Vibrating component conveying device

Abstract

A vibration type component conveying device in which an intermediate vibration body (3a, 3b) is arranged on the lower side of a base (1), a horizontal vibration plate spring (6a, 6b) is arranged so as to extend in the up-down direction while avoiding the base (1), the upper end portion of the horizontal vibration plate spring (6a, 6b) is fixed to an upper vibration body (4), and the lower end portion of the horizontal vibration plate spring (6a, 6b) is fixed to the intermediate vibration body (3a, 3b).

Description

Technical Field

[0001] This invention relates to a vibratory component conveying device that uses a trough to vibrate and convey components. Background Technology

[0002] As a vibratory component conveying device that conveys components by vibrating a groove having a component conveying path that extends in a straight line in the front-back direction, a composite vibration device is known that uses a separate excitation electromagnet to generate vertical and horizontal vibrations and uses the vibration of the combined vertical and horizontal vibrations to convey components (for example, Patent Document 1).

[0003] Patent Document 1 discloses a vibratory component conveying device comprising: a base supported on a ground component via a vibration damping component; an intermediate vibrating body connected to the base via a horizontal vibrating leaf spring; an upper vibrating body connected to the intermediate vibrating body via a vertical vibrating leaf spring; a trough mounted on the upper vibrating body; a vertical excitation electromagnet applying vertical vibration to the upper vibrating body; and a horizontal excitation electromagnet applying forward-backward vibration to the upper vibrating body. A component conveying path extending linearly in the forward-backward direction is provided in the trough.

[0004] This vibratory component conveying device combines vertical vibrations generated by a vertical excitation electromagnet in the up-down direction and horizontal vibrations generated by a horizontal excitation electromagnet in the front-back direction with a predetermined phase difference, thereby causing the upper vibrating body to produce elliptical vibrations (the movement of each point in the groove reciprocating in a manner that traces an elliptical trajectory with a major axis inclined relative to the horizontal), and the components on the groove move from the rear to the front through these elliptical vibrations.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-95597

[0006] However, when a horizontal vibration in the front-to-back direction is applied to the upper vibrating body using a horizontal excitation electromagnet fixed to the base, due to the action-reaction relationship, forces acting in opposite directions are generated on the upper vibrating body and the base. At this time, due to the shift of the lines of action of the forces acting on the upper vibrating body and the base from the center of gravity, pitch motion (a oscillating motion in a back-and-forth tilting manner) is generated on both the upper vibrating body and the base. Here, the pitch motion of the upper vibrating body observed from the ground is a combination of the pitch motion of the base observed from the ground and the relative pitch motion of the upper vibrating body relative to the base. Furthermore, the pitch motion of the base observed from the ground and the relative pitch motion of the upper vibrating body relative to the base are in opposite phase. Therefore, in the vibrating component conveying device of Patent Document 1, a counterweight for adjusting the mass of the base is provided in order to effectively counteract the pitch motion of the upper vibrating body using the pitch motion of the base. By adding or removing this counterweight, the amplitude of the pitch motion of the base observed from the ground can be adjusted.

[0007] However, when a counterweight for adjusting the mass of the base is added to adjust the amplitude of the pitching motion of the base, the overall mass of the device also increases. As a result, the natural vibration frequency of the device decreases and the conveying speed of the components slows down.

[0008] Furthermore, in the vibrating component conveying device of Patent Document 1, the spring connecting the upper vibrating body and the intermediate vibrating body is a vertical vibrating leaf spring, and the spring connecting the intermediate vibrating body and the base is a horizontal vibrating leaf spring. Therefore, when the upper vibrating body is vibrated using a horizontal excitation electromagnet, the groove, the upper vibrating body, the intermediate vibrating body, and the groove, the upper vibrating body, and the intermediate vibrating body in the base vibrate together in the front-back direction, while the base moves in the front-back direction with opposite phase. Here, the ratio of the amplitude of the upper vibrating body in the front-back direction to the amplitude of the base in the front-back direction is the ratio of the reciprocal of the total mass of the groove, the upper vibrating body, and the intermediate vibrating body to the reciprocal of the mass of the base. Therefore, the amplitude of the upper vibrating body in the front-back direction (i.e., the vibration of the groove in the front-back direction) tends to be small, making it difficult to increase the conveying speed of the component. Summary of the Invention

[0009] The problem to be solved by the present invention is to provide a vibratory component conveying device capable of conveying components at a high conveying speed.

[0010] To address the aforementioned issues, the present invention provides a vibratory component conveying device with the following structure.

[0011] [Structure 1]

[0012] A vibratory component conveying device, wherein:

[0013] The base is supported on the ground component by vibration damping components;

[0014] The intermediate vibrating body is connected to the aforementioned base via a vertically vibrating leaf spring;

[0015] The upper vibrating body is connected to the aforementioned intermediate vibrating body via a horizontal vibration leaf spring;

[0016] The trough is installed on the upper vibrating body and has a component conveying path that extends in a straight line in the front-back direction;

[0017] A vertically vibrating electromagnet applies vertical vibration to the aforementioned upper vibrating body; and

[0018] A horizontally vibrating electromagnet applies back-and-forth vibration to the aforementioned upper vibrating body.

[0019] The aforementioned intermediate vibrating body is positioned on the lower side of the aforementioned base.

[0020] The aforementioned leaf spring for horizontal vibration is configured to extend vertically, avoiding the aforementioned base platform.

[0021] The upper end of the aforementioned horizontal vibration leaf spring is fixed to the aforementioned upper vibrating body, and the lower end of the aforementioned horizontal vibration leaf spring is fixed to the aforementioned intermediate vibrating body.

[0022] If this structure is adopted, the spring connecting the upper vibrating body and the middle vibrating body is a horizontal vibrating leaf spring, and the spring connecting the middle vibrating body and the base is a vertical vibrating leaf spring. Therefore, when the upper vibrating body is vibrated using a horizontal excitation electromagnet, the slot and the upper vibrating body vibrate together in the front-to-back direction, while the base and the middle vibrating body move together in the front-to-back direction with opposite phases. Here, the ratio of the amplitude of the upper vibrating body in the front-to-back direction to the amplitude of the base in the front-to-back direction is the ratio of the reciprocal of the total mass of the slot and the upper vibrating body to the reciprocal of the total mass of the base and the middle vibrating body. Therefore, compared to interchange the horizontal vibrating leaf spring and the vertical vibrating leaf spring (i.e., the upper vibrating body and the middle vibrating body are connected by a vertical vibrating leaf spring, and the middle vibrating body and the base are connected by a horizontal vibrating leaf spring), the amplitude of the upper vibrating body in the front-to-back direction can be increased, and the components can be conveyed at a high conveying speed.

[0023] Furthermore, the design employs a structure where an intermediate vibrating body is positioned below the base, a horizontal vibrating leaf spring is positioned to extend vertically away from the base, the upper end of the horizontal vibrating leaf spring is fixed to the upper vibrating body, and the lower end of the horizontal vibrating leaf spring is fixed to the intermediate vibrating body. Therefore, the length of the horizontal vibrating leaf spring is relatively long. Consequently, the amplitude of the upper vibrating body in the forward and backward directions can be set to a larger value, enabling the transport of components at high speeds.

[0024] [Structure 2]

[0025] According to the vibratory component conveying device described in Structure 1, wherein,

[0026] The aforementioned intermediate vibrator is composed of a front intermediate vibrator and a rear intermediate vibrator arranged separately.

[0027] The aforementioned horizontal vibration leaf spring is composed of a horizontal vibration leaf spring connecting the front side of the intermediate vibrating body and the front side of the upper vibrating body, and a horizontal vibration leaf spring connecting the rear side of the intermediate vibrating body and the rear side of the upper vibrating body.

[0028] The aforementioned vertical vibration leaf spring is composed of a vertical vibration leaf spring connecting the aforementioned front intermediate vibrating body to the front side of the aforementioned base, and a vertical vibration leaf spring connecting the aforementioned rear intermediate vibrating body to the rear side of the aforementioned base.

[0029] If this structure is adopted, the intermediate vibrator consists of a front intermediate vibrator and a rear intermediate vibrator arranged separately. The front and rear intermediate vibrators can move independently in the vertical direction relative to the base, thus suppressing the pitch motion of the base from being restricted by the intermediate vibrators. Therefore, the pitch motion of the upper vibrator can be effectively counteracted by the pitch motion of the base.

[0030] [Structure 3]

[0031] According to the vibratory component conveying device described in Structure 2, wherein,

[0032] The aforementioned front-side horizontal vibration leaf springs are arranged in pairs, spaced apart in the front-rear direction.

[0033] The upper ends of the aforementioned pair of front-side horizontal vibration leaf springs clamp each other from the front and back onto the spring fixing plate disposed on the front side of the aforementioned upper vibration body, and the lower ends of the aforementioned pair of front-side horizontal vibration leaf springs clamp each other from the front and back onto the aforementioned front-side middle vibration body.

[0034] The aforementioned rear-side horizontal vibration leaf springs are arranged in pairs, spaced apart in the front-to-back direction.

[0035] The upper ends of the aforementioned pair of rear-side horizontal vibration leaf springs clamp each other from the front and back to the spring fixing plate disposed on the rear side of the aforementioned upper vibration body, and the lower ends of the aforementioned pair of rear-side horizontal vibration leaf springs clamp each other from the front and back to the aforementioned rear-side intermediate vibration body.

[0036] With this structure, the front intermediate vibrator and the upper vibrator are connected by front horizontal vibrating leaf springs arranged in pairs, spaced apart in the front-rear direction. Therefore, even if the front horizontal vibrating leaf springs deform in the front-rear direction, the tilt of the upper vibrator relative to the front intermediate vibrator is limited, and the upper vibrator moves in the front-rear direction parallel to the front intermediate vibrator. Similarly, the rear intermediate vibrator and the upper vibrator are connected by rear horizontal vibrating leaf springs arranged in pairs, spaced apart in the front-rear direction. Therefore, even if the rear horizontal vibrating leaf springs deform in the front-rear direction, the tilt of the upper vibrator relative to the rear intermediate vibrator is limited, and the upper vibrator moves in the front-rear direction parallel to the rear intermediate vibrator. Thus, stable front-rear vibration of the upper vibrator can be obtained.

[0037] [Structure 4]

[0038] According to the vibratory component conveying device described in Structure 3, wherein...

[0039] The aforementioned paired front-side horizontal vibration leaf springs are respectively installed on the left and right sides of the aforementioned upper vibrating body.

[0040] The aforementioned front spring retaining plate is a protrusion that extends from the upper vibrating body to the left and right sides respectively.

[0041] The aforementioned paired rear-side horizontal vibration leaf springs are respectively installed on the left and right sides of the aforementioned upper vibrating body.

[0042] The aforementioned rear spring fixing plate is a protrusion that extends outward from the upper vibrating body to the left and right sides respectively.

[0043] If this structure is adopted, when viewed from above, the four horizontal vibrating leaf springs—the front horizontal vibrating leaf springs on both the left and right sides and the rear horizontal vibrating leaf springs on both the left and right sides—form a shape that surrounds the center of gravity of the upper vibrating body from the front, back, left, and right, thus making the horizontal vibration of the upper vibrating body and the groove particularly stable.

[0044] [Structure 5]

[0045] According to the vibratory component conveying device described in structure 3 or 4, wherein...

[0046] The horizontally vibrating leaf springs on one and the other front sides of the aforementioned pair are each formed by overlapping multiple leaf springs.

[0047] The horizontal vibration leaf springs on one and the other rear sides of the aforementioned pair of rear horizontal vibration leaf springs are each formed by overlapping multiple leaf springs.

[0048] With this structure, multiple overlapping leaf springs are used as the front and rear horizontal vibration leaf springs, respectively. Therefore, compared to using a single leaf spring with the same spring constant as the overlapping leaf springs, a thinner leaf spring can be used. This prevents spring breakage, and by setting a larger spring constant for both the front and rear horizontal vibration leaf springs, the conveying speed of the component can be increased.

[0049] [Structure 6]

[0050] According to any one of structures 2 to 5, the vibrating component conveying device, wherein,

[0051] The aforementioned front-side vertical vibration leaf springs are arranged in pairs, spaced apart in the vertical direction.

[0052] The aforementioned paired front vertical vibration leaf springs clamp the aforementioned front middle vibration body and the spring fixing block provided on the front side of the aforementioned base at positions where they are separated in the horizontal direction from above and below.

[0053] The aforementioned rear vertical vibration leaf springs are arranged in pairs, spaced apart in the vertical direction.

[0054] The aforementioned pair of rear-side vertical vibration leaf springs clamp the aforementioned rear-side intermediate vibrating body and the spring fixing block provided on the rear side of the aforementioned base at a position where they are separated in the horizontal direction from the top and bottom respectively.

[0055] With this structure, the front intermediate vibrator and the base are connected by a pair of front vertical vibrating leaf springs arranged at intervals in the vertical direction. Therefore, even when a rotational force is applied to the front intermediate vibrator by the front horizontal vibrating leaf spring, the tilting of the front intermediate vibrator relative to the base is limited, preventing the front horizontal vibrating leaf spring from tipping over. Similarly, the rear intermediate vibrator and the base are connected by a pair of rear vertical vibrating leaf springs arranged at intervals in the vertical direction. Therefore, even when a rotational force is applied to the rear intermediate vibrator by the rear horizontal vibrating leaf spring, the tilting of the rear intermediate vibrator relative to the base is limited, preventing the rear horizontal vibrating leaf spring from tipping over. Thus, stable front-to-back and vertical vibrations of the upper vibrator can be obtained.

[0056] [Structure 7]

[0057] According to any one of structures 1 to 6, the vibrating component conveying device, wherein,

[0058] The aforementioned vertical excitation electromagnet is positioned at the center of the front-rear direction of the aforementioned base.

[0059] The aforementioned horizontal excitation electromagnet is positioned on the aforementioned base at a position offset to one side from the center in the front-rear direction.

[0060] On the aforementioned base, a base center adjustment protrusion having a mass corresponding to the aforementioned horizontal excitation electromagnet is provided at a position offset from the center position in the front-rear direction to the other side in the front-rear direction.

[0061] If this structure is adopted, the offset of the center of gravity of the base caused by placing a horizontal excitation electromagnet at a position offset to one side of the base from the center position in the front-rear direction can be eliminated by setting a base center of gravity adjustment protrusion with a mass corresponding to the horizontal excitation electromagnet at a position offset to the other side of the base from the center position in the front-rear direction, and the center of gravity of the base can be set to the center position in the front-rear direction of the base.

[0062] [Structure 8]

[0063] According to any one of structures 1 to 7, the vibrating component conveying device, wherein,

[0064] The upper vibrating body is provided with a vertical excitation core that is spaced apart from the vertical excitation electromagnet and is opposed in the vertical direction, and a horizontal excitation core that is spaced apart from the horizontal excitation electromagnet and is opposed in the front-back direction.

[0065] The aforementioned vertical excitation core is positioned at the center of the upper vibrating body in the front-rear direction.

[0066] The aforementioned horizontal excitation core is positioned at a point offset to one side of the upper vibrating body from its central position in the front-rear direction.

[0067] In the aforementioned upper vibrating body, at a position offset from the center position in the front-rear direction to the other side in the front-rear direction, there is an upper center of gravity adjustment protrusion having a mass corresponding to the aforementioned horizontal excitation core.

[0068] If this structure is adopted, the shift in the center of gravity of the upper vibrator caused by placing a horizontal excitation core at a position offset to one side of the front-rear direction from the center position of the upper vibrator can be eliminated by setting an upper center of gravity adjustment protrusion with a mass corresponding to the horizontal excitation core at a position offset to the other side of the front-rear direction from the center position of the upper vibrator, and the center of gravity of the upper vibrator can be set to the center position of the front-rear direction of the upper vibrator.

[0069] [Structure 9]

[0070] According to any one of structures 1 to 8, the vibrating component conveying device, wherein,

[0071] A front-side counterweight fixing rail extending in the front-rear direction is provided at the front end of the aforementioned base.

[0072] The aforementioned front-side counterweight fixing rail secures the front counterweight in a manner that allows adjustment of its position in the front-back direction.

[0073] A rear-side counterweight fixing rail extending in the front-rear direction is provided at the rear end of the aforementioned base.

[0074] The rear side is fixed to the counterweight in a track that allows the position of the counterweight to be adjusted in the front-back direction.

[0075] This structure allows the fixed position of the weight on the front rail of the front end of the base to be moved forward, and the fixed position of the weight on the rear rail of the rear end of the base to be moved rearward, thereby increasing the inertial moment of the base around its center of gravity. Conversely, it allows the fixed position of the weight on the front rail of the front end of the base to be moved rearward, and the fixed position of the weight on the rear rail of the rear end of the base to be moved forward, thereby decreasing the inertial moment of the base around its center of gravity. In other words, without changing the mass of the base, the inertial moment of the base can be adjusted, thus adjusting the amplitude of the pitch motion of the base as observed from the ground. Therefore, without increasing the overall mass of the device, the inertial torque of the base used to counteract the pitching motion of the upper vibrating body by the pitching motion of the base can be adjusted, without causing a decrease in the overall natural vibration frequency of the device or a decrease in the conveying speed of the components due to the adjustment of the inertial torque of the base.

[0076] [Structure 10]

[0077] According to any one of structures 1 to 9, the vibrating component conveying device, wherein,

[0078] Side plates for mass adjustment are detachably installed on the side surfaces of the left and right sides of the aforementioned base.

[0079] If this structure is adopted, the total mass of the trough and the upper vibrator, and the ratio of their mass to the total mass of the base (including the side plates for mass adjustment) and the intermediate vibrator, can be changed by altering the mass of the side plates. This allows for changing the amplitude of the upper vibrator in the front-to-back direction, and its ratio to the amplitude of the base in the front-to-back direction, thereby adjusting the component's conveying speed.

[0080] [Structure 11]

[0081] According to any one of structures 1 to 10, the vibrating component conveying device, wherein,

[0082] A vertical displacement sensor for detecting the vertical displacement of the upper vibrating body relative to the base and a horizontal displacement sensor for detecting the horizontal displacement of the upper vibrating body relative to the base are provided in the central part of the base in the front-back direction.

[0083] If this structure is adopted, even when the upper vibrator is pitching relative to the base, the relative position of the upper vibrator relative to the base in the central part of the front-rear direction of the base will not be easily affected. Therefore, the displacement of the upper vibrator relative to the base can be detected with high precision by the vertical displacement sensor and the horizontal displacement sensor set in the central part of the front-rear direction of the base.

[0084] In the vibratory component conveying device of the present invention, the spring connecting the upper vibrating body and the intermediate vibrating body is a horizontal vibrating leaf spring, and the spring connecting the intermediate vibrating body and the base is a vertical vibrating leaf spring. Therefore, when the upper vibrating body is vibrated using a horizontal excitation electromagnet, the groove, the upper vibrating body, the intermediate vibrating body, and the base vibrate together in the front-back direction, while the base and the intermediate vibrating body move together in the front-back direction with opposite phases. Therefore, compared to interchange the horizontal vibrating leaf spring and the vertical vibrating leaf spring, the amplitude of the upper vibrating body in the front-back direction can be increased, and components can be conveyed at a high conveying speed.

[0085] Furthermore, the design employs a structure where an intermediate vibrating body is positioned below the base, a horizontal vibrating leaf spring is positioned to extend vertically away from the base, the upper end of the horizontal vibrating leaf spring is fixed to the upper vibrating body, and the lower end of the horizontal vibrating leaf spring is fixed to the intermediate vibrating body. Therefore, the length of the horizontal vibrating leaf spring is relatively long. Consequently, the amplitude of the upper vibrating body in the forward and backward directions can be set to a larger value, enabling the transport of components at high speeds. Attached Figure Description

[0086] Figure 1 This is a partial cross-sectional view showing the vibrating component conveying device according to an embodiment of the present invention.

[0087] Figure 2 It is part of the ellipsis slot when viewed from above. Figure 1 A diagram of a vibratory component conveying device.

[0088] Figure 3 Viewed from below Figure 1 A diagram of a vibratory component conveying device.

[0089] Figure 4 It is Figure 1 A partial cross-sectional view of the front of the vibratory component conveying device, shown in an enlarged view.

[0090] Figure 5 It is Figure 1 A partial cross-sectional view of the rear of the vibratory component conveying device, shown in enlarged view.

[0091] Figure 6 It is along Figure 4 A sectional view along line VI-VI.

[0092] Figure 7 It is along Figure 4 A sectional view along line VII-VII.

[0093] Figure 8 This is an explanation Figure 1The diagram shows the pitch motion of the upper vibrating body moving horizontally backward and the base moving horizontally forward.

[0094] Figure 9 This is shown for illustration. Figure 1 A simplified model of the pitching motion of a vibratory component conveying device (the device with the trough removed).

[0095] Figure 10 It is an illustrative representation. Figure 9 The diagram shows a simplified model where the amplitude of the pitch motion of the lower rigid body is larger than the amplitude of the relative pitch motion of the upper rigid body relative to the lower rigid body.

[0096] Figure 11 They are shown separately. Figure 10 The graph shows the relative displacement of the front end of the upper rigid body relative to the front end of the lower rigid body over time (dashed curve), the absolute displacement of the front end of the lower rigid body over time (dotted curve), and the absolute displacement of the front end of the upper rigid body over time (solid curve).

[0097] Figure 12 It shows that Figure 10 The diagram shows the fixed positions of the front and rear weights, with the weights positioned close to the center of gravity of the lower rigid body (base).

[0098] Figure 13 They are shown separately. Figure 12 The graph shows the relative displacement of the front end of the upper rigid body relative to the front end of the lower rigid body over time (dashed curve), the absolute displacement of the front end of the lower rigid body over time (dotted curve), and the absolute displacement of the front end of the upper rigid body over time (solid curve).

[0099] Figure 14 It is an illustrative representation. Figure 9 The diagram shows a simplified model in which the slot is installed on the upper rigid body, and the amplitude of the pitch motion of the lower rigid body is smaller than the amplitude of the pitch motion of the upper rigid body relative to the lower rigid body.

[0100] Figure 15 They are shown separately. Figure 14 The graph shows the relative displacement of the front end of the upper rigid body relative to the front end of the lower rigid body over time (dashed curve), the absolute displacement of the front end of the lower rigid body over time (dotted curve), and the absolute displacement of the front end of the upper rigid body over time (solid curve).

[0101] Figure 16 It shows that Figure 14The diagram shows the fixed positions of the front and rear weights, indicating their distance from the center of gravity of the lower rigid body (base).

[0102] Figure 17 They are shown separately. Figure 16 The graph shows the relative displacement of the front end of the upper rigid body relative to the front end of the lower rigid body over time (dashed curve), the absolute displacement of the front end of the lower rigid body over time (dotted curve), and the absolute displacement of the front end of the upper rigid body over time (solid curve).

[0103] Figure 18 It is a schematic representation of a structure in which the middle vibrating body on the front side is connected to the upper vibrating body by a single horizontal vibration on the front side using a leaf spring.

[0104] Figure 19 It is a schematic representation Figure 18 The diagram shows the state in which the upper vibrating body moves in the front-to-back direction relative to the middle vibrating body on the front side, causing the front horizontal vibrating leaf spring to undergo elastic deformation.

[0105] Figure 20 It schematically represents a structure in which the middle vibrating body on the front side and the upper vibrating body are connected by a pair of front horizontal vibrating leaf springs arranged in a way that are spaced apart in the front-rear direction.

[0106] Figure 21 It is a schematic representation Figure 20 The diagram shows the state in which the upper vibrating body moves in the front-to-back direction relative to the middle vibrating body on the front side, causing the front horizontal vibrating leaf spring to undergo elastic deformation.

[0107] Figure 22 This illustrates the use of a leaf spring formed by overlapping multiple leaf springs as... Figure 4 A diagram showing a modified example of a leaf spring used for horizontal vibration on the front side.

[0108] Figure 23 This diagram schematically illustrates the state of rotational force acting on the intermediate vibrator at the front in a structure in which the intermediate vibrator at the front is connected to the base via a single vertical vibrating leaf spring at the front.

[0109] Figure 24 This diagram schematically illustrates the state of rotational force acting on the intermediate vibrator on the front side in a structure in which the intermediate vibrator on the front side is connected to the base by a pair of vertical vibrating leaf springs arranged in a way that are spaced apart in the vertical direction.

[0110] Figure 25 This is shown for illustration. Figure 1A simplified model of the vertical displacement accompanying the reciprocating motion in the back-and-forth direction in a vibrating component conveying device is shown.

[0111] Figure 26 This means that in Figure 1 The diagram shows the vertical displacement accompanying the reciprocating motion in the front-to-back direction in a comparative example where the center of gravity of the upper vibrating body is offset from the center of gravity of the base in the front-to-back direction. Detailed Implementation

[0112] exist Figure 1 The diagram illustrates a vibratory component conveying device according to an embodiment of the present invention. This vibratory component conveying device includes: a base 1; vibration damping components 2a and 2b supporting the base 1; intermediate vibrating bodies 3a and 3b disposed on the lower side of the base 1; an upper vibrating body 4 disposed on the upper side of the base 1; vertical vibrating leaf springs 5a and 5b connecting the base 1 and the intermediate vibrating bodies 3a and 3b; horizontal vibrating leaf springs 6a and 6b connecting the intermediate vibrating bodies 3a and 3b and the upper vibrating body 4; a groove 7 mounted on the upper vibrating body 4; a vertical excitation electromagnet 8 for applying vertical vibration to the upper vibrating body 4; and a horizontal excitation electromagnet 9 for applying horizontal vibration to the upper vibrating body 4 in the front-back direction (left-right direction in the diagram). The vertical vibrating leaf springs 5a and 5b are leaf springs used to cause the upper vibrating body 4 to vibrate in the vertical direction, and the horizontal vibrating leaf springs 6a and 6b are leaf springs used to cause the upper vibrating body 4 to vibrate in the front-back direction.

[0113] The trough 7 has a component transport path 10 that extends in a straight line along the front-to-back direction (the direction of component transport). For example... Figure 6 As shown, the component transport path 10 is a groove extending horizontally on the upper surface of the groove 7. The groove 7 is detachably fixed to the upper vibrating body 4 by bolts (not shown).

[0114] like Figure 2 As shown, the upper vibrator 4 is a slender rectangular component in the front-to-back direction when viewed from above. A groove mounting surface 11 is formed on the upper surface of the upper vibrator 4. The groove mounting surface 11 is an upward-facing plane with screw holes (not shown) for fixing the groove 7.

[0115] The upper vibrator 4 is formed as a frame with a plurality of rectangular weight-reducing openings 12 spaced apart vertically along the front-back direction. The upper vibrator 4 has: a pair of left and right side frame portions 13 extending in the front-back direction; a front frame portion 14 connecting the front ends of the left and right side frame portions 13 to each other; a rear frame portion 15 connecting the rear ends of the left and right side frame portions 13 to each other; a central frame portion 16 connecting the central portions of the left and right side frame portions 13 in the front-back direction to each other; a front reinforcing frame portion 17 connecting the left and right side frame portions 13 to each other between the central frame portion 16 and the front frame portion 14; and a rear reinforcing frame portion 18 connecting the left and right side frame portions 13 to each other between the central frame portion 16 and the rear frame portion 15.

[0116] like Figure 1 As shown, the base 1 is mounted on the ground component 19 via vibration damping components 2a and 2b disposed between the base 1 and the ground component. The vibration damping components 2a and 2b consist of a front vibration damping component 2a supporting the front end of the base 1 and a rear vibration damping component 2b supporting the rear end of the base 1. Each vibration damping component 2a and 2b is a component that elastically deforms in the vertical and horizontal directions and the front-back direction in response to vibration of the base 1 to prevent the vibration of the base 1 from being transmitted to the ground component 19. Vibration damping components 2a and 2b can be made of rubber in their elastically deformable portions. The upper end of each vibration damping component 2a and 2b is fixed to the lower surface of the base 1, and the lower end of each vibration damping component 2a and 2b is fixed to the upper surface of the ground component 19.

[0117] like Figure 2 As shown, when viewed from above, the base 1 is formed as a slender rectangle in the front-back direction (or left-right direction in the figure). Furthermore, when viewed from above, the base 1 and the upper vibrating body 4 are configured such that the center position of the base 1 in the front-back direction (the center of gravity of the base 1) coincides with the center position of the upper vibrating body 4 in the front-back direction (the center of gravity of the upper vibrating body 4).

[0118] like Figure 1 As shown, the intermediate vibrators 3a and 3b are composed of a front intermediate vibrator 3a and a rear intermediate vibrator 3b, which are arranged separately. The front intermediate vibrator 3a is positioned between the portion of the base 1 that is forward of the center in the front-rear direction and the ground component 19, while the rear intermediate vibrator 3b is positioned between the portion of the base 1 that is backward of the center in the front-rear direction and the ground component 19. The front intermediate vibrator 3a and the rear intermediate vibrator 3b are separate components arranged separately so that they can move up and down independently of each other. The front intermediate vibrator 3a and the rear intermediate vibrator 3b are each formed into a quadrangular prism extending in the left-right direction (the direction orthogonal to the plane of the paper in the figure).

[0119] The horizontal vibration leaf springs 6a and 6b are composed of a front horizontal vibration leaf spring 6a connecting the front intermediate vibrating body 3a and the upper vibrating body 4, and a rear horizontal vibration leaf spring 6b connecting the rear intermediate vibrating body 3b and the upper vibrating body 4. The front horizontal vibration leaf spring 6a and the rear horizontal vibration leaf spring 6b are respectively configured such that the thickness direction is in the front-to-back direction and the length direction is in the up-to-down direction.

[0120] like Figure 4 As shown, the front horizontal vibration leaf springs 6a are arranged in pairs, which are parallel to each other and spaced apart in the front-rear direction. The upper ends of the paired front horizontal vibration leaf springs 6a are fixed to the front spring fixing plate 20a by clamping each other from the front and back. In addition, the lower ends of the paired front horizontal vibration leaf springs 6a are fixed to the front middle vibration body 3a by clamping each other from the front and back.

[0121] Similarly, as Figure 5 As shown, the rear horizontal vibration leaf springs 6b are also arranged in pairs, which are parallel to each other and spaced apart in the front-to-back direction. The upper ends of the pair of rear horizontal vibration leaf springs 6b are fixed to the rear spring fixing plate 20b by clamping each other from the front and back. In addition, the lower ends of the pair of rear horizontal vibration leaf springs 6b are fixed to the rear intermediate vibration body 3b by clamping each other from the front and back.

[0122] like Figure 2 As shown, the front horizontal vibration leaf springs 6a are respectively provided on the left side (lower side in the figure) and the right side (upper side in the figure) of the upper vibrating body 4, and the front spring fixing plates 20a are also respectively provided on the left side and the right side of the upper vibrating body 4. The front spring fixing plates 20a are protrusions that extend to the left and right sides from the front of the center position of the upper vibrating body 4 in the front direction. The front reinforcing frame portion 17 is positioned at the same position in the front-rear direction as the pair of left and right front spring fixing plates 20a.

[0123] Similarly, the rear horizontal vibration leaf springs 6b are also respectively provided on the left and right sides of the upper vibrating body 4, and the rear spring fixing plates 20b are also respectively provided on the left and right sides of the upper vibrating body 4. The rear spring fixing plates 20b are protrusions that extend to the left and right sides from the rear of the center position in the front-rear direction of the upper vibrating body 4. The rear reinforcing frame portion 18 is positioned at the same position in the front-rear direction as the pair of left and right rear spring fixing plates 20b.

[0124] Viewed from above, the left and right front spring fixing plates 20a are respectively configured to protrude outwards from the left and right side surfaces of the base 1. Similarly, the left and right rear spring fixing plates 20b are also respectively configured to protrude outwards from the left and right side surfaces of the base 1. The four horizontal vibration leaf springs 6a and 6b—two on the left and two on the right, and two on the left and two on the left and two on the left and right, respectively—are arranged to surround the center of gravity of the upper vibrating body 4 from the front, rear, left, and right.

[0125] like Figure 3 As shown, the front intermediate vibrator 3a has a dimension longer than the left-right dimension of the base 1, so that when viewed from below, the left and right ends of the front intermediate vibrator 3a protrude outwards from the left and right side surfaces of the base 1. Similarly, the rear intermediate vibrator 3b also has a dimension longer than the left-right dimension of the base 1, so that when viewed from below, the left and right ends of the rear intermediate vibrator 3b protrude outwards from the left and right side surfaces of the base 1.

[0126] Here, as Figure 2 As shown, when viewed from above, the upper end of the front horizontal vibration spring 6a is fixed to the spring fixing plate 20a on the front side, which protrudes outward from the left and right side surfaces of the base 1, and as... Figure 3 As shown, when viewed from below, the lower end of the front horizontal vibrating leaf spring 6a is fixed to the outwardly protruding portions of the left and right side surfaces of the base platform 1 of the front intermediate vibrating body 3a, thereby, as Figure 1 As shown, the leaf spring 6a can be configured to prevent horizontal vibrations on the front side from extending in the vertical direction away from the base 1.

[0127] Similarly, as Figure 2 As shown, when viewed from above, the upper end of the leaf spring 6b, which is fixed to the rear spring fixing plate 20b, protrudes outward from the left and right side surfaces of the base 1, and as... Figure 3 As shown, when viewed from below, the lower end of the rear horizontal vibrating leaf spring 6b is fixed to the outward-protruding portion of the left and right side surfaces of the base 1 of the rear intermediate vibrating body 3b, thereby, as Figure 1 As shown, the leaf spring 6b can be configured to prevent horizontal vibrations on the rear side from extending in the vertical direction away from the base 1.

[0128] like Figure 1 As shown, the vertical vibration leaf springs 5a and 5b are composed of a vertical vibration leaf spring 5a connecting the front side of the intermediate vibrating body 3a to the front side of the base 1, and a vertical vibration leaf spring 5b connecting the rear side of the intermediate vibrating body 3b to the rear side of the base 1. The front vertical vibration leaf spring 5a and the rear vertical vibration leaf spring 5b are respectively configured such that the thickness direction is in the vertical direction and the length direction is in the rear direction.

[0129] like Figure 4 As shown, the front vertical vibration leaf springs 5a are arranged in pairs, which are parallel to each other at intervals in the vertical direction. The pair of front vertical vibration leaf springs 5a are assembled to clamp the front intermediate vibrating body 3a and the spring fixing block 21a fixed to the front of the base 1 from the top and bottom respectively at the position where they are separated in the horizontal direction.

[0130] Specifically, the two ends of the pair of front vertical vibration leaf springs 5a facing each other in the vertical direction are fixed to the lower surface of the base 1 in the front direction by clamping each other with the spring fixing block 21a set on the front side of the base 1 from above and below. In addition, the central part of the pair of front vertical vibration leaf springs 5a is fixed to the front intermediate vibration body 3a by clamping each other with the front intermediate vibration body 3a from above and below.

[0131] Here, on the lower surface of the base 1, a groove 22 extending in the left-right direction (orthogonal to the plane of the paper in the figure) is formed in the portion opposite to the front intermediate vibrating body 3a. The width of the groove 22 is greater than the width of the front intermediate vibrating body 3a. Among the pair of front vertical vibrating leaf springs 5a facing each other in the vertical direction, the upper front vertical vibrating leaf spring 5a is mounted in the groove 22, and both ends of the leaf spring are fixed to the lower surface of the base 1. In addition, a pair of front spring fixing blocks 21a are fixed to the lower surface of both ends of the upper front vertical vibrating leaf spring 5a, and the front intermediate vibrating body 3a is fixed to the lower surface of the center of the upper front vertical vibrating leaf spring 5a. Furthermore, in the pair of vertically opposed front-side vertical vibration leaf springs 5a, the two ends of the lower front-side vertical vibration leaf spring 5a are fixed to the lower surfaces of a pair of front-side spring fixing blocks 21a, and the central part of the lower front-side vertical vibration leaf spring 5a is fixed to the lower surface of the front-side intermediate vibration body 3a. The vertical thickness of the front-side spring fixing block 21a is the same as the vertical thickness of the front-side intermediate vibration body 3a.

[0132] Similarly, as Figure 5 As shown, the rear vertical vibration leaf springs 5b are also arranged in pairs, which are parallel to each other at intervals in the vertical direction. The pair of rear vertical vibration leaf springs 5b arranged in the vertical direction are assembled to clamp the rear intermediate vibrating body 3b and the spring fixing block 21b fixed to the rear side of the base 1 from the top and bottom respectively at the position where they are separated in the horizontal direction.

[0133] Specifically, the two ends of the pair of rear vertical vibrating leaf springs 5b, which are opposed in the vertical direction, are fixed to the lower surface of the base 1 by clamping each other with a spring fixing block 21b disposed on the rear side of the base 1 from above and below. In addition, the central portions of the pair of rear vertical vibrating leaf springs 5b are fixed to the rear intermediate vibrating body 3b by clamping each other with the rear intermediate vibrating body 3b from above and below. The structure of the rear vertical vibrating leaf springs 5b and its surroundings is the same as that of the front vertical vibrating leaf spring 5a, so the corresponding parts are labeled with the same reference numerals and the description is omitted.

[0134] like Figure 3 As shown, the front vertical vibration leaf springs 5a are respectively located on the left (upper side in the figure) and right (lower side in the figure) sides of the base 1. Similarly, the rear vertical vibration leaf springs 5b are also respectively located on the left and right sides of the base 1. The four vertical vibration leaf springs 5a and 5b, located on the left and right sides respectively, are arranged to surround the center of gravity of the base 1 from the front, back, left, and right.

[0135] like Figure 1 As shown, the vertical excitation electromagnet 8 is fixed at the center of the base 1 in the front-rear direction. The vertical excitation electromagnet 8 is an AC electromagnet (made by winding a coil around an iron core composed of laminated electromagnetic steel plates). Additionally, a vertical excitation iron core 23 is fixedly mounted on the lower surface of the upper vibrating body 4, positioned vertically opposite the vertical excitation electromagnet 8 with a gap between it and the vertical excitation electromagnet 8. The vertical excitation iron core 23 is positioned at the center of the upper vibrating body 4 in the front-rear direction. When an AC voltage of a predetermined frequency is applied to the vertical excitation electromagnet 8, an electromagnetic attraction force intermittently acts between the vertical excitation electromagnet 8 and the vertical excitation iron core 23, thereby applying a vertical excitation force to the upper vibrating body 4 in the up-down direction.

[0136] A horizontal excitation electromagnet 9 is fixed to the base 1 at a position offset rearward (to the right in the figure) from the center position in the front-back direction. The horizontal excitation electromagnet 9 is an AC electromagnet. Additionally, a horizontal excitation core 24 is fixedly installed on the lower surface of the upper vibrating body 4, positioned opposite the horizontal excitation electromagnet 9 in the front-back direction with a gap between it and the core 24. The horizontal excitation core 24 is positioned at a position offset rearward (to the right in the figure) from the center position in the front-back direction of the upper vibrating body 4. When an AC voltage of a predetermined frequency is applied to the horizontal excitation electromagnet 9, an intermittent electromagnetic attraction force acts between the horizontal excitation electromagnet 9 and the horizontal excitation core 24, thereby applying a horizontal excitation force in the front-back direction to the upper vibrating body 4.

[0137] On the base 1, a base center of gravity adjustment protrusion 25 with a mass corresponding to the horizontal excitation electromagnet 9 is provided at a position offset forward from the center position in the front-rear direction. By providing this base center of gravity adjustment protrusion 25, the forward offset of the base 1's center of gravity caused by the horizontal excitation electromagnet 9 being positioned forward from the center position in the front-rear direction is eliminated, and the center of gravity of the base 1 is returned to the center position in the front-rear direction.

[0138] Furthermore, an upper center of gravity adjustment protrusion 26, having a mass corresponding to the horizontal excitation core 24, is also provided on the upper vibrating body 4 at a position offset forward from the center position in the front-rear direction. By providing this upper center of gravity adjustment protrusion 26, the forward shift of the center of gravity of the upper vibrating body 4 caused by the horizontal excitation core 24 being positioned offset forward from the center position in the front-rear direction is eliminated, and the center of gravity of the upper vibrating body 4 is returned to the center position in the front-rear direction.

[0139] A front-side counterweight fixing rail 27a extending in the front-rear direction is provided at the front end of the base 1. A front-side counterweight 28a is fixed to the front-side counterweight fixing rail 27a in a manner that allows adjustment of the counterweight's fixing position in the front-rear direction. Similarly, a rear-side counterweight fixing rail 27b extending in the front-rear direction is provided at the rear end of the base 1. A rear-side counterweight fixing rail 27b is fixed to the rear-side counterweight 28b in a manner that allows adjustment of the counterweight's fixing position in the front-rear direction.

[0140] like Figure 4 , Figure 7 As shown, the front counterweight 28a is formed with a pair of opposing plates 29 that clamp the front counterweight fixing rail 27a in the middle and are oriented left and right, and a connecting plate 30 with the upper ends of the pair of opposing plates 29 connected to each other in a U-shape. A threaded hole 31 is formed in each pair of opposing plates 29, extending in the left-right direction. By tightening the external threaded member 32 inserted into the threaded hole 31, the front end of the external threaded member 32 is pressed against the front counterweight fixing rail 27a, thereby fixing the front counterweight 28a to the front counterweight fixing rail 27a. The rear counterweight 28b is also constructed in the same way as the front counterweight 28a.

[0141] like Figure 4As shown, a vertical displacement sensor 33 for detecting the vertical displacement of the upper vibrating body 4 relative to the base 1, and a horizontal displacement sensor 34 for detecting the vertical displacement of the upper vibrating body 4 relative to the base 1 are installed at the center of the base 1 in the front-rear direction. A vertical displacement detection stop 35 is fixedly installed on the lower surface of the upper vibrating body 4, facing the vertical displacement sensor 33 in the front-rear direction. The vertical displacement sensor 33 can output a signal that varies according to the distance between its face and the opposing face of the vertical displacement detection stop 35, and detect the vertical displacement of the vertical displacement detection stop 35 based on this output signal. Furthermore, a horizontal displacement detection stop 36 is fixedly installed on the lower surface of the upper vibrating body 4, facing the horizontal displacement sensor 34 in the front-rear direction. The horizontal displacement sensor 34 can output a signal that varies according to the distance between its face and the opposing face of the horizontal displacement detection stop 36, and detect the front-rear displacement of the horizontal displacement detection stop 36 based on this output signal.

[0142] like Figure 1 , Figure 2 As shown by the double-dotted line, side plates 37 for mass adjustment can be detachably installed on the side surfaces of the left and right sides of the base 1.

[0143] The vibrating component conveying device controls the voltage applied to the vertical excitation electromagnet 8 and the horizontal excitation electromagnet 9 based on the horizontal displacement of the upper vibrating body 4 in the front-back direction detected by the horizontal displacement sensor 34 and the vertical displacement of the upper vibrating body 4 in the up-down direction detected by the vertical displacement sensor 33. This causes the groove 7 to produce elliptical vibration (each point of the groove 7 moves back and forth in a manner that traces an elliptical trajectory with a major axis inclined relative to the horizontal). Through this elliptical vibration, the component on the groove 7 moves from the rear to the front.

[0144] Here, when the groove 7 is made to vibrate elliptically, a pitching motion (a oscillating motion in a back-and-forth tilting manner) may occur in the groove 7 and the upper vibrating body 4 relative to the horizontal direction. This pitching motion of the groove 7 and the upper vibrating body 4 is a major issue in making the groove 7 vibrate as desired. This pitching motion will be explained below.

[0145] When on Figure 1 When the horizontal excitation electromagnet 9 shown is energized, the horizontal excitation core 24 is attracted by the horizontal excitation electromagnet 9, as... Figure 8 As shown, the upper vibrating body 4 moves horizontally backward (to the right in the figure), and the base 1 moves horizontally forward (to the left in the figure). Here, the ratio of the moving distance of the upper vibrating body 4 to the moving distance of the base 1 is the ratio of the reciprocal of the total mass of the groove 7 and the upper vibrating body 4 to the reciprocal of the total mass of the base 1 and the intermediate vibrating bodies 3a and 3b.

[0146] Furthermore, at this time, a rotational force is generated in the upper vibrating body 4 and the base 1 around the center of gravity of the entire device, causing the upper vibrating body 4 and the base 1 to swing in opposite directions. Specifically, as Figure 8 As shown by the arc arrow, the upper vibrator 4 swings in such a way that the front part of the upper vibrator 4 moves upward and the rear part of the upper vibrator 4 moves downward, while the base 1 swings in such a way that the front part of the base 1 moves downward and the rear part of the base 1 moves upward.

[0147] If Figure 1 When the energization of the horizontal excitation electromagnet 9 shown is cut off, the electromagnetic attraction generated by the horizontal excitation electromagnet 9 disappears. Due to the elastic restoring force of the horizontal vibration leaf springs 6a and 6b, the upper vibrating body 4 and the base 1 move horizontally in the opposite direction to when the horizontal excitation electromagnet 9 is energized, and swing in the opposite direction to when the horizontal excitation electromagnet 9 is energized.

[0148] By repeating the above actions, the upper vibrating body 4 and the base 1 perform pitching motions that are opposite to each other.

[0149] Here, if Figure 8 If the fixed position of the weight 28a on the front weight fixing track 27a is moved forward (to the left in the figure), and the fixed position of the weight 28b on the rear weight fixing track 27b is moved backward (to the right in the figure), then the inertial moment of the base 1 about its center of gravity increases, and the amplitude of the pitch motion of the base 1 decreases. Conversely, if the fixed position of the weight 28a on the front weight fixing track 27a is moved backward (to the right in the figure), and the fixed position of the weight 28b on the rear weight fixing track 27b is moved forward (to the left in the figure), then the inertial moment of the base 1 about its center of gravity decreases, and the amplitude of the pitch motion of the base 1 increases. Furthermore, the pitch motion of the upper vibrating body 4 as observed from the ground is a combination of the pitch motion of the base 1 as observed from the ground and the relative pitch motion of the upper vibrating body 4 relative to the base 1. Therefore, by adjusting the inertial torque of the base 1, the amplitude of the pitch motion of the base 1 can be made close to the amplitude of the relative pitch motion of the upper vibrating body 4, thus suppressing the pitch motion of the upper vibrating body 4 (i.e., the pitch motion of the groove 7).

[0150] And, using Figure 9 The simplified model shown illustrates the method for suppressing pitch motion.

[0151] exist Figure 9 In the middle, the upper rigid body 40 is equivalent to Figure 1 The upper vibrating body 4 and the middle vibrating bodies 3a and 3b are shown, and the lower rigid body 41 is equivalent to Figure 1The base 1 is shown. The intermediate vibrating bodies 3a and 3b are connected to the upper vibrating body 4 via horizontal vibrating leaf springs 6a and 6b. However, the horizontal vibrating leaf springs 6a and 6b do not deform in the vertical direction. Therefore, the intermediate vibrating bodies 3a and 3b are regarded as rigid bodies that are integral with the upper vibrating body 4.

[0152] Figure 10 , Figure 11 A simplified model is shown where the amplitude of the pitch motion of the upper rigid body 40 relative to the lower rigid body 41 is smaller than the amplitude of the pitch motion of the lower rigid body 41. Figure 11 The dashed line represents Figure 10 The vertical displacement of the front end portion 42 of the upper rigid body 40 relative to the front end portion 43 of the lower rigid body 41. Figure 11 The dotted line represents Figure 10 The absolute displacement (displacement observed from the ground) of the front end 43 of the lower rigid body 41 shown. Figure 11 The solid line represents Figure 10 The absolute displacement in the vertical direction of the front end portion 42 of the upper rigid body 40 shown.

[0153] like Figure 11 As shown, the relative vertical displacement (dashed line) of the front end 42 of the upper rigid body 40 relative to the front end 43 of the lower rigid body 41 is out of phase with the absolute vertical displacement (dotted line) of the front end 43 of the lower rigid body 41. The amplitude of the relative vertical displacement (dashed line) of the front end 42 of the upper rigid body 40 relative to the front end 43 of the lower rigid body 41 is smaller than the amplitude of the absolute vertical displacement (dotted line) of the front end 43 of the lower rigid body 41.

[0154] In this case, such as Figure 12 As shown, by positioning the front weight 28a and the rear weight 28b close to the center of gravity of the base 1, the fixed position of the front weight 28a is moved rearward, and the fixed position of the rear weight 28b is moved forward, reducing the inertial moment of the lower rigid body 41 and increasing the amplitude of the pitch motion of the lower rigid body 41. Thus, as... Figure 13 As shown, the pitch motion amplitude of the lower rigid body 41 can be made close to the pitch motion amplitude of the upper rigid body 40 relative to the lower rigid body 41, thereby suppressing the pitch motion of the upper rigid body 40.

[0155] Figure 14 , Figure 15 A simplified model is shown where the upper rigid body 40 is fitted with a slot 7, and the amplitude of the pitch motion of the upper rigid body 40 relative to the lower rigid body 41 is greater than the amplitude of the pitch motion of the lower rigid body 41.

[0156] like Figure 15As shown, the relative vertical displacement (dashed line) of the front end 42 of the upper rigid body 40 relative to the front end 43 of the lower rigid body 41 is out of phase with the absolute vertical displacement (dotted line) of the front end 43 of the lower rigid body 41. The amplitude of the relative vertical displacement (dashed line) of the front end 42 of the upper rigid body 40 relative to the front end 43 of the lower rigid body 41 is greater than the amplitude of the absolute vertical displacement (dotted line) of the front end 43 of the lower rigid body 41.

[0157] In this case, such as Figure 16 As shown, by moving the positions of the front weight 28a and the rear weight 28b away from the center of gravity of the base 1, the fixed position of the front weight 28a is moved forward, and the fixed position of the rear weight 28b is moved backward, increasing the inertial moment of the lower rigid body 41 and decreasing the amplitude of the pitch motion of the lower rigid body 41. Thus, as... Figure 17 As shown, the pitch motion amplitude of the lower rigid body 41 can be made close to the pitch motion amplitude of the upper rigid body 40 relative to the lower rigid body 41, thereby suppressing the pitch motion of the upper rigid body 40.

[0158] like Figure 1 As shown, in this vibrating component conveying device, the springs connecting the upper vibrating body 4 and the intermediate vibrating bodies 3a and 3b are horizontal vibration leaf springs 6a and 6b, and the springs connecting the intermediate vibrating bodies 3a and 3b and the base 1 are vertical vibration leaf springs 5a and 5b. Therefore, when the upper vibrating body 4 is vibrated using the horizontal excitation electromagnet 9, the groove 7, the upper vibrating body 4, the intermediate vibrating bodies 3a and 3b, and the base 1 vibrate together in the front-back direction, while the base 1 and the intermediate vibrating bodies 3a and 3b move together in the front-back direction with opposite phases. Here, the ratio of the amplitude of the upper vibrating body 4 in the front-back direction to the amplitude of the base 1 in the front-back direction is the ratio of the reciprocal of the total mass of the groove 7 and the upper vibrating body 4 to the reciprocal of the total mass of the base 1 and the intermediate vibrating bodies 3a and 3b. Therefore, compared with the interchange of horizontal vibration leaf springs 6a and 6b and vertical vibration leaf springs 5a and 5b (i.e., the structure in which the upper vibrating body and the middle vibrating body are connected by a vertical vibration leaf spring, as in Japanese Patent Application Publication No. 2013-95597 (Patent Document 1), the amplitude of the upper vibrating body 4 in the front-back direction can be increased, and the component can be transported at a high transport speed.

[0159] In addition, such as Figure 1As shown, in this vibratory component conveying device, an intermediate vibrating bodies 3a and 3b are arranged on the lower side of the base 1, and horizontal vibrating leaf springs 6a and 6b are arranged to extend vertically away from the base 1. The upper ends of the horizontal vibrating leaf springs 6a and 6b are fixed to the upper vibrating body 4, and the lower ends of the horizontal vibrating leaf springs 6a and 6b are fixed to the intermediate vibrating bodies 3a and 3b. Therefore, the lengths of the horizontal vibrating leaf springs 6a and 6b are relatively long. Thus, the amplitude of the upper vibrating body 4 in the front-to-back direction can be set to be large, enabling the conveying of components at a high conveying speed.

[0160] In addition, such as Figure 1 As shown, in this vibrating component conveying device, the intermediate vibrating bodies 3a and 3b are composed of a front intermediate vibrating body 3a and a rear intermediate vibrating body 3b arranged separately. The front intermediate vibrating body 3a and the rear intermediate vibrating body 3b can move independently of each other in the vertical direction relative to the base 1, thus suppressing the pitch movement of the base 1 by limiting the pitch movement of the intermediate vibrating bodies 3a and 3b. Therefore, the pitch movement of the upper vibrating body 4 can be effectively counteracted by the pitch movement of the base 1.

[0161] In addition, such as Figure 4 As shown, in this vibrating component conveying device, the front middle vibrating body 3a and the upper vibrating body 4 are connected by a front horizontal vibrating leaf spring 6a arranged in pairs at intervals in the front-back direction. Therefore, even if the front horizontal vibrating leaf spring 6a deforms in the front-back direction, the tilt of the upper vibrating body 4 relative to the front middle vibrating body 3a is restricted, and the upper vibrating body 4 moves in the front-back direction while remaining parallel to the front middle vibrating body 3a.

[0162] That is, such as Figure 18 As shown, assuming a structure in which the intermediate vibrating body 3a on the front side is connected to the upper vibrating body 4 by a single front-side horizontal vibration spring 6a, as... Figure 19 As shown, if the front horizontal vibration leaf spring 6a deforms in the front-back direction, the upper vibrating body 4 will tilt relative to the front middle vibrating body 3a due to the buckling of the front horizontal vibration leaf spring 6a. This may cause the spring fixing plate 20a on the front side of the upper vibrating body 4 to be unable to withstand the torsional stress and be damaged, or the vibration of the upper vibrating body 4 in the front-back direction to become unstable.

[0163] In this regard, such as Figure 20 As shown, when the front middle vibrating body 3a is connected to the upper vibrating body 4 by a pair of front horizontal vibrating leaf springs 6a arranged at intervals in the front-rear direction, as Figure 21As shown, even if the front horizontal vibration leaf spring 6a deforms in the front-back direction, the tilt of the upper vibrating body 4 relative to the front middle vibrating body 3a is restricted, and the upper vibrating body 4 moves in the front-back direction while maintaining a state parallel to the front middle vibrating body 3a.

[0164] Similarly, as Figure 5 As shown, the rear-side intermediate vibrating body 3b and the upper vibrating body 4 are connected by a pair of rear-side horizontal vibrating leaf springs 6b arranged at intervals in the front-back direction. Therefore, even when the rear-side horizontal vibrating leaf springs 6b deform in the front-back direction, the tilt of the upper vibrating body 4 relative to the rear-side intermediate vibrating body 3b is limited, and the upper vibrating body 4 moves in the front-back direction while remaining parallel to the rear-side intermediate vibrating body 3b. Therefore, this vibrating component conveying device can obtain stable front-back vibration of the upper vibrating body 4.

[0165] In addition, such as Figure 2 As shown, in this vibrating component conveying device, when viewed from above, the four horizontal vibrating leaf springs 6a on the front side and 6b on the rear side, i.e., the front, back, left, and right sides, form a shape that surrounds the center of gravity of the upper vibrating body 4 and the center of gravity of the base 1 from the front, back, left, and right sides, which can make the horizontal vibration of the upper vibrating body 4 and the groove 7 particularly stable.

[0166] In addition, such as Figure 2 As shown, in this vibrating component conveying device, the horizontal vibration leaf springs 6a and 6b are used in a total of eight locations. Therefore, the overall spring constant of the horizontal vibration leaf springs 6a and 6b can be increased, thereby improving the conveying speed of the component.

[0167] In addition, such as Figure 22 As shown, in this vibrating component conveying device, a leaf spring formed by overlapping multiple leaf springs can be used as the front horizontal vibrating leaf spring 6a. Similarly, a leaf spring formed by overlapping multiple leaf springs can also be used for the rear horizontal vibrating leaf spring 6b. In this way, compared with using a single leaf spring having the same spring constant as the overlapping multiple leaf springs, a thinner leaf spring can be used, thus preventing leaf spring breakage. Furthermore, by setting a larger spring constant for both the front horizontal vibrating leaf spring 6a and the rear horizontal vibrating leaf spring 6b, the conveying speed of the component can be increased.

[0168] In addition, such as Figure 4As shown, in this vibrating component conveying device, the front intermediate vibrating body 3a and the base 1 are connected by a pair of front vertical vibrating leaf springs 5a arranged in a way that are spaced apart in the vertical direction. Therefore, even when a rotational force is applied from the front horizontal vibrating leaf spring 6a to the front intermediate vibrating body 3a, the tilt of the front intermediate vibrating body 3a relative to the base 1 is limited, and the tilting of the front horizontal vibrating leaf spring 6a can be prevented.

[0169] That is, such as Figure 23 As shown, assuming a structure in which the front middle vibrating body 3a is connected to the base 1 by a single front vertical vibrating leaf spring 5a, if a rotational force is applied from the front horizontal vibrating leaf spring 6a to the front middle vibrating body 3a, the deformation of the front vertical vibrating leaf spring 5a will cause the front middle vibrating body 3a to tilt relative to the base 1, resulting in the tilting of the front horizontal vibrating leaf spring 6a, which may make the front-back vibration and the vertical vibration of the upper vibrating body 4 unstable.

[0170] In this regard, such as Figure 24 As shown, if the front middle vibrating body 3a is connected to the base 1 by a pair of front vertical vibrating leaf springs 5a arranged at intervals in the vertical direction, even when a rotational force is applied from the front horizontal vibrating leaf spring 6a to the front middle vibrating body 3a, the tilt of the front middle vibrating body 3a relative to the base 1 is limited, and the tilting of the front horizontal vibrating leaf spring 6a can be prevented.

[0171] Similarly, as Figure 5 As shown, the rear intermediate vibrating body 3b and the base 1 are connected by a pair of rear vertical vibrating leaf springs 5b arranged at intervals in the vertical direction. Therefore, even when a rotational force is applied to the rear intermediate vibrating body 3b from the rear horizontal vibrating leaf spring 6b, the tilting of the rear intermediate vibrating body 3b relative to the base 1 is limited, preventing the rear horizontal vibrating leaf spring 6b from tipping over. Thus, this vibrating component conveying device can obtain stable front-to-back vibration and vertical vibration of the upper vibrating body 4.

[0172] In addition, such as Figure 1As shown, in this vibrating component conveying device, by providing a base center-of-gravity adjustment protrusion 25 with a mass corresponding to the horizontal excitation electromagnet 9, the center of gravity of the base 1 is positioned at the center of the front-to-back direction of the base 1. By providing an upper center-of-gravity adjustment protrusion 26 with a mass corresponding to the horizontal excitation core 24, the center of gravity of the upper vibrating body 4 is positioned at the center of the front-to-back direction of the upper vibrating body 4. Therefore, the positions of the center of gravity of the groove 7 and the upper vibrating body 4 are arranged vertically without any front-to-back offset from the positions of the intermediate vibrating bodies 3a, 3b and the center of gravity of the base 1, and the vertical displacement accompanying the arc-shaped reciprocating motion in the front-to-back direction can be suppressed to a small extent.

[0173] based on Figure 25 The simplified model shown will be used for illustration. When... Figure 1 When the horizontal excitation electromagnet 9 is energized, the slot 7 and the upper vibrating body 4 vibrate horizontally as a whole, while the intermediate vibrating bodies 3a and 3b and the base 1 vibrate horizontally as a whole with a phase opposite to this horizontal vibration. Therefore, in Figure 25 In the simplified model shown, the groove 7 and the upper vibrator 4 are the upper component 50, and the middle vibrators 3a and 3b and the base 1 are the lower component 51.

[0174] In this simplified model, the centers of gravity of the upper component 50, the lower component 51, and the overall center of gravity G of the device are vertically aligned without any shift in the front-back direction (or left-right direction in the figure). Furthermore, the centers of gravity of the upper component 50 and the lower component 51 reciprocate in an arc-shaped motion with amplitudes x1 and x2, centered on the overall center of gravity G of the device. During this motion, the centers of gravity of the upper component 50 and the lower component 51 undergo vertical displacements z1 and z2, respectively, accompanying the arc-shaped reciprocating motion.

[0175] Here, as Figure 26 As shown, if the center of gravity of the upper component 50, the center of gravity of the lower component 51, and the center of gravity G of the entire device shift in the front-back direction (left-right direction in the figure), then the vertical displacements z1' and z2' of the center of gravity of the upper component 50 and the center of gravity of the lower component 51, accompanied by circular reciprocating motions with amplitudes x1 and x2, will be the same as those of the lower component 51. Figure 25 The vertical displacements z1 and z2 shown are larger. That is to say, the greater the offset of the center of gravity of the upper component 50, the center of gravity of the lower component 51, and the center of gravity G of the whole device in the front-back direction (left-right direction in the figure), the greater the vertical displacement of the center of gravity of the upper component 50 and the center of gravity of the lower component 51 in the arc-shaped reciprocating motion centered on the center of gravity G of the whole device. As a result, the whole device is prone to large pitching motion.

[0176] Regarding this point, in this embodiment, as follows: Figure 1As shown, by setting the base center of gravity adjustment protrusion 25 and the upper center of gravity adjustment protrusion 26, the positions of the center of gravity of the groove 7 and the upper vibrator 4, and the positions of the center of gravity of the intermediate vibrators 3a, 3b and the base 1 are arranged in the vertical direction without any front-to-back offset. Therefore, the vertical displacement that accompanies the arc-shaped reciprocating motion in the front-to-back direction can be effectively suppressed, and the pitch motion of the device as a whole can be suppressed to a small extent.

[0177] In addition, in this vibrating component conveying device, by moving Figure 1 By fixing the front weight 28a and the rear weight 28b as shown, the inertial torque of the base 1 can be adjusted without changing its mass, thus adjusting the amplitude of the pitch motion of the base 1 as observed from the ground. Therefore, without increasing the overall mass of the device, the inertial torque of the base 1, which is used to counteract the pitch motion of the upper vibrating body 4 through the pitch motion of the base 1, can be adjusted without causing a decrease in the inherent vibration frequency of the entire device or a decrease in the conveying speed of the components due to the adjustment of the inertial torque of the base 1.

[0178] Furthermore, in this vibrating component conveying device, it is possible to change... Figure 1 The mass of the side plate 37, indicated by the dashed line, is used to change the ratio of the total mass of the groove 7 and the upper vibrator 4 to the total mass of the base 1 (including the side plate 37 for mass adjustment) and the intermediate vibrators 3a and 3b. As a result, the ratio of the amplitude of the upper vibrator 4 in the front-to-back direction to the amplitude of the base 1 in the front-to-back direction can be changed, thereby adjusting the conveying speed of the component.

[0179] In addition, such as Figure 4 As shown, in this vibrating component conveying device, a vertical displacement sensor 33 and a horizontal displacement sensor 34 are provided in the central part of the base 1 in the front-rear direction. Even when the upper vibrating body 4 is pitching relative to the base 1, the relative position of the upper vibrating body 4 relative to the base 1 in the central part of the base 1 in the front-rear direction is not easily affected. Therefore, the displacement of the upper vibrating body 4 relative to the base 1 can be detected with high precision using the vertical displacement sensor 33 and the horizontal displacement sensor 34.

[0180] The embodiments disclosed herein should be considered illustrative in all respects and not intended to limit the invention. The scope of the invention is not limited by the foregoing description but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0181] Explanation of reference numerals in the attached figures

[0182] 1…base; 3a…front intermediate vibrator; 3b…rear intermediate vibrator; 4…upper vibrator; 5a…front vertical vibrating leaf spring; 5b…rear vertical vibrating leaf spring; 6a…front horizontal vibrating leaf spring; 6b…rear horizontal vibrating leaf spring; 7…slot; 8…vertical excitation electromagnet; 9…horizontal excitation electromagnet; 10…component transport path; 20a…front spring retaining plate; 20b…rear spring retaining plate ; 21a…front spring fixing block; 21b…rear spring fixing block; 23…vertical excitation core; 24…horizontal excitation core; 25…protrusion for adjusting the center of gravity of the base; 26…protrusion for adjusting the center of gravity of the upper part; 27a…rail for fixing the front counterweight; 27b…rail for fixing the rear counterweight; 28a…front counterweight; 28b…rear counterweight; 33…vertical displacement sensor; 34…horizontal displacement sensor; 37…side plate.

Claims

1. A vibratory component conveying device, characterized in that, have: abutment(1); The intermediate vibrating bodies (3a, 3b) are connected to the base (1) via vertical vibration leaf springs (5a, 5b); The upper vibrating body (4) is connected to the middle vibrating body (3a, 3b) via horizontal vibration leaf springs (6a, 6b); The groove (7) is installed on the upper vibrating body (4) and has a component conveying path (10) that extends in a straight line in the front-back direction. A vertically vibrating electromagnet (8) applies vertical vibration to the upper vibrating body (4); and A horizontal excitation electromagnet (9) applies back-and-forth vibration to the upper vibrating body (4). The intermediate vibrating bodies (3a, 3b) are disposed on the lower side of the base (1). The horizontal vibration leaf springs (6a, 6b) are configured to extend vertically, avoiding the base (1). The upper ends of the horizontal vibration leaf springs (6a, 6b) are fixed to the upper vibrating body (4), and the lower ends of the horizontal vibration leaf springs (6a, 6b) are fixed to the middle vibrating body (3a, 3b).

2. The vibrating component conveying device according to claim 1, characterized in that, The intermediate vibrating bodies (3a, 3b) are composed of a front intermediate vibrating body (3a) and a rear intermediate vibrating body (3b) arranged separately. The horizontal vibration leaf springs (6a, 6b) are composed of a horizontal vibration leaf spring (6a) connecting the front side of the intermediate vibrating body (3a) and the front side of the upper vibrating body (4), and a horizontal vibration leaf spring (6b) connecting the rear side of the intermediate vibrating body (3b) and the rear side of the upper vibrating body (4). The vertical vibration leaf springs (5a, 5b) are composed of a vertical vibration leaf spring (5a) connecting the front side of the intermediate vibrating body (3a) to the front side of the base (1) and a vertical vibration leaf spring (5b) connecting the rear side of the intermediate vibrating body (3b) to the rear side of the base (1).

3. The vibrating component conveying device according to claim 2, characterized in that, The front-side horizontal vibration leaf springs (6a) are arranged in pairs, spaced apart in the front-rear direction. The upper ends of the pair of front-side horizontal vibration leaf springs (6a) clamp each other from front to back on the spring fixing plate (20a) disposed on the front side of the upper vibrating body (4), and the lower ends of the pair of front-side horizontal vibration leaf springs (6a) clamp each other from front to back on the front side on the middle vibrating body (3a). The rear-side horizontal vibration leaf springs (6b) are arranged in pairs, spaced apart in the front-rear direction. The upper ends of the pair of rear-side horizontal vibration leaf springs (6b) clamp each other from the front and back to the spring fixing plate (20b) disposed on the rear side of the upper vibration body (4), and the lower ends of the pair of rear-side horizontal vibration leaf springs (6b) clamp each other from the front and back to the rear side to the middle vibration body (3b).

4. The vibratory component conveying device according to claim 3, characterized in that, The paired front-side horizontal vibrating leaf springs (6a) are respectively disposed on the left and right sides of the upper vibrating body (4). The front spring fixing plate (20a) is a protrusion that extends from the upper vibrating body (4) to the left and right sides respectively. The paired rear-side horizontal vibrating leaf springs (6b) are respectively disposed on the left and right sides of the upper vibrating body (4). The rear spring retainer (20b) is a protrusion that extends from the upper vibrating body (4) to the left and right sides respectively.

5. The vibratory component conveying device according to claim 3 or 4, characterized in that, The horizontal vibration leaf spring (6a) constituting the pair of front-side horizontal vibration leaf springs (6a) is formed by overlapping multiple leaf springs, with one front-side horizontal vibration leaf spring (6a) and the other front-side horizontal vibration leaf spring (6a) being formed by overlapping multiple leaf springs. The horizontal vibration leaf spring (6b) constituting the pair of rear-side horizontal vibration leaf springs (6b) is formed by overlapping multiple leaf springs.

6. The vibratory component conveying device according to any one of claims 2 to 5, characterized in that, The front vertical vibration leaf springs (5a) are arranged in pairs, spaced apart in the vertical direction. The paired front vertical vibration leaf springs (5a) clamp the front middle vibration body (3a) and the spring fixing block (21a) disposed on the front side of the base (1) at positions separated in the horizontal direction from above and below. The rear vertical vibration leaf springs (5b) are arranged in pairs, spaced apart in the vertical direction. The paired rear vertical vibration leaf springs (5b) clamp the rear intermediate vibrating body (3b) and the spring fixing block (21b) disposed on the rear side of the base (1) respectively from the top and bottom directions at the position where they are separated in the horizontal direction.

7. The vibratory component conveying device according to any one of claims 1 to 6, characterized in that, The vertical excitation electromagnet (8) is positioned at the center of the base (1) in the front-rear direction. The horizontal excitation electromagnet (9) is positioned on the base (1) at a position offset to one side from the center position in the front-rear direction. On the base (1), a base center adjustment protrusion (25) with a mass corresponding to the horizontal excitation electromagnet (9) is provided at a position offset from the center position in the front-rear direction to the other side in the front-rear direction.

8. The vibratory component conveying device according to any one of claims 1 to 7, characterized in that, The upper vibrating body (4) is provided with a vertical excitation core (23) that is opposed to the vertical excitation electromagnet (8) in the vertical direction with a gap, and a horizontal excitation core (24) that is opposed to the horizontal excitation electromagnet (9) in the front-back direction with a gap. The vertical excitation core (23) is positioned at the center of the upper vibrating body (4) in the front-rear direction. The horizontal excitation core (24) is positioned on one side of the upper vibrating body (4) from the center in the front-rear direction. The upper vibrating body (4) has an upper center of gravity adjustment protrusion (26) with a mass corresponding to the horizontal excitation core (24) at a position offset from the center position in the front-rear direction to the other side in the front-rear direction.

9. The vibratory component conveying device according to any one of claims 1 to 8, characterized in that, A front-side counterweight fixing rail (27a) extending in the front-back direction is provided at the front end of the base (1). The front side weight (28a) is fixed to the front side weight on the weight fixing rail (27a) in such a way that the fixing position of the weight can be adjusted in the front-back direction. A rear-side counterweight fixing rail (27b) extending in the front-rear direction is provided at the rear end of the base (1). The rear side is fixed to the counterweight fixing rail (27b) in such a way that the fixing position of the counterweight can be adjusted in the front-back direction.

10. The vibratory component conveying device according to any one of claims 1 to 9, characterized in that, Side plates (37) for mass adjustment are detachably installed on the side surfaces of the left and right sides of the base (1).

11. The vibratory component conveying device according to any one of claims 1 to 10, characterized in that, A vertical displacement sensor (33) for detecting the vertical displacement of the upper vibrating body (4) relative to the base (1) and a horizontal displacement sensor (34) for detecting the vertical displacement of the upper vibrating body (4) relative to the base (1) are provided in the central part of the base (1) in the front-back direction.

Images