CN211070262U - Feeding device of three-roller grinding machine - Google Patents

Abstract

The utility model discloses a three-roller grinder loading attachment, it includes support frame, screen cloth, vibrating part, first stock guide, scrapes material subassembly and second stock guide, and the support frame has installation space, and the screen cloth is located installation space and is connected with the support frame, and the screen cloth is used for holding and waits to sieve thick liquids. The vibrating piece is connected with the screen and drives the screen to vibrate. The first material guide plate is used for receiving undersize products of the screen and conveying the undersize products to a position between a middle roller and a front roller of the three-roller grinding machine. The scraping component is used for scraping oversize materials of the screen. The second material guide plate is positioned between the first material guide plate and the three-roller grinding machine and is connected with the support frame, and the second material guide plate is used for bearing the slurry scraped by the scraper and conveying the slurry to a position between a rear roller and a front roller of the three-roller grinding machine. Above-mentioned three-roller grinder loading attachment sieves in advance the thick liquids of treating grinding, has increased loading attachment's function, has promoted its pay-off efficiency, and then is favorable to improving the grinding efficiency of thick liquids.

Description

Feeding device of three-roller grinding machine

Technical Field

The utility model relates to a three-roller grinds machine technical field, especially relates to a three-roller grinds machine loading attachment.

Background

The three-roller grinding machine is the most effective grinding and dispersing equipment for high-viscosity materials, is mainly suitable for manufacturing sizing agents such as paint, printing ink, pigment, plastic and the like, and particularly realizes grinding of the sizing agents by mutual extrusion of the surfaces of three horizontal rollers and friction generated by speed difference of adjacent rollers, so that the sizing agents are crushed and reach preset size fractions, and the use requirements of the sizing agents are met. The feeding device of the three-roller grinding machine is equipment for conveying slurry to be ground to the three-roller grinding machine, and can realize pretreatment of the slurry to be ground or limitation of a flow path of the slurry to be ground so as to reduce pollution to the environment caused by volatilization of the slurry to be ground.

However, traditional three-roller grinder loading attachment's simple structure, the function is single, only can realize treating the position transfer of grinding thick liquids, in actual production, because the particle size of the solid particle in the thick liquids of waiting to grind is not the same, if unified send into thick liquids to grind in proper order between the well roller of three-roller grinder and the back roller, well roller and back roller pan feeding department contain a large amount of small-size granule that need not to grind repeatedly, thereby cause the effective grinding volume reduction of three-roller grinder, thereby the grinding efficiency of three-roller grinder has been influenced, be unfavorable for improving the production efficiency and the market competition of thick liquids product.

SUMMERY OF THE UTILITY MODEL

Therefore, a feeding device of a three-roller grinder is needed to solve the technical problems of simple structure and single function.

The utility model provides a loading attachment is ground to three-roller, this loading attachment is ground to three-roller includes support frame, screen cloth, vibrating part, first stock guide, scrapes material subassembly and second stock guide, the support frame is used for being connected with the frame that the three-roller ground the machine, the support frame has installation space, the screen cloth is located in the installation space and with the support frame is connected, the screen cloth is used for accepting the thick liquids of waiting to sieve. The vibrating piece with the screen cloth is connected, the vibrating piece is used for driving the screen cloth reaches wait to sieve the thick liquids vibration. The first material guide plate is located between the screen and the three-roller grinding machine and connected with the support frame, the input end of the first material guide plate is used for bearing undersize materials of the screen, the output end of the first material guide plate is used for conveying slurry between a middle roller and a front roller of the three-roller grinding machine, and the horizontal height of the input end of the first material guide plate is higher than that of the output end of the first material guide plate. The scraping component comprises a screw rod, a driving piece and a scraping plate, the screw rod is connected with the support frame, the driving piece is arranged on the support frame, the output end of the driving piece is connected with the tail end of the screw rod in a driving mode, the scraping plate is connected with the screw rod in a threaded mode, and the scraping plate is used for scraping oversize materials of the screen. The second material guide plate is located between the first material guide plate and the three-roller grinding machine and connected with the support frame, the second material guide plate is located between a rear roller and a front roller of the three-roller grinding machine, the width of the second material guide plate is larger than that of the first material guide plate, and the second material guide plate is used for bearing the slurry scraped by the scraper and conveying the slurry to a position between the rear roller and the front roller of the three-roller grinding machine.

In one embodiment, an included angle between a plane where the input end of the first material guide plate and the output end of the first material guide plate are located and a horizontal plane is 3 degrees to 8 degrees.

In one embodiment, two side edges of the first material guide plate are respectively provided with a material baffle plate.

In one embodiment, the cross section of the second material guiding plate is in a W-shaped structure, and the second material guiding plate comprises two symmetrically arranged material collecting grooves.

In one embodiment, a plurality of discharging holes are uniformly formed in each material collecting groove.

In one embodiment, the second material guiding plate is symmetrical along the length direction thereof, and the material collecting groove on one side of the second material guiding plate forms an included angle of 1 to 3 degrees with the horizontal plane.

In one embodiment, the scraping assembly further comprises a limiting block, the limiting block is located between the scraping plate and the driving part and connected with the screw rod, and the limiting block is used for limiting the movement range of the scraping plate.

In one embodiment, a wear layer is attached to the end of the blade.

In one embodiment, the drive member is a servo motor.

In one embodiment, the vibrating member is a linear vibrator.

Above-mentioned three-roller grinding machine loading attachment, through setting up the screen cloth, can treat the thick liquids of grinding and carry out the prescreening, and utilize first stock guide and second stock guide to send into the thick liquids of different size grades three-roller grinding machine, realize treating the reposition of redundant personnel of grinding thick liquids, loading attachment has transportation thick liquids concurrently and grinds two kinds of functions in grades with thick liquids, loading attachment can be pertinence send into the thick liquids of specific size grade into the different positions of three-roller grinding machine, the reliability of loading attachment pay-off operation improves, be favorable to improving the market competition of thick liquids grinding efficiency and product.

Drawings

FIG. 1 is a schematic view showing the structure of a feeding apparatus of a three-roll grinder according to an embodiment;

FIG. 2 is a schematic view of a loading device of a three-roll grinder according to another embodiment;

FIG. 3 is a schematic cross-sectional view taken along the direction A-A in the embodiment shown in FIG. 2;

FIG. 4 is a schematic diagram showing the positional relationship between the loading device of the three-roll grinder and the three-roll grinder in one embodiment;

FIG. 5 is a schematic diagram of a scraper assembly in one embodiment;

fig. 6 is a schematic structural view of a second material guide plate according to an embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a feeding device 10 of a three-roller grinder, the feeding device 10 of the three-roller grinder includes a support frame 110, a screen 120, a vibrating member 130, a first material guiding plate 140, a scraping assembly 150 and a second material guiding plate 160, the support frame 110 is used for being connected to a frame 210 of the three-roller grinder 20, the support frame 110 has an installation space 111, the screen 120 is located in the installation space 111 and connected to the support frame 110, and the screen 120 is used for receiving a slurry to be screened. The vibrating member 130 is connected to the screen 120, and the vibrating member 130 is used for driving the screen 120 and the slurry to be screened to vibrate. The first material guide plate 140 is located between the screen cloth 120 and the three-roll grinder 20 and connected to the support frame 110, an input end of the first material guide plate 140 is used for receiving undersize of the screen cloth 120, an output end of the first material guide plate 140 is used for conveying slurry between the middle roll 230 and the front roll 240 of the three-roll grinder 20, and a horizontal height of the input end of the first material guide plate 140 is higher than a horizontal height of the output end of the first material guide plate 140. The scraping assembly 150 includes a screw rod 151, a driving member 152 and a scraping plate 153, the screw rod 151 is connected to the support frame 110, the driving member 152 is disposed on the support frame 110, an output end of the driving member 152 is drivingly connected to an end of the screw rod 151, the scraping plate 153 is threadedly connected to the screw rod 151, and the scraping plate 153 is used for scraping oversize materials of the screen 120. The second material guiding plate 160 is located between the first material guiding plate 140 and the three-roll grinder 20 and connected to the supporting frame 110, the second material guiding plate 160 is located between the rear roll 220 and the front roll 240 of the three-roll grinder 20, the width of the second material guiding plate 160 is greater than that of the first material guiding plate 140, and the second material guiding plate 160 is used for receiving the slurry scraped by the scraper 153 and conveying the slurry to the space between the rear roll 220 and the front roll 240 of the three-roll grinder 20.

Above-mentioned three-roller mill loading attachment 10, through setting up screen cloth 120, can treat the thick liquids of grinding and carry out the prescreening, and utilize first stock guide 140 and second stock guide 160 to send into three-roller mill 20 with the thick liquids of different size grades, realize treating the reposition of redundant personnel of grinding thick liquids, three-roller mill loading attachment 10 has the transportation thick liquids concurrently and grinds two kinds of functions in grades with the thick liquids, can be pertinence send into the thick liquids of specific size grade into the different positions of three-roller mill 20, the reliability of three-roller mill loading attachment 10 pay-off operation improves, be favorable to improving the market competition of thick liquids grinding efficiency and product.

The working principle of the feeding device of the three-roller grinding machine is as follows: after the vibrating member 130 is connected to the external power source, the vibrating member 130 generates periodic vibration and drives the screen 120 to vibrate, and meanwhile, the screen 120 receives the slurry transferred by the external slurry pump, and the slurry falls into the screen 120 and is driven by the screen 120 to vibrate synchronously. During the vibration of the slurry, the granular slurry having a large particle size is restrained by the mesh of the screen 120 and is caught on the screen surface of the screen 120, and at this time, the scraper 153 is moved relative to the driver 152 by the co-action of the driver 152 and the screw 151, and scrapes the slurry intercepted on the screen surface of the screen mesh 120 until the slurry falls on the second material guide plate 160 from the end of the screen mesh 120, and enters between the rear roller 220 and the front roller 240 of the three-roller grinder 20 along the second guide plate 160 to be ground, the part of the large-particle size slurry moves from the space between the back roll 220 and the middle roll 230 of the three-roll grinder 20 to the space between the middle roll 230 and the front roll 240 of the three-roll grinder 20 under the extrusion and friction of the back roll 220, the middle roll 230 and the front roll 240 of the three-roll grinder 20, the grinding path and the grinding time of the slurry are longer, thereby ensuring the full grinding of the slurry with large particle size, and leading the finished slurry to meet the requirement of using size fraction. Accordingly, the slurry with a small particle size and the slurry fall onto the first material guiding plate 140 through the mesh of the screen 120, slide along the first material guiding plate 140, and finally fall between the middle roller 230 and the front roller 240 of the three-roller grinder 20 from the output end of the first material guiding plate 140 for grinding. Under the condition, the slurry with the smaller particle size is only needed to be ground between the middle roller 230 and the front roller 240 of the three-roller grinder 20, namely, the slurry is scraped by the scraper arranged at the front roller 240, the grinding path of the slurry with the smaller particle size is shorter, the waste caused by repeated grinding of the slurry with the smaller particle size is avoided, and the production cost of the slurry is favorably reduced.

The supporting frame 110 is used for receiving the screen 120, the vibrating member 130, the first material guiding plate 140, the scraping assembly 150 and the second material guiding plate 160, so as to implement installation of the components. In one embodiment, the support bracket 110 is bolted to the frame 210 of the three-roll grinder 20. Therefore, the connection stability of the support frame 110 and the rack 210 of the three-roller grinder 20 can be improved, and the problem that the support frame 110 is overturned due to the impact of slurry on the screen 120 in the slurry feeding process is prevented, so that the slurry feeding operation is effectively carried out.

The screen 120 is used to receive the slurry to be ground and to screen the slurry according to a predetermined size fraction. In an embodiment, the edge of the screen 120 is provided with a hook, the support frame 110 is provided with a hanging ring, and the screen 120 is connected with the support frame 110 by hooking the hook and the hanging ring, so that the installation difficulty of the screen 120 is reduced. In addition, in actual operation, the screen 120 with a suitable mesh aperture can be selected according to the particle size requirements of different slurries and the technical parameters of the three-roll grinder 20, and the detailed description is omitted here. The vibrating member 130 is used for vibrating under the power-on condition and providing power for the vibration of the screen mesh 120 and the slurry so as to accelerate the movement rate of the slurry and further accelerate the slurry screening operation. In one embodiment, the vibrator 130 is a linear vibrator. In the working process of the linear vibrator, the screen 120 and the pulp are driven to generate periodic vibration along the preset direction, so that the pulp obtains a high speed, the kinetic energy of the pulp is high, the impact on the edge of the mesh of the screen 120 is high, and the pulp close to the mesh of the screen 120 can smoothly fall down from the mesh of the screen 120, so that the pulp is effectively prevented from blocking the mesh of the screen 120, and the pulp screening operation is effectively carried out.

The first material guide plate 140 is used for receiving the small-sized slurry and the slurry falling from the screen 120 and transferring the small-sized slurry and the slurry to a space between the middle roller 230 and the front roller 240 of the three-roller grinder 20 for grinding. Specifically, since the horizontal height of the input end of the first material guiding plate 140 is higher than the horizontal height of the output end of the first material guiding plate 140, when the small-particle size slurry and the slurry fall into the input end of the first material guiding plate 140, the small-particle size slurry and the slurry automatically flow to the output end of the first material guiding plate 140 under the action of the weight of the gravity along the length direction of the first material guiding plate 140, so as to accelerate the flow rate of the small-particle size slurry and the slurry on the first material guiding plate 140, thereby promoting the slurry grinding operation. In one embodiment, an included angle between a plane where the input end of the first material guiding plate 140 and the output end of the first material guiding plate 140 are located and a horizontal plane is 3 degrees to 8 degrees. Preferably, an included angle between a plane where the input end of the first material guide plate 140 and the output end of the first material guide plate 140 are located and a horizontal plane is 5 degrees. Thus, when small-particle size slurry and slurry automatically flow, the situation that the included angle between the plane where the input end of the first material guide plate 140 and the output end of the first material guide plate 140 are located and the horizontal plane is too large and the kinetic energy obtained when the small-particle size slurry and the slurry leave from the output end of the first material guide plate 140 is too large, which causes the small-particle size slurry and the slurry to impact the middle roller 230 and the front roller 240 of the three-roller grinder 20, and further the slurry splashing problem occurs, so that the smooth operation of the slurry grinding operation is ensured.

Referring to fig. 1 again, in an embodiment, two side edges of the first material guiding plate 140 are respectively provided with a material blocking plate 141. Set up striker plate 141 respectively through the both sides edge at first stock guide 140, can retrain the motion way strength of small-size footpath thick liquids and thick liquid, prevent to spatter at equipment and factory building subaerial because of the side reason of small-size footpath thick liquids and thick liquid along first stock guide 140, the material that causes is extravagant to reduce the material loss of thick liquids grinding in-process.

The scraping assembly 150 is used for scraping the slurry with a larger particle size on the screen surface of the screen mesh 120, so that the slurry with a large particle size smoothly falls between the middle roller 230 and the rear roller 220 of the three-roller grinder 20, so as to grind the slurry with a large particle size. It should be noted that, in an embodiment, the driving member 152 is a servo motor. Specifically, after the servo motor is powered on, the rotor of the servo motor firstly rotates in the forward direction and drives the screw rod 151 to rotate, in the process, the scraper 153 rotates relative to the screw rod 151 along the spiral extending direction of the screw rod 151 and is shown to be gradually close to the servo motor, that is, the scraper 153 gradually approaches the servo motor under the combined action of the servo motor and the screw rod 151 and drives the slurry on the screen mesh 120 to move until the slurry falls on the second material guide plate 160. Subsequently, the rotor of the servo motor rotates reversely and drives the screw rod 151 to rotate synchronously, and similarly, the scraper 153 is gradually far away from the servo motor under the combined action of the servo motor and the screw rod 151, so that the reset of the scraper 153 is realized, and the next slurry scraping operation is facilitated.

Referring to fig. 5, in an embodiment, the scraping assembly 150 further includes a limiting block 154, the limiting block 154 is located between the scraping plate 153 and the driving member 152 and connected to the screw rod 151, and the limiting block 154 is used for limiting a movement range of the scraping plate 153. In the process that the driving member 152 drives the scraper 153 to move, when the scraper 153 moves to the position of the limit block 154, the scraper 153 abuts against the limit block 154 and is difficult to continue to move towards the driving member 152 under the constraint of the limit block 154, in other words, the scraper 153 is difficult to continue to move towards the end surface of the rear roller 220 of the three-roller grinder 20 under the constraint of the limit block 154, so that slurry is prevented from being thrown out of the screen 120 under the drive of the scraper 153 and then falling onto the bottom surface of a factory or equipment, and the slurry scraping operation is ensured to be effectively performed. In one embodiment, a wear layer is attached to the end of the scraper 153. By attaching the wear-resistant layer to the end of the scraper 153, the wear of the scraper 153 by the screen 120 when the scraper 153 contacts the screen 120 can be reduced, so as to prolong the service life of the scraper 153 and reduce the use cost of the feeding device.

The second material guiding plate 160 is used for receiving the slurry scraped by the scraper 153 and guiding the slurry so as to smoothly guide the slurry with large particle size between the rear roller 220 and the middle roller 230 of the three-roller grinder 20 for grinding. Referring to fig. 6, in an embodiment, the cross section of the second material guiding plate 160 is a W-shaped structure, and the second material guiding plate 160 includes two symmetrically disposed material collecting slots 161. By designing the cross section of the second material guiding plate 160 to be a W-shaped structure, after the slurry with large particle size falls into the second material guiding plate 160, the slurry is divided into two material collecting grooves 161 and flows into the space between the rear roller 220 and the middle roller 230 of the three-roller grinder 20 along the openings of the two material collecting grooves 161, so that uniform feeding of the three-roller grinder 20 is ensured. In one embodiment, each of the material collecting grooves 161 is provided with a plurality of discharging holes 162. By uniformly forming a plurality of discharge holes 162 in each collecting chute 161, the slurry can uniformly fall between the rear roller 220 and the middle roller 230 of the three-roller grinder 20 through the discharge holes 162, and the contact area between the slurry and the three-roller grinder 20 is large, thereby improving the grinding efficiency of the three-roller grinder 20. In one embodiment, the second material guiding plate 160 is symmetrical along the length direction thereof, and the material collecting groove 161 on one side of the second material guiding plate 160 forms an included angle of 1 to 3 degrees with the horizontal plane. Preferably, the angle between the trough 161 and the horizontal plane is 2 degrees. It can be understood that the trough 161 is disposed to be inclined with respect to the horizontal plane so that the slurry falling on the second guide plate 160 can be automatically flowed toward the middle of the trough 161 to accelerate the dispersion of the large-sized slurry.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A feeding device of a three-roller grinder is characterized by comprising a support frame, a screen, a vibrating piece, a first material guide plate, a scraping component and a second material guide plate,

the support frame is used for being connected with a rack of the three-roller grinding machine, the support frame is provided with an installation space, the screen is positioned in the installation space and connected with the support frame, and the screen is used for receiving slurry to be screened;

the vibrating piece is connected with the screen and is used for driving the screen and the slurry to be screened to vibrate;

the first material guide plate is positioned between the screen and the three-roller grinding machine and connected with the support frame, the input end of the first material guide plate is used for bearing undersize of the screen, the output end of the first material guide plate is used for conveying slurry between a middle roller and a front roller of the three-roller grinding machine, and the horizontal height of the input end of the first material guide plate is higher than that of the output end of the first material guide plate;

the scraping component comprises a screw rod, a driving piece and a scraping plate, the screw rod is connected with the support frame, the driving piece is arranged on the support frame, the output end of the driving piece is in driving connection with the tail end of the screw rod, the scraping plate is in threaded connection with the screw rod, and the scraping plate is used for scraping oversize materials of the screen mesh;

the second material guide plate is located between the first material guide plate and the three-roller grinding machine and connected with the support frame, the second material guide plate is located between a rear roller and a front roller of the three-roller grinding machine, the width of the second material guide plate is larger than that of the first material guide plate, and the second material guide plate is used for bearing the slurry scraped by the scraper and conveying the slurry to a position between the rear roller and the front roller of the three-roller grinding machine.

2. The loading device of a three-roll grinder as claimed in claim 1, wherein the input end of the first material guide plate and the output end of the first material guide plate are at an included angle of 3-8 degrees with the horizontal plane.

3. The loading device of the three-roll grinder according to claim 1, wherein two side edges of the first stock guide are respectively provided with a striker plate.

4. The loading device of a three-roll grinder according to claim 1, wherein the cross section of the second material guide plate is in a W-shaped structure, and the second material guide plate comprises two symmetrically arranged material collecting grooves.

5. The loading device of a three-roll grinder according to claim 4, characterized in that a plurality of discharge holes are uniformly formed in each collecting groove.

6. The loading device of a three-roll grinder according to claim 4, wherein the second material guiding plate is symmetrical along the length direction thereof, and the material collecting groove on one side of the second material guiding plate forms an included angle of 1-3 degrees with the horizontal plane.

7. The three-roll grinder charging device according to claim 1, wherein the scraping assembly further comprises a limiting block, the limiting block is located between the scraper and the driving member and connected with the screw rod, and the limiting block is used for limiting the movement range of the scraper.

8. The three-roll mill charging device according to claim 1, characterized in that a wear resistant layer is attached to the end of the scraper.

9. The three-roll mill charging device according to claim 1, characterized in that the driving member is a servo motor.

10. The three-roll mill charging device according to claim 1, characterized in that the vibrating member is a linear vibrator.

Images