A three-ball garnet paint spraying device and method

Abstract

This invention belongs to the field of cutting tool manufacturing technology, and specifically relates to a painting device and method for three-ball decorative knives, comprising: a conveyor belt; a painting support frame located outside the conveyor belt; and a painting output mechanism located above the conveyor belt, with one end of the painting output mechanism facing away from the conveyor belt mounted on the painting support frame; wherein, the conveyor belt is used to carry and transport the cutting tool through the painting mechanism for paint spraying. The beneficial effects of this invention are: the painting output mechanism enables effective painting of the surface of the three-ball decorative knife, avoiding excess paint spraying into the chip removal groove, eliminating the need for subsequent cleaning, and making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of cutting tool manufacturing technology, and in particular to a three-ball decorative knife painting device and method. Background Technology

[0002] A three-ball decorative knife is a type of tool used for cutting wood. It has three sets of spherical blades and V-shaped chip removal grooves distributed on both sides of the blade along its length. During use, it can create three arc-shaped grooves on the wood for other external arc-shaped components to fit into. The outer arc surface of the three-ball decorative knife is prone to oxidation and corrosion during use. Therefore, the outer arc surface of the three-ball decorative knife is painted during manufacturing to achieve an aesthetic effect and improve its service life.

[0003] Traditional spray painting mostly involves manual application of paint, which is quite troublesome and paint is easily splattered into the chip removal tank, requiring subsequent cleaning, which is inconvenient. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a three-ball decorative knife spraying device and method to solve the above problems.

[0005] The technical solution of this invention is implemented as follows: a three-ball decorative knife spray painting device, comprising:

[0006] conveyor;

[0007] The spraying support frame is located on the outside side of the conveyor belt;

[0008] The spraying output mechanism is located above the conveyor belt, with the end of the spraying output mechanism facing away from the conveyor belt mounted on the spraying support frame;

[0009] The conveyor belt is used to carry and transport the cutting tools through the paint spraying mechanism for painting.

[0010] Furthermore, the conveyor belt includes:

[0011] Several support blocks are fixedly installed on the conveyor belt;

[0012] A limiting hole is formed on the upper end face of the support block to radially limit the tool holder of the tool;

[0013] The collection box is located inside the conveyor belt and is positioned below the spray output mechanism. One end of the collection box is fixedly installed on the spray support frame.

[0014] The conveyor belt consists of several support blocks that are evenly spaced along its length. The surface of the conveyor belt has several perforated holes. The upper end of the collection box is open. Several water mist nozzles are fixedly installed on the inner edge of the upper end of the collection box. The upper end of the support block has through holes that pass through the support block and the upper surface of the conveyor belt in sequence.

[0015] Furthermore, the spraying output mechanism includes:

[0016] The first rotating shaft is vertically arranged, and its upper end is rotatably connected to the spraying support frame.

[0017] Several grooves are circumferentially distributed on the outside of the first rotating shaft, and the lower groove wall of the groove is open.

[0018] A retaining collar is fixedly installed on the first rotating shaft and located above the slide groove;

[0019] The first sleeve has a "T" shaped cross section and is sleeved on the first rotating shaft. The upper end of the first sleeve is fixedly installed on the lower end of the fixed collar, and there is a gap between the first sleeve and the first rotating shaft.

[0020] The second sleeve is sleeved on the first rotating shaft and slidably sealed to the first sleeve. A slider that is slidably sealed to the groove is fixedly installed on the inner side of the second sleeve.

[0021] The third sleeve is fixedly installed at the lower end of the second sleeve;

[0022] The spraying assembly is located inside the third sleeve;

[0023] The spring is fitted onto the outside of the first sleeve:

[0024] The third sleeve has an opening in the middle of its upper end for the first rotating shaft to pass through. The upper and lower ends of the spring are fixedly connected to the first sleeve and the third sleeve, respectively, and a sealed cavity is formed between the first sleeve and the second sleeve.

[0025] Furthermore, the spraying components include:

[0026] The first fixing block is shaped like a "door". The left and right sides of the first fixing block are respectively fixedly installed on the inner side walls of the third sleeve.

[0027] Several nozzles are embedded in the inner wall of the first fixed block;

[0028] The second fixing block is provided in two parts. The horizontal height of the upper end face of the second fixing block is lower than the horizontal height of the upper inner wall of the first fixing block.

[0029] Slots are provided on opposite sides of the two second fixing blocks;

[0030] The pressure block is located inside the slot;

[0031] An elastic airbag is fixedly installed between the pressure block and the bottom of the slot.

[0032] The pressing block is triangular prism-shaped.

[0033] Furthermore, the spray painting support frame includes:

[0034] Support base, located on the rear side of the conveyor belt;

[0035] The first support plate is fixedly installed on the upper edge of the support base on the side facing the conveyor belt;

[0036] The second support plate is L-shaped and is detachably and fixedly installed at the lower end of the first support plate;

[0037] The first support plate and the second support plate are respectively equipped with drive components for aligning the spraying components and the cutting tools.

[0038] Furthermore, the driving components include:

[0039] A stepper motor is fixedly mounted on the upper surface of the first support plate;

[0040] A receiving groove is formed on the lower end face of the first support plate;

[0041] First drive wheel;

[0042] The second drive wheel, the first drive wheel and the second drive wheel are rotatably connected to the bottom of the receiving groove, and the outer sides of the first drive wheel and the second drive wheel are respectively provided with first teeth and second teeth that mesh with each other in the circumferential direction.

[0043] The first circular groove is formed on the lower end face of the first drive wheel;

[0044] The first claw is hinged to the wall of the first circular groove and there are several of them. The several first claws are evenly distributed along the circumference of the wall of the first circular groove.

[0045] The output shaft of the stepper motor passes through the first support plate and is fixedly connected to the first drive wheel. The upper end of the first rotating shaft passes through the second support plate, extends into the first circular groove, and is fixedly installed with the third drive wheel. The outer side of the third drive wheel is integrally formed with the first ratchet tooth corresponding to the first pawl.

[0046] Furthermore, the driver components also include:

[0047] The second circular groove is formed on the lower end face of the second drive wheel;

[0048] The second claw is hinged to the wall of the second circular groove and there are several of them. The several second claws are evenly distributed along the circumference of the wall of the second circular groove.

[0049] The second rotating shaft is located below the second circular groove, and its lower end is rotatably connected to the second support plate.

[0050] The fourth drive wheel is fixedly installed on the upper end of the second rotating shaft and located in the second circular groove. The outer side of the fourth drive wheel is integrally formed with a second ratchet tooth corresponding to the second pawl.

[0051] The half gear is fixedly installed on the second rotating shaft;

[0052] The first air collecting box is fixedly installed on the upper right side of the second support plate and is used to supply air to the first sleeve and the elastic air bag respectively;

[0053] The second air collecting box is fixedly installed on the second support plate and is adjacent to the first air collecting box. A jack is opened on one side of the second air collecting box facing the second rotating shaft. A piston block is slidably and sealingly connected in the jack. One end of the piston block背离 the jack is fixedly installed with a transmission member that cooperates with the half gear to drive the piston block to reciprocate in the jack;

[0054] Among them, the transverse section of the transmission member is in the shape of "匚". Third teeth corresponding to the half gear are integrally formed on both inner arms of the transmission member. The number of teeth of the third teeth on both sides inside the transmission member is equal to the number of teeth of the half gear respectively. When the half gear meshes with the third teeth on one side of the gear, the third teeth on the other side are separated from the half gear. A first one-way valve is fixedly installed at the bottom of the jack hole. A second one-way valve is embedded at one end of the piston block facing the bottom of the jack hole. An air inlet hole is opened on one side of the piston block. An air inlet pipe is connected between the output end of the first one-way valve and the first air collecting box.

[0055] The present invention is further arranged as follows: The first rotating shaft further includes:

[0056] The air inlet channel is located inside the first rotating shaft and is arranged along the length direction of the first rotating shaft;

[0057] The first ring groove is opened on the outside of the first rotating shaft. A plurality of air guide holes are opened at the bottom of the first ring groove;

[0058] The first clamping ring is rotatably and sealingly connected in the first ring groove. A first air guide pipe is connected between the first clamping ring and the first air collecting box. An air outlet hole for the air guide pipe to discharge air is opened inside the first clamping ring;

[0059] The first solenoid valve is embedded on the inner wall of the air inlet channel. The outlet end of the first solenoid valve is communicated with the accommodation cavity;

[0060] The second solenoid valve is embedded on the inner wall of the air inlet channel. A second air guide pipe is connected between the outlet end of the second solenoid valve and the elastic air bag;

[0061] Among them, third solenoid valves and fourth solenoid valves for exhausting are respectively embedded on the outer sides of the first sleeve and the third sleeve. The inlet end of the third solenoid valve is communicated with the accommodation cavity. The inlet end of the fourth solenoid valve is communicated with the inside of the elastic air bag. A fifth solenoid valve for connecting the air inlet channel and the third sleeve is embedded at the bottom of the first rotating shaft. Conductive sheets for connecting the solenoid valves to an external power supply are also embedded on the inner side wall of the first clamping ring and the inner side wall of the first ring groove. The external power cord is connected to the conductive sheet through penetrating the first clamping ring.

[0062] Furthermore, the third sleeve also includes:

[0063] Several sets of distance sensors are embedded in the upper part of the first fixed block and are distributed in a circular pattern.

[0064] The second annular groove is located on the outside of the third sleeve;

[0065] The second retaining ring is rotatably and sealingly connected within the second ring groove;

[0066] The second retaining ring has an inlet groove on its inner side, and the second groove has an inlet channel that passes through the first fixing block and connects to the nozzle. An inlet pipe for conveying paint liquid to the inlet channel through the inlet groove is fixedly installed on the second retaining ring.

[0067] A control method for a three-ball decorative knife spray painting device includes the following steps:

[0068] Step 1: Start the stepper motor and make it rotate counterclockwise. The first drive wheel drives the second drive wheel to rotate clockwise, and the fourth drive wheel drives the driven half gear to rotate clockwise synchronously, thereby driving the piston block to reciprocate and intake air, and compressing the external air into the first air collection box for storage.

[0069] Step 2: Insert the tool holder into the limiting hole of the support block and start the conveyor belt;

[0070] Step 3: When the cutter moves to the bottom of the third sleeve, it stops. Then, the position of the cutter is determined by several sets of distance sensors. Then, the stepper motor rotates clockwise to drive the first rotating shaft to rotate so that the spraying assembly is aligned with the cutter and then resumes counterclockwise rotation.

[0071] Step 4: The first solenoid valve is opened to allow the third sleeve to extend and cover the outside of the tool. Then the second solenoid valve expands the elastic airbag and pushes the pressure block to cover the grooves on both sides of the tool.

[0072] Step 5: Spray painting;

[0073] Step 6: Open the fourth and fifth solenoid valves to simultaneously discharge the gas in the elastic airbag and the first gas collection box, squeezing the paint mist in the third sleeve into the collection box. Then, open the third solenoid valve to discharge and reset the gas in the first sleeve.

[0074] The beneficial effects of this invention are as follows:

[0075] The spray output mechanism can effectively spray paint the surface of the three-ball trimmer, avoiding excess paint from being sprayed into the chip discharge groove;

[0076] No subsequent cleaning is required; it is easy to use and requires no manual intervention in spraying the paint.

[0077] It can effectively remove excess paint mist generated after spraying, does not easily pollute the working environment, and has good performance. Attached Figure Description

[0078] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0079] Figure 1 This is a side view of the painting device according to a specific embodiment of the present invention;

[0080] Figure 2 This is a cross-sectional view (BB) of a specific embodiment of the present invention;

[0081] Figure 3 This is a partial enlarged view of embodiment B of the present invention;

[0082] Figure 4 This is a partial enlarged view of specific embodiment A of the present invention;

[0083] Figure 5 Isometric view of the painting device according to a specific embodiment of the present invention Figure 1 ;

[0084] Figure 6 This is a partial enlarged view of specific embodiment C of the present invention;

[0085] Figure 7 Isometric view of the painting device according to a specific embodiment of the present invention Figure 2 ; Detailed Implementation

[0086] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0087] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0088] Example 1:

[0089] like Figures 1 to 7 As shown, this invention discloses a three-ball decorative knife spray painting device and method, comprising:

[0090] Conveyor belt 1;

[0091] The spraying support frame 2 is located on the outer side of the conveyor belt 1;

[0092] The spraying output mechanism is located above the conveyor belt 1, and the end of the spraying output mechanism away from the conveyor belt 1 is installed on the spraying support frame 2.

[0093] Among them, the conveyor belt 1 is used to carry the conveying cutter through the paint spraying mechanism for paint spraying.

[0094] By adopting the above technical solution, the surface of the three-ball decorative knife can be effectively painted through the spray output mechanism, which can avoid excess paint being sprayed into the chip discharge groove, eliminating the need for subsequent cleaning and making it convenient to use.

[0095] Example 2:

[0096] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0097] Furthermore, the conveyor belt 1 includes:

[0098] Several support blocks 3 are fixedly installed on the conveyor belt 1;

[0099] Limiting hole 4 is provided on the upper end face of support block 3 to radially limit the tool holder of the tool;

[0100] The collection box is located inside the conveyor belt 1 and is positioned below the spraying output mechanism. One end of the collection box is fixedly installed on the spraying support frame.

[0101] Among them, the conveyor belt 1 is divided into several support blocks 3, which are distributed at equal intervals along the length of the conveyor belt 1. The surface of the conveyor belt 1 is provided with several hollow holes. The upper end of the collection box is open. Several water mist nozzles are fixedly installed on the inner edge of the upper end of the collection box. The upper end of the support block 3 is provided with through holes that pass through the support block 3 and the upper end surface of the conveyor belt 1 in sequence.

[0102] By adopting the above technical solution, the cutting tool is radially limited by the limiting hole on the support block, making the cutting tool less prone to shaking and providing good stability. In addition, the collection box can collect the paint dripping onto the conveyor belt.

[0103] Example 3:

[0104] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0105] Furthermore, the spraying output mechanism includes:

[0106] The first rotating shaft 5 is vertically arranged, and its upper end is rotatably connected to the spraying support frame 2.

[0107] Several sliding grooves 6 are circumferentially distributed on the outside of the first rotating shaft 5, and the lower wall of the sliding groove 6 is open.

[0108] The fixing collar 7 is fixedly installed on the first rotating shaft 5 and located above the slide groove 6;

[0109] The first sleeve 8 has a "T" shaped cross section and is sleeved on the first rotating shaft 5. The upper end of the first sleeve 8 is fixedly installed on the lower end of the fixed collar 7, and there is a gap between the first sleeve 8 and the first rotating shaft 5.

[0110] The second sleeve 9 is sleeved on the first rotating shaft 5 and is slidably and sealingly connected to the first sleeve 8. A slider 10 that is slidably and sealingly connected to the slide groove 6 is fixedly installed on the inner side of the second sleeve 9.

[0111] The third sleeve 11 is fixedly installed at the lower end of the second sleeve 9;

[0112] The spraying assembly is located inside the third sleeve 11;

[0113] Spring 12 is fitted onto the outside of the first sleeve 8:

[0114] The third sleeve 11 has an opening in the middle of its upper end for the first rotating shaft 5 to pass through. The upper and lower ends of the spring 12 are fixedly connected to the first sleeve 8 and the third sleeve 11, respectively. A sealed cavity is formed between the first sleeve 8 and the second sleeve 9.

[0115] By adopting the above technical solution, after the third sleeve is aligned with the tool, the third sleeve extends to initially cover the tool, allowing the part of the tool other than the tool holder to enter the painting area. Then, in conjunction with the painting component, the tool is covered a second time, blocking the area where the chip removal groove is located, and then the painting operation is carried out. This allows the required surface of the tool to be effectively painted, avoiding splashing into the chip removal groove. After the painting is completed, the third sleeve is assisted in resetting by spring.

[0116] Example 4:

[0117] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0118] Furthermore, the spraying components include:

[0119] The first fixing block 121 is in the shape of a "door". The left and right sides of the first fixing block 121 are respectively fixedly installed on the inner side walls of the third sleeve 11.

[0120] Several nozzles 13 are embedded in the inner sidewall of the first fixing block 121;

[0121] The second fixing block 14 is provided in two parts. The horizontal height of the upper end face of the second fixing block 14 is lower than the horizontal height of the upper inner wall of the first fixing block 121.

[0122] Slot 15 is provided on one side of the two second fixing blocks 14;

[0123] Pressure block 16 is located inside slot 15;

[0124] The elastic airbag 17 is fixedly installed between the pressure block 16 and the bottom of the slot 15.

[0125] Among them, the pressing block 16 is a triangular prism.

[0126] By adopting the above technical solution, the shape and size of the pressure block are not unique and can be adapted to the size of the chip removal groove. With the setting of the elastic airbag, when the elastic airbag is ventilated, it can push the pressure block to stably cover the chip removal groove. Furthermore, with the setting of several spray nozzles, the paint can better cover the surface of the tool that needs to be painted.

[0127] Example 5:

[0128] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0129] Furthermore, the spraying support frame 2 includes:

[0130] Support seat 188 is located behind conveyor belt 1;

[0131] The first support plate 19 is fixedly installed on the upper edge of the support base 18 on the side facing the conveyor belt 1;

[0132] The second support plate 20 is L-shaped and is detachably and fixedly installed at the lower end of the first support plate 19;

[0133] The first support plate 19 and the second support plate 20 are respectively provided with drive components for aligning the spraying components and the cutting tools.

[0134] By adopting the above technical solution, the setting of the first support plate and the second support plate can provide better support, which is conducive to a more intuitive observation of the spraying device drive structure and facilitates inspection and maintenance.

[0135] Example 6:

[0136] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0137] Furthermore, the driving components include:

[0138] Stepper motor 201 is fixedly mounted on the upper surface of the first support plate 19;

[0139] The receiving groove 21 is formed on the lower end surface of the first support plate 19;

[0140] First drive wheel 22;

[0141] The second drive wheel 23, the first drive wheel 22 and the second drive wheel 23 are rotatably connected to the bottom of the receiving groove 21, and the outer sides of the first drive wheel 22 and the second drive wheel 23 are respectively provided with a first tooth 24 and a second tooth that mesh with each other in the circumferential direction.

[0142] The first circular groove 25 is formed on the lower end face of the first drive wheel 22;

[0143] The first claw 26 is hinged to the wall of the first circular groove 25 and there are several of them. The several first claws 26 are equidistantly distributed along the circumference of the wall of the first circular groove 25.

[0144] The output shaft of the stepper motor 201 passes through the first support plate 19 and is fixedly connected to the first drive wheel 22. The upper end of the first rotating shaft 5 passes through the second support plate 20, extends into the first circular groove 25, and is fixedly installed with the third drive wheel 261. The outer side of the third drive wheel 261 is integrally formed with the first ratchet 27 corresponding to the first pawl 26.

[0145] By adopting the above technical solution, when the stepper motor rotates clockwise, the first pawl, in conjunction with the third drive wheel, drives the first rotating shaft to make a clockwise fine adjustment, aligning the third sleeve with the tool. When the stepper motor rotates counterclockwise, it drives the first drive wheel to rotate synchronously counterclockwise. At this time, the first pawl and the first ratchet are not engaged, the third drive wheel does not rotate, and the first drive wheel drives the second drive wheel to rotate counterclockwise. This allows the stepper motor to perform other work outputs without affecting the first rotating shaft, resulting in high efficiency.

[0146] Example 7:

[0147] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0148] Furthermore, the driver components also include:

[0149] The second circular groove 28 is formed on the lower end face of the second drive wheel 23;

[0150] The second claw 29 is hinged to the wall of the second circular groove 28 and there are several of them. The several second claws 29 are equidistantly distributed along the circumferential direction of the wall of the second circular groove 28.

[0151] The second rotating shaft 30 is located below the second circular groove 28, and the lower end of the second rotating shaft 30 is rotatably connected to the second support plate 20.

[0152] The fourth drive wheel 31 is fixedly installed on the upper end of the second rotating shaft 30 and located in the second circular groove 28. The outer side of the fourth drive wheel 31 is integrally formed with a second ratchet 32 ​​corresponding to the second pawl 29.

[0153] Half gear 321 is fixedly mounted on the second rotating shaft 30;

[0154] The first air collection box 33 is fixedly installed on the upper right side of the second support plate 20 to supply air to the first sleeve 8 and the elastic airbag 17 respectively.

[0155] The second air collection box 34 is fixedly installed on the second support plate 20 and adjacent to the first air collection box 33. The second air collection box 34 has an insertion hole on the side facing the second rotating shaft 30. A piston block 35 is slidably and sealed in the insertion hole. A transmission component 361 that cooperates with the half gear 321 to drive the piston block 35 to reciprocate in the insertion hole is fixedly installed at the end of the piston block 35 away from the insertion hole.

[0156] Among them, the cross-section of the transmission member 361 is in the shape of a "匚". Third teeth 37 corresponding to the half gear 321 are integrally formed on both inner arms of the transmission member 361. The number of teeth of the third teeth 37 on both sides inside the transmission member 361 is equal to the number of teeth of the half gear 321 respectively. When the half gear 321 meshes with the third teeth of the gear on one side, the third teeth 37 on the other side are separated from the half gear 321. A first one-way valve is fixedly installed at the bottom of the jacking hole. A second one-way valve is embedded at one end of the piston block 35 facing the bottom of the jacking hole. An air inlet hole is formed on one side outside the piston block 35. An air inlet pipe is connected between the output end of the first one-way valve and the first air collecting box 33.

[0157] By adopting the above technical solution, when the stepping motor rotates counterclockwise, the half gear is continuously driven to rotate counterclockwise by the second driving wheel. Then, in cooperation with the transmission member, the stepping motor can drive the piston block to reciprocate when performing counterclockwise work output, press the external air into the first air collecting box for storage to supply air to the accommodation cavity and the elastic air bag in the first sleeve, and respectively push out the third sleeve and the pressing block without connecting to an external air source, and the use effect is good.

[0158] Embodiment 8:

[0159] This embodiment provides a three-ball decorative knife painting device and method. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0160] The present invention is further configured as: The first rotating shaft 5 further includes:

[0161] An air intake passage, located inside the first rotating shaft 5 and arranged along the length direction of the first rotating shaft 5;

[0162] A first annular groove, opened on the outer side of the first rotating shaft 5, and a plurality of air guide holes are opened at the bottom of the first annular groove;

[0163] A first clamping ring 36 is rotationally and sealingly connected in the first annular groove. A first air guide pipe is connected between the first clamping ring 36 and the first air collecting box 33. An air outlet hole for the air outlet of the air guide pipe is opened inside the first clamping ring 36;

[0164] A first solenoid valve is embedded on the inner wall of the air intake passage, and the outlet end of the first solenoid valve is communicated with the accommodation cavity;

[0165] A second solenoid valve is embedded on the inner wall of the air intake passage, and a second air guide pipe is connected between the outlet end of the second solenoid valve and the elastic air bag 17;

[0166] The outer sides of the first sleeve 8 and the third sleeve 11 are respectively equipped with a third solenoid valve and a fourth solenoid valve for exhaust. The inlet end of the third solenoid valve is connected to the receiving cavity, and the inlet end of the fourth solenoid valve is connected to the inside of the elastic airbag 17. The bottom of the first rotating shaft 5 is equipped with a fifth solenoid valve for connecting the air intake channel and the third sleeve 11. The inner side wall of the first retaining ring 36 and the inner side wall of the first annular groove are also equipped with conductive plates for connecting the solenoid valve to an external power source. The external power line is connected to the conductive plate through the first retaining ring.

[0167] By adopting the above technical solution, the external power cord is connected to the conductive plate through the first retaining ring. Through the cooperation of each retaining ring and the ring groove, the first rotating shaft will not interfere with the air guide pipe and the power cord when rotating. The air intake and exhaust are controlled by each solenoid valve without manual intervention. By setting the fifth solenoid valve, after the painting is completed, the fifth solenoid valve opens, allowing the high-pressure gas in the air intake channel connected to the first air collection box to be discharged through the fifth solenoid valve. This can effectively squeeze the residual paint mist in the third sleeve downward and push it into the collection box through the conveyor belt. With the help of the water mist nozzle to eliminate the paint mist, it can effectively prevent the paint mist from spreading and polluting the working environment.

[0168] Example 9:

[0169] This embodiment provides a three-ball decorative knife spray painting device and method, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0170] Furthermore, the third sleeve 11 also includes:

[0171] Several sets of distance sensors are embedded in the upper part of the first fixed block 121 and are distributed in a circular pattern.

[0172] The second annular groove is located on the outside of the third sleeve 11;

[0173] The second retaining ring 371 is rotatably and sealingly connected within the second ring groove;

[0174] The second retaining ring 371 has an inlet ring groove on its inner side, and the second ring groove has an inlet channel that passes through the first fixing block 121 and communicates with the nozzle 13. An inlet pipe for conveying paint liquid to the inlet channel through the inlet ring groove is fixedly installed on the second retaining ring 371.

[0175] By adopting the above technical solution, the position of the cutter sent to the lower end of the third sleeve can be confirmed by setting up several sets of distance sensors and fed back to the external control system. This makes it easier to control the stepper motor to fine-tune the first rotating shaft so that the spraying component in the third sleeve is aligned with the cutter. This is more convenient and eliminates the need to deliberately adjust the cutter position when loading the cutter onto the conveyor belt.

[0176] A control method for a three-ball decorative knife spray painting device includes the following steps:

[0177] Step 1: Start the stepper motor and make it rotate counterclockwise. The first drive wheel drives the second drive wheel to rotate clockwise, and the fourth drive wheel drives the driven half gear to rotate clockwise synchronously, thereby driving the piston block to reciprocate and intake air, and compressing the external air into the first air collection box for storage.

[0178] Step 2: Insert the tool holder into the limiting hole of the support block and start the conveyor belt;

[0179] Step 3: When the cutter moves to the bottom of the third sleeve, it stops. Then, the position of the cutter is determined by several sets of distance sensors. Then, the stepper motor rotates clockwise to drive the first rotating shaft to rotate so that the spraying assembly is aligned with the cutter and then resumes counterclockwise rotation.

[0180] Step 4: The first solenoid valve is opened to allow the third sleeve to extend and cover the outside of the tool. Then the second solenoid valve expands the elastic airbag and pushes the pressure block to cover the grooves on both sides of the tool.

[0181] Step 5: Spray painting;

[0182] Step 6: Open the fourth and fifth solenoid valves to simultaneously discharge the gas in the elastic airbag and the first gas collection box, squeezing the paint mist in the third sleeve into the collection box. Then, open the third solenoid valve to discharge and reset the gas in the first sleeve.

[0183] By adopting the above technical solution, the surface of the three-ball decorative knife can be effectively painted with the spray output mechanism. This avoids excess paint being sprayed into the chip removal groove, eliminating the need for subsequent cleaning. It is easy to use, requires no manual intervention in painting the surface, and effectively removes excess paint mist generated after spraying, thus preventing pollution of the working environment and achieving good results.

[0184] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A three-ball decorative knife spray painting device, characterized in that, include: Conveyor belt (1); The spraying support frame (2) is located on the outside side of the conveyor belt (1); The spraying output mechanism is located above the conveyor belt (1), and the end of the spraying output mechanism away from the conveyor belt (1) is installed on the spraying support frame (2); Among them, the conveyor belt (1) is used to carry the conveying cutter through the paint spraying mechanism for paint spraying; The spray coating output mechanism includes: The first rotating shaft (5) is vertically arranged, and the upper end of the first rotating shaft (5) is rotatably connected to the spraying support frame (2); Several grooves (6) are circumferentially distributed on the outside of the first rotating shaft (5), and the lower wall of the grooves (6) is open. A fixed collar (7) is fixedly installed on the first rotating shaft (5) and located above the slide groove (6); The first sleeve (8) has a "T" shaped cross section and is sleeved on the first rotating shaft (5). The upper end of the first sleeve (8) is fixedly installed on the lower end of the fixed collar (7). There is a gap between the first sleeve (8) and the first rotating shaft (5). The second sleeve (9) is sleeved on the first rotating shaft (5) and is slidably sealed to the first sleeve (8). A slider (10) is fixedly installed on the inner side of the second sleeve (9) and is slidably sealed to the slide groove (6). The third sleeve (11) is fixedly installed at the lower end of the second sleeve (9); The spraying assembly is located inside the third sleeve (11); Spring (12) is sleeved on the outside of the first sleeve (8); Among them, the upper middle part of the third sleeve (11) is provided with an opening for the first rotating shaft (5) to pass through, and the upper and lower ends of the spring (12) are fixedly connected to the first sleeve (8) and the third sleeve (11) respectively, and a sealed receiving cavity is formed between the first sleeve (8) and the second sleeve (9). The spraying components include: The first fixing block (121) is in the shape of a "door". The left and right sides of the first fixing block (121) are respectively fixedly installed on the inner side walls of the third sleeve (11); Several nozzles (13) are embedded in the inner wall of the first fixing block (121); The second fixing block (14) is provided in two parts. The horizontal height of the upper end face of the second fixing block (14) is lower than the horizontal height of the upper inner wall of the first fixing block (121) on both sides of the two second fixing blocks (14). Slots (15) are provided on opposite sides of the two second fixing blocks (14); A pressure block (16) is located inside a slot (15); An elastic airbag (17) is fixedly installed between the pressure block (16) and the bottom of the slot (15); Among them, the pressing block (16) is triangular prism-shaped.

2. The three-ball decorative knife spray painting device according to claim 1, characterized in that, The conveyor belt (1) includes: Several support blocks (3) are fixedly installed on the conveyor belt (1); A limiting hole (4) is provided on the upper end face of the support block (3) for radially limiting the tool holder of the tool; The collection box is located inside the conveyor belt (1) and is located below the spray output mechanism. One end of the collection box is fixedly installed on the spray support frame. Among them, several support blocks (3) on the conveyor belt (1) are distributed at equal intervals along the length of the conveyor belt (1), and several hollow holes are provided on the surface of the conveyor belt (1). The upper end of the collection box is open, and several water mist nozzles are fixedly installed on the inner edge of the upper end of the collection box. The upper end of the support block (3) is provided with through holes that pass through the support block (3) and the upper end of the conveyor belt (1) in sequence.

3. The three-ball decorative knife spray painting device according to claim 2, characterized in that, The spray painting support frame (2) includes: Support base (18) is located behind the conveyor belt (1); The first support plate (19) is fixedly installed on the upper edge of the support base (18) facing the conveyor belt (1); The second support plate (20) is L-shaped and is detachably fixed to the lower end of the first support plate (19); Among them, the first support plate (19) and the second support plate (20) are respectively provided with drive components for driving the spraying components and the tool alignment.

4. The three-ball decorative knife spray painting device according to claim 3, characterized in that, The driver components include: A stepper motor (201) is fixedly mounted on the upper surface of the first support plate (19); A receiving groove (21) is formed on the lower end face of the first support plate (19); First drive wheel (22); The second drive wheel (23) and the first drive wheel (22) and the second drive wheel (23) are rotatably connected to the bottom of the receiving groove (21). The outer sides of the first drive wheel (22) and the second drive wheel (23) are respectively provided with a first tooth (24) and a second tooth that mesh with each other in the circumferential direction. The first circular groove (25) is formed on the lower end face of the first drive wheel (22); The first claw (26) is hinged to the wall of the first circular groove (25) and there are several of them. The several first claws (26) are evenly distributed along the circumference of the wall of the first circular groove (25). The output shaft of the stepper motor (201) passes through the first support plate (19) and is fixedly connected to the first drive wheel (22). The upper end of the first rotating shaft (5) passes through the second support plate (20), extends into the first circular groove (25), and is fixedly installed with the third drive wheel (261). The outer side of the third drive wheel (261) is integrally formed with the first ratchet (27) corresponding to the first pawl (26).

5. The three-ball decorative knife spray painting device according to claim 4, characterized in that, The driver components also include: The second circular groove (28) is formed on the lower end face of the second drive wheel (23); The second claw (29) is hinged to the wall of the second circular groove (28) and there are several of them. The several second claws (29) are evenly distributed along the circumference of the wall of the second circular groove (28). The second rotating shaft (30) is located below the second circular groove (28), and the lower end of the second rotating shaft (30) is rotatably connected to the second support plate (20); The fourth drive wheel (31) is fixedly installed on the upper end of the second rotating shaft (30) and located in the second circular groove (28). The outer side of the fourth drive wheel (31) is integrally formed with a second ratchet (32) corresponding to the second pawl (29). Half gear (321) is fixedly mounted on the second rotating shaft (30); The first air collecting box (33) is fixedly installed on the upper right side of the second support plate (20) for supplying air to the first sleeve (8) and the elastic airbag (17) respectively; The second air collecting box (34) is fixedly installed on the second support plate (20) and adjacent to the first air collecting box (33). On one side of the second air collecting box (34) facing the second rotating shaft (30), there is a jack. A piston block (35) is slidably and sealingly connected in the jack. At one end of the piston block (35)背离插孔的一端固定安装有与半齿轮(321)相配合带动活塞块(35)在插孔内往复运动的传动件(361); Among them, the cross-section of the transmission member (361) is in the shape of "匚". Third teeth (37) corresponding to the semi-gear (321) are integrally formed on both inner side arms of the transmission member (361). The number of teeth of the third teeth (37) on both inner sides of the transmission member (361) is equal to the number of teeth of the semi-gear (321) respectively. When the semi-gear (321) meshes with the third teeth of one side gear, the third teeth (37) on the other side are separated from the semi-gear (321). A first one-way valve is fixedly installed at the bottom of the jack hole. A second one-way valve is embedded at one end of the piston block (35) facing the bottom of the jack hole. An air inlet hole is opened on one side of the piston block (35). An air inlet pipe is connected between the output end of the first one-way valve and the first air collecting box (33).

6. The three-ball decorative knife painting device according to claim 5, characterized in that The first rotating shaft (5) further includes: An air inlet passage, located inside the first rotating shaft (5) and arranged along the length direction of the first rotating shaft (5); A first annular groove is opened on the outer side of the first rotating shaft (5). A plurality of air guide holes are opened at the bottom of the first annular groove; A first clamping ring (36) is rotatably and sealingly connected in the first annular groove. A first air guide pipe is connected between the first clamping ring (36) and the first air collecting box (33). An air outlet hole for the air guide pipe to discharge air is opened on the inner side of the first clamping ring (36); A first solenoid valve is embedded on the inner wall of the air inlet passage. The outlet end of the first solenoid valve is communicated with the accommodating cavity; A second solenoid valve is embedded on the inner wall of the air inlet passage. A second air guide pipe is connected between the outlet end of the second solenoid valve and the elastic airbag (17); Among them, third solenoid valves and fourth solenoid valves for exhausting are respectively embedded on the outer sides of the first sleeve (8) and the third sleeve (11). The inlet end of the third solenoid valve is communicated with the accommodating cavity. The inlet end of the fourth solenoid valve is communicated with the inside of the elastic airbag (17). A fifth solenoid valve for connecting the air inlet passage and the third sleeve (11) is embedded at the bottom of the first rotating shaft (5). Conductive sheets for connecting the solenoid valves to an external power source are also embedded on the inner side wall of the first clamping ring (36) and the inner side wall of the first annular groove.

7. The three-ball decorative knife painting device according to claim 6, characterized in that The third sleeve (11) further includes: A plurality of groups of distance sensors are embedded in the upper end of the first fixing block (121) and distributed in a circumferential manner; A second annular groove is opened on the outer side of the third sleeve (11); A second clamping ring (371) is rotatably and sealingly connected in the second annular groove; The second retaining ring (371) has an inlet ring groove on its inner side. The second ring groove has an inlet channel that passes through the first fixing block (121) and communicates with the nozzle (13). The second retaining ring (371) is fixedly installed with an inlet pipe for conveying paint liquid to the inlet channel through the inlet ring groove.

8. A control method for the three-ball decorative knife spray painting device as described in claim 7, characterized in that, Includes the following steps: Step 1: Start the stepper motor and make it rotate counterclockwise. The first drive wheel drives the second drive wheel to rotate clockwise, and the fourth drive wheel drives the driven half gear to rotate clockwise synchronously, thereby driving the piston block to reciprocate and intake air, and compressing the external air into the first air collection box for storage. Step 2: Insert the tool holder into the limiting hole of the support block and start the conveyor belt; Step 3: When the cutter moves to the bottom of the third sleeve, it stops. Then, the position of the cutter is determined by several sets of distance sensors. Then, the stepper motor rotates clockwise to drive the first rotating shaft to rotate so that the spraying assembly is aligned with the cutter and then resumes counterclockwise rotation. Step 4: The first solenoid valve is opened to allow the third sleeve to extend and cover the outside of the tool. Then the second solenoid valve expands the elastic airbag and pushes the pressure block to cover the grooves on both sides of the tool. Step 5: Spray painting; Step 6: Open the fourth and fifth solenoid valves to simultaneously discharge the gas in the elastic airbag and the first gas collection box, squeezing the paint mist in the third sleeve into the collection box. Then, open the third solenoid valve to discharge and reset the gas in the first sleeve.

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