Feeding mechanism of three-roller grinding machine

Abstract

The utility model provides a feeding mechanism of a three-roller grinding machine, and relates to the technical field of pigment manufacturing. The number of the bearing pieces is set to be two, three sets of rollers are accurately arranged above the bearing pieces and are the rear roller, the middle roller and the front roller in sequence from front to back, connecting rods are correspondingly arranged in gaps reserved in the front sides of the three sets of rollers, the upper portions of the connecting rods are stably connected with annular rods, and the annular rods are connected with the upper portions of the annular rods. An annular rod is arranged on the upper portion of the feeding hopper and connected with the two sides of the feeding hopper respectively, a top cover is further arranged above the feeding hopper, an opening is specially formed in the front side of the top cover, and a feeding opening used for feeding operation is formed in the position, corresponding to the feeding hopper, of the front side of the position where the opening is located. And the printing ink adhering to the inner wall can be scraped off, material loss is reduced, and the problems that during feeding of existing equipment, the printing ink adheres to the inner wall of the feeding hopper, the discharging flowability is affected, and materials are wasted are solved.

Description

Technical Field

[0001] This utility model belongs to the field of pigment manufacturing technology, and more specifically, it relates to a feeding mechanism for a three-roll mill. Background Technology

[0002] The ink grinding process is of paramount importance. Its core purpose is to fully disperse pigment aggregates into the binder, thereby forming a dispersion composed of fine particles. The color and optical properties of ink are largely determined by the degree of pigment dispersion. This is because the size of pigment particles directly affects many key characteristics of ink, such as saturation and hue. Through grinding, ink can be significantly improved in several aspects, such as color vibrancy, gloss, hiding power, and adhesion, while its rheological properties and stability are also optimized. These improvements enable the ink to exhibit superior performance in subsequent coating and printing processes, thus meeting various process requirements. However, during the ink feeding stage, some ink often adheres to the inner wall of the feeding hopper. This phenomenon not only adversely affects the flowability of the ink during feeding, leading to uneven feeding, but also results in material waste, hindering efficient ink utilization, increasing production costs, and creating obstacles to the smooth progress of subsequent processes. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a feeding mechanism for a three-roll mill, which solves the problem that ink adheres to the inner wall of the feeding hopper when feeding on existing equipment, which affects the flowability of the material and leads to material waste.

[0004] The feeding mechanism of this utility model for a three-roll mill is achieved by the following specific technical means:

[0005] A feeding mechanism for a three-roll mill includes: a support member; the number of the support members is set to two sets, and three sets of rollers are precisely arranged above the support members, in the order of front to back: rear roller, middle roller and front roller. Connecting rods are correspondingly provided in the gaps reserved on the front side of the three sets of rollers, and annular rods are firmly connected above each connecting rod. The annular rods are respectively connected to the two sides of the feeding hopper. A top cover is also provided above the feeding hopper. The front side of the top cover is specially provided with an opening, and a feeding port for feeding operation is provided on the feeding hopper part corresponding to the position of the opening.

[0006] Furthermore, the feeding hopper is precisely positioned on the upper side between the rear roller and the intermediate roller. A threaded fixing rod is provided at the lower end of the connecting rod. A positioning plate is provided at the connection between the threaded fixing rod and the connecting rod. A fixing nut is threadedly connected to the threaded fixing rod. The lower end of the feeding hopper is connected to the bottom plate of the hopper. A discharge port that runs vertically through the bottom plate of the hopper is provided.

[0007] Furthermore, a threaded rod is provided inside the discharge port. The diameter of the threaded rod is consistent with the diameter of the discharge port. The upper end of the threaded rod extends into the interior of the feeding hopper and is connected to the drive shaft. The drive shaft passes through the top cover and is then connected to the drive motor.

[0008] Furthermore, two sets of side scrapers are installed on both sides of the inner wall of the feeding hopper. The front side scraper has a locking plate at its front inner edge, and the rear side scraper also has a locking plate at its rear inner edge. Both sides of the outer wall of the feeding hopper are equipped with external control plates. The upper ends of the side scrapers and the external control plates are connected to each other, and the upper end of the outer side of the external control plates is connected to a control ring.

[0009] Furthermore, scraper plates are provided on both the front and rear sides of the inner wall of the feeding hopper. Two sets of return springs are provided on the upper side of the scraper plates. The upper end of the return spring on the rear side is connected to the top cover, and the return spring on the front side is connected to the bottom plate of the feeding port. Two sets of control ropes are connected to the lower side of the scraper plates. These control ropes first pass through the upper side of the bottom plate of the hopper, then pass through the side of the bottom plate of the hopper, and finally connect to the pull ring.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The unique advantage of this utility model, through the setting of a threaded rod and a drive motor, is that it can effectively improve the fluidity of the ink during the ink feeding operation, creating favorable conditions for the smooth progress of the feeding work; at the same time, with the corresponding structural design and functional coordination, it can also play a positive role in preventing possible clogging problems, ensuring that the entire feeding process can proceed smoothly and continuously, avoiding feeding interruptions caused by clogging, and effectively guaranteeing the orderly connection and efficient operation of related production links.

[0012] 2. This utility model, by setting up a side scraper and a scraper plate, allows the side scraper to play a crucial role in the final stage of the feeding process. Through proper operation, it can precisely scrape off the ink tightly adhering to the side wall of the feeding hopper, causing it to collect on the front and rear sides of the inner wall of the feeding hopper. Simultaneously, the positioning plate equipped on the side scraper also works in concert to precisely position the scraper plate, ensuring it is in the optimal working position. Subsequently, the operator can skillfully control the scraper plate to move downwards by pulling the control rope, further scraping off the ink still adhering to the inner wall. This series of orderly and closely coordinated operations minimizes ink residue on the inner wall of the feeding hopper, avoids unnecessary ink loss, effectively improves ink utilization, and overall helps reduce ink waste, achieving rational resource utilization and effective cost control. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 4 This is a schematic diagram of the scraper structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the side scraper structure of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Connecting rod; 101. Threaded fixing rod;

[0020] 2. Ring-shaped rod;

[0021] 3. Feeding hopper;

[0022] 4. Top cover;

[0023] 5. Side scraper; 501. External control board; 5011. Positioning plate; 502. Control ring;

[0024] 6. Drive shaft;

[0025] 7. Threaded rod;

[0026] 8. Drive motor;

[0027] 9. Feed inlet;

[0028] 10. Positioning plate;

[0029] 11. Rear roller; 1101. Intermediate roller; 1102. Front roller;

[0030] 12. Hopper bottom plate; 1201. Discharge port;

[0031] 13. Scraper blade; 1301. Return spring; 1302. Control rope; 1303. Pull ring;

[0032] 14. Load-bearing components. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] Example:

[0035] As attached Figure 1 To be continued Figure 5 As shown:

[0036] This utility model provides a feeding mechanism for a three-roll mill, including: a support member 14; the number of support members 14 is set to two sets, and three sets of rollers are precisely arranged above the support members 14, in the order from front to back: rear roller 11, middle roller 1101 and front roller 1102. Connecting rods 1 are respectively provided in the gaps reserved on the front side of these three sets of rollers, and annular rods 2 are firmly connected above each connecting rod 1. The annular rods 2 are respectively connected to the two sides of the feeding hopper 3. A top cover 4 is also provided above the feeding hopper 3. The front side of the top cover 4 is specially provided with an opening, and a feeding port 9 for feeding operation is provided on the feeding hopper 3 corresponding to the position of the opening.

[0037] Among them, such as Figure 2 and Figure 3 As shown, the feeding hopper 3 is precisely positioned on the upper side between the rear roller 11 and the intermediate roller 1101. A threaded fixing rod 101 is provided at the lower end of the connecting rod 1. A positioning plate 10 is provided at the connection between the threaded fixing rod 101 and the connecting rod 1. A fixing nut is threadedly connected to the threaded fixing rod 101. The lower end of the feeding hopper 3 is connected to the bottom plate 12 of the hopper. The bottom plate 12 of the hopper has a through-hole 1201. A threaded rod 7 is provided inside the 1201. The diameter of the threaded rod 7 is consistent with the diameter of the 1201. The upper end of the threaded rod 7 extends into the interior of the feeding hopper 3 and is connected to the drive shaft 6. The drive shaft 6 passes through the top cover 4 and is further connected to the drive motor 8. This helps to enhance the fluidity of the ink during ink feeding and prevent clogging.

[0038] Among them, such as Figure 4 and Figure 5 As shown, two sets of side scrapers 5 are installed on both sides of the inner wall of the feeding hopper 3. The front side scraper 5 has a locking plate 5011 at its front inner edge, and the rear side scraper 5 also has a locking plate 5011 at its rear inner edge. Both sides of the outer wall of the feeding hopper 3 are equipped with external control plates 501. The upper ends of the side scrapers 5 and the external control plates 501 are connected to each other. The upper end of the outer side of the external control plates 501 is connected to a control ring 502. Scrapers 13 are installed on both the front and rear sides of the inner wall of the feeding hopper 3. Two sets of return springs 1301 are installed on the upper side of the scraper 13. The upper end of the rear return spring 1301 is connected to the top cover. The four-phase connection includes a return spring 1301 at the front, which is connected to the bottom plate of the feed inlet 9. Two sets of control ropes 1302 are connected to the lower side of the scraper 13. These control ropes 1302 first pass through the upper side of the hopper bottom plate 12, then pass through the side of the hopper bottom plate 12, and finally connect to the pull ring 1303. At the end of the feeding stage, the side scraper 5 is controlled to scrape the material adhering to the side wall of the feed hopper 3 to the front and rear sides of the inner wall of the feed hopper 3. At the same time, the positioning plate 5011 on the side scraper 5 positions the scraper 13. Pulling the control ropes 1302 controls the scraper 13 to move down and scrape off the adhering ink, which helps to reduce material waste.

[0039] The specific usage and function of this embodiment are as follows:

[0040] In this utility model, the threaded fixing rod 101 passes through the pre-reserved mounting hole on the bearing member 14. The threaded fixing rod 101 passes through the mounting hole, and the fixing nut is tightened to fix the feeding mechanism. The ink is added into the feeding hopper 3 through the feeding port 9. The speed of the drive motor 8 is set according to the viscosity and other characteristics of the ink. Under the action of the drive motor 8, the threaded rod 7 drives the ink to be fed between the rear roller 11 and the intermediate roller 1101. The grinding roller grinds the ink. When the entire feeding process enters the final stage, the two sets of side scrapers 5 on the front side are controlled to slide forward and the side scrapers 5 on the rear side are controlled to slide backward, scraping the ink adhering to the inner wall of the side to the front and rear sides of the inner wall. The clamping plate 5011 is clamped above the scraper plate 13. The scraper plate 13 is pulled down to scrape the adhering ink into the feeding hopper 3, and then the threaded rod 7 sends it out of the feeding hopper 3.

[0041] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A feeding mechanism of a three-roll mill, comprising: Bearing (14); characterized in that: the number of bearing (14) is set to two groups, accurate layout of three groups of rollers above the bearing (14), in order from front to back, in turn, the rear roller (11), the middle roller (1101) and the front roller (1102), the gap reserved in front of the three groups of rollers is correspondingly provided with connecting rod (1), and the upper side of each connecting rod (1) is stably connected with annular rod (2), which is connected with both sides of the feeding hopper (3) respectively, and the top cover (4) is also provided above the feeding hopper (3), the front side of the top cover (4) is specially provided with an opening, and the part of the feeding hopper (3) corresponding to the position of the opening is provided with a feeding port (9) for feeding operation.

2. The feeding mechanism of a three-roll mill according to claim 1, characterized in that: The feeding hopper (3) is accurately placed between the rear roller (11) and the middle roller (1101) on the upper side, the lower end of the connecting rod (1) is provided with a threaded fixing rod (101), a positioning plate (10) is arranged at the connecting position of the threaded fixing rod (101) and the connecting rod (1), a fixing nut is threadedly connected on the threaded fixing rod (101), the lower end of the feeding hopper (3) is connected with the hopper bottom plate (12), and the hopper bottom plate (12) is provided with a discharging port (1201) penetrating through the upper and lower sides.

3. The feeding mechanism of a three-roll mill according to claim 1, characterized in that: The inside of the discharging port (1201) is provided with a threaded rod (7), the diameter of the threaded rod (7) is consistent with the diameter of the discharging port (1201), the upper end of the threaded rod (7) extends to the inside of the feeding hopper (3), and the upper end thereof is connected with the driving shaft (6), the driving shaft (6) penetrates through the top cover (4) in turn, and is further connected with the driving motor (8).

4. The feeding mechanism of a three-roll mill according to claim 1, characterized in that: Both sides of the inner wall of the feeding hopper (3) are provided with two groups of side scrapers (5), the front side of the side scraper (5) is provided with a clamping plate (5011) at the inner side edge of the front side, the rear side of the side scraper (5) is also provided with a clamping plate (5011) at the inner side edge of the rear side, both sides of the outer wall of the feeding hopper (3) are provided with an external control panel (501), the side scraper (5) and the upper end of the external control panel (501) are connected with each other, and the upper end of the external control panel (501) is connected with a control ring (502) outside.

5. The feeding mechanism of a three-roll mill according to claim 1, wherein: The front and rear sides of the inner wall of the feeding hopper (3) are provided with a scraping plate (13), two groups of return springs (1301) are arranged on the upper side of the scraping plate (13), the upper end of the return spring (1301) on the rear side is connected with the top cover (4), the return spring (1301) on the front side is connected below the bottom plate of the feeding port (9), and the lower side of the scraping plate (13) is connected with two groups of control ropes (1302) respectively, the control ropes (1302) first penetrate through the upper side of the hopper bottom plate (12), then pass out of the side of the hopper bottom plate (12), and finally are connected to a pull ring (1303).

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