A processing device and method for oral cleaning bristles

Abstract

The present invention discloses a processing device for oral cleaning bristles, including a specially designed composite cam, the structure of which mainly includes a screw and a cam, which rotate together as a whole to achieve synchronous movement in the vertical and horizontal directions; and is equipped with a sliding rod that moves along the cam curve profile, which is connected to a tray carrying bristle rods, and the bristle rods to be processed will follow the tray to rise and fall and translate, and then through the drive of a servo motor, the depth of the bristles immersed in the solution and the movement changes during the immersion process can be accurately controlled; at the same time, the shape and structure of the tray match the movement of the composite cam, and in order to enhance the uniformity of the solution concentration, a spiral stirring paddle is added to the tray, which can rotate. Utilizing the processing device for oral cleaning bristles proposed by the present invention, the accuracy and stability of oral cleaning bristle processing can be improved. The present invention also discloses a processing method adapted to the above-mentioned processing device.

Description

Technical Field

[0001] The present invention relates to the fine processing of oral cleaning bristles. From a microscopic perspective, each finished bristle is not in a standard cylindrical shape, but in a needle-like shape at the top, so a cylindrical bristle blank needs to be processed and formed. Background Art

[0002] At present, the molding and processing industry of oral cleaning bristles is relatively niche, and the typical application is the processing of toothbrush bristles. Considering the tiny size and material properties of the bristles, general machining methods are difficult to achieve, so most of them use chemical solution ablation. There are not many specific application methods and processes on the market, and they are basically in the workshop production stage. Their accuracy and stability need to be improved urgently. Due to the lack of mature and practical popularization methods, most of the current practitioners rely on the most basic manpower to roughly pile up the bristle raw materials in the solution for ablation processing. It is difficult to finely control the size and shape changes. The processing process is adjusted only by the observation and experience of the workers, which obviously cannot meet the precision requirements and continuous and stable output of high-end products. The ablation length of the tip of high-end bristles requires an accuracy of 0.2mm, which is almost impossible for manual operation. It relies more on the workers' experience, repeated experiments, and continuous monitoring of size changes to achieve the predetermined shape requirements. In this process, people are highly dependent, and product quality is difficult to maintain stability. Summary of the invention

[0003] The problem to be solved by the present invention is that the processing precision of bristles is not high and the quality of mass production cannot be kept stable. In view of the defects of the prior art, when a chemical solution is used to ablate the bristles, the present invention adopts a specially designed composite cam and combines automation technology to reduce the adverse factors of human interference and improve the dimensional precision and stability of bristle processing. The purpose is to provide a special device and method for mass production of high-end bristles.

[0004] The invention discloses a processing device for oral cleaning bristles, which is characterized by comprising a composite cam, a central supporting rod, a cam groove sliding rod, a pulley block, a tray, a probe, a spiral stirring paddle and a single chip microcomputer control system.

[0005] The composite cam combines the movement characteristics of the screw and the cam, and is driven by a servo motor to achieve vertical and horizontal bidirectional synchronous movement. On the one hand, it can accurately control the immersion depth of the bristles and improve the accuracy of the ablation shape. On the other hand, it can make the bristle material translate in the pool and improve the stability of the chemical solution. The screw part of the composite cam is used to achieve vertical linear motion. The moving distance can be precisely controlled by the servo motor drive instruction; the composite cam also has the function of controlling the translation trajectory, and is equipped with a slide rod that moves along its contour curve, and is connected to the tray so that it translates with the slide rod.

[0006] The central support rod and the cam groove slide rod are used to transmit the movement of the compound cam to the pallet. One end of the central support rod is fixed at the rotation axis of the compound cam, and the other end uses a pulley group to support the pallet. In conjunction with the movement of the cam groove slide rod, the pallet can be driven to produce vertical and horizontal compound movements.

[0007] The tray has a curved baffle that can match the motion trajectory of the compound cam. The tray has a screen structure, and the bristle rods placed thereon can fully immerse the liquid surface. At the same time, a spiral stirring paddle is installed on the side of the tray close to the pool. As the tray moves vertically and horizontally, it rotates to improve the uniformity of the solution.

[0008] The relative position between the probe and the tray is fixed and unchanged, and the probe is installed at a position closer to the liquid surface than the tray. During the descending process of the tray, it is ensured that the probe contacts the liquid surface before the tray.

[0009] The single chip control system is provided with a processing program and a process recipe, and is respectively connected with a servo driver and a probe through signal lines.

[0010] The present invention also provides a method for processing oral cleaning bristles, which is applied to the processing device for oral cleaning bristles, and comprises the following steps:

[0011] Step 1: Pour chemical solution into the water pool and turn on the heating function to raise the solution temperature to the process requirements. Make sure the tray is in the proper position so that the probe is above the liquid surface.

[0012] Step 2: Wrap the fiber raw material of the oral brush bristles into a cylindrical rod, cut it into rod sections of equal length according to product requirements, and then place it in a tray, and select the processing program through the single-chip control system;

[0013] Step 3: Start the processing program, the tray quickly descends to approach the water pool, and when the probe touches the liquid surface, the tray stops moving;

[0014] Step 4: The tray is slowly lowered to the processing depth so that the bristle rod material is immersed in the liquid;

[0015] Step 5: The processing depth mentioned in the above step 4 is the maximum limit of the tray's descent. During the bristle immersion and ablation process, the tray is reciprocated and lifted to continuously adjust the bristle's immersion depth. Under the action of the composite cam, the tray will move horizontally while lifting and lowering, and the spiral stirring paddle will also move with the tray and produce rotation.

[0016] Step 6: After the processing of step 5 continues for a specified time, the tray rises and moves away from the water pool, so that the bristle rod material is separated from the solution and waits for material discharging detection;

[0017] At this point, a method for processing oral cleaning bristles is completed.

[0018] Through the above-mentioned design scheme, the present invention can bring the following beneficial effects: utilizing the structural characteristics of the composite cam and combining it with automation technology, and the immersion depth control method based on liquid level calibration can significantly improve the processing accuracy of the bristles. The tray can be accurately positioned during the reciprocating lifting and translation process, accompanied by the stirring of the spiral stirring paddle, thereby improving the uniformity of the chemical solvent and improving the efficiency and stability of the ablated bristles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure.

[0020] Figure 2 It is a schematic diagram of the compound cam and tray.

[0021] In the figure: 1. single chip microcomputer control system, 2. servo motor, 3. steering gear, 4. top plate, 5. compound cam, 6. cam groove slide bar, 7. center support rod, 8. pulley block, 9. water tank, 10. spiral stirring paddle, 11. tray, 12. curved rib, 13. probe. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the implementation of the present invention in combination with application examples, mainly including two modes: automatic processing and manual processing.

[0023] 1. The automatic processing embodiment is automatically executed by the single-chip control system according to the preset program. Put a number of groups of brush rods in the tray, check the process parameters, and then start the processing program, thereby entering the automatic processing mode. The device runs completely according to the control program, and the program content is consistent with the aforementioned processing method. According to product requirements, it completes the predetermined process actions such as heating, positioning, stirring, and soaking. At the same time, it monitors the position, temperature and other signals to display the processing status. After the bristle processing is completed, the tray automatically rises and waits for the material to be discharged.

[0024] 2. The manual processing embodiment can meet the parameter fine-tuning and manual test under complex processes. In manual processing, i.e. step-by-step operation mode, key nodes on the process route require manual intervention to ensure accuracy, such as the movement of the tray, the calibration of the liquid level, the start of solution heating, and the setting of process parameters. Note that the logical relationship of the process must be met during manual operation, otherwise the protection mechanism of the device may be triggered.

[0025] Manual processing method:

[0026] Step 1: Select the manual mode in the single-chip control system, confirm that the water pool is filled with chemical solution, and turn on the heating function to raise the solution temperature to the process requirements, confirm that the tray is in the appropriate position, make the probe higher than the liquid level, and reserve space for subsequent movement;

[0027] Step 2: Wrap the fiber raw materials of oral brush bristles into cylindrical rods, cut them into rod segments of equal length according to product requirements, and then place them in a tray. Clarify the task requirements, analyze the main nodes and measurement and control signals of the process flow, and input the process parameters. At this time, the control system will also perform self-checks and automatically correct the parameters that may have logical conflicts. At this time, it may deviate from the expected technical route and requires extra attention.

[0028] Step 3, the tray is quickly lowered to the pool, and when the probe touches the liquid surface, the tray stops moving. If there is a temperature error in this step, an alarm will be triggered and the action cannot be taken;

[0029] Step 4, continue to move the tray down, this time moving slowly, and automatically positioning according to the set immersion depth. This process can also be selected in step mode. Each time the down button is pressed, the tray moves down a fixed distance, and so on until it reaches the preset position;

[0030] Step 5: Verify the immersion depth and the position of the probe calibration liquid level to calibrate the parameters for automatic processing. During the immersion process, the process can be interrupted at any time to manipulate the tray to move up;

[0031] Step 6: After the ablation is completed, the tray is operated to rise, so that the bristles are separated from the solution and wait for the material to be tested;

[0032] When the present invention is implemented, the control process can be adjusted according to the actual process requirements, combined with the calculation and processing of data such as temperature and liquid level position, and the influencing factors of immersion depth and ablation time can be comprehensively used to complete the processing process of the bristle shape.

[0033] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various modifications, substitutions and variations of the technical solutions of the present invention based on the principles and ideas of the present invention, and imitations without fundamental innovation, all fall within the scope of protection of the claims of the present invention.

Claims

1. A processing device for oral cleaning bristles, characterized in that: It comprises a single chip microcomputer control system (1), a servo motor (2), a steering gear (3), a top plate (4), a compound cam (5), a cam groove slide bar (6), a center support rod (7), a pulley block (8), a water pool (9), a spiral stirring blade (10), a tray (11), a curved retaining edge (12), and a probe (13); The composite cam (5) is composed of a screw and a cam. The screw is driven to rotate by a servo motor (2) through a steering gear (3), so that the composite cam (5) as a whole can move linearly in a vertical direction. The cam can drive the tray (11) to translate in a horizontal direction while following the rotation of the screw as a whole, thereby achieving synchronous movement in the vertical and horizontal directions. The central support rod (7) is fixed to the rotation axis of the composite cam (5) and is equipped with a pulley group (8) capable of carrying the tray (11); the cam groove slide rod (6) is limited to slide in the curved groove of the composite cam (5) and is connected and fixed to the tray (11); the tray (11) is made into a screen shape, positioned by the central support rod (7) and the cam groove slide rod (6), and rises and falls and moves in translation following the movement of the composite cam (5); the water pool (9) is filled with chemical solution, and the brush bristle rod material to be processed is placed on the tray (11) and moves accordingly; The tray (11) has a curved rib (12) matching the composite cam (5); the central support rod (7) and the pulley block (8) bear the weight of the tray (11) on the one hand, and slide along the curved rib (12) on the other hand, and cooperate with the movement of the cam groove slide bar (6) to control the translation trajectory of the tray (11); the tray (11) is equipped with a spiral stirring paddle (10) on the side adjacent to the solution, and the spiral stirring paddle (10) can rotate when following the lifting and translation of the tray (11); The relative position of the probe (13) and the tray (11) remains fixed, the probe (13) is installed at a position closer to the liquid surface than the tray (11), and during the descending process of the tray (11), it is ensured that the probe (13) contacts the liquid surface before the tray (11).

2. A method for processing oral cleaning bristles, characterized in that: The processing device for oral cleaning bristles according to claim 1 comprises the following steps: And the following steps are carried out in sequence; Step 1: inject chemical solution into the water pool (9) and start the heating function to raise the solution temperature to the process requirements, confirm that the tray (11) is in the appropriate position and the probe (13) is above the liquid surface; Step 2: Wrap the fiber raw material of the oral brush bristles into a cylindrical rod, cut it into rod sections of equal length according to product requirements, and then place it in a tray (11), and select a processing program through a single-chip microcomputer control system (1); Step 3: Start the processing program, the tray (11) quickly descends to approach the pool (9), and when the probe (13) touches the liquid surface, the tray (11) stops moving; Step 4: The tray (11) is slowly lowered to the processing depth so that the bristle rod material is immersed in the liquid; Step 5: The processing depth mentioned in the above step 4 is the maximum limit of the tray (11) being lowered. During the process of immersion and ablation of the bristles, the tray (11) is lifted and lowered to continuously adjust the immersion depth of the bristles. Under the action of the composite cam (5), the tray (11) is lifted and lowered and also moves horizontally. The spiral stirring paddle (10) also moves with the tray (11) and rotates. Step 6: After the processing of step 5 continues for a specified time, the tray (11) rises and moves away from the water pool (9), so that the bristle rod material is separated from the solution and waits for the material discharge inspection.

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