Double-roller open mill for rubber production

By designing rotating and positioning components on a twin-roll open mill, safe cleaning during twin-roll rotation is achieved, solving the problem of insufficient safety during manual cleaning and improving cleaning efficiency and safety.

CN224028061UActive Publication Date: 2026-03-24TIANJIN TIANXINGJIAN RUBBER PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

During the cleaning of a twin-roll open mill, there are safety concerns when manually cleaning blind spots due to the rotation of the twin rolls.

Method used

A twin-roll open mill was designed, comprising a rotating fixing component, a cleaning component, and a positioning component. The rotating fixing component drives the cleaning component to adhere to the surface of the twin rolls, and the positioning component fixes it in place, thus achieving safe cleaning.

Benefits of technology

During the rotation of the two rollers, impurities on the surface can be cleaned safely and effectively, avoiding increased roller wear and improving cleaning efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rubber production, and discloses a double-roller open mill for rubber production, the double-roller open mill comprises a mounting base, a double-roller assembly, a storage disc, a rotary fixing assembly, a cleaning assembly and a positioning assembly, and a double-roller open mill main body is composed of the mounting base and the double-roller assembly arranged in the mounting base. Through the arrangement of the rotary fixing assembly, the cleaning assembly and the positioning assembly, the rotary fixing assembly can achieve the effect that rubber is conveyed to a working area of the roller assembly in the machining process, and when the surfaces of double rollers of the roller assembly need to be cleaned, the rubber can be cleaned in a rotary mode and through cooperation of the positioning assembly, and the cleaning efficiency is greatly improved. By means of the mode, safe cleaning can be effectively achieved when the double rollers rotate, the cleaning assemblies are attached to the surfaces of the double rollers through springs, and the situation that abrasion of the double rollers is increased due to excessive abutting and pressing in the attaching process can be avoided.
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Description

Technical Field

[0001] This application relates to the field of rubber production technology, specifically a two-roll open mill for rubber production. Background Technology

[0002] The two-roll mill, an indispensable piece of equipment in rubber production, is widely used in rubber mixing, plasticizing, and hot refining processes. Its unique two-roll structure design allows rubber materials to be subjected to strong shearing and extrusion between two relatively rotating rollers, thereby achieving uniform mixing, plasticizing, desulfurization, and degassing.

[0003] A two-roll open mill mainly consists of rollers, a frame, and a transmission system. The rollers are made of high-quality steel with a special surface treatment, resulting in high hardness and wear resistance. The frame structure is robust and can withstand significant working loads. The transmission system is motor-driven, ensuring stable roller rotation.

[0004] After the rubber is sheared and extruded by the double rollers, residual rubber material will adhere to the surface of the rollers. The accumulated dirt and residue will affect the heat dissipation of the rollers and the flowability of the material. If not cleaned in time, bacteria may grow, which will negatively affect the product quality. When it is necessary to clean the double rollers, the rollers need to be started to clean their surfaces. During the rotation, the dead corners between the rollers are cleaned manually. However, the safety of the manual cleaning process is insufficient because the rollers are rotating. Utility Model Content

[0005] The purpose of this application is to provide a twin-roll open mill for rubber production, in order to solve the problem mentioned in the background art that when cleaning the twin rolls is required, the twin rolls need to be started to clean their surfaces. During the rotation of the twin rolls, the dead corners between the twin rolls are cleaned manually by personnel. However, this method is not safe during manual cleaning because the twin rolls are rotating.

[0006] To achieve the above objectives, this application provides the following technical solution: A two-roll open mill for rubber production, comprising: a mounting base, a roller assembly, a receiving tray, a rotating fixing assembly, a cleaning assembly, and a positioning assembly. The main body of the two-roll open mill consists of a mounting base, a roller assembly disposed inside the mounting base, and a receiving tray disposed inside the mounting base below the roller assembly. The rotating fixing assembly is disposed on the top outer wall of the mounting base. The rotating fixing assembly includes a hinge fixed at one end to the outer wall of the mounting base, a fixing frame disposed at the other end of the hinge, and a bracket formed on one side of the inner wall of the fixing frame. There are two sets of No. 1 slots, each with an "L" shaped cross-section. Circular grooves are formed on the inner walls of both sets of No. 1 slots. Two sets of No. 2 slots are located on the other side of the inner wall of the fixed frame. A No. 1 rod is welded to the inner wall of the two sets of No. 2 slots. One end of the No. 2 rod is slidably connected to the circular groove of the two sets of No. 1 slots. A positioning block is welded to the other end of the No. 2 rod. A No. 1 spring is sleeved on the No. 2 rod, and a handle is welded to the top of the positioning block. The two ends of the cleaning component are respectively located inside the No. 1 and No. 2 slots. The positioning component is located on the outer wall of the fixed frame.

[0007] By adopting the above technical solution, it is possible to safely clean the two rollers of the roller assembly.

[0008] Preferably, the cleaning component includes a mounting plate with one end disposed on pole number one, the mounting plate at one end of pole number one having an arc-shaped groove adapted to pole number one, and the other end of the mounting plate being disposed below a positioning block located inside the groove number one.

[0009] By adopting the above technical solution, it is possible to move and rotate on the No. 1 pole through the arc-shaped groove.

[0010] Preferably, the cleaning assembly further includes a No. 3 rod that is vertically slidably connected inside the mounting plate, and the top of the No. 3 rod has a protrusion integrally formed.

[0011] By adopting the above technical solution, it is possible to achieve stable vertical movement of the pole structure.

[0012] Preferably, the cleaning assembly further includes a scraper welded to the bottom end of pole number three.

[0013] By adopting the above technical solution, it is possible to achieve a scraping effect by attaching it to the surface of the two rollers of the roller assembly during its rotation.

[0014] Preferably, the cleaning assembly further includes a second spring sleeved on the third rod.

[0015] By adopting the above technical solution, the squeezing and pushing effect can be achieved through its own elasticity.

[0016] Preferably, the two ends of the second spring are respectively attached to the outer walls of the mounting plate and the scraper.

[0017] By adopting the above technical solution, the fitted structure can achieve stable displacement through compression and pushing.

[0018] Preferably, the positioning component includes an elastic locking block welded to the outer wall of the fixed frame at the end away from the hinge and an "U"-shaped block welded to the outer wall of the mounting base located below the elastic locking block.

[0019] By adopting the above technical solution, a quick fixation effect can be achieved through flexible plug-in connection.

[0020] In summary, this application has the following beneficial effects: by providing a rotating fixing component, a cleaning component, and a positioning component, the rotating fixing component can ensure that the rubber is not affected during processing and is conveyed to the working area of ​​the roller assembly. When cleaning of the surface of the roller assembly is required, the cleaning component moves and adheres to the surface of the rollers by rotating and cooperating with the positioning component. This method can effectively ensure safe cleaning of the rollers during rotation. Furthermore, the cleaning component adheres to the surface of the rollers by a spring, which can prevent excessive pressure during the adhesion process, thus avoiding increased wear on the rollers. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of this application;

[0022] Figure 2 This is a schematic diagram of the three-dimensional unfolded structure of this application;

[0023] Figure 3 This is a three-dimensional structural diagram of the rotating fixing component, cleaning component, and positioning component of this application.

[0024] In the diagram: 1. Mounting base; 2. Roller assembly; 3. Storage tray; 4. Rotary fixing assembly; 401. Hinge; 402. Fixing frame; 403. Slot 1; 404. Slot 2; 405. Rod 1; 406. Rod 2; 407. Positioning block; 408. Spring 1; 409. Handle; 5. Cleaning assembly; 501. Mounting plate; 502. Rod 3; 503. Scraper; 504. Spring 2; 6. Positioning assembly; 601. Elastic locking block; 602. "U"-shaped block. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] The following is in conjunction with the appendix Figure 1-3 The embodiments of this application will be described in further detail.

[0027] Example 1

[0028] Please see Figures 1-3 This embodiment provides a technical solution: a two-roll open mill for rubber production, comprising: a mounting base 1, a roller assembly 2, a receiving tray 3, a rotating fixing assembly 4, a cleaning assembly 5, and a positioning assembly 6;

[0029] The main body of the twin-roll open mill consists of a mounting base 1, a pair of rolls assembly 2 set inside the mounting base 1, and a storage tray 3 set inside the mounting base 1 and below the pair of rolls assembly 2. The mounting base 1 has a stable structure and can withstand a large working load. The pair of rolls assembly 2 is driven by a motor to ensure stable rotation of the rolls. The rolls are made of high-quality steel and the surface is specially treated to have high hardness and wear resistance. The above is the existing technology and will not be described in detail below.

[0030] The rotating fixing component 4 is mounted on the top outer wall of the mounting base 1. The rotating fixing component 4 includes a hinge 401 fixed at one end to the outer wall of the mounting base 1, a fixing frame 402 at the other end of the hinge 401, a first groove 403 opened on one side of the inner wall of the fixing frame 402, two sets of first grooves 403, the cross-sectional shape of the first groove 403 is "L" shaped, and circular grooves are opened on the inner walls of the two sets of first grooves 403. A second groove 404 is opened on the other side of the inner wall of the fixing frame 402, two sets of second grooves 404, a first rod 405 welded to the inner wall of the two sets of second grooves 404, a second rod 406 slidably connected at one end in the circular groove of the two sets of first grooves 403, a positioning block 407 welded to the other end of the second rod 406, a first spring 408 sleeved on the second rod 406, and a handle 409 welded to the top of the positioning block 407.

[0031] The cleaning component 5 is installed at both ends inside slot 1 403 and slot 2 404 respectively, and the positioning component 6 is installed on the outer wall of the fixed frame 402.

[0032] Rubber is placed inside the roller assembly 2 of the mounting base 1 for processing. The roller assembly 2 is driven by a motor to rotate the rollers. During the rotation of the two sets of rollers, the rubber inside is sheared and squeezed. The rubber that has been sheared and squeezed falls into the collection tray 3 for collection. When it is necessary to clean the rollers of the roller assembly 2 regularly, the cleaning component 5 is rotated by the rotating fixing component 4. After the cleaning component 5 rotates to the designated position, it is attached to the roller surface of the roller assembly 2. At this time, the rotating fixing component 4 can be fixed to the mounting base 1 by the positioning component 6, thereby improving the stability of the connection.

[0033] At this point, one end of the arc-shaped groove of the mounting plate 501 is inserted into the first rod 405 of the second groove 404. Then, the mounting plate 501 is rotated on the first rod 405 through the arc-shaped groove. At this time, the other end of the mounting plate 501 will move into the interior of the first groove 403. When the person stops holding the handle 409, the positioning block 407 is squeezed and displaced by the first spring 408 on the second rod 406. At this time, the other end of the mounting plate 501 can be positioned by the positioning block 407, thereby providing a fixed position for the mounting plate 501 inside the fixed frame 402.

[0034] Example 2

[0035] Please see Figures 1-3 This embodiment provides a technical solution: a two-roll open mill for rubber production, comprising: mounting plate 501, No. 3 rod 502, scraper 503 and No. 2 spring 504;

[0036] The cleaning component 5 includes a mounting plate 501 with one end set on the first pole 405. The mounting plate 501 at one end of the first pole 405 has an arc-shaped groove adapted to the first pole 405, and the other end of the mounting plate 501 is set below the positioning block 407 located inside the first groove 403.

[0037] The third rod 502 is vertically slidably connected inside the mounting plate 501. The top of the third rod 502 has an integrally formed protrusion. The scraper 503 is welded to the bottom of the third rod 502. The second spring 504 is sleeved on the third rod 502. The two ends of the second spring 504 are respectively attached to the outer walls of the mounting plate 501 and the scraper 503.

[0038] The second spring 504 at the bottom of the mounting plate 501 will vertically press and push the scraper 503. At this time, the scraper 503 will move vertically stably through the third rod 502. The scraper 503 will then adhere to the outer wall of the double rollers of the roller assembly 2. When the double rollers of the roller assembly 2 are rotated by the motor, the scraper 503 will scrape and clean the impurities on the surface of the double rollers.

[0039] Example 3

[0040] Please see Figures 1-3 This embodiment provides a technical solution: a two-roll open mill for rubber production, comprising: an elastic block 601 and an "U"-shaped block 602;

[0041] The positioning component 6 includes an elastic latch 601 welded to the outer wall of the fixed frame 402 at one end away from the hinge 401 and an "U"-shaped block 602 welded to the outer wall of the mounting base 1 below the elastic latch 601.

[0042] After the fixed frame 402 rotates, the fixed frame 402 is inserted into the "U"-shaped block 602 of the mounting base 1 through the elastic clip 601, thereby fixing the fixed frame 402 to the mounting base 1.

[0043] The implementation principle of the two-roll mill for rubber production described in this application is as follows:

[0044] First, the rubber is placed inside the roller assembly 2 of the mounting base 1 for processing. The roller assembly 2 is driven by a motor to rotate the rollers. During the rotation of the two sets of rollers, the rubber inside is sheared and squeezed. The rubber that has been sheared and squeezed falls into the collection tray 3 for collection. When it is necessary to clean the rollers of the roller assembly 2 regularly, the cleaning component 5 is rotated by the rotating fixing component 4. After the cleaning component 5 rotates to the designated position, it is attached to the roller surface of the roller assembly 2. At this time, the rotating fixing component 4 can be fixed to the mounting base 1 by the positioning component 6, thereby improving the stability of the connection.

[0045] Secondly, the fixed frame 402 rotates on the mounting base 1 via the hinge 401. After the fixed frame 402 rotates, it is inserted into the "U"-shaped block 602 of the mounting base 1 via the elastic locking block 601, thereby fixing the fixed frame 402 to the mounting base 1. At this time, one end of the arc-shaped groove of the mounting plate 501 is inserted into the first rod 405 of the second groove 404, and then rotates on the first rod 405 via the arc-shaped groove of the mounting plate 501. At this time, the other end of the mounting plate 501 will move into the interior of the first groove 403. When the person stops holding the handle 409, the positioning block 407 is squeezed and displaced by the first spring 408 on the second rod 406. At this time, the other end of the mounting plate 501 can be positioned by the positioning block 407, thereby fixing the mounting plate 501 inside the fixed frame 402.

[0046] Finally, the second spring 504 at the bottom of the mounting plate 501 will vertically press and push the scraper 503. At this time, the scraper 503 will move vertically stably through the third rod 502. The scraper 503 will then adhere to the outer wall of the double rollers of the roller assembly 2. When the double rollers of the roller assembly 2 are rotated by the motor, the scraper 503 will scrape and clean the impurities on the surface of the double rollers.

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

Claims

1. A two-roll open mill for rubber production, characterized in that, include: The main body of the two-roll open mill consists of a mounting base (1), a pair of rolls assembly (2) disposed inside the mounting base (1), and a storage tray (3) disposed inside the mounting base (1) and located below the pair of rolls assembly (2). A rotating fixing assembly (4) is disposed on the top outer wall of the mounting base (1). The rotating fixing assembly (4) includes a hinge (401) fixed at one end to the outer wall of the mounting base (1), a fixing frame (402) disposed at the other end of the hinge (401), and a first groove (403) formed on one side of the inner wall of the fixing frame (402). There are two sets of first grooves (403). The cross-sectional shape of the first groove (403) is "L". The inner walls of the two sets of first grooves (403) are... The upper part has a circular groove, and the second groove (404) is opened on the other side of the inner wall of the fixed frame (402). There are two sets of the second groove (404). The first rod (405) is welded to the inner wall of the two sets of second grooves (404), the second rod (406) is slidably connected at one end in the circular groove of the two sets of first grooves (403), the positioning block (407) is welded to the other end of the second rod (406), the first spring (408) is sleeved on the second rod (406), and the handle (409) is welded to the top of the positioning block (407). Cleaning component (5), the two ends of which are respectively disposed inside the first slot (403) and the second slot (404); Positioning component (6) is disposed on the outer wall of the fixed frame (402).

2. The two-roll open mill for rubber production according to claim 1, characterized in that: The cleaning component (5) includes a mounting plate (501) with one end set on the first pole (405). The mounting plate (501) at one end of the first pole (405) has an arc-shaped groove adapted to the first pole (405), and the other end of the mounting plate (501) is set below the positioning block (407) located inside the first groove (403).

3. The two-roll open mill for rubber production according to claim 2, characterized in that: The cleaning component (5) also includes a third rod (502) that is vertically slidably connected inside the mounting plate (501), and the top of the third rod (502) has an integrally formed protrusion.

4. The two-roll open mill for rubber production according to claim 3, characterized in that: The cleaning assembly (5) also includes a scraper (503) welded to the bottom of the third pole (502).

5. A two-roll open mill for rubber production according to claim 4, characterized in that: The cleaning assembly (5) also includes a second spring (504) sleeved on the third rod (502).

6. A two-roll open mill for rubber production according to claim 5, characterized in that: The two ends of the second spring (504) are respectively attached to the outer walls of the mounting plate (501) and the scraper (503).

7. The two-roll open mill for rubber production according to claim 1, characterized in that: The positioning component (6) includes an elastic latch (601) welded to the outer wall of the fixed frame (402) at one end away from the hinge (401) and an "U"-shaped block (602) welded to the outer wall of the mounting base (1) below the elastic latch (601).