Three-roller crushing device for pigment raw materials

Abstract

The utility model discloses a three-roller crushing device for pigment raw materials, which comprises a crushing equipment shell, a crushing bin is arranged in the crushing equipment shell, two fixed supporting sheets are fixed at the bottom end of the crushing bin, one end of each fixed supporting sheet is close to the center of the crushing bin, and the other end of each fixed supporting sheet is close to the center of the crushing bin. A lifting electric telescopic rod is fixed to the upper surface of the end of the fixed supporting piece, a lifting strip is fixed to the top end of the lifting electric telescopic rod, a fixed vertical plate is fixed to the lifting strip, a plurality of first supporting pieces and second supporting pieces are fixed to the fixed vertical plate, and first scraping pieces facing the surface of the lateral smashing roller are fixed to the top ends of the first supporting pieces. A second scraping piece facing the surface of the middle smashing roller is fixed to the top end of the second supporting piece. Pigment raw material attachments attached to the outer portions of the three smashing rollers are cleaned and scraped, smashed pigment raw materials are fully collected, raw material waste caused by the fact that the pigment raw materials are attached to the outer portions of the smashing rollers is avoided, and meanwhile the situation that the smashing efficiency is affected due to the fact that the pigment raw materials are attached too thick is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pigment production and processing equipment, in particular to a three-roller crushing device for pigment raw materials. Background Art

[0002] Pigment refers to a substance that can dye an object with color. Pigments are divided into soluble and insoluble, and inorganic and organic. Inorganic pigments are generally mineral substances. Humans have known how to use inorganic pigments for a long time. They use colored soil and minerals to paint on rock walls and paint on their bodies. Organic pigments are generally taken from plants and marine animals, such as madder indigo, gamboge, and purple extracted from shellfish in ancient Rome. Pigments need to be crushed during production, and the crushing of pigment raw materials is carried out by crushing equipment.

[0003] For example, the patent publication number: CN 218516812 U discloses a raw material crushing device for producing art pigments, including a crusher body, a first feed port is provided at the top of the crusher body, a wide mouth is fixedly connected to the top of the first feed port, a first motor is fixedly connected to the upper right side of the inner wall of the crusher body, a first crushing roller is fixedly connected to the output end of the first motor through a first coupling, and a second crushing roller is meshedly connected to the rear of the first crushing roller. Although it is provided with a drying box, the crushed raw materials can be dried, thereby preventing the incompletely dried raw materials from clogging the crusher.

[0004] However, in actual operation, when the crushing roller crushes the pigment raw materials, some of the pigment raw materials adhere to the outer surface of the crushing roller during the crushing process, and the raw materials containing water will stick to it, which is not convenient to remove. On the one hand, if the raw materials are too thick, it will affect the crushing efficiency. On the other hand, it will cause loss of the pigment raw materials after crushing. When crushing different raw materials, the crushing roller above needs to be disassembled and cleaned, which is costly and laborious. Therefore, it does not meet the existing needs. In this regard, we propose a three-roller crushing device for pigment raw materials. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects and shortcomings of the prior art, provide a three-roller crushing device for pigment raw materials, and solve various problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A three-roller crushing device for pigment raw materials comprises a crushing equipment shell, a crushing bin is arranged inside the crushing equipment shell, a discharge port is penetrated through the bottom of the crushing bin, three crushing rollers are installed in the crushing bin, two fixed support plates are fixed to the bottom end of the crushing bin, one end of the fixed support plate is close to the center of the crushing bin, and a lifting electric telescopic rod is fixed to the upper surface of this end of the fixed support plate, a lifting bar is fixed to the top of the lifting electric telescopic rod, a fixed vertical plate is fixed on the lifting bar, a plurality of first support plates and second support plates are fixed on the fixed vertical plate, a first scraper blade facing the side crushing roller surface is fixed to the top of the first support plate, and a second scraper blade facing the middle crushing roller surface is fixed to the top of the second support plate.

[0008] The three crushing rollers are arranged with high on both sides and low in the middle. The crushing roller located in the middle and lower part rotates in the opposite direction and at the same speed as the crushing roller on one side. The crushing roller located on the other side rotates in the same direction as the crushing roller located in the middle and lower part and its speed is twice that of the crushing roller located in the middle and lower part. The three crushing rollers are driven by a gear box, and the gear box is driven by a stepper motor.

[0009] The first support sheet, the second support sheet, the first scraper sheet and the second scraper sheet are all made of spring steel. The first support sheet and the second support sheet are staggered at intervals and are respectively arranged to tilt outwards.

[0010] The top ends of the first and second support plates are curved toward both sides of the fixed vertical plate, the end of the first scraper blade close to the crushing roller is inclined upward, and the end of the second scraper blade close to the crushing roller is curved upward.

[0011] The first scraper blade and the second scraper blade are located between two adjacent crushing teeth on the outer surface of the corresponding crushing roller along the axis, and their width dimensions are the same as the spacing between two adjacent crushing teeth on the outer surface of the crushing roller along the axis.

[0012] Two material guide plates are detachably mounted on the inner side of the top end of the crushing bin, and the gap between the two material guide plates is smaller than or equal to the diameter of the crushing roller.

[0013] The side surface of the guide plate close to the middle of the crushing bin is inclined downward, and the inclined side edge of the guide plate is bent downward again and vertically downward.

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

[0015] 1. The utility model uses the first scraper and the second scraper fixed on the top of the first support sheet and the second support sheet to clean and scrape off the pigment raw material attached to the outside of the three crushing rollers, and fully collects the crushed pigment raw materials, thereby avoiding the pigment raw materials from being attached to the outside of the crushing rollers and causing the waste of raw materials, and at the same time avoiding the impact of too thick adhesion on the crushing efficiency, thereby improving the crushing efficiency;

[0016] 2. The first support sheet, the second support sheet, the first scraper blade and the second scraper blade of the utility model are all made of spring steel as raw material and have a certain elasticity, thereby ensuring that the first scraper blade and the second scraper blade can always fit the outer surface of the crushing roller to clean the outer surface of the crushing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the pulverizing roller of the utility model;

[0019] Figure 3 This is a structural sectional view of the shell of the pulverizing equipment of the utility model;

[0020] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0021] Figure 5 It is a distribution diagram of the first supporting sheet and the second supporting sheet of the utility model.

[0022] Reference numerals:

[0023] 1. Crushing equipment housing; 2. Crushing bin; 3. Crushing roller; 4. Discharge port; 5. Lifting electric telescopic rod; 6. Fixed support plate; 7. Lifting bar; 8. Fixed vertical plate; 9. First support plate; 10. Second support plate; 11. First scraper; 12. Second scraper; 13. Guide plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See attached Figure 1-5 ;

[0026] A three-roller pulverizing device for pigment raw materials comprises a pulverizing device housing 1, a pulverizing bin 2 is arranged inside the pulverizing device housing 1, a discharge port 4 is penetrated through the bottom of the pulverizing bin 2, three pulverizing rollers 3 are installed in the pulverizing bin 2, the pulverizing roller 3 located in the middle and lower part rotates in the opposite direction and at the same speed as the pulverizing roller 3 on one side, the pulverizing roller 3 located on the other side rotates in the same direction as the pulverizing roller 3 located in the middle and lower part and its speed is twice that of the pulverizing roller 3 located in the middle and lower part, the three pulverizing rollers 3 are driven by a gear box, and the gear box is driven by a stepping motor to ensure that the pigment raw materials pass through between two adjacent pulverizing rollers 3, so as to smoothly complete the pulverization of the pigment raw materials.

[0027] Two fixed support plates 6 are fixed to the bottom end of the crushing bin 2, one end of the fixed support plate 6 is close to the center of the crushing bin 2, and a lifting electric telescopic rod 5 is fixed to the upper surface of this end of the fixed support plate 6, a lifting bar 7 is fixed to the top of the lifting electric telescopic rod 5, a fixed vertical plate 8 is fixed to the upper surface of the lifting bar 7, and a plurality of first support plates 9 and second support plates 10 are fixed to the upper surface of the fixed vertical plate 8, a first scraper 11 is fixed to the top of the first support plate 9, and a second scraper 12 is fixed to the top of the second support plate 10. The lifting electric telescopic rod 5 is used to control the movement of the lifting bar 7, the fixed vertical plate 8, the first support plate 9 and the second support plate 10, so that the first scraper 11 and the second scraper 12 are attached to the bottom surface of the crushing roller 3, so that the first scraper 11 and the second scraper 12 are used to remove the attachments on the outer surface of the rotating crushing roller 3. The lifting electric telescopic rod here can also be equipped with a telescopic protective cover as needed (the structure of the two sets of matching protective guide sleeves, because the lifting electric telescopic rod 5 is only cleaned, so the usage rate is low and will not affect the heat dissipation). Without affecting the lifting effect, it can ensure that the crushed raw material particles in the crushing process are completely guided out to the discharge port to avoid sticking to the lifting electric telescopic rod 5 and affecting the discharge port.

[0028] The first support sheet 9, the second support sheet 10, the first scraper blade 11 and the second scraper blade 12 are all made of spring steel. The first support sheet 9 and the second support sheet 10 are fitted together and staggered. The top ends of the first support sheet 9 and the second support sheet 10 are curved toward the two sides of the fixed vertical plate 8. The end of the first scraper blade 11 close to the crushing roller 3 is inclined upward, and the end of the second scraper blade 12 close to the crushing roller 3 is curved upward. The first support sheet 9, the second support sheet 10, the first scraper blade 11 and the second scraper blade 12 are elastic and can smoothly contact with the outer surface of the crushing roller 3 elastically, thereby ensuring that the first scraper blade 11 and the second scraper blade 12 are in close contact with the outer surface of the crushing roller 3.

[0029] Since the convex teeth on a general crushing roller are distributed regularly on the roller surface, the present application adopts the most common array distribution. Therefore, when designing the first support sheet 9, the second support sheet 10, the first scraper blade 11, and the second scraper blade 12, a setting that follows a common rule can be adopted, namely: the width dimensions of the first support sheet 9, the second support sheet 10, the first scraper blade 11, and the second scraper blade 12 are the same, and the width dimensions of the first support sheet 9, the second support sheet 10, the first scraper blade 11, and the second scraper blade 12 are the same as the spacing between two adjacent crushing teeth distributed along the axis on the outer surface of the crushing roller 3. The first scraper blade 11 and the second scraper blade 12 are located between two adjacent crushing teeth distributed along the axis on the outer surface of the crushing roller 3. After the first scraper blade 11 and the second scraper blade 12 are attached to the outer surface of the crushing roller 3, it is ensured that during the rotation of the crushing roller 3, the crushing teeth on the outer surface of the crushing roller 3 will not contact the first scraper blade 11 and the second scraper blade 12.

[0030] like Figure 1 and Figure 2 As shown, two guide plates 13 are detachably installed on the inner side of the top of the crushing bin 2, and the gap between the two guide plates 13 is less than or equal to the diameter of the crushing roller 3. The side of the guide plate 13 maintained close to the middle of the crushing bin 2 is inclined downward, and the inclined side of the guide plate 13 is bent downward again and vertically downward. The two crushing bins 2 are used to guide the pigment raw materials to be crushed to between the three crushing rollers 3, ensuring that the three rotating crushing rollers 3 can smoothly crush the pigment raw materials.

[0031] Working principle: When the pigment raw materials are crushed, first turn on the power of the device. After the power is turned on, the three crushing rollers 3 rotate under the drive structure of the crusher. During the rotation, the crushing teeth on the outer surfaces of the three crushing rollers 3 pass through each other, and then the pigment raw materials are added into the crushing bin 2 through the gap between the two guide plates 13. The pigment raw materials entering the crushing bin 2 are squeezed and crushed by the three crushing rollers 3. After crushing, the pigment raw materials fall to the bottom of the crushing bin 2 and are discharged from the crushing equipment shell 1 along the discharge port 4. In the process of crushing the pigment raw materials, the crushing rollers 3 squeeze and crush the pigment raw materials, and part of the raw materials adhere to the outer surface of the crushing rollers 3. If the raw materials adhere to the outer surface of the crushing rollers 3 have no outer surface, The pigment raw materials will not fall due to force interference. After the pigment raw materials are crushed, the lifting electric telescopic rod 5 drives the lifting bar 7 and the fixed vertical plate 8 to move upward, so that the first support piece 9 and the second support piece 10 drive the first scraper 11 and the second scraper 12 to move upward until the first scraper 11 at the top of the first support piece 9 and the second scraper 12 at the top of the second support piece 10 are attached to the outer surface of the crushing roller 3. Due to the rotation of the crushing roller 3, the pigment raw materials on the outer surface of the crushing roller 3 are scraped off from the outer surface of the crushing roller 3 by the first scraper 11 and the second scraper 12 when passing through the first scraper 11 and the second scraper 12, so as to fully collect the crushed pigment raw materials and avoid the pigment raw materials adhering to the outside of the crushing roller and causing raw material waste.

[0032] As for the frequency of cleaning, it can also be reasonably set according to the degree of adhesion of the raw materials.

[0033] Moreover, the material of the scraper in this application has also been tested. Choosing spring steel as the scraper material has the following advantages:

[0034] Good elasticity: Spring steel has good elasticity, which means that during use, the scraper can adapt to different surfaces, providing better fit and scraping effect.

[0035] Moderate hardness: Spring steel has moderate hardness, which can keep the blade sharp while not easily breaking or damaging.

[0036] This is very important for scrapers, as they need to scrape against hard surfaces.

[0037] Strong wear resistance: Spring steel has high wear resistance and can maintain good performance after long-term use, which is an important advantage for scrapers that need to be used frequently.

[0038] Strong fatigue resistance: Spring steel has good fatigue resistance, which means that even under long-term use and repeated stress, the scraper will not easily lose its elasticity or undergo permanent deformation.

[0039] Good corrosion resistance: Spring steel can provide good corrosion resistance, so that the scraper can maintain a good service life even in humid or corrosive environments.

[0040] Therefore, spring steel as a scraper material can provide good elasticity, hardness, wear resistance, fatigue resistance and corrosion resistance, so that the scraper can perform well under various conditions of use.

[0041] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0042] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A three-roller pulverizing device for pigment raw materials, comprising a pulverizing device housing (1), a pulverizing chamber (2) being provided inside the pulverizing device housing (1), a discharge port (4) being provided through the bottom of the pulverizing chamber (2), and characterized in that: Three crushing rollers (3) are installed in the crushing bin (2), and two fixed support plates (6) are fixed to the bottom end of the crushing bin (2), one end of the fixed support plate (6) is close to the center of the crushing bin (2), and a lifting electric telescopic rod (5) is fixed to the upper surface of this end of the fixed support plate (6), a lifting bar (7) is fixed to the top of the lifting electric telescopic rod (5), a fixed vertical plate (8) is fixed to the top of the lifting bar (7), and a plurality of first support plates (9) and second support plates (10) are fixed to the top of the fixed vertical plate (8), a first scraper (11) facing the side crushing roller surface is fixed to the top of the first support plate (9), and a second scraper (12) facing the middle crushing roller surface is fixed to the top of the second support plate (10).

2. A three-roller pulverizing device for pigment raw materials according to claim 1, characterized in that: The three crushing rollers (3) are arranged in a high-high configuration on both sides and a low-low configuration in the middle; the crushing roller (3) located in the middle and lower part rotates in the opposite direction to the crushing rollers (3) on one side and has the same rotation speed; the crushing roller (3) located on the other side rotates in the same direction as the crushing roller (3) located in the middle and lower part and has a rotation speed twice that of the crushing roller (3) located in the middle and lower part; the three crushing rollers (3) are driven by a gear box, and the gear box is driven by a stepping motor.

3. A three-roller pulverizing device for pigment raw materials according to claim 1, characterized in that: The first support sheet (9), the second support sheet (10), the first scraper sheet (11) and the second scraper sheet (12) are all made of spring steel. The first support sheet (9) and the second support sheet (10) are arranged in a plurality of intervals, staggered with each other and tilted outwards.

4. A three-roller pulverizing device for pigment raw materials according to claim 3, characterized in that: The top ends of the first support sheet (9) and the second support sheet (10) are curved toward both sides of the fixed vertical plate (8), the end of the first scraper (11) close to the crushing roller (3) is inclined upward, and the end of the second scraper (12) close to the crushing roller (3) is curved upward.

5. A three-roller pulverizing device for pigment raw materials according to claim 4, characterized in that: The first scraper blade (11) and the second scraper blade (12) are located between two adjacent crushing teeth distributed along the axis on the outer surface of the corresponding crushing roller (3), and their width dimensions are the same as the spacing between two adjacent crushing teeth distributed along the axis on the outer surface of the crushing roller (3).

6. A three-roller pulverizing device for pigment raw materials according to claim 1, characterized in that: Two material guide plates (13) are detachably mounted on the inner side of the top end of the crushing bin (2), and the gap between the two material guide plates (13) is smaller than or equal to the diameter of the crushing roller (3).

7. A three-roller pulverizing device for pigment raw materials according to claim 6, characterized in that: The side surface of the guide plate (13) close to the middle of the crushing bin (2) is inclined downward, and the inclined side edge of the guide plate (13) is bent downward again and vertically downward.

Images