Grinding device for ink printing pigment particles

Abstract

The grinding device for the ink printing pigment particles comprises a machine shell, cavities are formed in the left side wall and the right side wall of the machine shell, a middle roller is rotationally connected to the machine shell, a front movable block and a rear movable block are arranged in each cavity in a sliding mode, and an outer side roller is rotationally connected between the two left-right corresponding movable blocks; the left side and the right side of the machine shell are each provided with a front adjusting piece and a rear adjusting piece so as to adjust the distance between the outer side roller and the middle roller, and a material returning mechanism is arranged on the machine shell. The scraper is driven by the guide plate to rotate to be in contact with the front-side outer roller, pigment with the fineness not meeting the requirement on the front-side outer roller can be scraped off, the pigment with the fineness not meeting the requirement is guided back to the position between the middle roller and the outer roller through the guide plate to be ground again, the speed of pigment backflow is high, and efficiency is high; and the risk of mixing the pigment meeting the requirement and the pigment not meeting the requirement after grinding is reduced, so that the risk that the performance and the printing quality of the ink are influenced by excessive grinding of the pigment meeting the grinding degree is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and in particular to a grinding device for ink printing pigment particles. Background Art

[0002] Grinding pigment particles is a key step in ink production, which can significantly improve the quality of ink and printing effect. At present, three-roller grinders are generally used to grind ink printing pigment particles. The pigment particles are ground to the required fineness by the shear force and extrusion of three horizontally arranged rollers on the three-roller grinder. Although the existing three-roller grinder can grind the pigment particles to the required fineness, it still has the following defects in actual use: After the ground pigment is scraped off from the outer roller, it is necessary to check whether the pigment grinding degree meets the requirements. If it is found that it does not meet the requirements, the distance between the outer roller and the middle roller is adjusted again, and the pigment that does not meet the requirements after grinding is manually shoveled up and returned to the middle roller and the outer roller for re-grinding. This manual operation is not only slow and inefficient, but also easily causes the pigment that meets the requirements after grinding to mix with the pigment that does not meet the requirements, thereby causing the pigment that meets the requirements to be over-grinded, affecting the performance of the ink and the printing quality. Summary of the invention

[0003] The object of the present invention is to provide a grinding device for ink printing pigment particles, which is intended to guide the pigments whose grinding degree does not meet the requirements back to between the middle roller and the outer roller for further grinding.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding device for ink printing pigment particles, comprising a casing, chambers are opened on the left and right side walls of the casing, an intermediate roller is rotatably connected to the casing, two front and rear movable blocks are slidably arranged in the two chambers, outer rollers are rotatably connected between the two corresponding movable blocks on the left and right, the outer roller on the front side is higher than the middle roller, a hopper is installed on the rear side of the top of the casing, and two front and rear adjustment members are arranged on the left and right sides of the casing to adjust the distance between the outer roller and the middle roller, and a material return mechanism is arranged on the casing, and the material return mechanism includes two connecting plates respectively connected to the rear sides of the two front movable blocks, and two connecting plates are respectively connected to the rear sides of the two front movable blocks. A rotating shaft is rotatably connected between the plates, and the rotating shaft and the casing are slidably matched. A guide plate is connected to the rotating shaft, and the guide plate is located on the upper side of the middle roller and on the rear side of the front outer roller. A scraper is connected to the front side of the guide plate, and a feed port for pigment to enter is opened on the bottom front side of the guide plate. A locking piece is provided on the right outer wall of the casing for limiting the rotation of the rotating shaft. The front sides of the two front movable blocks are connected to connecting plates. A scraper frame is rotatably connected between the two connecting plates for scraping off the pigment on the front outer roller. A locking piece is provided on the right outer wall of the casing for limiting the rotation of the scraper frame. A driving mechanism for driving the middle roller and the outer roller to rotate is provided in the casing.

[0005] Preferably, a cleaning and maintenance mechanism is provided in the casing for cleaning and maintaining the middle roller and the outer rollers, the cleaning and maintenance mechanism comprises a movable plate slidably connected to the casing through a guide rod, an electric push rod 1 is installed on the movable plate, an arc-shaped material storage frame is connected to the telescopic rod of the electric push rod 1, the material storage frame is located at the lower side of the middle roller and the outer roller, a brush located at the lower side of the middle roller and the rear outer roller is slidably provided on the rear side of the material storage frame, a silicone plate is embedded on the rear side of the bottom of the material storage frame, the top of the silicone plate is connected to the bottom of the brush, an electric push rod 2 is installed on the rear side of the bottom of the material storage frame, the telescopic rod of the electric push rod 2 is connected to the bottom of the brush, three short scrapers are arranged at intervals from front to back in the material storage frame, the three short scrapers are contacted with the middle roller and the outer roller The side rollers correspond one to one, the front end short scraper is fixedly connected to the storage frame, the middle and rear end short scrapers are hinged on the brush, the middle and rear end short scrapers are rotatably connected to the sliding rod on the side away from each other, and the storage frame is connected with a guide rail for guiding the sliding rod to move forward and backward. Three iron support plates are connected at intervals from front to back on the right side outer wall of the storage frame for placing cleaning cloth, and the three iron support plates correspond one to the middle roller and the outer roller, and the iron support plates slide in cooperation with the right side wall of the casing, and the inner bottom of the iron support plates are magnetically attracted with two front and rear magnets for pressing and fixing the cleaning cloth. A driving member for driving the movable plate to reciprocate left and right is provided in the casing, and an opening is provided on the left inner wall of the casing for the storage frame to enter the left chamber.

[0006] Preferably, the scraper frame includes a rotating shaft rotatably connected between two connecting plates, the rotating shaft is slidably matched with the casing, and the rotating shaft is connected to a material guide plate located in front of the front outer roller. A groove is opened on the rear side of the inner bottom of the material guide plate, and a long scraper is installed in the groove. The top of the long scraper is flush with the inner bottom of the material guide plate.

[0007] Preferably, locking member 2 includes a slide plate slidably arranged on the right side outer wall of the casing, the slide plate is rotatably connected to the right side of the rotating shaft, and two upper and lower limit rods are fixedly connected to the right side outer wall of the casing. The two limit rods are respectively located on the upper and lower sides of the slide plate and contact with the slide plate to limit the rotation of the slide plate. An internal threaded sleeve is connected to the right side of the slide plate, and the internal threaded sleeve is connected to an external threaded sleeve with an internal thread. A diamond groove is opened in the external threaded sleeve, and a diamond rod matching the diamond groove is connected to the right end of the rotating shaft. The structure of locking member 1 is the same as that of locking member 2.

[0008] Preferably, an adjustment plate that can move forward and backward is provided at the lower part of the hopper, and the adjustment plate is used to adjust the amount of material fed into the hopper.

[0009] Preferably, the driving member includes a screw rod rotatably connected to the housing, the screw rod is threadedly connected to the movable plate, a servo motor is installed in the left chamber, and the output shaft of the servo motor is connected to the screw rod.

[0010] Preferably, the adjusting member comprises a screw rod rotatably connected to the housing, a nut is threadedly connected to the screw rod, and the nut is fixedly connected to a movable block directly below the screw rod.

[0011] Preferably, the driving mechanism includes two front and rear driving motors installed on the left side of the bottom inner side of the casing, the output shaft of the front driving motor is connected to the outer roller on the front side through a belt transmission component 1, and three tensioning wheels are rotatably connected from back to front in the chamber on the left side, the middle tensioning wheel is located on the inner side of the belt of the belt transmission component 1, and the tensioning wheels on the front and rear sides are located on the outer side of the belt of the belt transmission component 1, the output shaft of the rear driving motor is connected to the middle roller through a belt transmission component 2, the left sides of the middle roller and the rear outer roller are connected to face gears, and a spur gear is rotatably connected in the chamber on the left side, and the spur gear is located on the left side of the face gear and meshes with the face gear.

[0012] Preferably, lifting rods are slidably connected to the inner walls of the left and right sides of the casing through sliding sleeves, and the bottom ends of the two lifting rods are connected to material guide blocks. The material guide blocks are located between the middle roller and the rear outer roller, and are used to guide the pigment between the middle roller and the rear outer roller. The lower parts of the front and rear sides of the material guide blocks are both arc-shaped, and the front and rear side surfaces of the material guide blocks are both inclined.

[0013] Preferably, both the middle roller and the outer roller are built with electric heating elements and temperature sensors.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The guide plate drives the scraper to rotate and contact the front outer roller, so that the pigment on the front outer roller that does not meet the fineness requirements can be scraped off, and the pigment that does not meet the fineness requirements can be guided back to the middle roller and the outer roller for re-grinding through the guide plate. The speed of the reflux pigment is fast and efficient, which reduces the risk of mixing the pigment that meets the requirements with the pigment that does not meet the requirements after grinding, thereby reducing the risk of over-grinding of the pigment that meets the requirements and affecting the performance of the ink and the printing quality; in addition, there is no need to manually shovel the pigment that does not meet the requirements after grinding and return it between the middle roller and the outer roller, which improves work efficiency and reduces the labor intensity of workers.

[0015] 2. Through the setting of the cleaning and maintenance mechanism, the middle roller and the outer roller can be automatically cleaned and oiled, and the grease can be automatically scraped off. There is no need for manual cleaning and oiling and grease scraping operations. The work efficiency is further improved, the labor intensity of the workers is further reduced, and the risk of accidents is reduced to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2It is a schematic diagram of the connection between the hopper and the adjustment plate of the present invention.

[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0019] Figure 4 It is a schematic diagram of the installation of the material return mechanism of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the material return mechanism of the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the scraper frame and the second locking member of the present invention.

[0022] Figure 7 It is a cross-sectional view of the second locking member of the present invention.

[0023] Figure 8 The three-dimensional structure diagram of the driving mechanism of the present invention is shown in FIG. Figure 1 .

[0024] Fig. 9 The three-dimensional structure diagram of the driving mechanism of the present invention is shown in FIG. Figure 2 .

[0025] Fig.10 It is a schematic diagram of the installation of the cleaning and maintenance mechanism of the present invention.

[0026] Fig.11 The three-dimensional structure of the cleaning and maintenance mechanism of the present invention is shown in FIG. Figure 1 .

[0027] Fig.12 The three-dimensional structure of the cleaning and maintenance mechanism of the present invention is shown in FIG. Figure 2 .

[0028] Fig.13 It is a partial three-dimensional structural schematic diagram of the cleaning and maintenance mechanism of the present invention.

[0029] Fig.14 It is a schematic diagram of the connection between the iron support plate and the magnet of the present invention.

[0030] In the figure: 1- housing, 11- chamber, 12- opening and closing door, 13- cover plate, 14- slide rail, 15- limit rod, 16- opening, 2- middle roller, 3- outer roller, 4- movable block, 5- hopper, 51- adjusting plate, 6- adjusting member, 61- screw rod, 62- nut, 71- connecting plate, 72- rotating shaft, 73- guide plate, 74- feeding port, 75- scraper, 76- locking member 1, 8- connecting plate, 9- scraper frame, 91- rotating shaft, 92- guide plate, 93- long scraper, 10- locking member 2, 101- slide plate, 102- internal thread sleeve, 103- external thread sleeve, 104- rhombus shaped rod, 105-diamond groove, 121-driving motor, 122-belt transmission component 1, 123-tensioning wheel, 124-belt transmission component 2, 125-face gear, 126-spur gear, 130-guide rod, 131-movable plate, 132-electric push rod 1, 133-material storage frame, 134-electric push rod 2, 135-brush, 136-silica gel plate, 137-short scraper, 138-guide rail, 139-slide rod, 1310-iron support plate, 1311-magnet, 1312-screw rod, 1313-servo motor, 141-sleeve, 142-lifting rod, 143-guide block. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] A grinding device for ink printing pigment particles, see Figure 1-Figure 9, including a casing 1, chambers 11 are opened on the left and right side walls of the casing 1, a cover plate 13 that can be rotated and opened forward and upward is hinged on the top front side of the casing 1, an intermediate roller 2 is rotatably connected to the casing 1, two front and rear slide rails 14 are connected to the two chambers 11, and movable blocks 4 are slidably connected to the four slide rails 14, and outer rollers 3 are rotatably connected between the two corresponding movable blocks 4 on the left and right, and the front and rear outer rollers 3 are respectively located on the front and rear sides of the intermediate roller 2, and the front outer roller 3 is higher than the intermediate roller 2, and the intermediate roller 2 and the outer roller 3 are both built-in with electric heating elements and temperature sensors, and the built-in electric heating elements and temperature sensors can provide Provide a constant temperature to ensure the fluidity and dispersibility of the pigment and avoid the solidification of the pigment, thereby improving the grinding effect. A hopper 5 is embedded on the top rear side of the casing 1. The hopper 5 is used to put the pigment between the middle roller 2 and the outer roller 3 on the rear side. An adjustment plate 51 that can move forward and backward is slidably provided at the lower part of the hopper 5. The adjustment plate 51 is used to adjust the amount of material added to the hopper 5. Two front and rear adjustment members 6 are provided on the left and right sides of the casing 1. The four adjustment members 6 are respectively connected to the four movable blocks 4 to adjust the distance between the outer roller 3 and the middle roller 2. The adjustment member 6 includes a screw 61 rotatably connected to the casing 1. A nut 62 is threadedly connected to the screw 61. The nut 62 is fixedly connected On the movable block 4 directly below it, the front side surfaces of the two movable blocks 4 on the front side are connected with connecting plates 8, and a scraper frame 9 is rotatably connected between the two connecting plates 8 for scraping off the pigment on the front outer roller 3. A locking member 2 10 is provided on the right outer wall of the casing 1 for limiting the rotation of the scraper frame 9. The scraper frame 9 includes a rotating shaft 91 rotatably connected between the two connecting plates 8, and the rotating shaft 91 is slidably matched with the casing 1. A guide plate 92 located in front of the front outer roller 3 is connected to the rotating shaft 91. A groove is provided on the rear side of the inner bottom of the guide plate 92, and a long scraper 93 is installed in the groove. The top of the long scraper 93 is flush with the inner bottom of the guide plate 92. The locking member 2 10 includes a sliding setting The slide plate 101 on the right side outer wall of the casing 1 is rotatably connected to the right side of the rotating shaft 91. An upper and lower limit rods 15 are fixedly connected to the right side outer wall of the casing 1. The two limit rods 15 are respectively located on the upper and lower sides of the slide plate 101 and contact the slide plate 101 to limit the rotation of the slide plate 101. An internal threaded sleeve 102 is connected to the right side of the slide plate 101. The internal threaded sleeve 102 is internally threaded with an external threaded sleeve 103. A diamond groove 105 is opened in the external threaded sleeve 103. A diamond rod 104 matching the diamond groove 105 is connected to the right end of the rotating shaft 91. A material return mechanism is provided on the casing 1. A driving mechanism for driving the middle roller 2 and the outer roller 3 to rotate is provided in the casing 1.

[0033] In a preferred embodiment, see Figure 3-Figure 7The material return mechanism includes two connecting plates 71 respectively connected to the rear sides of the two front movable blocks 4, a rotating shaft 72 is rotatably connected between the two connecting plates 71, the rotating shaft 72 is slidably matched with the casing 1, a guide plate 73 is connected to the rotating shaft 72, the guide plate 73 is located on the upper side of the middle roller 2 and on the rear side of the front outer roller 3, a scraper 75 is connected to the front side of the guide plate 73 for scraping off the pigment on the front outer roller 3, a feed port 74 for pigment entry is opened on the bottom front side of the guide plate 73, a locking piece 76 is provided on the right outer wall of the casing 1 for limiting the rotation of the rotating shaft 72, the structure of the locking piece 76 is the same as that of the locking piece 10, the slide plate 101 on the locking piece 76 is rotatably connected to the right side of the rotating shaft 72, and the diamond rod 104 on the locking piece 76 is connected to the right end of the rotating shaft 72.

[0034] In a preferred embodiment, see Figure 8 and Fig. 9 The driving mechanism includes two front and rear driving motors 121 installed on the left side of the bottom inner side of the casing 1. The output shaft of the front driving motor 121 is connected to the outer roller 3 on the front side through a belt transmission component 122. The belt transmission component 122 consists of two pulleys and a belt, one of which is connected to the output shaft of the front driving motor 121, and the other is connected to the left side of the outer roller 3 on the front side. The belt is sleeved between the two pulleys. Three tensioning wheels 123 are connected to the left side of the chamber 11 from back to front in an interval rotation manner. The middle tensioning wheel 123 is located on the inner side of the belt of the belt transmission component 122, and the tensioning wheels 123 on the front and rear sides are located on the belt transmission component 11. On the outside of the belt 22, the position of the middle tensioning wheel 123 is higher than the tensioning wheels 123 on the front and rear sides. Through the cooperation of the three tensioning wheels 123, it can be ensured that when the front outer roller 3 is adjusted in the front and rear position, the belt of the belt transmission component 122 is always kept in a taut state. The output shaft of the rear drive motor 121 is connected to the middle roller 2 through the belt transmission component 2 124. The structure of the belt transmission component 2 124 is the same as that of the belt transmission component 1 122. The left sides of the middle roller 2 and the rear outer roller 3 are connected to the face gear 125. The left side of the chamber 11 is rotatably connected to a spur gear 126. The spur gear 126 is located on the left side of the face gear 125 and meshes with the face gear 125.

[0035] Before the pigment grinding operation is performed, the screw 61 is first rotated to drive the nut 62 to drive the movable block 4 to move toward or away from the middle roller 2, thereby adjusting the position of the outer roller 3 in the front-to-back direction, adjusting the spacing between the outer roller 3 and the middle roller 2, and then grinding the pigment to the required fineness. The front movable block 4 moves to drive the connecting plate 71 and the connecting plate 8 to move, thereby driving the long scraper 93 and the scraper 75 to move synchronously, ensuring that the relative position between the long scraper 93 and the front outer roller 3, and the relative position between the scraper 75 and the front outer roller 3 remain stable. Then the driving motor 121 is controlled to work, the front driving motor 121 works to drive the front outer roller 3 to rotate through the belt transmission component 1 122, the rear driving motor 121 works to drive the middle roller 2 to rotate through the belt transmission component 2 124, and the middle roller 2 rotates to drive the rear outer roller 3 through the meshing action of the face gear 125 and the spur gear 126, and the outer roller 3 and the middle roller 2 rotate in opposite directions. Then pour the pigment into the hopper 5, and put the pigment between the middle roller 2 and the rear outer roller 3 through the hopper 5. Move the adjustment plate 51 forward to reduce the feeding amount of the hopper 5, and move the adjustment plate 51 backward to increase the feeding amount of the hopper 5, so as to ensure that the feeding amount of the hopper 5 is suitable, and avoid the feeding amount of the hopper 5 being too large to affect the grinding effect. The outer roller 3 and the middle roller 2 rotate in opposite directions, which can not only grind the pigment, but also transport the ground pigment forward. Then, manually check whether the fineness of the pigment after grinding by the middle roller 2 and the front outer roller 3 meets the requirements. If the fineness of the pigment meets the requirements, the long scraper 93 directly scrapes the pigment on the front outer roller 3 that meets the requirements, and the pigment that meets the requirements is then discharged forward and downward along the guide plate 92. A collection container is placed under the guide plate 92 to collect the pigment that meets the requirements. If the fineness of the pigment does not meet the requirements, the outer thread sleeve 103 on the second locking member 10 is rotated, thereby driving the diamond rod 104 inside it to rotate through the diamond groove 105 thereon, and then driving the rotating shaft 91 to rotate. The rotating shaft 91 rotates through the material guide plate 92 to drive the long scraper 93 to rotate forward and upward to disengage from the front outer roller 3, so as to prevent the long scraper 93 from scraping off the pigment on the front outer roller 3 that does not meet the requirements of fineness. When the outer thread sleeve 103 on the second locking member 10 rotates, it moves to the left in threaded cooperation with the inner thread sleeve 102 thereon, and the inner and outer thread sleeves 103 can be locked through the inner thread sleeve 102 on the second locking member 10, thereby locking the diamond rod 104 on the second locking member 10, and then locking the rotating shaft 91 to prevent the rotating shaft 91 from rotating by itself, so as to ensure the stable position of the material guide plate 92 and the long scraper 93.While rotating the external thread sleeve 103 on the locking member 10, the external thread sleeve 103 on the locking member 1 76 is also rotated, thereby driving the rotating shaft 72 to rotate. The rotating shaft 72 rotates through the guide plate 73 to drive the scraper 75 to rotate forward and upward to contact the front outer roller 3, so as to scrape off the pigment on the front outer roller 3 that does not meet the requirements in fineness. The pigment scraped off then enters the guide plate 73 through the feed port 74, and then flows back along the guide plate 73 to the middle roller 2 and the rear outer roller 3 for re-grinding. The rotating shaft 72 can be locked by the cooperation of the internal thread sleeve 102, the external thread sleeve 103 and the diamond rod 104 on the locking member 1 76 to ensure the stable position of the guide plate 73 and the scraper 75. When the pigment that does not meet the requirements in fineness is guided back between the middle roller 2 and the rear outer roller 3, the distance between the outer roller 3 and the middle roller 2 is adjusted again to ensure that the pigment fineness subsequently ground meets the requirements. When the pigment fineness meets the requirements after being ground by the middle roller 2 and the front outer roller 3, the external threaded sleeve 103 on the locking piece 2 10 and the external threaded sleeve 103 on the locking piece 1 76 are immediately reversed, so that the rotating shaft 72 is reversed, so as to drive the scraper 75 to rotate backward and downward through the guide plate 73 to disengage from the front outer roller 3, thereby avoiding scraping off the pigment on the front outer roller 3 with the required fineness, and the rotating shaft 91 is reversed, so as to drive the long scraper 93 to rotate backward and downward through the guide plate 92 to contact the front outer roller 3, thereby scraping off the pigment on the front outer roller 3 with the required fineness. In this way, the device drives the scraper 75 to rotate and contact the front outer roller 3 through the guide plate 73, so that the pigment on the front outer roller 3 that does not meet the requirements of fineness can be scraped off, and the pigment that does not meet the requirements of fineness can be guided back to the middle roller 2 and the outer roller 3 for re-grinding through the guide plate 73. The speed of the reflux pigment is fast and efficient, which reduces the risk of mixing the pigment that meets the requirements with the pigment that does not meet the requirements after grinding, thereby reducing the risk of excessive grinding of the pigment that meets the requirements affecting the performance of the ink and the printing quality; in addition, there is no need to manually shovel the pigment that does not meet the requirements after grinding and return it between the middle roller 2 and the outer roller 3, which improves work efficiency and reduces the labor intensity of workers. Since the long scraper 93 is installed in the groove at the inner bottom of the guide plate 92, the top of the long scraper 93 is flush with the inner bottom of the guide plate 92, so there is no gap between the long scraper 93 and the guide plate 92, so as to ensure that the pigment slides forward and downward along the long scraper 93 and the guide plate 92 smoothly to avoid material jamming.

[0036] The middle roller 2 and the outer roller 3 need to be cleaned and oiled after use to maintain the middle roller 2 and the outer roller 3. The grease on the middle roller 2 and the outer roller 3 needs to be scraped off before they are used again. At present, the cleaning and oiling and grease scraping operations are generally performed manually. This manual operation is not only slow and inefficient, but also prone to accidents and low safety. In order to solve the above problems, in a preferred embodiment, see Figure 9-14 A cleaning and maintenance mechanism is provided in the casing 1 for cleaning and maintaining the middle roller 2 and the outer roller 3. The cleaning and maintenance mechanism includes a guide rod 130 connected to the casing 1. The left and right ends of the guide rod 130 extend into the left and right chambers 11 respectively. A movable plate 131 is slidably connected to the guide rod 130. An electric push rod 132 is installed on the movable plate 131. An arc-shaped material storage frame 133 is connected to the telescopic rod of the electric push rod 132. The material storage frame 133 is located at the lower side of the middle roller 2 and the outer roller 3. A brush 135 located at the lower side of the middle roller 2 and the rear outer roller 3 is slidably provided on the rear side of the material storage frame 133. A silicone plate 136 is embedded on the rear side of the bottom of the material storage frame 133. The silicone The top of the rubber plate 136 is connected to the bottom of the brush 135, and an electric push rod 134 is installed on the rear side of the bottom of the storage frame 133. The telescopic rod of the electric push rod 134 is connected to the bottom of the brush 135. Three short scrapers 137 are arranged from front to back in the storage frame 133. The shape of the short scrapers 137 is L-shaped. The three short scrapers 137 correspond to the middle roller 2 and the outer roller 3 one by one. The frontmost short scraper 137 is fixedly connected to the storage frame 133, and the middle and rear short scrapers 137 are hinged on the brush 135. The sides of the middle and rear short scrapers 137 away from each other are rotatably connected with a slide bar 139. The storage frame 133 is connected with two sets of front and rear guide rails 1 38, the number of each set of guide rails 138 is two, and the two guide rails 138 in each set are symmetrically arranged on the left and right. The two slide bars 139 are respectively slidably connected in the two sets of guide rails 138, and the guide rails 138 are used to guide the slide bars 139 to move forward and backward. Three iron support plates 1310 are connected to the right outer wall of the storage frame 133 from front to back at intervals, which are used to place the cleaning cloth. The three iron support plates 1310 correspond to the middle roller 2 and the outer roller 3 one by one. The iron support plates 1310 are slidably matched with the right wall of the casing 1. The shape of the iron support plate 1310 is T-shaped, and the inner bottom of the T-shaped iron support plate 1310 is magnetically attracted with two front and rear magnets 1311 for pressing and fixing the cleaning cloth. The casing 1 is provided with There is a driving member for driving the movable plate 131 to move back and forth left and right, and the driving member includes a screw rod 1312 rotatably connected to the casing 1, the screw rod 1312 is located below the middle roller 2, and the screw rod 1312 is threadedly connected to the movable plate 131. A servo motor 1313 is installed in the left chamber 11, and the output shaft of the servo motor 1313 is connected to the screw rod 1312. An opening 16 is provided on the left inner wall of the casing 1 for the storage frame 133 to enter the left chamber 11. Three opening and closing doors 12 are hinged from front to back on the right inner wall of the casing 1. The three opening and closing doors 12 correspond to the three iron support plates 1310 one by one. The setting of the opening and closing doors 12 facilitates the replacement of the cleaning cloth.

[0037] Remove the magnet 1311 from the iron support plate 1310, then place the cleaning cloth on the iron support plate 1310, and bend the front and back sides of the cleaning cloth downward to fit the inner top of the T-shaped iron support plate 1310, then re-place the magnet 1311 on the inner top of the iron support plate 1310, and the magnetic force of the magnet 1311 can adsorb and fix it on the iron support plate 1310, thereby pressing and fixing the cleaning cloth on the iron support plate 1310, and then place the solid paste grease (grease) on the brush 135. The brush 135 is a silicone brush with coarse bristles, which can stably support the solid paste grease (grease), ensuring that the solid paste grease (grease) is subsequently applied between the middle roller 2 and the outer roller 3. Initially, the material storage frame 133 and the iron support plate 1310 are stored in the left chamber 11. After the pigment grinding is completed, the electric push rod 132 is controlled to drive the material storage frame 133 to drive the iron support plate 1310 to move upward, so that the cleaning cloths on the three iron support plates 1310 are respectively in contact with the middle roller 2 and the outer roller 3. Then control the electric push rod 134 to drive the brush 135 to move upward, so that the grease on the brush 135 moves upward and contacts the middle roller 2 and the outer roller 3 on the rear side. When the brush 135 moves upward, it is limited by the guide rail 138 and the slide bar 139 to pull the two short scrapers 137 connected to the brush 135 to swing downward, so that the tops of the two short scrapers 137 connected to the brush 135 are lower than the top of the iron support plate 1310, so as to avoid the two short scrapers 137 connected to the brush 135 from scraping off the grease on the middle roller 2 and the outer roller 3 on the rear side when they move to the right subsequently, and the slide bar 139 slides in the guide rail 138 accordingly. Then, the servo motor 1313 is controlled to drive the screw rod 1312 to rotate, so as to drive the movable plate 131 to move rightward. The movable plate 131 moves rightward and drives the material storage frame 133 to move rightward through the electric push rod 132. When the material storage frame 133 moves rightward, the cleaning cloth on the iron support plate 1310 first contacts the middle roller 2 and the outer roller 3 to clean the residual pigment on the middle roller 2 and the outer roller 3. At this time, the middle roller 2 and the outer roller 3 continue to rotate to ensure that the middle roller 2 and the outer roller 3 are fully cleaned. When the brush 135 moves rightward with the material storage frame 133, the grease on it is applied to the cleaned area of ​​the middle roller 2 and the rear outer roller 3. The middle roller 2 rotates and can transfer the grease on it to the front outer roller 3.When the iron support plate 1310 moves to the right into the right chamber 11, the cleaning cloth on the iron support plate 1310 can be replaced. When pigment grinding is required, the drive motor 121 is first controlled to work so that the middle roller 2 and the outer roller 3 rotate, and then the electric push rod 134 is controlled to drive the brush 135 to move downward, so that the grease on the brush 135 moves downward and separates from the middle roller 2 and the outer roller 3 on the rear side. When the brush 135 moves downward, the two short scrapers 137 connected to the brush 135 are limited by the guide rail 138 and the slide bar 139 to swing upward and reset, so that the tops of the two short scrapers 137 connected to the brush 135 are higher than the top of the iron support plate 1310, so that the three short scrapers 137 are respectively in contact with the middle roller 2 and the outer roller 3. Then the servo motor 1313 is controlled to drive the screw rod 1312 to reverse, so as to drive the movable plate 131 to move to the left, thereby driving the material storage frame 133 to move to the left. When the material storage frame 133 moves to the left, the short scraper 137 first contacts the middle roller 2 and the outer roller 3 to scrape off the grease on the middle roller 2 and the outer roller 3. The scraped grease falls into the material storage frame 133 for collection, and the grease can be blocked by the silicone plate 136 to prevent the grease from sliding into the lower side of the brush 135. When the iron support plate 1310 moves to the left following the material storage frame 133, the residual grease on the middle roller 2 and the outer roller 3 is cleaned by the cleaning cloth on the iron support plate 1310. In this way, the device can automatically clean and oil the middle roller 2 and the outer roller 3, and automatically scrape off the grease, without manual cleaning and oiling and grease scraping operations, and the work efficiency is further improved, the labor intensity of the workers is further reduced, and the risk of accidents is reduced to improve safety.

[0038] In a preferred embodiment, see Figure 3 and Figure 8 Slide sleeves 141 are connected to the inner walls of the left and right sides of the casing 1, and lifting rods 142 are slidably connected in the two slide sleeves 141. The bottom ends of the two lifting rods 142 are connected to guide blocks 143, which are located between the middle roller 2 and the rear outer roller 3, and are used to guide the pigment between the middle roller 2 and the rear outer roller 3. The lower parts of the front and rear sides of the guide block 143 are both arc-shaped, which can better fit with the middle roller 2 and the rear outer roller 3. The front and rear side surfaces of the guide block 143 are both inclined, so as to guide the pigment more smoothly between the middle roller 2 and the rear outer roller 3.

[0039] The guide block 143 can smoothly guide the pigment dropped from the hopper 5 into between the middle roller 2 and the rear outer roller 3, and effectively block the pigment to prevent it from overflowing from the left and right ends of the middle roller 2 and the rear outer roller 3, thereby reducing pigment waste and ensuring that all pigments can be effectively ground.

[0040] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A grinding device for ink printing pigment particles, comprising a housing (1), a chamber (11) being provided on both left and right side walls of the housing (1), an intermediate roller (2) being rotatably connected to the housing (1), two front and rear movable blocks (4) being slidably provided in both chambers (11), an outer roller (3) being rotatably connected between the two corresponding movable blocks (4) on the left and right, characterized in that: The outer roller (3) on the front side is located higher than the middle roller (2). A hopper (5) is installed on the rear side of the top of the casing (1). Two front and rear adjustment members (6) are provided on the left and right sides of the casing (1) to adjust the distance between the outer roller (3) and the middle roller (2). The casing (1) is provided with a material return mechanism, which includes two connecting plates (71) respectively connected to the rear sides of the two movable blocks (4) on the front side. A rotating shaft (72) is rotatably connected between the two connecting plates (71). The rotating shaft (72) is slidably matched with the casing (1). A guide plate (73) is connected to the rotating shaft (72). The guide plate (73) is located on the upper side of the middle roller (2) and on the outer roller ( The casing (1) is provided with a first locking member (76) on the right outer wall of the casing (1) for limiting the rotation of the rotating shaft (72); the front sides of the two movable blocks (4) on the front side are connected to a connecting plate (8); a scraper frame (9) is rotatably connected between the two connecting plates (8) for scraping off the pigment on the front outer roller (3); a second locking member (10) is provided on the right outer wall of the casing (1) for limiting the rotation of the scraper frame (9); and a driving mechanism for driving the intermediate roller (2) and the outer roller (3) to rotate is provided in the casing (1).

2. The grinding device for ink printing pigment particles according to claim 1, characterized in that: A cleaning and maintenance mechanism is provided in the housing (1) for cleaning and maintaining the middle roller (2) and the outer roller (3). The cleaning and maintenance mechanism comprises a movable plate (131) slidably connected to the housing (1) via a guide rod (130). An electric push rod (132) is mounted on the movable plate (131). An arc-shaped material storage frame (133) is connected to the telescopic rod of the electric push rod (132). The material storage frame (133) is located at the lower side of the middle roller (2) and the outer roller (3). A material storage frame (133) is provided at the rear side of the middle roller (2) and the outer roller (3). The material storage frame (133) is provided with a brush (135) on the lower side of the roller (2) and the rear outer roller (3); a silicone plate (136) is embedded on the rear side of the bottom of the material storage frame (133); the top of the silicone plate (136) is connected to the bottom of the brush (135); an electric push rod (134) is installed on the rear side of the bottom of the material storage frame (133); the telescopic rod of the electric push rod (134) is connected to the bottom of the brush (135); three short scrapers (137) are arranged in the material storage frame (133) from front to back; the three short scrapers (137) are connected to the middle roller ( 2) and the outer roller (3) correspond one to one, the frontmost short scraper (137) is fixedly connected to the storage frame (133), the middle and rear short scrapers (137) are hinged on the brush (135), the middle and rear short scrapers (137) are rotatably connected to the sides away from each other with a slide bar (139), the storage frame (133) is connected with a guide rail (138) for guiding the slide bar (139) to move forward and backward, and the right outer wall of the storage frame (133) is connected with three iron support plates (1310) from front to back at intervals. The invention is used for placing a cleaning cloth, wherein three iron support plates (1310) correspond to the middle roller (2) and the outer roller (3) one by one, and the iron support plates (1310) are slidably matched with the right side wall of the casing (1). The inner bottom of the iron support plates (1310) is magnetically attracted with two front and rear magnets (1311) for pressing and fixing the cleaning cloth. A driving member for driving the movable plate (131) to reciprocate left and right is provided in the casing (1), and an opening (16) is provided on the left inner wall of the casing (1) for allowing the storage frame (133) to enter the left chamber (11).

3. The grinding device for ink printing pigment particles according to claim 2, characterized in that: The scraper frame (9) comprises a rotating shaft (91) rotatably connected between the two connecting plates (8), the rotating shaft (91) and the housing (1) being slidably matched, the rotating shaft (91) being connected to a guide plate (92) located in front of the front outer roller (3), the guide plate (92) having a groove at the rear side of the inner bottom, a long scraper (93) being installed in the groove, and the top of the long scraper (93) being flush with the inner bottom of the guide plate (92).

4. The grinding device for ink printing pigment particles according to claim 3, characterized in that: The second locking member (10) comprises a slide plate (101) slidably arranged on the right outer wall of the housing (1), the slide plate (101) being rotatably connected to the right side of the rotating shaft (91), and two upper and lower limiting rods (15) being fixedly connected to the right outer wall of the housing (1), the two limiting rods (15) being respectively located at the upper and lower sides of the slide plate (101) and contacting the slide plate (101) to limit the rotation of the slide plate (101), an internal thread sleeve (102) being connected to the right side of the slide plate (101), an external thread sleeve (103) being internally threadedly connected to the internal thread sleeve (102), a rhombus groove (105) being formed in the external thread sleeve (103), and a rhombus rod (104) matching the rhombus groove (105) being connected to the right end of the rotating shaft (91), and the structure of the first locking member (76) is the same as that of the second locking member (10).

5. The grinding device for ink printing pigment particles according to claim 4, characterized in that: An adjusting plate (51) capable of moving forward and backward is provided at the lower part of the hopper (5), and the adjusting plate (51) is used to adjust the amount of material fed into the hopper (5).

6. The grinding device for ink printing pigment particles according to claim 5, characterized in that: The driving member comprises a screw rod (1312) rotatably connected to the housing (1), the screw rod (1312) being threadedly connected to the movable plate (131), a servo motor (1313) being installed in the left chamber (11), and an output shaft of the servo motor (1313) being connected to the screw rod (1312).

7. The grinding device for ink printing pigment particles according to claim 6, characterized in that: The adjusting member (6) comprises a screw rod (61) rotatably connected to the housing (1), a nut (62) being threadedly connected to the screw rod (61), and the nut (62) being fixedly connected to a movable block (4) directly below the screw rod (61).

8. The grinding device for ink printing pigment particles according to claim 7, characterized in that: The driving mechanism comprises two front and rear driving motors (121) mounted on the left side of the bottom inner side of the housing (1); the output shaft of the front driving motor (121) is connected to the front outer roller (3) through a belt transmission component 1 (122); three tensioning wheels (123) are connected to the left side of the chamber (11) in a rotational manner from the back to the front; the middle tensioning wheel (123) is located on the inner side of the belt of the belt transmission component 1 (122); the tensioning wheels (123) on the front and rear sides are located on the outer side of the belt of the belt transmission component 1 (122); the output shaft of the rear driving motor (121) is connected to the middle roller (2) through a belt transmission component 2 (124); the left sides of the middle roller (2) and the rear outer roller (3) are both connected to a face gear (125); a spur gear (126) is connected to the left side of the chamber (11); the spur gear (126) is located on the left side of the face gear (125) and meshes with the face gear (125).

9. The grinding device for ink printing pigment particles according to claim 8, characterized in that: Lifting rods (142) are slidably connected to the inner walls of the left and right sides of the casing (1) via sliding sleeves (141); the bottom ends of the two lifting rods (142) are connected to material guide blocks (143); the material guide blocks (143) are located between the middle roller (2) and the rear outer roller (3) and are used to guide the pigment between the middle roller (2) and the rear outer roller (3); the lower parts of the front and rear sides of the material guide blocks (143) are both arc-shaped; and the front and rear side surfaces of the material guide blocks (143) are both inclined.

10. The grinding device for ink printing pigment particles according to claim 9, characterized in that: Both the middle roller (2) and the outer roller (3) are equipped with electric heating elements and temperature sensors.

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