Anti-burning EVA foaming material open mill

Abstract

This utility model discloses a scorch-proof EVA foam material open mill, relating to the field of open mills. The open mill includes two sets of fixing blocks installed on both sides of its top. Two sets of connecting rods are connected to the outer wall of the rotating column. Two sets of sliding columns are fixed to one side of the outer wall of each connecting rod. A cleaning block is provided on one side of the connecting plate, and a first spring is installed on one side of the cleaning block. When debris on the outer wall of the roller melts, the operator rotates the rotating column, causing the cleaning block to contact the outer wall of the roller. When the first fixing rod is inside the fixing assembly, the rotating column is less likely to rotate. At this time, the cleaning block is tightly pressed against the outer wall of the roller by the compression of the first spring. When the operator pushes the connecting block back and forth with the handle, the cleaning block removes debris from the roller. A safe distance is maintained between the operator's hands and the roller, preventing burns from contact with the roller during cleaning.

Description

Technical Field

[0001] This utility model relates to the field of open mills, specifically an open mill for EVA foaming materials that can prevent scorching. Background Technology

[0002] An EVA foaming material open mill is a type of machinery specifically designed for processing EVA foaming materials. In the rubber and plastics processing industry, EVA foaming materials are widely used in the manufacture of products such as sports shoe soles, yoga mats, and automotive interiors due to their excellent flexibility, impact resistance, and chemical resistance. The open mill uses two relatively rotating rollers to perform mixing and plasticizing operations on the EVA material, ensuring that various compounding agents are evenly dispersed in the EVA matrix, thereby improving material properties and meeting the production needs of different products.

[0003] An EVA foam material open mill uses two sets of rollers with a certain temperature and speed difference to compress, stretch, and mix the material using the shearing and friction forces of the rollers. During continuous processing, the EVA material is constantly tumbling and deforming under the action of the rollers, achieving full plasticization. However, when the open mill stops running, the EVA material fragments adhering to the outer wall of the rollers will quickly solidify due to the loss of heat supply and mechanical action from the rollers. These solidified fragments will not only affect the normal start-up and processing quality of the next open mill, but may also cause product defects due to residual impurities. Therefore, it is necessary to remove the fragments on the outer wall of the rollers before using an EVA foam material open mill to process RVA foam material.

[0004] Currently, before processing EVA material using an open mill, operators typically wipe away debris from the outer wall of the rollers using towels or other tools while the mill is running. This is done to utilize the heat generated by the continuous operation of the rollers to melt the solidified debris, making it easier for personnel to clean. However, this operation method poses a significant safety risk. Due to the high surface temperature of the rollers, when operators wipe with a towel, their hands are very likely to come into contact with the rollers. Since the operating temperature of the rollers is around 100 degrees Celsius, contact can cause localized burns to the operator's hands. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an EVA foam material open mill that can prevent scorching, so as to solve the technical problem that the high temperature of the rollers can easily cause burns to the hands of personnel when cleaning the outer wall of the open mill rollers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a scorch-proof EVA foam material open mill, comprising an open mill, two sets of rollers installed inside the open mill, two sets of fixed blocks installed on both sides of the top of the open mill, a rotating column movably installed on one side of one set of fixed blocks, two sets of connecting rods connected to the outer wall of the rotating column, two sets of sliding columns fixed on one side of the outer wall of the connecting rods, a slider sleeved on the outer wall of the sliding column, a connecting plate connected to the end of the slider, a handle fixed on the outer wall of the connecting plate, a cleaning block provided on one side of the connecting plate, a first spring installed on one side of the cleaning block, and limit posts provided on both sides of the outer wall of the cleaning block.

[0007] By adopting the above technical solution, the problem of burns to personnel's hands caused by the high temperature of the rollers when cleaning the outer wall of the open mill is solved. When the debris on the outer wall of the roller melts, the personnel rotate the rotating column so that the cleaning block comes into contact with the outer wall of the roller. When the first fixing rod is located inside the fixing assembly, the rotating column is not easy to rotate. At this time, the cleaning block is tightly attached to the outer wall of the roller due to the compression of the first spring. When the personnel push the connecting block back and forth with the handle, the cleaning block removes the debris on the roller. A safe distance is maintained between the personnel's hands and the roller, so that the personnel will not be burned by contact with the roller when cleaning the roller.

[0008] The present invention is further configured such that the length of the cleaning block is greater than that of the connecting plate, and the cleaning block is made of high-temperature resistant silicone material.

[0009] Preferably, the two sets of rollers on the open mill operate at different temperatures, and the operating temperature range of the set of rollers with the highest operating temperature is usually between 100°C and 100°C, while the cleaning block made of silicone material can withstand high temperatures of around 100°C.

[0010] The present invention is further configured such that the length of the sliding column is equal to the length of the roller.

[0011] Preferably, when the connecting plate moves to the end of the sliding column, one end of the cleaning block can extend beyond one end of the roller, so that the cleaning block is less likely to have blind spots in the cleaning area of ​​the roller.

[0012] The present invention is further configured such that a first fixing rod and a second fixing rod are movably installed on one side of each of the two sets of connecting rods.

[0013] Preferably, when the rotating column rotates to the point where the cleaning block contacts the roller, the first and second fixing rods can contact the top wall of the open mill, preventing the sliding column from getting close to the roller, thereby maintaining a safe distance between the personnel's hands and the roller.

[0014] The present invention is further configured such that a fixing component is installed inside the two sets of fixing blocks, the fixing component including a first locking plate and a second locking plate, and a second spring is provided at one end of the first locking plate and the second locking plate.

[0015] Preferably, when the first fixed rod and the second fixed rod rotate and contact the top wall of the open mill, the first clamping plate and the second clamping plate limit the first fixed rod and the second fixed rod, so that the rotating column will not rotate.

[0016] The present invention is further configured such that a second spring is provided at one end of both the first card plate and the second card plate, a sliding groove is provided inside the fixing block, and limit blocks are installed on both sides of the outer wall of the first card plate and the second card plate.

[0017] Preferably, when the first fixing rod is located below the fixing component, the first and second clamping plates, which are in a compressed state, jointly limit the movement of the first fixing rod.

[0018] The present invention is further configured such that the length of the first card plate is greater than the length of the second card plate, and the second card plate is located on a fixed block on one side of the rotating column.

[0019] Preferably, when the first fixing rod is below the rotating column fixing assembly, the top outer wall of the first fixing rod will contact the bottom wall of the first card plate, so that the first fixing rod will not push the first card plate and the second card plate apart.

[0020] The present invention is further configured such that a limiting ring is provided at the end of the first fixing rod, and a cavity is provided inside one end of the second fixing rod, with the limiting ring located inside the cavity.

[0021] Preferably, when it is necessary to rotate the cleaning block to the back of the open mill, the operator needs to push the first fixing rod and the second fixing rod closer to each other so that one end of the first fixing rod and the second fixing rod disengages from the bottom of the fixing assembly.

[0022] The present invention is further configured such that the top walls of both the first card plate and the second card plate are arc-shaped.

[0023] Preferably, when the first fixing rod presses down on the first and second clamping plates, since the first fixing rod is cylindrical and the top walls of the first and second clamping plates are arc-shaped, the downward movement of the first fixing rod easily pushes the first and second clamping plates to both sides.

[0024] In summary, the present invention has the following main advantages:

[0025] This invention solves the problem of burns to workers' hands caused by the high temperature of the rollers when cleaning the outer wall of the open mill by setting up an open mill, a rotating column, a connecting rod, a sliding column, a connecting plate, a cleaning block, a first spring, and a slider. When the debris on the outer wall of the roller melts, the worker rotates the rotating column, causing the cleaning block to contact the outer wall of the roller. When the first fixing rod is located inside the fixing assembly, the rotating column is less likely to rotate. At this time, the cleaning block is tightly pressed against the outer wall of the roller by the compression of the first spring. When the worker pushes the connecting block back and forth with the handle, the cleaning block removes the debris from the roller. A safe distance is maintained between the worker's hands and the roller, so that the worker will not be burned by contact with the roller when cleaning it.

[0026] This invention solves the problem of difficulty in fixing the position of the rotating column when the cleaning block contacts the roller by setting a first fixing rod, a second fixing rod, a first clamping plate, a second clamping plate, a second spring, and a fixing block. When the sliding column rotates to one side of the roller, the cleaning block between the two sets of sliding columns contacts one side of the outer wall of the roller. During the rotation, one end of the first fixing rod and the second fixing rod presses down on the first clamping plate and the second clamping plate. Due to the pressure of the first fixing rod, the first clamping plate and the second clamping plate move to both sides, so that the first fixing rod can be displaced below the first clamping plate, so that the fixing assembly controls the rotation of the rotating column through the first fixing rod. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0028] Figure 2 This is a partial schematic diagram of the device of this utility model;

[0029] Figure 3 This is a schematic diagram of the back of the open mill of this utility model;

[0030] Figure 4 For the present utility model Figure 3 Enlarged view of Figure A;

[0031] Figure 5 For the present utility model Figure 3 A magnified view of image B;

[0032] Figure 6 This is a schematic diagram of the installation of the blocking block of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Open mill; 101. Roller; 102. Fixing block; 2. Cleaning block; 3. Connecting plate; 301. First spring; 302. Limiting post; 303. Handle; 304. Sliding block; 4. Rotating column; 401. Connecting rod; 402. Sliding column; 5. First fixing rod; 501. Limiting ring; 502. Second fixing rod; 503. Cavity; 504. Blocking block; 6. First clamping plate; 601. Second clamping plate; 602. Second spring; 603. Limiting block; 604. Slide groove. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] First embodiment:

[0038] Please see Figure 1 — Figure 5 The system includes an open mill 1, which has two sets of rollers 101 installed inside. Two sets of fixing blocks 102 are installed on both sides of the top of the open mill 1. A rotating column 4 is movably installed on one side of each fixing block 102. Two sets of connecting rods 401 are connected to the outer wall of the rotating column 4. Two sets of sliding columns 402 are fixed to one side of the outer wall of each connecting rod 401. A slider 304 is sleeved on the outer wall of each slider 402. A connecting plate 3 is connected to the end of each slider 304. A handle 303 is fixed to the outer wall of the connecting plate 3. A cleaning block 2 is provided on one side of the connecting plate 3. A first spring 301 is installed on one side of the cleaning block 2. Limiting posts 302 are provided on both sides of the outer wall of the cleaning block 2, thus solving the problem of personnel touching the rollers of the open mill. The high temperature of the rollers during cleaning can easily cause burns to personnel's hands. When the debris on the outer wall of roller 101 melts, the personnel rotate the rotating column 4 so that the cleaning block 2 comes into contact with the outer wall of roller 101. When the first fixing rod 5 is inside the fixing assembly, the rotating column 4 is not easy to rotate. At this time, the cleaning block 2 is tightly attached to the outer wall of roller 101 by the compression of the first spring 301. When the personnel push the connecting block 3 back and forth through the handle 303, the cleaning block 2 removes the debris on roller 101. A safe distance is maintained between the personnel's hands and roller 101 so that the personnel will not be burned by contact with roller 101 when cleaning roller 101.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 2The length of the cleaning block 2 is greater than that of the connecting plate 3. The cleaning block 2 is made of high-temperature resistant silicone material. The two sets of rollers 101 on the open mill 1 have different operating temperatures, and the operating temperature range of the set of rollers 101 with the highest operating temperature is usually between 90 degrees and 120 degrees. The silicone cleaning block 2 can withstand a high temperature of about 200 degrees.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The length of the sliding column 402 is equal to the length of the roller 101. When the connecting plate 3 moves to the end of the sliding column 402, one end of the cleaning block 2 can extend beyond one end of the roller 101, so that the cleaning block 2 is less likely to have blind spots in the cleaning area of ​​the roller 101.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The first fixed rod 5 and the second fixed rod 502 are movably installed on one side of the two sets of connecting rods 401 respectively. When the rotating column 4 rotates to the point where the cleaning block 2 contacts the roller 101, the first fixed rod 5 and the second fixed rod 502 can contact the top wall of the open mill 1, so that the sliding column 402 no longer approaches the roller 101, thereby maintaining a certain safe distance between the personnel's hands and the roller 101.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The two sets of fixing blocks 102 are equipped with fixing components. The fixing components include a first clamping plate 6 and a second clamping plate 601. A second spring 602 is provided at one end of the first clamping plate 6 and the second clamping plate 601. When the first fixing rod 5 and the second fixing rod 502 rotate and contact the top wall of the open mill 1, the first clamping plate 6 and the second clamping plate 601 limit the first fixing rod 5 and the second fixing rod 502, so that the rotating column 4 will not rotate.

[0043] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 A second spring 602 is provided at one end of the first card plate 6 and the second card plate 601. A sliding groove 604 is provided inside the fixing block 102. Limiting blocks 603 are installed on both sides of the outer wall of the first card plate 6 and the second card plate 601. When the first fixing rod 5 is located below the fixing component, the first card plate 6 and the second card plate 601, which are in a compressed state, jointly limit the first fixing rod 5.

[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The length of the first card plate 6 is greater than the length of the second card plate 601, and the second card plate 601 is located on the fixing block 102 on one side of the rotating column 4. When the first fixing rod 5 is below the rotating column fixing assembly, the top outer wall of the first fixing rod 5 will contact the bottom wall of the first card plate 6, so that the first fixing rod 5 will not push the first card plate 6 and the second card plate 601 apart.

[0045] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The end of the first fixing rod 5 is provided with a limit ring 501, and the second fixing rod 502 has a cavity 503 inside one end. The limit ring 501 is located inside the cavity 503. When it is necessary to rotate the cleaning block 2 to the back of the open mill 1, the personnel need to push the first fixing rod 5 and the second fixing rod 502 closer to each other so that one end of the first fixing rod 5 and the second fixing rod 502 disengages from the bottom of the fixing assembly.

[0046] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The top walls of the first card plate 6 and the second card plate 601 are both set to be arc-shaped. When the first fixing rod 5 presses the first card plate 6 and the second card plate 601 downward, since the first fixing rod 5 is cylindrical and the top walls of the first card plate 6 and the second card plate 601 are arc-shaped, the first fixing rod 5 can easily push the first card plate 6 and the second card plate 601 to both sides when it moves downward.

[0047] Second embodiment:

[0048] Please see Figure 6 A set of blocking blocks 504 are fixed to the outer wall of one end of the first fixed rod 5 and the second fixed rod 502. When the personnel push the first fixed rod 5 and the second fixed rod 502 closer to each other, when the first fixed rod 5 moves away from the control of the first clamping plate 6 and the second clamping plate 601, the blocking block 504 on the outer wall of the first fixed rod 5 contacts the outer wall of the connecting rod 401, so that the connecting rod 401 prevents the first fixed rod 5 and the second fixed rod 502 from moving out of the connecting rod 401 by blocking the blocking block 504.

[0049] In practical operation, before processing EVA material using the open mill 1, the open mill 1 is run for a period of time to heat and melt the solidified material fragments adhering to the outer wall of the roller 101. Then, the operator pulls the sliding column 402 to rotate the rotating column 4. When the sliding column 402 rotates to one side of the roller 101, the cleaning block 2 between the two sets of sliding columns 402 contacts one side of the outer wall of the roller 101. During the rotation of the rotating column 4, one end of the first fixing rod 5 and the second fixing rod 502 on one side of the rotating column 4 presses downward against the first clamping plate 6 and the second clamping plate 601. Due to the arc-shaped design of the top walls of the first clamping plate 6 and the second clamping plate 601... When the first fixing rod 5 presses downward between the first clamping plate 6 and the second clamping plate 601, the first clamping plate 6 and the second clamping plate 601 move to both sides due to the pressure of the first fixing rod 5. The first clamping plate 6 and the second clamping plate 601 compress and contract the second spring 602. When the first fixing rod 5 and the second fixing rod 502 move to below the first clamping plate 6 and the second clamping plate 601, the second spring 602, which is in a contracted state, pushes the first clamping plate 6 and the second clamping plate 601 back to the initial position, so that the first clamping plate 6 and the second clamping plate 601 limit and fix the first fixing rod 5 and the second fixing rod 502, thereby preventing the rotating column 4 from rotating.

[0050] When the first fixing rod 5 and the second fixing rod 502 rotate and contact the top wall of the open mill 5, since the initial length of the first spring 301 is greater than the distance between the connecting plate 3 and the roller 101 at this time, the cleaning block 2 is squeezed and compressed by the reaction force of the roller 101. At the same time, the first spring 301 will also apply a reaction force to the cleaning block 2, so that the cleaning block 2 is tightly attached to the outer wall of the roller 101. Then, the personnel push the connecting block 3 back and forth in the horizontal direction through the handle 303, so that the cleaning block 2 removes the debris attached to the outer wall of the roller 101.

[0051] After the debris on the outer wall of the roller 101 is completely removed, the personnel push the first fixing rod 5 and the second fixing rod 502 closer to each other, so that one side of the first fixing rod 5 and the second fixing rod 502 moves out from the bottom of the first clamping plate 6, thereby releasing the control of the first clamping plate 6 and the second clamping plate 601 on the first fixing rod 5 and the second fixing rod 502. Then, the rotating column 4 is flipped to the back of the open mill 1, which makes it easier for the personnel to process the EVA foam material.

[0052] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A two-roll mill for EVA foam material that can prevent scorching, comprising a two-roll mill (1), characterized in that: The open mill (1) is equipped with two sets of rollers (101) inside. Two sets of fixed blocks (102) are installed on both sides of the top of the open mill (1). A rotating column (4) is movably installed on one side of one set of fixed blocks (102). Two sets of connecting rods (401) are connected to the outer wall of the rotating column (4). Two sets of sliding columns (402) are fixed on one side of the outer wall of the connecting rod (401). A slider (304) is sleeved on the outer wall of the sliding column (402). A connecting plate (3) is connected to the end of the slider (304). A handle (303) is fixed on the outer wall of the connecting plate (3). A cleaning block (2) is provided on one side of the connecting plate (3). A first spring (301) is installed on one side of the cleaning block (2). Limiting columns (302) are provided on both sides of the outer wall of the cleaning block (2).

2. The open mill for EVA foaming material that can prevent scorching according to claim 1, characterized in that: The length of the cleaning block (2) is greater than that of the connecting plate (3), and the cleaning block (2) is made of high-temperature resistant silicone material.

3. The open mill for EVA foaming material that can prevent scorching according to claim 1, characterized in that: The length of the slide (402) is equal to the length of the roller (101).

4. The open mill for EVA foaming material that can prevent scorching according to claim 1, characterized in that: The first fixing rod (5) and the second fixing rod (502) are respectively movably installed on one side of the two sets of connecting rods (401).

5. The open mill for EVA foaming material that can prevent scorching according to claim 1, characterized in that: The fixing block (102) has a fixing component installed inside. The fixing component includes a first locking plate (6) and a second locking plate (601). A second spring (602) is provided at one end of the first locking plate (6) and the second locking plate (601).

6. The open mill for EVA foaming material that can prevent scorching according to claim 5, characterized in that: A second spring (602) is provided at one end of the first card plate (6) and the second card plate (601). A sliding groove (604) is provided inside the fixing block (102). Limiting blocks (603) are installed on both sides of the outer wall of the first card plate (6) and the second card plate (601).

7. The open mill for EVA foaming material that can prevent scorching according to claim 5, characterized in that: The length of the first card plate (6) is greater than the length of the second card plate (601), and the second card plate (601) is located on the fixing block (102) on one side of the rotating column (4).

8. The open mill for EVA foaming material that can prevent scorching according to claim 4, characterized in that: The end of the first fixing rod (5) is provided with a limiting ring (501), and a cavity (503) is opened inside one end of the second fixing rod (502), and the limiting ring (501) is located inside the cavity (503).

9. The open mill for EVA foaming material that can prevent scorching according to claim 5, characterized in that: The top walls of both the first card plate (6) and the second card plate (601) are set to be arc-shaped.

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