A particle detection device and process for a speaker bracket after injection molding

Abstract

The present invention relates to the technical field of particle detection, and discloses a particle detection device and process after injection molding of a speaker bracket, including a device housing. A driving motor is fixedly connected to the side wall of the device housing, and an output rotating shaft is fixedly connected to the output end of the driving motor. In the present invention, the conveying turntable rotates to drive a plurality of bearing bases on the conveying belt to rotate. The bearing bases rotate and move towards the end close to the storage box. When the end of the extrusion column close to the conveying belt is extruded by the special-shaped extrusion block, the extrusion column slides inwards along the conveying belt. The extrusion column drives the first extrusion piece towards one end of the bracket, and the first extrusion piece drives the second extrusion piece on the extrusion spring to extrude one end of the bracket. Under the extrusion action of the second extrusion piece, the bracket is fixed between the two second extrusion pieces. Such a setting is beneficial to the stable movement of the bracket inside the device, avoids the sliding of the bracket during the detection process, and improves the detection stability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of particle detection equipment, and in particular to a particle detection equipment and process after injection molding of a loudspeaker bracket. Background Art

[0002] The injection molding process of the speaker stand usually includes the following steps: Design the mold: According to the shape and size of the speaker stand, design a suitable injection mold to ensure that it can be accurately molded. Prepare materials: Select suitable plastic materials (such as ABS, PC, PP, etc.) according to the needs and characteristics of the product. Heating and melting: Put the plastic particles into the injection molding machine and heat them to their molten state for subsequent injection into the mold. Injection into the mold: Inject the molten plastic into the mold cavity through the injection system to ensure uniform filling. Cooling and solidification: Wait for a period of time in the mold to allow the plastic to cool and solidify to form a fixed shape. Open the mold and take out the part: After the injection molding is completed, open the mold and take out the molded speaker stand. Post-processing: Deburr, grind, clean and other post-processing are performed on the removed bracket to meet the final quality requirements. Quality inspection: Perform quality inspection on the appearance, size and performance of the finished product to ensure that it meets the design standards.

[0003] Among them, the particle detection of the speaker bracket after injection molding is particularly important. The detection equipment under the existing technology usually needs to fix the bracket in the detection equipment during detection to ensure that the bracket does not slide in the detection equipment. However, this method can only detect the side of the bracket facing the detection equipment, so that the bracket needs to be changed and fixed for detection multiple times, which leads to low detection efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a particle detection device and process for a speaker bracket after injection molding, so as to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a particle detection device and process after the speaker bracket is injection molded, comprising a device housing, a side wall of the device housing is fixedly connected to a driving motor, an output end of the driving motor is fixedly connected to an output shaft, an end of the output shaft away from the driving motor is fixedly connected to a plurality of conveying turntables, a conveying belt is transmission-connected to the conveying turntable, a storage box is fixedly connected to the right side of the device housing, and further comprises:

[0007] Inspection load-bearing mechanism. The inspection load-bearing mechanism includes a number of load-bearing bases fixedly connected to the inner side of the conveyor belt. A number of sliding columns penetrate through the load-bearing bases in a sliding manner. One end of the sliding column far from the load-bearing base is fixedly connected to a sliding plate. Connecting columns are fixedly connected to the side walls at both ends of the sliding plate. One end of the connecting column far from the sliding plate is slidably connected to a rotating circular block. A groove is provided on one side of the rotating circular block. A load-bearing arc plate is fixedly connected to the side of the rotating circular block far from the connecting column.

[0008] Furthermore, the inspection load-bearing mechanism further includes a number of extrusion columns slidably connected to the conveyor belt. One end of the extrusion column far from the conveyor belt is fixedly connected to a first extrusion piece. A compression spring is fixedly connected to the side of the first extrusion piece far from the extrusion column. One end of the compression spring far from the first extrusion piece is fixedly connected to a second extrusion piece. Special-shaped extrusion blocks are fixedly connected to the inner walls on both sides of the equipment housing.

[0009] Furthermore, a rotary cleaning structure is provided inside the equipment housing. The rotary cleaning structure includes a gear fixedly connected to one end of the extrusion column close to the conveyor belt. A rack is fixedly connected to the inner wall of the side part of the drive motor equipment housing. A connecting frame is fixedly connected to the inner wall of the side part of the equipment housing. One end of the connecting frame far from the inner wall of the equipment housing is fixedly connected to a cleaning plate. A number of brush hairs are fixedly connected to the bottom of the cleaning plate.

[0010] Furthermore, an auxiliary detection mechanism is provided on the extrusion column. The auxiliary detection mechanism includes a first limit block fixedly connected to one end of the extrusion column close to the first extrusion piece. A push plate is slidably connected to the extrusion column. The first limit block is in contact with the push plate. Linkage rods are rotatably connected to both ends of the push plate. A return spring is sleeved on the sliding column.

[0011] Furthermore, a detection and rejection mechanism is provided directly above the equipment housing. The detection and rejection mechanism includes a detection rod fixedly connected to the inner wall of the side part of the equipment housing. A number of detection cameras are fixedly connected to the middle of the detection rod. A connecting plate is fixedly connected to the side wall of the equipment housing.

[0012] Furthermore, the detection and rejection mechanism further includes an electric telescopic rod fixedly connected to one end of the connecting plate far from the equipment housing. The detection camera is electrically connected to the electric telescopic rod. One end of the electric telescopic rod far from the connecting plate is fixedly connected to a sliding extrusion block. The sliding extrusion block is slidably connected to the special-shaped extrusion block. The sliding extrusion block and the special-shaped extrusion block are on the same horizontal line.

[0013] Furthermore, the detection and rejection mechanism further includes a second limiting block fixedly connected inside the groove of the rotating circular block. A compression spring is fixedly arranged inside the rotating circular block. One end of the compression spring is fixedly connected to the second limiting block, and the end of the compression spring away from the second limiting block is fixedly connected to the connecting column. A friction fixing rod is fixedly connected to the inner wall of the side of the equipment housing. The end of the friction fixing rod away from the inner wall of the equipment housing is fixedly connected to a friction plate. A waste box is slidably connected inside the equipment housing.

[0014] A process of a particle detection device for a speaker bracket after injection molding includes the following steps:

[0015] S1: Fixing the bracket. First, place the bracket on the bearing arc-shaped plate. Under the extrusion of the extrusion column, the extrusion column drives the first extrusion piece to extrude the second extrusion piece at one end of the extrusion spring, and the second extrusion piece extrudes one end of the bracket, so as to achieve the purpose of fixing the bracket.

[0016] S2: Cleaning the surface of the bracket. Through the meshing of the gear and the rack, the rotation of the gear drives the rotation of the bracket at one end of the extrusion column, and the surface of the bracket generates friction with the bristles at the bottom of the cleaning plate.

[0017] S3: Auxiliary detection. The first limiting block on the extrusion column drives the push plate to move. The push plate drives the sliding column at one end of the linkage rod to slide downward, and the sliding column drives the bearing arc-shaped plate to slide downward, so that the bearing arc-shaped plate is separated from the bracket, avoiding friction between the bracket and the bearing arc-shaped plate during the rotation of the bracket, and thus avoiding wear on the surface of the bracket.

[0018] S4: Detection and rejection. The detection camera detects whether there is a problem with the bracket. When the bracket needs to be rejected, the detection camera starts the electric telescopic rod. The electric telescopic rod drives the sliding extrusion block to separate from the extrusion column. At this time, the rotating circular block slides upward and contacts the friction plate. The friction plate drives the rotating circular block to rotate. The rotation of the rotating circular block drives the bearing arc-shaped plate to rotate, and the bearing arc-shaped plate rotates to pour the bracket into the waste box directly below.

[0019] The present invention has the following beneficial effects:

[0020] (1)、In the present invention, when using this detection device, first start the driving motor, and sequentially place the speaker brackets to be detected inside the bearing arc-shaped plate. The output end of the driving motor drives the conveying turntable on the output rotating shaft to rotate. The rotation of the conveying turntable drives the rotation of several bearing bases on the conveying belt. The rotation of the bearing bases moves towards the end close to the storage box. When the end of the extrusion column close to the conveying belt is extruded against the special-shaped extrusion block, the extrusion column slides inward along the conveying belt. The extrusion column drives the first extrusion piece to move towards one end of the bracket. The first extrusion piece drives the second extrusion piece on the extrusion spring to be extruded against one end of the bracket. Under the extrusion action of the second extrusion piece, the bracket is fixed between the two second extrusion pieces. Such a setting is beneficial to the stable movement of the bracket inside the device, avoids the sliding of the bracket during the detection process, and improves the detection stability of the device.

[0021] (2)、In the present invention, by setting a rotating cleaning structure, when the gear meshes with the rack, the gear rotates. The rotation of the gear drives the rotation of the extrusion column. The rotation of the extrusion column drives the rotation of the first extrusion piece. The rotation of the first extrusion piece drives the rotation of the second extrusion piece at one end of the extrusion spring. The rotation of the second extrusion piece drives the rotation of the bracket. The rotation of the bracket causes the surface of the bracket to rub against several bristles at the bottom of the cleaning plate. Such a setting is beneficial to cleaning the dust on the surface of the bracket, avoids misidentifying dust as particles during the particle detection process, and improves the detection accuracy of the device. On the other hand, the rotation of the gear driving the bracket is beneficial to the bristles at the bottom of the cleaning plate to comprehensively clean the surface of the bracket, avoiding omission of cleaning the surface of the bracket.

[0022] (3)、In the present invention, by setting an auxiliary detection mechanism, when the extrusion column and the special-shaped extrusion block are mutually extruded, the extrusion column drives the first limiting block to move inward. The first limiting block drives the push plate to move along the extrusion column towards the end close to the bracket. The push plate drives the sliding column at one end of the linkage rod to slide downward along the bearing base. At this time, the sliding column drives the sliding plate to downwardly extrude the return spring. The downward movement of the sliding plate drives the rotating circular block at one end of the connecting column to move downward. The downward movement of the rotating circular block drives the bearing arc-shaped plate to move downward. The downward movement of the bearing arc-shaped plate disengages from the bottom of the bracket. Such a setting is beneficial to making the rotating bracket disengage from the bearing arc-shaped plate, avoiding friction between the rotating bracket and the bearing arc-shaped plate, thereby avoiding frictional damage to the surface of the bracket and improving the production quality of the bracket.

[0023] (4) In the present invention, by providing a detection and rejection mechanism, when the bracket moves to the bottom of the detection camera, the detection camera detects and determines through a computer whether there are any injection molding particles remaining on the surface of the bracket. When it is detected that the bracket has a quality defect, the program controls the electric telescopic rod to contract. The contraction of the electric telescopic rod drives the sliding extrusion block to move towards the outside of the equipment housing. At this time, the sliding extrusion block disengages from the mutual extrusion with the extrusion column. At this time, the extrusion column slides outwards, driving the extrusion piece II on the extrusion spring to disengage from both ends of the bracket. The bracket falls back into the inner part of the bearing arc plate. Under the elastic return action of the return spring, the sliding plate drives the bearing arc plate on the rotating circular block to move upwards. At this time, the rotating circular block comes into contact with the friction plate at one end of the friction fixing rod. Under the friction action of the friction plate, the rotating circular block drives the bearing arc plate to rotate. At this time, the rotating circular block rotates around the connecting column, and the bearing arc plate rotates to pour the bracket into the waste box directly below, thereby realizing the rejection of defective products.

[0024] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 Schematic diagram of the overall structure of the present invention;

[0027] Figure 2 Schematic diagram of the partial structure of the present invention;

[0028] Figure 3 Schematic diagram of the inspection and bearing mechanism structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged view of A in;

[0030] Figure 5 Schematic diagram of the rotary cleaning structure of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of B in;

[0032] Figure 7 Schematic diagram of the detection and rejection mechanism structure of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged view of C in;

[0034] Figure 9 This is the process flow chart of the present invention.

[0035] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0036] In the figure: 1. Equipment housing; 11. Driving motor; 12. Output rotating shaft; 13. Conveyor turntable; 14. Conveyor belt; 15. Storage box; 2. Inspection and bearing mechanism; 201. Bearing base; 202. Sliding column; 203. Sliding plate; 204. Connecting column; 205. Rotating round block; 206. Bearing arc plate; 207. Extrusion column; 208. First extrusion piece; 209. Extrusion spring; 210. Second extrusion piece; 211. Special-shaped extrusion block; 3. Rotating cleaning structure; 301. Gear; 302. Rack; 303. Connecting frame; 304. Cleaning plate; 4. Auxiliary detection mechanism; 401. First limiting block; 402. Pushing plate; 403. Linking rod; 404. Reset spring; 5. Detection and rejection mechanism; 501. Detection rod; 502. Detection camera; 503. Connecting plate; 504. Electric telescopic rod; 505. Sliding extrusion block; 506. Second limiting block; 507. Compression spring; 508. Friction fixing rod; 509. Friction plate; 510. Waste box. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Example 1, please refer to Figures 1-6 As shown, the present invention is a particle detection device and process for a speaker bracket after injection molding, including an equipment housing 1. A driving motor 11 is fixedly connected to the side wall of the equipment housing 1. The output end of the driving motor 11 is fixedly connected to an output rotating shaft 12. A plurality of conveyor turntables 13 are fixedly connected to the end of the output rotating shaft 12 away from the driving motor 11. A conveyor belt 14 is drivingly connected to the conveyor turntable 13. A storage box 15 is fixedly connected to the right side of the equipment housing 1. It further includes:

[0039] Check the bearing mechanism 2, which includes a plurality of bearing bases 201 fixedly connected to the inner side of the conveyor belt 14, a plurality of sliding columns 202 slidingly passing through the bearing base 201, an end of the sliding column 202 away from the bearing base 201 is fixedly connected to a sliding plate 203, both end side walls of the sliding plate 203 are fixedly connected to connecting columns 204, an end of the connecting column 204 away from the sliding plate 203 is slidably connected to a rotating block 205, a groove is provided on one side of the rotating block 205, and a bearing arc plate 206 is fixedly connected to the side of the rotating block 205 away from the connecting column 204.

[0040] The inspection bearing mechanism 2 also includes a plurality of extrusion columns 207 slidably connected to the conveyor belt 14, the end of the extrusion column 207 away from the conveyor belt 14 is fixedly connected to an extrusion sheet 1 208, the side of the extrusion sheet 1 208 away from the extrusion column 207 is fixedly connected to an extrusion spring 209, the end of the extrusion spring 209 away from the extrusion sheet 1 208 is fixedly connected to an extrusion sheet 210, and the inner walls of both sides of the device housing 1 are fixedly connected to special-shaped extrusion blocks 211. The function of this component is that when the detection device is used, the drive motor 11 is first started, and the speaker brackets to be detected are placed in the bearing arc plate 206 in sequence, and the output end of the drive motor 11 drives the conveyor turntable 13 on the output shaft 12 to rotate, and the conveyor turntable 13 The rotation drives several supporting bases 201 on the conveyor belt 14 to rotate, and the supporting base 201 rotates and moves toward one end close to the storage box 15. When the extrusion column 207 is close to one end of the conveyor belt 14 and is squeezed by the special-shaped extrusion block 211, the extrusion column 207 slides inward along the conveyor belt 14, and the extrusion column 207 drives the extrusion piece 1 208 to move toward one end of the bracket. The extrusion piece 1 208 drives the extrusion piece 210 on the extrusion spring 209 to be squeezed with one end of the bracket. Under the extrusion action of the extrusion piece 210, the bracket is fixed between the two extrusion pieces 210. This arrangement is conducive to the stable movement of the bracket inside the device, avoids the bracket from sliding during the detection process, and improves the detection stability of the device.

[0041] Inside the device housing 1, a rotary cleaning structure 3 is provided. The rotary cleaning structure 3 includes a gear 301 fixedly connected to one end of the extrusion column 207 close to the conveyor belt 14. A rack 302 is fixedly connected to the inner wall of the side part of the driving motor 11 and the device housing 1. A connecting frame 303 is fixedly connected to the inner wall of the side part of the device housing 1. One end of the connecting frame 303 away from the inner wall of the device housing 1 is fixedly connected to a cleaning plate 304. A plurality of bristles are fixedly connected to the bottom of the cleaning plate 304. The function of this component is to set the rotary cleaning structure 3. When the gear 301 meshes with the rack 302, the gear 301 rotates. The rotation of the gear 301 drives the extrusion column 207 to rotate. The rotation of the extrusion column 207 drives the extrusion piece one 208 to rotate. The rotation of the extrusion piece one 208 drives the extrusion piece two 210 at one end of the extrusion spring 209 to rotate. The rotation of the extrusion piece two 210 drives the bracket to rotate. The rotation of the bracket causes the surface of the bracket to rub against a plurality of bristles at the bottom of the cleaning plate 304. This setting is beneficial to cleaning the dust on the surface of the bracket, avoiding misidentifying dust as particles during the particle detection process, and improving the detection accuracy of the device. On the other hand, the rotation of the gear 301 driving the bracket is beneficial to the bristles at the bottom of the cleaning plate 304 to comprehensively clean the surface of the bracket, avoiding omission of cleaning the surface of the bracket.

[0042] Example 2, the difference feature from Example 1 is that; as Figures 1-9 shown, an auxiliary detection mechanism 4 is provided on the extrusion column 207. The auxiliary detection mechanism 4 includes a limit block one 401 fixedly connected to one end of the extrusion column 207 close to the extrusion piece one 208. A push plate 402 is slidably connected to the extrusion column 207. The limit block one 401 is in contact with the push plate 402. Linkage rods 403 are rotatably connected to both ends of the push plate 402. A return spring 404 is sleeved on the sliding column 202. The function of this component is to set the auxiliary detection mechanism 4. The extrusion column 207 and the special-shaped extrusion block 211 are mutually extruded. The extrusion column 207 drives the limit block one 401 to move inward. The limit block one 401 drives the push plate 402 to move along the extrusion column 207 towards the end close to the bracket. The push plate 402 drives the sliding column 202 at one end of the linkage rod 403 to slide downward along the bearing base 201. At this time, the sliding column 202 drives the sliding plate 203 to downwardly compress the return spring 404. The downward movement of the sliding plate 203 drives the rotating circular block 205 at one end of the connecting column 204 to move downward. The downward movement of the rotating circular block 205 drives the bearing arc plate 206 to move downward. The downward movement of the bearing arc plate 206 disengages from the bottom of the bracket. This setting is beneficial to making the rotating bracket disengage from the bearing arc plate 206, avoiding friction between the rotating bracket and the bearing arc plate 206, thereby avoiding frictional damage to the surface of the bracket and improving the production quality of the bracket.

[0043] Above the device housing 1, a detection and rejection mechanism 5 is provided. The detection and rejection mechanism 5 includes a detection rod 501 fixedly connected to the inner wall of the side of the device housing 1. Several detection cameras 502 are fixedly connected to the middle of the detection rod 501. A connecting plate 503 is fixedly connected to the side wall of the device housing 1.

[0044] The detection and rejection mechanism 5 further includes an electric telescopic rod 504 fixedly connected to one end of the connecting plate 503 away from the device housing 1. The detection camera 502 is electrically connected to the electric telescopic rod 504. One end of the electric telescopic rod 504 away from the connecting plate 503 is fixedly connected to a sliding extrusion block 505. The sliding extrusion block 505 is slidably connected to the special-shaped extrusion block 211. The sliding extrusion block 505 and the special-shaped extrusion block 211 are on the same horizontal line.

[0045] The detection and rejection mechanism 5 further includes a second limiting block 506 fixedly connected to the groove inside the rotating circular block 205. A compression spring 507 is fixedly arranged inside the rotating circular block 205. One end of the compression spring 507 is fixedly connected to the second limiting block 506. The end of the compression spring 507 away from the second limiting block 506 is fixedly connected to the connecting column 204. A friction fixing rod 508 is fixedly connected to the inner wall of the side of the device housing 1. One end of the friction fixing rod 508 away from the inner wall of the device housing 1 is fixedly connected to a friction plate 509. A waste box 510 is slidably connected inside the device housing 1. The function of this component is to set the detection and rejection mechanism 5. When the bracket moves to the bottom of the detection camera 502, the detection camera 502 detects and judges through a computer whether there are injection molding particles left on the surface of the bracket. When it is detected that the bracket has quality defects, the program controls the electric telescopic rod 504 to contract. The contraction of the electric telescopic rod 504 drives the sliding extrusion block 505 to move outward from the device housing 1. At this time, the sliding extrusion block 505 disengages from the mutual extrusion with the extrusion column 207. At this time, the extrusion column 207 slides outward to drive the second extrusion piece 210 on the extrusion spring 209 to disengage from both ends of the bracket. The bracket falls back into the bearing arc-shaped plate 206. Under the elastic return action of the return spring 404, the sliding plate 203 drives the bearing arc-shaped plate 206 on the rotating circular block 205 to move upward. At this time, the rotating circular block 205 contacts the friction plate 509 at one end of the friction fixing rod 508. Under the friction action of the friction plate 509, the rotating circular block 205 drives the bearing arc-shaped plate 206 to rotate. At this time, the rotating circular block 205 rotates around the connecting column 204, and the bearing arc-shaped plate 206 rotates to pour the bracket into the waste box 510 directly below, thereby realizing the rejection work of defective products.

[0046] A process for a particle detection device of a speaker bracket after injection molding includes the following steps:

[0047] S1: Fixed bracket. First, place the bracket on the bearing arc plate 206. Under the extrusion of the extrusion column 207, the extrusion column 207 drives the first extrusion piece 208 to extrude the second extrusion piece 210 at one end of the extrusion spring 209, and the second extrusion piece 210 extrudes one end of the bracket, so as to achieve the purpose of fixing the bracket.

[0048] S2: Cleaning the surface of the bracket. By the meshing of the gear 301 and the rack 302, the rotation of the gear 301 drives the rotation of the bracket at one end of the extrusion column 207, and the surface of the bracket generates friction with the bristles at the bottom of the cleaning plate 304.

[0049] S3: Auxiliary detection. The first limit block 401 on the extrusion column 207 drives the push plate 402 to move, the push plate 402 drives the sliding column 202 at one end of the linkage rod 403 to slide downward, and the sliding column 202 drives the bearing arc plate 206 to slide downward, so that the bearing arc plate 206 is separated from the bracket, avoiding friction between the bracket and the bearing arc plate 206 during the rotation of the bracket, and thus avoiding wear on the surface of the bracket.

[0050] S4: Detection and rejection. The detection camera 502 detects whether there is a problem with the bracket. When the bracket needs to be rejected, the detection camera 502 activates the electric telescopic rod 504, and the electric telescopic rod 504 drives the sliding extrusion block 505 to disengage from the extrusion of the extrusion column 207. At this time, the rotating block 205 slides upward and contacts the friction plate 509, the friction plate 509 drives the rotating block 205 to rotate, the rotating block 205 rotates to drive the bearing arc plate 206 to rotate, and the bearing arc plate 206 rotates to pour the bracket into the waste box 510 directly below.

[0051] A specific application of this embodiment is:

[0052] When using this detection device, first start the driving motor 11, and sequentially place the speaker brackets to be detected inside the bearing arc plate 206. The output end of the driving motor 11 drives the conveying turntable 13 on the output rotating shaft 12 to rotate. The rotation of the conveying turntable 13 drives the rotation of several bearing bases 201 on the conveying belt 14. The rotation of the bearing base 201 moves towards the end close to the storage box 15. When the end of the extrusion column 207 close to the conveying belt 14 is extruded against the special-shaped extrusion block 211, the extrusion column 207 slides inward along the conveying belt 14. The extrusion column 207 drives the first extrusion piece 208 to move towards one end of the bracket. The first extrusion piece 208 drives the second extrusion piece 210 on the extrusion spring 209 to be extruded against one end of the bracket. Under the extrusion action of the second extrusion piece 210, the bracket is fixed between the two second extrusion pieces 210. This setting is beneficial for the stable movement of the bracket inside the device, avoiding the sliding of the bracket during the detection process, and improving the detection stability of the device; By setting the rotary cleaning structure 3, when the gear 301 meshes with the rack 302, the gear 301 rotates. The rotation of the gear 301 drives the rotation of the extrusion column 207. The rotation of the extrusion column 207 drives the rotation of the first extrusion piece 208. The rotation of the first extrusion piece 208 drives the rotation of the second extrusion piece 210 at one end of the extrusion spring 209. The rotation of the second extrusion piece 210 drives the rotation of the bracket. The rotation of the bracket causes the surface of the bracket to rub against several bristles at the bottom of the cleaning plate 304. This setting is beneficial for cleaning the dust on the surface of the bracket, avoiding misidentifying dust as particles during the particle detection process, and improving the detection accuracy of the device. On the other hand, the rotation of the gear 301 driving the bracket is beneficial for the bristles at the bottom of the cleaning plate 304 to comprehensively clean the surface of the bracket, avoiding missing the cleaning of the bracket surface;

[0053] By setting the auxiliary detection mechanism 4, the extrusion column 207 and the special-shaped extrusion block 211 are mutually extruded. The extrusion column 207 drives the first limiting block 401 to move inward. The first limiting block 401 drives the push plate 402 to move along the extrusion column 207 towards one end close to the bracket. The push plate 402 drives the sliding column 202 at one end of the linkage rod 403 to slide downward along the bearing base 201. At this time, the sliding column 202 drives the sliding plate 203 to squeeze the return spring 404 downward. The downward movement of the sliding plate 203 drives the rotating circular block 205 at one end of the connecting column 204 to move downward. The downward movement of the rotating circular block 205 drives the bearing arc plate 206 to move downward. The downward movement of the bearing arc plate 206 disengages from the bottom of the bracket. Such a setting is beneficial to making the rotating bracket disengage from the bearing arc plate 206, avoiding friction between the rotating bracket and the bearing arc plate 206, thereby avoiding frictional damage on the surface of the bracket and improving the production quality of the bracket. By setting the detection and rejection mechanism 5, when the bracket moves to the bottom of the detection camera 502, the detection camera 502 detects and judges whether there are injection molding particles left on the surface of the bracket through a computer. When it is detected that the bracket has quality defects, the program controls the electric telescopic rod 504 to contract. The contraction of the electric telescopic rod 504 drives the sliding extrusion block 505 to move outward to the outside of the equipment shell 1. At this time, the sliding extrusion block 505 disengages from the mutual extrusion with the extrusion column 207. At this time, the extrusion column 207 slides outward to drive the second extrusion piece 210 on the extrusion spring 209 to disengage from both ends of the bracket. The bracket falls back into the bearing arc plate 206. Under the elastic return action of the return spring 404, the sliding plate 203 drives the bearing arc plate 206 on the rotating circular block 205 to move upward. At this time, the rotating circular block 205 comes into contact with the friction plate 509 at one end of the friction fixing rod 508. Under the friction action of the friction plate 509, the rotating circular block 205 drives the bearing arc plate 206 to rotate. At this time, the rotating circular block 205 rotates around the connecting column 204, and the bearing arc plate 206 rotates to pour the bracket into the waste bin 510 directly below, thereby realizing the rejection work of defective products.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A particle detection device after injection molding of a speaker bracket, comprising a device housing (1), a side wall of the device housing (1) is fixedly connected to a driving motor (11), an output end of the driving motor (11) is fixedly connected to an output shaft (12), an end of the output shaft (12) away from the driving motor (11) is fixedly connected to a plurality of conveying turntables (13), a conveying belt (14) is drivingly connected to the conveying turntable (13), and a storage box (15) is fixedly connected to the right side of the device housing (1), characterized in that: Also includes: An inspection bearing mechanism (2), the inspection bearing mechanism (2) comprising a plurality of bearing bases (201) fixedly connected to the inner side of a conveyor belt (14), a plurality of sliding posts (202) slidingly passing through the bearing bases (201), one end of the sliding post (202) away from the bearing base (201) being fixedly connected to a sliding plate (203), both end side walls of the sliding plate (203) being fixedly connected to connecting posts (204), one end of the connecting post (204) away from the sliding plate (203) being slidably connected to a rotating circular block (205), a groove being provided on one side of the rotating circular block (205), and a bearing arc plate (206) being fixedly connected to one side of the rotating circular block (205) away from the connecting post (204); The inspection bearing mechanism (2) further comprises a plurality of extrusion columns (207) slidably connected to the conveyor belt (14), wherein one end of the extrusion column (207) away from the conveyor belt (14) is fixedly connected to an extrusion sheet 1 (208); The extrusion column (207) is provided with an auxiliary detection mechanism (4), the auxiliary detection mechanism (4) comprising a limit block (401) fixedly connected to one end of the extrusion column (207) close to the extrusion sheet (208), a push plate (402) slidably connected to the extrusion column (207), the limit block (401) being in contact with the push plate (402), both ends of the push plate (402) being rotatably connected to linkage rods (403), and a return spring (404) being sleeved on the sliding column (202); The extrusion column (207) and the special-shaped extrusion block (211) are extruded against each other, and the extrusion column (207) drives the limiting block (401) to move inward, and the limiting block (401) drives the push plate (402) to move along the extrusion column (207) toward one end close to the bracket, and the push plate (402) drives the sliding column (202) at one end of the linkage rod (403) to slide downward along the bearing base (201), and at this time, the sliding column (202) drives the sliding plate (203) to squeeze the return spring (404) downward, and the sliding plate (203) moves downward to drive the rotating round block (205) at one end of the connecting column (204) to move downward, and the rotating round block (205) moves downward to drive the bearing arc plate (206) to move downward, and the bearing arc plate (206) moves downward and separates from the bottom of the bracket.

2. The particle detection device after injection molding of a speaker bracket according to claim 1, characterized in that: A side of the extrusion sheet 1 (208) away from the extrusion column (207) is fixedly connected to an extrusion spring (209), an end of the extrusion spring (209) away from the extrusion sheet 1 (208) is fixedly connected to an extrusion sheet 2 (210), and both side inner walls of the device housing (1) are fixedly connected to special-shaped extrusion blocks (211).

3. The particle detection device after injection molding of a speaker bracket according to claim 2, characterized in that: A rotating cleaning structure (3) is arranged inside the device housing (1), and the rotating cleaning structure (3) comprises a gear (301) fixedly connected to an end of an extrusion column (207) close to a conveyor belt (14); a drive motor (11) is fixedly connected to a rack (302) on the side inner wall of the device housing (1); a connecting frame (303) is fixedly connected to the side inner wall of the device housing (1); a cleaning plate (304) is fixedly connected to one end of the connecting frame (303) away from the inner wall of the device housing (1); and a plurality of bristles are fixedly connected to the bottom of the cleaning plate (304).

4. The particle detection device after injection molding of a speaker bracket according to claim 3, characterized in that: A detection and rejection mechanism (5) is arranged directly above the device housing (1), the detection and rejection mechanism (5) comprising a detection rod (501) fixedly connected to the inner wall of the side of the device housing (1), a plurality of detection cameras (502) fixedly connected to the middle of the detection rod (501), and a connecting plate (503) fixedly connected to the side wall of the device housing (1).

5. The particle detection device after injection molding of a speaker bracket according to claim 4, characterized in that: The detection and rejection mechanism (5) further comprises an electric telescopic rod (504) fixedly connected to one end of the connection plate (503) away from the device housing (1); the detection camera (502) is electrically connected to the electric telescopic rod (504); one end of the electric telescopic rod (504) away from the connection plate (503) is fixedly connected to a sliding extrusion block (505); the sliding extrusion block (505) is slidably connected to the special-shaped extrusion block (211); and the sliding extrusion block (505) and the special-shaped extrusion block (211) are located on the same horizontal line.

6. The particle detection device after injection molding of a speaker bracket according to claim 5, characterized in that: The detection and rejection mechanism (5) further comprises a second limit block (506) fixedly connected to the inside of the groove of the rotating circular block (205); a compression spring (507) is fixedly arranged inside the rotating circular block (205); one end of the compression spring (507) is fixedly connected to the second limit block (506); one end of the compression spring (507) away from the second limit block (506) is fixedly connected to the connecting column (204); a friction fixing rod (508) is fixedly connected to the inner wall of the side of the device housing (1); one end of the friction fixing rod (508) away from the inner wall of the device housing (1) is fixedly connected to a friction plate (509); and a waste box (510) is slidably connected to the inside of the device housing (1).

7. A process for detecting particles after injection molding of a speaker bracket, using the particle detection device after injection molding of the speaker bracket as claimed in claim 6, characterized in that: It includes the following steps: S1: Fixing the bracket, first placing the bracket on the load-bearing arc plate (206), under the extrusion action of the extrusion column (207), the extrusion column (207) drives the extrusion sheet 1 (208) to squeeze the extrusion sheet 2 (210) at one end of the extrusion spring (209), and the extrusion sheet 2 (210) squeezes one end of the bracket, thereby achieving the purpose of fixing the bracket; S2: cleaning the surface of the bracket, by meshing the gear (301) with the rack (302), the gear (301) rotates to drive the bracket at one end of the extrusion column (207) to rotate, and the surface of the bracket and the bristles at the bottom of the cleaning plate (304) generate friction; S3: Auxiliary detection, by driving the push plate (402) to move through the limit block (401) on the extrusion column (207), the push plate (402) drives the sliding column (202) at one end of the linkage rod (403) to slide downward, and the sliding column (202) drives the bearing arc plate (206) to slide downward, so that the bearing arc plate (206) is separated from the bracket, avoiding friction between the bracket and the bearing arc plate (206) during rotation, thereby avoiding wear on the surface of the bracket; S4: Detection and rejection. The detection camera (502) is used to detect whether there is a problem with the bracket. When the bracket needs to be rejected, the detection camera (502) starts the electric telescopic rod (504). The electric telescopic rod (504) drives the sliding extrusion block (505) to disengage from the extrusion column (207). At this time, the rotating round block (205) slides upward and contacts the friction plate (509). The friction plate (509) drives the rotating round block (205) to rotate. The rotation of the rotating round block (205) drives the bearing arc plate (206) to rotate. The bearing arc plate (206) rotates to dump the bracket into the waste bin (510) directly below.

Images