Three-roller calender for rubber processing

Abstract

The utility model is applicable to the technical field of rubber processing, and provides a rubber processing three-roller calender which comprises a base, a mounting frame is mounted on the base, and a first sliding block and a second sliding block which are driven by hydraulic push rods are mounted on the mounting frame in a sliding manner through a first sliding groove and a second sliding groove. An upper roller and a lower roller which are driven by a motor are rotationally mounted on the first sliding block and the second sliding block respectively, meanwhile, a middle roller driven by a motor is rotationally mounted on the mounting frame, the positions of the upper roller and the lower roller are adjusted through two hydraulic push rods, and the rubber roller is suitable for rubber with different thicknesses; a supporting frame is fixedly installed on a base, two adjusting nuts driven by two bidirectional threaded rods are installed on the supporting frame, fixing frames are installed on the two adjusting nuts through pneumatic push rods, two limiting rollers are rotatably installed on the fixing frames, and the two limiting rollers are close to gaps among an upper roller, a middle roller and a lower roller, so that the moving position of rubber is conveniently limited; manual holding is reduced, the labor intensity is lower, and the device is worthy of application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber processing, in particular to a three-roller calender for rubber processing. Background Art

[0002] In the current rubber processing technology field, rubber processing refers to the process of making rubber into rubber products. The basic process of processing various rubber products includes plasticizing, mixing, calendering or extrusion, molding and vulcanization. Each process has different requirements for the product and is coordinated with several auxiliary operations. The calendering process requires the use of a calender for processing.

[0003] The utility model patent with publication number CN218019729U discloses a rubber three-roll calender, including a frame, a first support seat and a second support seat are arranged on the frame, the second support seat is slidably connected to the frame, a plurality of sliding blocks are slidably connected to the first support seat and the second support seat, a calendering roller is rotatably connected between two opposite sliding blocks, a locking device for fixing the plurality of sliding blocks is arranged on the support frame, a driving device for driving the plurality of calendering rollers to rotate is arranged on the frame, and a fixing device for fixing the second support seat is arranged on the frame. The application has the effect of reducing the time spent on cleaning the calender and improving the convenience of cleaning the calender.

[0004] However, the above patent has the following shortcomings:

[0005] In the above patent, a sliding block is added to facilitate the disassembly and cleaning of the calender. However, when the calender is in use, the rubber raw material needs to pass repeatedly between the rollers. During this process, it needs to be passed manually. Due to the different thickness of the rubber, the labor intensity is high, and the rubber is prone to breakage during transportation between multiple rollers, requiring secondary calendering, which reduces the processing efficiency of the rubber. Utility Model Content

[0006] The utility model provides a three-roll calender for rubber processing, aiming to solve the problem mentioned in the above background that the rubber raw materials need to be repeatedly passed between the pressure rollers, and the manual passing has high labor intensity, and the rubber is easily broken during transportation between multiple pressure rollers, so secondary calendering is required, which reduces the processing efficiency of the rubber.

[0007] The utility model is implemented as follows: a rubber processing three-roll calender comprises a base, on which a calendering assembly is fixedly mounted;

[0008] The calendering assembly includes a "U"-shaped mounting frame, and the mounting frame is fixedly mounted on the base;

[0009] An upper roller, a middle roller and a lower roller are rotatably mounted on the mounting frame, and the upper roller, the middle roller and the lower roller are longitudinally arranged on the mounting frame;

[0010] A limit assembly, comprising a support frame, the support frame is fixedly mounted on the base, and the support frame is arranged on one side of the mounting frame;

[0011] Two adjusting screw nuts are slidably connected in the support frame, and pneumatic push rods are installed on the two adjusting screw nuts. A fixed frame is installed on the telescopic end of the pneumatic push rod, and a limiting roller is rotatably installed on the two fixed frames;

[0012] The discharging assembly is used for discharging rubber, and the discharging assembly is installed on the base.

[0013] Preferably, a bidirectional threaded rod is rotatably mounted on the support frame, and the bidirectional threaded rod is threadedly connected to the two adjusting nuts;

[0014] A driving motor is fixedly mounted on the mounting frame, and the driving motor is connected to the bidirectional threaded rod in a transmission manner. In this solution, the bidirectional threaded rod is driven to rotate by the driving motor, thereby adjusting the positions of the two adjusting nuts, and then adjusting the distance between the two limiting rollers.

[0015] Preferably, a rotating shaft is rotatably mounted on each of the two fixing frames, and a baffle is fixedly mounted on the rotating shaft;

[0016] A gear 1 is fixedly installed at the end of the rotating shaft, and a stepper motor is fixedly installed on the fixed frame, and a gear 2 meshing with the gear 1 is installed at the output end of the stepper motor; in this scheme, the stepper motor drives the rotating shaft to rotate through gear transmission, adjusts the angle of the baffle, and uses the baffle to block the broken rubber, so that it continues to move along the limiting roller and slides into the gap between the middle roller and the lower roller.

[0017] Preferably, a first slide groove and a second slide groove are provided on the inner walls of both sides of the mounting frame;

[0018] Slide blocks are slidably connected in the two slide grooves, both ends of the upper roller are rotatably connected to the slide blocks, and a reduction motor is installed on the slide blocks for transmission connection to the upper rollers;

[0019] Slide blocks 2 are slidably connected in both of the two slide grooves 2, both ends of the lower roller are rotatably connected to the slide blocks 2, and the slide blocks 2 are equipped with reduction motors 2 for transmission connection to the lower roller; in this scheme, reduction motors 1 and 2 can be respectively connected to the upper roller and the lower roller through gear transmission, thereby driving the upper roller and the lower roller to rotate and calender the rubber.

[0020] Preferably, two hydraulic push rods 1 are fixedly mounted on the upper surface of the mounting frame, and the telescopic ends of the two hydraulic push rods 1 are fixedly connected to the corresponding slider 1;

[0021] Two hydraulic push rods 2 are fixedly installed in the base, and the telescopic ends of the two hydraulic push rods 2 are fixedly connected to the corresponding slider 2; in this scheme, the slider 1 and the slider 2 are driven by the hydraulic push rod 1 and the hydraulic push rod 2 to move longitudinally in the slide groove 1 and the slide groove 2, which is convenient for adjusting the distance of the gap between the upper roller, the middle roller and the lower roller, and is suitable for use with rubbers of different thicknesses.

[0022] Preferably, a reduction motor three is fixedly mounted on the mounting frame, and the reduction motor three is transmission-connected to the intermediate roller; in this solution, the reduction motor three can be connected to the intermediate roller through gear transmission to drive the intermediate roller to rotate.

[0023] Preferably, the discharging assembly comprises a discharging rack, and the discharging rack is fixedly mounted on the base;

[0024] The discharging rack is provided with a sliding groove, a sliding block is slidably connected in the sliding groove, a discharging plate is installed on the sliding block, an electric push rod is installed on the discharging rack, and the telescopic end of the electric push rod is fixedly connected to the sliding block; in this scheme, the sliding block is driven by the electric push rod to move longitudinally, and the height of the discharging plate is adjusted so that the discharging plate always maintains the same height with the lower roller.

[0025] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a three-roll calender for rubber processing,

[0026] 1. Slide block 1 and slide block 2 driven by hydraulic push rods are slidably installed on the mounting frame through slide groove 1 and slide groove 2. Upper roller and lower roller driven by motors are respectively installed on slide block 1 and slide block 2. Meanwhile, the middle roller driven by motors is installed on the mounting frame. The positions of upper roller and lower roller are adjusted by two hydraulic push rods, which is suitable for rubbers of different thicknesses.

[0027] 2. The support frame is equipped with two adjusting nuts driven by two bidirectional threaded rods. The two adjusting nuts are equipped with a fixed frame through a pneumatic push rod. Two limit rollers are rotatably installed on the fixed frame. The two limit rollers are close to the gaps between the upper roller, the middle roller and the lower roller to limit the moving position of the rubber and make the broken rubber still slide into the gap between the middle roller and the lower roller. The processing efficiency is higher, and the manual hand support can be reduced. The labor intensity is lower and it is more worthy of promotion and use;

[0028] 3. A discharging rack is installed on the base. The discharging machine is equipped with a sliding block driven by an electric push rod through a sliding groove. A discharging plate is installed on the sliding block. The discharging plate is used to bear the rubber, and the discharging plate and the lower roller can be kept at the same height, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The schematic diagram of the overall structure of this utility model

[0030] Figure 2 Practical Figure 1 Enlarged view of point A in the middle

[0031] Figure 3 Practical Figure 1 Enlarged view of point B

[0032] In the figure:

[0033] 1. Base;

[0034] 2. Calendering assembly; 21. Mounting frame; 211. Slide 1; 212. Slide 2; 22. Upper roller; 221. Slider 1; 222. Speed ​​reducer motor 1; 223. Hydraulic push rod 1; 23. Lower roller; 231. Slider 2; 232. Speed ​​reducer motor 2; 233. Hydraulic push rod 2; 24. Intermediate roller; 241. Speed ​​reducer motor 3;

[0035] 3. Limiting assembly; 31. Support frame; 32. Bidirectional threaded rod; 321. Driving motor; 322. Adjusting nut; 33. Pneumatic push rod; 331. Fixed frame; 34. Limiting roller; 35. Rotating shaft; 351. Gear 1; 352. Baffle; 36. Stepping motor; 361. Gear 2;

[0036] 4. Discharging assembly; 41. Discharging rack; 411. Sliding slot; 42. Discharging plate; 421. Sliding block; 422. Electric push rod. DETAILED DESCRIPTION

[0037] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0038] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0039] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figure 1-3 The utility model provides a technical solution: a rubber processing three-roll calender, comprising a base 1, a calendering assembly 2 is fixedly mounted on the base 1, the calendering assembly 2 comprises a "U"-shaped mounting frame 21, the mounting frame 21 is fixedly mounted on the base 1, an upper roller 22, an intermediate roller 24 and a lower roller 23 are rotatably mounted on the mounting frame 21, the upper roller 22, the intermediate roller 24 and the lower roller 23 are longitudinally arranged on the mounting frame 21, and a slide groove 1 211 and a slide groove 212 are opened on the inner walls of both sides of the mounting frame 21, and the two slide grooves 1 21 1 are both slidably connected with a slider 1 221, both ends of the upper roller 22 are rotatably connected with the slider 1 221, and the slider 1 221 is equipped with a reduction motor 1 222 for transmission connection with the upper roller 22, both slide grooves 212 are slidably connected with a slider 2 231, both ends of the lower roller 23 are rotatably connected with the slider 2 231, and the slider 2 231 is equipped with a reduction motor 2 232 for transmission connection with the lower roller 23, and a reduction motor 3 241 is fixedly installed on the mounting frame 21, and the reduction motor 3 241 is transmission connected with the middle roller 24.

[0043] Among them, the reduction motor 1 222 drives the upper roller 22 to rotate, the reduction motor 232 drives the lower roller 23 to rotate, and the reduction motor 3 241 drives the middle roller 24 to rotate. The rubber slides into the gap between the upper roller 22 and the middle roller 24, is rolled by the upper roller 22 and the middle roller 24, and adheres to the outer wall of the middle roller 24, rotates with the middle roller 24, and slides out from the gap between the middle roller 24 and the lower roller 23.

[0044] Two hydraulic push rods 223 are fixedly installed on the upper surface of the mounting frame 21, and the telescopic ends of the two hydraulic push rods 223 are fixedly connected to the corresponding slider 221, and two hydraulic push rods 233 are fixedly installed in the base 1, and the telescopic ends of the two hydraulic push rods 233 are fixedly connected to the corresponding slider 231.

[0045] Among them, the two hydraulic push rods 1 223 drive the two sliders 1 221 to move longitudinally, and the two hydraulic push rods 233 drive the slider 2 231 to move longitudinally, and adjust the distance between the sliders 1 221 and 231 and the middle roller 24, which is suitable for use with rubbers of different thicknesses.

[0046] The limit assembly 3 includes a support frame 31, which is fixedly mounted on the base 1 and arranged on one side of the mounting frame 21. Two adjusting nuts 322 are slidably connected in the support frame 31. Pneumatic push rods 33 are installed on the two adjusting nuts 322. A fixed frame 331 is installed on the telescopic end of the pneumatic push rod 33. Limit rollers 34 are rotatably mounted on the two fixed frames 331. A bidirectional threaded rod 32 is rotatably mounted on the support frame 31. The bidirectional threaded rod 32 is threadedly connected to the two adjusting nuts 322. A driving motor 321 is fixedly mounted on the support frame 31, and the driving motor 321 is transmission-connected to the bidirectional threaded rod 32.

[0047] Furthermore, the driving motor 321 drives the bidirectional threaded rod 32 to rotate, thereby driving the two adjusting nuts 322 to move, thereby adjusting the distance between the two adjusting nuts 322, and driving the limiting roller 34 to move laterally through the extension and retraction of the telescopic end of the pneumatic push rod 33, thereby adjusting the distance between the two limiting rollers 34 and the upper roller 22, the middle roller 24 and the lower roller 23, thereby contacting the outer wall of the rubber to prevent the rubber from slipping out.

[0048] A rotating shaft 35 is rotatably mounted on both fixing frames 331 , a baffle 352 is fixedly mounted on the rotating shaft 35 , a gear 1 351 is fixedly mounted on the end of the rotating shaft 35 , and a stepper motor 36 is fixedly mounted on the fixing frames 331 , a gear 2 361 meshing with the gear 1 351 is mounted on the output end of the stepper motor 36 .

[0049] Specifically, the stepper motor 36 drives the rotating shaft 35 to rotate, drives the baffle 352 to swing, and adjusts the angle of the baffle 352 so that the baffle 352 blocks the broken rubber, thereby improving the processing efficiency of the rubber.

[0050] The discharging assembly 4 includes a discharging rack 41, which is fixedly mounted on the base 1. A sliding groove 411 is provided on the discharging rack 41. A sliding block 421 is slidably connected in the sliding groove 411. A discharging plate 42 is mounted on the sliding block 421. An electric push rod 422 is mounted on the discharging rack 41. The telescopic end of the electric push rod 422 is fixedly connected to the sliding block 421.

[0051] It should be noted that the electric push rod 422 drives the sliding block 421 and the discharge plate 42 to move longitudinally, so that the discharge plate 42 and the lower roller 23 remain horizontal, which facilitates the rubber rolled on the lower roller 23 to slide onto the discharge plate 42. At the same time, the side wall of the discharge plate 42 is provided with an inclined surface to facilitate approaching the lower roller 23.

[0052] The working principle and use process of this utility model: please refer to Figure 1-3 The rubber slides into the gap between the upper roller 22 and the middle roller 24, and the reduction motor 1 222 drives the upper roller 22 to rotate, the reduction motor 232 drives the lower roller 23 to rotate, and the reduction motor 3 241 drives the middle roller 24 to rotate, and the upper roller 22 and the middle roller 24 are used to calender it, and it fits the outer wall of the middle roller 24, and follows the rotation of the middle roller 24. The driving motor 321 drives the bidirectional threaded rod 32 to rotate, and then drives the two adjusting screw nuts 322 to move, adjust the distance between the two adjusting screw nuts 322, and drive the limiting roller 34 to move horizontally through the telescopic end of the pneumatic push rod 33, and adjust the distance between the two limiting rollers 34 and the upper roller 22, the middle roller 24 and the lower roller 23, and then contact the outer wall of the rubber to prevent the rubber from slipping out. The electric push rod 422 drives the sliding block 421 and the discharge plate 42 to move longitudinally, so that the discharge plate 42 and the lower roller 23 remain horizontal, so that the rubber after calendering on the lower roller 23 slides into the discharge plate 42.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-roll calender for rubber processing, characterized in that: It comprises a base (1), on which a calendering assembly (2) is fixedly mounted; The calendering assembly (2) comprises a U-shaped mounting frame (21), and the mounting frame (21) is fixedly mounted on the base (1); An upper roller (22), an intermediate roller (24) and a lower roller (23) are rotatably mounted on the mounting frame (21), and the upper roller (22), the intermediate roller (24) and the lower roller (23) are longitudinally arranged on the mounting frame (21); A limit assembly (3), comprising a support frame (31), wherein the support frame (31) is fixedly mounted on the base (1), and the support frame (31) is arranged on one side of the mounting frame (21); Two adjusting nuts (322) are slidably connected in the support frame (31), and pneumatic push rods (33) are installed on the two adjusting nuts (322). A fixed frame (331) is installed at the telescopic end of the pneumatic push rod (33), and a limiting roller (34) is rotatably installed on the two fixed frames (331); A discharge assembly (4) is used to discharge rubber, and the discharge assembly (4) is installed on the base (1).

2. A three-roll calender for rubber processing as claimed in claim 1, characterized in that: A bidirectional threaded rod (32) is rotatably mounted on the support frame (31), and the bidirectional threaded rod (32) is threadedly connected to the two adjusting nuts (322); A driving motor (321) is fixedly mounted on the support frame (31), and the driving motor (321) is drivingly connected to the bidirectional threaded rod (32).

3. A three-roll calender for rubber processing as claimed in claim 1, characterized in that: A rotating shaft (35) is rotatably mounted on each of the two fixing frames (331), and a baffle (352) is fixedly mounted on the rotating shaft (35); A gear 1 (351) is fixedly mounted on the end of the rotating shaft (35), and a stepper motor (36) is fixedly mounted on the fixing frame (331), and a gear 2 (361) meshing with the gear 1 (351) is mounted on the output end of the stepper motor (36).

4. A three-roll calender for rubber processing as claimed in claim 1, characterized in that: A first slide groove (211) and a second slide groove (212) are provided on the inner walls of both sides of the mounting frame (21); A slider block (221) is slidably connected in each of the two slide grooves (211), both ends of the upper roller (22) are rotatably connected to the slider block (221), and a reduction motor (222) is installed on the slider block (221) for transmission connection with the upper roller (22); The two slide grooves (212) are both slidably connected with sliders (231), both ends of the lower roller (23) are rotatably connected with the sliders (231), and the sliders (231) are equipped with reduction motors (232) for transmission connection with the lower roller (23).

5. A three-roll calender for rubber processing as claimed in claim 4, characterized in that: Two hydraulic push rods (223) are fixedly mounted on the upper surface of the mounting frame (21), and the telescopic ends of the two hydraulic push rods (223) are fixedly connected to the corresponding sliding blocks (221); Two hydraulic push rods 2 (233) are fixedly installed in the base (1), and the telescopic ends of the two hydraulic push rods 2 (233) are fixedly connected to the corresponding sliding block 2 (231).

6. A three-roll calender for rubber processing as claimed in claim 1, characterized in that: A third reduction motor (241) is fixedly mounted on the mounting frame (21), and the third reduction motor (241) is transmission-connected to the intermediate roller (24).

7. A three-roll calender for rubber processing as claimed in claim 1, characterized in that: The discharging assembly (4) comprises a discharging frame (41), and the discharging frame (41) is fixedly mounted on the base (1); The discharging frame (41) is provided with a sliding groove (411), a sliding block (421) is slidably connected in the sliding groove (411), a discharging plate (42) is installed on the sliding block (421), and an electric push rod (422) is installed on the discharging frame (41), and the telescopic end of the electric push rod (422) is fixedly connected to the sliding block (421).

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