A feeding device for speaker cone

Abstract

The present invention discloses a feeding device for speaker cones, comprising a storage mechanism, a picking mechanism and a dividing mechanism; wherein: the storage mechanism comprises at least one storage unit for storing a plurality of cones stacked up and down; the picking mechanism comprises a picking manipulator for taking out the cones in the storage unit; the dividing mechanism comprises at least one material receiving tray for holding the cones taken out by the picking manipulator, the dividing mechanism has a material-splitting state, when the dividing mechanism is in the material-splitting state, the number of cones on at least one of the material receiving trays is greater than one, the material receiving tray has a negative pressure for absorbing the lower layer of cones; the dividing mechanism also comprises at least one material-splitting component for removing the cones on the material receiving tray. The feeding device for speaker cones can realize the separate feeding of speaker cones one by one.

Description

Technical Field

[0001] The invention relates to loudspeaker manufacturing equipment, and in particular to a feeding device for a loudspeaker cone. Background Art

[0002] A loudspeaker, also known as a "horn", is a device that can convert electrical signals into sound signals. The cone is one of the important components of a loudspeaker and plays a key role in the sound of the speaker. It is also called a diaphragm or a sound membrane, and is made of paper, plastic, etc. At present, in the loudspeaker assembly line, the loading of the speaker cone is mainly done manually, and the assembly efficiency is low. In addition, the cones are usually stacked together and stored in stacks. When loading, the stacked cones need to be separated one by one, and the speaker cones are usually thin and light, which greatly increases the difficulty of operation and requires a high level of proficiency for the operator. Summary of the invention

[0003] In view of the above problems, the present invention provides a feeding device for speaker cones, which can realize separate feeding of speaker cones one by one.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A feeding device for a speaker cone comprises a material storage mechanism, a material taking mechanism and a material dividing mechanism; wherein:

[0006] The storage mechanism includes at least one storage unit for storing a plurality of cones stacked up and down;

[0007] The material taking mechanism comprises a material taking manipulator for taking out the sound basin from the material storage unit;

[0008] The material distribution mechanism comprises at least one material receiving tray for receiving the sound cone taken out by the material taking robot, the material distribution mechanism has a material distribution state, when the material distribution mechanism is in the material distribution state, the number of sound cones on at least one material receiving tray is greater than one, and the material receiving tray has a negative pressure for adsorbing the lower layer of sound cones;

[0009] The material distribution mechanism also includes at least one material distribution component for removing the sound basin on the material receiving tray.

[0010] Preferably, the material distributing mechanism comprises at least two material receiving trays, and the material distributing assembly has at least two working positions correspondingly, and each of the working positions is located above the corresponding material receiving tray.

[0011] In a preferred embodiment, the material dividing mechanism includes a first material receiving tray, a second material receiving tray and a third material receiving tray, and the material dividing component includes a first material dividing robot and a second material dividing robot. When the material dividing component is in a first working position, the first material dividing robot is located above the first material receiving tray, and the second material dividing robot is located above the second material receiving tray; when the material dividing component is in a second working position, the first material dividing robot is located above the second material receiving tray, and the second material dividing robot is located above the third material receiving tray.

[0012] In a more preferred embodiment, when the material dividing assembly is in the second working position, the material taking robot is located above the first material receiving tray.

[0013] In a more preferred embodiment, the loading device also includes a loading robot for moving the sound cone on the third material receiving tray to the speaker assembly line, and when the material distribution assembly is in the first working position, the loading robot is located above the third material receiving tray.

[0014] In one embodiment, the material storage mechanism includes a turntable rotatably disposed on a frame, and the number of the material storage units is multiple, and the multiple material storage units are fixedly disposed on the turntable and spaced apart along the circumferential direction of the turntable.

[0015] In one embodiment, the material storage unit includes a base and a material rod extending upward from the base for allowing a plurality of stacked sound cones to pass through, and the upper surface of the base has a concave curved surface that matches the back of the sound cone.

[0016] In one embodiment, the material picking mechanism also includes a lifting device for lifting the sound basin on the material storage unit and a clamping assembly for placing the sound basin on the lifting device. The material picking mechanism also includes a first vertical guide rail extending in the up-down direction and a first horizontal guide rail extending in the horizontal direction. The material picking robot can be movably arranged on the first vertical guide rail in the up-down direction, and the first vertical guide rail can be movably arranged on the first horizontal guide rail in the horizontal direction. The first horizontal guide rail passes through the clamping assembly and one of the material receiving trays of the material distribution mechanism.

[0017] In a more preferred embodiment, the clamping assembly includes a pair of clamping members that are arranged in parallel and can move toward each other, and the clamping assembly also includes a pair of support plates located between the clamping members, each of the clamping members corresponds to one of the support plates and is fixedly connected or integrally formed with the corresponding support plate, and the support plate extends horizontally from the side of the clamping member to the other clamping member.

[0018] In one embodiment, the material picking robot has an outer convex surface that matches the front side of the sound basin, and the outer convex surface is provided with a suction port that can be connected to a negative pressure source.

[0019] In one embodiment, the material distributing assembly includes a material distributing robot, and the material distributing robot has an outer convex surface matching with the front side of the sound basin, and the outer convex surface is provided with a suction port that can be connected to a negative pressure source.

[0020] In one embodiment, the material dividing mechanism also includes a second horizontal guide rail extending in the horizontal direction and a second vertical guide rail extending in the vertical direction, the second horizontal guide rail is fixedly arranged on the frame and passes through each of the material receiving trays, the vertical guide rail can be movably arranged on the second horizontal guide rail in the horizontal direction, and the material dividing assembly can be movably arranged on the second vertical guide rail in the up and down direction.

[0021] In one embodiment, the material receiving tray has a concave curved surface that matches the back of the sound basin, and one or more negative pressure holes that can be connected to a negative pressure source are provided on the concave curved surface.

[0022] In one embodiment, the middle portion of the material receiving tray also has a positioning protrusion extending upward for inserting into the through hole of the sound basin. Further, the upper end surface of the positioning protrusion is an inclined surface or a curved surface extending radially downward from the center.

[0023] Herein, the back side of the cone specifically refers to the outer surface of the cone that is arched outwards, and correspondingly, the front side of the cone refers to the inner surface of the cone that is recessed inwards.

[0024] The present invention adopts the above solution, which has the following advantages compared with the prior art:

[0025] According to the loading device of the present invention, when the number of sound cones taken out by the material taking robot from the material storage unit is more than one, that is, when the number of sound cones on at least one material receiving tray is more than one, the material receiving tray has a negative pressure to adsorb and fix the sound cones on the lower layer, and the material separation component can only take away the sound cones on the upper layer on the material receiving tray, thereby realizing the separation of multiple sound cones; the loading device can realize the separation of the speaker sound cones and realize the one-by-one loading of the sound cones, avoiding the situation where multiple sound cones are overlapped during loading, thereby improving the efficiency and the assembly yield of the speaker and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 is a three-dimensional schematic diagram of an automatic feeding device for a speaker cone according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0029] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0030] Figure 4 for Figure 1 A three-dimensional schematic diagram of the feeding device from another perspective;

[0031] Figure 5 for Figure 1 A front view of the feeding device shown;

[0032] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0033] Figure 7 for Figure 1 A rear view of the feeding device shown;

[0034] Figure 8 for Figure 1 A side view of the loading device shown.

[0035] In the above figures,

[0036] 1. Material storage mechanism; 11. Material storage unit; 111. Base; 1110. Concave curved surface; 112. Material rod; 12. Turntable; 13. Rotating motor;

[0037] 2. Material taking mechanism; 21. Material taking manipulator; 210. Outer convex surface; 211. Material suction port; 22. Lifting device; 23. Clamping assembly; 231. Clamping member; 232. Support plate; 233. Third horizontal guide rail; 24. First vertical guide rail; 25. First horizontal guide rail; 26. Cylinder; 27. Cylinder;

[0038] 3. Material distribution mechanism; 30. Material receiving tray; 301. Inner concave surface; 302. Negative pressure hole; 303. Positioning protrusion; 31. First material receiving tray; 32. Second material receiving tray; 33. Third material receiving tray; 34. Material distribution assembly; 341. First material distribution manipulator; 342. Second material distribution manipulator; 343. Outer convex surface; 344. Material suction port; 35. Second vertical guide rail; 36. Second horizontal guide rail; 37. Cylinder; 38. Cylinder;

[0039] 4. Rack;

[0040] 5. Sound basin; 51. Concave surface. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0042] The upper and lower parts mentioned in the present invention are defined according to the habits of general consumers. When consumers face the front of the feeding device, Figure 5 In the front view shown, the upper side of the paper is “up” and the lower side of the paper is “down”.

[0043] Reference Figures 1 to 8 As shown, this embodiment provides a feeding device for speaker cones, which mainly includes a storage mechanism 1, a picking mechanism 2 and a dividing mechanism 3. Among them, the storage mechanism 1 is used to store the cones 5 placed in stacks, and it includes at least one storage unit 11 for storing multiple cones 5 stacked up and down. The picking mechanism 2 is used to move the cones 5 on the upper layer of the storage unit 11 to the dividing mechanism 3, and it includes a picking robot 21 for taking out the cones 5 in the storage unit 11 and placing them on the dividing mechanism 3. Ideally, the picking robot 21 takes one cone from the storage unit 11 each time, but because the cones are light and thin, and are stacked together, the actual situation is that two or more stacked cones are often taken at a time when picking up materials; the above-mentioned dividing mechanism 3 is used to separate two or more stacked cones, so that the feeding robot can place the cones one by one on the speaker assembly line. The material dividing mechanism 3 includes at least one material receiving tray 30 for receiving the sound basin taken out by the material taking robot 21 for loading, and the material dividing mechanism 3 has a material dividing state. When the number of sound basins taken out by the material taking robot 21 from the material storage unit 11 is more than one, that is, when the number of sound basins on at least one material receiving tray 30 is more than one, the material dividing mechanism 3 is switched to the material dividing state, in which the material receiving tray 30 has a negative pressure for adsorbing the lower layer of sound basins. The material dividing mechanism 3 also includes at least one material dividing component 34 for removing the sound basins on the material receiving tray 30, and when the material dividing mechanism 3 is in the material dividing state, the material receiving tray 30 has a negative pressure to adsorb and fix the lower layer of sound basins, and the material dividing component 34 can only remove the upper layer of sound basins on the material receiving tray, thereby realizing the separation of multiple sound basins.

[0044] Combination Figure 4 , Figure 7 and Figure 8As shown, the number of storage units 11 is multiple. The storage mechanism 1 also includes a turntable 12 rotatably arranged on the frame 4, and the multiple storage units 11 are fixedly arranged on the turntable 12 and arranged at intervals along the circumferential direction of the turntable 12. In this embodiment, the number of storage units 11 is specifically eight, and the eight storage units 11 are evenly spaced at the edge of the turntable 12, and the center angle between two adjacent storage units 11 is 45 degrees. The storage mechanism 1 also includes a driving mechanism for driving the turntable 12 to rotate. In this embodiment, the driving mechanism specifically includes a rotating motor 13, and the rotating motor 13 drives a rotating shaft to rotate. The axis of the rotating shaft extends in the up and down direction. The rotating shaft can be rotatably arranged on the frame 4 around its own axis, and the turntable 12 is fixedly arranged on the rotating shaft. When the sound cones 5 on the storage unit 11 at the material picking mechanism 2 are used up, the rotating motor 13 drives the turntable 12 to rotate 45 degrees, and the next storage unit 11 with sound cones is moved to the material picking mechanism 2, and the empty storage unit 11 is separated from the material picking mechanism 2 for refilling.

[0045] like Figure 4 As shown, each of the material storage units 11 includes a base 111 and a material rod 112 extending upward from the base 111 for a plurality of stacked sound basins to pass through, wherein the base 111 is fixedly disposed on the turntable 12, and the material rod 112 is fixedly connected to the base 111 and / or the turntable 12. The upper surface of the base 111 has a concave curved surface 1110 that matches the back of the sound basin. In this article, the back of the sound basin specifically refers to the outwardly arched outer surface of the sound basin, and correspondingly, the front of the sound basin refers to the inwardly recessed inner surface of the sound basin. Figure 7 and Figure 8 As shown, a through hole for arranging a voice coil is usually opened in the middle of the sound cone, and the rod 112 penetrates into the through hole of the sound cone, so that the sound cone can be stably inserted on the rod 112 and stacked on the base 111 in an up-and-down manner.

[0046] Combination Figure 2 , Figure 5 , Figure 7 and Figure 8As shown, the material taking mechanism 2 further includes a lifting device 22 for lifting the sound basin on the material storage unit 11, a clamping assembly 23 for placing the sound basin on the lifting device 22, a first vertical guide rail 24 extending in the up-down direction, and a first horizontal guide rail 25 extending in the horizontal direction. The material taking manipulator 21 is movably disposed on the first vertical guide rail 24 in the up-down direction, the first vertical guide rail 24 is movably disposed on the first horizontal guide rail 25 in the horizontal direction, and the first horizontal guide rail 25 passes through the clamping assembly 23 and one of the material receiving trays 30 of the material dispensing mechanism 3. The lifting device 22 is used to move the topmost sound basin on the material rod 112 to the height of the clamping assembly 23. The lifting device 22 specifically includes a lifting rail extending in the up-down direction, a mounting seat slidably disposed on the lifting rail in the up-down direction, at least one pair of horizontally disposed lifting members disposed on the mounting seat, and a lifting cylinder for driving the mounting seat to move up and down. The lifting member is retractable or can move horizontally relative to the mounting seat so that it can be inserted under the sound basin to lift the sound basin 5 on the material rod 112. The clamping assembly 23 includes a pair of clamping members 231 arranged in parallel and at intervals. The clamping assembly 23 also includes a pair of support plates 232 located between the clamping members 231. Each clamping member 231 corresponds to a support plate 232 and is fixedly connected or integrally formed with the corresponding support plate 232. The support plate 232 extends horizontally from the side of the clamping member 231 to the other clamping member 231. Figure 2 and Figure 8 As shown, the clamping assembly 23 also includes a third horizontal guide rail 233 fixedly arranged on the frame 4 and extending in the horizontal direction. The pair of clamping members 231 are slidably arranged on the third horizontal guide rail 233, and the sliding directions of the two are opposite. The clamping assembly 23 further includes a driving mechanism for driving the pair of clamping members 231 to slide toward each other. The material picking mechanism 2 also includes a cylinder 26 for driving the material picking manipulator 21 to move along the first vertical guide rail 24 and a cylinder 27 for driving the first vertical guide rail 24 to move along the first horizontal guide rail 25.

[0047] The material distribution mechanism 3 includes at least two material receiving trays 30, and the material distribution component 34 has at least two corresponding working positions, each of which is located above the corresponding material receiving tray 30. Figure 1 and Figure 5As shown, there are three material receiving trays 30, that is, the material distributing mechanism 3 includes a first material receiving tray 31, a second material receiving tray 32 and a third material receiving tray 33. Preferably, the first material receiving tray 31, the second material receiving tray 32 and the third material receiving tray 33 are arranged at equal intervals along a straight line. The material distributing assembly 34 specifically includes a first material distributing manipulator 341 and a second material distributing manipulator 342, which are arranged in parallel and move synchronously. When the material distributing assembly 34 is in the first working position, the first material distributing manipulator 341 is located above the first material receiving tray 31, and the second material distributing manipulator 342 is located above the second material receiving tray 32; when the material distributing assembly 34 is in the second working position, the first material distributing manipulator 341 is located above the second material receiving tray 32, and the second material distributing manipulator 342 is located above the third material receiving tray 33. In addition, the feeding device also includes a feeding robot (not shown in the figure) for moving the sound basin on the third material receiving tray 33 to the speaker assembly line. When the material dividing component 34 is in the first working position, the feeding robot is located above the third material receiving tray 33, so as to feed the divided sound basin to the speaker assembly line. Moreover, when the material dividing component 34 is in the second working position, the material taking robot 21 is located above the first material receiving tray 31.

[0048] like Figure 5 As shown, the material distribution mechanism 3 also includes a second horizontal guide rail 36 extending in the horizontal direction and a second vertical guide rail 35 extending in the vertical direction. The second horizontal guide rail 36 is fixedly arranged on the frame 4 and passes through each of the material receiving trays 30, the second vertical guide rail 35 can be movably arranged on the second horizontal guide rail 36 in the horizontal direction, and the material distribution assembly 34 can be movably arranged on the second vertical guide rail 35 in the up and down direction. The material distribution mechanism 3 also includes a cylinder 37 for driving the material distribution assembly 34 to move along the second vertical guide rail 35 and a cylinder 38 for driving the second vertical guide rail 35 to move along the second horizontal guide rail 36. It should also be noted that, in this embodiment, preferably, the extension direction of the first horizontal guide rail 25 and the extension direction of the second horizontal guide rail 36 are perpendicular to each other, so that the structure of the feeding device is compact, and the extension direction of the third horizontal guide rail 233 is parallel to the extension direction of the first horizontal guide rail 25.

[0049] like Figure 2 As shown, the main part of the front side of the sound basin 5 is an inwardly concave curved surface 51, and correspondingly, the main part of the back side of the sound basin (not shown in the figure) is an outwardly protruding convex curved surface. Figure 5 and Figure 6As shown, in this embodiment, the material picking robot 21 has an outer convex surface 210 that matches the front of the sound basin 5, the outer convex surface 210 faces downward, and the outer convex surface 210 is provided with a suction port 211 that can be connected to a negative pressure source. The number of suction ports 211 is preferably multiple, and they are evenly spaced along the circumferential direction of the material picking robot 21. The first material dividing robot 341 and the second material dividing robot 342 of the material dividing assembly 34 respectively have an outer convex surface 343 that matches the front of the sound basin 5, the outer convex surface 343 faces downward, and the outer convex surface 343 is provided with a suction port 344 that can be connected to a negative pressure source. The number of suction ports 344 is preferably multiple, and they are evenly spaced along the circumferential direction of the material dividing robot. Figure 3 As shown, each of the material receiving trays 30 (including the first material receiving tray 31, the second material receiving tray 32 and the third material receiving tray 33) has a concave curved surface 301 that matches the back of the sound basin, the concave curved surface 301 faces upward, and one or more negative pressure holes 302 that can be connected to the negative pressure source are provided on the concave curved surface 301. In this embodiment, the number of negative pressure holes 302 is preferably multiple, and they are evenly spaced along the circumferential direction of the material receiving tray 30. The above-mentioned suction ports 211 and negative pressure holes 302 are respectively connected to the negative pressure source through gas pipelines, and the negative pressure source in this embodiment can be a vacuum. The suction port is connected to the negative pressure source so that the material picking manipulator 21, the first material distribution manipulator 341, and the second material distribution manipulator 342 have negative pressure to adsorb the sound basin. When the material distribution mechanism 3 is in the material distribution state, the negative pressure hole 302 is connected to the negative pressure source so that the material receiving tray 30 has a negative pressure, thereby adsorbing the lower layer of the sound basin on the material receiving tray 30.

[0050] like Figure 3 As shown, the middle part of each of the material receiving trays 30 also has a positioning protrusion 303 extending upward, and the positioning protrusion 303 cooperates with the through hole in the middle of the sound basin. When the material taking robot 21 or the material dividing robot releases the sound basin above the material receiving tray 30, the sound basin falls on the material receiving tray 30 and the positioning protrusion 303 is inserted into the through hole of the sound basin to achieve the positioning of the sound basin and prevent it from deviating. In this embodiment, the upper end surface of the positioning protrusion 303 is an inclined surface or a curved surface extending radially downward from the center.

[0051] The working principle of the feeding device is as follows:

[0052] The storage unit 11 equipped with the sound basin is rotated in sequence to the bottom of the position that the material taking manipulator 21 can reach (specifically, below the clamping assembly 23), and the lifting device 22 lifts the sound basin of the uppermost layer of the storage unit 11 to the same height as the clamping assembly 23 and between a pair of clamping members 231, and the clamping members 231 move toward each other and contact the side of the sound basin to position the sound basin, and the support plate 232 is driven to the bottom of the sound basin to lift the sound basin, and the lifting device 22 descends to prepare for the next material taking; the material taking manipulator 21 descends to absorb and remove the sound basin on the clamping assembly 23, and the clamping assembly 23 is reset to prepare for the next material taking; the above process is repeated until there is no sound basin on the storage unit 11 below the clamping assembly 23, and the rotating motor 13 drives the turntable 12 to rotate 45 degrees, and the next storage unit 11 equipped with the sound basin is rotated to the bottom of the clamping assembly 23, and the empty storage unit 11 is moved out from under the clamping assembly 23 to facilitate feeding;

[0053] The material-retrieving manipulator 21 with the sound basin adsorbed thereon moves to the top of the first material receiving tray 31 and descends, and then releases the sound basin onto the first material receiving tray 31;

[0054] The material dividing assembly 34 moves horizontally and descends to its first working position, and the first material dividing manipulator 341 absorbs and removes the sound basin on the first material receiving tray 31; the material dividing assembly 34 moves horizontally and descends to its second working position, and the second material dividing manipulator 342 moves the sound basin on the second material receiving tray 32 to the third material receiving tray, and the first material dividing manipulator 341 moves the sound basin on the first material receiving tray 31 to the second material receiving tray 32;

[0055] The picking robot 21 repeats the above-mentioned actions to continuously place the sound cone on the first material receiving tray 31, and the dividing assembly 34 reciprocates between the first working position and the second working position to continuously move the sound cone from the first material receiving tray 31 to the second material receiving tray 32 through the first dividing robot 341, and move the sound cone from the second material receiving tray 32 to the third material receiving tray 33 through the second dividing robot 342. The loading robot reciprocates to load the sound cone on the third material receiving tray 33 onto the speaker assembly line. In this process, the thickness of the sound cone taken by the picking mechanism 2 is detected by the photoelectric detection switch. If the thickness is greater than the thickness of a single sound cone, the picking robot 21 will After the sound basin is placed on the first material receiving tray 31, the negative pressure hole on the first material receiving tray 31 is connected to the negative pressure source to absorb the sound basin on the lower layer, and the material dividing component 34 moves once to move the sound basin on the second material receiving tray 32 to the third material receiving tray 33 through the second material dividing robot 342 and remove the upper sound basin on the first material receiving tray 31 through the first material dividing robot 341 and place it on the second material receiving tray 32, and then the material dividing component 34 returns to its first working position, and moves the remaining sound basins on the first material receiving tray 31 to the second material receiving tray 32 through the first material dividing robot 341, thereby realizing material dividing and ensuring that the number of sound basins placed on the third material receiving tray 33 is always single.

[0056] The above-mentioned feeding device can realize the division of the speaker cones and realize the one-by-one feeding of the cones, avoiding the situation where multiple cones overlap during feeding, thereby improving the efficiency and the assembly yield of the speaker and reducing labor costs.

[0057] The above embodiment is only for illustrating the technical concept and features of the present invention, and is a preferred embodiment. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention.

Claims

1. A feeding device for a speaker cone, characterized in that: It includes material storage mechanism, material taking mechanism and material distribution mechanism; among which: The storage mechanism includes at least one storage unit for storing a plurality of cones stacked up and down; The material taking mechanism comprises a material taking manipulator for taking out the sound basin from the material storage unit; The material distribution mechanism comprises at least one material receiving tray for receiving the sound cone taken out by the material taking robot, the material distribution mechanism has a material distribution state, when the material distribution mechanism is in the material distribution state, the number of sound cones on at least one material receiving tray is greater than one, and the material receiving tray has a negative pressure for adsorbing the lower layer of sound cones; The material distributing mechanism further comprises at least one material distributing component for removing the sound basin on the material receiving tray; The material distributing mechanism comprises at least two material receiving trays, and the material distributing component has at least two corresponding working positions, and each working position is respectively located above the corresponding material receiving tray; the material distributing mechanism comprises a first material receiving tray, a second material receiving tray and a third material receiving tray, and the material distributing component comprises a first material distributing manipulator and a second material distributing manipulator, when the material distributing component is in the first working position, the first material distributing manipulator is located above the first material receiving tray, and the second material distributing manipulator is located above the second material receiving tray; when the material distributing component is in the second working position, the first material distributing manipulator is located above the second material receiving tray, and the second material distributing manipulator is located above the third material receiving tray; When the material dispensing assembly is in the second working position, the material taking robot is located above the first material receiving tray; and / or, the loading device further comprises a loading robot for moving the sound basin on the third material receiving tray to the speaker assembly line, and when the material dispensing assembly is in the first working position, the loading robot is located above the third material receiving tray; The material storage mechanism comprises a turntable rotatably arranged on a frame, and the material storage unit is arranged on the turntable; The material picking manipulator has an outer convex surface matched with the front side of the sound basin, and a suction port that can be connected to the negative pressure source is provided on the outer convex surface; and / or, the material distribution component includes a material distribution manipulator, and the material distribution manipulator has an outer convex surface matched with the front side of the sound basin, and a suction port that can be connected to the negative pressure source is provided on the outer convex surface; The material receiving tray has a concave curved surface matched with the back of the sound basin, and one or more negative pressure holes that can be connected to a negative pressure source are arranged on the concave curved surface.

2. The feeding device according to claim 1, characterized in that: There are multiple material storage units, which are fixed on the turntable and spaced apart along the circumferential direction of the turntable; and / or, the material storage unit includes a base and a material rod extending upward from the base for allowing multiple stacked sound basins to pass through, and the upper surface of the base has a concave curved surface that matches the back of the sound basin.

3. The feeding device according to claim 1, characterized in that: The material picking mechanism also includes a lifting device for lifting the sound basin on the material storage unit and a clamping assembly for placing the sound basin on the lifting device. The material picking mechanism also includes a first vertical guide rail extending in the up-down direction and a first horizontal guide rail extending in the horizontal direction. The material picking robot can be movably arranged on the first vertical guide rail in the up-down direction, and the first vertical guide rail can be movably arranged on the first horizontal guide rail in the horizontal direction. The first horizontal guide rail passes through the clamping assembly and one of the material receiving trays of the material distribution mechanism.

4. The feeding device according to claim 3, characterized in that: The clamping assembly includes a pair of clamping members that are arranged in parallel and can move toward each other. The clamping assembly also includes a pair of support plates located between the clamping members. Each of the clamping members corresponds to one of the support plates and is fixedly connected or integrally formed with the corresponding support plate. The support plate extends horizontally from the side of the clamping member to the other clamping member.

5. The feeding device according to claim 1, characterized in that: The material dividing mechanism also includes a second horizontal guide rail extending in the horizontal direction and a second vertical guide rail extending in the vertical direction. The second horizontal guide rail is fixedly arranged on the frame and passes through each of the material receiving supports. The vertical guide rail can be movably arranged on the second horizontal guide rail in the horizontal direction. The material dividing assembly can be movably arranged on the second vertical guide rail in the up and down direction.

6. The feeding device according to claim 1, characterized in that: The middle part of the material receiving tray is also provided with a positioning protrusion extending upward and used for inserting into the through hole of the sound basin.

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