An edge trimming device for the injection molding of a toothbrush handle

Abstract

The present invention belongs to the technical field of toothbrush production, and particularly relates to an edge trimming device for injection molding of toothbrush handles, including a body component. The body component includes a conveying component, and a module component and a splitting component are arranged at the top of the conveying component; a chassis component, the chassis component includes a storage component, and a clamping component is arranged in the middle of the storage component; a grinding component, the grinding component includes a regulation component, and a trimming component is arranged at the bottom of the regulation component, and a fixing component is arranged on the left side of the inner cavity of the storage component. The invention can realize automatic demolding and automatic loading and unloading during the correction of injection-molded toothbrushes, and realizes the dual-station operation during the trimming of injection-molded toothbrushes, as well as the multi-directional regulation of toothbrushes, ensuring that all parts of the toothbrush can be trimmed. At the same time, when trimming the toothbrush, the position and angle of the grinding part can be adjusted to make the toothbrush grinding more delicate.

Description

Technical Field

[0001] The present invention belongs to the technical field of toothbrush production, and particularly relates to an edge trimming device for injection molding of toothbrush handles. Background Art

[0002] In the modern daily necessities manufacturing industry, as a daily necessity, the production efficiency and product quality of toothbrushes are crucial. Toothbrush handles are usually formed by injection molding, which has the advantages of high production efficiency, low cost, and large-scale production. However, there are often problems such as burrs and unevenness on the edges of toothbrush handles after injection molding. These defects not only affect the aesthetics of the product but may also cause harm to users during use, reducing the user experience. Therefore, edge trimming of injection-molded toothbrush handles is an essential part of the production process.

[0003] When trimming existing injection-molded toothbrushes, manual loading and unloading or demolding operations are usually relied on. This method is not only inefficient, increasing labor costs, but also difficult to ensure the accuracy and consistency of operations, thus affecting the trimming quality.

[0004] Secondly, most existing trimming devices can only perform single-station operations, that is, only one toothbrush handle can be processed at a time, which greatly limits the production efficiency. With the intensification of market competition, consumers have higher and higher requirements for product quality and production efficiency, and traditional single-station trimming devices can no longer meet market demands.

[0005] Furthermore, for the possible different trimming requirements at both ends of injection-molded toothbrushes, existing trimming devices often lack sufficient flexibility and adaptability. Different specifications and shapes of toothbrush handles require different trimming strategies and tools, while existing trimming devices often cannot provide enough adjustment space, resulting in poor trimming effects. Summary of the Invention

[0006] The purpose of the present invention is to provide an edge trimming device for injection molding of toothbrush handles, which can realize automatic demolding and automatic loading and unloading during the trimming of injection-molded toothbrushes, and achieve double-station trimming during the trimming of injection-molded toothbrushes, as well as multi-directional regulation of toothbrushes to ensure that all parts of the toothbrush can be trimmed. At the same time, the position and angle of the grinding part can be adjusted during toothbrush trimming to make the toothbrush grinding more precise.

[0007] The technical solution adopted by the present invention is specifically as follows:

[0008] An edge trimming device for injection molding of toothbrush handles includes a body assembly, the body assembly includes a conveying assembly, a module assembly is arranged on the top of the conveying assembly, and a splitting assembly is arranged on the top of the conveying assembly;

[0009] Underframe assembly, the underframe assembly includes a storage assembly arranged on the left side of the conveying assembly, and a clamping assembly is arranged in the middle of the storage assembly;

[0010] Grinding assembly, the grinding assembly includes a regulating assembly arranged on the storage assembly, the regulating assembly includes an electric guide rail four, and an electric guide rail five is arranged in the chute of the electric guide rail four, and a sliding frame is slidably connected in the inner cavity of the electric guide rail five;

[0011] A trimming assembly is arranged at the bottom of the regulating assembly, and a fixing assembly is arranged on the left side of the inner cavity of the storage assembly;

[0012] Among them, the conveying assembly is used to convey module components, the splitting assembly is used to take out the toothbrushes in the module components and send them into the storage assembly, the clamping assembly is used to clamp and flip the toothbrushes, the trimming assembly is used to trim the edges of the toothbrushes, and the position of the trimming assembly is adjusted through the regulating assembly, and the fixing assembly is used to fix the middle part of the toothbrush.

[0013] In a preferred scheme, the conveying assembly includes a bracket, conveyor belts are installed on both the front and rear sides of the bracket, crawlers are installed on both the front and rear sides in the middle of the bracket, air rods are fixedly installed on both the left and right sides in the middle of the bracket, and an anti-slip plate is fixedly connected to the output end of the air rod.

[0014] In a preferred scheme, the module component includes an injection molding block placed on the crawler, a movable plate is movably sleeved at the bottom of the inner cavity of the injection molding block, a continuous groove is opened on the bottom surface of the injection molding block, an electric guide rail one is fixedly installed at the bottom of the bracket, a slider is slidably connected in the inner cavity of the electric guide rail one, a first electric push rod is fixedly installed on the top of the slider, a top rod is fixedly installed at the top end of the first electric push rod, a limiting sleeve is fixedly installed on the top surface of the slider, and the outer ring of the top rod is movably sleeved in the inner ring at the top of the limiting sleeve.

[0015] In a preferred scheme, the splitting assembly includes an electric guide rail two fixedly installed on the top surface in the middle of the bracket, an electric guide rail three is slidably connected in the inner cavity of the electric guide rail two, a second electric push rod is arranged in the inner cavity of the electric guide rail three, a limiting plate is fixedly connected to the bottom end of the second electric push rod, a cutting knife is fixedly connected to the bottom surface of the limiting plate, and a first mechanical claw is fixedly installed on the top of the limiting plate, and the first mechanical claw is arranged above the injection molding block.

[0016] In a preferred scheme, the storage assembly includes a processing table fixedly connected to the left side of the bracket, a drainage cover is fixedly installed in the middle of the inner cavity of the processing table, and a box door is hinged to the bottom of the front of the processing table.

[0017] In a preferred embodiment, the clamping assembly includes a rotating frame rotatably connected to the middle of the inner cavity of the processing table. A first motor is fixedly installed at the rear side of the processing table, and the output shaft of the first motor is fixedly connected to the rear side of the rotating frame. A clamping rod is slidably connected to the inner cavity of the rotating frame. A second motor is fixedly installed in the inner cavity of the clamping rod. A rotating shaft is fixedly connected to the output shaft of the second motor. The outer end of the rotating shaft extends out of the clamping rod and is fixedly connected with a clamping pad. A positioning groove is formed in the inner cavity of the clamping rod. A positioning ball is slidably connected to the inner cavity of the rotating shaft. The positioning ball is movably sleeved in the positioning groove, and the bottom of the positioning ball is fixedly connected with a spring. The bottom end of the spring is fixedly connected to the bottom of the inner cavity of the rotating shaft.

[0018] In a preferred embodiment, the regulating assembly includes a fixed frame fixedly connected to the top of the processing table. A fourth electric guide rail is fixedly installed on the top of the fixed frame. A fifth electric guide rail is arranged in the sliding groove of the fourth electric guide rail. A sliding frame is slidably connected to the inner cavity of the fifth electric guide rail.

[0019] In a preferred embodiment, the trimming assembly includes a third motor fixedly connected to the top of the sliding frame. The output shaft of the third motor penetrates through the sliding frame and is fixedly connected to a rotating plate at the bottom. A third electric push rod is fixedly installed at the bottom of the rotating plate. The bottom end of the third electric push rod is fixedly connected to a mounting frame. The bottom of the mounting frame is rotatably connected to a mounting box. A fourth electric push rod is hinged to the right side of the front of the mounting box. The top of the fourth electric push rod is hinged to the top of the front of the mounting frame. A fourth motor is installed in the inner cavity of the mounting box. The output shaft of the fourth motor extends out of the mounting box and is fixedly connected with a grinding disc.

[0020] In a preferred embodiment, the fixing assembly includes a flipping rod rotatably connected to the left side of the inner cavity of the processing table. A fifth motor is fixedly installed in the left inner cavity of the processing table. The output shaft of the fifth motor is fixedly connected to the axis of the flipping rod. A second mechanical claw is fixedly installed on the bottom surface of the flipping rod.

[0021] In a preferred embodiment, electric drive guide rails are installed on both the left and right sides of the rotating frame, and the clamping rod is slidably connected in the electric drive guide rails.

[0022] The technical effects achieved by the present invention are:

[0023] The conveying component, module component and splitting component of the present invention can realize automatic demoulding and automatic loading and unloading during the correction of injection-molded toothbrushes, improving the automation and efficiency of toothbrush trimming; before toothbrush trimming, the conveying part of the conveying component sends the module part carrying the injection-molded toothbrush in the module component to the lower part of the splitting component, and then the cutting part of the splitting component descends to cut off the adhered part between the injection-molded toothbrushes. The pushing part of the module component pushes out the toothbrush, which is clamped and conveyed by the conveying part of the splitting component into the chassis component to wait for trimming. After the toothbrush trimming is completed, the conveying part of the splitting component will convey the processed toothbrush back above the module component. After a group of toothbrushes are completely processed, they can be conveyed to the subsequent process through the conveying component, thus realizing automatic demoulding and loading and unloading of injection-molded toothbrushes;

[0024] The storage component, fixing component and clamping component of the present invention can realize double-station operation during the correction of injection-molded toothbrushes and multi-directional regulation of toothbrushes, ensuring that all parts of the toothbrush can be trimmed; before trimming, the clamping part of the fixing component clamps both ends of the injection-molded toothbrush, and then quickly processes the injection-molded toothbrush. After completion, the flipping part of the fixing component controls the overall flipping of the fixing component, so that the processed injection-molded toothbrush enters another station. In this station, the toothbrush will be finely polished to improve comfort. At the same time, the clamping part of the clamping component fixes the middle part of the injection-molded toothbrush, so that both ends of the toothbrush can be loosened, and then the two end areas of the toothbrush can be corrected, ensuring the integrity and comfort of toothbrush trimming;

[0025] The regulation component and trimming component of the present invention can realize the adjustment of the position and angle of the grinding part during toothbrush trimming, so that the toothbrush grinding is more delicate and the comfort is higher; during the process of toothbrush trimming, the regulation part of the regulation component continuously adjusts the position of the correction component to make it fit the surface of the toothbrush, and the regulation part of the trimming component adjusts the overall height of the trimming component and the angle of the grinding part of the trimming component. Then the grinding part runs to grind and trim the surface of the toothbrush, thus realizing the complete grinding and trimming of the toothbrush surface and improving the integrity and comfort of trimming. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the structural schematic diagram of the conveying component of the present invention;

[0028] Figure 3 is the position schematic diagram of the module component of the present invention;

[0029] Figure 4 is the cross-sectional schematic diagram of the module component of the present invention;

[0030] Figure 5 It is the external extension effect diagram of the splitting component in the present invention;

[0031] Figure 6 It is the schematic diagram of the position of the cutting knife in the present invention;

[0032] Figure 7 It is the schematic structural diagram of the storage component in the present invention;

[0033] Figure 8 It is the sectional schematic diagram of the storage component in the present invention;

[0034] Figure 9 It is the sectional schematic diagram of the clamping rod in the present invention;

[0035] Figure 10 It is the exploded schematic diagram of the rotating shaft and the clamping rod in the present invention;

[0036] Figure 11 It is the schematic structural diagram of the regulation component in the present invention;

[0037] Figure 12 It is the schematic structural diagram of the trimming component in the present invention;

[0038] Figure 13 It is the sectional schematic diagram of the trimming component in the present invention.

[0039] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0040] 10. Body component; 11. Conveyor component; 111. Bracket; 112. Conveyor belt; 113. Crawler belt; 114. Air rod; 115. Anti-slip plate; 12. Module component; 121. Injection molding block; 122. Movable plate; 123. Connecting groove; 124. Electric guide rail 1; 125. Slide block; 126. Electric push rod 1; 127. Ejector rod; 128. Limit sleeve; 13. Splitting component; 131. Electric guide rail 2; 132. Electric guide rail 3; 133. Electric push rod 2; 134. Positioning plate; 135. Cutting knife; 136. Mechanical claw 1; 20. Underframe component; 21. Storage component; 211. Processing table; 212. Drainage cover; 213. Cabinet door; 22. Clamping component; 221. Rotating frame; 222. Motor 1; 223. Clamping rod; 224. Motor 2; 225. Rotating shaft; 226. Clamping pad; 227. Positioning groove; 228. Positioning ball; 229. Spring; 30. Grinding component; 31. Regulation component; 311. Fixed frame; 312. Electric guide rail 4; 313. Electric guide rail 5; 314. Sliding frame; 32. Trimming component; 321. Motor 3; 322. Rotating plate; 323. Electric push rod 3; 324. Mounting frame; 325. Mounting box; 326. Electric push rod 4; 327. Motor 4; 328. Grinding disc; 33. Fixing component; 331. Flipping rod; 332. Motor 5; 333. Mechanical claw 2. Detailed implementation manners

[0041] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made in conjunction with the accompanying drawings of the specification.

[0042] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0043] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in a preferred implementation manner" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0044] Furthermore, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0045] Please refer to the attachedFigure 1 As shown in Figure 1 , this embodiment provides an edge trimming device for injection molding of a toothbrush handle, including a body assembly 10. The body assembly 10 includes a conveying assembly 11. A module assembly 12 is arranged on the top of the conveying assembly 11, and a splitting assembly 13 is arranged on the top of the conveying assembly 11.

[0046] A chassis assembly 20, the chassis assembly 20 includes a storage assembly 21 arranged on the left side of the conveying assembly 11, and a clamping assembly 22 is arranged in the middle of the storage assembly 21.

[0047] A grinding assembly 30, the grinding assembly 30 includes a regulating assembly 31 arranged on the storage assembly 21. A trimming assembly 32 is arranged at the bottom of the regulating assembly 31, and a fixing assembly 33 is arranged on the left side of the inner cavity of the storage assembly 21.

[0048] Among them, the conveying assembly 11 is used to convey the module assembly 12. The splitting assembly 13 is used to take out the toothbrushes in the module assembly 12 and send them into the storage assembly 21. The clamping assembly 22 is used to clamp the toothbrush and flip it. The trimming assembly 32 is used to trim the edge of the toothbrush, and the position of the trimming assembly 32 is adjusted through the regulating assembly 31. The fixing assembly 33 is used to fix the middle part of the toothbrush.

[0049] In this embodiment, before trimming, the conveying assembly 11 conveys the part of the module assembly 12 carrying the injection-molded toothbrushes to the lower part of the splitting assembly 13. Then, the cutting part of the splitting assembly 13 cuts off the adhered part between the injection-molded toothbrushes, and the pushing part of the module assembly 12 cooperates to push out the toothbrushes. Immediately afterwards, the pushed-out toothbrushes are clamped by the splitting assembly 13 and conveyed into the storage assembly 21 to wait for trimming. At this time, the clamping assembly 22 will fix the two ends of the toothbrush and arbitrarily adjust the rotation direction. The trimming assembly 32 will, through the regulation of the regulating assembly 31, fit on the surface of the toothbrush for trimming operations. After the outer edge of the toothbrush is trimmed, the clamping assembly 22 will send the toothbrush to another station, where the toothbrush will be polished more finely. At the same time, the fixing assembly 33 will fix the middle section of the toothbrush, so as to release the two ends of the toothbrush and realize the trimming and polishing of the two ends of the toothbrush.

[0050] Secondly, please refer to Figures 1 to 6 again. Figures 1 to 6 The conveying assembly 11 includes a bracket 111. Conveyor belts 112 are installed on the front and rear sides of the bracket 111. Caterpillar tracks 113 are installed on the front and rear sides of the middle of the bracket 111. Air rods 114 are fixedly installed on the left and right sides of the middle of the bracket 111, and an anti-slip plate 115 is fixedly connected to the output end of the air rod 114.

[0051] The module component 12 includes an injection-molded block 121 placed on the crawler 113. An activity plate 122 is movably sleeved at the bottom of the inner cavity of the injection-molded block 121. A coherent groove 123 is formed on the bottom surface of the injection-molded block 121. An electric guide rail one 124 is fixedly installed at the bottom of the support 111. A slider 125 is slidably connected in the inner cavity of the electric guide rail one 124. An electric push rod one 126 is fixedly installed at the top of the slider 125. A top rod 127 is fixedly installed at the top end of the electric push rod one 126. A limit sleeve 128 is fixedly installed on the top surface of the slider 125. The outer ring of the top rod 127 is movably sleeved in the inner ring at the top of the limit sleeve 128;

[0052] The splitting component 13 includes an electric guide rail two 131 fixedly installed on the top surface of the middle part of the support 111. An electric guide rail three 132 is slidably connected in the inner cavity of the electric guide rail two 131. An electric push rod two 133 is arranged in the inner cavity of the electric guide rail three 132. The bottom end of the electric push rod two 133 is fixedly connected with a limit plate 134. A cutting knife 135 is fixedly connected to the bottom surface of the limit plate 134. A mechanical claw one 136 is fixedly installed at the top of the limit plate 134. The mechanical claw one 136 is arranged above the injection-molded block 121.

[0053] It should be noted that a strip-shaped groove is formed on the bottom surface of the middle part of the support 111, aiming to enable the top rod 127 to slide arbitrarily;

[0054] An empty groove is formed on the right side of the processing table 211 for installing the air rod 114 located on the left;

[0055] An electric rotating component is arranged at the top of the limit plate 134, and the electric rotating component is connected below the electric push rod two 133, aiming to adjust the rotation angle of the mechanical claw one 136 by using the electric rotating component so that both ends of the toothbrush can be accurately clamped.

[0056] In this embodiment, before trimming, the conveyor belt 112 transports the injection-molded block 121 onto the crawler 113. Subsequently, the air rod 114 pushes the anti-slip plate 115 to clamp and fix the injection-molded block 121. At this time, the electric push rod two 133 slides and extends in the electric guide rail three 132, pushing the limit plate 134 close to the injection-molded block 121, and using the cutting knife 135 to cut off the adhered part of the injection-molded toothbrush. Immediately afterwards, the slider 125 slides in the electric guide rail one 124, aligning the top rod 127 with the coherent groove 123 of the injection-molded block 121. The electric push rod one 126 extends to push the top rod 127 to lift the activity plate 122, causing the toothbrush to fall off from the injection-molded block 121. Subsequently, the mechanical claw one 136 clamps and fixes the toothbrush, and through the sliding of the electric guide rail two 131 and the electric guide rail three 132, transports the toothbrush to the storage component 21 for trimming operations. After the toothbrush trimming is completed, the mechanical claw one 136 will retract the trimmed toothbrush and place it above the injection-molded block 121. After all the toothbrushes in the injection-molded block 121 are trimmed, they can be transported to the subsequent processes through the crawler 113 and the conveyor belt 112.

[0057] Secondly, please refer to again Figures 7 to 12 , the storage component 21 includes a processing table 211 fixedly connected to the left side of the bracket 111. In the middle of the inner cavity of the processing table 211, a drainage cover 212 is fixedly installed. At the bottom of the front of the processing table 211, a box door 213 is hinged;

[0058] The clamping component 22 includes a rotating frame 221 rotatably connected to the middle of the inner cavity of the processing table 211. At the rear of the processing table 211, a first motor 222 is fixedly installed. The output shaft of the first motor 222 is fixedly connected to the rear side of the rotating frame 221. Inside the inner cavity of the rotating frame 221, a clamping rod 223 is slidably connected. Inside the inner cavity of the clamping rod 223, a second motor 224 is fixedly installed. On the output shaft of the second motor 224, a rotating shaft 225 is fixedly connected. The outer end of the rotating shaft 225 extends out of the clamping rod 223 and is fixedly connected with a clamping pad 226. A positioning groove 227 is formed in the inner cavity of the clamping rod 223. Inside the inner cavity of the rotating shaft 225, a positioning ball 228 is slidably connected. The positioning ball 228 is movably sleeved in the positioning groove 227, and the bottom of the positioning ball 228 is fixedly connected with a spring 229. The bottom end of the spring 229 is fixedly connected to the bottom of the inner cavity of the rotating shaft 225;

[0059] The fixing component 33 includes a flipping rod 331 rotatably connected to the left side of the inner cavity of the processing table 211. Inside the left inner cavity of the processing table 211, a fifth motor 332 is fixedly installed. The output shaft of the fifth motor 332 is fixedly connected to the axis of the flipping rod 331. At the bottom surface of the flipping rod 331, a second mechanical claw 333 is fixedly installed;

[0060] Electrically driven guide rails are installed on both the left and right sides of the rotating frame 221, and the clamping rod 223 is slidably connected in the electrically driven guide rails.

[0061] It should be noted that a contact type ring-shaped power supply device is provided at the part where the processing table 211 contacts the rotating frame 221, and the power supply device is connected to the mains power to supply energy to the electrical components inside the rotating frame 221;

[0062] The clamping pad 226 is an inwardly concave anti-slip material pad, aiming to improve the stability of clamping;

[0063] On the clamping claws of the second mechanical claw 333, retractable anti-slip strips are provided. When clamping a toothbrush, the anti-slip strips can be squeezed and retracted into the inside of the clamping claws, thereby increasing the clamping force and improving the clamping stability;

[0064] The length of the flipping rod 331 is less than the height of the fixing frame 311, aiming to enable the flipping rod 331 to rotate upward when not needed, so as to avoid affecting the trimming operation of the toothbrush.

[0065] In this embodiment, when trimming, the first mechanical claw 136 transports the toothbrush to the middle of the front and rear groups of clamping pads 226. Subsequently, the front and rear groups of clamping rods 223 approach each other to clamp and fix both ends of the toothbrush, and the grinding and trimming operation is carried out. The residue generated during trimming is recovered to the inner cavity bottom of the processing table 211 through the drainage cover 212. After the processing is completed, the box door 213 is opened for collection. At the same time, the second motor 224 drives the rotating shaft 225 and the clamping pad 226 to rotate, thereby driving the toothbrush to flip and adjust its orientation, so as to carry out fine grinding. During the rotation process, the positioning ball 228 will disengage from the positioning groove 227. When moving to the next positioning groove 227, the spring 229 will push the positioning ball 228 into the next group of positioning grooves 227 to achieve the positioning of the toothbrush orientation during rotation, avoiding inconsistent rotation of both ends of the toothbrush and affecting the accuracy of trimming. After the toothbrush is polished and corrected, the first motor 222 drives the rotating frame 221 to flip, so that the toothbrush is flipped to another working position, and another working position can receive a new injection-molded toothbrush for grinding and trimming. The toothbrush in the new working position will be subjected to more fine grinding. At the same time, the fifth motor 332 drives the flipping rod 331 to descend, and uses the second mechanical claw 333 to clamp and fix the middle part of the toothbrush, and then releases both ends of the toothbrush to carry out grinding and trimming on both ends of the toothbrush, so as to realize the two-station processing of the toothbrush and all-round grinding and trimming.

[0066] Please refer to again Figures 11 to 13 , the control component 31 includes a fixed frame 311 fixedly connected to the top of the processing table 211. An electric guide rail four 312 is fixedly installed on the top of the fixed frame 311. An electric guide rail five 313 is arranged in the chute of the electric guide rail four 312. A sliding frame 314 is slidably connected to the inner cavity of the electric guide rail five 313;

[0067] The trimming component 32 includes a third motor 321 fixedly connected to the top of the sliding frame 314. The output shaft of the third motor 321 penetrates the sliding frame 314 and is fixedly connected to a rotating plate 322 at the bottom. An electric push rod three 323 is fixedly installed at the bottom of the rotating plate 322. The bottom end of the electric push rod three 323 is fixedly connected to a mounting frame 324. The bottom of the mounting frame 324 is rotatably connected to a mounting box 325. The right side of the front of the mounting box 325 is hinged with an electric push rod four 326. The top of the electric push rod four 326 is hinged to the top of the front of the mounting frame 324. A fourth motor 327 is installed in the inner cavity of the mounting box 325. The output shaft of the fourth motor 327 extends out of the mounting box 325 and is fixedly connected to a grinding disc 328.

[0068] It should be noted that the grinding disc 328 at the right working position is a disc-shaped grinding wheel, while the grinding disc 328 at the left working position is a conical grinding wheel, aiming to enable the toothbrush to be roughly ground at the right working position and then transferred to the left working position for fine grinding, improving the comfort and integrity of trimming and the efficiency of grinding.

[0069] In this embodiment, during the grinding process, the electric guide rail four 312 and the electric guide rail five 313 operate to adjust the position of the sliding frame 314. Subsequently, the electric push rod three 323 pushes the grinding disc 328 downwards to approach the toothbrush. Immediately afterwards, the electric push rod four 326 operates to push the mounting box 325 to rotate and adjust the inclination angle of the grinding disc 328, while the motor three 321 drives the rotating plate 322 to rotate to adjust the rotating orientation of the grinding disc 328, thereby realizing the all-round regulation of the grinding disc 328 and improving the comprehensiveness and efficiency of the grinding of the toothbrush.

[0070] The working principle of the present invention is as follows: Before trimming, the conveyor belt 112 transports the injection molded block 121 onto the crawler 113. At this time, the electric push rod two 133 pushes the limiting plate 134 close to the injection molded block 121, and the injection molded toothbrush is cut off by the cutting knife 135. Immediately afterwards, the slider 125 slides within the electric guide rail one 124 to align the ejector rod 127 with the continuous groove 123 of the injection molded block 121. The electric push rod one 126 extends to push the ejector rod 127 to eject the toothbrush from the injection molded block 121. Subsequently, the mechanical claw one 136 clamps and fixes the toothbrush, and through the operation of the electric guide rail two 131 and the electric guide rail three 132, the toothbrush is transported between the front and rear groups of clamping pads 226. Subsequently, the front and rear groups of clamping rods 223 approach each other to clamp and fix both ends of the toothbrush, and trimming operations are performed. At the same time, the motor two 224 drives the rotating shaft 225 and the clamping pad 226 to rotate, thereby driving the toothbrush to flip and adjust its orientation, so as to perform all-round grinding. During the grinding process, the electric guide rail four 312 and the electric guide rail five 313 operate to adjust the position of the sliding frame 314. Subsequently, the electric push rod three 323 pushes the grinding disc 328 downwards to approach the toothbrush. Immediately afterwards, the electric push rod four 326 operates to push the mounting box 325 to rotate and adjust the inclination angle of the grinding disc 328, while the motor three 321 drives the rotating plate 322 to rotate to adjust the rotating orientation of the grinding disc 328, thereby realizing the all-round regulation of the grinding disc 328. After the toothbrush is ground and corrected, the motor one 222 drives the rotating frame 221 to flip, so that the toothbrush is flipped to another station, and another station can receive a new injection molded toothbrush for grinding and trimming. The toothbrush at the new station will be subjected to more precise grinding. At the same time, the motor five 332 drives the flipping rod 331 to descend, and uses the mechanical claw two 333 to clamp and fix the middle part of the toothbrush, and then releases both ends of the toothbrush to perform grinding and trimming on both ends of the toothbrush. After the toothbrush trimming is completed, the toothbrush will be re-transferred to the right station. Subsequently, the mechanical claw one 136 will retract the trimmed toothbrush and place it above the injection molded block 121. After all the toothbrushes in the injection molded block 121 are trimmed, they can be transported to the subsequent process through the crawler 113 and the conveyor belt 112.

[0071] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. An edge trimming device for injection molding of a toothbrush handle, characterized in that: include: A machine body component (10), the machine body component (10) comprising a conveying component (11), a module component (12) being arranged on the top of the conveying component (11), and a dividing component (13) being arranged on the top of the conveying component (11); A chassis assembly (20), the chassis assembly (20) comprising a storage assembly (21) arranged on the left side of the conveying assembly (11), a clamping assembly (22) being arranged in the middle of the storage assembly (21); A grinding component (30), the grinding component (30) comprising a regulating component (31) arranged on the storage component (21), the regulating component (31) comprising a fixing frame (311) fixedly connected to the top of the processing table (211), an electric guide rail four (312) fixedly installed on the top of the fixing frame (311), an electric guide rail five (313) arranged in a slide groove of the electric guide rail four (312), and a sliding frame (314) slidably connected to the inner cavity of the electric guide rail five (313); A trimming component (32) is disposed at the bottom of the regulating component (31), and a fixing component (33) is disposed on the left side of the inner cavity of the storage component (21); The conveying assembly (11) is used to convey the module assembly (12); the dividing assembly (13) is used to take out the toothbrush in the module assembly (12) and deliver it to the storage assembly (21); the clamping assembly (22) is used to clamp the toothbrush and flip it; the trimming assembly (32) is used to trim the edge of the toothbrush, and the position of the trimming assembly (32) is adjusted by the regulating assembly (31); and the fixing assembly (33) is used to fix the middle part of the toothbrush; The conveying assembly (11) comprises a bracket (111), a conveyor belt (112) is installed on both the front and rear sides of the bracket (111), a crawler belt (113) is installed on both the front and rear sides of the middle part of the bracket (111), a gas rod (114) is fixedly installed on both the left and right sides of the middle part of the bracket (111), and an anti-skid plate (115) is fixedly connected to the output end of the gas rod (114); The storage assembly (21) comprises a processing table (211) fixedly connected to the left side of the bracket (111), a drainage cover (212) is fixedly installed in the middle of the inner cavity of the processing table (211), and a box door (213) is hinged at the bottom of the front of the processing table (211); The clamping assembly (22) comprises a rotating frame (221) rotatably connected to the middle part of the inner cavity of the processing table (211); a motor 1 (222) is fixedly mounted on the rear side of the processing table (211); an output shaft of the motor 1 (222) is fixedly connected to the rear side of the rotating frame (221); a clamping rod (223) is slidably connected to the inner cavity of the rotating frame (221); a motor 2 (224) is fixedly mounted in the inner cavity of the clamping rod (223); a rotating shaft (224) is fixedly connected to the output shaft of the motor 2 (224) 225), the outer end of the rotating shaft (225) extends out of the clamping rod (223) and is fixedly connected to a clamping pad (226), the inner cavity of the clamping rod (223) is provided with a positioning groove (227), the inner cavity of the rotating shaft (225) is slidably connected to a positioning ball (228), the positioning ball (228) is movably sleeved in the positioning groove (227), and the bottom of the positioning ball (228) is fixedly connected to a spring (229), and the bottom end of the spring (229) is fixedly connected to the bottom of the inner cavity of the rotating shaft (225).

2. The edge trimming device for injection molding of a toothbrush handle according to claim 1, characterized in that: The module assembly (12) comprises an injection molding block (121) placed on a crawler track (113); a movable plate (122) is movably sleeved at the bottom of the inner cavity of the injection molding block (121); a continuous groove (123) is provided on the bottom surface of the injection molding block (121); an electric guide rail (124) is fixedly mounted at the bottom of the bracket (111); a slider (125) is slidably connected to the inner cavity of the electric guide rail (124); an electric push rod (126) is fixedly mounted on the top of the slider (125); a top rod (127) is fixedly mounted on the top of the electric push rod (126); a limiting sleeve (128) is fixedly mounted on the top surface of the slider (125); and an outer ring of the push rod (127) is movably sleeved on the top inner ring of the limiting sleeve (128).

3. The edge trimming device for injection molding of a toothbrush handle according to claim 2, characterized in that: The splitting assembly (13) comprises an electric guide rail 2 (131) fixedly mounted on the top surface of the middle part of the bracket (111); the inner cavity of the electric guide rail 2 (131) is slidably connected to the electric guide rail 3 (132); the inner cavity of the electric guide rail 3 (132) is provided with an electric push rod 2 (133); the bottom end of the electric push rod 2 (133) is fixedly connected to a limiting plate (134); the bottom surface of the limiting plate (134) is fixedly connected to a cutting knife (135); the top of the limiting plate (134) is fixedly mounted with a mechanical claw 1 (136); the mechanical claw 1 (136) is arranged above the injection molding block (121).

4. The edge trimming device for injection molding of a toothbrush handle according to claim 1, characterized in that: The trimming assembly (32) includes a motor three (321) fixedly connected to the top of the sliding frame (314), the output shaft of the motor three (321) passes through the sliding frame (314), and the bottom is fixedly connected to a rotating plate (322), the bottom of the rotating plate (322) is fixedly installed with an electric push rod three (323), the bottom end of the electric push rod three (323) is fixedly connected to a mounting frame (324), the bottom of the mounting frame (324) is rotatably connected to a mounting box (325), the front right side of the mounting box (325) is hinged with an electric push rod four (326), the top of the electric push rod four (326) is hinged to the front top of the mounting frame (324), the inner cavity of the mounting box (325) is installed with a motor four (327), the output shaft of the motor four (327) extends out of the mounting box (325), and is fixedly connected to a grinding disc (328).

5. The edge trimming device for injection molding of a toothbrush handle according to claim 1, characterized in that: The fixing assembly (33) comprises a flip rod (331) rotatably connected to the left side of the inner cavity of the processing table (211); a motor five (332) is fixedly installed in the inner cavity on the left side of the processing table (211); an output shaft of the motor five (332) is fixedly connected to the axis of the flip rod (331); and a mechanical claw two (333) is fixedly installed on the bottom surface of the flip rod (331).

6. The edge trimming device for injection molding of a toothbrush handle according to claim 1, characterized in that: Electric drive guide rails are installed on both left and right sides of the rotating frame (221), and the clamping rod (223) is slidably connected in the electric drive guide rails.

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