A masterbatch grinding device

Abstract

The present invention provides a masterbatch grinding device, which mainly relates to the field of masterbatch grinding equipment. A masterbatch grinding device comprises a frame, three grinding rollers are arranged in an array on the frame, an adjustment mechanism for adjusting the distance between the grinding rollers is arranged on the side of the frame, and a driving mechanism for driving the grinding rollers to rotate differentially is arranged on the side of the frame; a reciprocating driving mechanism is arranged at the front end of the frame, a feeding driver is arranged above the feeding gun, two peristaltic wheels are arranged relatively on both sides of the feeding channel, and a transmission mechanism for driving the two peristaltic wheels to rotate in opposite directions is arranged on the feeding motor; scrapers are arranged at both ends of the frame, and both sides of the frame are hinged with receiving frames. The beneficial effects of the present invention are: the present invention can automatically complete the repeated grinding of masterbatch viscous raw materials, improve the quality of the product, reduce the participation of manpower in the grinding process, and greatly improve the productivity.

Description

Technical Field

[0001] The invention mainly relates to the field of masterbatch grinding equipment, in particular to a masterbatch grinding device. Background Art

[0002] The masterbatch processing process has three steps. First, the pigment is treated, then the treated pigment is mixed with the carrier, and finally the mixed material is plasticized and granulated. When preparing masterbatch by the ink method, a three-roll grinder is usually used to grind the viscous material to break up the pigment particle agglomerates in the color paste and generate primary particles. In order to achieve better product effects, the viscous raw materials are usually ground repeatedly during the grinding process to make them more dispersible and obtain higher quality masterbatches.

[0003] At present, repeated grinding of materials still requires operators to collect the materials and reload them between the two initial rollers. If the operator always looks after the machine, it will be a waste of manpower. Once the materials ground for the first time are collected in batches and then concentrated for the second grinding, the moisture will be lost due to the long storage time, and the second and third grinding effects will also be affected. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the present invention provides a masterbatch grinding device, which can automatically complete multiple repeated grinding of masterbatch viscous raw materials, improve product quality, reduce human participation in the grinding process, and greatly improve productivity.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A masterbatch grinding device comprises a frame, three grinding rollers are arranged in an array on the frame, an adjustment mechanism for adjusting the distance between the grinding rollers is arranged on the side of the frame, and a driving mechanism for driving the grinding rollers to rotate differentially is arranged on the side of the frame; a feeding box is arranged on the top of the front end of the frame, a feeding hose is arranged at the bottom of the feeding box, a feeding gun is arranged at the front end of the feeding hose, a reciprocating driving mechanism is arranged at the front end of the frame, the reciprocating driving mechanism is used to drive the feeding gun to reciprocate and linearly move, a feeding driver is arranged above the feeding gun, the feeding driver comprises a feeding motor, two peristaltic wheels and a limit plate, the limit plate forms a feeding channel allowing the feeding hose to pass through, and the two peristaltic wheels The driving wheels are relatively arranged on both sides of the feeding channel, and the feeding motor is provided with a transmission mechanism for driving the two peristaltic wheels to rotate towards each other; scraper plates are arranged at both ends of the frame body, and the distance between the scraper plate and the grinding roller is adjustable, and the frame body is hinged on both sides of the frame body, and a lifting cylinder is arranged between the frame body and the receiving frame, and a receiving plate is arranged on the receiving frame, and the receiving plate is tightly fitted with the top surface of the scraper plate, baffles are arranged on both sides of the receiving plate, and linear driving mechanisms are arranged on the top of both sides of the receiving frame, and a pushing plate adapted to the linear driving mechanism is arranged at the end of the receiving plate, and the bottom of the pushing plate is tightly fitted with the top surface of the receiving plate, and the top of the pushing plate is provided with air blowing ports arranged along the length direction.

[0007] The linear drive mechanism includes linear guide rails arranged on both sides of the supporting frame and a transmission screw arranged parallel to the linear guide rails, sliding seats are arranged on the linear guide rails on both sides, and a screw nut connected to the sliding seat is arranged on the transmission screw. A linear drive motor is arranged at one end of the transmission screw, and a mounting seat is arranged between the sliding seats on both sides, and the push plate is arranged at the bottom of the mounting seat.

[0008] The air outlet is a long strip air outlet, and the air outlet is connected to a high-pressure air pump through a pipeline.

[0009] The three grinding rollers are respectively a left grinding roller, a middle grinding roller and a right grinding roller. The adjusting mechanism includes sliding rails arranged on both sides of the frame, bearing seats are slidably arranged on the sliding rails, the left grinding roller and the right grinding roller are rotatably mounted on the bearing seats on both sides respectively, an adjusting screw parallel to the sliding rail is arranged at the bottom of the sliding rail, a screw nut connected to the bearing seat is matched on the adjusting screw, and the driving mechanism is three groups of speed regulating motors, and the three groups of speed regulating motors are respectively drivingly connected to the rotating shafts of the left grinding roller, the middle grinding roller and the right grinding roller.

[0010] The three groups of speed regulating motors drive the left grinding roller, the middle grinding roller and the right grinding roller to rotate at a speed of 1:3:9 or 9:3:1.

[0011] The reciprocating drive mechanism is arranged above two adjacent grinding rollers, and the reciprocating drive mechanism includes a feeding rack, a feeding rail and a feeding power screw. The feeding rail and the feeding power screw are arranged on the feeding rack in parallel. A power motor is arranged at one end of the feeding power screw. A feeding seat is slidably arranged on the feeding rail, and the feeding gun is fixedly connected to the feeding seat.

[0012] The peristaltic wheel comprises a peristaltic frame, and a plurality of peristaltic rollers are arranged at the far end of the peristaltic frame so as to rotate evenly in a circle. The axis of the peristaltic rollers is parallel to the axis of the peristaltic frame, and the peristaltic rollers on the two peristaltic frames run synchronously.

[0013] Scraper supports for installing the scraper are arranged on both sides of the frame, a scraper seat is arranged in the middle of the scraper, a scraper cylinder is arranged between the scraper seat and the scraper support, and the extension and retraction of the scraper cylinder controls the close contact between the scraper and the grinding roller. Beneficial Effects

[0014] The device can receive and automatically return the ground material by setting up the receiving racks on both sides, so as to complete the subsequent multiple grindings. The grinding process requires almost no human participation, which reduces the consumption of labor costs and improves the processing efficiency. The receiving racks on both sides are equipped with linear drive mechanisms that drive the pusher plates, so that the ground material can be pushed automatically to replace the current manual filling operation, and improve the automation of feeding in repeated grinding of materials.

[0015] The left grinding roller, the middle grinding roller and the right grinding roller of the device can switch the grinding speed ratio from 1:3:9 to 9:3:1 according to the needs of repeated grinding, and at the same time, the rotation direction is changed, so as to complete the reversing grinding of the masterbatch material, thereby realizing repeated grinding of the masterbatch to improve the quality of the masterbatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the first stereoscopic viewing angle structure of the present invention;

[0017] Figure 2 is a schematic diagram of a second stereoscopic viewing angle structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the main viewing angle structure of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the present invention from a top view perspective;

[0020] Figure 5 It is a schematic diagram of the left-viewing perspective structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the grinding roller of the present invention in a top view;

[0022] Figure 7 The present invention Figure 1 A partial enlarged structural diagram of the middle part;

[0023] Figure 8 The present invention Figure 1 A schematic diagram of the partially enlarged structure of the middle B part;

[0024] Fig. 9 It is a schematic diagram of the structure of the peristaltic wheel of the present invention.

[0025] Numbers shown in the accompanying drawings: 1, frame; 2, feeding box; 3, reciprocating drive mechanism; 4, feeding driver; 5, scraper plate; 6, receiving frame; 7, lifting cylinder; 8, linear drive mechanism; 10, grinding roller; 11, adjustment mechanism; 12, driving mechanism; 13, sliding rail; 14, adjustment screw; 21, feeding hose; 22, feeding gun; 31, feeding frame; 32, feeding rail; 33, feeding power screw; 34, power motor; 35, feeding seat; 36, support rail; 37, support member ; 41. Feeding motor; 42. Peristaltic wheel; 43. Limiting plate; 44. Feeding channel; 45. Transmission mechanism; 46. Peristaltic frame; 47. Peristaltic roller; 51. Scraper support; 52. Scraper seat; 53. Scraper cylinder; 61. Receiver plate; 62. Baffle; 63. Pusher plate; 64. Air outlet; 81. Linear guide rail; 82. Drive screw; 83. Sliding seat; 84. Linear drive motor; 85. Mounting seat; 101 Left grinding roller; 102. Middle grinding roller; 103. Right grinding roller. DETAILED DESCRIPTION

[0026] The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the application. Example

[0027] The present invention discloses a masterbatch grinding device, wherein each moving part of the device is controlled by a controller. The mechanical structure of the device is as follows: the grinding device comprises a frame 1, on which three grinding rollers 10 are arranged in an array, and the three grinding rollers 10 are arranged in parallel. The grinding of viscous materials can be completed by extrusion and friction between the grinding rollers 10. The three grinding rollers 10 are respectively a left grinding roller 101, a middle grinding roller 102 and a right grinding roller 103. The rotation direction of the middle grinding roller 102 is opposite to that of the left grinding roller 101 and the right grinding roller 103. In this embodiment, the left grinding roller 101 is defined as the starting point, and the right grinding roller 103 is defined as the end point. From the starting point to the end point, the rotation speed of the grinding roller 10 increases or decreases. An adjusting mechanism 11 for adjusting the distance between the grinding rollers 10 is installed on the side of the frame 1. The distance between adjacent grinding rollers 10 can be adjusted by the adjusting mechanism 11, thereby completing the grinding of materials with different viscosities. The side of the frame 1 is provided with a driving mechanism 12 for driving the grinding rollers 10 to rotate at a differential speed, and the driving mechanism 12 can realize the differential rotation of the left grinding roller 101, the middle grinding roller 102, and the right grinding roller 103. Specifically, the driving mechanism 12 in this embodiment is three sets of speed regulating motors, and the three sets of speed regulating motors are respectively connected to the rotating shafts of the left grinding roller 101, the middle grinding roller 102, and the right grinding roller 103 through couplings. The speed regulating motors can realize the differential rotation of the three grinding rollers 10, ensuring that the speed ratio of the three grinding rollers 10 is 1:3:9 or 9:3:1. When the speed ratio of the three grinding rollers 10 is 1:3:9, the left grinding roller 101 and the right grinding roller 103 rotate clockwise, and the middle grinding roller 102 rotates counterclockwise. When the speed ratio of the three grinding rollers 10 is 9:3:1, the rotation directions of the three grinding rollers 10 change, that is, the left grinding roller 101 and the right grinding roller 103 rotate counterclockwise, and the middle grinding roller 102 rotates clockwise.

[0028] The viscous material can be efficiently ground by the differential rotation of the three grinding rollers 10. The three grinding rollers 10 can be matched with the receiving plate 61 of the device by reversing the speed ratio and changing the rotation direction to complete the reverse grinding of the viscous material. By repeatedly reversing the speed ratio and changing the rotation direction, multiple repeated grindings are finally completed to achieve a better grinding effect.

[0029] More specifically, in order to ensure the distance adjustment between the left grinding roller 101, the right grinding roller 103 and the middle grinding roller 102, the frame 1 is provided with sliding rails 13 on both sides in this embodiment, and the bearing seats are slidably installed on the sliding rails 13, and the left grinding roller 101 and the right grinding roller 103 are respectively rotatably installed with the bearing seats on both sides. An adjusting screw 14 parallel to the sliding rail 13 is rotatably installed below the sliding rail 13, and a screw nut connected to the bearing seat is installed on the adjusting screw 14. By adjusting the adjusting screw 14, the bearing seat can be driven to run straight along the sliding rail 13, so as to adjust the gap between the left grinding roller 101, the right grinding roller 103 and the middle grinding roller 102. Further, a hand wheel for easy adjustment can be installed at the end of the adjusting screw 14, and in order to prevent the grinding roller 10 from vibrating and changing the spacing after the spacing adjustment is completed, a fastening device that is suspended and tightly against the outer wall of the hand wheel can be installed on the outer wall of the frame 1, so as to prevent the hand wheel from rotating due to vibration by using friction, so as to ensure that the gap between the grinding rollers after adjustment can be maintained stable, so as to ensure a consistent grinding effect.

[0030] Specifically, the grinding device in this embodiment has an automatic feeding mechanism. A feeding box 2 is installed at the top of the front end of the frame 1. The feeding box 2 is installed on the ground or fixedly connected to the frame 1 through a bracket. The feeding box 2 serves as a temporary storage bin for materials. The repeated grinding of masterbatch materials can be completed by the operator only needing to replenish the materials in time. A feeding hose 21 is installed at the bottom of the feeding box 2, and a feeding gun 22 is installed at the front end of the feeding hose 21. Under the action of gravity, the viscous material is discharged from the feeding gun 22 through the feeding hose 21. The feeding gun 22 is located at the joint of the left grinding roller 101 and the middle grinding roller 102, so that the material can be fed between the left grinding roller 101 and the middle grinding roller 102. In order to ensure the uniformity of feeding, thereby improving the grinding efficiency and grinding effect, a reciprocating drive mechanism 3 is installed at the front end of the frame 1 in this embodiment, and the reciprocating drive mechanism 3 is used to drive the feeding gun 22 to reciprocate linearly. The reciprocating drive mechanism 3 can drive the feeding gun 22 to reciprocate along the axis direction of the grinding roller 10, so that the material is evenly fed between the left grinding roller 101 and the middle grinding roller 102. The reciprocating drive mechanism 3 is arranged above two adjacent grinding rollers. The reciprocating drive mechanism 3 is arranged at the top between the left grinding roller 101 and the middle grinding roller 102. The reciprocating drive mechanism 3 includes a feeding rack 31, a feeding rail 32 and a feeding power screw 33, and the feeding rack 31 is installed on both sides of the frame 1. The feeding rail 32 is fixed on the feeding rack 31, and the feeding power screw 33 is installed on the feeding rack 31 in a parallel state with the feeding rail 32. A power motor 34 is installed at one end of the feeding power screw 33, and the power motor 34 drives the feeding power screw 33 to rotate through a coupling. A feeding seat 35 is slidably installed on the feeding rail 32, and the feeding gun 22 is fixedly connected to the feeding seat 35. The power motor 34 drives the feeding power screw 33 to rotate, thereby driving the feeding seat 35 to drive the feeding gun 22 to reciprocate along the length direction of the grinding roller 10, accompanied by the feeding action of the feeding driver 4 below, the viscous material is evenly fed between the left grinding roller 101 and the middle grinding roller 102.

[0031] More specifically, in order to ensure that the feeding hose 21 can slide stably with the feeding gun 22, another support rail 36 is provided between the feeding racks 31, the support rail 36 is parallel to the feeding rail 32, and a group of support members 37 are slidably installed on the feeding rail 32 and the support rail 36, and the top of the support member 37 has a support cylinder, and the feeding hose 21 passes through the support cylinder and is connected to the feeding gun 22. In this embodiment, elastic ropes or springs are connected between the plurality of support members 37 to ensure the distance between the support members 37, and when the feeding gun 22 performs a reciprocating linear motion to feed, the support member 37 can stably follow and thus stably support the feeding hose 21.

[0032] A feeding driver 4 is installed above the feeding gun 22, and the driver 4 is installed on the feeding seat 35. The feeding driver 4 gradually pushes out the viscous material in the feeding hose 21 by extrusion to complete continuous feeding. Specifically, the feeding driver 4 includes a feeding motor 41, two peristaltic wheels 42 and a limit plate 43, and the limit plate 43 forms a feeding channel 44 that allows the feeding hose 21 to pass through, and the feeding hose 21 passes through the feeding channel 44. The two peristaltic wheels 42 are relatively installed on both sides of the feeding channel 44, and a transmission mechanism 45 for driving the two peristaltic wheels 42 to rotate in opposite directions is provided on the feeding motor 41. Through the opposite rotation of the two peristaltic wheels 42, the viscous material in the feeding hose 21 can be squeezed out. Specifically, the peristaltic wheel 42 includes a peristaltic frame 46, which is a quasi-circular plate with bilateral symmetry. A plurality of peristaltic rollers 47 are installed on the outer circumference of the peristaltic frame 46 so as to rotate evenly in a circle. The axis of the peristaltic roller 47 is parallel to the axis of the peristaltic frame 46. When the peristaltic frame 46 is driven and rotated by the feeding motor 41, the peristaltic roller 47 contacts the feeding hose 21 and rotates, thereby reducing the friction damage to the feeding hose 21. More specifically, the peristaltic rollers 47 on the two peristaltic frames 46 operate synchronously, and the peristaltic rollers 47 on the two peristaltic frames 46 squeeze the feeding hose 21 at the same time, thereby realizing the gradual extrusion of the material in the feeding hose 21.

[0033] Scraper plates 5 are installed at both ends of the frame 1, and the distance between the scraper plates 5 and the grinding roller 10 is adjustable. Specifically, scraper supports 51 for installing the scraper plates 5 are welded or bolted on both sides of the frame 1. In this embodiment, the scraper supports 51 are a pair of parallel linear sliding guide rails, and driving seats that slide with the scraper supports 51 are arranged on both sides of the bottom of the scraper plate 5. A scraper seat 52 is provided in the middle of the scraper plate 5, and a scraper cylinder 53 is installed between the scraper seat 52 and the scraper support 51. The bottom of the scraper cylinder 53 is fixedly installed with the scraper seat 52, and the cylinder rod end of the scraper cylinder 53 is fixedly connected with the scraper seat 52. The scraper plate 5 and the grinding roller 10 can be tightly fitted and separated by the extension and contraction of the scraper cylinder 53. The scraper plate 5 can scrape the material on the grinding roller 10 and make it fall onto the subsequent receiving plate 61.

[0034] The receiving frame 6 is hinged on both sides of the frame body 1, and the receiving frame 6 can rotate around the hinge axis within a certain angle. A lifting cylinder 7 is installed between the frame body 1 and the receiving frame 6, and the lifting cylinder 7 can be a cylinder or a hydraulic cylinder. The bottom of the lifting cylinder 7 is hinged to the frame body 1, and the piston rod end of the lifting cylinder 7 is hinged to the middle of the receiving frame 6. When the lifting cylinder 7 is in a retracted state, the receiving frame 6 is at the bottom, and when the lifting cylinder 7 is in an extended state, the receiving frame 6 is at a high point. A receiving plate 61 is installed on the receiving frame 6, and the receiving plate 61 is tightly fitted with the top surface of the scraper plate 5. The receiving plate 61 receives the viscous material scraped off by the scraper plate 5. There are baffles 62 on both sides of the receiving plate 61, and the baffles 62 can limit the material to prevent the material from overflowing outside the range of the receiving plate 61. The top of both sides of the receiving frame 6 is provided with a linear drive mechanism 8, and a push plate 63 is provided at the end of the receiving plate 61, and the bottom of the push plate 63 is closely fitted with the top surface of the receiving plate 61. The push plate 63 is driven by the linear drive mechanism 8, so that the push plate 63 can be closely fitted with the receiving plate 61, thereby pushing the viscous material on the receiving plate 61 to make it slide off. In this embodiment, the receiving plate 61 and the push plate 63 can be sprayed with an anti-adhesion coating, thereby reducing the degree of adhesion of the viscous material, so that the viscous material can slide off the receiving plate 61 better.

[0035] In this embodiment, the top of the push plate 63 can also be equipped with a blowing port 64 arranged along the length direction. The blowing port 64 is a long strip air outlet arranged in a straight line, and the blowing port 64 is connected to a high-pressure air pump through a pipeline. The high-pressure air can be blown out by the high-pressure air pump, so that the high-pressure air is blown out close to the push plate 63, further promoting the sliding of the viscous material and reducing the adhesion of the viscous material.

[0036] The linear drive mechanism 8 described above is used to drive the push plate 63 to perform linear motion on the top surface of the receiving plate 61, so as to push the viscous material on the receiving plate 61 down to the grinding roller 10 for grinding. The linear drive mechanism 8 includes linear guide rails 81 installed on both sides of the receiving frame 6 and a transmission screw 82 arranged parallel to the linear guide rails 81. The linear guide rails 81 on both sides are provided with sliding seats 83, and the transmission screw 82 is provided with a screw nut connected to the sliding seat 83. A linear drive motor 84 is installed at one end of the transmission screw 82, and the linear drive motor 84 drives the transmission screw 82 to rotate through a coupling. A mounting seat 85 is installed between the sliding seats 83 on both sides, and the push plate 63 is fixedly installed at the bottom of the mounting seat 85 by bolts. The linear drive motor 84 is used to drive the transmission screw 82, so that the transmission screw 82 and the screw nut cooperate to drive the mounting seat 85 to slide along the linear guide rail 81, so that the push plate 63 can be closely attached to the receiving plate 61 and the viscous material received thereon can be pushed down to the grinding roller 10 for grinding. Furthermore, a plurality of spring rods can be linearly installed between the top of the push plate 63 and the mounting seat 85, and the pressure of the spring rods can make the push plate 63 and the receiving plate 61 closely attached, so as to better push the viscous material.

[0037] The device is suitable for the continuous grinding process of masterbatch-type viscous materials. When the device is performing the grinding operation, according to the time sequence, its operation procedure is as follows: the viscous material falls from the feeding box 2 into the feeding gun 22 through the feeding hose 21 under the action of gravity, and the controller controls the reciprocating drive mechanism 3 to drive the feeding gun 22 to perform reciprocating linear motion at the intersection of the left grinding roller 101 and the middle grinding roller 102. At this time, the rotation speeds of the left grinding roller 101: the middle grinding roller 102: the right grinding roller 103 are 1:3:9. During this period, the peristaltic wheel 42 in the feeding driver 4 rotates in opposite directions, thereby driving the viscous material in the feeding hose 21 to be continuously extruded between the left grinding roller 101 and the middle grinding roller 102. The material is ground with the differential rotation of the left grinding roller 101, the middle grinding roller 102 and the right grinding roller 103, and is finally scraped by the scraper plate 5 at one end of the right grinding roller 103, and the material falls from the scraper plate 5 into the receiving plate 61 for receiving. When the feeding gun 22 squeezes out a certain amount of material, the controller controls the feeding driver 4 to stop the action to suspend the feeding. After a certain period of time, the material completes the first grinding and is received by the receiving plate 61 at the right grinding roller 103. Then the rotation direction of the left grinding roller 101, the middle grinding roller 102 and the right grinding roller 103 changes, and the rotation speed of the left grinding roller 101: the middle grinding roller 102: the right grinding roller 103 is 9:3:1. At the same time, the controller controls the scraper cylinder 53 at the end of the right grinding roller 103 to contract so that the scraper plate 5 is out of contact with the right grinding roller 103, and the scraper cylinder 53 at the end of the left grinding roller 101 extends so that the scraper plate 5 is in contact with the left grinding roller 101. Then the controller controls the lifting cylinder 7 at the end of the right grinding roller 103 to extend and push the receiving frame 6 to the highest point, and the controller controls the linear drive mechanism 8 to drive the push plate 63 to push the material down so that it falls between the right grinding roller 103 and the middle grinding roller 102. While the lifting cylinder 7 at the right grinding roller 103 is extended, the controller also controls the lifting cylinder 7 at the left grinding roller 101 to contract, so that the receiving plate 61 at this end is closely attached to the scraper plate 5. After the material that has been ground once is pushed down by the linear drive mechanism 8 at the right grinding roller 103, it is scraped by the scraper plate 5 at the left grinding roller 101 as the grinding roller 10 is being carried out, and finally enters the receiving plate 61 at the left grinding roller 101. When the linear drive mechanism 8 at the right grinding roller 103 moves to the front end, the linear drive mechanism 8 is reset, and after a certain period of time, the material completes the second round of grinding and is collected in the receiving plate 61 at the left grinding roller 101. At this time, the controller controls the lifting cylinder 7 at the left grinding roller 101 to extend, the scraper cylinder 53 at the left grinding roller 101 to contract to make the scraper plate 5 disengage from the left grinding roller 101, and the scraper cylinder 53 at the right grinding roller 103 to extend to make the scraper plate 5 contact the right grinding roller 103. Then, the controller controls the left grinding roller 101 , the middle grinding roller 102 and the right grinding roller 103 to change their rotation directions, and the rotation speeds of the left grinding roller 101 : the middle grinding roller 102 : the right grinding roller 103 are 1:3:9.Then the controller controls the linear drive mechanism 8 at the end of the left grinding roller 101 to drive the push plate 63 to push down the material that has completed the second round of grinding, and the material falls between the left grinding roller 101 and the middle grinding roller 102, and finally completes the third round of grinding of the material. The material falls into the receiving component under the guidance of the scraper plate 5 at the end of the right grinding roller 103. After the third round of grinding is completed, the lifting cylinder 7 at the end of the right grinding roller 103 shrinks, so that the receiving plate 61 at the end of the right grinding roller 103 is tightly attached to the scraper plate 5, and the controller controls the feeding driver to re-feed the material between the left grinding roller 101 and the middle grinding roller 102, completing a new round of material grinding.

Claims

1. A masterbatch grinding device, comprising a frame (1), wherein three grinding rollers (10) are arranged in an array on the frame (1), an adjusting mechanism (11) for adjusting the distance between the grinding rollers (10) is arranged on the side of the frame (1), and a driving mechanism (12) for driving the grinding rollers (10) to rotate at a differential speed is arranged on the side of the frame (1); characterized in that: A feeding box (2) is arranged at the top of the front end of the frame (1), a feeding hose (21) is arranged at the bottom of the feeding box (2), a feeding gun (22) is arranged at the front end of the feeding hose (21), a reciprocating drive mechanism (3) is arranged at the front end of the frame (1), the reciprocating drive mechanism (3) is used to drive the feeding gun (22) to reciprocate linearly, a feeding driver (4) is arranged above the feeding gun (22), the feeding driver (4) comprises a feeding motor (41), two peristaltic wheels (42) and a limit plate (43), the limit plate (43) forms a feeding channel (44) allowing the feeding hose (21) to pass through, and the two The peristaltic wheels (42) are arranged on both sides of the feeding channel (44) relatively to each other, and the feeding motor (41) is provided with a transmission mechanism (45) for driving the two peristaltic wheels (42) to rotate in opposite directions; scraper plates (5) are arranged at both ends of the frame (1), and the distance between the scraper plates (5) and the grinding roller (10) is adjustable; both sides of the frame (1) are hinged with receiving frames (6), and a lifting cylinder (7) is arranged between the frame (1) and the receiving frame (6); a receiving plate (61) is arranged on the receiving frame (6), and the receiving plate (61) is tightly fitted with the top surface of the scraper plate (5), and baffle plates (62) are arranged on both sides of the receiving plate (61). ), a linear drive mechanism (8) is arranged on the top of both sides of the receiving frame (6), a push plate (63) adapted to the linear drive mechanism (8) is arranged at the end of the receiving plate (61), the bottom of the push plate (63) is tightly fitted with the top surface of the receiving plate (61), and a blowing port (64) arranged along the length direction is arranged on the top of the push plate (63); the three grinding rollers (10) are respectively a left grinding roller (101), a middle grinding roller (102) and a right grinding roller (103), the adjusting mechanism (11) comprises sliding rails (13) arranged on both sides of the frame body (1), a bearing seat is slidably arranged on the sliding rails (13), the left The grinding roller (101) and the right grinding roller (103) are rotatably mounted on the bearing seats on both sides respectively; an adjusting screw (14) parallel to the sliding rail (13) is arranged at the bottom; a screw nut connected to the bearing seat is arranged on the adjusting screw (14); the driving mechanism (12) comprises three groups of speed regulating motors; the three groups of speed regulating motors are respectively connected to the rotating shafts of the left grinding roller (101), the middle grinding roller (102) and the right grinding roller (103); the three groups of speed regulating motors drive the left grinding roller (101), the middle grinding roller (102) and the right grinding roller (103) to rotate at a speed of 1:3:9 or 9:3:

1.

2. A masterbatch grinding device according to claim 1, characterized in that: The linear drive mechanism (8) comprises linear guide rails (81) arranged on both sides of the receiving frame (6) and a transmission screw (82) arranged parallel to the linear guide rails (81); sliding seats (83) are arranged on the linear guide rails (81) on both sides; a screw nut connected to the sliding seat (83) is arranged on the transmission screw (82); a linear drive motor (84) is arranged at one end of the transmission screw (82); a mounting seat (85) is arranged between the sliding seats (83) on both sides; and the push plate (63) is arranged at the bottom of the mounting seat (85).

3. A masterbatch grinding device according to claim 1, characterized in that: The air outlet (64) is a long strip-shaped air outlet, and the air outlet (64) is connected to a high-pressure air pump via a pipeline.

4. A masterbatch grinding device according to claim 1, characterized in that: The reciprocating drive mechanism (3) is arranged above two adjacent grinding rollers, and comprises a feeding frame (31), a feeding rail (32) and a feeding power screw (33). The feeding rail (32) and the feeding power screw (33) are arranged on the feeding frame (31) in parallel, a power motor (34) is arranged at one end of the feeding power screw (33), a feeding seat (35) is slidably arranged on the feeding rail (32), and the feeding gun (22) is fixedly connected to the feeding seat (35).

5. The masterbatch grinding device according to claim 1, characterized in that: The peristaltic wheel (42) comprises a peristaltic frame (46), a plurality of peristaltic rollers (47) are arranged at the far end of the peristaltic frame (46) to rotate evenly in a circle, the axis of the peristaltic rollers (47) is parallel to the axis of the peristaltic frame (46), and the peristaltic rollers (47) on the two peristaltic frames (46) operate synchronously.

6. A masterbatch grinding device according to claim 1, characterized in that: Scraper supports (51) for mounting a scraper plate (5) are arranged on both sides of the frame (1), and a scraper plate (5) is arranged in the middle of the scraper plate (5). A scraper seat (52), a scraper cylinder (53) is arranged between the scraper seat (52) and the scraper support (51), The extension and retraction of the scraper cylinder (53) controls the close contact between the scraper plate (5) and the grinding roller (10).

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