A double roll mill for color master batch production

Abstract

The utility model discloses a double roll mill for color master batch production relates to color master batch production equipment technical field, including the shell, the shell top bushing installation has the feed pipe, and the shell inner wall both sides all fixedly installed with the inner shell, two the inner shell opposite side all fixedly installed with the guide plate, the guide plate is inclined to set, the shell rear side is installed with two motor, two the motor's front side output all installed have the roller assembly, be provided with cutter and screw rod, after replacing the roller cover, according to the position of cutter adjustment cutter according to the outer diameter of roller cover, let cutter adhere on the outer wall of roller cover, at this moment can rotate hand wheel, make hand wheel drive screw rod rotate, and screw rod drives movable plate to remove, and movable plate drives cutter to remove, after cutter removes and adheres on the outer wall of roller cover, no longer rotate hand wheel, and when the subsequent roller cover stress rotates, can realize self clean scraping under the cooperation of cutter, avoid color master batch powder adhesion, influence the follow -up work.

Description

Technical Field

[0001] This utility model specifically relates to a two-roll mill for color masterbatch production, belonging to the technical field of color masterbatch production milling equipment. Background Technology

[0002] In the plastics processing flow, masterbatch mixing is a crucial step. Its core principle lies in using an open mill to mix the masterbatch. The key component of the open mill is two opposing rotating rollers. When the masterbatch is placed between the rollers, it's like food entering a grinder. During the rotation of the rollers, various forces such as compression, shearing, and friction are applied to the masterbatch, thereby achieving thorough mixing and ensuring its properties meet the requirements of plastics processing.

[0003] Currently, in actual production, open mills for color masterbatch mostly rely on two sets of internal rotating rollers to complete the mixing task. However, as the operating time of the open mill continues to increase, the mixing effect of the internal rollers gradually deteriorates. This is because prolonged high-intensity work causes the roller surfaces to gradually wear down, making it difficult to maintain the initial high efficiency of the extrusion, shear, and friction forces applied to the color masterbatch, thereby reducing the mixing quality of the color masterbatch.

[0004] Meanwhile, during the masterbatch refining process, due to differences in the characteristics of different batches of masterbatch and actual production needs, the spacing between the rollers often needs to be frequently adjusted. This means that the position of the rollers needs to be constantly changed, and frequent position changes can damage the roller structure, greatly shortening the roller's service life. Once a roller fails and needs to be replaced, the entire replacement process involves complex disassembly and installation steps, which is cumbersome, time-consuming, and disrupts normal production progress.

[0005] Another significant issue during open milling is the tendency of crushed masterbatch powder to adhere to the outer wall of the rollers. Due to the lack of effective cleaning measures inside existing open mills, this adhered masterbatch powder continues to accumulate. In subsequent open milling operations, this powder may mix with new masterbatch, causing fluctuations in product quality, affecting the color uniformity and performance stability of the final plastic products, and negatively impacting production operations. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a two-roll open mill for the production of color masterbatch, which allows for convenient adjustment of the spacing between the rolls and enables the cleaning of the outer wall of the rolls.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a two-roll open mill for producing color masterbatch includes an outer shell, a feed pipe inserted and installed at the top of the outer shell, and inner shells fixedly installed on both the left and right sides of the inner wall of the outer shell. Guide plates are fixedly installed on opposite sides of the two inner shells, and the guide plates are inclined. Two motors are installed on the rear side of the outer shell, and roller assemblies are installed at the front output ends of the two motors. Cleaning components are provided in the inner cavities of the two inner shells, and a collection box is provided at the bottom of the two inner shells.

[0008] Preferably, the roller assembly includes a cylinder, which is fixedly connected to the output end of a corresponding motor. Multiple sets of limiting grooves are formed on the outer wall of the cylinder. Limiting strips are slidably connected to the inner cavities of the multiple sets of limiting grooves. Roller sleeves are fixedly installed on the outer walls of the multiple sets of limiting strips, and the roller sleeves are sleeved on the outer side of the cylinder.

[0009] In order to achieve open refining of color masterbatch and achieve good refining results.

[0010] Preferably, the cleaning component includes a movable plate with a screw threadedly connected to it. The bottom end of the screw penetrates the bottom of the inner shell and is movably connected to the bottom of the inner shell. A handwheel is fixedly installed at the bottom end of the screw. A cutter is fixedly installed on the outer wall of the movable plate. A transverse groove is formed on the outer wall of the inner shell. The side of the cutter away from the movable plate passes through the transverse groove and fits against the outer wall of the corresponding roller sleeve.

[0011] To achieve cleaning of the roller assembly and avoid masterbatch powder residue.

[0012] Preferably, a stop is fixedly connected to the top end of the screw.

[0013] This is to limit the movement of the movable plate and prevent it from derailing.

[0014] Preferably, the movable plate has four sets of limiting holes, and each of the four sets of limiting holes has a limiting post movably inserted into its inner cavity. The bottom ends of the four sets of limiting posts are fixedly connected to the bottom of the inner wall of the inner shell.

[0015] In order to limit the movement trajectory of the movable board 20 and improve stability.

[0016] Preferably, a second side groove is provided at the center of the front side of the outer shell, and a first side groove is provided near the bottom of the front side of the outer shell. Two door panels are movably installed in the inner cavities of both the first and second side grooves, and handles are installed on both door panels.

[0017] To facilitate subsequent replacement of the roller assembly and to facilitate the collection of powder.

[0018] Preferably, a mounting base is fixedly installed on the outer wall of each of the two motors, and the mounting base is fixedly connected to the outer wall of the housing.

[0019] In order to improve the stability of the motor during operation.

[0020] Preferably, a piston is inserted and installed at the top of the feed pipe, a connecting rope is installed at the top of the piston, and the other end of the connecting rope is fixedly connected to the top of the outer shell.

[0021] To prevent powder from being blown up and entering the work environment during the refining process.

[0022] The beneficial effects of this utility model are: This double-roll mill for color masterbatch production is equipped with cylinders and roller sleeves, and the cylinders and roller sleeves are combined to form a roller. When it is necessary to adjust the distance between the two sets of rollers, it is only necessary to adjust the distance between the two roller sleeves. At this time, it is only necessary to replace the two sets of roller sleeves with different outer diameters. On the one hand, it achieves the purpose of adjusting the distance, and on the other hand, replacing the new roller sleeves can achieve a better milling effect.

[0023] Equipped with a cutter and a screw, after replacing the roller sleeve, the position of the cutter is adjusted according to the outer diameter of the roller sleeve so that the cutter is in contact with the outer wall of the roller sleeve. At this time, the handwheel can be turned, which drives the screw to rotate. The screw drives the movable plate to move, and the movable plate drives the cutter to move. After the cutter moves to be in contact with the outer wall of the roller sleeve, the handwheel is no longer turned. Furthermore, when the roller sleeve is subjected to force and rotates in the future, it can achieve self-scraping with the help of the cutter, avoiding the adhesion of color masterbatch powder and affecting subsequent work. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the piston in its hidden state in this utility model;

[0026] Figure 3 This is a structural schematic diagram of the door panel and handle in the concealed state of this utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0029] In the diagram: 1. Outer shell; 2. Feed pipe; 3. Piston; 4. Connecting rope; 5. Side groove one; 6. Side groove two; 7. Collection box; 8. Door panel; 9. Handle; 10. Inner shell; 11. Guide plate; 12. Cylinder; 13. Motor; 14. Fixed base; 15. Roller sleeve; 16. Limiting strip; 17. Limiting groove; 18. Horizontal groove; 19. Cutting tool; 20. Movable plate; 21. Limiting hole; 22. Limiting post; 23. Stop block; 24. Screw; 25. Handwheel. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 As shown, a two-roll open mill for producing color masterbatch includes an outer shell 1, a feed pipe 2 inserted into the top of the outer shell 1, and inner shells 10 fixedly installed on both the left and right sides of the inner wall of the outer shell 1. Guide plates 11 are fixedly installed on opposite sides of the two inner shells 10, and the guide plates 11 are inclined. Two motors 13 are installed on the rear side of the outer shell 1, and roller assemblies are installed on the front output ends of the two motors 13. Cleaning components are provided in the inner cavities of the two inner shells 10, and a collection box 7 is provided at the bottom of the two inner shells 10.

[0032] In this embodiment, when the equipment is running, the color masterbatch is poured into the shell 1 through the feed pipe 2, and then two sets of motors 13 drive the roller assembly to achieve the smelting of the color masterbatch. The smelted color masterbatch falls into the collection box 7. The collection box 7 can be removed for centralized processing. During the above smelting, the roller assembly is cleaned using a cleaning component.

[0033] Please see Figure 4 and Figure 5 The roller assembly includes a cylinder 12, which is fixedly connected to the output end of a corresponding motor 13. Multiple sets of limiting grooves 17 are opened on the outer wall of the cylinder 12. Limiting strips 16 are slidably connected to the inner cavity of the multiple sets of limiting grooves 17. Roller sleeves 15 are fixedly installed on the outer wall of the multiple sets of limiting strips 16. The roller sleeves 15 are sleeved on the outside of the cylinder 12.

[0034] In this embodiment, when the equipment is running, the cylinder 12 and the roller sleeve 15 form a roller. Subsequently, the cylinder 12 is driven to rotate by the drive motor 13. The cylinder 12 drives the roller sleeve 15 to rotate through the limiting strip 16 and the limiting groove 17. The rotation of the roller sleeve 15 realizes the opening and refining of the masterbatch. When it is necessary to adjust the distance between the two sets of rollers, it is only necessary to use the sliding connection between the limiting strip 16 and the limiting groove 17 to complete the disassembly of the roller sleeve 15 and the cylinder 12, and then replace the roller sleeve 15 with the corresponding outer diameter to complete the adjustment of the distance between the two sets of rollers. The operation is convenient.

[0035] Please see Figure 3The cleaning component includes a movable plate 20, on which a screw 24 is threadedly connected. The bottom end of the screw 24 passes through the bottom of the inner shell 10 and is movably connected to the bottom of the inner shell 10. A handwheel 25 is fixedly installed at the bottom end of the screw 24. A blade 19 is fixedly installed on the outer wall of the movable plate 20. A transverse groove 18 is opened on the outer wall of the inner shell 10. The side of the blade 19 away from the movable plate 20 passes through the transverse groove 18 and fits against the outer wall of the corresponding roller sleeve 15.

[0036] In this embodiment, after the roller sleeve 15 is replaced, the position of the cutter 19 needs to be adjusted so that the cutter 19 fits against the outer wall of the roller sleeve 15. At this time, the handwheel 25 can be rotated so that the handwheel 25 drives the screw 24 to rotate. The screw 24 drives the movable plate 20 to move vertically. The movable plate 20 drives the cutter 19 to slide inside the transverse groove 18, thereby adjusting the position of the cutter 19. After the cutter 19 moves to fit against the outer wall of the roller sleeve 15, the handwheel 25 is stopped from being rotated. Subsequently, when the roller sleeve 15 rotates, it works with the cutter 19 to clean the outer wall of the roller sleeve 15, preventing the color masterbatch powder from adhering to the outer wall of the roller sleeve 15 and affecting the subsequent work.

[0037] Please see Figure 5 A stop 23 is fixedly connected to the top of the screw 24.

[0038] In this embodiment, the top of the movable plate 20 can be blocked by the stop block 23 to prevent the movable plate 20 from derailing from the screw 24.

[0039] Please see Figure 5 The movable plate 20 has four sets of limiting holes 21. Each of the four sets of limiting holes 21 has a limiting post 22 that is movably inserted into its cavity. The bottom of each of the four sets of limiting posts 22 is fixedly connected to the bottom of the inner wall of the inner shell 10.

[0040] In this embodiment, by using the combination of the limiting post 22 and the limiting hole 21, the vertical movement trajectory of the movable plate 20 can be limited, so that the movable plate 20 can only move on the vertical trajectory, thereby improving the stability of components such as the tool 19.

[0041] Please see Figure 3 A second side groove 6 is provided at the center of the front side of the outer shell 1, and a first side groove 5 is provided near the bottom of the front side of the outer shell 1. Two door panels 8 are movably installed in the inner cavity of both the first side groove 5 and the second side groove 6, and handles 9 are installed on both door panels 8.

[0042] In this embodiment, the side groove 5 and the side groove 6 facilitate the retrieval of the collection box 7 and the replacement of the roller sleeve 15, as well as the adjustment of the position of the cutter 19. The door panel 8 and the handle 9 can block the side groove 5 and the side groove 6, and can be easily opened later, so as to complete the subsequent work conveniently.

[0043] Please see Figure 2 Each of the two motors 13 has a fixed mounting base 14 on its outer wall, and the fixed mounting base 14 is fixedly connected to the outer wall of the outer casing 1.

[0044] In this embodiment, the fixing seat 14 can fix the motor 13 to the outer wall of the housing 1, thereby ensuring the stability of the motor 13 during operation and avoiding the problem of motor 13 being unstable.

[0045] Please see Figure 1 and Figure 2 A piston 3 is inserted into the top of the feed pipe 2, and a connecting rope 4 is installed on the top of the piston 3. The other end of the connecting rope 4 is fixedly connected to the top of the outer shell 1.

[0046] In this embodiment, the top of the feed pipe 2 is inserted and sealed by the piston 3 to prevent powder from being thrown up and flying into the surrounding working environment during the subsequent material cutting process. If the powder is inhaled by the workers, it will affect their respiratory health.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-roll open mill for producing color masterbatch, comprising a shell (1), characterized in that: The top of the outer shell (1) is fitted with a feed pipe (2), and the inner shells (10) are fixedly installed on both the left and right sides of the inner wall of the outer shell (1). The two inner shells (10) are fixedly installed on opposite sides with guide plates (11). The guide plates (11) are inclined. Two motors (13) are installed on the rear side of the outer shell (1). Roller assemblies are installed on the front output ends of the two motors (13). Cleaning components are provided in the inner cavities of the two inner shells (10), and a collection box (7) is provided at the bottom of the two inner shells (10).

2. The two-roll open mill for producing masterbatch as described in claim 1, characterized in that: The roller assembly includes a cylinder (12), which is fixedly connected to the output end of a corresponding motor (13). Multiple sets of limiting grooves (17) are opened on the outer wall of the cylinder (12). Limiting strips (16) are slidably connected to the inner cavity of the multiple sets of limiting grooves (17). Roller sleeves (15) are fixedly installed on the outer wall of the multiple sets of limiting strips (16). The roller sleeves (15) are sleeved on the outside of the cylinder (12).

3. The two-roll open mill for producing masterbatch as described in claim 1, characterized in that: The cleaning assembly includes a movable plate (20), on which a screw (24) is threadedly connected. The bottom end of the screw (24) passes through the bottom of the inner shell (10) and is movably connected to the bottom of the inner shell (10). A handwheel (25) is fixedly installed at the bottom end of the screw (24). A cutter (19) is fixedly installed on the outer wall of the movable plate (20). A transverse groove (18) is opened on the outer wall of the inner shell (10). The side of the cutter (19) away from the movable plate (20) passes through the transverse groove (18) and fits against the outer wall of the corresponding roller sleeve (15).

4. The two-roll open mill for producing masterbatch as described in claim 3, characterized in that: A stop (23) is fixedly connected to the top of the screw (24).

5. The two-roll open mill for masterbatch production as described in claim 3, characterized in that: The movable plate (20) has four sets of limiting holes (21). Each of the four sets of limiting holes (21) has a limiting post (22) installed in its inner cavity. The bottom of each of the four sets of limiting posts (22) is fixedly connected to the bottom of the inner wall of the inner shell (10).

6. The two-roll open mill for producing masterbatch as described in claim 1, characterized in that: The outer shell (1) has a side groove 2 (6) at the center of the front side, and a side groove 1 (5) is provided near the bottom of the front side of the outer shell (1). Two door panels (8) are movably installed in the inner cavity of both the side groove 1 (5) and the side groove 2 (6), and handles (9) are installed on both door panels (8).

7. The two-roll open mill for producing masterbatch as described in claim 1, characterized in that: Both motors (13) are fixedly mounted with mounting bases (14) on their outer walls, and the mounting bases (14) are fixedly connected to the outer wall of the outer shell (1).

8. The two-roll open mill for producing masterbatch as described in claim 1, characterized in that: A piston (3) is inserted into the top of the feed pipe (2), and a connecting rope (4) is installed on the top of the piston (3). The other end of the connecting rope (4) is fixedly connected to the top of the outer shell (1).

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