Multi-station nozzle assembling process based on automatic position compensation of liquid injection pipe and shape correction

Abstract

The application relates to a multi-station nozzle assembling process based on automatic position compensation and shape correction of a liquid jet pipe, which comprises the following steps: S1, preparation for plug-in assembly; S2, alignment plug-in assembly; S3, straightening, punching, position compensation. One aspect of the application is based on cooperation of the assembling station and the plug-in branch of the liquid jet pipe, and the shape correction and reset of the correction channel and the back-falling straightening are simultaneously performed, and the assembling is performed at the pressing limit position, so that the alignment plug-in assembly and punching of multiple nozzles with the same length are realized, the defects that the liquid jet pipe cannot be aligned and plugged in due to deformation of the liquid jet pipe are eliminated, and necessary conditions for high-quality plug-in assembly of the liquid jet pipe are provided; another aspect is based on synchronous position compensation and shaping of the liquid jet pipe, so that the length of the liquid jet pipe protruding part matches the length of the step part, and the alignment plug-in assembly is performed under the assistance of the reinforcing auxiliary of the sleeve plug-in end, the length of the plug-in sleeve joint is consistent, and the liquid jet pipe cannot be pulled down when the plug-in end back falls.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of sprayer processing equipment, and particularly relates to a multi-station nozzle assembly process based on automatic position compensation and shape correction of a liquid spraying pipe. BACKGROUND

[0002] A sprayer (or nozzle) is a tool or device that disperses liquid (or partially atomized solid) into fine droplets (or particles) through a specific unit and uniformly sprays them in a mist form to a target area. Its core function is to convert liquid substances into aerosol state (fine suspended particles), thereby improving use efficiency (such as coverage area, adhesion, etc.) or meeting specific scene requirements (such as disinfection, dust reduction, pesticide application, etc.). Common examples include perfume nozzles, which include a perfume nozzle, a pressing cap, and an outer cap. The pressing cap includes a bottle opening cap and a pressing cap with a spraying channel, which is in communication with the liquid outlet pipe of the perfume nozzle. When the pressing cap is pressed downward, the liquid in the perfume nozzle is compressed from the liquid outlet pipe and the spraying channel, thereby completing the spraying of the perfume. Specifically, the length of the liquid spraying pipe is cut based on the use requirement. However, in the actual insertion process, due to the deformation and difficulty in resetting of the liquid spraying pipe itself, the following insertion defects exist:

[0003] 1) The cutting formed is based on the insertion of the nozzle, that is, the part of the insertion port is punched. However, the punching process will cause the deformation of the insertion port of the liquid spraying pipe. Once the deformation cannot be restored to the natural state (or the end cannot be corrected), it will directly cause the difficulty in the alignment of the next nozzle body, and it is easy to cause misalignment, and there is also a probability that it cannot be inserted;

[0004] 2) The length of the liquid spraying pipe inserted into the outer periphery of the nozzle body is difficult to control. However, if the insertion is too short, it will lead to a high probability of falling off, and it is difficult to control the qualified rate of the product;

[0005] 3) In the conventional insertion process, the pipe end expands outward due to insertion and tightens in the inner wall of the insertion head. When the insertion is completed, the insertion head will pull the liquid spraying pipe during the falling process, thereby causing insertion failure. At the same time, the insertion head cannot effectively straighten the liquid spraying pipe, thereby affecting the length of the punched pipe and the qualified rate of the product;

[0006] 4) The liquid spraying pipe used is generally in a rolled shape. When the liquid spraying pipe itself is extruded or deformed, it is also difficult to align and insert, that is, the disassembly and assembly strainability is very poor;

[0007] 5) Under the premise of continuous supply of the liquid spraying pipe, the assembly of a single nozzle is generally carried out. Therefore, the assembly efficiency is low, and the insertion process will affect the assembly quality of the nozzle body if it is not carried out at the pressing limit position. SUMMARY

[0008] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide an improved multi-station nozzle assembly process based on automatic position compensation and shape correction of liquid injection pipes.

[0009] To solve the above technical problems, the technical solutions adopted by the present application are as follows:

[0010] A multi-station nozzle assembly process based on automatic position compensation and shape correction of liquid injection pipes, which employs an assembly device including a positioning unit of a nozzle body and an insertion unit of a liquid injection pipe, wherein the liquid inlet end of the nozzle body has a stepped portion with a gradually decreasing outer diameter and a disassembly portion extending downward from the bottom of the stepped portion, the positioning unit has a plurality of assembly stations arranged in alignment and at intervals, and the insertion unit has a liquid injection pipe insertion branch corresponding to each assembly station, each liquid injection pipe insertion branch has a shape correction channel capable of multi-point limiting contact from the outer periphery to restore the deformation, and a punching assembly arranged vertically with the shape correction channel, wherein the punching assembly performs horizontal punching across the shape correction channel, and the process includes the following steps:

[0011] S1, insertion preparation

[0012] The nozzle body is positioned downward from the liquid inlet end in the assembly station, and each liquid injection pipe insertion branch forms an insertion pipe segment by protruding from the end of the shape correction channel after correcting the shape of the liquid injection pipe based on the shape correction channel;

[0013] S2, alignment and insertion

[0014] At the lower limit position formed in each assembly station, each liquid injection pipe insertion branch is synchronously moved upward, and the disassembly portion is inserted into the liquid injection pipe, while the top of the shape correction channel is in contact with the reduced diameter end of the stepped portion, and the insertion pipe segment is deformed and fitted on the stepped portion;

[0015] S3, straightening, punching, and position compensation

[0016] The liquid injection pipe fitted on the nozzle body is straightened downward from one side of the shape correction channel until the falling length and the punching position are aligned, and then the liquid injection pipe is synchronously punched by the punching assembly to complete the assembly of multiple nozzles, and then the liquid injection pipe is moved based on the shape correction channel to restore the state of the liquid injection pipe insertion branch in step S1.

[0017] Preferably, in step S1, the provided downward pressure is equal to the upward thrust force formed by the insertion. The upward thrust force here includes the upward thrust force of the insertion and the upward reset force, so that the installation does not cause the misalignment of the internal parts.

[0018] According to a specific implementation and preferred aspect of the present application, a plurality of assembly stations are arranged side by side on the positioning platform, each assembly station is correspondingly formed with a lower pressing head above the positioning platform, and the lower pressing head is formed with a positioning groove matched with the nozzle body. Based on the positioning of the positioning groove, the lower pressing is more stable, thereby meeting the needs of high-quality assembly.

[0019] Preferably, in step S1, the length of the inserted pipe section is equal to the length of the stepped portion, so that the length of the formed sleeving part is equivalent to the uniformity, and meets the basic needs of use.

[0020] Preferably, in step S2, the disassembling part is inserted into the inner wall of the liquid spraying pipe from the outer periphery. In this way, the formed sleeve is more firm (in short, it is a conventional interference fit here), which facilitates the straightening of the liquid spraying pipe during the falling back process.

[0021] According to another specific implementation and preferred aspect of the present application, the type correcting channel is composed of a plurality of contact groups aligned above and below the center, wherein each contact group is formed with a plurality of circumferentially spaced contact points. In short, by the resistance of the outer peripheral contact points, the deformed part is relatively shaped to restore the deformation of the liquid spraying pipe.

[0022] Preferably, the contact points formed between the two adjacent contact groups are distributed in a staggered manner above and below. Based on the staggered arrangement, the shaping can be better.

[0023] Specifically, in the axial projection of the type correcting channel, the contact points formed by the plurality of contact groups are relatively spaced on a circular track, or the contact points formed by the plurality of contact groups are connected to form a circular ring matched with the outer diameter of the liquid spraying pipe. No matter how the contact points are distributed, they must be on a circular track, so that the extrusion type correction of the liquid spraying pipe from the outer periphery is more fully implemented.

[0024] In some specific implementations, each contact group is formed between a plurality of universal rollers uniformly distributed around the center of the type correcting channel, and each universal roller forms a contact point. Based on the rolling of the universal rollers, the liquid spraying pipe is more smoothly completed.

[0025] Further, in the punching process of step S3, the punching point is located between the two contact groups to avoid interference of the contact points with the punching, and high-quality horizontal punching can also be completed under the positioning support.

[0026] In some specific implementations, the contact group above the punching point has at least two groups. Based on the clamping formed by multiple groups, the correction effect is optimal, and the anti-deformation ability of the liquid spraying pipe is also enhanced, which provides necessary conditions for high-quality insertion.

[0027] According to still another specific implementation and preferred aspect of the present application, in the pipe filling step S3, the pipe is pushed up based on a bottom-up pushing manner, and the pipe is formed by the protruding contact during the moving process. That is, the pipe is shaped and filled at the same time.

[0028] Preferably, the filling assembly used includes a power member moving up and down, and a filling sleeve, wherein the pipe is inserted into the channel from the filling sleeve, and the pipe is filled up based on the displacement of the filling sleeve.

[0029] Specifically, a contact group is also arranged inside the filling sleeve to improve the filling smoothness.

[0030] In addition, each pipe filling branch also has a cleaning cotton freely sleeved on the outer periphery of the pipe, wherein the cleaning cotton is driven to contact the lower part of the channel to make the pipe and the cleaning cotton relatively move to clean the surface. The residual or stain on the outer periphery of the pipe is removed based on the cleaning cotton, so that the relatively clean pipe enters the channel to improve the correction accuracy and improve the filling quality.

[0031] Thanks to the implementation of the above technical solutions, the present application has the following advantages compared with the prior art:

[0032] In the existing spray liquid pipe insertion of the existing sprayer, due to the deformation of the spray liquid pipe itself and the difficulty in resetting, the cutting is based on the insertion of the head, that is, the part of the insertion port is punched, and the deformation of the insertion port of the spray liquid pipe will occur during the punching process. Once the deformation cannot be restored to the natural state (or the end cannot be corrected), it will directly cause the difficulty of the alignment insertion of the next spray head body, and it is easy to fail to insert in place, and there is also a probability that it cannot be inserted. Then, the length of the spray liquid pipe inserted into the outer periphery of the spray head body is difficult to control, and the length of the insertion is too short, which will lead to a high probability of falling off, and it is difficult to control the qualified rate of the product. At the same time, in the conventional insertion process, the pipe end expands and tightens in the inner wall of the insertion head due to insertion, and when the insertion is completed, the insertion head will pull the spray liquid pipe during the falling process, which will cause the insertion to fail, and the insertion head cannot effectively straighten the spray liquid pipe, which will cause the length of the punching to be different, and thus affect the qualified rate of the product. Furthermore, the spray liquid pipe used is generally in a rolled shape, and it is difficult to align and insert when the spray liquid pipe itself is extruded or deformed. That is, the disassembly and assembly strainability is very poor. In addition, under the premise of continuous supply of spray liquid pipe, single spray head assembly is generally carried out, so the assembly efficiency is low, and the insertion used will cause the assembly quality of the spray head body and other deficiencies if it is not carried out at the pressing limit position. The present application solves various deficiencies of the prior art by ingenious overall design of the multi-station spray head assembly process based on automatic positioning and shape correction of the spray liquid pipe. After using the assembly process, first, the spray head body is positioned downward from the liquid inlet end in the assembly station, and the spray liquid pipe is corrected in shape from the end of the shape correction channel to form an insertion pipe segment after the spray liquid pipe insertion branch corrects the shape of the spray liquid pipe in the shape correction channel. Secondly, at the lower limit position of each assembly station, the spray liquid pipe insertion branch is synchronously moved upward, and the disassembly part is inserted into the spray liquid pipe, and the top of the shape correction channel is in contact with the lower reducing end of the stepped part, and the insertion pipe segment is expanded and deformed and is sleeved on the stepped part. Finally, the spray liquid pipe sleeved on the spray head body is straightened by one side of the shape correction channel falling downward, until the falling length and the punching position are aligned, and the through horizontal punching is carried out by the punching assembly to synchronously complete the assembly of multiple spray heads. At the same time, the spray liquid pipe is moved relative to the shape correction channel to restore the material state of the spray liquid pipe insertion branch, so that the assembly station and the spray liquid pipe insertion branch cooperate, and the shape correction and reset of the shape correction channel and the falling straightening are carried out at the same time. The assembly is carried out at the pressing limit position to realize the alignment insertion and punching of multiple spray heads with the same length. Not only does it eliminate the defect that the spray liquid pipe cannot be aligned and inserted due to deformation, but it also provides necessary conditions for high-quality insertion of the spray liquid pipe. On the other hand, the spray liquid pipe is synchronously positioned and shaped to match the length of the spray liquid pipe with the length of the stepped part, so that the spray liquid pipe is aligned and inserted with the aid of the reinforced sleeve insertion end. Not only is the length of the insertion sleeve consistent, but the spray liquid pipe will not be pulled down when the insertion end falls back. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S1 of the present application;

[0034] Figure 2 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S1 of the present application;

[0035] Figure 3 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S2 of the present application;

[0036] Figure 4 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application;

[0037] Figure 5 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application;

[0038] Figure 6 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application;

[0039] Figure 7 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application; Figure 6 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application;

[0040] Figure 8 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application; Figure 7 The front view schematic diagram of the automatic pipe inserting and cutting integrated assembly machine of the sprayer in step S3 of the present application;

[0041] Wherein: W, sprayer; W1, nozzle body; t, stepped part; c, disassembly part; W2, liquid spraying pipe; 1, positioning unit; 10, positioning platform; 11, pressing head; 110, positioning groove; 2, inserting unit; Q, liquid spraying pipe inserting branch; X, type checking channel; Z, punching assembly; Z1, base; Z2, punching power piece; Z3, punching cutter head; B, position supplement assembly; b1, position supplement sleeve; b2, power device; b3, spring; 3, inserting seat; 4, power piece; 5, pipe inserting sleeve; 50, sleeve; m, sleeve inserting end; 51, ball; N, cleaning cotton. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application will be described in detail below with reference to the drawings and specific embodiments. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the scope of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0043] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the application and simplifying the description, and does not indicate or imply that the indicated unit or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0044] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0047] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0048] As Figures 1 to 8As shown, the multi-station spray head assembly process based on automatic position compensation and shape correction of the spray pipe in the embodiment is used for the assembly of the spray head W. Specifically, the spray head W includes a spray head body W1 and a spray pipe W2. The spray head body W1 is a commonly used press spray head assembly, and the spray pipe W2 is a commonly used plastic hose which is soft by itself. Therefore, it is difficult to restore the deformation after the deformation is formed in the punching or production process.

[0049] In some specific embodiments, the assembly equipment used in the spray head assembly process includes a positioning unit 1 of the spray head body W1 and a plug-in unit 2 of the spray pipe W2. The liquid inlet end of the spray head body W1 has a stepped portion t with a gradually decreasing outer diameter and a disassembly portion c extending downward from the bottom of the stepped portion t.

[0050] In this example, the positioning unit 1 has two assembly stations arranged in alignment and at intervals (generally two spray heads in a group, and of course three or four or more can also be used), and the plug-in unit 2 has a spray pipe plug-in branch Q corresponding to each assembly station. That is, two spray pipes W2 are inserted in position.

[0051] Specifically, the positioning unit 1 includes a positioning platform 10 and a pressing head 11 located above the positioning platform 10 and capable of ascending and descending. The spray head body W1 is pressed and positioned on the positioning platform 10 based on the pressing head 11 to overcome the upward force caused by the plug-in. The upward force is offset by the pressing force, and the pressing force is greater than or equal to the upward force, so that the spray head body W1 is kept in a stationary state for alignment and plug-in. The upward force includes the upward force caused by the plug-in and the upward reset force, so that the installation does not cause the misalignment of internal parts. Further, the two assembly stations are arranged side by side on the positioning platform 10, and the pressing head 11 is formed with a positioning groove 110 matched with the spray head body W1. The positioning groove is used for alignment to make the pressing more stable, thereby meeting the needs of high-quality assembly.

[0052] In some specific embodiments, the spray pipe plug-in branch Q has a shape correction channel X capable of multi-point limiting contact from the outer periphery to restore the deformation, a punching assembly Z arranged perpendicularly to the shape correction channel X, and a position compensation assembly B of the spray pipe. The punching assembly Z horizontally punches through the shape correction channel X, and the position compensation assembly B is used for shaping and compensating the upward edge of the cut spray pipe.

[0053] In this example, two shape correction channels X are installed in parallel on the same plug-in seat 3 which is capable of ascending and descending, and then a power member 4 is used to drive the plug-in seat 3 to ascend for plug-in, descend for straightening, and punch in position. The power member 4 used is a conventional transmission lead screw or a telescopic rod.

[0054] Specifically, the straightening channel X is formed by the insertion sleeve set 5 which penetrates the insertion seat 3 from top to bottom, and the insertion sleeve set 5 includes a sleeve 50 and a plurality of groups of rolling balls 51 which are freely rolling on the inner wall of the sleeve 50. The groups of rolling balls 51 are spaced apart from each other in the up-down direction, and each group of rolling balls 51 is spaced apart from each other in the circumferential direction of the sleeve 50 to form an annular channel which is in rolling contact with the outer periphery of the liquid injection pipe W2. The centers of the plurality of annular channels are aligned, and the plurality of annular channels form the straightening channel through which the liquid injection pipe W2 penetrates. The liquid injection pipe W2 which is pushed out from bottom to top is restored to its original shape based on the straightening position of the straightening channel which is in contact with the outer periphery, and then emerges from the top of the sleeve. The length of the emerged part is equal to the length of the stepped part t. The sleeve 50 penetrates the insertion seat 3 from top to bottom, and emerges from the top and bottom ends. The top end forms the sleeve insertion end m which is wrapped around the disassembling part when the insertion seat 3 is inserted in place, and / or the sleeve insertion end m is located below the reduced diameter end of the stepped part when the insertion seat 3 is inserted in place. Based on the design of the sleeve insertion end, the sleeve insertion end not only cooperates with the rolling balls to correct the shape, but also strengthens the strength of the emerged end of the sleeve to assist the insertion, and the formed insertion position further improves the quality of the insertion (for example: insertion in place), and the liquid injection pipe is not pulled during the falling to reduce the probability of falling off or loosening. Each adjacent two groups of rolling balls 51 are arranged in opposite positions in the up-down direction. In this way, the correction ability is strong, so that the deformed liquid injection pipe can be quickly restored. The groups of rolling balls 51 are gradually staggered from top to bottom. In this way, the correction is all-round, so that the emerged part presents the best state of assembly. In the axial projection of the insertion sleeve set 5, the contact points formed by the groups of rolling balls 51 are spaced apart around the center of the sleeve; or in the axial projection of the insertion sleeve set 5, the contact points are connected to form a circular ring which matches the outer diameter of the liquid injection pipe. That is, the contact points are formed by the contact points of the rolling balls, and no matter how the contact points are distributed, they must be on a circular track, so that the liquid injection pipe is more fully implemented by the extrusion correction from the outer periphery.

[0055] The position compensation assembly B includes a power member b1 which moves up and down, a position compensation sleeve b2, and a spring b3. The liquid injection pipe W2 penetrates the straightening channel from the position compensation sleeve b2, and the liquid injection pipe W2 is upwardly compensated based on the displacement of the position compensation sleeve b2. The spring b3 is located between the position compensation sleeve b2 and the insertion seat 3, and the liquid injection pipe W2 penetrates upwardly from the position compensation sleeve b2, the spring b3 and the straightening channel in sequence. Specifically, the position compensation sleeve b2 also has a contact point group inside to improve the smoothness of the compensation.

[0056] In addition, each liquid injection pipe insertion branch Q also has a cleaning cotton N which is freely sleeved on the outer periphery of the liquid injection pipe W2. The liquid injection pipe W and the cleaning cotton N relatively move to clean the surface by the cleaning cotton N which is in contact with the lower part of the straightening channel X to remove the residues or stains on the outer periphery of the liquid injection pipe W2, so that the relatively clean liquid injection pipe W2 enters the straightening channel X to improve the correction accuracy and improve the insertion quality.

[0057] The punching unit Z includes a base Z1 installed on the insertion seat 3, a punching power Z2 linear reciprocating along the vertical direction of the insertion seat 3, and a punching head Z3 corresponding to the two annular channels (contact groups) and capable of entering and exiting the insertion seat 3 and the sleeve 50 to horizontally punch the tube-injection tube W2. Then, the contact group above the punching position has at least two groups. Based on the multiple groups, the clamping is formed to make the correction effect optimal, and the anti-deformation ability of the injection tube is enhanced, which provides necessary conditions for high-quality insertion.

[0058] In summary, the implementation process of the embodiment is as follows:

[0059] S1, insertion preparation

[0060] The nozzle body is positioned downward from the liquid inlet end in the assembly station, and the injection tube insertion branch based on the profiled channel corrects the profile of the injection tube to form an insertion tube segment from the end of the profiled channel;

[0061] S2, alignment insertion

[0062] At the lower limit position formed in each assembly station, the injection tube insertion branch is synchronously moved upward, and the disassembly part is inserted into the injection tube, and the top of the profiled channel abuts against the lower diameter end of the stepped part, and the insertion tube segment is outwardly deformed and sleeved on the stepped part;

[0063] S3, straightening, punching, and position compensation

[0064] The injection tube sleeved on the nozzle body is straightened downward from one side of the profiled channel until the falling length is aligned with the punching position, and then the through-type horizontal punching is performed by the punching assembly to synchronously complete the assembly of multiple nozzles, and then the position compensation is performed based on the movement of the injection tube relative to the profiled channel to restore the injection tube insertion branch to the preparation state in step S1.

[0065] In step S1, the provided downward pressure is equal to the upward top force formed by the insertion. The upward top force here includes the upward restoring force and the upward pressing force, so that the installation does not cause the misalignment of the internal parts. In step S1, the length of the insertion tube segment is equal to the length of the stepped part, so that the length of the sleeved part is uniform, which meets the basic needs of use. In step S2, the disassembly part is inserted into the inner wall of the injection tube from the outer periphery. Thus, the formed sleeve joint is more firm (in short, it is a conventional interference fit here), which facilitates the straightening of the injection tube during the falling process. In the punching process of step S3, the punching position is located between the two contact groups to avoid the interference of the contacts with the punching, and the high-quality horizontal punching is completed under the positioning support. In the position compensation of the injection tube in step S3, the injection tube is moved upward relative to the profiled channel based on the upward pushing, and the insertion tube segment is formed by the protrusion based on the shaping of the contacts during the movement. That is, the shaping and the position compensation are performed simultaneously.

[0066] Furthermore, after the assembling process, firstly, the nozzle body is positioned downwards from the liquid inlet end in the assembly station, each liquid injection pipe insertion branch is corrected in shape based on the shape correction channel, and the liquid injection pipe is popped out from the end of the shape correction channel to form an insertion pipe segment; secondly, at the lower pressing limit position formed in each assembly station, each liquid injection pipe insertion branch is synchronously moved upwards, and the dismounting part is inserted into the liquid injection pipe, meanwhile, the top of the shape correction channel is in contact with the lower reducing end of the stepped part, and the insertion pipe segment is outwardly deformed and sleeved on the stepped part; finally, the liquid injection pipe sleeved on the nozzle body is straightened downwards by one side of the shape correction channel, until the falling length is aligned with the punching position, the through horizontal punching is performed by the punching assembly, so as to synchronously complete the assembly of multiple nozzles, and the liquid injection pipe is repositioned based on the shape correction channel to restore the material state of the liquid injection pipe insertion branch, therefore, on the one hand, the assembly station and the liquid injection pipe insertion branch cooperate, the shape is reset and straightened by falling back of the shape correction channel, and the assembly is performed at the pressing limit position, so that the length alignment of multiple nozzles is realized, the defects of misalignment caused by deformation of the liquid injection pipe are eliminated, and necessary conditions for high-quality insertion of the liquid injection pipe are provided; on the other hand, the liquid injection pipe is synchronously repositioned and shaped, so that the popping length of the liquid injection pipe matches the length of the stepped part, and the length of the insertion sleeve is consistent, and the liquid injection pipe is not pulled down when falling back; the third aspect provides that the pressing force is equal to the upward top force formed by the insertion, the upward top force includes the upward force of the insertion and the upward reset force, so that the installation does not cause misalignment of internal parts; the fourth aspect provides that multiple assembly stations are arranged side by side on the positioning platform, the lower pressing head is formed above each assembly station, the positioning groove matched with the nozzle body is formed on the lower pressing head, the alignment based on the positioning groove makes the pressing more stable, so as to meet the needs of high-quality assembly; the fifth aspect provides that the length of the insertion pipe segment is equal to the length of the stepped part, so that the length of the sleeved part is uniform, and the basic needs of use are met, and the dismounting part is inserted into the inner wall of the liquid injection pipe from the outer periphery. The sleeve connection is more firm (in short, it is a conventional interference fit here), and the liquid injection pipe is straightened during the falling back process; the sixth aspect provides that the deformed part is relatively shaped by the contact of the outer peripheral contact points, so that the liquid injection pipe is restored, and in the axial projection of the shape correction channel, the contacts formed by the multiple contact groups are arranged on the circular track in a relatively spaced manner, or the contacts formed by the multiple contact groups are connected to form a circular ring matched with the outer diameter of the liquid injection pipe.No matter how the contact points are distributed, they must be on a circular track, which is more comprehensive to implement the liquid injection tube extrusion correction from the outer periphery, and based on the universal wheel rolling to reduce the liquid injection tube obstruction, to complete the liquid injection tube position and straightening more smoothly; the seventh aspect of the punching point is located between the two contact point groups to avoid the interference of the contact points, and also to complete the high-quality horizontal punching under the positioning support, and the contact point group above the punching point has at least two groups, which is based on multiple groups to form clamping to make the correction effect best, and also to strengthen the anti-deformation ability of the liquid injection tube, and to provide necessary conditions for high-quality insertion; the eighth aspect is based on the upward pushing of the liquid injection tube to move upward on the correction channel, and based on the contact point shaping to form the insertion tube segment during the movement, that is, one side is shaped and the other side is positioned; the ninth aspect is that the liquid injection tube is inserted into the correction channel from the positioning sleeve, and based on the displacement of the positioning sleeve to position the liquid injection tube upward, and also provided with a contact point group inside the positioning sleeve to improve the smoothness of the positioning; the tenth aspect is based on the cleaning cotton to remove the residues or stains on the outer periphery of the liquid injection tube, so that the relatively clean liquid injection tube enters the correction channel, improves the correction accuracy, and improves the insertion quality.

[0067] The above has made a detailed description of the present application, the purpose of which is to enable people familiar with the technology in this field to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application, any equivalent changes or modifications made according to the spirit of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-station nozzle assembly process based on automatic position compensation and shape correction of a liquid jet pipe, which employs an assembly device comprising a positioning unit for a nozzle body and a plug-in unit for a liquid jet pipe, wherein the liquid inlet end of the nozzle body has a stepped portion with a gradually decreasing outer diameter and a disassembly portion extending downward from the bottom of the stepped portion, characterized in that: The positioning unit has a plurality of assembly stations arranged in alignment and spacing, wherein the plurality of assembly stations are arranged side by side on the positioning platform, each assembly station is correspondingly formed with a pressing head above the positioning platform, and the pressing head is formed with a positioning groove matched with the nozzle body; the inserting unit has a plurality of liquid injection pipe inserting branches corresponding to the assembly stations, each liquid injection pipe inserting branch has a shape correcting channel capable of being limited and contacted by multiple points on the outer periphery to restore the deformation, and a punching assembly vertically arranged with the shape correcting channel, the shape correcting channel is composed of a plurality of contact groups aligned above and below the center, wherein each contact group has a plurality of circumferentially spaced contact points; the contact points formed between the adjacent two contact groups are distributed in up-down staggered manner, the punching assembly horizontally punches through the shape correcting channel, and includes the following steps: S1, inserting preparation The nozzle body is positioned downward from the liquid inlet end in the assembly station, and each liquid injection pipe inserting branch is formed after the liquid injection pipe is corrected in shape based on the shape correcting channel and protrudes from the end of the shape correcting channel to form an inserting pipe segment; S2, alignment and insertion At the lower limit position of each assembly station, each liquid injection pipe inserting branch is synchronously moved upward, and the dismounting part is inserted into the liquid injection pipe, at the same time, the top of the shape correcting channel is contacted with the lower diameter end of the stepped part, and the inserting pipe segment is deformed and sleeved on the stepped part, wherein the provided pressing force is equal to the upward force formed by the insertion; S3, straightening, punching, and position compensation The liquid injection pipe is straightened by falling down from one side of the shape correcting channel and being sleeved on the nozzle body until the falling length and the punching position are aligned, and then the punching assembly performs through horizontal punching to synchronously complete the assembly of a plurality of nozzles, and then the liquid injection pipe is moved based on the shape correcting channel to compensate the position and return to the standby state of the liquid injection pipe inserting branch in step S1.

2. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 1, characterized in that: In step S1, the length of the inserting pipe segment is equal to the length of the stepped part.

3. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 1, characterized in that: In step S2, the dismounting part is inserted into the inner wall of the liquid injection pipe from the outer periphery.

4. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 1, characterized in that: In the axial projection of the shape correcting channel, the contact points formed by the plurality of contact groups are arranged on a circular track with a relative spacing, or the contact points formed by the plurality of contact groups are connected to form a circular ring matched with the outer diameter of the liquid injection pipe.

5. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 4, characterized in that: Each contact group is formed between a plurality of universal rollers uniformly distributed around the center of the shape correcting channel, and each universal roller forms a contact point.

6. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 4, characterized in that: In the punching process of step S3, the punching point is located between two contact groups.

7. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 6, characterized in that: The contact group located above the punching point has at least two groups.

8. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 1, characterized in that: In the position compensation of the liquid injection pipe in step S3, the liquid injection pipe is moved upward based on the pushing from bottom to top relative to the shape correcting channel, and the inserting pipe segment is formed by protruding based on the shaping of the contact points during the movement.

9. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 8, characterized in that: The compensation assembly includes a power member moving up and down and a compensation sleeve, wherein the liquid injection pipe passes through the shape correcting channel from the compensation sleeve, and the liquid injection pipe is upwardly compensated based on the displacement of the compensation sleeve.

10. The automatic position and shape correcting multi-station spray head assembly process based on liquid jet according to claim 1, characterized in that: Each liquid injection pipe inserting branch also has a cleaning cotton freely sleeved on the outer periphery of the liquid injection pipe, wherein the cleaning cotton is driven to contact the lower part of the shape correcting channel to enable the relative movement of the liquid injection pipe and the cleaning cotton for surface cleaning.

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