connected to an internal vibration body connecting part of the elastic member located below the counterweight in the length direction, and the two external vibration body connecting parts of the elastic member are respectively connected to the bottom ends of the external elastic member mounting parts on both sides in the width direction; The top ends of the two internal elastic member mounting parts are respectively connected to the internal vibration body connecting part of one elastic member in the length direction, and the two external vibration body connecting parts of the elastic member are respectively connected to the top ends of the external elastic member mounting parts on both sides in the width direction; The support body includes two straight beams parallel to each other and two inverted U-shaped structural beams supporting the straight beams from below. The straight beam support is arranged on the elastic beam of the elastic member connected to the top end of the internal elastic member mounting portion.

[0021] Furthermore, the elastic member includes three spring sheets; each of the spring sheets is provided with a long central connecting portion in the center, and a long outer connecting portion is provided on both sides, and a plurality of elastic beams arranged in parallel at equal intervals are arranged between the central connecting portion and the outer connecting portion, and each of the elastic beams is perpendicular to the central connecting portion and the outer connecting portion; The central connecting portion of the first spring sheet is connected to the central connecting portion of the second spring sheet through a gasket, and the outer connecting portion of the second spring sheet is connected to the outer connecting portion of the third spring sheet through a gasket; The two sides of the outer connecting portion of the first spring sheet are respectively connected to the two outer elastic component mounting portions, and the central connecting portion of the third spring sheet is connected to the inner elastic component mounting portion.

[0022] Furthermore, the support body and the elastic member are directly connected or connected via an elastic vibration-damping material or a wear-resistant material; The support body is directly connected to the bottom mounting surface or is connected via an elastic vibration-damping material or a wear-resistant material.

[0023] 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 an elastic vibration-damping material or a wear-resistant material.

[0024] Compared with the prior art, the present invention has the following beneficial effects: The linear vector vibrating feeder provided by the present invention provides a plurality of elastic members between the internal vibrating body and the external vibrating body, and utilizes the force arm formed by the distance between the elastic members along the length direction and the height direction of the internal vibrating body to cooperate with the equivalent stiffness of the elastic members along the width direction of the internal vibrating body to jointly suppress the relative translational movement of the internal vibrating body and the external vibrating body along the width direction and the relative rotational movement around the length direction axis and the height direction axis. By reducing the rotational inertia of the internal vibrating body in the length-height direction plane and increasing the distance from the installation point of the elastic member on the internal vibrating body to the center of mass of the internal vibrating body to increase the rotational stiffness of the internal vibrating body in the length-height direction plane, the relative rotational vibration natural frequency of the internal vibrating body and the external vibrating body in the length-height direction plane is jointly increased, and the pitching movement of the internal vibrating body relative to the external vibrating body of the vector vibrating feeder when working is indirectly suppressed, the movement consistency of each point on the component conveying component is improved, and the stability of component conveying is improved; By setting a support body between the elastic part and the ground or the base, and supporting the support body at a node position close to the vibration mode corresponding to the working target mode of the linear vector vibration feeder, the vibration transmitted to the ground can be reduced, and the vibration components of other modes can be absorbed without basically affecting the feeding vibration, thereby further improving the feeding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an isometric view of a linear vector vibrating feeder according to Embodiment 1 of the present invention; Figure 2 for Figure 1 An isometric exploded view of the linear vector vibratory feeder shown; Figure 3 for Figure 1 The front view of the linear vector vibrating feeder shown; Figure 4 for Figure 1 A top view of the linear vector vibrating feeder shown; Figure 5 for Figure 1 A side view of the linear vector vibratory feeder shown; Figure 6 for Figure 1 The linear vector vibrating feeder shown is along Figure 4 Sectional view along line AA; Figure 7 for Figure 1 The linear vector vibrating feeder shown is along Figure 4 Sectional view along the midline BB; Figure 8 for Figure 1 The linear vector vibrating feeder shown is along Figure 4 Sectional view of the mid-CC line; Fig. 9 It is an isometric view of a linear vector vibrating feeder according to a second embodiment of the present invention; Fig.10 for Fig. 9 An isometric exploded view of the linear vector vibratory feeder shown; Fig.11 for Fig. 9 A top view of the linear vector vibrating feeder shown; Fig.12 for Fig. 9 The linear vector vibrating feeder shown is along Fig.11 Sectional view along the mid-DD line; Fig.13 for Fig. 9 A side view of the linear vector vibratory feeder shown; Fig.14 It is an isometric view of a linear vector vibrating feeder according to Embodiment 3 of the present invention; Fig.15 for Fig.14 An isometric exploded view of the linear vector vibratory feeder shown; Fig.16 for Fig.14The front view of the linear vector vibrating feeder shown; Fig.17 for Fig.14 A top view of the linear vector vibrating feeder shown; Fig.18 for Fig.14 A side view of the linear vector vibratory feeder shown; Fig.19 for Fig.14 The linear vector vibrating feeder shown is along Fig.17 Sectional view along line EE; Fig. 20 for Fig.14 The linear vector vibrating feeder shown is along Fig.18 Sectional view along line FF; Fig.21 It is an isometric view of a linear vector vibrating feeder according to a fourth embodiment of the present invention; Fig. 22 for Fig.21 An isometric exploded view of the linear vector vibratory feeder shown; Fig.23 for Fig.21 A top view of the linear vector vibrating feeder shown; Fig.24 for Fig.21 A side view of the linear vector vibratory feeder shown; Fig.25 for Fig.21 The linear vector vibrating feeder shown is along Fig.23 Sectional view of the mid-GG line; Fig.26 for Fig.21 An isometric view of the elastic body structure in the linear vector vibrating feeder shown; Fig. 27 for Fig.21 An isometric exploded view of the elastomer structure in the linear vector vibratory feeder shown.

[0026] In the figure: 10, component conveying member, 20, internal vibrating body, 21, conveying member mounting portion, 22, internal elastic member mounting portion, 23, internal vibration mechanism mounting portion, 24, counterweight, 28, first electromagnet armature, 29, second electromagnet armature, 30, external vibrating body, 31, external elastic member mounting portion, 32, external vibration mechanism mounting portion, 38, first electromagnet, 39, second electromagnet, 40, elastic member, 50, supporting body, 60, mounting surface, 70, base; 71, spring sheet; 72, elastic beam. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0030] like Figures 1 to 8 As shown, a linear vector vibrating feeder according to an embodiment of the present invention comprises: 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 for providing an excitation force disposed between the internal vibrating body 20 and the external vibrating body 30. The mounting surface 60 may be the ground or the like.

[0031] As shown in FIG. 1 and FIG. 2 , the external vibrator 30 is a structure composed of an external elastic member mounting portion 31 and an external excitation mechanism mounting portion 32 . The external elastic member mounting portion 31 is located at both ends of the external excitation mechanism mounting portion 32 in the width direction.

[0032] The internal vibrator 20 is a structure composed of a conveying member mounting part 21, an external elastic member mounting part 22, an external excitation mechanism mounting part 23 and a counterweight 24. The upper surface of the conveying member mounting part 21 is relatively flat and is used to mount the conveying member 10. The front and rear parts are respectively connected to an external elastic member mounting part 22, and the 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. There is an opening in the middle of the external excitation mechanism mounting part 32 of the external vibrator 30. The internal vibrator 20 is located between the two external elastic member mounting parts 31 of the external vibrator 30. The external excitation mechanism mounting part 23 of the internal vibrator 20 passes through the hole 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 center of mass of the internal vibrator 20 and the external vibrator 30 are completely overlapped, and the mass distribution of the internal vibrator 20 is concentrated near the center of mass.

[0033] The elastic member 40 is connected between the external elastic member mounting portion 22 of the internal vibration body 20 and the external elastic member mounting portion 31 of the external vibration body 30. In this embodiment, the elastic member 40 is in the form of a long straight beam, and after installation, the length direction of the elastic member 40 points to the width direction of the internal vibration body 20, so that the equivalent stiffness of each elastic member 40 in the width direction of the internal vibration body 20 is greater than the equivalent stiffness in other directions perpendicular to this direction.

[0034] In the length and height directions of the internal vibrator 20, the connection points between each elastic member 40 and the internal vibrator 20 are located at the two ends, so that the multiple elastic members 40 have sufficient force arm length in the length and height directions, which cooperates with the stiffness of the elastic member 40 in the width direction, thereby allowing the internal vibrator 20 and the external vibrator 30 to perform relative translational movement along the length and height directions, suppressing the relative rotational movement of the internal vibrator 20 and the external vibrator around any straight line parallel to the width direction, and at the same time jointly suppressing the relative translational movement of the internal vibrator 20 and the external vibrator 30 along the width direction and the relative rotational movement around any straight line perpendicular to the width direction.

[0035] Through the mass distribution of the internal vibration body 20 and the position setting of the connection point between the elastic member 40 and the internal vibration body 20, the following relationship is established: that is, the first plane passing through the center of mass of the internal vibration body 20 and perpendicular to the length direction divides the internal vibration body 20 into a front vibration part and a rear vibration part, and 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 member 40 on the front vibration part to the first plane and the distance from the installation position of the elastic member 40 on the rear vibration part to the first plane.

[0036] At the same time, the second plane passing through the mass center 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, and the product of the distance from the mass center of the upper vibrating part to the second plane and the distance from the mass center of the lower vibrating part to the second plane is less than the product of the distance from the installation position of the elastic member 40 on the upper vibrating part to the second plane and the distance from the installation position of the elastic member 40 on the lower vibrating part to the second plane. In this way, the effect of the relative translation vibration natural frequency of the internal vibrating body 20 and the external vibrating body 30 in the length-height direction plane being less than the relative rotation vibration natural frequency around the mass center in the length-height direction plane can be achieved.

[0037] In addition, the frequencies of all interference modes are higher than the frequencies of the two target working modes, so that the internal vibration body (20) and the external vibration body 30 can perform relative translational motion along the length direction and the height direction, while suppressing the relative rotational motion of the internal vibration body 20 and the external vibration body 30 around any straight line parallel to the width direction, and suppressing the relative translational motion of the internal vibration body 20 and the external vibration body 30 along the width direction, and suppressing the relative rotational motion of the internal vibration body 20 and the external vibration body 30 around any straight line parallel to the length direction, and suppressing the relative rotational motion of the internal vibration body 20 and the external vibration body 30 around any straight line parallel to the height direction.

[0038] A first set of excitation mechanisms and a second set of excitation mechanisms for applying longitudinal translational motion and height translational motion to the component conveying member 10 are further provided between the internal vibrating body 20 and the external vibrating body 30 .

[0039] The first group of excitation mechanisms and the second group of excitation mechanisms output excitation forces of the same frequency, which is near the natural frequencies of the lengthwise translational mode and the heightwise translational mode (hereinafter collectively referred to as the working target mode) of the component conveying member 10 .

[0040] A first electromagnet 38 and a second electromagnet 39 are arranged on the external excitation mechanism mounting part 32 of the external vibrating body 30. The first electromagnet 38 is arranged to face the height direction and pass through the center of mass of the internal vibrating body 20, and the second electromagnet 39 is arranged to face the length direction and pass through the center of mass of the internal vibrating body 20; on the external excitation mechanism mounting part 23 of the internal vibrating body 20, at positions corresponding to the first electromagnet 38 and the second electromagnet 39, a first electromagnet armature 28 with the same direction as the first electromagnet 38 and a second electromagnet armature 29 with the same direction as the second electromagnet 39 are respectively arranged.

[0041] Among them, the first electromagnet 38 facing the vertical direction and the corresponding first electromagnet armature 28 are used as the first group of excitation mechanisms. When the first electromagnet 38 is energized, an electromagnetic attraction force periodically acts between the first electromagnet 38 and the first electromagnet armature 28. Due to the electromagnetic attraction force and the restoring force of the elastic member 40 in the vertical direction, the internal vibrating body 20 and the component conveying member 10 generate vertical translational vibration relative to the external vibrating body 30.

[0042] The second set of excitation mechanisms is formed by the second electromagnet 39 and the corresponding second electromagnet armature 29 facing the horizontal length direction. When the second electromagnet 39 is energized, an electromagnetic attraction is periodically applied between the second electromagnet 39 and the second electromagnet armature 29. The electromagnetic attraction and the restoring force of the elastic member 40 in the horizontal direction cause the internal vibrating body 20 and the component conveying member 10 to produce horizontal length direction translation vibration relative to the external vibrating body 30. The two directions act together to make the composite motion trajectory of any point on the component conveying member 10 present as an ellipse.

[0043] The resultant torque output by the first set of excitation mechanisms is zero, the resultant force is in the vertical direction and passes through the mass center of the component conveying member 10 and the internal vibrating body. The resultant torque output by the second set of excitation mechanisms is zero, the resultant force is in the longitudinal direction and passes through the mass center of the component conveying member 10.

[0044] A support body 50 for supporting the entire feeder is also provided between the mounting surface 60 and the elastic member 40. The support body 50 is made of an elastic vibration-damping material or a wear-resistant material.

[0045] Specifically, one support point is provided below each of the four elastic members 40 near the bottom, and four identical support bodies 50 are provided between the four support points and the mounting surface 60. The support point is located at a node position where the amplitude of the vibration type corresponding to the target working mode of the feeder is the smallest. By providing the support body 50, the main vibration of the feeder during operation will not be transmitted to the mounting surface 60 through the support body 50, thereby reducing the vibration transmitted to the mounting surface 60, and at the same time, the vibration of other modes can be absorbed by the support body 50, further improving the motion stability of the internal vibration body 20.

[0046] In the above embodiment, the support body 50 is composed of four independent components, but the support body 50 is not limited to being independent components, and may also be connected into a whole.

[0047] The support body 50 and the elastic member 40 may be directly connected or connected via an elastic vibration-damping material or a wear-resistant material.

[0048] Likewise, the support body 50 and the mounting surface 60 may be directly connected or connected via an elastic vibration-damping material or a wear-resistant material. Example

[0049] like Figures 9 to 13 FIG. 1 is a schematic diagram of the structure of a linear vector vibrating feeder according to the second embodiment of the present invention.

[0050] The structure of this embodiment is substantially the same as that of the first embodiment, except that the structures of the elastic member and the support body are different.

[0051] Specifically, the elastic member 40 is a Z-shaped structure formed by bending a thin sheet, and mounting points are provided at both ends of the Z-shaped structure. The mounting point at one end is connected to the external elastic member mounting portion 22 on the internal vibrating body 20, and the mounting point at the other end is connected to the external elastic member mounting portion 31 on the external vibrating body 30. After installation, the stiffness of the Z-shaped spring sheet 40 in the length direction and the height direction is relatively small.

[0052] The bottom surface of the support body 50 is mounted on the mounting surface 60, and the top surface is a columnar structure. A support point is set on each of the two elastic members 40 near the bottom, and the two support points are connected to the columnar structure of the support body 50 through elastic vibration-damping materials. The support point is located at the node position where the amplitude of the vibration mode corresponding to the working target mode of the feeder is the smallest. Example

[0053] like Figures 14 to 20 FIG. 1 is a schematic diagram of the structure of a linear vector vibrating feeder according to the third embodiment of the present invention.

[0054] The structure of this embodiment is substantially the same as that of the first embodiment, except that the structures of the elastic member 40 and the supporting body 50 are different.

[0055] The elastic member 40 is an integrated sheet structure. Specifically, a long strip of internal vibration body connection part is provided in the center of the elastic member 40, and a long strip of external vibration body connection part is provided on both sides. An elastic beam is arranged between the internal vibration body connection part and the external vibration body connection part. Each elastic beam is perpendicular to the internal vibration body connection part and the external vibration body connection part. Each elastic beam is arranged in parallel with equal intervals. The elastic beam, the internal vibration body connection part and the external vibration body connection part together constitute the elastic member 40. Support points are provided under each elastic beam, and these support points are located near the node position with the smallest amplitude of the vibration type corresponding to the working target mode of the feeder.

[0056] The two elastic members 40 are respectively located above and below the external vibrating body 30 , the internal vibrating body connecting portion of the elastic member 40 is connected to the external elastic member mounting portion 22 on the internal vibrating body 20 , and the external vibrating body connecting portion of the elastic member 40 is connected to the elastic member mounting portion 31 on the external vibrating body 30 .

[0057] The support body 50 is an integrated structure, consisting of two parallel straight beams and two inverted U-shaped structures supporting the two straight beams from below. The upper parts of the two straight beams in the support body 50 are connected to the supporting points on the two rows of elastic beams in the upper elastic member 40 through elastic vibration-damping materials. The inverted U-shaped structure in the support body 50 is connected to the mounting surface 60. Example

[0058] like Figures 21 to 27 , which is a schematic structural diagram of a linear vector vibrating feeder according to a fourth embodiment of the present invention.

[0059] The structure of this embodiment is substantially the same as that of the first embodiment, except that the structure of the elastic member 40 is different.

[0060] Specifically, Fig.26 , 27 As shown, the elastic member 40 is a structure assembled by three spring sheets 71. A long central connecting portion is provided in the center of each spring sheet, and long outer connecting portions are provided on both sides. An elastic beam 72 is 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, and each elastic beam is arranged in parallel with equal spacing. The central connecting portion of the first spring sheet is connected to the central connecting portion of the second spring sheet through a gasket, and the outer connecting portion of the second spring sheet is connected to the outer connecting portion of the third spring sheet through a gasket, and together they are assembled into the elastic member 40.

[0061] The outer connecting portion of the first spring sheet is used as the outer vibrating body connecting portion of the elastic member 40, and the central connecting portion of the third spring sheet is used as the inner vibrating body connecting portion of the elastic member 40. By adjusting the mass of the inner vibrating body 20 and the outer vibrating body 30 and the material and size of each spring sheet, the outer connecting portion of the second spring sheet, the outer connecting portion of the third spring sheet and the gasket therebetween are roughly located at the node position where the amplitude of the vibration mode corresponding to the working target mode of the feeder is the smallest, and a support point is set at this position below the elastic member 40.

[0062] The outer vibration body connection part of the elastic member 40 is connected to the outer elastic member mounting part 31 of the outer vibration body 30, and the inner vibration body connection part of the elastic member 40 is connected to the outer elastic member mounting part 22 of the inner vibration body 20. The four supporting points of the elastic member 40 are connected to the mounting surface through the supporting body 50 below.

[0063] The present invention controls the mass distribution of the internal vibrating body 20 while arranging a plurality of elastic members 40, so as to concentrate the output energy of the exciting mechanism on the working target mode and reduce the amplitude amplification factor of the pitch motion mode within the working frequency band, thereby suppressing the relative pitch motion of the feeder during operation; and by arranging a support body 50 on the target mode node, thereby reducing the vibration transmitted to the ground and absorbing the vibration components of other modes without substantially affecting the feeding vibration, further suppressing useless motion modes such as the pitch motion of the feeder during operation, thereby improving the feeding stability.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A linear vector vibrating feeder, characterized in that: include: Internal vibrating body; An external vibrating body, the center of mass of which coincides with that of the internal vibrating body; A plurality of elastic members are arranged between the internal vibrating body and the external vibrating body, and are spaced apart on both sides of the center of mass of the internal vibrating body along the length direction and the height direction; The exciter assembly is arranged between the internal vibrating body and the external vibrating body, and provides exciting force along the length direction and the height direction passing through the center of mass of the internal vibrating body.

2. The linear vector vibrating feeder according to claim 1, characterized in that: The equivalent stiffness of the elastic member in the width direction of the internal vibrator is greater than the equivalent stiffness in the direction perpendicular to the width direction of the internal vibrator, and the equivalent stiffness of the elastic member in the length direction and the height direction are similar.

3. The linear vector vibrating feeder according to claim 2, characterized in that: A first plane passing through the center of mass of the internal vibration body and perpendicular to the length direction divides the internal vibration body into a front vibration part and a rear vibration part; 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 smaller than the product of the distance from the installation position of the elastic part on the front vibration part to the first plane and the distance from the installation position of the elastic part on the rear vibration part to the first plane.

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

5. The linear vector vibrating feeder according to any one of claims 1 to 4, characterized in that: The relative translation vibration natural frequency of the internal vibrating body and the external vibrating body in the length-height direction plane is smaller than the relative rotation vibration natural frequency about the center of mass in the length-height direction plane; The frequency of the vibration mode corresponding to the relative translation between the internal vibrating body and the external vibrating body in the length direction and the frequency of the vibration mode corresponding to the relative translation between the internal vibrating body and the external vibrating body in the height direction are similar.

6. The linear vector vibrating feeder according to claim 5, characterized in that: The elastic member is configured to limit the relative translational movement of the internal vibration body and the external vibration body along the length direction and the height direction, to suppress the relative rotational movement of the internal vibration body and the external vibration body around any straight line parallel to the width direction, and to jointly suppress the relative translational movement of the internal vibration body and the external vibration body along the width direction and the relative rotational movement around any straight line perpendicular to the width direction.

7. The linear vector vibrating feeder according to claim 1, characterized in that: The internal vibrating body is provided with a conveying member mounting portion, and the two ends of the bottom surface of the conveying member mounting portion are respectively provided with an internal elastic member mounting portion extending in the height direction, and the middle part of the bottom surface is provided with an internal excitation mechanism mounting portion extending in the height direction and connected to a counterweight at the free end; The external vibrating body is provided with an external excitation mechanism mounting portion and an external elastic member mounting portion, the external excitation mechanism mounting portion is provided with an opening, and both ends along the width direction are respectively connected to an external elastic member mounting portion; The internal vibration mechanism mounting part is placed downwardly between the two external elastic member mounting parts, a counterweight is connected at a free end located below the external vibration mechanism mounting part through an opening on the external vibration mechanism mounting part, and the vibration exciter assembly is arranged between the internal vibration mechanism mounting part and the external vibration mechanism mounting part; The two internal elastic member mounting parts are respectively placed downwardly between the two external elastic member mounting parts, and are located at both ends of the external excitation mechanism mounting part along the length direction; the internal elastic member mounting part and the external elastic member mounting part are elastically connected at both ends along the height direction through a plurality of elastic members.

8. The linear vector vibrating feeder according to claim 7, characterized in that: The internal vibration mechanism mounting portion includes a transverse mounting portion and a vertical mounting portion in an inverted L-shape; the opening of the external vibration mechanism mounting portion is in an inverted L-shape along the height direction to match the internal vibration mechanism mounting portion.

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

10. The linear vector vibrating feeder according to claim 9, characterized in that: The first group of excitation mechanisms includes a first electromagnet and a first electromagnet armature which are relatively matched and arranged in the height direction; the first electromagnet armature is arranged on the bottom surface of the transverse mounting portion of the internal excitation mechanism mounting portion facing the opening on the external excitation mechanism mounting portion, and the first electromagnet is arranged at the inverted L-shaped transverse portion of the opening of the external excitation mechanism mounting portion; The second group of excitation mechanisms includes a second electromagnet and a second electromagnet armature that are relatively matched and arranged along the length direction; the second electromagnet is arranged on the external excitation mechanism mounting part, and the second electromagnet armature is arranged on the vertical mounting part of the internal excitation mechanism mounting part.

11. The linear vector vibrating feeder according to claim 8, characterized in that: The external excitation mechanism mounting part includes a first external mounting part and a second external mounting part which are arranged in parallel from top to bottom, the first external mounting part is provided with a first opening, the second external mounting part is provided with a second opening, the size of the first opening is larger than the size of the second opening, one side of the openings are aligned and are in an inverted L-shape from top to bottom.

12. The linear vector vibrating feeder according to claim 1, characterized in that: The vibration mode corresponding to the relative translation of the internal vibrating body and the external vibrating body in the length direction and the vibration mode corresponding to the relative translation in the height direction are respectively the two target working modes of the linear vector vibrating feeder; All modes other than the vibration mode of relative stillness or relative translational motion of the internal vibrating body and the external vibrating body in the length-height plane are interference modes of the linear vector vibrating feeder; The frequencies of the interference modes are all higher than the frequencies of the two target working modes.

13. The linear vector vibrating feeder according to claim 1, characterized in that: It also includes a support body, which is arranged under the elastic member at a node position with the smallest amplitude of the vibration type corresponding to the target working mode of the linear vector vibration feeder close to the elastic member, and the number of connection points between the support body and the elastic member is not less than 3 and the projections on the corresponding bottom mounting surface are not on a straight line.

14. The linear vector vibrating feeder according to claim 13, characterized in that: The elastic member and the support body are both long straight beam structures; Both sides of the top end of the internal elastic member mounting portion are connected to the external elastic member mounting portion through one of the elastic members respectively along the width direction; Both sides of the bottom end of the internal elastic member mounting portion are connected to the external elastic member mounting portion along the width direction through an elastic member respectively, and a support body is installed under the elastic member at a node position with the smallest amplitude of the vibration type corresponding to the target working mode of the linear vector vibration feeder.

15. The linear vector vibrating feeder according to claim 13, characterized in that: The elastic member is in a Z-shaped structure formed by bending a thin sheet; The top end of the internal elastic member mounting portion is connected to one end of the Z-shaped structure of the elastic member, and the other end of the Z-shaped structure of the elastic member is connected to the external elastic member mounting portion; The bottom end of the internal elastic member mounting portion is connected to one end of the Z-shaped structure of the elastic member, the other end of the Z-shaped structure of the elastic member is connected to the external elastic member mounting portion, and the support body extends upward and is connected to the vertical plate of the Z-shaped structure of the elastic member.

16. The linear vector vibrating feeder according to claim 13, characterized in that: The elastic member is in a sheet-like structure, comprising two mutually parallel external vibration body connection parts and an internal vibration body connection part located between the two external vibration body connection parts, and a plurality of elastic beams arranged in parallel at equal intervals are arranged between the external vibration body connection part and the internal vibration body connection part; The bottom ends of the two internal elastic member mounting parts are respectively connected to an internal vibration body connecting part of the elastic member located below the counterweight in the length direction, and the two external vibration body connecting parts of the elastic member are respectively connected to the bottom ends of the external elastic member mounting parts on both sides in the width direction; The top ends of the two internal elastic member mounting parts are respectively connected to the internal vibration body connecting part of one elastic member in the length direction, and the two external vibration body connecting parts of the elastic member are respectively connected to the top ends of the external elastic member mounting parts on both sides in the width direction; The support body includes two straight beams parallel to each other and two inverted U-shaped structural beams supporting the straight beams from below. The straight beam support is arranged on the elastic beam of the elastic member connected to the top end of the internal elastic member mounting portion.

17. The linear vector vibrating feeder according to claim 13, characterized in that: The elastic member comprises three spring sheets; each of the spring sheets is provided with a long central connecting portion in the center, and a long outer connecting portion is provided on both sides; a plurality of elastic beams are arranged in parallel at equal intervals between the central connecting portion and the outer connecting portion, and each of the elastic beams is perpendicular to the central connecting portion and the outer connecting portion; The central connecting portion of the first spring sheet is connected to the central connecting portion of the second spring sheet through a gasket, and the outer connecting portion of the second spring sheet is connected to the outer connecting portion of the third spring sheet through a gasket; The two sides of the outer connecting portion of the first spring sheet are respectively connected to the two outer elastic component mounting portions, and the central connecting portion of the third spring sheet is connected to the inner elastic component mounting portion.

18. The linear vector vibrating feeder according to claim 13, characterized in that: The support body and the elastic member are directly connected or connected via an elastic vibration-damping material or a wear-resistant material; The support body is directly connected to the bottom mounting surface or is connected via an elastic vibration-damping material or a wear-resistant material.

19. The linear vector vibrating feeder according to claim 18, characterized in that: 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 an elastic vibration-damping material or a wear-resistant material.

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