Two roll transmission mechanism for rubber calender

Abstract

This utility model relates to the technical field of rubber production equipment, and in particular to a two-roll transmission mechanism for a rubber calender. In operation, starting the motor causes the first rotating shaft to drive the first calendering roller to rotate. Simultaneously, the first rotating shaft, through a transmission assembly, drives the second calendering roller assembly to rotate synchronously in opposite directions with the first calendering roller. The first and second calendering roller assemblies cooperate to calender the rubber, improving adjustment efficiency. The mechanism includes a frame, a motor, a first rotating shaft, and a first calendering roller. The first rotating shaft is rotatably mounted inside the frame, and the first calendering roller is mounted on the first rotating shaft. The motor is installed on the outer wall of the frame, and its output end is connected to the first end of the first rotating shaft. The mechanism also includes a transmission assembly and a second calendering roller assembly. The second calendering roller assembly is fixedly and slidably mounted up and down inside the frame. The first rotating shaft drives the second calendering roller assembly to rotate synchronously in opposite directions through the transmission assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber production equipment, and in particular to a two-roll drive mechanism for a rubber calender. Background Technology

[0002] A calender is a machine that presses rubber into sheets of a certain thickness. According to the number of calendering rolls, it can generally be divided into two-roll, three-roll, four-roll, and five-roll calenders. In the production process of rubber for aircraft tires, calenders are required for processing.

[0003] In the prior art, patent document CN222933177U discloses a two-roll drive mechanism for a rubber calender, including a frame with mounting grooves on both sides, a first calender roll and a second calender roll, with a first bearing seat and a second bearing seat respectively at their ends. The first bearing seat and the second bearing seat are located within the mounting grooves, and the first bearing seat is slidably connected to the mounting grooves. A first bevel gear is provided at one end of the first calender roll, and a second bevel gear is provided at one end of the second calender roll. A first support plate and a second support plate are respectively provided on the sides of the first bearing seat and the second bearing seat that are close to each other. The first support plate and the second support plate are rotatably connected to a first rotating shaft and a second rotating shaft, respectively. A third bevel gear meshing with the first bevel gear is provided on the first rotating shaft, and a fourth bevel gear meshing with the second bevel gear is provided on the second rotating shaft. The first rotating shaft and the second rotating shaft are slidably connected. In this invention, the rotational speeds of the first calender roll and the second calender roll are always equal.

[0004] During use, it was found that when the above-mentioned device adjusts the distance between the first and second calendering rolls, the first shaft and the cylinder need to be precisely adjusted in length because the first bevel gear meshes with the third bevel gear. This can easily lead to poor meshing stability between the first and third bevel gears. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a two-roll drive mechanism for a rubber calender.

[0006] This utility model discloses a two-roll transmission mechanism for a rubber calender, comprising a frame, a motor, a first rotating shaft, and a first calendering roll. The first rotating shaft is rotatably mounted inside the frame, and the first calendering roll is mounted on the first rotating shaft. The motor is installed on the outer wall of the frame, and its output end is connected to the first end of the first rotating shaft. The mechanism also includes a transmission assembly and a second calendering roll assembly. The second calendering roll assembly is fixedly and slidably mounted vertically inside the frame. The first rotating shaft drives the second calendering roll assembly to rotate synchronously in opposite directions via the transmission assembly. In operation, the motor is started, causing the first rotating shaft to drive the first calendering roll to rotate. Simultaneously, the first rotating shaft, through the transmission assembly, drives the second calendering roll assembly to rotate synchronously in opposite directions with the first calendering roll. The first and second calendering roll assemblies cooperate to calender the rubber. When adjusting the distance between the second and first calendering roll assemblies, the transmission assembly makes a rapid adjustment, improving adjustment efficiency.

[0007] Preferably, the No. 2 calendering roll assembly includes lifting blocks, lead screws, handwheels, a No. 2 rotating shaft, the No. 2 calendering roll body, and nuts. A set of strip-shaped openings is provided at each of the left and right ends of the frame. A set of lifting blocks is installed in each set of strip-shaped openings. A set of lead screws is rotatably mounted on the top of each set of lifting blocks, and the lead screws are threaded to the frame. A set of handwheels is installed on the top of each set of lead screws. The No. 2 rotating shaft is rotatably installed between the two sets of lifting blocks. The No. 2 calendering roll body is mounted on the No. 2 rotating shaft, and the lead screws are threaded to the two sets of nuts. When the height of the No. 2 calendering roll body needs to be adjusted, the operator rotates the lead screws using the handwheels, thereby adjusting the height of the two sets of lifting blocks in the corresponding strip-shaped openings, thus adjusting the distance between the No. 2 calendering roll body and the No. 1 calendering roll. After adjustment, the nuts are tightened to lock the lead screws, improving flexibility and stability.

[0008] Preferably, the transmission assembly includes a first gear, a first rotating shaft, a second gear, a second sprocket, a first sprocket, an electric push rod, a moving block, a chain, a fixed plate, and a third sprocket. A first gear is mounted at the second end of the first rotating shaft. A first rotating shaft is rotatably mounted on the frame. A second gear and a second sprocket are mounted on the first rotating shaft. A first sprocket is mounted at the second end of the second rotating shaft. The second sprocket and the first sprocket are driven by a chain. The second gear meshes with the first gear. A fixed plate is fixedly mounted on the frame, and an electric push rod is mounted on the fixed plate. A moving block is mounted at the moving end of the electric push rod, and a third sprocket is rotatably mounted on the moving block. The third sprocket meshes with the chain. When the distance between the main body of the first and second calender rolls is adjusted, the distance between the second and first sprockets changes. The operator extends or shortens the electric push rod, causing the third sprocket to tighten the chain again. The first shaft drives the first gear to rotate, which in turn drives the second sprocket to rotate. Since the second and first sprockets are driven by the chain, the first sprocket drives the main body of the second calender roll to rotate synchronously in opposite directions with the first calender roll. The main body of the second calender roll and the first calender roll cooperate to calender the rubber, improving flexibility.

[0009] Preferably, it also includes a light bar, which is provided on the movable block and is slidably disposed with respect to the fixed plate; the electric push rod drives the No. 3 sprocket to adjust its position under the guidance of the light bar, thereby improving stability.

[0010] Preferably, it also includes a reinforcing plate, and a reinforcing plate is provided between the frame and the fixing plate; the frame and the fixing plate are strengthened by the reinforcing plate to improve the connection strength.

[0011] Preferably, it also includes an annular flat washer, and the lead screw is fitted with an annular flat washer; the nut increases the contact area with the frame through the annular flat washer, thereby improving the locking firmness.

[0012] Preferably, the outer wall of the first calender roll is provided with an anti-slip coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the motor is started, which causes the No. 1 rotating shaft to drive the No. 1 calendering roller to rotate. At the same time, the No. 1 rotating shaft drives the No. 2 calendering roller assembly to rotate synchronously in opposite directions with the No. 1 calendering roller through the transmission assembly. The No. 1 calendering roller and the No. 2 calendering roller assembly cooperate to calender the rubber. When adjusting the distance between the No. 2 calendering roller assembly and the No. 1 calendering roller, the transmission assembly makes a rapid adjustment, which improves the adjustment efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the present invention;

[0016] Figure 3 This is an enlarged structural diagram of the No. 1 calendering roll and the motor, etc.

[0017] Figure 4 This is an enlarged structural diagram of the lead screw and the main body of the No. 2 calendering roll, etc.

[0018] Figure 5 This is an enlarged structural diagram of the electric actuator and the No. 3 sprocket, among other components.

[0019] The following are labels in the attached diagram: 1. Frame; 2. Motor; 3. Shaft No. 1; 4. Calendering Roll No. 1; 5. Lifting Block; 6. Lead Screw; 7. Handwheel; 8. Shaft No. 2; 9. Calendering Roll No. 2 Body; 10. Nut; 11. Gear No. 1; 12. Shaft No. 1; 13. Gear No. 2; 14. Sprocket No. 2; 15. Sprocket No. 1; 16. Electric Push Rod; 17. Moving Block; 18. Chain; 19. Fixing Plate; 20. Guide Bar; 21. Reinforcing Plate; 22. Annular Flat Washer; 23. Sprocket No. 3. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, the present invention discloses a two-roll transmission mechanism for a rubber calender, comprising a frame 1, a motor 2, a first rotating shaft 3, and a first calendering roller 4. The first rotating shaft 3 is rotatably mounted inside the frame 1, and the first calendering roller 4 is mounted on the first rotating shaft 3. The motor 2 is mounted on the outer wall of the frame 1, and the output end of the motor 2 is connected to the first end of the first rotating shaft 3. The invention also includes a transmission assembly and a second calendering roller assembly. The second calendering roller assembly is fixedly and slidably mounted inside the frame 1. The first rotating shaft 3 drives the second calendering roller assembly to rotate synchronously in opposite directions through the transmission assembly.

[0023] like Figure 2 and Figure 4As shown, the No. 2 calendering roll assembly includes a lifting block 5, a lead screw 6, a handwheel 7, a No. 2 rotating shaft 8, a No. 2 calendering roll body 9, and nuts 10. The left and right ends of the frame 1 are respectively provided with a set of strip openings. Each set of strip openings is provided with a set of lifting blocks 5. Each set of lifting blocks 5 is rotatably provided with a set of lead screws 6 at its top. The lead screws 6 are threadedly connected to the frame 1. Each set of lead screws 6 is provided with a set of handwheels 7 at its top. The No. 2 rotating shaft 8 is rotatably installed between the two sets of lifting blocks 5. The No. 2 calendering roll body 9 is provided on the No. 2 rotating shaft 8. The lead screws 6 are respectively threadedly connected to the two sets of nuts 10.

[0024] In this embodiment, during use, the motor 2 is started, which causes the first rotating shaft 3 to drive the first calendering roller 4 to rotate. At the same time, the first rotating shaft 3 drives the second calendering roller assembly to rotate synchronously in opposite directions with the first calendering roller 4 through the transmission assembly. The first calendering roller 4 and the second calendering roller assembly cooperate to calender the rubber. When it is necessary to adjust the height of the second calendering roller body 9, the operator rotates the screw 6 through the handwheel 7, thereby adjusting the height of the two sets of lifting blocks 5 at the corresponding strip openings, thereby adjusting the distance between the second calendering roller body 9 and the first calendering roller 4. After the adjustment is completed, the nut 10 is tightened to lock the screw 6, and the transmission assembly is quickly adjusted.

[0025] Example 2

[0026] like Figures 1 to 5 As shown, the present invention discloses a two-roll transmission mechanism for a rubber calender, comprising a frame 1, a motor 2, a first rotating shaft 3, and a first calendering roller 4. The first rotating shaft 3 is rotatably mounted inside the frame 1, and the first calendering roller 4 is mounted on the first rotating shaft 3. The motor 2 is mounted on the outer wall of the frame 1, and the output end of the motor 2 is connected to the first end of the first rotating shaft 3. The invention also includes a transmission assembly and a second calendering roller assembly. The second calendering roller assembly is fixedly and slidably mounted inside the frame 1. The first rotating shaft 3 drives the second calendering roller assembly to rotate synchronously in opposite directions through the transmission assembly.

[0027] like Figure 2 and Figure 4 As shown, the No. 2 calendering roll assembly includes a lifting block 5, a lead screw 6, a handwheel 7, a No. 2 rotating shaft 8, a No. 2 calendering roll body 9, and a nut 10. The left and right ends of the frame 1 are respectively provided with a set of strip openings. Each set of strip openings is provided with a set of lifting blocks 5. Each set of lifting blocks 5 is rotatably provided with a set of lead screws 6 at its top. The lead screws 6 are threadedly connected to the frame 1. Each set of lead screws 6 is provided with a set of handwheels 7 at its top. The No. 2 rotating shaft 8 is rotatably installed between the two sets of lifting blocks 5. The No. 2 calendering roll body 9 is provided on the No. 2 rotating shaft 8. The lead screws 6 are respectively threadedly connected to the two sets of nuts 10.

[0028] like Figure 2 , Figure 4 and Figure 5As shown, the transmission assembly includes a first gear 11, a first rotating shaft 12, a second gear 13, a second sprocket 14, a first sprocket 15, an electric push rod 16, a moving block 17, a chain 18, a fixed plate 19, and a third sprocket 23. The second end of the first rotating shaft 12 is provided with a first gear 11. The first rotating shaft 12 is rotatably mounted on the frame 1. The first rotating shaft 12 is provided with a second gear 13 and a second sprocket 14. The second end of the second rotating shaft 19 is provided with a first sprocket 15. The second sprocket 14 and the first sprocket 15 are driven by the chain 18. The second gear 13 meshes with the first gear 11. The fixed plate 19 is fixedly mounted on the frame 1. The fixed plate 19 is equipped with an electric push rod 16. The moving end of the electric push rod 16 is provided with a moving block 17. The third sprocket 23 is rotatably mounted on the moving block 17 and meshes with the chain 18.

[0029] It also includes a light bar 20, a reinforcing plate 21 and an annular flat pad 22. The light bar 20 is provided on the moving block 17. The light bar 20 is slidably disposed with the fixed plate 19. The reinforcing plate 21 is provided between the frame 1 and the fixed plate 19. The annular flat pad 22 is fitted on the lead screw 6.

[0030] In this embodiment, during use, motor 2 is started, causing the first rotating shaft 3 to drive the first calendering roller 4 to rotate. Simultaneously, the first rotating shaft 3, through a transmission assembly, drives the second calendering roller assembly to rotate synchronously in opposite directions with the first calendering roller 4. The first calendering roller 4 and the second calendering roller assembly cooperate to calender the rubber. When the height of the second calendering roller body 9 needs to be adjusted, the operator rotates the lead screw 6 via the handwheel 7, thereby adjusting the height of the two sets of lifting blocks 5 at the corresponding strip openings, thus adjusting the distance between the second calendering roller body 9 and the first calendering roller 4. After adjustment... Tighten nut 10 to lock lead screw 6. Operator operates electric push rod 16 to extend or shorten, thereby causing sprocket 23 to tighten chain 18 again. Shaft 3 drives gear 11 to rotate, which in turn drives sprocket 14 to rotate. Since sprocket 14 and sprocket 15 are driven by chain 18, sprocket 15 drives calender roll body 9 and calender roll 4 to rotate synchronously in opposite directions. Calender roll body 9 and calender roll 4 cooperate to calender rubber.

[0031] The motor 2 and electric push rod 16 of the two-roller transmission mechanism of the rubber calender of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A two-roll drive mechanism for a rubber calender, comprising a frame (1), a motor (2), a first rotating shaft (3), and a first calendering roll (4), wherein the first rotating shaft (3) is rotatably arranged inside the frame (1), and the first calendering roll (4) is arranged on the first rotating shaft (3); the motor (2) is mounted on the outer wall of the frame (1), and the output end of the motor (2) is connected to the first end of the first rotating shaft (3), characterized in that, It also includes a transmission assembly and a second calendering roll assembly. The second calendering roll assembly is fixedly and slidably installed inside the frame (1). The first rotating shaft (3) drives the second calendering roll assembly to rotate synchronously in opposite directions through the transmission assembly.

2. The two-roll drive mechanism for a rubber calender as described in claim 1, characterized in that, The No. 2 calendering roll assembly includes a lifting block (5), a lead screw (6), a handwheel (7), a No. 2 rotating shaft (8), the No. 2 calendering roll body (9), and nuts (10). A set of strip openings is provided at the left and right ends of the frame (1). A set of lifting blocks (5) is provided in each set of strip openings. A set of lead screws (6) is rotatably provided at the top of each set of lifting blocks (5). The lead screws (6) are threadedly connected to the frame (1). A set of handwheels (7) is provided at the top of each set of lead screws (6). The No. 2 rotating shaft (8) is rotatably installed between the two sets of lifting blocks (5). The No. 2 calendering roll body (9) is provided on the No. 2 rotating shaft (8). The lead screws (6) are threadedly connected to the two sets of nuts (10).

3. The two-roll drive mechanism of a rubber calender as described in claim 2, characterized in that, The transmission assembly includes a first gear (11), a first rotating shaft (12), a second gear (13), a second sprocket (14), a first sprocket (15), an electric push rod (16), a moving block (17), a chain (18), a fixed plate (19), and a third sprocket (23). The second end of the first rotating shaft (3) is provided with a first gear (11), and the first rotating shaft (12) is rotatably mounted on the frame (1). The first rotating shaft (12) is provided with a second gear (13) and a second sprocket (14). The second end of the second shaft (8) is provided with a first sprocket (15). The second sprocket (14) and the first sprocket (15) are driven by a chain (18). The second gear (13) meshes with the first gear (11). A fixed plate (19) is fixedly installed on the frame (1). An electric push rod (16) is installed on the fixed plate (19). A moving block (17) is provided at the moving end of the electric push rod (16). A third sprocket (23) is rotatably installed on the moving block (17). The third sprocket (23) meshes with the chain (18).

4. The two-roll drive mechanism for a rubber calender as described in claim 3, characterized in that, It also includes a light bar (20), which is provided on the moving block (17) and is slidably disposed with the fixed plate (19).

5. The two-roll drive mechanism for a rubber calender as described in claim 3, characterized in that, It also includes a reinforcing plate (21), which is provided between the frame (1) and the fixing plate (19).

6. The two-roll drive mechanism of a rubber calender as described in claim 2, characterized in that, It also includes an annular flat washer (22), which is fitted onto the lead screw (6).

7. The two-roll drive mechanism for a rubber calender as described in claim 1, characterized in that, The outer wall of the No. 1 calender roll (4) is provided with an anti-slip coating.

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