Preparation method and equipment of composite spray pipe for oral cavity spray head and prepared composite spray pipe

Abstract

The invention discloses a preparation method and equipment of a composite spray pipe for an oral cavity spray nozzle and the prepared composite spray pipe, and relates to the technical field of medical spray pipe preparation. The method comprises the steps that machining process parameters of a main inner pipe machining mechanism are detected in real time; if it is judged that the first size parameter exceeds the preset size range, the current detection position serves as the abnormal position of the inner pipe and is cut, the conveying direction of the inner pipe continuously output by the main inner pipe machining mechanism is switched to a waste storage area, and meanwhile the first size parameter of the inner pipe conveyed to the waste storage area is detected; feeding stopping information is sent to the combined machining mechanism, and the feeding stopping information carries the feeding stopping moment; if the first size parameter is recovered to the preset size range within the preset time period, the current detection position serves as a recovery position and is cut, and the conveying direction of the inner pipe continuously output by the main inner pipe machining mechanism is recovered; otherwise, the combined machining mechanism is switched to be matched with the standby inner pipe machining mechanism, so that the machining quality and the preparation efficiency are improved.

Description

Technical Field

[0001] The present invention generally relates to the technical field of medical nozzle preparation, and in particular to a method and equipment for preparing a composite nozzle for an oral nozzle and the composite nozzle prepared thereby. Background Art

[0002] The three-in-one spray gun is a cleaning tool for dental oral treatment, which is used to spray water, air or a gas-liquid mixture into the patient's mouth. Among them, the nozzle structure of the three-in-one spray gun is usually formed by inserting an inner tube extruded by melting polycarbonate (PC) into an outer tube. The existing molding method is to apply glue on the outer surface of the inner tube, then insert the inner tube into the outer tube, and connect the inner tube and the outer tube by applying glue. However, this molding method has the problems of uneven quality and low production efficiency. Summary of the invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a method and apparatus for preparing a composite nozzle for an oral nozzle, which improves processing quality and preparation efficiency, and a composite nozzle prepared thereby.

[0004] In a first aspect, the present application provides a method for preparing a composite nozzle for an oral nozzle, which is applied to a composite nozzle preparation production line, wherein the composite nozzle preparation production line comprises: a plurality of processing units and at least one spare inner tube processing mechanism, each processing unit comprises a main inner tube processing mechanism and a composite processing mechanism, and the main inner tube processing mechanism and the spare inner tube processing mechanism both comprise a first traction device corresponding thereto; the first traction device is used to guide the inner tube output by the main inner tube processing mechanism or the spare inner tube processing mechanism to the inner tube feeding end of the composite processing mechanism; the composite processing mechanism is used to receive the inner tube and make an outer tube outside the inner tube to form a composite nozzle, and the composite processing mechanism comprises a second traction device, and the second traction device is used to guide the movement of the composite nozzle; the method comprises the following steps: Real-time detection of processing parameters of the main inner tube processing mechanism; the processing parameters include a first processing temperature of the main inner tube processing mechanism and a first traction speed of the first traction device thereof; When the processing parameters exceed the corresponding preset processing parameter range, the corresponding processing parameters are adjusted, and the first size parameter of the inner tube output by the main inner tube processing mechanism to the input end of the first traction device is detected in real time; If it is determined that the first size parameter exceeds the preset size range, the current detection position is taken as the abnormal position of the inner tube, the inner tube is cut at the abnormal position, the conveying direction of the inner tube that the main inner tube processing mechanism continues to output is switched to the waste storage area, and the first size parameter of the inner tube conveyed to the waste storage area is continuously detected in real time, and the stopping feeding time of the composite processing mechanism is determined according to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, and the stopping feeding information is sent to the composite processing mechanism, and the stopping feeding information carries the stopping feeding time, so that the composite processing mechanism processes the inner tube conveyed to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length; If it is detected within the preset time period that the first size parameter of the inner tube is restored to the preset size range, the inner tube is cut at the recovery position, and the conveying direction of the inner tube continued to be output by the main inner tube processing mechanism is restored to the composite processing mechanism; otherwise, the composite processing mechanism is switched to cooperate with the backup inner tube processing mechanism.

[0005] According to the technical solution provided by this application, the method further includes the following steps: From the moment when the inner tube is cut at the abnormal position, a plurality of first size parameters collected within a preset time period are acquired; If the number of first size parameters that are continuously within the preset size range within the preset time period is greater than or equal to the preset number, it is determined that the first size parameter of the inner tube within the preset time period is restored to the preset size range.

[0006] According to the technical solution provided by this application, the method further includes the following steps: Obtaining the supply time of the main inner tube processing mechanism or the backup inner tube processing machine; the supply time is the time when the main inner tube processing mechanism transports the inner tube whose first size parameter is restored to the preset size range to the input end of its first traction device, or the time when the backup inner tube processing mechanism switches to cooperate with the composite processing mechanism and transports the output inner tube to the input end of its first traction device; According to the supply timing, the equipment dimensions of the first traction device and the composite processing mechanism, the equipment spacing and the first traction speed, the restart feeding timing of the composite processing mechanism is determined, and restart feeding information is sent to the composite processing mechanism. The restart feeding information carries the restart feeding timing, so that the composite processing mechanism transports the outer tube material to the surface of the inner tube when the inner tube output by the main inner tube processing mechanism or the backup inner tube processing mechanism is transmitted to the interior of the composite processing mechanism.

[0007] According to the technical solution provided by the present application, the equipment size is the sum of the length of the first traction device and the straight-line distance between the inner tube material feeding end of the composite processing mechanism and the outer tube material feeding end thereof; the equipment spacing is the straight-line distance between the output end of the first traction device and the outer tube material feeding end of the composite processing mechanism; the restart feeding time of the composite processing mechanism is determined according to the supply time, the equipment size of the first traction device and the composite processing mechanism, the equipment spacing and the first traction speed, and specifically includes the following steps: Calculating a first distance according to device sizes and device spacing between the first traction device and the composite processing mechanism; A first conveying time is calculated according to the first distance and the first traction speed; the first conveying time is the time taken for the inner tube to be conveyed from the input end of the first traction device to the outer tube material feeding end of the composite processing mechanism; The supply time is taken as the starting time, and the time after the first conveying time has passed is recorded as the restart feeding time.

[0008] According to the technical solution provided by the present application, according to the current moment, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting moment of the last cutting and forming of the standard composite nozzle by the composite processing mechanism and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, the moment of stopping feeding of the composite processing mechanism is determined, which specifically includes the following steps: Determining the length of the composite nozzle output by the composite processing mechanism after the last cutting according to the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the current time and the second pulling speed; Calculate the length of the available inner tube according to the length of the first traction device, the straight-line distance between the output end of the first traction device and the inner tube feeding end of the composite processing mechanism, and the straight-line distance from the inner tube feeding end of the composite processing mechanism to the outer tube material feeding end of the composite processing mechanism; the length of the available inner tube is the inner tube length that can be used to produce the composite nozzle by the main inner tube processing mechanism after the last cutting; According to the length of the composite nozzle output by the composite processing mechanism since the last cutting, the length of the available inner tube, and the preset length of the standard composite nozzle, the total number of standard composite nozzles of preset length processed by the composite processing mechanism from the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position and the first length of the remaining inner tube are calculated; the remaining inner tube is the inner tube portion remaining after the composite processing mechanism processes the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length; The time for stopping feeding of the compound processing mechanism is determined based on the current time, the total number of standard compound nozzles that the inner tube delivered to the compound processing mechanism by the main inner tube processing mechanism is processed into a preset length by the compound processing mechanism before cutting the abnormal position, the cutting cycle, the first length of the residual inner tube, and the first traction speed of the first traction device.

[0009] According to the technical solution provided by the present application, the length of the composite nozzle output by the composite processing mechanism after the last cutting is determined according to the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the current time and the second traction speed, which specifically includes the following steps: According to the cutting time of the standard composite nozzle formed by the composite processing mechanism last time and the current time, the delivery time of the composite nozzle output by the composite processing mechanism since the last cutting is calculated; The length of the composite nozzle output by the composite processing mechanism after the last cutting is determined according to the conveying time of the composite nozzle output by the composite processing mechanism after the last cutting and the second pulling speed.

[0010] According to the technical solution provided by this application, the method further includes the following steps: Determine the total number of cutting times of the composite processing mechanism according to the total number of standard composite nozzles of preset length processed by the composite processing mechanism from the inner tube delivered by the main inner tube processing mechanism to the composite processing mechanism before cutting the abnormal position; From the moment the composite processing mechanism receives the stop feeding information, the number of cutting times is counted until the number of cutting times is equal to the total number of cutting times, and the conveying direction of the composite processing mechanism is switched to the waste storage area so that the residual material inner tube is conveyed to the waste storage area.

[0011] In a second aspect, the present application provides a composite nozzle preparation device for an oral nozzle, which is used to implement the above-mentioned composite nozzle preparation method for an oral nozzle, the device comprising: a plurality of processing units and at least one spare inner tube processing mechanism, each processing unit comprising a main inner tube processing mechanism and a composite processing mechanism; The main inner tube processing mechanism and the backup inner tube processing mechanism each include a first traction device corresponding thereto; the first traction device is used to guide the inner tube output by the main inner tube processing mechanism or the backup inner tube processing mechanism to the inner tube feeding end of the composite processing mechanism; the composite processing mechanism is used to receive the inner tube and make an outer tube outside the inner tube to form a composite nozzle, and the composite processing mechanism includes a second traction device, and the second traction device is used to guide the movement of the composite nozzle; The feeding end of the first traction device and the discharging end of the second traction device are respectively provided with cutting structures, and the cutting structures are used to cut the corresponding inner tube or the composite nozzle; A control unit is communicatively connected with the processing unit and is used to control the processing unit to perform corresponding actions.

[0012] According to the technical solution provided in this application, the composite processing mechanism includes a composite head structure; The composite head structure comprises: An inner die head and an outer die head sleeved outside the inner die head; a molding chamber is formed between the outer die head and the inner die head; The inner head has an inner tube accommodating cavity coaxially arranged with the molding chamber, and the inner head is provided with a first opening and a second opening communicating with the inner tube accommodating cavity, the first opening is used to receive the inner tube output by the main inner tube processing mechanism or the spare inner tube processing mechanism; the second opening is used to output the composite nozzle; a heat insulation structure is provided at the first opening; The outer head is provided with an outer tube feed port and a discharge port, the outer tube feed port is communicated with the molding chamber, and the discharge port is communicated with the second opening and the inner tube accommodating chamber.

[0013] In a third aspect, the present application provides a composite nozzle, which is made based on the above-mentioned composite nozzle preparation device for the oral nozzle, and the composite nozzle comprises: An inner tube and an outer tube are coaxially arranged, the inner tube's lumen forms a water flow channel, the outer tube's inner wall has a plurality of protrusions, an air flow channel is formed between the protrusions and the inner tube; the cross-section of the protrusions is triangular, and the tip of the triangle is connected to the inner tube.

[0014] It can be seen from the above technical solution that the present application has at least the following beneficial effects: The present application provides a method for preparing a composite nozzle for an oral nozzle, which comprises: real-time detection of processing parameters of a main inner tube processing mechanism; the processing parameters include a first processing temperature of the main inner tube processing mechanism and a first traction speed of its first traction device; when the processing parameters exceed the corresponding preset process parameter range, the corresponding processing parameters are adjusted, and a first size parameter of an inner tube outputted from the main inner tube processing mechanism to an input end of the first traction device is detected in real time; if it is determined that the first size parameter exceeds the preset size range, the current detection position is used as an abnormal position of the inner tube, the inner tube is cut at the abnormal position, the conveying direction of the inner tube continuously outputted by the main inner tube processing mechanism is switched to a waste storage area, and the first size parameter of the inner tube conveyed to the waste storage area is continuously detected in real time, and the first size parameter of the inner tube conveyed to the waste storage area is detected according to the current time, the first traction speed of the first traction device, and the standard composite nozzle. The preset length of the tube, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism and the equipment spacing, determine the stop feeding time of the composite processing mechanism, and send the stop feeding information to the composite processing mechanism, the stop feeding information carries the stop feeding time, so that the composite processing mechanism processes the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length; if it is detected that the first size parameter of the inner tube is restored to the preset size range within the preset time period, the inner tube is cut at the restored position, and the conveying direction of the inner tube that continues to be output by the main inner tube processing mechanism is restored to the composite processing mechanism; otherwise, the composite processing mechanism is switched to cooperate with the spare inner tube processing mechanism.

[0015] The present application detects the processing parameters of the main inner tube processing mechanism in real time and adjusts them. If it is determined that the first size parameter of the inner tube exceeds the preset size range, the current detection position is regarded as an abnormal position and cut to prevent defective products from continuing to flow into subsequent processes, prevent problems from accumulating and expanding, and effectively reduce raw material waste and rework costs. The conveying direction of the inner tube that the main inner tube processing mechanism continues to output is switched to the waste storage area, and the first size parameter of the inner tube conveyed to the waste storage area is continuously monitored in real time. If it is found that the first size parameter of the inner tube is restored to the preset size range within the preset time period, it is cut at the recovery position and the conveying direction of the inner tube is restored to the composite processing mechanism. This can seamlessly connect the production process, avoid unnecessary shutdown and restart, maintain an efficient production rhythm, and reduce equipment idling and idle production capacity. If the first size parameter of the inner tube cannot be restored within the preset time period, the spare inner tube processing mechanism and the composite processing mechanism are promptly activated to cooperate in the production of composite nozzles to ensure that the entire composite nozzle preparation production line is not completely shut down, thereby ensuring production and processing efficiency. In addition, according to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism and the equipment spacing, the stop feeding time of the composite processing mechanism is determined, and the stop feeding information carrying the stop feeding time is sent to the composite processing mechanism, so as to guide the composite processing mechanism to process the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length, thereby effectively reducing the waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0017] Figure 1 The present invention is a flow chart of a method for preparing a composite nozzle for an oral nozzle.

[0018] Figure 2 A flow chart for determining the moment when the composite machining mechanism stops feeding.

[0019] Figure 3 This is a flowchart for determining whether to switch the inner tube processing mechanism.

[0020] Figure 4 Flow chart for determining the time to restart feeding of the composite machining mechanism.

[0021] Figure 5 This is a schematic diagram of the structure of a composite nozzle preparation device for an oral nozzle.

[0022] Figure 6Schematic diagram of the composite head structure.

[0023] Figure 7 Schematic diagram of the structure of the composite nozzle.

[0024] Figure 8 It is a cross-sectional view of the first structural form of the composite nozzle.

[0025] Fig. 9 It is a schematic diagram of the first traction device and the composite processing mechanism.

[0026] Fig.10 It is a cross-sectional view of the second structural form of the composite nozzle.

[0027] Fig.11 This is a cross-sectional view of the third structural form of the composite nozzle.

[0028] Fig.12 This is a cross-sectional view of the fourth structural form of the composite nozzle.

[0029] Fig.13 It is a cross-sectional view of the fifth structural form of the composite nozzle.

[0030] Fig.14 It is a cross-sectional view of the sixth structural form of the composite nozzle.

[0031] Numbers in the figure: 1. Main inner tube processing mechanism; 2. Backup inner tube processing mechanism; 3. Composite processing mechanism; 4. First traction device; 5. Second traction device; 6. Cutting structure; 7. Control unit; 8. Inner head; 9. Outer head; 10. Molding chamber; 11. Inner tube accommodating chamber; 12. Heat insulation structure; 13. Inner tube; 14. Outer tube; 15. Protruding structure. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order to make the technical solution of the present application clearer and easier to understand, the system of the present application is first introduced below. Figure 5 As shown in the figure, this figure is a schematic diagram of the structure of the composite nozzle preparation device for the oral nozzle provided in the embodiment of the present application. The device includes: Multiple groups of processing units and at least one spare inner tube processing mechanism 2, each group of processing units includes a main inner tube processing mechanism 1 and a composite processing mechanism 3; here, the multi-group setting method helps to improve production efficiency, and under large-scale production needs, multiple batches of composite nozzles can be produced at the same time. The existence of the spare inner tube processing mechanism 2 is to deal with possible failures or abnormal conditions of the main inner tube processing mechanism 1. When the main inner tube processing mechanism 1 cannot normally output inner tubes that meet the quality requirements, the spare inner tube processing mechanism 2 can intervene in time, take over the work of the main inner tube processing mechanism 1, and continuously deliver qualified inner tubes to the composite processing mechanism 3, thereby ensuring that the entire composite nozzle preparation production line will not be shut down for a long time due to problems in the inner tube supply link.

[0035] The main inner tube processing mechanism 1 and the backup inner tube processing mechanism 2 both include a first traction device 4 corresponding thereto; the first traction device 4 is used to guide the inner tube output by the main inner tube processing mechanism 1 or the backup inner tube processing mechanism 2 to the inner tube feeding end of the composite processing mechanism 3; the composite processing mechanism 3 is used to receive the inner tube and make an outer tube outside the inner tube to form a composite nozzle, and the composite processing mechanism 3 includes a second traction device 5, and the second traction device 5 is used to guide the movement of the composite nozzle; The feeding end of the first traction device 4 and the discharging end of the second traction device 5 are respectively provided with a cutting structure 6, and the cutting structure 6 is used to cut the corresponding inner tube or composite nozzle; The control unit 7 is in communication with the processing unit and is used to control the processing unit to perform corresponding actions.

[0036] The main inner tube processing mechanism 1 at least includes an inner tube extrusion device, an inner tube vacuum sizing device, an inner tube cooling device, an inner tube diameter measuring device and a first traction device 4; similarly, the configuration of the standby inner tube processing mechanism 2 is exactly the same as that of the main inner tube processing mechanism 1, and the purpose is to ensure that the inner tubes outputted by each can smoothly and stably enter the composite processing mechanism 3. The composite processing mechanism 3 at least includes a composite head structure, an outer tube vacuum sizing device, an outer tube cooling device, an outer tube diameter measuring device and a second traction device 5.

[0037] The cutting structure 6 disposed at the feeding end of the first traction device 4 is mainly used for cutting the inner tube, while the cutting structure 6 located at the discharging end of the second traction device 5 is used for cutting the composite nozzle.

[0038] Moreover, in the actual composite nozzle preparation production line, there are six temperature control zones for the processing of the inner tube, which are assumed to be the first temperature control zone, the second temperature control zone, the third temperature control zone, the fourth temperature control zone, the fifth temperature control zone and the sixth temperature control zone; the first temperature control zone, the second temperature control zone, the third temperature control zone and the fourth temperature control zone are sequentially arranged in the barrel of the inner tube extrusion device along the material conveying direction, and the fifth temperature control zone and the sixth temperature control zone are sequentially arranged in the inner tube vacuum sizing device along the material conveying direction. For example, the preset temperature range of the first temperature control zone is 180-190℃, the preset temperature range of the second, third and fourth temperature control zones is 200-210℃, and the preset temperature range of the fifth and sixth temperature control zones is 190-200℃.

[0039] In addition, if Figure 5 As shown, the present device also includes a waste storage area A, which is used to store unqualified inner tubes for subsequent melting and reuse. The waste storage area A is connected to the main inner tube processing mechanism 1, the spare inner tube processing mechanism 2 and the composite processing mechanism 3 through a conveyor belt B, so that the unqualified inner tubes transmitted by the corresponding mechanisms are sent to the waste storage area A via the conveyor belt B. Here, the mounting bases of the above-mentioned main inner tube processing mechanism 1, the spare inner tube processing mechanism 2 and the composite processing mechanism 3 are all equipped with a reversing structure for driving them to rotate. The reversing structure is, for example, a driving motor, whose driving shaft is connected to a bearing turntable, and the corresponding processing mechanism is installed on the bearing turntable, thereby driving the corresponding processing mechanism to rotate and reverse.

[0040] Further, the composite processing mechanism includes a composite head structure; Figure 6 As shown, the composite head structure includes: An inner die head 8 and an outer die head 9 sleeved outside the inner die head 8; a molding chamber 10 is formed between the outer die head 9 and the inner die head 8; The inner head 8 has an inner tube accommodating cavity 11 coaxially arranged with the molding cavity 10, and the inner head 8 is provided with a first opening and a second opening communicating with the inner tube accommodating cavity 11, the first opening is used to receive the inner tube output by the main inner tube processing mechanism 1 or the spare inner tube processing mechanism 2; the second opening is used to output the composite nozzle; a heat insulation structure 12 is provided at the first opening; An outer tube feed port and an outer tube discharge port are provided on the outer head 9 . The outer tube feed port is communicated with the molding chamber 10 , and the discharge port is communicated with the second opening and the inner tube accommodating chamber 11 .

[0041] Among them, the inner head 8 has an inner tube accommodating chamber 11, which is coaxially arranged with the molding chamber 10. The main function of the inner tube accommodating chamber 11 is to accommodate the inner tube output from the main inner tube processing mechanism 1 or the backup inner tube processing mechanism 2, and provide a stable transmission and positioning space for the inner tube in the composite head structure. The first opening is used to receive the inner tube output from the main inner tube processing mechanism 1 or the backup inner tube processing mechanism 2, and the second opening is used to output the composite nozzle. After being pulled by the first traction device 4, the inner tube enters the inner tube accommodating chamber 11 and continues to move forward along its axial direction to be compounded with the outer tube material injected subsequently. This coaxial arrangement can ensure that the center position of the inner tube is stable during the entire compounding process, which is conducive to the outer tube material being evenly wrapped around the inner tube, thereby ensuring the structural symmetry and isotropy of the composite nozzle.

[0042] During the preparation of the composite nozzle, when the inner tube is output from the main inner tube processing mechanism 1 or the backup inner tube processing mechanism 2, it has a certain temperature, and the temperature environment of the outer tube material injection and the molding chamber 10 in the composite head structure is inconsistent with the temperature requirement of the inner tube. The thermal insulation structure 12 can effectively block the transfer of heat between the inside and the outside, and prevent the temperature of the inner tube from being affected by the external environment (especially the temperature of the molding chamber 10 and the outer tube material) and changing, thereby ensuring the physical properties and dimensional stability of the inner tube, preventing deformation of the inner tube and changes in material properties due to temperature fluctuations, and further ensuring that the quality of the composite nozzle is not affected. Here, the thermal insulation structure 12 is a cooling water circulation jacket structure, which plays a good thermal insulation role.

[0043] The outer tube feed port is connected to the molding chamber 10, and is used to provide an entrance channel for the outer tube material to enter the composite head structure; the discharge port is connected to the second opening and the inner tube accommodating chamber 11, so that after the outer tube material wraps the inner tube in the molding chamber 10, it can be output from the second opening together with the inner tube through the discharge port to form a complete composite nozzle.

[0044] In addition, the present application also provides a composite nozzle made of a composite nozzle preparation device for an oral nozzle, such as Figure 7 and Figure 8 As shown, the composite nozzle includes: The inner tube 13 and the outer tube 14 are coaxially arranged, the tube cavity of the inner tube 13 forms a water flow channel, the inner wall of the outer tube 14 has a plurality of protrusion structures 15, and an air flow channel is formed between the protrusion structures 15 and the inner tube 13; the cross-section of the protrusion structure 15 is triangular, and the tip of the triangle is connected to the inner tube 13.

[0045] The composite nozzle made by the composite nozzle preparation device for the oral nozzle is a standard composite nozzle of a preset length, which is referred to as the composite nozzle for convenience of description. The inner tube 13 and the outer tube 14 can be further welded and connected by ultrasonic welding.

[0046] Here, Figure 7 The composite nozzle shown is used in an oral nozzle. In this case, the composite nozzle is in a bent form, which is more convenient to use. In actual production, the standard composite nozzle cut to a preset length is a linear structure.

[0047] In the actual application scenario of the oral nozzle, the water flow channel is used to transport water for cleaning the oral cavity. The outer tube 14 is coaxially sleeved outside the inner tube 13, and together with the inner tube 13, it forms the overall structure of the composite nozzle. In the actual use of the oral nozzle, the air flow channel can introduce external air. When it is combined with the water flow in the inner tube 13, the water flow can be broken up through the special outlet structure of the nozzle, forming a spray-like water flow output, achieving a better oral cleaning effect.

[0048] The triangular tip of the protruding structure 15 is connected to the inner tube 13 at a point, that is, the tip is tangent to the outer wall of the inner tube 13. When the gas passes through the air flow channel, the triangular shape of the protruding structure 15 can quickly flow back and fully interact with the liquid substance flowing out of the water flow channel. For example, when the oral nozzle is used, the gas can better disperse and atomize the liquid substance to form a uniform and stable spray.

[0049] Furthermore, when the outer tube 14 is subjected to external pressure or undergoes certain deformation during use, the protruding structure 15 can better maintain its own shape and relative positional relationship with the inner tube 13 by virtue of its triangular stable structure, thereby ensuring the structural stability of the airflow channel and avoiding the airflow channel being damaged or deformed due to external forces and other factors, thereby affecting the normal delivery of the airflow. Furthermore, when airflow enters the airflow channel formed between the protruding structure 15 and the inner tube 13, the inclined surface of the triangle can play a role similar to a guide plate, allowing the airflow to flow in the channel in a specific direction and in a relatively stable state, which helps to achieve more uniform and effective airflow delivery, and provides good airflow conditions for subsequent related functions of the oral nozzle (such as producing a specific spray effect, etc.).

[0050] Here, the outer diameter of the inner tube 13 is, for example, 1-2 mm, and the outer diameter of the outer tube 14 is, for example, 3-5 mm.

[0051] In addition, if Fig.10 As shown, the cross-sectional shape of the protrusion structure 15 is similar to a rectangular shape, which can form four arc-shaped water flow channels in the space between the inner tube 13 and the outer tube 14. Fig.11As shown, the cross-sectional shape of the protrusion structure 15 is a rectangular shape, which can form two arc-shaped water flow channels in the space between the inner tube 13 and the outer tube 14. Fig.12 As shown, the cross-sectional shape of the protrusion structure 15 is a rectangular shape, which can form four arc-shaped water flow channels in the space between the inner tube 13 and the outer tube 14. Fig.13 As shown, the cross-sectional shape of the protrusion structure 15 is a rectangular shape, which can form five arc-shaped water flow channels in the space between the inner tube 13 and the outer tube 14. Fig.14 As shown, the cross-sectional shape of the protrusion structure 15 is a rectangular shape, which can form six arc-shaped water flow channels in the space between the inner tube 13 and the outer tube 14 .

[0052] The above introduction is only for example. In actual application, different numbers of protrusion structures 15 can be set according to needs to form different numbers of water flow channels, so as to achieve uniform and effective air flow conveying effect.

[0053] like Figure 1 As shown, the present application provides a method for preparing a composite nozzle for an oral nozzle, the method comprising the following steps: S100, detecting in real time the processing parameters of the main inner tube processing mechanism; the processing parameters include a first processing temperature of the main inner tube processing mechanism and a first traction speed of its first traction device.

[0054] It should be noted that the first processing temperature has an impact on the physical properties and molding effect of the inner tube material. Different inner tube materials have corresponding processing temperature ranges. Too high a temperature may cause excessive softening of the material, deformation, uneven internal structure, etc. For example, the thickness of the inner tube wall may be inconsistent, affecting its subsequent function in the composite nozzle; if the temperature is too low, the plasticity of the material deteriorates, and it is difficult to form according to the preset specifications, which may cause defects such as roughness and cracks on the inner tube surface, seriously affecting the product quality and performance. The pulling speed determines the speed at which the inner tube is output from the main inner tube processing mechanism. If the pulling speed is too fast, the inner tube is quickly pulled out before it has fully reached the ideal molding state, which may cause the size of the inner tube to not meet the preset requirements, such as a smaller diameter and thinner wall; on the contrary, if the pulling speed is too slow, it will affect production efficiency, and may cause the inner tube to stay in the processing area for too long, causing quality problems due to excessive heat, such as local aging of the material.

[0055] By real-time monitoring of the first processing temperature and the first pulling speed, it is ensured that both are stable within a reasonable preset process parameter range, so that the inner tube material can be processed under ideal conditions, ensuring that various quality indicators such as dimensional accuracy and material uniformity of the inner tube meet the requirements of subsequent composite nozzle production.

[0056] Here, the first processing temperature can be detected by using temperature sensors in each temperature control zone, and the first pulling speed can be detected by using a gyroscope.

[0057] The first processing temperature here is a general term for the temperatures of the six temperature control zones mentioned above. In fact, each temperature control zone has a corresponding processing temperature range for processing inner tubes of different materials. That is, when judging whether the first processing temperature exceeds the preset process parameter range, it refers to whether the actual temperature of each temperature control zone exceeds the corresponding processing temperature range. If there is at least one temperature control zone whose actual temperature exceeds the corresponding processing temperature range, it is determined that the first processing temperature exceeds the preset process parameter range. The first traction speed corresponds to the preset speed range corresponding to the processing of inner tubes of different materials. The preset process parameter range and the preset speed range can be obtained according to industry standard requirements or based on experience.

[0058] S200, when the processing parameters exceed the corresponding preset processing parameter range, adjust the corresponding processing parameters, and detect in real time the first size parameter of the inner tube output by the main inner tube processing mechanism to the input end of the first traction device.

[0059] It should be noted that when the processing parameters exceed the corresponding preset process parameter range, it means that the production process has deviated from the normal state. If it is not adjusted in time, it is very likely that a large number of inner tubes that do not meet the quality requirements will be produced, thereby affecting the subsequent assembly and overall performance of the composite nozzle. Therefore, it is necessary to take measures to adjust the corresponding parameters quickly. If the first processing temperature of the main inner tube processing mechanism is too high, the control system will send an instruction to the heating device to reduce the heating power by adjusting the power adjustment module of the heating equipment (for example, for electric heating, the power supply voltage and current of the heating wire can be changed or the heating duty cycle can be adjusted) so that the processing temperature gradually drops to the preset reasonable range. On the contrary, if the temperature is too low, the heating power is increased accordingly to promote the temperature to rise and ensure that the inner tube material can be processed and formed under a suitable temperature environment. In the case where the first traction speed of the first traction device exceeds the preset speed range, if the first traction speed is too fast, the control system will use the speed regulating device (commonly such as the frequency converter) equipped with the motor of the first traction device to reduce the speed of the motor by reducing the frequency of the frequency converter output, thereby slowing down the traction speed, so that the traction rhythm of the inner tube matches the forming speed of the inner tube in the processing mechanism. If the traction speed is too slow, the frequency of the inverter will be increased accordingly, and the motor speed will be increased to speed up the traction speed, thereby ensuring production efficiency while maintaining the stability of the inner tube quality.

[0060] Furthermore, while adjusting the processing parameters that exceed the preset process parameter range, the first dimensional parameter of the inner tube output by the main inner tube processing mechanism to the input end of the first traction device is detected in real time. Here, the first dimensional parameter refers to the wall thickness of the inner tube, which can be detected by an infrared sensor. By observing the changes in the dimensional parameters of the inner tube in real time, the effect of the previous adjustment of the processing parameters (temperature and traction speed) can be intuitively verified.

[0061] Furthermore, the method further comprises the following steps: From the moment the inner tube is cut at the abnormal position, multiple first size parameters collected within a preset time period are obtained; if the number of first size parameters that are continuously within the preset size range within the preset time period is greater than or equal to the preset number, it is determined that the first size parameters of the inner tube within the preset time period are restored to the preset size range.

[0062] It should be noted that multiple first dimension parameters are collected in real time from the moment of cutting to determine whether the quality of the inner tube is likely to return to normal and whether it can be put back into the normal production process. The criterion for judging whether it has returned to normal is: if the number of first dimension parameters that are continuously within the preset dimension range is greater than or equal to the preset number within the preset time period, it is determined that the first dimension parameters of the inner tube have returned to the preset dimension range within the preset time period. Here, the preset dimension range can be set according to actual conditions. The preset number can be set according to actual conditions.

[0063] S300. If it is determined that the first size parameter exceeds the preset size range, the current detection position is taken as the abnormal position of the inner tube, the inner tube is cut at the abnormal position, and the conveying direction of the inner tube that the main inner tube processing mechanism continues to output is switched to the waste storage area. At the same time, the first size parameter of the inner tube conveyed to the waste storage area is continuously detected in real time, and the stopping time of the composite processing mechanism is determined according to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, and the stopping feeding information is sent to the composite processing mechanism, and the stopping feeding information carries the stopping feeding time, so that the composite processing mechanism processes the inner tube conveyed to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length.

[0064] It should be noted that if the first size parameter of the inner tube is judged to be out of the preset size range, it means that the inner tube has failed to meet the quality requirements at the current detection position. The current detection position is defined as the abnormal position of the inner tube and the inner tube is cut here, which effectively prevents the inner tubes with unqualified sizes from continuing to flow to the subsequent composite processing links and avoids them from being mixed into qualified products, thereby controlling the molding quality of the composite nozzle from the source.

[0065] After the cutting is completed, the conveying direction of the inner tubes that continue to be output by the main inner tube processing mechanism should be immediately switched to the waste storage area to achieve reasonable diversion management of unqualified inner tubes and avoid the accumulation of unqualified inner tubes on the production line. The waste storage area stores the unqualified inner tubes for subsequent melting and reuse.

[0066] While the inner tubes have been judged as unqualified and sent to the waste storage area, their first dimensional parameters are continuously monitored, and these first dimensional parameters are used as criteria to determine whether the main inner tube processing mechanism can continue to supply inner tubes to the composite processing mechanism.

[0067] The time to stop feeding is accurately determined based on many factors, such as the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing. After determining the time to stop feeding the composite processing mechanism, a stop feeding message carrying the time to stop feeding is sent to the composite processing mechanism. After receiving this information, the composite processing mechanism will stop receiving the inner tube material at the specified time node, ensuring that the entire production process can operate in an orderly and coordinated manner when facing abnormal inner tube quality, realizing refined management of the production process, and optimizing the configuration and utilization efficiency of production resources while ensuring product quality.

[0068] S400. If it is detected within a preset time period that the first size parameter of the inner tube is restored to a preset size range, the inner tube is cut at the restored position, and the conveying direction of the inner tube that continues to be output by the main inner tube processing mechanism is restored to the composite processing mechanism; otherwise, the composite processing mechanism is switched to cooperate with the backup inner tube processing mechanism.

[0069] It should be noted that if the first size parameter of the inner tube is detected to be restored to the preset size range within the preset time period, it indicates that the quality of the inner tube has returned to normal after a short fluctuation. At this time, the current detection position is used as the recovery position of the inner tube and cutting is performed here, removing the transition area of ​​the inner tube that may have been affected by the parameter fluctuation but has now returned to normal, ensuring the consistency and stability of the quality of the inner tube entering the composite processing mechanism, providing a reliable raw material basis for the high-quality preparation of the composite nozzle, and avoiding the potential impact on the overall performance of the final composite nozzle due to slight fluctuations in the quality of the inner tube. After completing the cutting of the recovery position, the conveying direction of the inner tube that continues to be output by the main inner tube processing mechanism is restored to the composite processing mechanism, so that the production process can be seamlessly connected back to normal, and qualified inner tubes are continued to be used for the processing and production of composite nozzles, avoiding long-term interruption of production due to short-term parameter abnormalities, thereby maintaining high production efficiency, reducing the cost increase and production capacity loss caused by equipment idling, etc., ensuring the continuity and stability of the entire production process, ensuring the completion of production tasks on time, and meeting the market demand for composite nozzle products.

[0070] If it is detected that the first dimension parameter of the inner tube has not recovered to the preset dimension range within the preset time period, it means that the main inner tube processing mechanism may have a serious fault or problem, and it is difficult to restore the normal production state in the short term. In this case, the composite processing mechanism is switched to cooperate with the backup inner tube processing mechanism to ensure that the production of the composite nozzle will not be completely stagnant due to the failure of the main inner tube processing mechanism. At the same time, this also buys time for maintenance personnel to overhaul the main inner tube processing mechanism, enhances the risk resistance of the production process, and ensures production stability and sustainability.

[0071] The present application detects the processing parameters of the main inner tube processing mechanism in real time and adjusts them. If it is determined that the first size parameter of the inner tube exceeds the preset size range, the current detection position is taken as an abnormal position and cut to prevent defective products from continuing to flow into subsequent processes, prevent problems from accumulating and expanding, and effectively reduce raw material waste and rework costs. The conveying direction of the inner tube that the main inner tube processing mechanism continues to output is switched to the waste storage area, and the first size parameter of the inner tube conveyed to the waste storage area is continuously monitored in real time. If it is found that the first size parameter of the inner tube is restored to the preset size range within the preset time period, it is cut at the recovery position and the conveying direction of the inner tube is restored to the composite processing mechanism. This can seamlessly connect the production process, avoid unnecessary shutdown and restart, maintain an efficient production rhythm, and reduce equipment idling and idle production capacity. If it is detected that the first size parameter of the inner tube cannot be restored within the preset time period, the spare inner tube processing mechanism and the composite processing mechanism are promptly activated to cooperate in the production of composite nozzles to ensure that the entire composite nozzle preparation production line is not completely shut down, thereby ensuring production and processing efficiency. In addition, according to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism and the equipment spacing, the stop feeding time of the composite processing mechanism is determined, and the stop feeding information carrying the stop feeding time is sent to the composite processing mechanism, so as to guide the composite processing mechanism to process the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length, thereby effectively reducing the waste of raw materials.

[0072] In addition, the equipment size is the sum of the length of the first traction device and the straight-line distance between the inner tube feed end of the composite processing mechanism and its outer tube material feed end; the equipment spacing is the straight-line distance between the output end of the first traction device and the inner tube feed end of the composite processing mechanism.

[0073] like Figure 2 As shown, according to the current moment, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting moment of the last cutting and forming of the standard composite nozzle by the composite processing mechanism and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, the moment of stopping feeding of the composite processing mechanism is determined, which specifically includes the following steps: S301, determining the length of the composite nozzle output by the composite processing mechanism after the last cutting according to the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the current time and the second pulling speed.

[0074] Here, according to the cutting time of the standard composite nozzle formed by the composite processing mechanism last time, the current time and the second traction speed, the length of the composite nozzle output by the composite processing mechanism after the last cutting is determined, which specifically includes the following steps: According to the difference between the cutting time of the standard composite nozzle formed by the composite processing mechanism last time and the current time, the delivery time of the composite nozzle output by the composite processing mechanism since the last cutting is calculated; according to the delivery time of the composite nozzle output by the composite processing mechanism since the last cutting and the second traction speed, the length of the composite nozzle output by the composite processing mechanism since the last cutting is determined.

[0075] The length of the composite nozzle output by the composite processing mechanism after the last cutting can be calculated according to the following formula: ; in, is the length of the composite nozzle output by the composite processing mechanism since the last cutting. is the second traction speed, For the current moment, It is the cutting time of the standard composite nozzle that was cut and formed by the composite processing mechanism last time.

[0076] That is, by recording the specific moment of the last cutting of the composite processing mechanism (this moment can be accurately obtained by the time recording device on the production line, such as a high-precision clock module installed on the composite processing mechanism), and then combining it with the current moment (the clock module also provides real-time time information), the difference between the two can be used to obtain the conveying time of the composite nozzle output by the composite processing mechanism since the last cutting (the time from the last cutting to the present); this conveying time represents the duration of the composite nozzle being in the conveyed state during this time period. Since the composite nozzle is guided and conveyed by the second traction device, the length of the composite nozzle output by the composite processing mechanism since the last cutting can be obtained by multiplying this conveying time by the second traction speed.

[0077] S302, calculating the length of the available inner tube according to the length of the first traction device, the straight-line distance between the output end of the first traction device and the inner tube feed end of the composite processing mechanism, and the straight-line distance from the inner tube feed end of the composite processing mechanism to the outer tube material feed end of the composite processing mechanism; the length of the available inner tube is the length of the inner tube that can be used to produce the composite nozzle by the main inner tube processing mechanism since the last cutting.

[0078] Here, the available inner tube length refers to the total length of the inner tube that can be currently used to be processed into a standard composite nozzle; it is used to subsequently determine how many standard composite nozzles can be processed and how much residual inner tube is left.

[0079] The length of the available inner tube can be calculated according to the following formula: ; in, is the length of the available inner tube, It is the sum of the length of the first traction device, the straight-line distance between the output end of the first traction device and the inner tube feed end of the composite processing mechanism, and the straight-line distance from the inner tube feed end of the composite processing mechanism to the outer tube material feed end of the composite processing mechanism.

[0080] That is: the length of the available inner tube depends on the cumulative length of several parts. Specifically, the length of the first traction device represents the inner tube part it covers; the straight-line distance between the output end of the first traction device and the inner tube feed end of the composite processing mechanism is the inner tube part occupied during the process of the inner tube being transferred from the output end of the first traction device to the inner tube feed end of the composite processing mechanism, and is also the potential inner tube part that can be used for subsequent processing; the straight-line distance from the inner tube feed end of the composite processing mechanism to the outer tube material feed end of the composite processing mechanism is the part of the inner tube inside the composite processing mechanism, and it is also the inner tube part that has participated in the subsequent composite nozzle production; by knowing the inner tube lengths of these parts and adding them up, the available inner tube length can be obtained.

[0081] like Fig. 9 As shown, is the length of the first traction device, is the straight-line distance between the output end of the first traction device and the inner tube feeding end of the composite processing mechanism, It is the straight-line distance from the inner tube material feeding end of the composite processing mechanism to the outer tube material feeding end of the composite processing mechanism. ,Right now It is the available inner tube length from the input end of the first traction device to the outer tube material feeding end of the composite processing mechanism.

[0082] By adding up the lengths of these parts, we can fully calculate the length of the inner tube that can be used to produce the composite nozzle by the main inner tube processing mechanism since the last cutting, that is, the length of the available inner tube, which is determined based on the physical structure of the entire production system and the distribution of the inner tubes therein.

[0083] S303. Calculate the total number of standard composite nozzles with preset lengths and the first length of the remaining inner tubes based on the length of the composite nozzle output by the composite processing mechanism since the last cutting, the length of the available inner tube, and the preset length of the standard composite nozzle, which are processed by the composite processing mechanism from the inner tubes delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position, and the first length of the remaining inner tubes; the remaining inner tubes are the inner tube portions remaining after the composite processing mechanism processes the inner tubes delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles with preset lengths.

[0084] Here, the preset length is set according to actual needs.

[0085] The total number of standard composite nozzles that can be processed can be obtained through integer division (the value of the quotient), and the length corresponding to the remainder is the first length of the remaining inner tube.

[0086] The total number of standard composite nozzles that the composite processing mechanism processes the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into a preset length and the first length of the residual inner tube can be calculated according to the following formula: ; in, The preset length of the standard composite nozzle, The total number of standard composite nozzles that are processed by the composite processing mechanism into a preset length by the composite processing mechanism before the main inner tube processing mechanism cuts the abnormal position.

[0087] That is: the integer and the corresponding remainder are obtained by dividing the length of the available inner tube by the preset length of the standard composite nozzle. The integer refers to the total number of standard composite nozzles that can be processed with the length of the available inner tube; the remainder is the remaining length of the inner tube after processing a complete number of standard composite nozzles, that is, the first length of the remaining inner tube, which can reflect the remaining situation of the inner tube after completing the integer multiple processing.

[0088] S304, determining the time to stop feeding the compound processing mechanism based on the current time, the total number of standard compound nozzles and the cutting cycle that the compound processing mechanism processes the inner tube delivered to the compound processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into a preset length, the first length of the remaining inner tube, and the first traction speed of the first traction device.

[0089] Here, the cutting cycle refers to the time interval between processing a standard composite nozzle. For example, if a standard composite nozzle is processed every 30 seconds, then the cutting cycle is 30 seconds. The total time required to process these integer number of standard composite nozzles can be obtained by multiplying the known total number - 1 by the cutting cycle.

[0090] Based on the above content, it can be known that the feeding stop time can be calculated according to the following formula: ; in, To stop feeding time, For the current moment, The cutting time of the standard composite nozzle formed by the composite processing mechanism last time. is the cutting cycle, is the first length of the inner tube of the residual material, is the first traction speed of the first traction device.

[0091] Right now: is the time from the last cutting moment of the composite machining mechanism to the current moment, It is the time remaining from the current moment to the end of the next complete cutting cycle in a cutting cycle. is the total time to complete the processing of n-1 standard composite nozzles, is the total time from the last cutting time to process the entire usable inner tube into a composite nozzle. It is the time required for the surplus inner tube to move in the composite processing mechanism; the time to stop feeding is obtained by subtracting the time required for the surplus inner tube to move in the composite processing mechanism from the total time required to process the entire usable inner tube into a composite nozzle starting from the last cutting moment. The purpose is that after processing n standard composite nozzles, there is no need to supply outer tube material for the surplus surplus inner tube, thereby achieving precise control of the feeding process and avoiding material waste and unreasonable arrangement of the production process.

[0092] By determining the moment when the composite processing mechanism stops feeding, the orderliness of production and the rationality of resource utilization under abnormal circumstances are guaranteed, thereby maintaining the stable operation of the entire oral nozzle composite nozzle preparation equipment.

[0093] Furthermore, if Figure 3 As shown, the method also includes the following steps: S500, obtaining the supply time of the main inner tube processing mechanism or the backup inner tube processing machine; the supply time is the time when the main inner tube processing mechanism transports the inner tube with the first size parameter restored to the preset size range to the input end of its first traction device, or the time when the backup inner tube processing mechanism switches to cooperate with the composite processing mechanism and transports the output inner tube to the input end of its first traction device.

[0094] It should be noted that when the first size parameter of the inner tube output by the main inner tube processing mechanism is restored to within the preset size range, and the time corresponding to the moment when the inner tube output by the main inner tube processing mechanism begins to be transported to the input end of the first traction device is the supply time. When a more serious problem occurs in the main inner tube processing mechanism, resulting in the first size parameter of its inner tube being unable to be restored to the preset size range within the preset time period, and then the backup inner tube processing mechanism is activated to cooperate with the composite processing mechanism, the moment when the backup inner tube processing mechanism switches to cooperate with the composite processing mechanism and transports the inner tube output by it to the input end of its first traction device is the supply time.

[0095] S600. Determine the restart feeding time of the compound processing mechanism according to the supply time, the equipment size of the first traction device and the compound processing mechanism, the equipment spacing and the first traction speed, and send restart feeding information to the compound processing mechanism. The restart feeding information carries the restart feeding time, so that the compound processing mechanism can transport the outer tube material to the surface of the inner tube when the inner tube output by the main inner tube processing mechanism or the backup inner tube processing mechanism is transmitted to the inside of the compound processing mechanism.

[0096] Among them, Figure 4 As shown, the restart feeding time of the composite processing mechanism is determined according to the supply time, the equipment size of the first traction device and the composite processing mechanism, the equipment spacing and the first traction speed, which specifically includes the following steps: S601. Calculate a first distance according to device sizes and device spacing between a first traction device and a composite processing mechanism.

[0097] Here, the first distance is obtained by summing the equipment sizes of the first traction device and the composite processing mechanism and the equipment spacing.

[0098] S602, calculating a first conveying time according to the first distance and the first traction speed; the first conveying time is the time taken for the inner tube to be conveyed from the input end of the first traction device to a position inside the composite processing mechanism corresponding to the feeding end of the outer tube material.

[0099] Here, the first conveying time refers to the time required for the inner tube to be conveyed from the input end of the first traction device to a position inside the composite processing mechanism corresponding to the outer tube material feeding end.

[0100] S603, taking the supply time as the starting time, and recording the time after the first conveying time as the time to restart feeding.

[0101] The supply time serves as the starting time reference point for the inner tube to start supplying to the subsequent process in a qualified state again. The first conveying time specifies how long it takes for the inner tube to be transported to the inside of the composite processing mechanism and to the position corresponding to the material feeding end of the outer tube, starting from the supply time. This moment is the restart feeding time.

[0102] The above restart feeding time can be calculated according to the following formula: ; in, To restart the feeding time, To provide time.

[0103] Right now: The sum of the length of the first traction device, the straight-line distance between the output end of the first traction device and the inner tube feed end of the composite processing mechanism, and the straight-line distance from the inner tube feed end of the composite processing mechanism to the outer tube material feed end of the composite processing mechanism; is the time required for the inner tube to move from the input end of the first traction device to the outer tube material feeding end of the composite processing mechanism at the first traction speed (first conveying time); starting from the supply time, The last moment is the time to restart feeding.

[0104] After determining the restart feeding time of the composite processing mechanism, the restart feeding information is sent to the composite processing mechanism, and the restart feeding information carries the restart feeding time. After receiving the restart feeding information, the composite processing mechanism can accurately transport the outer tube material to the inner tube surface according to the time indication therein when the inner tube output by the main inner tube processing mechanism or the backup inner tube processing mechanism is transmitted to the inside of the composite processing mechanism, and start the subsequent processing procedures of the composite nozzle, so that the entire production process can be smoothly restored from the previous pause state caused by abnormal inner tube quality or equipment switching to the normal composite nozzle preparation state, thereby ensuring the continuous advancement of production activities, improving production efficiency, and ensuring that the quality of the final composite nozzle product meets the requirements.

[0105] Furthermore, the method further comprises the following steps: Determine the total number of cutting times of the composite processing mechanism according to the total number of standard composite nozzles of preset lengths that the composite processing mechanism processes the inner tubes delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position; From the moment the composite processing mechanism receives the information to stop feeding, it starts counting the number of cuts until the number of cuts equals the total number of cuts, and switches the conveying direction of the composite processing mechanism to the waste storage area so that the remaining material is conveyed to the waste storage area through the inner tube.

[0106] It should be noted that when the composite processing mechanism receives the information to stop feeding, it starts counting the number of cuts. For example, the control unit starts the counting function, and each time a cutting operation is performed, the corresponding count is increased by 1, so as to track the number of completed cuts in real time. When the number of cuts is equal to the total number of cuts, the conveying direction of the composite processing mechanism is switched to the waste storage area, that is, the remaining residual inner tube (that is, the inner tube conveyed to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position is processed into an integer number of standard composite nozzles of preset lengths) is no longer suitable for continuing to participate in the normal composite nozzle production, and needs to be conveyed to the waste storage area. This part of the inner tube material can be melted and reused to minimize material waste.

[0107] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A method for preparing a composite nozzle for an oral nozzle, characterized in that: The invention is applied to a composite nozzle production line, wherein the composite nozzle production line comprises: a plurality of processing units and at least one spare inner tube processing mechanism, each processing unit comprises a main inner tube processing mechanism and a composite processing mechanism, the main inner tube processing mechanism and the spare inner tube processing mechanism both comprise a first traction device corresponding thereto; the first traction device is used to guide the inner tube output by the main inner tube processing mechanism or the spare inner tube processing mechanism to the inner tube feeding end of the composite processing mechanism; the composite processing mechanism is used to receive the inner tube and make an outer tube outside the inner tube to form a composite nozzle, and the composite processing mechanism comprises a second traction device, and the second traction device is used to guide the movement of the composite nozzle; the method comprises the following steps: Real-time detection of processing parameters of the main inner tube processing mechanism; the processing parameters include a first processing temperature of the main inner tube processing mechanism and a first traction speed of the first traction device thereof; When the processing parameters exceed the corresponding preset processing parameter range, the corresponding processing parameters are adjusted, and the first size parameter of the inner tube output by the main inner tube processing mechanism to the input end of the first traction device is detected in real time; If it is determined that the first size parameter exceeds the preset size range, the current detection position is taken as the abnormal position of the inner tube, the inner tube is cut at the abnormal position, the conveying direction of the inner tube that the main inner tube processing mechanism continues to output is switched to the waste storage area, and the first size parameter of the inner tube conveyed to the waste storage area is continuously detected in real time, and the stopping feeding time of the composite processing mechanism is determined according to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, and the stopping feeding information is sent to the composite processing mechanism, and the stopping feeding information carries the stopping feeding time, so that the composite processing mechanism processes the inner tube conveyed to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length; If it is detected within the preset time period that the first size parameter of the inner tube is restored to the preset size range, the inner tube is cut at the recovery position, and the conveying direction of the inner tube continued to be output by the main inner tube processing mechanism is restored to the composite processing mechanism; otherwise, the composite processing mechanism is switched to cooperate with the backup inner tube processing mechanism.

2. The method for preparing a composite nozzle for an oral spray head according to claim 1, characterized in that: The method further comprises the following steps: From the moment when the inner tube is cut at the abnormal position, a plurality of first size parameters collected within a preset time period are acquired; If the number of first size parameters that are continuously within the preset size range within the preset time period is greater than or equal to the preset number, it is determined that the first size parameter of the inner tube within the preset time period is restored to the preset size range.

3. The method for preparing a composite nozzle for an oral spray head according to claim 1, characterized in that: The method further comprises the following steps: Obtaining the supply time of the main inner tube processing mechanism or the backup inner tube processing machine; the supply time is the time when the main inner tube processing mechanism transports the inner tube whose first size parameter is restored to the preset size range to the input end of its first traction device, or the time when the backup inner tube processing mechanism switches to cooperate with the composite processing mechanism and transports the output inner tube to the input end of its first traction device; According to the supply timing, the equipment dimensions of the first traction device and the composite processing mechanism, the equipment spacing and the first traction speed, the restart feeding timing of the composite processing mechanism is determined, and restart feeding information is sent to the composite processing mechanism. The restart feeding information carries the restart feeding timing, so that the composite processing mechanism transports the outer tube material to the surface of the inner tube when the inner tube output by the main inner tube processing mechanism or the backup inner tube processing mechanism is transmitted to the interior of the composite processing mechanism.

4. The method for preparing a composite nozzle for an oral spray head according to claim 3, characterized in that: The equipment size includes the length of the first traction device and the straight-line distance between the inner tube feeding end of the composite processing mechanism and the outer tube material feeding end thereof; the equipment spacing includes the straight-line distance between the output end of the first traction device and the inner tube feeding end of the composite processing mechanism; the restart feeding time of the composite processing mechanism is determined according to the supply time, the equipment size of the first traction device and the composite processing mechanism, the equipment spacing and the first traction speed, and specifically includes the following steps: Calculating a first distance according to device sizes and device spacing between the first traction device and the composite processing mechanism; A first conveying time is calculated according to the first distance and the first traction speed; the first conveying time is the time taken for the inner tube to be conveyed from the input end of the first traction device to the outer tube material feeding end of the composite processing mechanism; The supply time is taken as the starting time, and the time after the first conveying time has passed is recorded as the restart feeding time.

5. The method for preparing a composite nozzle for an oral spray head according to claim 4, characterized in that: According to the current time, the first traction speed of the first traction device, the preset length of the standard composite nozzle, the second traction speed of the second traction device, the cutting time of the last cutting and forming of the standard composite nozzle by the composite processing mechanism and the cutting cycle of the standard composite nozzle, the equipment size of the first traction device and the composite processing mechanism, and the equipment spacing, the time to stop feeding the composite processing mechanism is determined, which specifically includes the following steps: Determining the length of the composite nozzle output by the composite processing mechanism after the last cutting according to the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the current time and the second pulling speed; Calculate the length of the available inner tube according to the length of the first traction device, the straight-line distance between the output end of the first traction device and the inner tube feeding end of the composite processing mechanism, and the straight-line distance from the inner tube feeding end of the composite processing mechanism to the outer tube material feeding end of the composite processing mechanism; the length of the available inner tube is the inner tube length that can be used to produce the composite nozzle by the main inner tube processing mechanism after the last cutting; According to the length of the composite nozzle output by the composite processing mechanism since the last cutting, the length of the available inner tube, and the preset length of the standard composite nozzle, the total number of standard composite nozzles of preset length processed by the composite processing mechanism from the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position and the first length of the remaining inner tube are calculated; the remaining inner tube is the inner tube portion remaining after the composite processing mechanism processes the inner tube delivered to the composite processing mechanism by the main inner tube processing mechanism before cutting the abnormal position into an integer number of standard composite nozzles of preset length; The time for stopping feeding of the compound processing mechanism is determined based on the current time, the total number of standard compound nozzles that the inner tube delivered to the compound processing mechanism by the main inner tube processing mechanism is processed into a preset length by the compound processing mechanism before cutting the abnormal position, the cutting cycle, the first length of the residual inner tube, and the first traction speed of the first traction device.

6. The method for preparing a composite nozzle for an oral spray head according to claim 5, characterized in that: Determining the length of the composite nozzle output by the composite processing mechanism after the last cutting according to the cutting time of the standard composite nozzle cut and formed by the composite processing mechanism last time, the current time and the second pulling speed, specifically comprising the following steps: According to the cutting time of the standard composite nozzle formed by the composite processing mechanism last time and the current time, the delivery time of the composite nozzle output by the composite processing mechanism since the last cutting is calculated; The length of the composite nozzle output by the composite processing mechanism after the last cutting is determined according to the conveying time of the composite nozzle output by the composite processing mechanism after the last cutting and the second pulling speed.

7. The method for preparing a composite nozzle for an oral spray head according to claim 5, characterized in that: The method further comprises the following steps: Determine the total number of cutting times of the composite processing mechanism according to the total number of standard composite nozzles of preset length processed by the composite processing mechanism from the inner tube delivered by the main inner tube processing mechanism to the composite processing mechanism before cutting the abnormal position; From the moment the composite processing mechanism receives the stop feeding information, the number of cutting times is counted until the number of cutting times is equal to the total number of cutting times, and the conveying direction of the composite processing mechanism is switched to the waste storage area so that the residual material inner tube is conveyed to the waste storage area.

8. A composite nozzle preparation device for an oral nozzle, characterized in that: A method for preparing a composite nozzle for an oral nozzle according to any one of claims 1 to 7, the device comprising: a plurality of processing units and at least one spare inner tube processing mechanism (2), each processing unit comprising a main inner tube processing mechanism (1) and a composite processing mechanism (3); The main inner tube processing mechanism (1) and the backup inner tube processing mechanism (2) both include a first traction device (4) corresponding thereto; the first traction device (4) is used to guide the inner tube output by the main inner tube processing mechanism (1) or the backup inner tube processing mechanism (2) to the inner tube feeding end of the composite processing mechanism (3); the composite processing mechanism (3) is used to receive the inner tube and manufacture an outer tube outside the inner tube to form a composite nozzle, and the composite processing mechanism (3) includes a second traction device (5), and the second traction device (5) is used to guide the movement of the composite nozzle; The feeding end of the first traction device (4) and the discharging end of the second traction device (5) are respectively provided with a cutting structure (6), and the cutting structure (6) is used to cut the corresponding inner tube or the composite nozzle; A control unit (7), the control unit (7) being communicatively connected to the processing unit and being used to control the processing unit to perform corresponding actions.

9. The composite nozzle preparation device for oral spray head according to claim 8, characterized in that: The composite processing mechanism comprises a composite head structure; The composite head structure comprises: An inner die head (8) and an outer die head (9) sleeved outside the inner die head (8); a molding chamber (10) is formed between the outer die head (9) and the inner die head (8); The inner machine head (8) has an inner tube accommodating cavity (11) coaxially arranged with the molding chamber (10), and the inner machine head (8) is provided with a first opening and a second opening communicating with the inner tube accommodating cavity (11), the first opening being used to receive the inner tube output by the main inner tube processing mechanism (1) or the backup inner tube processing mechanism (2); the second opening being used to output the composite nozzle; and a heat insulation structure (12) is provided at the first opening; The outer head (9) is provided with an outer tube feed port and an outlet port, the outer tube feed port is connected to the molding chamber (10), and the outlet port is connected to the second opening and the inner tube accommodating chamber (11).

10. A composite nozzle, characterized in that: The composite nozzle preparation device for the oral spray head according to claim 8 or 9 is made, and the composite nozzle comprises: An inner tube (13) and an outer tube (14) are coaxially arranged, the lumen of the inner tube (13) forming a water flow channel, the inner wall of the outer tube (14) having a plurality of protruding structures (15), an air flow channel being formed between the protruding structures (15) and the inner tube (13); the cross section of the protruding structures (15) is triangular, and the tip of the triangle is connected to the inner tube (13).

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