Calender for rubber plate production

Abstract

The utility model relates to a calender for rubber plate production, which comprises a base plate, three vertical frames are respectively arranged above the base plate along the conveying direction of rubber materials, a first shaft rod is rotatably arranged between the two vertical frames on the most downstream side, and a second shaft rod is rotatably arranged between the two vertical frames in the middle. A third shaft rod is rotationally mounted between the two vertical frames on the most upstream side; the first shaft rod, the second shaft rod and the third shaft rod are each fixedly sleeved with a first pressing roller. And a driving mechanism is arranged on one side above the base plate. The three compression roller sets composed of the first compression rollers and the second compression rollers are arranged on the base plate in the conveying direction, three-stage calendering processing is carried out on rubber materials, the gaps of the three compression roller sets are gradually reduced, the rubber materials can obtain uniform and gradually-increased pressure in each stage, pressing is more uniform, and the rubber materials are not prone to falling off. And bubbles in the rubber material are effectively reduced through step-by-step pressing, so that the quality of the rubber plate is more uniform and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber plate processing, in particular to a calender for rubber plate production. Background Art

[0002] Rubber sheet is a sheet product with rubber as the main material, which is made by calendering and has a certain thickness and a large area. In the process of rubber sheet production, a calender is needed to process the rubber material so that the plasticized rubber material passes through the gap between two rollers and is subjected to extrusion and extension to form a rubber sheet product of the required thickness and width.

[0003] The traditional calender used for rubber sheet production is only equipped with a pair of rollers, and can only perform a single calendering process on the rubber material. Since the rubber material contains many bubbles, it is difficult to expel a large number of bubbles in a single calendering, and many bubbles will remain in the material, affecting the molding quality of the rubber sheet. Utility Model Content

[0004] The utility model aims to provide a calender for producing rubber plates with a multi-stage calendering effect.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] A calender for rubber sheet production, comprising a base plate, three pairs of frames are respectively arranged above the base plate along the conveying direction of the rubber material, a first shaft is rotatably installed between the two frames on the most downstream side, a second shaft is rotatably installed between the two frames in the middle, and a third shaft is rotatably installed between the two frames on the most upstream side; a first pressing roller is fixedly sleeved on the outside of the first shaft, the second shaft and the third shaft; a driving mechanism is arranged on one side above the base plate, the driving mechanism is used to drive the first shaft, the second shaft and the third shaft to rotate in the same direction at the same time; a second pressing roller is rotatably installed between the two frames on the opposite sides and above the first pressing roller through a U-shaped frame; the spacing between the first pressing roller on the first shaft and the second pressing roller above it is defined as X, the spacing between the first pressing roller on the second shaft and the second pressing roller above it is defined as Y, the spacing between the first pressing roller on the third shaft and the second pressing roller above it is defined as Z, and the size relationship of X, Y and Z is Z>Y>Z.

[0007] It can be seen that by arranging three groups of rollers consisting of the first roller and the second roller along the conveying direction on the base plate, the rubber material is subjected to three-stage calendering processing, and the gap between the three rollers gradually decreases, so that the rubber material can obtain uniform and gradually increasing pressure at each stage, and the pressing is more uniform. The step-by-step pressing effectively reduces the bubbles in the rubber material, making the quality of the rubber sheet more uniform and stable. The rotation drive of the three first rollers all comes from the drive mechanism, sharing the same drive source, and there is no need to set up multiple groups of drive devices, which reduces the investment in equipment costs. The overall structural layout is reasonable and highly applicable.

[0008] Furthermore, the driving mechanism includes a first pulley group, a second pulley group, a mounting base and a driving motor; the sides of the three uprights on the same side above the base plate are all rotatably mounted with rotating shafts, and the three rotating shafts are fixedly connected to the first shaft rod, the second shaft rod and the third shaft rod respectively; the rotating shaft fixed to the first shaft rod and the rotating shaft fixed to the second shaft rod are connected by transmission through the first pulley group; the rotating shaft fixed to the second shaft rod and the rotating shaft fixed to the third shaft rod are connected by transmission through the second pulley group; the driving motor is fixed to the side of one of the uprights on the upstream side through the mounting base, and the output shaft of the driving motor is fixedly connected to the rotating shaft fixed to the third shaft rod.

[0009] By driving the motor, its output shaft drives the rotating shaft fixedly connected to the third shaft rod to rotate, and under the transmission action of the second pulley group, it can drive the rotating shaft fixed to the second shaft rod to rotate, and under the transmission action of the first pulley group, it can drive the rotating shaft fixed to the first shaft rod to rotate, and then drive the first shaft rod, the second shaft rod and the third shaft rod to rotate, ensuring that the three first pressure rollers can rotate in the same direction at the same time, thereby improving the conveying effect of the rubber material.

[0010] Furthermore, the mounting seat is in a transverse U-shape and is fixed on one side of the vertical frame, and a mounting cavity for mounting the second pulley set and the rotating shaft is formed between the mounting seat and the vertical frame.

[0011] By designing the mounting seat into a U shape and installing it horizontally on the side of the stand, a mounting cavity can be formed between the stand and the stand, thereby making room for the arrangement of the second pulley set and the rotating shaft.

[0012] Furthermore, a suspension is fixed on the top of the two upright frames on the opposite sides, and a threaded hole that passes through the middle of the suspension is provided; an adjusting screw is installed in the threaded hole to match the inner thread, and the lower end of the adjusting screw extends through to the bottom of the suspension and is rotatably connected to the top of the U-shaped frame.

[0013] By rotating the adjusting screw forward and backward, the adjusting screw can be raised and lowered under the cooperation of the adjusting screw and the threaded hole, thereby driving the second pressing roller to rise and fall, so as to adjust the distance between the second pressing roller and the first pressing roller, so as to adapt to the processing of rubber sheets of different thicknesses. At the same time, the heights of the three second pressing rollers can be adjusted separately, and then the distances of the three pressing roller groups can be adjusted separately, which is highly practical.

[0014] Furthermore, the suspension is provided with guide holes which penetrate from top to bottom, and guide limit rods which can slide vertically are installed in the guide holes; the bottom end of the guide limit rod is fixedly connected to the top of the U-shaped frame.

[0015] By fixing the bottom end of the guide limit rod slidably installed in the guide hole to the U-shaped frame, a limit guide function can be provided to the U-shaped frame to prevent the U-shaped frame from rotating synchronously with the adjusting screw.

[0016] Furthermore, the upper end of the adjusting screw rod extends above the suspension and is provided with a screw handle.

[0017] By turning the handle at the top of the adjusting screw rod, it is convenient to hold the handle and apply force to rotate and adjust the adjusting screw rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0019] 1. The utility model arranges three groups of pressing rollers consisting of a first pressing roller and a second pressing roller on a base plate along a conveying direction to perform three-stage calendering processing on the rubber material. The gap between the three pressing rollers gradually decreases, so that the rubber material can obtain uniform and gradually increasing pressure at each stage, and the pressing is more uniform. The step-by-step pressing effectively reduces bubbles in the rubber material, making the quality of the rubber sheet more uniform and stable.

[0020] 2. The rotation drive of the three first pressure rollers in the utility model all comes from the driving mechanism and shares the same driving source. There is no need to set up multiple sets of driving devices, thus reducing the investment in equipment cost. The overall structural layout is reasonable and the applicability is high.

[0021] 3. The utility model can raise and lower the adjusting screw by rotating the adjusting screw forward and backward, and the adjusting screw can further drive the second pressing roller to raise and lower, so as to adjust the distance between the second pressing roller and the first pressing roller, so as to adapt to the processing of rubber plates of different thicknesses. At the same time, the heights of the three second pressing rollers can be adjusted separately, so as to adjust the distances of the three pressing roller groups separately, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0023] Figure 2This is a schematic diagram of the distance between the first pressing roller and the second pressing roller of the utility model;

[0024] Figure 3 This is a schematic diagram of the installation of the U-shaped frame structure in the utility model;

[0025] Figure 4 This is a schematic diagram of the installation of the mounting seat structure in the utility model.

[0026] In the figure: 01, installation cavity; 1, base plate; 11, stand; 111, first shaft; 112, second shaft; 113, third shaft; 12, suspension; 121, threaded hole; 122, guide hole; 2, first pressure roller; 3, U-shaped frame; 31, adjustment screw; 311, screw handle; 32, guide limit rod; 4, second pressure roller; 5, driving mechanism; 51, rotating shaft; 52, first pulley group; 53, second pulley group; 54, mounting seat; 55, driving motor. DETAILED DESCRIPTION

[0027] 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 in 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.

[0028] See also Figure 1-Figure 4 The utility model provides a calender for rubber sheet production, comprising a base plate 1, three pairs of frames 11 are respectively arranged above the base plate 1 along the conveying direction of the rubber material, a first shaft 111 is rotatably installed between the two frames 11 at the most downstream side, a second shaft 112 is rotatably installed between the two frames 11 in the middle, and a third shaft 113 is rotatably installed between the two frames 11 at the most upstream side; the first shaft 111, the second shaft 112 and the third shaft 113 are all fixedly sleeved with a first pressing roller 2 on the outside; a driving mechanism 5 is arranged on one side above the base plate 1, and the driving mechanism 5 is used to bring The first shaft 111, the second shaft 112 and the third shaft 113 are driven to rotate in the same direction at the same time; the second roller 4 is rotatably installed between the two upright frames 11 on the opposite sides and above the first roller 2 through the U-shaped frame 3; the distance between the first roller 2 on the first shaft 111 and the second roller 4 above it is defined as X, the distance between the first roller 2 on the second shaft 112 and the second roller 4 above it is defined as Y, and the distance between the first roller 2 on the third shaft 113 and the second roller 4 above it is defined as Z, and the size relationship of X, Y, and Z is Z>Y>Z.

[0029] When the rubber material is calendered into a rubber sheet product, the rubber material is passed through three groups of first pressing rollers 2 and second pressing rollers 4 from the upstream side to the downstream side in sequence, and the driving mechanism 5 works, and at the same time, the first shaft 111, the second shaft 112 and the third shaft 113 are driven to rotate in the same direction, thereby driving the three first pressing rollers 2 to rotate, and the rubber material can be transported simultaneously. In the conveying direction, three calendering positions are formed by using the first pressing rollers 2 and the second pressing rollers 4, and the rubber material can be calendered three times, so that the bubbles in the rubber material can be pressed out to the greatest extent, thereby ensuring the molding quality of the rubber sheet.

[0030] Specifically, the driving mechanism 5 includes a first pulley group 52, a second pulley group 53, a mounting seat 54 and a driving motor 55; the sides of the three uprights 11 on the same side above the base plate 1 are all rotatably mounted with rotating shafts 51, and the three rotating shafts 51 are fixedly connected to the first shaft 111, the second shaft 112 and the third shaft 113 respectively; the rotating shaft 51 fixed to the first shaft 111 and the rotating shaft 51 fixed to the second shaft 112 are connected by transmission via the first pulley group 52; the rotating shaft 51 fixed to the second shaft 112 and the rotating shaft 51 fixed to the third shaft 113 are connected by transmission via the second pulley group 53; the driving motor 55 is fixed to the side of one of the uprights 11 on the upstream side through the mounting seat 54, and the output shaft of the driving motor 55 is fixedly connected to the rotating shaft 51 fixed to the third shaft 113. By driving the motor 55, its output shaft drives the rotating shaft 51 fixedly connected to the third shaft rod 113 to rotate, and under the transmission action of the second pulley group 53, it can drive the rotating shaft 51 fixed to the second shaft rod 112 to rotate, and under the transmission action of the first pulley group 52, it can drive the rotating shaft 51 fixed to the first shaft rod 111 to rotate, thereby driving the first shaft rod 111, the second shaft rod 112 and the third shaft rod 113 to rotate, ensuring that the three first pressure rollers 2 can rotate in the same direction at the same time, thereby improving the conveying effect of the rubber material.

[0031] Specifically, the mounting seat 54 is fixed to one side of the stand 11 in a horizontal U shape, and a mounting cavity 01 for mounting the second pulley set 53 and the rotating shaft 51 is formed between the mounting seat 54 and the stand 11. By designing the mounting seat 54 in a U shape and horizontally mounting it on the side of the stand 11, a mounting cavity 01 can be formed between the stand 11, thereby making room for the arrangement of the second pulley set 53 and the rotating shaft 51.

[0032] Specifically, the tops of the two upright frames 11 on the opposite sides are fixed with a suspension 12, and the middle part of the suspension 12 is provided with a threaded hole 121 that passes through from top to bottom; the inner thread of the threaded hole 121 is matched with an adjusting screw 31, and the lower end of the adjusting screw 31 extends through to the bottom of the suspension 12 and is rotatably connected to the top of the U-shaped frame 3. By screwing the adjusting screw 31 forward and backward, the adjusting screw 31 can be raised and lowered under the threaded cooperation of the adjusting screw 31 and the threaded hole 121, thereby driving the second pressing roller 4 to be raised and lowered, so as to adjust the spacing between the second pressing roller 4 and the first pressing roller 2, so as to adapt to the processing of rubber sheets of different thicknesses. At the same time, the heights of the three second pressing rollers 4 can be adjusted separately, and then the spacing of the three pressing roller groups can be adjusted separately, which is highly practical.

[0033] Specifically, the suspension 12 is further provided with a guide hole 122 which passes through from top to bottom, and a guide limit rod 32 which can slide vertically is installed in each of the guide holes 122; the bottom end of the guide limit rod 32 is fixedly connected to the top of the U-shaped frame 3. By fixing the bottom end of the guide limit rod 32 which is slidably installed in the guide hole 122 to the U-shaped frame 3, a limiting guide function can be provided to the U-shaped frame 3, so as to prevent the U-shaped frame 3 from rotating synchronously with the adjusting screw 31.

[0034] Specifically, the upper end of the adjusting screw 31 extends above the suspension 12 and is provided with a screw handle 311. By turning the screw handle 311 at the top of the adjusting screw 31, the adjusting screw 31 can be screwed and adjusted by holding the screw handle 311.

[0035] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A calender for producing rubber sheets, comprising a base plate (1), characterized in that: Three pairs of vertical frames (11) are respectively arranged above the base plate (1) along the conveying direction of the rubber material, a first shaft (111) is rotatably mounted between the two vertical frames (11) at the most downstream side, a second shaft (112) is rotatably mounted between the two vertical frames (11) at the middle, and a third shaft (113) is rotatably mounted between the two vertical frames (11) at the most upstream side; The first shaft (111), the second shaft (112) and the third shaft (113) are all fixedly sleeved with a first pressing roller (2); A driving mechanism (5) is provided on one side above the base plate (1), and the driving mechanism (5) is used to drive the first shaft (111), the second shaft (112) and the third shaft (113) to rotate simultaneously in the same direction; A second pressing roller (4) is rotatably mounted between the two upright frames (11) on opposite sides and above the first pressing roller (2) via a U-shaped frame (3); The distance between the first pressure roller (2) on the first shaft (111) and the second pressure roller (4) above it is defined as X, the distance between the first pressure roller (2) on the second shaft (112) and the second pressure roller (4) above it is defined as Y, and the distance between the first pressure roller (2) on the third shaft (113) and the second pressure roller (4) above it is defined as Z, and the size relationship of X, Y, and Z is Z>Y>Z.

2. A calender for producing rubber sheets according to claim 1, characterized in that: The driving mechanism (5) comprises a first belt pulley set (52), a second belt pulley set (53), a mounting seat (54) and a driving motor (55); The side parts of the three upright frames (11) on the same side above the base plate (1) are all rotatably mounted with rotating shafts (51), and the three rotating shafts (51) are correspondingly fixedly connected to the first shaft rod (111), the second shaft rod (112) and the third shaft rod (113); The rotating shaft (51) fixed to the first shaft (111) and the rotating shaft (51) fixed to the second shaft (112) are transmission-connected via the first belt pulley set (52); The rotating shaft (51) fixed to the second shaft (112) and the rotating shaft (51) fixed to the third shaft (113) are transmission-connected via the second belt pulley set (53); The drive motor (55) is fixed to the side of one of the uprights (11) on the upstream side via the mounting seat (54), and the output shaft of the drive motor (55) is fixedly connected to the rotating shaft (51) fixed to the third shaft (113).

3. A calender for producing rubber sheets according to claim 2, characterized in that: The mounting seat (54) is in a horizontal U-shape and is fixed to one side of the vertical frame (11); a mounting cavity (01) for mounting the second pulley set (53) and the rotating shaft (51) is formed between the mounting seat (54) and the vertical frame (11).

4. A calender for producing rubber sheets according to claim 1, characterized in that: A suspension (12) is fixed to the top of the two upright frames (11) on opposite sides, and a threaded hole (121) penetrating from top to bottom is provided in the middle of the suspension (12); An adjusting screw rod (31) is matched and installed in the internal thread of the threaded hole (121); the lower end of the adjusting screw rod (31) extends through and extends to the bottom of the suspension (12) and is rotatably connected to the top of the U-shaped frame (3).

5. A calender for producing rubber sheets according to claim 4, characterized in that: The suspension (12) is also provided with a guide hole (122) which passes through the guide hole (122) and a guide limit rod (32) which can slide vertically is installed in each of the guide holes (122); The bottom end of the guide limiting rod (32) is fixedly connected to the top of the U-shaped frame (3).

6. A calender for producing rubber sheets according to claim 4, characterized in that: The upper end of the adjusting screw rod (31) extends above the suspension bracket (12) and is provided with a screw handle (311).

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