Continuous automatic printing device and process for surface of automobile rubber pipe

Abstract

The invention discloses an automobile rubber tube surface continuous automatic printing device and process, and relates to the technical field of printing devices, the automobile rubber tube surface continuous automatic printing device comprises a main body, a plasma surface processor, an ink-jet printer and a drying part; the unwinding component is used for releasing a rubber tube; the straightening component is used for straightening the unwound rubber tube; the positioning component is used for preventing the rubber tube from deflecting in the circumferential direction in the traction process; the winding component is used for winding the printed rubber tube; the gun head of the plasma surface processor and the nozzle of the ink-jet printer form an included angle of 30-60 degrees with the ground. According to the invention, the gun head of the plasma surface processor and the nozzle of the ink-jet printer are arranged to be in an inclined state, so that the processing and printing positions of the outer wall of the rubber tube are located above the end face of the rubber tube, and the printing part is just located at the gap position between the rubber tubes during winding after the rubber tube is processed; therefore, friction between the printing part and the wound rubber pipe is avoided, and the problem that the printing part is rubbed off when not completely solidified is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing devices, in particular to a continuous automatic printing device and process for the surface of automobile rubber pipes. BACKGROUND

[0002] As a key identification technology, rubber pipe surface printing plays an important role in the production and application of various rubber pipe products. By precisely printing manufacturer information (such as company name, production address, contact information, etc.), product core specifications (such as diameter, length, material composition, working pressure range, etc.), and traceability identifiers such as production batch number and serial number on the surface of the rubber pipe, it not only provides clear basis for the whole life cycle management of the product, helping to achieve traceability from production, circulation to use and recycling, but also provides accurate guidance for operators in installation, maintenance and other links, effectively reducing the risk of misoperation, thereby significantly improving the safety and reliability of the product.

[0003] The core principle of rubber pipe surface printing is to use special ink to form the required identification on the surface of the rubber pipe. However, since rubber pipes are often used in complex and variable environments, the ink identification on their surface is easily eroded by various factors. For example, in the automotive and mechanical fields, rubber pipes may come into contact with gasoline, diesel, alcohol and other organic solvents, which can dissolve or soften the ink. At the same time, water mist and humid environment can accelerate the aging and falling off of the ink, and long-term friction and vibration can also cause the identification to gradually fade and blur, seriously affecting the identification and durability of the identification.

[0004] The prior art proposes a printing process for the surface of a rubber pipe (publication number CN119704918A). The invention first uses a plasma surface processor to clean the surface of the rubber pipe, which can remove impurities on the surface of the rubber pipe and attach polar groups to the surface of the rubber pipe, thereby increasing the surface free energy of the rubber pipe and significantly improving the adhesion of the ink on the surface of the rubber pipe. Secondly, the invention sprays a protective coating on the outside of the ink identification, which has the functions of waterproofing, oil-proofing, stain-proofing, corrosion-proofing, etc. for the ink identification, improving the stability of the ink in the use environment without affecting the identification function of the ink identification. Although this scheme can improve the processing efficiency through a continuous automatic production mode of one-side unwinding and the other-side traction winding, it still faces the problem of insufficient solidification of the identification. Although the prior art uses a corresponding auxiliary solidification method, it is limited by the time required for the solidification process. At the winding stage, the printed parts are often not completely hardened. At this time, the rubber pipes are stacked on each other during the winding process, and the rubber pipes inevitably produce extrusion and scratching. This physical action can directly impact the identification that has not completely solidified, easily damaging the combination of the ink and the surface of the rubber pipe, causing the text to be rubbed off or blurred, and thus affecting the integrity and readability of the identification, making it difficult to meet the requirements for the stability of the identification in long-term use. SUMMARY

[0005] The present application aims to provide a continuous automatic printing device and process for the surface of automobile rubber pipes to solve the problem that the printed characters are easily rubbed off due to mutual friction when the rubber pipes are wound.

[0006] To solve the above technical problems, the technical solution adopted by the present application is: A continuous automatic printing device for the surface of automobile rubber pipes comprises a main body, a plasma surface processor, a code printer, and a drying component. It also comprises a unwinding component arranged at the front of the main body for releasing the rubber pipes, a straightening component for straightening the rubber pipes after unwinding, a positioning component arranged on both sides of the plasma surface processor and the code printer for preventing the rubber pipes from deflecting in the circumferential direction during traction, and a winding component arranged at the tail of the main body for winding the printed rubber pipes. The gun head of the plasma surface processor and the nozzle of the code printer form an angle of 30-60 degrees with the ground. The height of the printed characters on the rubber pipes accounts for 8-16% of the circumference of the outer wall of the rubber pipes. An extrusion structure is arranged on the main body table behind the drying component. The extrusion structure is used to temporarily deform the rubber pipes. The long axis of the deformed rubber pipes is perpendicular to the axis of the winding component, and the short axis is parallel to the axis of the winding component. The drying component is a hot air dryer, which comprises a mounting seat and a hot air gun fixedly connected to the top of the mounting seat. The output part of the hot air gun is a long strip-shaped air outlet for providing strip-shaped hot air along the traction path of the rubber pipes.

[0007] By setting the gun head of the plasma surface processor and the nozzle of the code printer in an inclined state, the processing and printing positions of the outer wall of the rubber pipes are above the end face of the rubber pipes, so that the printing position is located in the gap between the rubber pipes when winding, thereby avoiding friction between the printing position and the wound rubber pipes, and preventing the printing position from being rubbed off before complete solidification. Further, by setting a hot air dryer as the drying component for drying the printed rubber pipes, the printing position can be quickly solidified. On the other hand, the hot air acts on the rubber pipes to weaken the intermolecular force of the rubber molecules, making the molecular chain segments more easily "relaxed". After being flattened, the "driving force" for elastic recovery is temporarily reduced, thereby delaying the recovery speed. Based on this scheme, an extrusion component is also provided, which can temporarily flatten the rubber pipes into an elliptical shape in cross section. The long axis of the deformed rubber pipes is perpendicular to the axis of the winding component, and the short axis is parallel to the axis of the winding component. When the rubber pipes are wound on the winding component, they are arranged in the short axis direction in the axial direction, and recover in a short time, avoiding the problem that the printing position is rubbed off due to too close contact between the rubber pipes during winding, and improving the printing effect.

[0008] A further improvement of the technical solution of the present invention is that: the extrusion structure includes an adjustment seat fixedly connected to the main body, and the inner side of the adjustment seat is symmetrically connected to two screws for rotation, the ends of the two screws that are close to each other are fixedly connected, one end of one of the screws extends to the outside of the adjustment seat and is fixedly connected to a knob, and the outsides of the two screws are symmetrically threadedly connected to two adjustment blocks, the adjustment blocks are slidingly connected to the adjustment seat, a through hole is provided on the adjustment block, and a pressure rod is slidingly connected to the inner wall of the through hole, the ends of the two pressure rods that are close to each other are fixedly connected to an L-shaped plate, and the ends of the pressure rods that are away from each other are fixedly connected to a limiting block, a third spring is sleeved on the outside of the pressure rod and located between the adjustment block and the L-shaped plate, and the top of the L-shaped plate is rotatably connected to a pressure roller.

[0009] By adopting the above technical solution, by setting an adjustment block with adjustable spacing and connecting the pressure roller used to extrude the hose to the adjustment block using an elastic structure, the spacing of the pressure rollers can be flexibly adjusted according to the diameter of the hose, thereby meeting the different degrees of extrusion requirements for the hose and adapting to hoses of different materials or diameters.

[0010] A further improvement of the technical solution of the present invention is that: the positioning component includes a positioning seat fixedly connected to the main table surface, the top of the positioning seat is slidably connected to the slide, the top of the slide is fixedly connected to the transmission box, two first slide bars are symmetrically fixedly connected between the inner walls of the transmission box, the outside of the first slide bars are slidably connected to the first slider, the side of the two first sliders close to each other is fixedly connected to the rack, a central gear is rotatably connected between the transmission box and the slide, the central gear is meshed with the two racks, the outside of the first slide bars is covered with a first spring, and the two first springs are center-aligned. It is said that there are two strip grooves symmetrically provided on the transmission box, the top of the first slider passes through the strip groove and is fixedly connected to a clamping block, the sides of the clamping blocks that are close to each other have an arc surface concave toward the middle, and the arc surface part of the clamping block is set to rubber material; a cylinder is fixedly installed on the top of the slide, and the piston rod of the cylinder is in contact with the side of the first slider away from the first spring; a slide groove is provided in the middle of the positioning seat, and a second slide rod is fixedly connected between the inner walls of the slide groove, and the outside of the second slide rod is slidably connected to the second slider, the second slider is fixedly connected to the slide, and the outside of the second slide rod is covered with a second spring.

[0011] By adopting the above technical solution, the positioning component is set to restrict the hose. The specific restriction method is to prevent it from rotating in the circumferential direction, not restrict the axial transportation of the hose, and provide support points to reduce the sagging of the printing part, so that the printing part of the hose is straighter and more stable, ensuring that the printing part is on the same axis of the hose, and also ensuring that the plasma processing part and the printing part are in the same area, avoiding the deviation of the two processing parts and affecting the printing effect.

[0012] The further improvement of the technical scheme of the present application is that the straightening component comprises an upper guide frame, a first guide wheel is arranged on one side of the upper guide frame close to the unwinding component, the first guide wheel is arranged above the unwinding component, the first guide wheel is arranged along the tangent direction of the rubber tube unwinding disc, and the rubber tube is vertically led upwards and then passes through the first guide wheel; a traction ring is fixedly connected to one side of the upper guide frame close to the first guide wheel, the rubber tube is released from the unwinding disc, passes through the traction ring, and is vertically led upwards in the traction direction; a second guide wheel and a third guide wheel are arranged on one side of the upper guide frame stand away from the first guide wheel, the second guide wheel is arranged at the same height as the first guide wheel, the rubber tube passes through the second guide wheel after passing through the first guide wheel and changes to be vertically downward, and the lower edge height of the third guide wheel is consistent with the center height of the subsequent rubber tube printing production line, the rubber tube passes through the third guide wheel after passing through the second guide wheel and changes to be horizontally.

[0013] By adopting the above technical scheme, the unwinding component is internally provided with a drive, the unwinding disc can be controlled to actively rotate, the unwinding disc is driven to rotate by the unwinding component, and the rubber tube is vertically led out from above, the rubber tube only moves in a straight line and does not rotate around its own axis, so that the coaxial rubber tube released does not have fluctuations caused by twisting, periodic corrugations caused by twisting do not exist, and the misalignment caused by rubber tube twisting in the subsequent printing process is reduced.

[0014] The further improvement of the technical scheme of the present application is that the tail of the main body is fixedly connected with a base, the top of the base is fixedly installed with a linear module, the movable end of the linear module is fixedly connected with a carrier plate, the linear module can control the carrier plate to do reciprocating linear motion, and the winding component is installed on the top of the carrier plate; a pressure sensor is fixedly installed on one side of the adjusting block, the limiting block is in contact with the signal acquisition part of the pressure sensor, and the pressure sensor, the linear module and the winding component are electrically connected with the external control equipment.

[0015] By adopting the above technical scheme, the winding process controls the rotation of the pipe disc through the unwinding component and controls the slow movement of the entire unwinding component (and the pipe disc) on the axis through the linear module, and the pipe disc is moved to the position of the next circle along the axial direction after each winding, so that the pipe disc can be completely laid out; The further improvement of the technical scheme of the present application is that the top of the main body is fixedly connected with a base, the inner side of the base is rotatably connected with a mounting ring, one side of the mounting ring is fixedly connected with an inner gear ring, a mounting rod is fixedly connected through the mounting ring, the gun head of the plasma surface treater and the nozzle of the ink-jet printer are fixedly installed on the mounting rod, an adjusting motor is fixedly installed on the top of the main body, the output end of the adjusting motor is fixedly connected with a drive gear, and the drive gear is meshedly connected with the inner gear ring.

[0016] The technical scheme is characterized in that the gun head of the plasma surface processor and the nozzle of the ink-jet printer are installed on the adjustable mounting rod, and in the printing process when the winding part is in the non-outermost winding state, the adjusting rod is controlled to make the gun head of the plasma surface processor and the nozzle of the ink-jet printer form an angle of 30-60 degrees with the ground, so that the printing effect required by the scheme is achieved; when printing is performed on the last small section of the rubber tube, the rubber tube is wound on the outermost layer of the winding part, so that there is no friction of other rubber tubes on the side far from the shaft center, but if the printing position is printed on the side, reading is greatly facilitated.

[0017] Further improvement of the technical scheme of the present application is that the plurality of wheel seats are fixedly connected to the tabletop of the main body, and the auxiliary supporting wheels are rotatably connected to the top of each wheel seat.

[0018] In the embodiment, the rubber tube needs to pass through a long path in the production process, which is easy to cause the middle part of the rubber tube to sag or shake, so a plurality of auxiliary supporting wheels are additionally arranged on the rubber tube traction path to assist in supporting the rubber tube, so as to avoid printing misalignment caused by sagging of the rubber tube, thereby improving the printing effect.

[0019] Further improvement of the technical scheme of the present application is that the side of the arc surface of the clamping block is provided with a plurality of protrusions parallel to the traction direction of the rubber tube.

[0020] The technical scheme is characterized in that the protrusions are arranged to improve the gripping ability of the clamping block and further reduce the deflection of the rubber tube in the circumferential direction, thereby improving the stability of the processing process.

[0021] The present application also provides a continuous automatic printing process for the surface of a rubber tube of a vehicle, comprising the following steps: S1: unwinding and straightening: the rubber tube is released by the unwinding part, and is guided by the straightening part in sequence, so as to be conveyed in a straight line without circumferential torsion, release internal curling stress, and reduce torsion deviation in subsequent processing; The internal curling stress of the rubber tube is released, periodic corrugation caused by torsion is avoided, and positional deviation in subsequent processing is reduced.

[0022] S2: positioning and constraint: the rubber tube enters the positioning part, the positioning part is used to limit the circumferential deflection of the rubber tube without hindering the axial conveying, and the processing and printing positions are ensured to be consistent.

[0023] S3: plasma treatment and ink-jet printing: the gun head of the plasma surface processor is used to treat the surface of the rubber tube at an angle of 30-60 degrees with the ground, and then the nozzle of the ink-jet printer is used to print characters on the treated area at the same angle, so as to ensure the accuracy of the printing position. The plasma treatment improves the surface free energy of the rubber tube and the ink adhesion; the inclined angle design makes the printing position be above the rubber tube, and reserves a gap for subsequent winding; the text proportion is adapted to the rubber tube size, so that the identification is clear and does not affect the performance of the rubber tube.

[0024] S4: drying treatment: the rubber tube is subjected to 40-60 DEG C low-temperature hot air drying through the long strip-shaped air outlet of the hot air dryer, so as to accelerate the evaporation of the solvent and the curing of the resin in the ink, and weaken the intermolecular force of the rubber to delay the rebound; The evaporation of the solvent and the curing of the resin in the ink are accelerated, the identification solidification speed is improved, the intermolecular force of the rubber is weakened, and the rubber tube rebound is delayed to provide conditions for subsequent extrusion deformation.

[0025] S5: extrusion deformation: the dried rubber tube is temporarily extruded into an elliptical shape through the extrusion structure, so as to avoid the friction between the printed part and other rubber tubes during winding; The rubber tube is arranged in the short axis direction during winding, so as to avoid the direct friction between the printed part and other rubber tubes, and protect the identification which is not completely solidified.

[0026] S6: winding adjustment: the winding part winds the deformed rubber tube, so that the rubber tube is arranged in order and wound on the pipe disc.

[0027] The rubber tube is arranged in order on the winding part, so as to avoid overlapping or skewing.

[0028] Due to the adoption of the above technical scheme, the present application has the following technical effects compared with the prior art: 1、The gun head of the plasma surface treatment device and the nozzle of the ink-jet printer are arranged in an inclined state, so that the treatment of the outer wall of the rubber tube and the printing position are above the end surface of the rubber tube, the printed part is located in the gap position between the rubber tubes during winding after the treatment of the rubber tube, so that the printed part does not rub with the wound rubber tube, and the problem that the printed part is not completely solidified and is wiped off is avoided.

[0029] 2、The application provides a continuous automatic printing device and process for the surface of an automobile rubber pipe, a hot air dryer is arranged as a drying component to dry the printed rubber pipe, which can make the printed part quickly solidify, and the hot air acts on the rubber pipe to weaken the intermolecular force of the rubber, so that the molecular chain segment is more easily "relaxed", the "driving force" of the elastic recovery is temporarily reduced, thereby delaying the rebound speed, and an extrusion component is further arranged, which can temporarily flatten the rubber pipe into an oval shape in cross section, and the long axis direction of the deformed rubber pipe is perpendicular to the axis direction of the winding component, and the short axis direction is parallel to the axis direction of the winding component, so that the rubber pipe is arranged in the short axis direction in the axial direction when it is wound on the winding component, and is restored in a short time, avoiding the problem that the printed part is wiped off due to too close between the rubber pipes during the winding process, and improving the printing effect.

[0030] 3、The application can flexibly adjust the distance of the pressure roller according to the diameter of the rubber pipe by arranging the adjusting block with adjustable distance and connecting the pressure roller for extruding the rubber pipe on the adjusting block by the elastic structure, so as to meet the extrusion demand of the rubber pipe in different degrees and adapt to the rubber pipes with different materials or diameters.

[0031] 4、The application can limit the rubber pipe by arranging the positioning component, and the specific limiting mode is to prevent the circumferential rotation of the rubber pipe, not to limit the axial conveying of the rubber pipe, and to provide a support point to reduce the sag of the printed part, so that the printed part of the rubber pipe is straighter and more stable, the printed part is ensured to be on the same axis of the rubber pipe, the plasma treatment part and the printed part are ensured to be in the same area, and the deviation of the two treatment parts is avoided to affect the printing effect.

[0032] 5、The application vertically leads out the rubber pipe from the upper side by arranging the straightening component behind the unwinding component, straightens and turns the rubber pipe along the guide wheels, and finally sends the rubber pipe into the treatment area in the coaxial mode with the treatment position, and the rubber pipe only moves linearly in the process without rotating around its axis, so that the released coaxial rubber pipe does not have the fluctuation caused by twisting, and does not have the periodic corrugation caused by twisting, thereby reducing the misalignment caused by the twisting of the rubber pipe in the subsequent printing process. BRIEF DESCRIPTION OF DRAWINGS

[0033] The application will be further described below with reference to the drawings.

[0034] Figure 1 It is a structural schematic view of the first perspective of the whole application; Figure 2 It is a structural schematic view of the second perspective of the whole application; Figure 3 It is a main view structural schematic view of the whole application; Figure 4This is a schematic diagram of the three-dimensional structure of the positioning component of the present invention; Figure 5 This is a schematic diagram of the split structure of the positioning component of the present invention; Figure 6 A schematic diagram of the structure of the installation of the plasma surface processor and the inkjet printer of the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the base of the present invention; Figure 8 It is a three-dimensional schematic diagram of the extrusion structure of the present invention; Figure 9 This is a schematic diagram of the structure of the winding tube reel on the winding component of the present invention; Figure 10 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 11 For the present invention Figure 8 Enlarged view of point B in the middle; Figure 12 For the present invention Figure 9 An enlarged view of point C in the middle and a schematic diagram showing several printing schemes based on this view.

[0035] In the figure: 1. Unwinding component; 2. Rewinding component; 3. Straightening component; 301. Upper guide frame; 302. First guide wheel; 303. Second guide wheel; 304. Third guide wheel; 305. Traction ring; 4. Positioning component; 401. Positioning seat; 402. Slide; 403. Transmission box; 404. First slide bar; 405. First slider; 406. First spring; 407. Center gear; 408. Rack; 409. Strip groove; 410. Cylinder; 411. Clamping block; 412. Slide; 413. Second slide bar; 414. Second spring; 415. Second slider; 416. 6. Protrusion; 501. Base; 502. Mounting ring; 503. Inner gear ring; 504. Adjustment motor; 505. Drive gear; 506. Mounting rod; 507. Plasma surface processor; 508. Inkjet printer; 6. Extrusion structure; 601. Adjustment seat; 602. Screw; 603. Adjustment block; 604. Pressure rod; 605. Third spring; 606. L-shaped plate; 607. Pressure roller; 608. Limit block; 609. Pressure sensor; 701. Base; 702. Linear module; 703. Carrier plate; 8. Drying component; 9. Main body; 10. Auxiliary support wheel. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the embodiments.

[0037] Example 1 like Figures 1-12As shown, the present application provides a kind of continuous automatic printing device for automobile rubber tube surface, including main body 9, plasma surface processor 507, ink-jet printer 508, drying component 8;It further includes: unwinding component 1, it is arranged at the front of main body 9, for releasing rubber tube;Straightening component 3, for straightening rubber tube after unwinding;Positioning component 4, it is arranged in the two sides of plasma surface processor 507 and ink-jet printer 508, for preventing rubber tube from deflecting in the circumferential direction in the process of traction;Winding component 2, it is arranged at the tail of main body 9, for winding rubber tube after printing;The gun head of plasma surface processor 507 and the spray head of ink-jet printer 508 are all with ground 30 ° ~ 60 ° angle, the height of printing text on rubber tube by ink-jet printer 508 accounts for 8 % ~ 16 % of rubber tube outer wall perimeter;Extrusion structure 6 is provided on the table of main body 9 and located at the rear of drying component 8, and the extrusion structure 6 is used to temporarily extrude and deform rubber tube, the long axis direction of the deformed rubber tube is perpendicular to the axis direction of winding component 2, and the short axis direction is parallel to the axis direction of winding component 2;Drying component 8 is set as hot air dryer, including mounting seat and hot air gun fixedly connected to the top of mounting seat, and the output part of hot air gun is long strip-shaped air outlet, for providing strip-shaped hot air along the rubber tube traction path.

[0038] In the embodiment, by setting the gun head of plasma surface processor 507 and the spray head of ink-jet printer 508 in an inclined state, the processing and printing positions of rubber tube outer wall are located in the oblique upper side of rubber tube end face, so that the printing position is just located in the gap position between rubber tubes when winding, so that the printing position does not rub with the winding rubber tube, thereby avoiding the problem that the printing position is wiped off before complete solidification, and the actual printing effect can be referred to Figure 9 and Figure 12 , wherein Figure 9 shows the profile of rubber tube and winding pipe during winding process, and for clear display of printing position, the profile line of rubber tube is not shown, and Figure 9 It can be known that the printing position of rubber tube is opposite to the intermittent position of adjacent rubber tube, so it will not be rubbed off;As Figure 12 , shows the case that different printing content height ratios correspond to different inclination angles; Further, in order to improve processing efficiency, unwinding component 1 is arranged at the front end of ink-jet printer 508, and winding component 2 is arranged at the rear end of ink-jet printer 508, so that the unwinding and winding process can be completed to perform the above printing operation, realizing continuous automatic printing;After unwinding, rubber tube passes through straightening component 3 to release internal stress to avoid distortion in subsequent processing process;Positioning component 4 is arranged at the front end of plasma surface processor 507 and the rear end of ink-jet printer 508, which can fix the circumferential direction of rubber tube during plasma treatment and printing, but does not hinder its transportation in axial direction, thereby further avoiding the deflection of rubber tube, and ensuring that the printing position is always on the same axis.

[0039] In addition, after printing is completed, the rubber tube needs to be wound up, although the drying part 8 is used for drying during the process, due to the limited time, the printing part is still not completely solidified, and the printing part is easily wiped off during the winding process due to the friction between the rubber tubes; In the present embodiment, the hot air dryer is provided as the drying part 8 for drying the printed rubber tube, which can quickly solidify the printing part, and through the action of hot air on the rubber tube, the intermolecular force of the rubber is weakened, the molecular chain segment is more easily “relaxed”, the “driving force” of elastic recovery is temporarily reduced after being flattened, thereby delaying the speed of elastic recovery. Based on this scheme, an extrusion part is also provided, which can temporarily flatten the rubber tube into an elliptical shape in cross section, and the long axis direction of the deformed rubber tube is perpendicular to the axis direction of the winding part 2, and the short axis direction is parallel to the axis direction of the winding part 2, so that the rubber tube is arranged in the short axis direction in the axial direction when it is wound on the winding part 2, and it is restored in a short time, avoiding the problem that the printing part is wiped off due to too close contact between the rubber tubes during the winding process, and improving the printing effect.

[0040] Preferably, the output mode of the hot air dryer is 40-60°C medium-low temperature heating, which can significantly accelerate the evaporation speed of the solvent in the ink (molecular motion is intensified, and the solvent is more easily separated from the ink film), while moderately increasing the activity of the resin molecules, promoting their cross-linking or hardening reaction, thereby accelerating the solidification of the printed mark, and without damaging the rubber tube, but slowing down the speed of elastic recovery of the rubber tube.

[0041] It should be particularly noted that the printing text height accounts for 8-16% of the circumference of the outer wall of the rubber tube, that is, the font size covers an arc of about 30-60° (less than this interval), so as to avoid the font being too large to exceed the contact position with the adjacent rubber tube, thereby affecting the effect of inclined printing in the scheme (for details, please refer to Figure 9 and Figure 12 As shown, when the printed text is too large, it will easily cross the contact position between adjacent rubber tubes).

[0042] For example Figures 1-5As shown, preferably, the extrusion structure 6 comprises an adjusting seat 601 fixedly connected to the main body 9, two screw rods 602 are symmetrically and rotatably connected to the inner side of the adjusting seat 601, and the two screw rods 602 are fixedly connected at one end close to each other, one end of one of the screw rods 602 extends to the outside of the adjusting seat 601 and is fixedly connected with a knob, two adjusting blocks 603 are symmetrically and threadedly connected to the outside of the two screw rods 602, the adjusting blocks 603 are slidably connected with the adjusting seat 601, a through hole is formed in the adjusting block 603, a pressure rod 604 is slidably connected to the inner wall of the through hole, one end close to each other of the two pressure rods 604 is fixedly connected with an L-shaped plate 606, and one end away from each other of the pressure rods 604 is fixedly connected with a limiting block 608. A third spring 605 is sleeved outside the pressure rod 604 and between the adjusting block 603 and the L-shaped plate 606, and the top of the L-shaped plate 606 is rotatably connected with a compression roller 607.

[0043] In actual production process, it may be necessary to print rubber pipes of different diameters or materials, which means that different extrusion degrees are required to meet the production requirements. In the embodiment, by controlling the rotation of the two screw rods 602, the two adjusting blocks 603 can be moved towards or away from each other, and the L-shaped plate 606 and the compression roller 607 can be moved, thereby meeting the extrusion requirements of the rubber pipe to different degrees to adapt to rubber pipes of different materials or diameters.

[0044] In operation, the knob is first rotated to drive the two coaxial screw rods 602 to rotate synchronously, so that the two adjusting blocks 603 move synchronously away from each other, and the two compression rollers 607 move away from each other, thereby the rubber pipe can be easily inserted between the two compression rollers 607. The rubber pipe is inserted between the two compression rollers 607 and pulled, and then the knob is rotated in the opposite direction to the above operation, the screw rods 602 are reversely rotated to drive the two adjusting blocks 603 to move towards each other, and the two compression rollers 607 move towards each other, thereby the rubber pipe is slightly flattened. Since the rubber pipe is subjected to low-temperature heating treatment (drying) before flattening, the resilience of the rubber pipe temporarily decreases, so the rubber pipe does not rebound immediately, but gradually rebounds after winding is completed. The rubber pipe in the flattened state is arranged in the pipe disc in the direction parallel to the axis, so the rubber pipe does not need to rub against the rubber pipe that has been wound during arrangement, thereby reducing the scratching effect on the printed part. It should be particularly noted that the above scheme delays the rebound of the rubber pipe by drying the rubber pipe at a low temperature, and the temperature does not damage or cause permanent deformation of the rubber pipe. The rubber pipe can be used normally after the temperature returns to normal at room temperature.

[0045] Embodiment 2 As Figure 4 , Figure 5 and Figure 10As shown, on the basis of embodiment 1, the application provides a technical scheme: preferably, the positioning component 4 comprises a positioning seat 401 fixedly connected to the table top of the main body 9, a sliding table 402 slidingly connected to the top of the positioning seat 401, a transmission box 403 fixedly connected to the top of the sliding table 402, two first sliding rods 404 symmetrically fixedly connected between the inner walls of the transmission box 403, a first sliding block 405 slidingly connected to the outside of each first sliding rod 404, a rack 408 fixedly connected to the side close to each other of the two first sliding blocks 405, a central gear 407 rotationally connected between the transmission box 403 and the sliding table 402, the central gear 407 being meshingly connected with the two racks 408, a first spring 406 sleeved on the outside of each first sliding rod 404, and the two first springs 406 being centrally symmetrical, two strip-shaped grooves 409 centrally and symmetrically formed in the transmission box 403, the first sliding block 405 penetrating through the strip-shaped grooves 409 and fixedly connected with a clamping block 411, the side close to each other of the clamping block 411 being provided with an arc surface recessed to the middle part, and the arc surface part of the clamping block 411 being made of rubber material; a gas cylinder 410 fixedly installed on the top of the sliding table 402, the piston rod of the gas cylinder 410 being in contact with the side of the first sliding block 405 away from the first spring 406; a sliding groove 412 formed in the middle part of the positioning seat 401, a second sliding rod 413 fixedly connected between the inner walls of the sliding groove 412, a second sliding block 415 slidingly connected to the outside of the second sliding rod 413, the second sliding block 415 being fixedly connected with the sliding table 402, and a second spring 414 sleeved on the outside of the second sliding rod 413.

[0046] Although the above scheme sets the straightening component 3 to straighten the rubber pipe before printing, since the rubber pipe extends along the axis for a large length, it is inevitable to shake during traction, and the part not supported by the rubber pipe bends downward, so that the printing process cannot guarantee to be along the position and path as envisaged by the scheme; In the embodiment, by setting the positioning component 4, the rubber pipe can be limited, and the specific limiting mode is to prevent it from rotating in the circumferential direction, not to limit the conveying of the rubber pipe in the axial direction, and to provide a support point to reduce the sag of the printing part, so that the printing part of the rubber pipe is straighter and more stable, which guarantees that the printing part is on the same axis of the rubber pipe, and also guarantees that the plasma treatment part and the printing part are in the same area, avoiding the deviation of the two treatment parts to affect the printing effect.

[0047] During the working process, the piston rod of the initial cylinder 410 is in the extended state, so that the first slider 405 extrudes the first spring 406, and at the same time, the two clamping blocks 411 are in the relatively far away state, and the rubber tube can pass easily; when the plasma treatment and printing are needed, the cylinder 410 is controlled to retract, so that the first slider 405 moves to the side close to the cylinder 410 under the rebounding action of the first spring 406, and the other side of the first slider 405 moves synchronously through the centering structure composed of the rack 408 and the gear, the movement tracks of the two first sliders 405 are centrally symmetric, and the two clamping blocks 411 move to the side close to each other, so that the rubber tube is clamped and slightly flattened, and the cross section of the flattened rubber tube is non-circular, so it is difficult to deflect, thereby ensuring that the rubber tube in the area between the two positioning components 4 cannot deflect in the circumferential direction. After clamping, the rubber tube is still in the traction conveying state, and under the action of the friction force between the clamping block 411 and the rubber tube, the structure on the slide table 402 and the top thereof is pulled and moves in the traction direction, and in the process, the second slider 415 extrudes the second spring 414 to compress it (the compressible distance is greater than the distance from before the plasma treatment to after the printing). After the printing is completed, the cylinder 410 is controlled to move to the initial state (the extended state), and the two first sliders 405 and the clamping blocks 411 move to the side away from each other through the centering structure, and the rubber tube is released; after the rubber tube is released, the clamping block 411 also loses the traction of the friction force, so as to reset under the rebounding action of the second spring 414, and wait for the next positioning.

[0048] It should be particularly pointed out that in the actual production process, the printed part on the rubber tube is not continuously printed along the axis, but is printed once every interval, and the reset area of the clamping block 411 in the above scheme is included in the interval area segment in the actual production process.

[0049] Example 3 As Figure 1 , Figure 2 and Figure 3As shown, on the basis of Embodiment 2, the present application provides a technical solution: preferably, the straightening component 3 comprises an upper guide frame 301, the first guide wheel 302 is arranged on the side of the upper guide frame 301 close to the unwinding component 1, the first guide wheel 302 is arranged above the unwinding component 1, the first guide wheel 302 is arranged along the tangent direction of the rubber tube unwinding disc, and the rubber tube is vertically upwardly led to pass through the first guide wheel 302; the traction ring 305 is fixedly connected to the side of the upper guide frame 301 close to the first guide wheel 302, and the rubber tube is vertically upwardly led to the first guide wheel 302 through the traction ring 305 after being released from the unwinding disc; the second guide wheel 303 and the third guide wheel 304 are arranged on the side of the upper guide frame 301 away from the first guide wheel 302, the second guide wheel 303 is arranged at the same height as the first guide wheel 302, the rubber tube passes through the second guide wheel 303 after passing through the first guide wheel 302 and becomes vertically downwardly led; the lower edge height of the third guide wheel 304 is consistent with the center height of the subsequent rubber tube printing production line, and the rubber tube passes through the third guide wheel 304 after passing through the second guide wheel 303 and becomes horizontally led.

[0050] Since the rubber tube has stress in the winding state after unwinding, that is, the rubber tube has a tendency to curl, the rubber tube is prone to deflection in the subsequent printing process, which cannot guarantee printing along the same axis; In the present embodiment, the unwinding component 1 is internally provided with a drive capable of controlling the active rotation of the unwinding disc, the unwinding disc is driven to rotate by the unwinding component 1, and the rubber tube is vertically led from above, the rubber tube only moves in a straight line without rotating around its own axis, so that the released coaxial rubber tube does not have fluctuations caused by torsion and does not have periodic corrugation caused by torsion, thereby reducing the misalignment caused by the torsion of the rubber tube in the subsequent printing process.

[0051] In work, the rubber tube is released from the unwinding disc and sequentially passes through the traction ring 305, the first guide wheel 302, the second guide wheel 303 and the third guide wheel 304, and then enters the processing area (including positioning, plasma treatment and printing), the state of the rubber tube between the above-mentioned links is vertically upwardly led, horizontally led and vertically downwardly led in turn, and after passing through the third guide wheel 304, the rubber tube enters the processing area along the horizontal direction, and the height of the rubber tube after passing through the third guide wheel 304 is coaxial with the subsequent processing position, so that the rubber tube only moves in a straight line without rotating around its own axis, and does not have fluctuations caused by torsion.

[0052] As Figure 2 , Figure 8 and Figure 11As shown, preferably, the tail of the main body 9 is fixedly connected with a base 701, the top of the base 701 is fixedly installed with a linear module 702, the movable end of the linear module 702 is fixedly connected with a carrier plate 703, the linear module 702 can control the carrier plate 703 to do reciprocating linear motion, and the winding component 2 is installed on the top of the carrier plate 703; one side of the adjusting block 603 is fixedly installed with a pressure sensor 609, the limiting block 608 is in contact with the signal acquisition part of the pressure sensor 609, and the pressure sensor 609, the linear module 702 and the winding component 2 are electrically connected with an external control device.

[0053] After the printing of the rubber tube, winding is needed, and the winding needs to ensure that each layer of the rubber tube is wound in a spiral manner, and the number of turns of each layer is N, and then the next layer is wound. Therefore, in the embodiment, the winding process controls the rotation of the pipe disc through the unwinding component 1, and controls the slow movement of the entire unwinding component 1 (and the pipe disc) on the axis through the linear module 702. The movement is reciprocating, and the stroke is the distance between the two inner sides of the pipe disc, which is denoted as L. The movement speed of the movable end of the linear module 702 is L / N per revolution of the pipe disc. That is, the pipe disc is wound one turn, and the corresponding axial movement is made to the position of the next turn, so that the pipe disc can be completely laid out; Based on the above setting, the scheme also sets a redundant control system, that is, the pressure sensor 609 is arranged on the adjusting block 603, and the signal acquisition part of the pressure sensor 609 is in contact with the limiting block 608. In the above scheme, the third spring 605 is used to press the L-shaped plate 606, and the pressure roller 607 acts on the rubber tube to make the rubber tube flat. Under normal circumstances, the limiting blocks 608 on both sides have equal pressure on the pressure sensor 609, and the pressure comes from the force of the third spring 605 on the L-shaped plate 606. However, when the winding process does not match the traction position of the pipe disc, the rubber tube will press the pressing roller 607 on one side, and the third spring 605 on the side will be extruded. The limiting block 608 driven by the pressure rod 604 moves to reduce the force on the pressure sensor 609, and the other side is extruded due to the loss of extrusion, so that the pressure sensor 609 is further extruded under the action of the third spring 605, resulting in an increase in the pressure signal. The pressure signals on both sides increase and decrease, which indicates that the traction and winding do not match. By controlling the linear module 702 to increase or decrease the movement speed, adaptive adjustment can be completed until the pressure signals on both sides are equal.

[0054] The specific method of the above adjustment is: when the direction of the pressure reduction side is the same as the moving direction of the linear module 702, the moving speed of the linear module 702 needs to be controlled to slow down; when the direction of the pressure reduction side is opposite to the moving direction of the linear module 702, the moving speed of the linear module 702 needs to be controlled to increase. The former is because when the linear module 702 moves too fast, the same side extrusion roller 607 is extruded, which causes the signal detected by the pressure sensor 609 on the same side to decrease, so the speed needs to be slowed down; the latter is because when the linear module 702 moves too slowly, the opposite side extrusion roller 607 is extruded, which causes the signal detected by the pressure sensor 609 on the opposite side to increase, so the speed needs to be increased.

[0055] Embodiment 4 As shown in Figure 6 and Figure 7 Based on embodiment 3, the application provides a technical solution: preferably, the bottom surface of the main body 9 is fixedly connected with a base 501, the inner side of the base 501 is rotatably connected with a mounting ring 502, one side of the mounting ring 502 is fixedly connected with an inner gear ring 503, a mounting rod 506 is fixedly connected through the mounting ring 502, the gun head of the plasma surface treater 507 and the nozzle of the inkjet printer 508 are both fixedly installed on the mounting rod 506, the bottom surface of the main body 9 is fixedly installed with an adjusting motor 504, the output end of the adjusting motor 504 is fixedly connected with a drive gear 505, and the drive gear 505 is meshingly connected with the inner gear ring 503.

[0056] In the scheme, the output ends of the plasma surface treater 507 and the inkjet printer 508 are arranged in an inclined state to reduce scratching during winding, but in actual production, the position of the related information of the rubber tube in this way is inclined relative to the axis direction, and it is difficult for people to quickly read the printed part from the outside after the tube disc is packed, and it may be necessary to read from the side close to the printing of the tube disc, such as the printed position of the first rubber tube on the left side shown in Figure 12 , and the printed information can be identified only by standing on the right side as shown in the figure during reading, so it is not convenient for actual operation; In this embodiment, the gun head of the plasma surface treater 507 and the nozzle of the inkjet printer 508 are installed on the adjustable mounting rod 506, and during the printing process when the winding component 2 is in a non-outermost winding state, the adjusting rod is controlled to make the gun head of the plasma surface treater 507 and the nozzle of the inkjet printer 508 form an angle of 30°-60° with the ground, that is, the printing effect required by the scheme is achieved; when printing to the last small section of the rubber tube, the section of the rubber tube is wound on the outermost layer of the winding component 2, so there is no friction of other rubber tubes on the side away from the axis, but if the printed part is printed on this side, it greatly facilitates reading.

[0057] During operation, the adjusting motor 504 is controlled to work, driving the driving gear 505 to rotate, so that the inner gear ring 503 rotates, and the mounting ring 502 rotates, further, the mounting rod 506 rotates, the inclination angle of the gun head of the plasma surface processor 507 and the nozzle of the ink-jet printer 508 is adjusted.

[0058] As shown in Figure 1 , Figure 2 and Figure 3 , preferably, a plurality of wheel seats are fixedly connected to the table top of the main body 9, and the top of each wheel seat is rotatably connected with an auxiliary supporting wheel 10.

[0059] In this embodiment, the rubber tube needs to pass through a long path during production, which is easy to cause the middle part of the rubber tube to sag or shake, therefore, a plurality of auxiliary supporting wheels 10 are additionally arranged on the rubber tube traction path to assist in supporting the rubber tube, so as to avoid the printing misplacement caused by the sagging of the rubber tube, thereby improving the printing effect.

[0060] As shown in Figure 2 , Figure 4 and Figure 10 , preferably, the side of the arc surface of the clamping block 411 is provided with a plurality of protrusions 416 parallel to the traction direction of the rubber tube.

[0061] In this embodiment, the protrusions 416 are arranged to improve the gripping ability of the clamping block 411, and further reduce the deflection of the rubber tube in the circumferential direction, thereby improving the stability of the processing process.

[0062] The application also provides a continuous automatic printing process for the surface of a rubber tube for automobile, which comprises the following steps: S1: unwinding and straightening: the rubber tube is released through the unwinding part 1, and is guided by the straightening part 3 in sequence, and is conveyed along a straight line without circumferential torsion, so as to release the internal curling stress and reduce the torsion deviation in subsequent processing; The internal curling stress of the rubber tube is released, the periodic corrugation caused by torsion is avoided, and the positional deviation in subsequent processing is reduced.

[0063] S2: positioning and constraint: the rubber tube enters the positioning part 4, and the positioning part 4 is used to limit the circumferential deflection of the rubber tube without hindering the axial conveying, so as to ensure that the processing and printing positions are consistent; The stable support is provided for the plasma processing and printing, the circumferential deflection of the rubber tube is ensured, and the plasma processing area and the printing area are accurately corresponded.

[0064] S3: Plasma treatment and code spraying: The gun head of the plasma surface treater 507 is at an angle of 30°-60° with the ground to treat the surface of the rubber tube, and then the nozzle of the code sprayer 508 sprays the text at the same angle in the treatment area to ensure the accuracy of the printing position; The plasma treatment improves the surface free energy and ink adhesion of the rubber tube; the inclined angle design makes the printing position above the rubber tube, leaving a gap for subsequent winding; the text proportion is adapted to the size of the rubber tube to ensure clear identification without affecting the performance of the rubber tube.

[0065] S4: Drying treatment: The rubber tube is dried by the long air outlet of the hot air dryer at 40-60°C, accelerating the evaporation of the ink solvent and the curing of the resin, while weakening the intermolecular force of the rubber to delay the rebound; The accelerated evaporation of the solvent in the ink and the cross-linking and curing of the resin improve the solidification speed of the identification; at the same time, the intermolecular force of the rubber is weakened, delaying the rebound of the rubber tube and providing conditions for subsequent extrusion deformation.

[0066] S5: Extrusion deformation: The dried rubber tube is temporarily extruded into an oval shape by the extrusion structure 6 to avoid friction between the printed part and other rubber tubes during winding; The rubber tube is arranged in the short axis direction during winding to avoid direct friction between the printed part and other rubber tubes, protecting the identification that has not completely solidified.

[0067] S6: Winding adjustment: The winding component 2 winds the deformed rubber tube to make the rubber tube neatly arranged and wound on the pipe disc.

[0068] The rubber tube is neatly arranged on the winding component to avoid overlapping or skewing; pressure feedback adjustment ensures that the winding speed matches the traction speed, reducing rubber tube stretching or accumulation.

[0069] The above general description of the present application is detailed, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A continuous automatic printing device for the surface of an automobile hose, comprising a main body (9), a plasma surface processor (507), an inkjet printer (508), and a drying component (8); characterized in that: Also includes: An unwinding component (1) is provided at the front of the main body (9) and is used to release the hose; A straightening component (3) for straightening the hose after unwinding; Positioning components (4) are provided on both sides of the plasma surface processor (507) and the inkjet printer (508) to prevent the hose from deflecting in the circumferential direction during the pulling process; A reeling component (2) is provided at the rear of the main body (9) and is used to reel in the printed rubber hose; The gun head of the plasma surface processor (507) and the nozzle of the inkjet printer (508) are both at an angle of 30° to 60° to the ground, and the height of the text printed on the hose by the inkjet printer (508) accounts for 8% to 16% of the circumference of the outer wall of the hose; An extrusion structure (6) is provided on the table of the main body (9) and behind the drying component (8). The extrusion structure (6) is used to temporarily extrude and deform the hose. The deformed hose has a long axis perpendicular to the axis of the reeling component (2) and a short axis parallel to the axis of the reeling component (2). The drying component (8) is configured as a hot air dryer, comprising a mounting base and a hot air gun fixedly connected to the top of the mounting base. The output portion of the hot air gun is a long strip-shaped air outlet, which is used to provide strip-shaped hot air along the hose traction path.

2. The continuous automatic printing device for the surface of an automobile hose according to claim 1, characterized in that: The extrusion structure (6) comprises an adjustment seat (601) fixedly connected to the main body (9), the inner side of the adjustment seat (601) is symmetrically connected to two screw rods (602), the two screw rods (602) are fixedly connected at their adjacent ends, one end of one of the screw rods (602) extends to the outside of the adjustment seat (601) and is fixedly connected to a knob, the outer sides of the two screw rods (602) are symmetrically threadedly connected to two adjustment blocks (603), the adjustment blocks (603) and the adjustment seat (601) are fixedly connected. Sliding connection, the adjustment block (603) is provided with a through hole, and the inner wall of the through hole is slidably connected to a pressure rod (604), the ends of the two pressure rods (604) that are close to each other are fixedly connected to an L-shaped plate (606), and the ends of the pressure rods (604) that are away from each other are fixedly connected to a limiting block (608), a third spring (605) is sleeved outside the pressure rod (604) and located between the adjustment block (603) and the L-shaped plate (606), and the top of the L-shaped plate (606) is rotatably connected to a pressure roller (607).

3. The continuous automatic printing device for the surface of an automobile hose according to claim 2, characterized in that: The positioning component (4) includes a positioning seat (401) fixedly connected to the table of the main body (9), the top of the positioning seat (401) is slidably connected to a slide (402), the top of the slide (402) is fixedly connected to a transmission box (403), two first slide bars (404) are symmetrically fixedly connected between the inner walls of the transmission box (403), the outside of each of the first slide bars (404) is slidably connected to a first slider (405), and the sides of the two first sliders (405) that are close to each other are fixedly connected to a rack (408), a central gear (407) is rotatably connected between the transmission box (403) and the slide (402), the central gear (407) is meshed with the two racks (408), the outside of each of the first slide bars (404) is covered with a first spring (406), and the two first springs (406) are centrally symmetrical, and the transmission box (403) is provided with a plurality of first springs (406). Two strip grooves (409) are provided in a centrally symmetrical manner, the top of the first slider (405) passes through the strip groove (409) and is fixedly connected to a clamping block (411), the sides of the clamping blocks (411) close to each other have an arc surface that is concave toward the middle, and the arc surface portion of the clamping block (411) is set to a rubber material; a cylinder (410) is fixedly installed on the top of the slide (402), and the piston rod of the cylinder (410) contacts the side of the first slider (405) away from the first spring (406); a slide groove (412) is provided in the middle of the positioning seat (401), and a second slide rod (413) is fixedly connected between the inner walls of the slide groove (412), and the outside of the second slide rod (413) is slidably connected to the second slider (415), the second slider (415) is fixedly connected to the slide (402), and the outside of the second slide rod (413) is covered with a second spring (414).

4. The continuous automatic printing device for the surface of an automobile hose according to claim 3, characterized in that: The straightening component (3) includes an upper guide frame (301), a first guide wheel (302) is provided on a side of the upper guide frame (301) close to the unwinding component (1), the first guide wheel (302) is provided above the unwinding component (1), and the first guide wheel (302) is provided along the tangential direction of the unwinding disk on the unwinding component (1), and the rubber hose is led vertically upward and then bypasses the first guide wheel (302); a traction ring (305) is fixedly connected to a side of the upper guide frame (301) close to the first guide wheel (302), and the rubber hose is released from the unwinding disk and moves toward the first guide wheel (302) through the traction ring (305) and The pulling direction is vertically upward; a second guide wheel (303) and a third guide wheel (304) are provided on a side of the upper guide frame (301) column away from the first guide wheel (302); the second guide wheel (303) and the first guide wheel (302) are provided at the same height; after the rubber hose passes around the first guide wheel (302), it passes around the second guide wheel (303) and changes to a vertical downward direction; the height of the lower edge of the third guide wheel (304) is consistent with the center height of the subsequent rubber hose printing production line; after the rubber hose passes around the second guide wheel (303), it passes around the third guide wheel (304) and changes to a horizontal direction.

5. The continuous automatic printing device for the surface of an automobile hose according to claim 4, characterized in that: The tail of the main body (9) is fixedly connected to a base (701), the top of the base (701) is fixedly installed with a linear module (702), the movable end of the linear module (702) is fixedly connected to a carrier plate (703), the linear module (702) can control the carrier plate (703) to perform reciprocating linear motion, and the winding component (2) is installed on the top of the carrier plate (703); a pressure sensor (609) is fixedly installed on one side of the adjustment block (603), the limit block (608) is in contact with the signal collection part of the pressure sensor (609), and the pressure sensor (609), the linear module (702) and the winding component (2) are all electrically connected to an external control device.

6. The continuous automatic printing device for the surface of an automobile hose according to claim 5, characterized in that: A base (501) is fixedly connected to the table of the main body (9), and a mounting ring (502) is rotatably connected to the inner side of the base (501), and an inner gear ring (503) is fixedly connected to one side of the mounting ring (502). A mounting rod (506) is fixedly connected to the mounting ring (502), and the gun head of the plasma surface processor (507) and the nozzle of the inkjet printer (508) are both fixedly mounted on the mounting rod (506). An adjusting motor (504) is fixedly mounted on the table of the main body (9), and an output end of the adjusting motor (504) is fixedly connected to a driving gear (505), and the driving gear (505) is meshed with the inner gear ring (503).

7. The continuous automatic printing device for the surface of an automobile hose according to claim 6, characterized in that: A plurality of wheel seats are fixedly connected to the table top of the main body (9), and the tops of the wheel seats are rotatably connected to auxiliary support wheels (10).

8. The continuous automatic printing device for the surface of an automobile hose according to claim 3, characterized in that: A plurality of protrusions (416) parallel to the pulling direction of the hose are provided on one side of the arc surface of the clamping block (411).

9. A continuous automated printing process for the surface of an automotive hose, characterized by: The continuous automatic printing device for the surface of an automobile hose according to any one of claims 1 to 8 comprises the following steps: S1: Unwinding and straightening: The hose is released through the unwinding component (1), and the hose is guided by the straightening component (3) in turn, transported in a straight line without circumferential twisting, thereby releasing the internal curling stress and reducing the twisting deviation in subsequent processing; S2: Positioning constraint: The rubber hose enters the positioning component (4), and the positioning component (4) is used to limit the circumferential deflection of the rubber hose without hindering the axial conveying, so as to ensure that the processing and printing positions are consistent; S3: Plasma treatment and inkjet printing: The plasma surface treatment device (507) treats the hose surface at an angle of 30° to 60° to the ground, and then the inkjet printer (508) prints text on the treated area at the same angle to ensure accurate printing position; S4: Drying: The hose passes through the long strip outlet of the hot air dryer and is dried with medium-low temperature hot air of 40-60℃, which accelerates the volatilization of ink solvent and the curing of resin, while weakening the interaction between rubber molecules to delay rebound; S5: Extrusion deformation: The dried hose passes through the extrusion structure (6) and is temporarily extruded into an elliptical shape to avoid friction between the printed part and other hoses during rewinding; S6: Winding adjustment: The winding component (2) winds the deformed hose so that the hose is neatly arranged and wound on the hose reel.

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