Cleaning device for grinding rollers of a three-roll mill

Abstract

The utility model relates to material grinding field discloses a kind of grinding roller cleaning devices for three-roll grinder, including three groups of installation slot, which are oppositely arranged on the inner wall of the two sides of grinder and located directly above grinding roller, "L" type or "T" type substrate inserted in one of installation slot, scraper assembly slidingly arranged on one side of substrate and wiping assembly hinged on the other side of substrate;Scraper assembly includes scraper body and adjusting screw rod, scraper body is slidably arranged on the side of substrate, adjusting screw rod is threadedly penetrated through the top plate of substrate and rotationally connected with scraper body;Wiping assembly includes fixed support hinged with the side of substrate, pressing plate arranged on fixed support, flannel pasted on the bottom surface of pressing plate and tension spring with two ends connected with substrate and fixed support respectively.The utility model can simply, safely and efficiently clean the grinding roller, improve the cleaning efficiency, reduce the labor intensity, and also eliminate the existing safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of material grinding, and in particular to a grinding roller cleaning device for a three-roll mill. Background Technology

[0002] A three-roll mill, also known simply as a three-roll mill, can be divided into two types: experimental three-roll mills and production three-roll mills. It is suitable for manufacturing pastes such as paints, inks, and pigments. The working principle of a three-roll mill is that the grinding effect is achieved through the mutual compression and friction at different speeds of the surfaces of three horizontal grinding rollers. It is the most effective grinding and dispersing equipment for high-viscosity materials.

[0003] Currently, three-roll mills require manual cleaning of the grinding rollers after grinding. The cleaning process involves the operator first scraping off the material adhering to the grinding rollers with a scraper, and then wiping away any remaining material with a cloth. This cleaning method suffers from low efficiency and high labor intensity. Furthermore, since the three-roll mill is running during the cleaning process, there is a risk that the cloth may get caught in the grinding rollers during wiping, potentially causing injury to the operator, thus posing a safety hazard.

[0004] Based on this, this application provides a simple, safe and efficient grinding roller cleaning device for a three-roll mill to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the technical problems existing in the prior art. To this end, the present invention provides a simple, safe and efficient cleaning device for the grinding rollers of a three-roll mill.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A cleaning device for a grinding roller in a three-roll mill is provided, comprising three sets of mounting slots arranged in pairs on the inner walls of both sides of the mill, directly above the grinding rollers; an "L"-shaped or "T"-shaped substrate inserted into one set of mounting slots; a scraper assembly slidably disposed on one side of the substrate; and a wiping assembly hinged to the other side of the substrate. The scraper assembly includes a scraper body and an adjusting screw. The scraper body is slidably disposed on the side of the substrate, and the adjusting screw is threaded through the top plate of the substrate and rotatably connected to the scraper body. The wiping assembly includes a fixed bracket hinged to the side of the substrate, a pressure plate disposed on the fixed bracket, a velvet cloth pasted to the bottom surface of the pressure plate, and tension springs connecting the substrate and the fixed bracket at both ends.

[0008] In some alternative embodiments, the top of the scraper body is provided with a corner strip, and guide rods are fixedly installed at both ends of the top plate of the corner strip. The guide rods movably pass through the top plate of the substrate, and a spring is fitted on the guide rod between the corner strip and the top plate of the substrate.

[0009] In some alternative embodiments, the adjusting screw is located in the middle of the top plate of the base plate, and its bottom end is rotatably connected to the top plate of the corner strip by a retaining spring. The top of the adjusting screw is provided with a quincunx-shaped handle.

[0010] In some alternative embodiments, the scraper body is L-shaped with an arc-shaped groove on its inner side.

[0011] In some alternative embodiments, the pressure plate is configured as an arc-shaped plate that matches the grinding roller.

[0012] In some alternative implementations, the fleece is attached to the bottom surface of the pressure plate via Velcro.

[0013] In some alternative implementations, the lengths of both the scraper body and the pressure plate are matched to the grinding width of the grinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention can first use a scraper assembly to scrape off the material adhering to the surface of the grinding roller, and then use a wiping assembly to remove the residual material on the surface of the grinding roller to achieve the purpose of cleaning. The scraper assembly and wiping assembly are simple and safe to operate, and are highly efficient in cleaning the grinding roller, improving cleaning efficiency, reducing labor intensity, and eliminating potential safety hazards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a diagram showing the installation structure of the cleaning device provided by this utility model on a three-roll mill;

[0018] Figure 2 This is a front perspective view of the cleaning device provided by this utility model;

[0019] Figure 3 This is a three-dimensional view of the back of the cleaning device provided by this utility model;

[0020] Figure 4This is a diagram showing the usage status of the cleaning device provided by this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1—Mounting groove, 2—Base plate, 2.1—Top plate, 3—Scraper assembly, 3.1—Scraper body, 3.1.1—Arc-shaped groove, 3.2—Adjusting screw, 3.3—Angle strip, 3.4—Guide rod, 3.5—Spring, 3.6—Plum blossom-shaped handle, 4—Wiping assembly, 4.1—Fixed bracket, 4.1.1—Extension handle, 4.2—Pressure plate, 4.3—Flannel cloth, 4.4—Tension spring, 10—Grinding machine, 20—Grinding roller. Detailed Implementation

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," etc., used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. The terms "installed," "connected," and "joined" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] Example 1

[0029] This embodiment provides a grinding roller cleaning device for a three-roll mill, including a mounting groove 1, an "L"-shaped or "T"-shaped base plate 2, a scraper assembly 3, and a wiping assembly 4, wherein:

[0030] As shown in Figure 1, the mounting groove 1 has three sets of symmetrically arranged in pairs, which are located on the inner walls of both sides of the grinder 10 and directly above the grinding roller 20. Preferably, the central axis of the mounting groove 1 and the axis of the grinding roller 20 are on the same plane. The mounting groove serves as a positioning component for the installation of the cleaning device.

[0031] As attached Figure 2 To be continued Figure 4 As shown, the "L"-shaped or "T"-shaped substrate 2 is inserted into one of the mounting slots 1 and is limited by the top plate 2.1 of the substrate 2. In this embodiment, an "L"-shaped substrate is used for the substrate 2, but a "T"-shaped substrate can also be used in other embodiments. The substrate 2 serves as the mounting base for the scraper assembly 3 and the wiping assembly 4. The scraper assembly 3 is slidably disposed on one side of the substrate 2, and the wiping assembly 4 is hinged to the other side of the substrate 2.

[0032] As attached Figure 2 and attached Figure 4 As shown, the scraper assembly 3 in this embodiment includes a scraper body 3.1 and an adjusting screw 3.2. The scraper body 3.1 is slidably disposed on the side of the substrate 1, and the adjusting screw 3.2 is threaded through the top plate 2.1 of the substrate 2 and rotatably connected to the scraper body 3.1. In this embodiment, the scraper assembly can be moved up and down by adjusting the screw, thereby controlling the scraper to move closer to or away from the grinding roller. By controlling the contact between the scraper and the grinding roller, the material adhering to the grinding roller can be scraped off.

[0033] To improve the scraping effect, in this embodiment, the scraper body 3.1 is preferably designed as an "L" shape, and an arc-shaped groove 3.1.1 is provided on its inner side, which can accommodate more scraped material.

[0034] In a preferred embodiment, a corner strip 3.3 is provided between the scraper body 3.1 and the top plate 2.1 of the substrate 2. The scraper body 3.1 is fixed to the corner strip 3.3 by multiple screws. Guide rods 3.4 are fixedly installed at both ends of the top plate of the corner strip 3.3. The guide rods 3.4 movably pass through the top plate 2.1 of the substrate 2, and a spring 3.5 is fitted on the guide rod 3.4 between the corner strip 3.3 and the top plate 2.1 of the substrate 2. An adjusting screw 32 is located in the middle of the top plate 2.1 of the substrate 2, and its bottom end is rotatably connected to the top plate of the corner strip 3.3 by a retaining spring. The top of the adjusting screw 3.2 is provided with a cloverleaf-shaped handle 3.6. In this embodiment, the adjusting screw can be controlled to move downward by rotating the cloverleaf-shaped handle, thereby controlling the scraper body to move towards the grinding roller. When it contacts the grinding roller, the rotation of the cloverleaf-shaped handle stops. Figure 4 As shown, the material adhering to the surface of the grinding roller can be scraped off by the scraper body at this time; the springs at both ends of the scraper body can provide a downward pressure at both ends of the scraper body, which improves the scraping effect of the grinding roller on the material at both ends. After the scraping is completed, the plum blossom-shaped handle is rotated in the opposite direction to make the scraper body move upward and away from the grinding roller.

[0035] As attached Figure 3 and attached Figure 4 As shown, the wiping assembly 4 in this embodiment includes a fixed bracket 4.1 hinged to the side of the substrate 2, a pressure plate 4.2 disposed on the fixed bracket, a velvet cloth 4.3 adhered to the bottom surface of the pressure plate, and tension springs 4.4 connecting the substrate and the fixed bracket at both ends respectively. In this embodiment, the fixed bracket 4.1 has an extension handle 4.1.1 at the end furthest from the substrate for easy operation. Working principle: Under normal conditions, the fixed bracket is held in place by the tension spring, and the pressure plate is furthest from the grinding roller. After the material adhering to the grinding roller is scraped off by the scraper body, the operator presses down on the fixed bracket, causing the pressure plate to rotate towards the grinding roller until the velvet cloth contacts the surface of the grinding roller, as shown in the attached image. Figure 4 As shown.

[0036] In order to increase the contact area between the velvet cloth and the grinding roller, in this embodiment, the pressure plate 4.2 is preferably set as an arc-shaped plate that matches the grinding roller 20, and the velvet cloth 4.3 is connected to the bottom surface of the pressure plate 4.2 by Velcro. The velvet cloth and the pressure plate are detachable, which facilitates quick replacement of the velvet cloth and ensures the cleaning effect.

[0037] It is worth noting that the lengths of the scraper body and the pressure plate in this embodiment are matched with the grinding width of the grinder to ensure that the cloth on the scraper body and the pressure plate can completely cover the grinding area of ​​the grinding roller and ensure the cleaning effect.

[0038] This embodiment features three sets of mounting slots and only one cleaning device. During normal operation of the three-roll mill, the cleaning device can be detached. When cleaning is required, the cleaning device can be installed one by one into the mounting slot above each grinding roller to clean it. In other embodiments, the three sets of mounting slots can also be configured with three cleaning devices, each responsible for cleaning one grinding roller, thus improving cleaning efficiency.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A grinding roller cleaning device for a three-roll mill, characterized in that: It includes three sets of mounting slots arranged in pairs on the inner walls of both sides of the grinding machine, located directly above the grinding rollers; an "L"-shaped or "T"-shaped substrate inserted into one of the mounting slots; a scraper assembly slidably disposed on one side of the substrate; and a wiping assembly hinged to the other side of the substrate. The scraper assembly includes a scraper body and an adjusting screw. The scraper body is slidably disposed on the side of the substrate, and the adjusting screw is threaded through the top plate of the substrate and rotatably connected to the scraper body. The wiping assembly includes a fixed bracket hinged to the side of the substrate, a pressure plate disposed on the fixed bracket, a velvet cloth pasted on the bottom surface of the pressure plate, and tension springs connecting the substrate and the fixed bracket at both ends respectively.

2. The grinding roller cleaning device for a three-roll mill according to claim 1, characterized in that: The top of the scraper body is provided with a corner strip, and guide rods are fixedly installed at both ends of the top plate of the corner strip. The guide rods movably pass through the top plate of the substrate, and a spring is fitted on the guide rod between the corner strip and the top plate of the substrate.

3. The grinding roller cleaning device for a three-roll mill according to claim 2, characterized in that: The adjusting screw is located in the middle of the top plate of the base plate, and its bottom end is rotatably connected to the top plate of the corner strip by a retaining spring. The top of the adjusting screw is provided with a plum blossom-shaped handle.

4. The grinding roller cleaning device for a three-roll mill according to any one of claims 1 to 3, characterized in that: The scraper body is L-shaped, and its inner side is provided with an arc-shaped groove.

5. The grinding roller cleaning device for a three-roll mill according to claim 1, characterized in that: The pressure plate is designed to be an arc-shaped plate that matches the grinding roller.

6. The grinding roller cleaning device for a three-roll mill according to claim 1 or 5, characterized in that: The velvet is connected to the bottom surface of the pressure plate via Velcro.

7. The grinding roller cleaning device for a three-roll mill according to claim 1, characterized in that: The lengths of the scraper body and the pressure plate are both matched with the grinding width of the grinding machine.

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