Rubber production calender

Abstract

The utility model provides a calender for rubber production relates to rubber production technical field, the utility model discloses a base, is fixedly connected with the mounting bracket on the base, is rotatively connected with first extrusion roller on the mounting bracket through bearing, is provided with the portal frame on the mounting bracket, is rotatively connected with second extrusion roller on the portal frame through bearing, is provided with the limit structure on the base, the limit structure mainly comprises two sliding slots, two the sliding slot all are established on the base, two the sliding slot are commonly slidably connected with two limit plates, is established in the sliding slot on the limit plate, is slidably connected with the adjusting plate in the sliding slot, the utility model solves the problem that the product size accuracy is affected because of lacking effective lateral restriction measure, and rubber is easy to flow and spread in the transverse direction unnecessarily, and this transverse flow can lead to the edge of rubber product to be irregular, and the width is difficult to control accurately.

Description

Technical Field

[0001] This utility model relates to the field of rubber production technology, and in particular to a calender for rubber production. Background Technology

[0002] Rubber calendering is an important process in rubber processing. Its purpose is to process the compounded rubber into products such as sheets or cloths with a certain thickness, width and surface shape by passing them through the rollers of a calender. In this process, the rubber material is deformed under the extrusion and stretching of the rollers. At the same time, it is necessary to precisely control the flow of the rubber and the forming direction to ensure the quality and specifications of the product.

[0003] During the rubber calendering process, the flowability of rubber is affected by a variety of factors, such as rubber formulation, temperature, roller speed and pressure. Due to the lack of effective lateral restraint measures, rubber is prone to unnecessary flow and diffusion in the transverse direction (perpendicular to the calendering direction). This transverse flow will cause the edges of rubber products to be uneven, the width to be difficult to control precisely, and affect the dimensional accuracy of the products. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a calender for rubber production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a calender for rubber production, comprising a base, a mounting frame fixedly connected to the base, a first extrusion roller rotatably connected to the mounting frame via bearings, a gantry frame provided on the mounting frame, a second extrusion roller rotatably connected to the gantry frame via bearings, a limiting structure provided on the base, the limiting structure mainly consisting of two sliding grooves, both of which are formed on the base, two limiting plates slidably connected in the two sliding grooves, sliding grooves provided on the limiting plates, adjusting plates slidably connected in the sliding grooves, and arc-shaped grooves provided on both the limiting plates and the adjusting plates, with a plurality of ball bearings arranged in the arc-shaped grooves.

[0006] The aforementioned components achieve the following effects: the first and second extrusion rollers rotate in opposite directions to extrude rubber; two limiting plates and an adjusting plate limit the rubber on both sides; two arc-shaped grooves are respectively engaged on the first and second extrusion rollers; the ball bearings reduce friction with the first and second extrusion rollers, preventing interference with their rotation; and the two limiting plates can slide to adjust the width according to the rubber width. Furthermore, the adjusting plate can slide to accommodate the rubber thickness, thus avoiding unnecessary flow and diffusion of the rubber in the lateral direction due to a lack of effective lateral restraints. This lateral flow can lead to uneven edges on rubber products and difficulty in precisely controlling the width, ultimately affecting the dimensional accuracy of the product.

[0007] Preferably, the limiting plate has two circular grooves, and a circular rod is slidably connected in the circular grooves. The circular rod is fixedly connected to the adjusting plate.

[0008] The effect achieved by the above components is that the round rod slides within the round groove, making the movement of the adjusting plate more stable.

[0009] Preferably, a spring is fixedly connected to the round rod, and one end of the spring is fixedly connected to the inner wall of the round groove.

[0010] The effect achieved by the above components is as follows: when the first and second extrusion rollers are brought close together, the adjusting plate will be pushed to slide downwards, thus compressing the spring. When the second extrusion roller moves upwards, the adjusting plate will move upwards under the action of the spring's rebound force, so that it can automatically adapt and make the operation more convenient.

[0011] Preferably, a bidirectional screw is rotatably connected to one of the grooves via a bearing. The bidirectional screw is threadedly connected to two limiting plates. The two sections of the bidirectional screw have opposite thread directions. A first motor is fixedly connected to the base, and the bidirectional screw is driven to rotate by the first motor.

[0012] The effect achieved by the above components is as follows: the output end of the first motor is connected to the bidirectional screw through the reducer and coupling. The model of the first motor is 17HS4401. First, the power is turned on to power the control system of the first motor. Then, the first motor is started, which can drive the bidirectional screw to rotate, thereby driving the two limit plates to slide synchronously in opposite directions, making the operation more convenient.

[0013] Preferably, the base is provided with an adjustment structure, which is mainly composed of a cylinder. The cylinder is fixedly connected to the mounting frame, and the piston rod of the cylinder is fixedly connected to the gantry frame.

[0014] The effect achieved by the above components is as follows: the cylinder model is Rexroth VE2 / D-60. The start cylinder can drive the gantry to move up and down, thereby adjusting the distance between the first extrusion roller and the second extrusion roller to adapt to different processing thicknesses.

[0015] Preferably, two sliding rods are fixedly connected to the gantry frame, and the sliding rods are slidably connected to the mounting frame.

[0016] The effect achieved by the above components is that the two sliding rods slide at the upper limit of the mounting frame, making the movement of the gantry frame more stable.

[0017] Preferably, a first bevel gear is fixedly connected to one end of both the first and second extrusion rollers, and a second bevel gear is meshed with the first bevel gear. A rotating rod is rotatably connected to the base via a bearing, and a sliding rod is slidably inserted on the rotating rod. The sliding rod is rotatably connected to the gantry frame.

[0018] The effect achieved by the above components is as follows: the rotation of the first extrusion roller will drive the rotation of a first bevel gear, which in turn drives the rotation of a second bevel gear, causing the rotating rod to rotate accordingly. Thus, the two second bevel gears cause the two first bevel gears to rotate synchronously in opposite directions, that is, the first extrusion roller and the second extrusion roller rotate synchronously in opposite directions. The sliding rod slides at the upper limit of the rotating rod to adapt to the position adjustment of the second extrusion roller.

[0019] Preferably, a second motor is fixedly connected to the mounting frame, and the first extrusion roller is driven to rotate by the second motor.

[0020] The effect achieved by the above components is as follows: the output end of the second motor is connected to the first extrusion roller through a reducer and a coupling. The model of the second motor is Y2-160m1-8. First, the power supply is turned on to power the control system of the second motor. Then, the second motor is started to drive the first extrusion roller to rotate.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a limiting structure, the first and second extrusion rollers are rotated in the opposite direction to extrude rubber. The two limiting plates and the adjusting plate can limit the two sides of the rubber. The two arc-shaped grooves are respectively locked on the first and second extrusion rollers. The ball bearings can reduce the friction between themselves and the first and second extrusion rollers, preventing them from affecting the rotation of the first and second extrusion rollers. The two limiting plates can be slidable to adjust the width according to the rubber. The adjusting plate can also be slidable to adapt to the thickness of the rubber. This avoids the situation where the rubber easily flows and spreads unnecessarily in the lateral direction due to the lack of effective lateral limiting measures. Such lateral flow will cause the edges of the rubber products to be uneven and the width to be difficult to control accurately, thus affecting the dimensional accuracy of the product. Attached Figure Description

[0022] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a calender for rubber production;

[0023] Figure 2 A partial schematic diagram of a limiting structure for a rubber calendering machine is provided for this utility model.

[0024] Figure 3 This utility model provides another schematic diagram of a limiting structure for a calender used in rubber production;

[0025] Figure 4This utility model proposes a calender for rubber production. Figure 2 Enlarged view of section A;

[0026] Figure 5 This utility model proposes a calender for rubber production. Figure 1 Enlarged view of section B.

[0027] Legend: 1. Base; 2. Mounting frame; 3. First extrusion roller; 4. Gantry frame; 5. Second extrusion roller; 6. Limiting structure; 61. Slide groove; 62. Limiting plate; 63. Sliding groove; 64. Adjusting plate; 65. Arc groove; 66. Ball bearing; 67. Circular groove; 68. Circular rod; 69. Spring; 610. Bidirectional screw; 611. First motor; 7. Adjusting structure; 71. Cylinder; 72. Slide rod; 73. First bevel gear; 74. Second bevel gear; 75. Rotating rod; 76. Sliding rod; 77. Second motor. Detailed Implementation

[0028] Example 1, such as Figure 1 As shown, a calender for rubber production includes a base 1, a mounting frame 2 fixedly connected to the base 1, a first extrusion roller 3 rotatably connected to the mounting frame 2 via bearings, a gantry frame 4 mounted on the mounting frame 2, and a second extrusion roller 5 rotatably connected to the gantry frame 4 via bearings.

[0029] Reference Figures 2 to 4A limiting structure 6 is provided on the base 1. The limiting structure 6 mainly consists of two sliding grooves 61, both of which are formed on the base 1. Two limiting plates 62 are slidably connected in the two sliding grooves 61. Sliding grooves 63 are formed on the limiting plates 62, and adjusting plates 64 are slidably connected in the sliding grooves 63. Arc-shaped grooves 65 are formed on both the limiting plates 62 and the adjusting plates 64, and several balls 66 are set in the arc-shaped grooves 65. The first extrusion roller 3 and the second extrusion roller 5 are rotated in opposite directions to extrude rubber. The two limiting plates 62 and the adjusting plates 64 can limit the two sides of the rubber. The two arc-shaped grooves 65 are respectively engaged with the first extrusion roller 3 and the second extrusion roller 5. On rollers 3 and 5, the balls 66 reduce friction with the first and second extrusion rollers 3 and 5, preventing interference with their rotation. Two sliding limit plates 62 allow for width adjustment based on the rubber thickness, and a sliding adjustment plate 64 accommodates the rubber thickness. This prevents unnecessary lateral flow and diffusion of the rubber due to a lack of effective lateral restraint, which can lead to uneven edges and difficulty in precise width control, affecting dimensional accuracy. The limit plates 62 have two circular grooves 67. A round rod 68 is slidably connected in section 7, and the round rod 68 is fixedly connected to the adjusting plate 64. The round rod 68 slides within the circular groove 67, making the movement of the adjusting plate 64 more stable. A spring 69 is fixedly connected to the round rod 68, and one end of the spring 69 is fixedly connected to the inner wall of the circular groove 67. When the first extrusion roller 3 and the second extrusion roller 5 are brought close together, the adjusting plate 64 will be pushed to slide downward, thus compressing the spring 69. When the second extrusion roller 5 moves upward, the adjusting plate 64 will move upward under the action of the spring force of the spring 69, so that it can automatically adapt and make the operation more convenient. A bearing is used to rotate the sliding groove 61. A bidirectional screw 610 is connected to two limit plates 62 by threads. The two threads on the bidirectional screw 610 are in opposite directions. A first motor 611 is fixedly connected to the base 1. The bidirectional screw 610 is driven to rotate by the first motor 611. The output end of the first motor 611 is connected to the bidirectional screw 610 through a reducer and a coupling. The model of the first motor 611 is 17HS4401. First, the power is turned on to power the control system of the first motor 611. Then, the first motor 611 is started, which can drive the bidirectional screw 610 to rotate, thereby driving the two limit plates 62 to slide synchronously in opposite directions, making the operation more convenient.

[0030] Reference Figure 1 and Figure 5An adjustment structure 7 is provided on the base 1, which mainly consists of a cylinder 71. The cylinder 71 is fixedly connected to the mounting frame 2, and the piston rod of the cylinder 71 is fixedly connected to the gantry frame 4. The cylinder 71 is a Rexroth VE2 / D-60. Activating the cylinder 71 can drive the gantry frame 4 to move up and down, thereby adjusting the distance between the first extrusion roller 3 and the second extrusion roller 5 to accommodate different processing thicknesses. Two sliding rods 72 are fixedly connected to the gantry frame 4 and are slidably connected to the mounting frame 2. The two sliding rods 72 slide at the upper limit of the mounting frame 2, making the movement of the gantry frame 4 more stable. A first bevel gear 73 is fixedly connected to one end of both the first extrusion roller 3 and the second extrusion roller 5. A second bevel gear 74 is meshed with the first bevel gear 73. A rotating rod 75 is rotatably connected to the base 1 via a bearing, and a sliding rod is slidably inserted into the rotating rod 75. 76. The sliding rod 76 is rotatably connected to the gantry frame 4. The rotation of the first extrusion roller 3 will drive the first bevel gear 73 to rotate, which in turn drives the second bevel gear 74 to rotate, causing the rotating rod 75 to rotate accordingly. Therefore, the two first bevel gears 73 rotate synchronously in opposite directions through the two second bevel gears 74, that is, the first extrusion roller 3 and the second extrusion roller 5 rotate synchronously in opposite directions. The sliding rod 76 slides at the upper limit of the rotating rod 75 to adapt to the position adjustment of the second extrusion roller 5. The second motor 77 is fixedly connected to the mounting frame 2. The first extrusion roller 3 is driven to rotate by the second motor 77. The output end of the second motor 77 is connected to the first extrusion roller 3 through a reducer and a coupling. The model of the second motor 77 is Y2-160m1-8. First, the power is turned on to power the control system of the second motor 77, and then the second motor 77 is started to drive the first extrusion roller 3 to rotate.

[0031] Working principle: The first extrusion roller 3 and the second extrusion roller 5 rotate in opposite directions to extrude rubber. Two limiting plates 62 and an adjusting plate 64 limit the rubber on both sides. Two arc-shaped grooves 65 are respectively engaged on the first extrusion roller 3 and the second extrusion roller 5. The ball bearing 66 reduces friction with the first extrusion roller 3 and the second extrusion roller 5, preventing interference with their rotation. The two limiting plates 62 can slide to adjust the width according to the rubber width, and the adjusting plate 64 can slide to adapt to the rubber thickness. This avoids unnecessary lateral flow of the rubber due to the lack of effective lateral restraint measures. This lateral flow, including diffusion, can cause uneven edges on rubber products and make it difficult to precisely control the width, thus affecting the dimensional accuracy of the product. The circular rod 68 slides within the circular groove 67, making the movement of the adjusting plate 64 more stable. When the first extrusion roller 3 and the second extrusion roller 5 approach each other, the adjusting plate 64 slides downwards, thus compressing the spring 69. When the second extrusion roller 5 moves upwards, the adjusting plate 64 moves upwards under the rebound force of the spring 69, allowing it to automatically adapt and making operation more convenient. The output end of the first motor 611 is connected to the bidirectional screw 610 via a reducer and coupling. The model of motor 611 is 17HS4401. First, the power is connected to power the control system of the first motor 611. Then, starting the first motor 611 drives the bidirectional screw 610 to rotate, which in turn drives the two limit plates 62 to slide synchronously in opposite directions, making the operation more convenient. The model of cylinder 71 is Rexroth VE2 / D-60. Starting cylinder 71 drives the gantry 4 to move up and down, thereby adjusting the distance between the first extrusion roller 3 and the second extrusion roller 5 to adapt to different processing thicknesses. The two slide bars 72 slide at the upper limit of the mounting frame 2, making the movement of the gantry 4 more stable. The rotation of the first extrusion roller 3 drives a first bevel gear. The rotation of 73 drives the rotation of a second bevel gear 74, which in turn causes the rotating rod 75 to rotate. Thus, the two second bevel gears 74 cause the two first bevel gears 73 to rotate synchronously in opposite directions, that is, the first extrusion roller 3 and the second extrusion roller 5 rotate synchronously in opposite directions. The sliding rod 76 slides at the upper limit of the rotating rod 75 to adapt to the position adjustment of the second extrusion roller 5. The output end of the second motor 77 is connected to the first extrusion roller 3 through a reducer and a coupling. The model of the second motor 77 is Y2-160m1-8. First, the power is turned on to power the control system of the second motor 77, and then the second motor 77 is started to drive the first extrusion roller 3 to rotate.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A calender for rubber production, comprising a base (1), characterized in that: A mounting frame (2) is fixedly connected to the base (1). A first extrusion roller (3) is rotatably connected to the mounting frame (2) via a bearing. A gantry frame (4) is provided on the mounting frame (2). A second extrusion roller (5) is rotatably connected to the gantry frame (4) via a bearing. A limiting structure (6) is provided on the base (1). The limiting structure (6) is mainly composed of two sliding grooves (61). Both sliding grooves (61) are opened on the base (1). Two limiting plates (62) are slidably connected in both sliding grooves (61). A sliding groove (63) is opened on the limiting plate (62). An adjusting plate (64) is slidably connected in the sliding groove (63). An arc-shaped groove (65) is opened on both the limiting plate (62) and the adjusting plate (64). Several balls (66) are provided in the arc-shaped groove (65).

2. The calender for rubber production according to claim 1, characterized in that: The limiting plate (62) has two circular grooves (67), and a circular rod (68) is slidably connected in the circular grooves (67). The circular rod (68) is fixedly connected to the adjusting plate (64).

3. The calender for rubber production according to claim 2, characterized in that: A spring (69) is fixedly connected to the round rod (68), and one end of the spring (69) is fixedly connected to the inner wall of the round groove (67).

4. The calender for rubber production according to claim 3, characterized in that: A bidirectional screw (610) is rotatably connected to a slide groove (61) via a bearing. The bidirectional screw (610) is threadedly connected to two limiting plates (62). The two threads on the bidirectional screw (610) are in opposite directions. A first motor (611) is fixedly connected to the base (1). The bidirectional screw (610) is driven to rotate by the first motor (611).

5. The calender for rubber production according to claim 4, characterized in that: An adjustment structure (7) is provided on the base (1). The adjustment structure (7) is mainly composed of a cylinder (71). The cylinder (71) is fixedly connected to the mounting frame (2), and the piston rod of the cylinder (71) is fixedly connected to the gantry frame (4).

6. The calender for rubber production according to claim 5, characterized in that: Two sliding rods (72) are fixedly connected to the gantry frame (4), and the sliding rods (72) are slidably connected to the mounting frame (2).

7. The calender for rubber production according to claim 6, characterized in that: One end of the first extrusion roller (3) and the second extrusion roller (5) are fixedly connected to a first bevel gear (73), and a second bevel gear (74) is meshed on the first bevel gear (73). A rotating rod (75) is rotatably connected to the base (1) through a bearing. A sliding rod (76) is slidably inserted on the rotating rod (75), and the sliding rod (76) is rotatably connected to the gantry frame (4).

8. The calender for rubber production according to claim 7, characterized in that: A second motor (77) is fixedly connected to the mounting bracket (2), and the first extrusion roller (3) is driven to rotate by the second motor (77).

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