A fully automatic loudspeaker magnetic circuit production line

Abstract

The present application relates to a fully automatic loudspeaker magnetic circuit production line, belonging to the field of loudspeaker assembly. It includes a frame and a conveying device. A circular slideway is provided on the frame, and a plurality of tooling blocks are placed on the frame and on the circular slideway. The conveying device is used to drive the tooling blocks to move directionally and circularly along the circular slideway. A feeding mechanism, a dispensing mechanism and a heat drying channel are also provided on the frame. The feeding mechanism is used to sequentially place pole pieces, magnetic pieces and magnetic bowls on the tooling blocks. The dispensing mechanism is used to add glue between the magnetic bowls and the magnetic pieces, and between the magnetic pieces and the pole pieces. The heat drying channel is used to perform heat drying treatment on the parts on the tooling blocks that have passed through the dispensing mechanism. A discharging assembly is also provided on the frame, and the discharging assembly is used to remove the parts on the tooling blocks that have passed through the heat drying channel from the tooling blocks. The present application performs automatic feeding, bonding and assembly, and discharging, improving the assembly connection accuracy and production efficiency.

Description

Technical Field

[0001] This application relates to the field of speaker assembly, and particularly to a fully automatic speaker magnetic circuit production line. Background Art

[0002] A speaker is a transducer that converts electrical signals into sound signals. The performance of a speaker has a great impact on the sound quality. A speaker is the weakest component in an audio device, but it is also the most important component for the audio effect.

[0003] The magnetic circuit of a speaker is composed of a magnetic bowl, a magnetic sheet, and a pole piece. The three are stacked in sequence and connected by glue. In related technologies, the assembly of the speaker magnetic circuit is operated by manual dispensing in cooperation with an auxiliary tooling. Since the volumes of the three parts are small and the positioning structure on the auxiliary tooling is also relatively narrow, during mass production, the production efficiency and the positioning accuracy between parts of the product will be negatively affected. Summary of the Invention

[0004] To improve the above problems, this application provides a fully automatic speaker magnetic circuit production line.

[0005] A fully automatic speaker magnetic circuit production line provided by this application adopts the following technical solutions:

[0006] A fully automatic speaker magnetic circuit production line includes a frame and a conveying device. A circular slideway is opened on the frame. A plurality of tooling blocks are placed on the frame and on the circular slideway. The conveying device is used to drive the tooling blocks to move directionally and circularly along the circular slideway. The frame is also provided with a feeding mechanism, a dispensing mechanism, and a heat baking channel. The feeding mechanism is used to sequentially place the pole piece, the magnetic sheet, and the magnetic bowl on the tooling blocks. The dispensing mechanism is used to add glue between the magnetic bowl and the magnetic sheet, and between the magnetic sheet and the pole piece. The heat baking channel is used to perform heat baking treatment on the parts on the tooling blocks that have passed through the dispensing mechanism. The frame is also provided with a discharging assembly, and the discharging assembly is used to remove the parts on the tooling blocks that have passed through the heat baking channel from the tooling blocks. A pressing block is also slidably arranged above the circular slideway on the frame. The sliding direction of the pressing block is perpendicular to the upper surface of the tooling block, and the pressing block presses the upper surface of the magnetic sheet, the pole piece, or the magnetic bowl on the tooling block.

[0007] By adopting the above technical solutions, the pole piece, the magnetic sheet, and the magnetic bowl are automatically placed on the tooling blocks in sequence. After the dispensing mechanism adds the adhesive, pressing and heat baking are carried out for reinforcement. Then, the assembled workpiece on the tooling block is removed by the discharging assembly, and the empty tooling block can be used to carry and assemble parts again. The production line works continuously, improving the production efficiency.

[0008] Preferably, the loading mechanism includes a first centrifugal disc, a second centrifugal disc, and a third centrifugal disc arranged in sequence along the moving direction of the tooling block. The first centrifugal disc is used to send the pole piece to the circulating slideway, the second centrifugal disc is used to send the magnetic piece to the circulating slideway, and the third centrifugal disc is used to send the magnetic bowl to the circulating slideway. Transfer components for moving the pole piece, magnetic piece, or magnetic bowl onto the tooling block are provided between the frame and the first centrifugal disc, the second centrifugal disc, and the third centrifugal disc. The transfer component includes a transfer block, which is movably connected to the frame relative to the frame. The transfer block adsorbs the pole piece, magnetic piece, or magnetic bowl through negative pressure air flow. The dispensing mechanism includes a dispensing needle. There are two groups of dispensing needles, which are respectively located between the first centrifugal disc and the second centrifugal disc, and between the second centrifugal disc and the third centrifugal disc.

[0009] By adopting the above technical solution, after the transfer component places the pole piece and the magnetic piece respectively sent by the first and second centrifugal discs on the tooling block, the dispensing mechanism adds the adhesive above the pole piece and the magnetic piece, and the magnetic piece and the magnetic bowl naturally contact the adhesive when placed, thereby realizing the bonding of the parts.

[0010] Preferably, the transfer component includes a dislocation slide table, which is slidably connected to the frame, and the sliding direction is parallel to the moving direction of the tooling block. A positioning groove is formed on the side wall of the dislocation slide table. During the movement of the dislocation slide table, the positioning groove is intermittently communicated with the end of the first centrifugal disc. When the positioning groove is communicated with the end of the first centrifugal disc, the positioning groove allows a single pole piece to slide in.

[0011] By adopting the above technical solution, when the positioning groove is communicated with the end of the first centrifugal disc, a single positioning groove allows a pole piece or a magnetic piece to slide in, and then the dislocation slide table moves. The pole piece or magnetic piece at the end of the centrifugal disc abuts against the side wall of the dislocation slide table and cannot move forward, reducing the stacking situation caused by the accumulation of pole pieces, magnetic pieces, or magnetic bowls here.

[0012] Preferably, a positioning groove is formed on the side wall of the tooling block, and a positioning slider is slidably arranged on the frame, and the sliding direction is perpendicular to the moving direction of the tooling block. During the process of the transfer block adsorbing and transporting the pole piece, magnetic piece, or magnetic bowl, the positioning slider is inserted into the positioning groove.

[0013] By adopting the above technical solution, when the transfer component picks up and places the pole piece, magnetic piece, or magnetic bowl, the end of the positioning slider is inserted into the corresponding positioning groove and abuts against the tooling block to position the tooling block, improving the position stability of the tooling block, and further improving the placement position accuracy of the parts.

[0014] Preferably, the glue dispensing mechanism also includes a glue injection rack and a cleaning assembly, the cleaning assembly includes a cleaning box and a cleaning sponge, the cleaning box is connected to the frame, the cleaning sponge is located in the cleaning box, and the glue injection rack is used to control the movement of the glue injection needle relative to the frame and allow the needle tip of the glue injection needle to be inserted into the cleaning sponge.

[0015] By adopting the above technical solution, with long-term use, the needle of the glue injection needle will have residual solidified glue. It can be set that after every certain number of dispensing cycles, the glue injection frame controls the needle of the glue injection needle to insert into the cleaning box and rub the needle and the cleaning sponge to remove the solidified glue on the needle.

[0016] Preferably, a rejection mechanism is also provided on the frame next to the circulating slide, and the rejection mechanism includes a detection sensor and a material return assembly, the detection sensor is used to detect the placement of parts on the tooling block, and the material return assembly is used to selectively reject the parts on the tooling block.

[0017] By adopting the above technical solution, the detection sensor is used to detect the placement of parts on the tooling block. If it is detected that the parts are not placed correctly or there is a problem with the assembly of the parts, the detection sensor will control the return component to remove the corresponding parts here to ensure the production yield.

[0018] Preferably, a top piece hole is vertically opened on the upper edge of the circulating slide, and a clearance hole is vertically opened on the upper edge of the tooling block, and the upper port of the clearance hole is blocked when the pole piece is placed on the tooling block; the material return assembly includes a lifting cylinder and a horizontal pushing cylinder, and the lifting cylinder and the horizontal pushing cylinder are fixedly connected to the frame, the lifting cylinder is located below the circulating slide and the piston rod and the top piece hole are coaxial, the extension and retraction direction of the piston rod of the horizontal pushing cylinder is perpendicular to the length direction of the circulating slide, the piston rod of the lifting cylinder abuts against the lower side of the pole piece, and the piston rod of the horizontal pushing cylinder hits the side edge of the magnetic bowl.

[0019] By adopting the above technical solution, after the lifting cylinder extends the piston rod, the end of the piston rod passes through the top piece hole and the give way hole, the piston rod of the lifting cylinder abuts against the lower side of the pole piece and lifts it to the height of the piston rod of the horizontal push cylinder, and then the piston rod of the horizontal push cylinder extends out and hits the side edge of the magnetic bowl. After the parts are subjected to the lateral thrust, they fly out in the horizontal direction to achieve material removal.

[0020] Preferably, an auxiliary block is hingedly provided at the end of the piston rod of the jacking cylinder, the hinge axis is parallel to the length direction of the circulating slide, and the hinge axis is located on the side of the piston rod of the jacking cylinder away from the horizontal thrust cylinder, and a torsion spring is provided on the hinge axis between the auxiliary block and the piston rod of the jacking cylinder. In a natural state, the top surface of the auxiliary block is parallel to the upper surface of the tooling block.

[0021] Preferably, an auxiliary plate is slidably arranged on the top of the auxiliary block. The plate surface of the auxiliary plate facing away from the auxiliary block is in fitting contact with the magnetic sheet. An initial position spring is connected between the auxiliary plate and the auxiliary block. In the natural state, the sliding direction of the auxiliary plate relative to the auxiliary block is parallel to the telescopic direction of the piston rod of the lifting cylinder. An auxiliary pulling rope is connected between the auxiliary plate and the piston rod of the lifting cylinder.

[0022] By adopting the above technical solution, when performing rejection, the end of the piston rod of the horizontal pushing cylinder abuts against the edge of the magnetic bowl and also abuts against the side wall of the auxiliary block. After the auxiliary block receives the lateral thrust, it swings towards the waste slot side; at the same time, since the distance between the connection point of the auxiliary plate and the auxiliary pulling rope and the end of the piston rod of the lifting cylinder becomes longer, the auxiliary pulling rope has a tendency to stretch, and the auxiliary plate moves closer to the auxiliary block under the action of the tension. Thus, the parts on the auxiliary plate are more likely to be separated from the auxiliary plate, thereby improving the rejection success rate; and since the piston rod of the horizontal pushing cylinder will surely collide with the auxiliary block, the requirement for the installation position accuracy is greatly reduced.

[0023] To sum up, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the settings of the conveying device, the circulating slideway, the feeding mechanism, the dispensing mechanism, the heat drying channel and the unloading assembly, the pole piece, the magnetic sheet and the magnetic bowl are automatically placed on the tooling block in sequence. After the dispensing mechanism adds the adhesive, it is pressurized and heat dried for reinforcement, and then the assembled workpiece on the tooling block is taken off by the unloading assembly. The empty tooling block can be used to carry and assemble parts again, and the production line works continuously, improving the production efficiency;

[0025] 2. Through the setting of the rejection mechanism, the detection sensor detects the workpiece on the tooling block that has undergone the previous process. When a quality defect in assembly or a deviation in the placement position is detected, the unloading assembly ejects the parts on the tooling block, preventing this part from undergoing subsequent processing, thereby improving the qualified product rate. Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the fully automatic loudspeaker magnetic circuit production line in Embodiment 1 of the present application.

[0027] Figure 2 is a schematic structural diagram of the loudspeaker magnetic circuit and the tooling block in Embodiment 1 of the present application.

[0028] Figure 3 is Figure 1 a partial enlarged view of part A in

[0029] Figure 4 is a schematic structural diagram of the fully automatic loudspeaker magnetic circuit production line in Embodiment 1 of the present application.

[0030] Figure 5 It is a schematic structural diagram of the rejection mechanism in the first embodiment of the present application.

[0031] Figure 6 It is a schematic structural diagram of the rejection mechanism in the second embodiment of the present application.

[0032] Explanation of reference numerals: 1, frame; 11, circulating chute; 12, top part hole; 13, tooling block; 131, positioning groove; 132, positioning edge; 133, relief hole; 14, positioning slider; 15, pressing block; 151, pressure block; 16, waste slot; 17, heat drying channel; 2, feeding mechanism; 21, first centrifugal disc; 22, second centrifugal disc; 23, third centrifugal disc; 24, transfer assembly; 241, transfer block; 242, offset slide; 243, positioning groove; 3, dispensing mechanism; 31, glue injection needle; 32, glue injection frame; 33, cleaning box; 4, discharging assembly; 41, distance sensor; 42, finished product tray; 5, conveying device; 51, first reversing cylinder; 52, grouping cylinder; 53, conveyor belt; 54, heat drying cylinder; 55, second reversing cylinder; 6, rejection mechanism; 61, detection sensor; 62, material discharging assembly; 621, lifting cylinder; 622, horizontal pushing cylinder; 623, auxiliary block; 624, auxiliary plate; 625, initial position spring; 626, auxiliary pulling rope; 7, speaker magnetic circuit; 71, pole piece; 72, magnetic sheet; 73, magnetic bowl. Detailed implementation manners

[0033] The following further Figures 1-6 describes the present application in detail with reference to the

[0034] Embodiment 1:

[0035] The embodiment of the present application discloses a fully automatic speaker magnetic circuit production line. As shown in Figure 1 and 2 , it includes a frame 1 and a conveying device 5. A circulating chute 11 is provided on the frame 1. A plurality of tooling blocks 13 are placed on the frame 1 and on the circulating chute 11. The conveying device 5 is used to drive the tooling blocks 13 to move in a directional cycle along the circulating chute 11. The tooling block 13 is used to place three parts of the speaker magnetic circuit 7: the pole piece 71, the magnetic sheet 72, and the magnetic bowl 73. The frame 1 is also provided with a feeding mechanism 2, a dispensing mechanism 3, a heat drying channel 17, and a discharging assembly 4. The feeding mechanism 2 is used to place the pole piece 71, the magnetic sheet 72, and the magnetic bowl 73 on the tooling block 13 in sequence from bottom to top. The dispensing mechanism 3 is used to add glue between the magnetic bowl 73 and the magnetic sheet 72, and between the magnetic sheet 72 and the pole piece 71. The heat drying channel 17 is used to perform heat drying treatment on the parts on the tooling block 13 that have passed through the dispensing mechanism 3. The discharging assembly 4 is used to remove the parts on the tooling block 13 that have passed through the heat drying channel 17 from the tooling block 13.

[0036] As shown inFigure 1 and 2 As shown, the track of the circulating slide 11 is rectangular, and the tooling block 13 is approximately rectangular. When placed on the circulating slide 11, its upper surface is provided with two positions for placing the speaker magnetic circuit 7. The pole piece 71 and the magnetic sheet 72 are both rectangular thin sheets, and the magnetic bowl 73 is a rectangular metal sheet with a bent structure on the edge. Above the tooling block 13, the bending direction of the bent structure on the edge of the magnetic bowl 73 is downward.

[0037] like Figure 1 As shown, the feeding mechanism 2 includes a first centrifugal disc 21, a second centrifugal disc 22 and a third centrifugal disc 23 which are arranged in sequence along the moving direction of the tooling block 13. The first centrifugal disc 21 is used to send the pole piece 71 to the circulating slide 11, the second centrifugal disc 22 is used to send the magnetic piece 72 to the circulating slide 11, and the third centrifugal disc 23 is used to send the magnetic bowl 73 to the circulating slide 11. A transfer component 24 for moving the pole piece 71, the magnetic piece 72 or the magnetic bowl 73 to the tooling block 13 is provided between the frame 1 and the first centrifugal disc 21, the second centrifugal disc 22 and the third centrifugal disc 23. At the feeding mechanism 2, the arrangement direction of the two positions for placing parts on the tooling block 13 is consistent with the moving direction of the tooling block 13, and the conveying device 5 drives the tooling block 13 to move one position at a time. The first centrifugal disc 21, the second centrifugal disc 22 and the third centrifugal disc 23 each have two parallel material chutes, that is, the transfer component 24 transports two pole pieces 71, magnetic pieces 72 or magnetic bowls 73 to the tooling block 13 at a time. The three centrifugal discs are arranged in parallel, and their material chutes are parallel to each other, and the length direction is perpendicular to the length direction of the circulation chute 11 here.

[0038] like Figure 1 and 3As shown in the figure, the transfer component 24 includes a transfer block 241 and a dislocation slide 242. The transfer block 241 is slidably connected to the frame 1. A cylinder is fixedly arranged on the frame 1 to control the two-dimensional movement of the transfer block 241 along the length direction perpendicular to the circular slideway 11 here. A negative pressure air duct is arranged on the transfer block 241 and is externally connected to a negative pressure pump. The transfer block 241 grabs and moves the pole piece 71, the magnetic piece 72 or the magnetic bowl 73 by means of negative pressure adsorption. The dislocation slide 242 is located at the end of the material slideway of the first centrifugal disk 21, the second centrifugal disk 22 or the third centrifugal disk 23 and is slidably connected to the frame 1. The sliding direction is parallel to the moving direction of the tooling block 13. Two placement grooves 243 are formed on the dislocation slide 242. Taking the dislocation slide 242 between the first centrifugal disk 21 and the frame 1 as an example, during the movement of this dislocation slide 242, its placement groove 243 is intermittently communicated with the end of the first centrifugal disk 21. When the placement groove 243 is communicated with the end of the first centrifugal disk 21, a single placement groove 243 allows a pole piece 71 to slide in. Then the dislocation slide 242 moves, and the pole piece 71 at the end of the first centrifugal disk 21 abuts against the side wall of the dislocation slide 242 and cannot move forward continuously, reducing the stacking situation caused by the accumulation of the pole pieces 71 here. At the same time, the pole piece 71 on the moved dislocation slide 242 is located directly below the transfer block 241 and waits to be sucked.

[0039] As Figure 2 and 3 shown in the figure, a positioning groove 131 is formed on the side wall of the tooling block 13. A positioning slider 14 is slidably arranged on the frame 1. The sliding direction is perpendicular to the moving direction of the tooling block 13. A positioning cylinder for pushing and pulling the positioning slider 14 to move is also arranged on the frame 1. When the transfer component 24 picks and places the pole piece 71, the magnetic piece 72 or the magnetic bowl 73, the end of the positioning slider 14 is inserted into the corresponding positioning groove 131 and abuts against the tooling block 13 to position the tooling block 13, improve the position stability of the tooling block 13, and further improve the placement position accuracy of the parts.

[0040] As Figure 1 and 4As shown, the dispensing mechanism 3 includes two dispensing needles 31, which are respectively located between the first centrifugal disk 21 and the second centrifugal disk 22, and between the second centrifugal disk 22 and the third centrifugal disk 23, and are respectively used for applying glue to the upper surface of the pole piece 71 and the upper surface of the magnetic sheet 72. In this embodiment, the adhesive used is AB glue, so the number of times of glue application at each glue application position is two. The dispensing mechanism 3 further includes a dispensing rack 32 and a cleaning assembly. A tank for storing the adhesive is fixedly installed on the dispensing rack 32, and the dispensing needle 31 is located below the tank; the dispensing rack 32 is slidably connected to the frame 1, and a cylinder for controlling the movement of the dispensing rack 32 is provided on the frame 1. The dispensing rack 32 carries the tank and the dispensing needle 31 to move two-dimensionally in a direction perpendicular to the moving direction of the tooling block 13. The cleaning assembly includes a cleaning box 33 and a cleaning sponge. The cleaning box 33 is fixedly connected to the frame 1, and the cleaning sponge is located inside the cleaning box 33 (not shown in the figure). The dispensing rack 32 can insert the needle tip of the dispensing needle 31 into the cleaning sponge. As the needle tip of the dispensing needle 31 will remain solidified adhesive after long-term use, it can be set that after a certain number of dispensing cycles, the dispensing rack 32 controls the needle tip of the dispensing needle 31 to be inserted into the cleaning box 33 and the needle tip to rub against the cleaning sponge to remove the solidified matter on the needle tip.

[0041] As Figures 1-3 shown, positioning edges 132 for positioning each part are formed on the upper surface of the tooling block 13, and the positioning edges 132 are in the shape of a rectangular frame; when placed correctly, the pole piece 71 and the magnetic sheet 72 are located within the rectangular frame formed by the positioning edges 132, and the bent structure at the edge of the magnetic bowl 73 will be located outside the positioning edges 132. A pressing block 15 is also slidably provided on the frame 1 above the circulating slideway 11, and the sliding direction is perpendicular to the upper surface of the tooling block 13; the pressing block 15 is located behind the first centrifugal disk 21, behind the second centrifugal disk 22, and behind the third centrifugal disk 23. A cylinder for controlling the downward movement of the pressing block 15 is installed on the frame 1. A pressure block 151 is elastically connected to the lower part of the pressing block 15 by a spring. After placing the corresponding part on the tooling block 13 and moving downward, the pressure block 151 abuts and presses on the upper part of the pole piece 71, the magnetic sheet 72 or the magnetic bowl 73 to correct the deviation of the part with a slight placement deviation, and improve the placement stability and position accuracy of the corresponding part on the tooling block 13.

[0042] As Figure 1 、 4As shown in Figure 5, a rejection mechanism 6 is also provided on the frame 1 beside the circulating slide 11. The rejection mechanism 6 includes a detection sensor 61 and a material return assembly 62. The rejection mechanism 6 is located after the pressure block 15 behind the third centrifugal disk 23. The rejection mechanism 6 includes a detection sensor 61 and a material return assembly 62. The detection sensor 61 is used to detect the placement of parts on the tooling block 13. If it is detected that the parts are not placed correctly or there is a problem with the assembly of the parts, the detection sensor 61 will control the material return assembly 62 to reject the corresponding parts here. A top piece hole 12 is vertically opened on the upper edge of the circulating slide 11, and a clearance hole 133 is vertically opened on the upper edge of the tooling block 13. The clearance hole 133 is located within the rectangular frame formed by the positioning edge 132. When the pole piece 71 is placed on the tooling block 13, the upper port of the clearance hole 133 is blocked. In this embodiment, the detection sensor 61 works by a mechanism combining visual detection and infrared detection.

[0043] like Figure 4 and 5 As shown, the material removal assembly 62 includes a lifting cylinder 621 and a horizontal push cylinder 622, both of which are fixedly connected to the frame 1, the lifting cylinder 621 is located below the circulating slide 11 and the piston rod is coaxial with the top piece hole 12, the piston rod of the horizontal push cylinder 622 is in the horizontal direction and perpendicular to the length direction of the circulating slide 11, and after the lifting cylinder 621 extends the piston rod, the end of the piston rod passes through the top piece hole 12 and the clearance hole 1 33, the piston rod of the lifting cylinder 621 abuts against the lower side of the pole piece 71 and lifts it to the height of the piston rod of the horizontal push cylinder 622, and then the piston rod of the horizontal push cylinder 622 extends and hits the side edge of the magnetic bowl 73, and the parts are subjected to the lateral thrust and fly out in the horizontal direction; a waste trough 16 is provided on the frame 1 and on the side of the circulation slide 11 away from the horizontal push cylinder 622, and the parts subjected to the thrust of the horizontal push cylinder 622 fall into the waste trough 16 for collection. If the loudspeaker magnetic circuit 7 on the tooling block 13 passes the detection of the detection sensor 61, its assembly process is completed and it is about to enter the hot drying channel 17.

[0044] like Figure 1 and 4As shown in the figure, in order to increase the residence time of each workpiece block in the heat drying channel 17, the tooling blocks 13 are grouped before the heat drying channel 17. Every four tooling blocks 13 form a group. The arrangement direction of the four tooling blocks 13 is perpendicular to the length direction of the heat drying channel 17. The single travel distance of each group of tooling blocks 13 is also the length of one tooling block 13, but the stagnation time is four times that of the single travel stagnation time of the tooling block 13 at the feeding mechanism 2. The conveying device 5 includes a first reversing cylinder 51, a grouping cylinder 52, a conveyor belt 53 and a heat drying cylinder 54. After the tooling block 13 passes through the unloading assembly 62, the first reversing cylinder 51 pushes the tooling block 13 in the horizontal and vertical directions. The conveyor belt 53 is located on the frame 1, and its conveying direction is the same as the telescopic direction of the piston rod of the first reversing cylinder 51. After the first reversing cylinder 51 pushes eight tooling blocks 13, the grouping cylinder 52 pushes these eight tooling blocks 13 together again in the horizontal and vertical directions. The advancing direction of the grouping cylinder 52 is perpendicular to the conveying direction of the conveyor belt 53, so that these eight tooling blocks 13 are simultaneously moved onto the conveyor belt 53, and the eight tooling blocks 13 are two groups. A pressing block 15 is also provided on the frame 1 between the grouping cylinder 52 and the conveyor belt 53. When a row of eight tooling blocks 13 are waiting statically before entering the conveyor belt 53, the pressing block 15 here can press the speaker magnetic circuit 7 on the tooling block 13 below to improve the fitting degree between parts and the diffusion uniformity of the adhesive between adjacent two parts. After the conveyor belt 53 is started, it can transport the tooling blocks 13 thereon to the starting end of the heat drying channel 17. The heat drying cylinder 54 is located at the starting end of the heat drying channel 17, and its advancing direction is also perpendicular to the conveying direction of the conveyor belt 53 and parallel to the length direction of the heat drying channel 17. The heat drying cylinder 54 can push four tooling blocks 13 forward by a distance of one body length into the heat drying channel 17 in a single push.

[0045] As Figure 1 and 4As shown, the conveying device 5 also includes a second reversing cylinder 55, the propulsion direction of the second reversing cylinder 55 is perpendicular to the length direction of the hot drying channel 17. When the tooling block 13 drives out of the hot drying channel 17, the second reversing cylinder 55 controls the tooling block 13 to move in the horizontal and vertical directions, and moves a body distance at a time. The tooling block 13 continues to move to the unloading assembly 4, and the unloading assembly 4 removes the speaker magnetic circuit 7 on the tooling block 13. The mechanism principle of removal is similar to that of the transfer block 241, which will not be repeated here; the unloading assembly 4 includes a finished product tray 42, which is placed on the frame 1 and located next to the circulating slide 11. The removed products fall on the finished product tray 42 for collection. The unloading assembly 4 also includes a distance sensor 41. After the product is removed, the distance sensor 41 continues to move and is detected by the distance sensor 41. When it is detected that the product has not been removed, the conveying device 5 is controlled to stop running and send an alarm signal to remind the operator to manually take the product. Then the top of the tooling block 13 is left empty, and it continues to move to the loading mechanism 2 to place the parts again.

[0046] Embodiment 2:

[0047] like Figure 5 As shown, in embodiment 1, the operation of the material return assembly 62 is achieved through the cooperation of the lifting cylinder 621 and the horizontal pushing cylinder 622. Since the magnetic bowl 73 is thin and small in size, the smooth progress of the rejection process requires high position accuracy of the piston rod of the lifting cylinder 621 and the piston rod of the horizontal pushing cylinder 622, and collision of the piston rods of the two should be avoided as much as possible.

[0048] like Figure 6 As shown, on the basis of Example 1, in this embodiment, the piston rod end of the lifting cylinder 621 is hingedly provided with an auxiliary block 623, the hinge axis is parallel to the length direction of the circulating slide 11, and the hinge axis is located on the side of the piston rod of the lifting cylinder 621 away from the horizontal thrust cylinder 622; the top of the auxiliary block 623 is slidably provided with an auxiliary plate 624, and after the piston rod of the lifting cylinder 621 rises, the plate surface of the auxiliary plate 624 away from the side of the auxiliary block 623 will be in contact with the magnetic sheet 72. An initial position spring 625 is connected between the auxiliary plate 624 and the auxiliary block 623, a torsion spring is provided on the hinge shaft between the auxiliary block 623 and the piston rod of the lifting cylinder 621, and an auxiliary pull rope 626 is connected between the auxiliary plate 624 and the piston rod of the lifting cylinder 621. In a natural state, the top surface of the auxiliary block 623 is parallel to the upper surface of the tooling block 13, the sliding direction of the auxiliary plate 624 relative to the auxiliary block 623 is parallel to the extension and retraction direction of the piston rod of the lifting cylinder 621, and the auxiliary pull rope 626 is in a tensioned state.

[0049] like Figure 6As shown, when performing rejection, the piston rod of the lifting cylinder 621 moves upward, the auxiliary block 623 and the auxiliary rod pass through the ejector hole 12 and the relief hole 133, and then the piston rod of the horizontal push cylinder 622 moves horizontally. The end of the piston rod of the horizontal push cylinder 622 abuts against the edge of the magnetic bowl 73 and also abuts against the side wall of the auxiliary block 623. After the auxiliary block 623 receives the horizontal thrust, it swings towards the waste slot 16; at the same time, since the distance between the connection point of the auxiliary plate 624 and the auxiliary pull rope 626 and the end of the piston rod of the lifting cylinder 621 becomes longer, the auxiliary pull rope 626 has a tendency to elongate, and the auxiliary plate 624 moves closer to the auxiliary block 623 under the tension, so that the parts on the auxiliary plate 624 are also more likely to be separated from the auxiliary plate 624, thereby improving the rejection success rate. And because the piston rod of the horizontal push cylinder 622 will surely collide with the auxiliary block 623, the requirement for the installation position accuracy is greatly reduced.

[0050] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A fully automatic loudspeaker magnetic circuit production line, characterized in that: It includes a frame (1) and a conveying device (5). A circulating chute (11) is provided on the frame (1). A plurality of tooling blocks (13) are placed on the frame (1) and on the circulating chute (11). The conveying device (5) is used to drive the tooling blocks (13) to move in a directional cycle along the circulating chute (11). An unloading mechanism (2), a dispensing mechanism (3) and a heat drying channel (17) are further provided on the frame (1). The unloading mechanism (2) is used to sequentially place a pole piece (71), a magnetic sheet (72) and a magnetic bowl (73) on the tooling blocks (13). The dispensing mechanism (3) is used to add glue between the magnetic bowl (73) and the magnetic sheet (72), and between the magnetic sheet (72) and the pole piece (71). The heat drying channel (17) is used to perform heat drying treatment on the parts on the tooling blocks (13) passing through the dispensing mechanism (3); An unloading assembly (4) is further provided on the frame (1). The unloading assembly (4) is used to remove the parts on the tooling blocks (13) passing through the heat drying channel (17) from the tooling blocks (13); A pressing block (15) is further slidably provided on the frame (1) and above the circulating chute (11). The sliding direction of the pressing block (15) is perpendicular to the upper surface of the tooling block (13). The pressing block (15) presses the upper surface of the magnetic sheet (72), the pole piece (71) or the magnetic bowl (73) on the tooling block (13); The unloading mechanism (2) includes a first centrifugal disk (21), a second centrifugal disk (22) and a third centrifugal disk (23) arranged in sequence along the moving direction of the tooling blocks (13). The first centrifugal disk (21) is used to send the pole piece (71) to the circulating chute (11). The second centrifugal disk (22) is used to send the magnetic sheet (72) to the circulating chute (11). The third centrifugal disk (23) is used to send the magnetic bowl (73) to the circulating chute (11). Transfer components (24) for moving the pole piece (71), the magnetic sheet (72) or the magnetic bowl (73) onto the tooling blocks (13) are provided between the frame (1) and the first centrifugal disk (21), the second centrifugal disk (22) and the third centrifugal disk (23). The transfer component (24) includes a transfer block (241). The transfer block (241) is movably connected to the frame (1). The transfer block (241) adsorbs the pole piece (71), the magnetic sheet (72) or the magnetic bowl (73) through negative pressure air flow; The dispensing mechanism (3) includes injection needles (31). There are two groups of the injection needles (31), and the two groups of injection needles (31) are respectively located between the first centrifugal disk (21) and the second centrifugal disk (22), and between the second centrifugal disk (22) and the third centrifugal disk (23); The transfer assembly (24) comprises a dislocation slide (242), the dislocation slide (242) is slidably connected to the frame (1), the sliding direction is parallel to the moving direction of the tooling block (13), the dislocation slide (242) is provided with a positioning groove (243), during the movement of the dislocation slide (242), the positioning groove (243) and the end of the first centrifugal disk (21) are intermittently connected, when the positioning groove (243) and the end of the first centrifugal disk (21) are connected, the positioning groove (243) allows a single pole piece (71) to slide into; The frame (1) is also provided with a rejection mechanism (6) beside the circulating slideway (11), the rejection mechanism (6) comprising a detection sensor (61) and a material rejection assembly (62), the detection sensor (61) being used to detect the placement of parts on the tooling block (13), and the material rejection assembly (62) being used to selectively reject the parts on the tooling block (13); The circulating slideway (11) is provided with a top hole (12) vertically on the upper side, the tooling block (13) is provided with a clearance hole (133) vertically on the upper side, and the pole piece (71) is placed on the tooling block (13) to block the upper end of the clearance hole (133); the material removal assembly (62) comprises a lifting cylinder (621) and a horizontal pushing cylinder (622), and the lifting cylinder (621) and the horizontal pushing cylinder (622) are both The frame (1) is fixedly connected, the lifting cylinder (621) is located below the circulating slideway (11) and the piston rod and the top piece hole (12) are coaxial, the piston rod of the horizontal thrust cylinder (622) is in a telescopic direction perpendicular to the length direction of the circulating slideway (11), the piston rod of the lifting cylinder (621) abuts against the lower side of the pole piece (71), and the piston rod of the horizontal thrust cylinder (622) hits the side edge of the magnetic bowl (73); An auxiliary block (623) is hingedly provided at the end of the piston rod of the lifting cylinder (621), the hinge axis is parallel to the length direction of the circulating slideway (11), and the hinge axis is located on the side of the piston rod of the lifting cylinder (621) away from the horizontal thrust cylinder (622), and a torsion spring is provided on the hinge axis between the auxiliary block (623) and the piston rod of the lifting cylinder (621), and in a natural state, the top surface of the auxiliary block (623) is parallel to the upper surface of the tooling block (13); An auxiliary plate (624) is slidably provided on the top of the auxiliary block (623); the plate surface of the auxiliary plate (624) facing away from the auxiliary block (623) is in contact with the magnetic sheet (72); an initial position spring (625) is connected between the auxiliary plate (624) and the auxiliary block (623); in a natural state, the sliding direction of the auxiliary plate (624) relative to the auxiliary block (623) is parallel to the extension and retraction direction of the piston rod of the lifting cylinder (621); an auxiliary pull rope (626) is connected between the auxiliary plate (624) and the piston rod of the lifting cylinder (621).

2. The fully automatic loudspeaker magnetic circuit production line according to claim 1, wherein: The side wall of the tooling block (13) is provided with a positioning groove (131). A positioning slider (14) is slidably arranged on the frame (1), and the sliding direction is perpendicular to the moving direction of the tooling block (13). During the process of the transfer block (241) adsorbing and transferring the pole piece (71), the magnetic sheet (72) or the magnetic bowl (73), the positioning slider (14) is inserted into the positioning groove (131).

3. The full-automatic loudspeaker magnetic circuit production line according to claim 1, characterized in that: The dispensing mechanism (3) further includes a glue injection frame (32) and a cleaning assembly. The cleaning assembly includes a cleaning box (33) and a cleaning sponge. The cleaning box (33) is connected to the frame (1), and the cleaning sponge is located in the cleaning box (33). The glue injection frame (32) is used to control the movement of the glue injection needle (31) relative to the frame (1) and insert the needle tip of the glue injection needle (31) into the cleaning sponge.

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