A production process for electric toothbrush

Abstract

The present invention relates to the technical field of electric toothbrushes, and in particular to an electric toothbrush production process, comprising the following steps: A. loading bristles into holes of a fixed plate; B. vibrating and screening the fixed plate; C. hot-melting the fixed plate that has been vibrated and screened so that the bristles are bonded to the fixed plate to form a brush head; D. welding and laser engraving the brush head and the brush shell to form a product; E. forming a brush handle with a main unit; F. aligning and assembling the brush handle with the product; wherein steps A-D and E can be performed simultaneously. The present invention inserts bristles into holes of a fixed plate, vibrates and screens the bristles to adjust their posture, and then hot-melts the bristles so that the fixed plate and the bristles are bonded, thereby achieving the effect of efficiently and neatly loading the bristles and improving efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of electric toothbrushes, in particular to a production process of electric toothbrushes. Background Art

[0002] Compared with traditional toothbrushes, electric toothbrushes have a self-vibrating function, so they are more and more popular. In the production of electric toothbrushes, the brush handle and the brush head are usually formed separately and then assembled. In the process of forming the brush head, the fixation of the bristles is a very important step. In the existing technology, this step is mostly done manually, resulting in very low efficiency. Summary of the invention

[0003] In view of the problems of the prior art, the present invention provides an electric toothbrush production process, which realizes the production of fully automatic toothbrushes and effectively improves efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides an electric toothbrush production process, comprising the following steps:

[0006] A. Install the bristles into the holes of the fixed plate;

[0007] B. Perform vibrating screening on the fixed plate;

[0008] C. hot-melt the fixed plate after the vibration screening treatment so that the bristles are bonded to the fixed plate to form a brush head;

[0009] D. Weld and laser engrave the brush head and brush shell to form a product;

[0010] E. Molding brush handle with main machine;

[0011] F. Assemble the brush handle and the product in position;

[0012] Among them, steps AD and step E can be performed simultaneously.

[0013] Furthermore, step A specifically includes:

[0014] Carry multiple fixed plates simultaneously through the carrier;

[0015] The automatic positioning mechanism is used to control the carrier to move to a specific coordinate;

[0016] Inserting bristles into multiple fixed plates on the carrier simultaneously through a bristle inserting mechanism;

[0017] The insertion action is maintained for a time t, and then the insertion mechanism is controlled to reset, and then the carrier is transferred to execute step B.

[0018] Furthermore, a wool insertion device for performing step A is provided, the wool insertion device comprising a wool insertion machine base, a transmission mechanism, a wool insertion mechanism and a recovery mechanism all arranged on the wool insertion machine base, the transmission mechanism comprising a driving module, a movable seat and two automatic alignment mechanisms arranged on the movable seat, the driving module being used to drive the movable seat to move back and forth so that the two automatic alignment mechanisms alternately enter the wool insertion mechanism;

[0019] The recovery mechanism is used to remove and recover the bristles on the carrier before inserting the bristles into the fixed plate.

[0020] Furthermore, the carrier is provided with a plurality of fixing grooves for supporting the fixing plate; a plurality of limiting grooves are provided at the bottom of the fixing grooves, each limiting groove is connected with each hole position on the fixing plate in a one-to-one correspondence, and the height of each limiting groove is adapted to the preset height of the bristles relative to the fixing plate.

[0021] Furthermore, step B specifically includes:

[0022] Place the carrier on the vibrating screen;

[0023] The vibrating screen drives the carrier to vibrate so that the bristles in each hole of the fixed plate are inserted into the limiting groove and abut against the bottom of the limiting groove;

[0024] The height of the bristles on each fixed plate is detected by a visual device. If the height of all the bristles meets the requirements, the carrier is transferred to step C. Otherwise, the bristles that do not meet the height requirements are sorted and then step C is performed.

[0025] Furthermore, the arranging of the bristles that do not meet the height requirements specifically includes:

[0026] Obtain the position of bristles that do not meet height requirements;

[0027] The cutting mechanism is used to trim the bristles that do not meet the height requirements;

[0028] The carrier is vibrated for the second time by using a vibrating screen so that the debris generated by the trimming falls into the limiting groove.

[0029] Furthermore, the limiting grooves in the same fixing plate are connected, and the carrier is provided with a hot melt hole for accommodating the electric heating wire;

[0030] Step C specifically includes:

[0031] C1. Insert the heating wire into the hot melt hole to heat-melt the bottom of the bristles;

[0032] C2. Covering the top of the carrier with a top cover, wherein the top cover has a groove adapted to the distribution of bristles;

[0033] C3. Flip the top cover and the carrier so that the top cover supports each fixing plate and maintains the posture of the bristles;

[0034] C4. Remove the carrier from just above the top cover so that the bottom of the bristles that are hot-melted face upwards;

[0035] C5. The bottom of the bristles is hot-melted for a second time, so that the bottom of the bristles is hot-melted and bonded to the fixing plate to form a brush head;

[0036] C6. Move the brush head to execute step D;

[0037] Wherein, steps C1 and C2 are executed simultaneously.

[0038] Furthermore, step C5 specifically includes:

[0039] C51. Press the hot-melted bottom of the bristles down through a high-temperature pressure head and maintain the preset time;

[0040] C52. Control the high temperature pressure head to leave the fixed plate;

[0041] C53. Use the robot to pick up the top cover and transfer it to the return mechanism, use the return mechanism to transfer the top cover to the position for executing C2, and drive the top cover to flip and pour out the brush head during the transfer process.

[0042] Furthermore, a hot melt device for performing step C is provided, the hot melt device comprising a wire inserting mechanism, a capping mechanism, a flipping mechanism, a carrier taking mechanism, a hot pressing mechanism, a return mechanism and a material unloading module.

[0043] The wire insertion mechanism includes a wire insertion driving member, a plug board, and a plurality of electric heating wires arranged on the plug board. The wire insertion driving member is used to drive the plug board to move back and forth, and the plug board is used to drive the plurality of electric heating wires to be inserted into the hot melt hole at the same time.

[0044] The cover installation mechanism is used to install the top cover to the top of the carrier;

[0045] The flipping mechanism is used to clamp the carrier equipped with the top cover and then flip it;

[0046] The carrier removal mechanism is used to control the carrier to detach from the top cover, and then transfer the carrier to perform step A;

[0047] The hot pressing mechanism includes a hot pressing head and a hot pressing lifting member, wherein the hot pressing lifting member is used to drive the hot pressing head to rise and fall, and the hot pressing head is used to contact with the top cover and heat-melt the bristles of the fixed plate on the top cover;

[0048] The return mechanism includes a picking robot, a lifting module, a rotating channel, a return channel and a vibration module. The picking robot is used to transfer the top cover to the lifting module. The lifting module is used to transfer the top cover to the rotating channel. The rotating channel is used to flip the top cover during the transfer of the top cover. The bottom of the return channel is connected to a material discharge slide. The vibration module is used to drive the top cover in the return channel to vibrate, so that the brush head in the top cover falls into the material discharge mold due to the vibration.

[0049] The wire inserting mechanism, cover installing mechanism, carrier removing mechanism and hot pressing mechanism are all provided with a positioning module for positioning the carrier / top cover.

[0050] Further, a welding laser engraving device for performing step D is provided, the welding laser engraving device comprising a body, a turntable mechanism, a positioning mechanism, an ultrasonic welding mechanism, a laser engraving mechanism and a material discharge mechanism all arranged on the body, the turntable mechanism is provided with a plurality of jigs, and the positioning mechanism, the ultrasonic welding mechanism, the laser engraving mechanism and the material discharge mechanism are arranged along the rotation direction of the turntable mechanism;

[0051] The positioning mechanism is used to position the brush head and brush shell to be welded on the jig, the ultrasonic welding mechanism is used to weld the brush head and brush shell to form a product, the laser engraving mechanism is used to flip the product over for laser engraving, and the unloading mechanism is used to unload the product after laser engraving.

[0052] The beneficial effects of the present invention are as follows: after the bristles are inserted into the holes of the fixing plate, the bristles are subjected to a vibration screening process to adjust their posture, and then the bristles are subjected to a hot-melt process to bond the fixing plate to the bristles, thereby achieving the effect of efficiently and neatly loading the bristles and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a flow chart of the present invention.

[0054] Figure 2 The figure is a schematic diagram of a system to which the present invention is applied.

[0055] Figure 3 for Figure 2 Detailed schematic diagram of the middle hair insertion device.

[0056] Figure 4 It is a schematic diagram of the fixing groove of the carrier described in the present invention.

[0057] Figure 5 for Figure 2 A specific schematic diagram of the vibrating screen device in FIG.

[0058] Figure 6 for Figure 2 The specific schematic diagram of the return mechanism and the unloading module is hidden in the hot melt device.

[0059] Figure 7for Figure 6 Internal schematic diagram of the mid-flip seat.

[0060] Figure 8 It is a schematic diagram of the return mechanism and the unloading module in the hot melt device.

[0061] Fig. 9 It is a schematic diagram of the welding laser engraving equipment described in the present invention.

[0062] Fig.10 It is a schematic diagram of the positioning mechanism of the present invention.

[0063] Fig.11 It is a schematic diagram of the cooperation between the moving mechanism and the clamping manipulator described in the present invention.

[0064] Figure numerals: 1-carrier, 2-wool insertion device, 3-vibrating screen device, 4-hot melt device, 5-welding laser engraving equipment, 6-fixed plate, 11-fixed groove, 12-limiting groove, 13-hot melt hole, 21-transmission mechanism, 22-wool insertion mechanism, 23-recovery mechanism, 24-driving module, 25-movable seat, 26-automatic alignment mechanism, 31-vibrating screen, 32-visual device, 33-cutting mechanism, 41-wire insertion mechanism, 42-covering mechanism, 43-turning mechanism, 44-carrier removal mechanism, 45-hot pressing mechanism, 46-returning mechanism, 47-feeding module, 48-positioning module, 51-machine body, 52-turntable mechanism, 53-positioning mechanism, 54-ultrasonic welding mechanism, 55-laser engraving mechanism, 56-feeding mechanism, 61-hole position, 411-wire insertion drive member, 412-insertion Plate, 413—heating wire, 431—turning seat, 432—turning driving member, 433—first transmission module, 434—second transmission module, 435—first pressing module, 436—second pressing module, 451—hot pressing head, 452—hot pressing lifting member, 461—picking robot, 462—lifting module, 463—rotation channel, 464—return channel, 465—vibration module, 531—loading rack, 532—pneumatic finger, 533—positioning member, 534—connecting part, 535—positioning part, 541—ultrasonic generator, 542—welding lifting module, 551—laser transmitter, 552—moving mechanism, 553—clamping manipulator, 555—lifting module, 556—turning module, 561—unloading slide, 562—clamping module, 563—translation module. DETAILED DESCRIPTION

[0065] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0066] like Figures 1 to 11As shown, the present invention provides an electric toothbrush production process, comprising the following steps:

[0067] A. Insert the bristles into the hole 61 of the fixing plate 6;

[0068] B. Performing vibrating screening on the fixed plate 6;

[0069] C. hot-melt the fixed plate 6 after the vibration screening process, so that the bristles are bonded to the fixed plate 6 to form a brush head;

[0070] D. Weld and laser engrave the brush head and brush shell to form a product;

[0071] E. Molding brush handle with main machine;

[0072] F. Assemble the brush handle and the product in position;

[0073] Among them, steps AD and step E can be performed simultaneously.

[0074] In actual use, this embodiment also provides an electric toothbrush production system, which at least includes a hair insertion device 2 for performing step A, a vibrating screen device 3 for performing step B, a thermal device for performing step C, a welding laser engraving device for performing step D, and a plurality of carriers 1 for accommodating fixed plates 6.

[0075] That is, the present invention realizes the integration of processes, such as inserting bristles into the fixed plate 6, arranging the bristles on the fixed plate 6, hot-melting the bristles and the fixed plate 6 to melt the bristles and bond them together, assembling the brush head and the brush shell and then welding and laser engraving, etc., which are all realized automatically, reducing manual participation, which is beneficial to improving production efficiency and reducing labor costs.

[0076] In this embodiment, step A specifically includes:

[0077] The carrier 1 carries multiple fixed plates 6 at the same time;

[0078] The automatic alignment mechanism 26 controls the carrier 1 to move to a specific coordinate;

[0079] Insert the bristles into the multiple fixing plates 6 on the carrier 1 at the same time through the bristle inserting mechanism 22;

[0080] The insertion action is maintained for a time t, and then the insertion mechanism 22 is controlled to reset, and then the carrier 1 is transferred to execute step B.

[0081] In actual use, the above-mentioned maintenance time t is preferably 1-3 seconds, that is, one carrier 1 can support multiple fixed plates 6 at the same time, and the hair insertion device 2 can insert the hair of multiple fixed plates 6 at the same time; after the bristles are inserted into the fixed plate 6, the hair insertion device 2 keeps the action of inserting the bristles into the fixed plate 6 for 1-3 seconds to ensure the stability of the bristles, and then the hair plucking device can be allowed to leave the fixed plate 6, and ensure that each bristle is stably inserted into the hole 61 of the fixed plate 6.

[0082] Specifically, the above-mentioned wool insertion device 2 includes a wool insertion machine base, a transmission mechanism 21, a wool insertion mechanism 22 and a recovery mechanism 23 all arranged on the wool insertion machine base, the transmission mechanism 21 includes a driving module 24, a movable seat 25 and two automatic alignment mechanisms 26 arranged on the movable seat 25, and the driving module 24 is used to drive the movable seat 25 to move back and forth so that the two automatic alignment mechanisms 26 alternately enter the wool insertion mechanism 22;

[0083] The recovery mechanism 23 is used to remove and recover the bristles on the carrier 1 before inserting the bristles into the fixing plate 6 .

[0084] That is, the wool insertion device 2 has two workstations: when one workstation is located at the wool insertion mechanism 22 for wool insertion, the other workstation is outside the wool insertion mechanism 22, and the robot transfers the carrier 1 to the other workstation, and the automatic alignment mechanism 26 of the workstation adjusts the position of the carrier 1; when the wool insertion is completed, the transmission mechanism 21 is activated to control the movable seat 25 to move, and then the one workstation moves outside the wool insertion mechanism 22, and the other workstation enters the wool insertion mechanism 22, so that the wool insertion operation is more efficient.

[0085] It should be noted that the bristle insertion mechanism 22 is a conventional structure in this field, which is used to stand up multiple bristles of substantially the same length and insert them into the hole 61 by pressing. Before each bristle insertion, the recovery mechanism 23 recovers the bristles left on the work station due to the previous bristle insertion, and the recovery mechanism 23 preferably uses vacuum extraction to attract the bristles.

[0086] In this embodiment, the carrier 1 is provided with a plurality of fixing grooves 11, which are used to support the fixing plate 6; a plurality of limiting grooves 12 are provided at the bottom of the fixing grooves 11, and each limiting groove 12 is connected to each hole position 61 on the fixing plate 6 in a one-to-one correspondence, and the height of each limiting groove 12 is adapted to the preset height of the bristles relative to the fixing plate 6.

[0087] That is, by making the heights of different fixing grooves 11 not completely the same, when each bristle is loaded into the carrier 1 and contacts the fixing groove 11, the height of the part of the bristle located above the fixing plate 6 is different, so that the distribution of the bristles on the brush head meets the preset requirements; the part of the bristles located below the fixing plate 6 is melted and bonded to the fixing plate 6 by subsequent hot melt treatment, thereby ensuring that the bristles are not separated from the fixing plate 6, and also ensuring that the hole 61 is not water-permeable due to the hot-melt bristles.

[0088] In this embodiment, the vibrating screen device 3 includes a vibrating screen machine, a visual device 32 and a cutting mechanism 33, and step B specifically includes:

[0089] Place the carrier 1 on the vibrating screen 31;

[0090] The carrier 1 is driven to vibrate via the vibrating screen 31 so that the bristles in each hole 61 of the fixing plate 6 are inserted into the limiting groove 12 and abut against the bottom of the limiting groove 12;

[0091] The visual device 32 is used to detect the height of the bristles on each fixing plate 6. If the height of all the bristles meets the requirements, the carrier 1 is transferred to execute step C. Otherwise, the bristles that do not meet the height requirements are sorted and then step C is executed.

[0092] Specifically, the arranging of the bristles that do not meet the height requirements includes:

[0093] Obtain the position of bristles that do not meet height requirements;

[0094] The bristles that do not meet the height are trimmed by the cutting mechanism 33;

[0095] The vibrating screen 31 is used to perform secondary vibration on the carrier 1 so that the debris generated by the trimming falls into the limiting groove 12 .

[0096] That is, the carrier 1 is placed on a vibrating screen and vibrated under the control of the vibrating screen, so that the bristles in each hole 61 can adjust their posture under the vibration, so that all of them are in an upright state; but due to the height difference between different bristles (due to defects in the bristle production process), some bristles may be longer and exceed the preset range. The present invention uses a cutting mechanism 33 to cut them. The cutting mechanism 33 is preferably composed of a conventional rotating cutter controlled by a flexible robot, which can trim the bristles with high precision and avoid product scrapping due to excessive trimming; the debris formed after trimming falls into the limiting groove 12 and is melted by the subsequent hot melt part to serve as a part of the bonding between the bristles and the fixed plate 6.

[0097] In this embodiment, the limiting grooves 12 in the same fixing plate 6 are connected, and the carrier 1 is provided with a hot melt hole 13 for accommodating the electric heating wire 413;

[0098] Step C specifically includes:

[0099] C1. Insert the heating wire 413 into the hot melt hole 13 to perform a hot melt on the bottom of the bristles;

[0100] C2. Cover the top of the carrier 1 with a top cover, wherein the top cover has a groove adapted to the distribution of bristles;

[0101] C3. Flip the top cover and the carrier 1 so that the top cover supports each fixing plate 6 and maintains the posture of the bristles;

[0102] C4. Remove the carrier 1 from directly above the top cover so that the bottom of the bristles that are hot-melted face upward;

[0103] C5. The bottom of the bristles is hot-melted for a second time, so that the bottom of the bristles is hot-melted and bonded to the fixing plate 6 to form a brush head;

[0104] C6. Move the brush head to execute step D;

[0105] That is, during hot melting, steps C1 and C2 are performed simultaneously, wherein the hot melting of the heating wire 413 only realizes preliminary hot melting, so that the part of the bristles located below the fixed plate 6 and possible debris are bonded to each other to ensure the stability of the position and posture of the bristles, and the top cover is installed at the same time to further reduce the overall time of the hot melting step; then the top cover and the carrier 1 are flipped over, so that the top cover serves as a carrier after the fixed plate 6 is flipped over, to ensure that the subsequent hot melting can simultaneously press down the part of the bristles that are hot-melted, to avoid the part of the bristles that are hot-melted having a certain height resulting in a large space occupied by the brush head, which is conducive to the implementation of subsequent steps.

[0106] In this embodiment, step C5 specifically includes:

[0107] C51. Press the hot-melted bottom of the bristles down through a high-temperature pressure head and maintain the preset time;

[0108] C52. Control the high temperature pressure head to leave the fixed plate 6;

[0109] C53. Use a robot to pick up the top cover and transfer it to the return mechanism 46, use the return mechanism 46 to transfer the top cover to the position for executing C2, and drive the top cover to flip and pour out the brush head during the transfer process.

[0110] That is, the secondary hot melting is achieved by pressing down with a high-temperature pressure head to achieve the effect of flattening the hot-melted part of the bristles; at the same time, in order to ensure that the bristles will not be completely melted under the temperature of the high-temperature pressure head, the hot pressing time should not be too long, usually within 2 seconds; after the secondary hot melting, the return mechanism 46 returns the top cover to the position for executing step C2. During the return process, the top cover is turned over and the brush head is unloaded, so that the entire step C is carried out smoothly and the time wasted by pauses is reduced.

[0111] Specifically, the hot melt device 4 includes a wire inserting mechanism 41, a capping mechanism 42, a flipping mechanism 43, a carrier taking mechanism 44, a hot pressing mechanism 45, a return mechanism 46 and a blanking module 47.

[0112] The wire insertion mechanism 41 includes a wire insertion driving member 411, a plug board 412, and a plurality of electric heating wires 413 disposed on the plug board 412. The wire insertion driving member 411 is used to drive the plug board 412 to move back and forth, and the plug board 412 is used to drive the plurality of electric heating wires 413 to be inserted into the hot melt hole 13 at the same time.

[0113] The cover installation mechanism 42 is used to install the top cover to the top of the carrier 1;

[0114] The flipping mechanism 43 is used to clamp the carrier 1 equipped with the top cover and then flip it;

[0115] The carrier removal mechanism 44 is used to control the carrier 1 to be separated from the top cover, and then transfer the carrier 1 to the position for performing step A;

[0116] The hot pressing mechanism 45 includes a hot pressing head 451 and a hot pressing lifting member 452. The hot pressing lifting member 452 is used to drive the hot pressing head 451 to move up and down. The hot pressing head 451 is used to contact with the top cover and heat-melt the bristles of the fixing plate 6 on the top cover.

[0117] The return mechanism 46 includes a picking robot 461, a lifting module 462, a rotating channel 463, a return channel 464 and a vibration module 465. The picking robot 461 is used to transfer the top cover to the lifting module 462. The lifting module 462 is used to transfer the top cover to the rotating channel 463. The rotating channel 463 is used to flip the top cover during the transfer of the top cover. The bottom of the return channel 464 is connected to a material discharge slide 561. The vibration module 465 is used to drive the top cover in the return channel 464 to vibrate, so that the brush head in the top cover falls into the discharge die 47 due to the vibration.

[0118] The wire inserting mechanism 41 , the cover installing mechanism 42 , the carrier 1 removal mechanism, and the hot pressing mechanism 45 are all provided with a positioning module 48 for positioning the carrier 1 / the top cover.

[0119] In actual use, the structure of the positioning module 48 is basically the same as that of the automatic docking mechanism. It should be noted that after the top cover is placed in the lifting module 462 by the picking robot 461, it is lifted to a certain height by the lifting module 462 and then enters the rotating channel 463; the top cover will flip when it is located in the rotating channel 463, but since the height of the rotating channel 463 is basically the same as the height of the carrier 1, it can reliably ensure that the brush head will not fall out of the top cover during the flipping of the carrier 1; after flipping, the top cover is transferred along the return channel 464 to the position for executing step C2. The rotating channel 463 is preferably composed of two belt transmission modules, that is, there is an empty space in the middle of the two belt transmission modules, and the vibration module 465 drives the top cover to vibrate or knock, so as to ensure that the brush head in the top cover can fall into the unloading module 47 for collecting the brush head through the empty space, thereby achieving the effect of efficient unloading.

[0120] At the same time, since the return mechanism 46 has a certain length, the brush head inside it is sufficiently cooled during the top cover transmission process. Therefore, the present invention does not need to specially set up a cooling device and can also ensure the cooling effect of the brush head.

[0121] In the present embodiment, the flipping mechanism 43 includes a flipping seat 431, a flipping driving member 432, a first transmission module 433, a second transmission module 434, a first pressing module 435 and a second pressing module 436, all of which are arranged on the flipping seat 431, wherein a channel for allowing the top cover and the carrier 1 to pass through is provided between the first transmission module 433 and the second transmission module 434, and the first pressing module 435 and the second pressing module 436 clamp the top cover and the carrier 1 located between the first transmission module 433 and the second transmission module 434, and then the flipping driving member 432 drives the flipping seat 431 to flip 180°, and then the first transmission module 433 and the second transmission module 434 cooperate to transfer the flipped top cover and the carrier 1 to the hot pressing mechanism 45, and the carrier removing mechanism 44 removes the carrier 1 from the top cover to perform the hot pressing action.

[0122] The first transmission module 433 and the second transmission module 434 are preferably transmission belt modules, and the first holding module 435 and the second holding module 436 are preferably modules with cylinders as power sources. The carrier taking mechanism 44 is preferably a robot. After the carrier 1 is taken off the top cover, the carrier taking mechanism 44 flips it over and puts it into the corresponding AGV trolley, and the AGV trolley moves the carrier 1 to the position for executing step A.

[0123] In addition, the carrier taking mechanism 44 is preferably a flexible robot, which, in addition to taking the carrier 1, also takes into account the transfer of the flipped carrier 1 and the top cover from the flipping machine 43 to the hot pressing mechanism 45 for hot pressing.

[0124] In this embodiment, the welding laser engraving device includes a body 51, a turntable mechanism 52, a positioning mechanism 53, an ultrasonic welding mechanism 54, a laser engraving mechanism 55 and a material discharge mechanism 56 all arranged on the body 51, the turntable mechanism 52 is provided with a plurality of carriers 1, and the positioning mechanism 53, the ultrasonic welding mechanism 54, the laser engraving mechanism 55 and the material discharge mechanism 56 are arranged along the rotation direction of the turntable mechanism 52;

[0125] The positioning mechanism 53 is used to position the brush head and brush shell to be welded on the carrier 1, the ultrasonic welding mechanism 54 is used to weld the brush head and the brush shell to form a product, the laser engraving mechanism 55 is used to flip the product and then perform laser engraving, and the unloading mechanism 56 is used to unload the product after laser engraving.

[0126] In actual use, there are four carriers 1, and the four carriers 1 are distributed on the top of the turntable mechanism 52 in a circular array with the center of the turntable mechanism 52. When working, the positioning mechanism 53 is first operated to form a channel directly above the carrier 1, and then the staff or the robot puts the brush shell and the brush head into the carrier 1 along the channel in sequence; then the positioning mechanism 53 is reset and the turntable mechanism 52 is rotated, so that the brush shell and the brush head are rotated to the ultrasonic welding mechanism 54, and the ultrasonic welding mechanism 54 ultrasonically welds the brush shell and the brush head to form an integrated product; then the turntable mechanism 52 is rotated to rotate the product to the laser engraving mechanism 55, and the laser engraving mechanism 55 flips the product to the brush shell facing upward for laser engraving; finally, the turntable mechanism 52 is rotated to move the product to the unloading mechanism 56, and the unloading mechanism 56 unloads the product.

[0127] The utility model can complete ultrasonic welding and laser engraving of products, and the whole process can be realized by automation, thereby improving efficiency.

[0128] In this embodiment, the positioning mechanism 53 includes a loading rack 531, a pneumatic finger 532 installed on the loading rack 531, and two positioning members 533 respectively installed on the two output ends of the pneumatic finger 532. The two positioning members 533 are arranged opposite to each other. The pneumatic finger 532 is used to drive the two positioning members 533 to move closer to or away from each other. The two positioning members 533 are used together to clamp and position the brush head and brush shell to be welded on the carrier 1.

[0129] That is, the utility model forms a channel through the cooperation of two positioning parts 533, so that the staff or the external robot can put the brush head and the brush shell into the carrier 1 along the channel, thereby achieving the positioning effect and ensuring that the brush head and the brush shell are assembled in the carrier 1 at one time to facilitate subsequent welding.

[0130] Specifically, the positioning member 533 includes a connecting portion 534 and a positioning portion 535, the top of the connecting portion 534 is mounted on the output end of the pneumatic finger 532, the positioning portion 535 is arranged at the bottom of the connecting portion 534 close to one end of another positioning member 533, and the connecting portion 534 and the positioning portion 535 are perpendicular to each other. That is, the connecting portion 534 and the positioning portion 535 form an "L" structure to ensure that the distance between the two positioning portions 535 is small, and a channel with a width that just meets the requirements can be formed under the drive of the pneumatic finger 53232.

[0131] In this embodiment, the ultrasonic welding mechanism 54 includes an ultrasonic generator 541 and a welding lifting module 555542. The welding lifting module 555542 is installed on the body 51. The ultrasonic generator 541 is located directly above the turntable mechanism 52. The welding lifting module 555542 is used to drive the ultrasonic generator 541 to rise and fall.

[0132] Specifically, the welding lifting module 555542 is preferably a conventional linear module with a cylinder or a motor as a power source. When working, the welding lifting module 555542 drives the ultrasonic generator 541 to descend, and the ultrasonic generator 541 contacts the welding position of the brush head (mainly the periphery of the bristles) and continuously applies pressure to achieve a secondary assembly effect between the brush head and the brush shell; when the ultrasonic generator 541 descends to a preset height, the ultrasonic generator 541 works, and ultrasonic waves are used to weld the plastic brush head and the brush shell, thereby ensuring that the brush head and the brush shell will not separate.

[0133] In this embodiment, the laser engraving mechanism 55 includes a laser emitter 551, a moving mechanism 552 and a clamping robot 553. The laser engraving generator and the moving mechanism 552 are both installed on the body 51. The moving mechanism 552 is used to drive the clamping robot 553 to move; the clamping robot 553 is used to clamp and flip the product, the laser emitter 551 is used to laser engrave the flipped product, and the clamping robot 553 is also used to put the laser engraved product back into the carrier 1.

[0134] In actual use, the moving mechanism 552 includes a lifting module 555 and a flipping module 556. The lifting module 555 is used to drive the clamping robot 553 to lift and lower, and the flipping module 556 is used to drive the clamping robot 553 to flip around the horizontal line.

[0135] The lifting module 555 is preferably a conventional linear drive module 24, and the flip module 556 can be a motor, a rotary cylinder, etc. The flip module 556 is installed at the output end of the lifting module 555, and the clamping manipulator 553 is installed at the output end of the flip module 556. Since laser engraving is performed on the back of the brush shell, the utility model cooperates with the lifting module 555 and the flip module 556, specifically: the lifting module 555 controls the clamping manipulator 553 to descend to the two sides of the product in the carrier 1, and then the clamping manipulator 553 clamps the product and rises a certain distance driven by the lifting module 555, and then the clamping manipulator 553 drives the product to flip, and then the laser transmitter 551 performs laser engraving on the product clamped by the clamping manipulator 553, and finally the clamping manipulator 553 puts the laser engraved product back into the carrier 1, and the whole process is automated, which improves efficiency.

[0136] In this embodiment, the unloading mechanism 56 includes a unloading slide 561, a clamping module 562 and a translation module 563. The translation module 563 is used to drive the clamping module 562 to move back and forth. The clamping module 562 is used to pick up the laser-engraved product on the carrier 1 and transfer the product to the unloading slide 561. The unloading slide 561 is used to guide the product to slide into an external container.

[0137] The clamping module 562 is preferably powered by a finger cylinder, and the translation module 563 is a conventional linear drive module 24, that is, the translation module 563 drives the clamping module 562 to move to the carrier 1, picks up the product through the clamping module 562 and moves to the unloading slide 561 under the drive of the translation module 563, and the clamping module 562 puts the product into the unloading slide 561, allowing the product to move along the unloading slide 561 under the action of gravity to an external container for storage.

[0138] Of course, in order to minimize interference between actions, the unloading mechanism 566 may also include a module (not shown in the figure) for driving the clamping module 562 to rise and fall.

[0139] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A production process for an electric toothbrush, characterized in that: The following steps are involved: A. Install the bristles into the holes of the fixed plate; B. Perform vibrating screening on the fixed plate; C. hot-melt the fixed plate after the vibration screening treatment so that the bristles are bonded to the fixed plate to form a brush head; D. Weld and laser engrave the brush head and brush shell to form a product; E. Molding brush handle with main machine; F. Assemble the brush handle and the product in position; Wherein, steps AD and step E can be performed simultaneously; The carrier is provided with a plurality of fixing grooves, which are used to hold the fixing plate; a plurality of limiting grooves are provided at the bottom of the fixing grooves, which are connected with the limiting grooves in the same fixing plate, and each limiting groove is connected with each hole position on the fixing plate in a one-to-one correspondence, and the height of each limiting groove is adapted to the preset height of the bristles relative to the fixing plate; The carrier is provided with a hot melt hole for accommodating the electric heating wire; Step C specifically includes: C1. Insert the heating wire into the hot melt hole to heat-melt the bottom of the bristles; C2. Covering the top of the carrier with a top cover, wherein the top cover has a groove adapted to the distribution of bristles; C3. Flip the top cover and the carrier so that the top cover supports each fixing plate and maintains the posture of the bristles; C4. Remove the carrier from just above the top cover so that the bottom of the bristles that are hot-melted face upwards; C5. The bottom of the bristles is hot-melted for a second time, so that the bottom of the bristles is hot-melted and bonded to the fixing plate to form a brush head; C6. Move the brush head to execute step D; Wherein, steps C1 and C2 are performed simultaneously; Step C5 specifically includes: C51. Press the hot-melted bottom of the bristles down through a high-temperature pressure head and maintain the preset time; C52. Control the high temperature pressure head to leave the fixed plate; C53. Use the robot to pick up the top cover and transfer it to the return mechanism, use the return mechanism to transfer the top cover to the position for executing C2, and drive the top cover to flip and pour out the brush head during the transfer process.

2. The electric toothbrush production process according to claim 1, characterized in that: Step A specifically includes: Carry multiple fixed plates simultaneously through the carrier; The automatic positioning mechanism is used to control the carrier to move to a specific coordinate; Inserting bristles into multiple fixed plates on the carrier simultaneously through a bristle inserting mechanism; The insertion action is maintained for a time t, and then the insertion mechanism is controlled to reset, and then the carrier is transferred to execute step B.

3. The electric toothbrush production process according to claim 2, characterized in that: A wool insertion device for performing step A is provided, the wool insertion device comprising a wool insertion machine base, a transmission mechanism, a wool insertion mechanism and a recovery mechanism all disposed on the wool insertion machine base, the transmission mechanism comprising a driving module, a movable seat and two automatic alignment mechanisms disposed on the movable seat, the driving module being used to drive the movable seat to move back and forth so that the two automatic alignment mechanisms alternately enter the wool insertion mechanism; The recovery mechanism is used to remove and recover the bristles on the carrier before inserting the bristles into the fixed plate.

4. The electric toothbrush production process according to claim 1, characterized in that: Step B specifically includes: Place the carrier on the vibrating screen; The vibrating screen drives the carrier to vibrate so that the bristles in each hole of the fixed plate are inserted into the limiting groove and abut against the bottom of the limiting groove; The height of the bristles on each fixed plate is detected by a visual device. If the height of all the bristles meets the requirements, the carrier is transferred to step C. Otherwise, the bristles that do not meet the height requirements are sorted and then step C is performed.

5. The electric toothbrush production process according to claim 4, characterized in that: The finishing of the bristles that do not meet the height requirements specifically includes: Obtain the position of bristles that do not meet height requirements; The cutting mechanism is used to trim the bristles that do not meet the height requirements; The carrier is vibrated for the second time by using a vibrating screen so that the debris generated by the trimming falls into the limiting groove.

6. The electric toothbrush production process according to claim 1, characterized in that: A hot melt device for performing step C is provided, the hot melt device comprising a wire inserting mechanism, a capping mechanism, a flipping mechanism, a carrier taking mechanism, a hot pressing mechanism, a return mechanism and a blanking module, The wire insertion mechanism includes a wire insertion driving member, a plug board, and a plurality of electric heating wires arranged on the plug board. The wire insertion driving member is used to drive the plug board to move back and forth, and the plug board is used to drive the plurality of electric heating wires to be inserted into the hot melt hole at the same time. The cover installation mechanism is used to install the top cover to the top of the carrier; The flipping mechanism is used to clamp the carrier equipped with the top cover and then flip it; The carrier removal mechanism is used to control the carrier to detach from the top cover, and then transfer the carrier to perform step A; The hot pressing mechanism includes a hot pressing head and a hot pressing lifting member, wherein the hot pressing lifting member is used to drive the hot pressing head to rise and fall, and the hot pressing head is used to contact with the top cover and heat-melt the bristles of the fixed plate on the top cover; The return mechanism includes a picking robot, a lifting module, a rotating channel, a return channel and a vibration module. The picking robot is used to transfer the top cover to the lifting module. The lifting module is used to transfer the top cover to the rotating channel. The rotating channel is used to flip the top cover during the transfer of the top cover. The bottom of the return channel is connected to a material discharge slide. The vibration module is used to drive the top cover in the return channel to vibrate, so that the brush head in the top cover falls into the material discharge mold due to the vibration. The wire inserting mechanism, cover installing mechanism, carrier removing mechanism and hot pressing mechanism are all provided with a positioning module for positioning the carrier / top cover.

7. The electric toothbrush production process according to claim 1, characterized in that: A welding laser engraving device for performing step D is provided, the welding laser engraving device comprising a body, a turntable mechanism, a positioning mechanism, an ultrasonic welding mechanism, a laser engraving mechanism and a material discharge mechanism all arranged on the body, the turntable mechanism being provided with a plurality of jigs, and the positioning mechanism, the ultrasonic welding mechanism, the laser engraving mechanism and the material discharge mechanism being arranged along the rotation direction of the turntable mechanism; The positioning mechanism is used to position the brush head and brush shell to be welded on the jig, the ultrasonic welding mechanism is used to weld the brush head and brush shell to form a product, the laser engraving mechanism is used to flip the product over for laser engraving, and the unloading mechanism is used to unload the product after laser engraving.

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