An internal mixer for rubber bearing production

Abstract

The present invention relates to the technical field of rubber processing equipment, and provides a rubber open mill for rubber bearing production, which includes a frame body; a rubber mixing roll is rotatably arranged in the frame body, and the paired rubber mixing rolls are used for extruding materials; the feeding device includes: a first tool rest is slidably arranged relative to the rubber mixing roll and is located above the rubber mixing roll; a cross-cutting knife is swingably arranged on the first tool rest. After the cross-cutting knife swings, it abuts or disengages from the material attached to the rubber mixing roll. After the first tool rest slides, it moves from one side of the rubber mixing roll to the other side for horizontally cutting the material; a scraper is swingably arranged relative to the rubber mixing roll and is located above one side of the rubber mixing roll. After the scraper swings, it abuts against the material for peeling the material from the rubber mixing roll. Through the above technical solution, the problem of high danger in feeding of the rubber open mill in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber processing equipment, and in particular to a rubber mixing mill for producing rubber bearings. Background Art

[0002] In the production process of rubber bearings, the rubber mixing mill plays a vital role. It is mainly responsible for the initial processing of rubber raw materials such as plasticizing and mixing, and provides qualified rubber materials for subsequent molding processes. However, the traditional rubber mixing mill has many disadvantages in the feeding process.

[0003] In the past, most rubber mixing mills used manual unloading. Operators needed to hold tools such as knives and get close to the high-speed rotating mixing rollers to cut and peel the materials. On the one hand, the mixing rollers usually run continuously at a high speed, and their strong rotational kinetic energy creates a potential danger zone for the surrounding area. If the operator is not careful, his limbs can easily be caught between the rollers, causing serious personal injury accidents, such as fractures, limb lacerations, etc., which pose a huge threat to the life and health of the operator.

[0004] On the other hand, manual unloading is limited by the operator's physical strength, energy and proficiency. Long-term repetitive work can easily make the operator tired, which in turn leads to more operating errors. When cutting the material, it is difficult to ensure that the cutting position is accurate and consistent each time, and the material cuts are often uneven, which not only causes waste of rubber materials and increases production costs, but also affects the quality stability of subsequent rubber bearing production. Summary of the invention

[0005] The invention provides a rubber mixing mill for producing rubber bearings, which solves the problem of high risk of material unloading in the rubber mixing mill in the related art.

[0006] The technical solution of the present invention is as follows:

[0007] A rubber mixing mill for producing rubber bearings, comprising:

[0008] Frame;

[0009] A rubber mixing roller, which is rotatably arranged in the frame and is used in pairs to extrude materials;

[0010] A material unloading device, the material unloading device comprising:

[0011] A first knife holder, which is slidably arranged relative to the rubber mixing roller and is located above the rubber mixing roller;

[0012] A cross-cutting knife, which is swingably arranged on the first tool rest. After the cross-cutting knife swings, it abuts against or disengages from the material attached to the rubber mixing roll. After the first tool rest slides, it moves from one side of the rubber mixing roll to the other side for laterally cutting the material;

[0013] A scraper, which is swingably arranged relative to the rubber mixing roll and is located above one side of the rubber mixing roll. After the scraper swings, it abuts against the material for peeling the material from the rubber mixing roll.

[0014] Optionally, it further includes:

[0015] A mounting plate, which is swingably arranged on the side wall of the frame body near one end of the cross-cutting knife;

[0016] A material receiving roll, which is rotatably arranged on the mounting plate,

[0017] After the material receiving roll rotates, it is used for winding the peeled material;

[0018] A material taking table, which is slidably arranged relative to the material receiving roll;

[0019] After the mounting plate rotates, the material receiving roll is brought close to the material taking table, and the material taking table is used for supporting the material wound on the material receiving roll.

[0020] Optionally, it further includes:

[0021] A lead screw, which is rotatably arranged in the frame body;

[0022] A guide rod, which is arranged in the frame body;

[0023] The first tool rest is threadedly connected to the lead screw and is slidably arranged on the guide rod.

[0024] Optionally, there are two sets of the blanking devices. The lead screw has a first thread and a second thread, and the first thread and the second thread have opposite helix directions. The two first tool rests are respectively threadedly connected to the first thread and the second thread. After the lead screw rotates, the two first tool rests approach or move away from each other. It further includes:

[0025] A mounting frame, which is located between the two first tool rests. One end of the mounting frame has a through hole, the other end of the mounting frame is arranged on the guide rod, and the lead screw rotates in the through hole;

[0026] A second tool rest, one end of which is swingably arranged on the mounting frame, and the scraper is arranged on the second tool rest;

[0027] A longitudinal cutter, which is arranged at the other end of the second tool rest. After the second tool rest swings, the longitudinal cutter is used to longitudinally cut the material attached to the rubber mixing roll.

[0028] Optionally, torsion springs are provided at the joints of the first tool rest and the cross cutter, and the mounting bracket and the second tool rest, and further include:

[0029] A convex shaft, which is rotatably arranged in the frame body, between the first tool rest and the cross cutter and between the mounting bracket and the second tool rest. The convex shaft has a convex part. After the convex shaft rotates, the convex part synchronously abuts against the side of the cross cutter close to the first tool rest and the side of the second tool rest close to the mounting bracket, driving the cross cutter and the second tool rest to swing synchronously.

[0030] Optionally, the winding roller includes:

[0031] A rotating roller, which is rotatably arranged on the mounting plate and has a plurality of through grooves thereon;

[0032] An expansion plate, which is located in the through groove and is slidably arranged relative to the rotating roller;

[0033] After the expansion plate slides away from the rotating roller, the peeled material is wound on a plurality of the expansion plates, and an expansion space is formed between the material and the rotating roller;

[0034] After the expansion plate contracts, the expansion plate is disengaged from abutting against the material.

[0035] Optionally, the rotating roller has a cavity inside, the through groove is communicated with the cavity, and the winding roller further includes:

[0036] A sliding rod, which is slidably arranged in the cavity;

[0037] A first scissor rod, one end of which is hinged to the rotating roller and the other end extends out of the through groove;

[0038] A second scissor rod, one end of which is hinged to the sliding rod and the other end extends out of the through groove;

[0039] The expansion plate has a chute, the other end of the first scissor rod is slidably arranged in the chute, the other end of the second scissor rod is hinged to the expansion plate, and after the sliding rod slides in the cavity, a plurality of the expansion plates approach or move away from the rotating roller synchronously.

[0040] Optionally, further include:

[0041] An elastic film, the elastic film is sleeved outside a plurality of the expansion plates, and the expansion plates are in contact with the material through the elastic film.

[0042] Optionally, it further includes:

[0043] A guide plate, the guide plate is slidably arranged on the frame body and is located below the take-up roller. After the guide plate approaches the take-up roller, a guiding space is formed between the guide plate and the take-up roller, and the guiding space is used to guide the peeled material to be wound around the take-up roller.

[0044] Optionally, the scraping plate has a guiding inclined surface, and the guiding inclined surface is used to contact the material and then guide the material to contact the take-up roller.

[0045] The working principle and beneficial effects of the present invention are as follows:

[0046] In the present invention, in order to solve the problem of relatively high danger in the feeding of rubber open mills in the related art, a rubber open mill for rubber bearing production is designed. The frame body is welded by strong channel steel. Inside the frame body, a pair of rubber mixing rollers rotate to ensure extremely high parallelism between the two rollers, and can provide a uniform and stable processing environment for the material. The first tool holder of the feeding device slides relative to the rubber mixing rollers. The cross-cutting knife is installed at the front end of the first tool holder and swings around the pin shaft. The blade part is made of special hard alloy and can easily cut various rubber materials. When the material completes the predetermined processing process on the rubber mixing rollers, such as after sufficient plasticizing and mixing stages, the feeding program is started through the control system, and the driving device pushes the first tool holder to slowly and smoothly move from one side of the rubber mixing rollers to the other side. During this process, the cross-cutting knife swings in a timely manner and precisely contacts the material attached to the rubber mixing rollers, and instantly cuts the material horizontally with the sharp blade.

[0047] The scraping plate is located above one side of the rubber mixing rollers and can swing relative to the rubber mixing rollers. The scraping plate is made of polytetrafluoroethylene material, which has an extremely low friction coefficient, and rubber materials are not easily adhered to it, ensuring the high efficiency of the material peeling process. When the material is cut by the cross-cutting knife, the scraping plate quickly swings and closely adheres to the surface of the material, and uses its own mechanical structure and material characteristics to smoothly peel the material from the rubber mixing rollers, preparing for the subsequent material receiving link.

[0048] The advantages are that through the feeding device, automatic cutting and peeling of the material are realized, changing the low efficiency and high risk of traditional manual operations. The operator does not need to approach the high-speed rotating rubber mixing rollers for dangerous feeding operations, greatly ensuring personal safety. At the same time, the automated operation makes the feeding process more accurate and stable, effectively avoiding problems such as material waste and uneven cut surfaces that may be caused by manual operations, and improving production efficiency. Description of the Drawings

[0049] The following will further illustrate the above-mentioned features, technical features, advantages and implementation manners of the present invention in a clear and understandable manner in combination with the accompanying drawings.

[0050] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 is a schematic diagram of the overall structure of the present invention from another angle;

[0052] Figure 3 of the present invention Figure 2 is an enlarged view of part A;

[0053] Figure 4 is a schematic diagram of the sectional structure of the present invention;

[0054] Figure 5 of the present invention Figure 4 is an enlarged view of part B;

[0055] Figure 6 is a schematic diagram of the sectional structure of the material receiving roller of the present invention;

[0056] Figure 7 of the present invention Figure 6 is an enlarged view of part C;

[0057] Figure 8 of the present invention Figure 1 is an enlarged view of part D.

[0058] In the figure: 1. Frame body, 2. Rubber mixing roller, 3. Feeding device, 31. First tool rest, 32. Cross cutting knife, 33. Scraper, 34. Mounting plate, 35. Material receiving roller, 36. Material taking table, 4. Lead screw, 5. Guide rod, 41. First thread, 42. Second thread, 6. Mounting frame, 61. Through hole, 7. Second tool rest, 8. Longitudinal cutting knife, 9. Convex shaft, 91. Convex part, 351. Rotating roller, 3511. Through groove, 352. Expansion plate, 3512. Cavity, 353. Sliding rod, 354. First scissors rod, 355. Second scissors rod, 3521. Chute, 10. Elastic film, 11. Guide plate, 331. Guide inclined plane, 3513. Gear ring, 3531. Ring groove, 12. Rotating driving part, 13. Sliding driving part, 14. Oscillating driving part. Specific embodiments

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings and other embodiments can be obtained.

[0060] For the sake of simplicity of the drawings, only the parts related to the invention are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, for components with the same structure or function in some drawings, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0061] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0062] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0063] Referring to Figures 1 to 8 , as the first embodiment of the present invention, a rubber open mill for rubber bearing production is proposed, which includes a frame 1; a rubber mixing roll 2 is rotatably arranged in the frame 1, and the paired rubber mixing rolls 2 are used for extruding materials; the feeding device 3 includes: a first tool rest 31 is slidably arranged relative to the rubber mixing roll 2 and is located above the rubber mixing roll 2; a cross-cutting knife 32 is swingably arranged on the first tool rest 31. After the cross-cutting knife 32 swings, it abuts or disengages from the material attached to the rubber mixing roll 2. After the first tool rest 31 slides, it moves from one side of the rubber mixing roll 2 to the other side for laterally cutting the material; a scraper 33 is swingably arranged relative to the rubber mixing roll 2 and is located above one side of the rubber mixing roll 2. After the scraper 33 swings, it abuts against the material for peeling the material from the rubber mixing roll 2.

[0064] In this embodiment, in order to solve the problem of high danger in feeding of rubber open mills in the related art, a rubber open mill for rubber bearing production is designed. The frame 1 is welded by strong channel steel. Inside the frame 1, a pair of rubber mixing rollers 2 rotate to ensure extremely high parallelism between the two rollers, providing a uniform and stable processing environment for the materials. The first tool holder 31 of the feeding device 3 slides relative to the rubber mixing rollers 2. The cross-cutting knife 32 is installed at the front end of the first tool holder 31 and swings around the pin shaft. The cutting edge part is made of special hard alloy and can easily cut off various rubber materials. When the materials complete the predetermined processing process on the rubber mixing rollers 2, such as after sufficient plasticizing and mixing stages, the feeding program is started through the control system. The driving device pushes the first tool holder 31 to slowly and smoothly move from one side of the rubber mixing rollers 2 to the other side. During this process, the cross-cutting knife 32 swings in a timely manner and precisely contacts the materials attached to the rubber mixing rollers 2, and instantly cuts off the materials horizontally with the sharp cutting edge.

[0065] The scraping plate 33 is located above one side of the rubber mixing rollers 2 and can swing relative to the rubber mixing rollers 2. The scraping plate 33 is made of polytetrafluoroethylene material, which has an extremely low coefficient of friction, and rubber materials are not easily adhered to it, ensuring the high efficiency of the material stripping process. When the materials are cut off by the cross-cutting knife 32, the scraping plate 33 quickly swings and closely adheres to the surface of the materials, and uses its own mechanical structure and material characteristics to smoothly strip the materials from the rubber mixing rollers 2, preparing for the subsequent material collection link.

[0066] The advantage is that through the feeding device 3, automatic cutting and stripping of the materials are realized, changing the low efficiency and high risk of traditional manual operation. The operator does not need to approach the high-speed rotating rubber mixing rollers 2 for dangerous feeding operations, greatly ensuring personal safety. At the same time, the automated operation makes the feeding process more accurate and stable, effectively avoiding problems such as material waste and uneven cut surfaces that may be caused by manual operation, and improving production efficiency.

[0067] Furthermore, it also includes a mounting plate 34, which is swingably arranged on the side wall of the frame 1 near the cross-cutting knife 32; a take-up roller 35 is rotatably arranged on the mounting plate 34, and the take-up roller 35 rotates to wind up the stripped materials; a material taking table 36 is slidably arranged relative to the take-up roller 35; after the mounting plate 34 rotates, the take-up roller 35 approaches the material taking table 36, and the material taking table 36 is used to support the materials wound up on the take-up roller 35.

[0068] In this embodiment, the mounting plate 34 is mounted on the side wall of the frame body 1 near one end of the cross-cutting knife 32 through a hinge. The material receiving roller 35 is rotatably arranged on the mounting plate 34 through a high-precision bearing. The surface of the material receiving roller 35 is subjected to a special texture treatment, which increases the friction force with the material and ensures that the peeled material can be tightly wound thereon. The material taking table 36 is arranged to slide relative to the material receiving roller 35 through a slide rail structure. When the scraper 33 peels the material from the rubber mixing roller 2, the material moves towards the material receiving roller 35 under the action of its own gravity and the guiding action of the scraper 33. After the material receiving is completed, the mounting plate 34 rotates under the drive of the electric push rod, so that the material receiving roller 35 approaches the material taking table 36. The material taking table 36 slides along the slide rail and approaches the material receiving roller 35, and the operator can easily remove the material wound on the material receiving roller 35. The whole process is convenient and efficient. The advantage is that this design optimizes the material receiving process and further improves the degree of production automation.

[0069] Further, a lead screw 4 is further included. The lead screw 4 is rotatably arranged in the frame body 1; a guide rod 5 is arranged in the frame body 1; one end of the first tool holder 31 is threadedly connected to the lead screw 4, and the other end is slidably arranged on the guide rod 5.

[0070] In this embodiment, both ends of the lead screw 4 are fixed in the frame body 1 through bearing seats to ensure that there is no shaking or displacement during high-speed rotation. The lead screw 4 is arranged parallel to the frame body 1, and the guide rod 5 is parallel to the lead screw 4 to provide guidance for the first tool holder 31. The threaded hole at one end of the first tool holder 31 is in precise fit with the lead screw 4, and the other end is sleeved on the guide rod 5, forming a stable and reliable sliding connection structure.

[0071] When it is necessary to drive the first tool holder 31 to move, the lead screw 4 is rotated by a servo motor. According to the forward and reverse rotation and speed control of the motor, the first tool holder 31 can move quickly and accurately from one end of the rubber mixing roller 2 to the other end along a predetermined track at a stable speed under the cooperation of the lead screw 4 and the guide rod 5, ensuring that the cross-cutting knife 32 can cut the material at the best position each time, greatly improving the cutting accuracy and efficiency of the blanking.

[0072] The advantage is that, compared with a simple linear drive mode, the combination of the lead screw 4 and the guide rod 5 provides a stable movement track for the first tool holder 31. This makes the cutting position of the cross-cutting knife 32 more accurate. At the same time, the stable structure reduces the failure rate of the equipment, reduces the equipment maintenance cost, and prolongs the service life of the equipment.

[0073] Furthermore, there are two sets of blanking devices 3. The lead screw 4 has a first thread 41 and a second thread 42 with opposite helix directions. The two first tool holders 31 are respectively threadedly connected to the first thread 41 and the second thread 42. After the lead screw 4 rotates, the two first tool holders 31 move closer to or away from each other. There is also an installation frame 6 located between the two first tool holders 31. One end of the installation frame 6 has a through hole 61, and the other end of the installation frame 6 is arranged on the guide rod 5. The lead screw 4 rotates within the through hole 61. One end of the second tool holder 7 is swingably arranged on the installation frame 6, and a scraping plate 33 is arranged on the second tool holder 7. A longitudinal cutting knife 8 is arranged at the other end of the second tool holder 7. After the second tool holder 7 swings, the longitudinal cutting knife 8 is used to longitudinally cut the material attached to the rubber mixing roll 2.

[0074] In this embodiment, the blanking device 3 is equipped with two sets of blanking units symmetrically distributed on both sides of the rubber mixing roll 2. The lead screw 4 is specially processed and has a first thread 41 and a second thread 42 with opposite helix directions. The two first tool holders 31 are respectively tightly engaged with the corresponding threads. The installation frame 6 is located between the two first tool holders 31. The through hole 61 at one end of the installation frame 6 is sleeved outside the lead screw 4 to ensure that the rotation of the lead screw 4 will not affect the installation frame 6. The other end of the installation frame 6 is firmly arranged on the guide rod 5, making its overall structure stable.

[0075] One end of the second tool holder 7 is swingably arranged on the installation frame 6 through a pin shaft. The scraping plate 33 is fixed on the second tool holder 7. The longitudinal cutting knife 8 is vertically installed at the end of the short arm. The longitudinal cutting knife 8 is made of cemented carbide of the same quality as the transverse cutting knife 32, which is sharp and durable. When the lead screw 4 rotates, according to the helix direction of the thread, the two first tool holders 31 move closer to or away from each other. The longitudinal cutting knife 8 drops, dividing the material attached to the rubber mixing roll 2 into left and right parts. At the same time, the transverse cutting knife drops to cut the material transversely, reducing the volume of the material and dividing it into left and right parts.

[0076] The advantage is that the two sets of blanking devices 3 work together, greatly improving the blanking efficiency and meeting the rapid blanking requirements for large-scale production of rubber bearings. The addition of the longitudinal cutting knife 8 enables the left and right regional processing of the material, making the material more regular and orderly during winding, ensuring the smooth progress of the subsequent rubber bearing forming process, and thus significantly improving the overall production efficiency.

[0077] Furthermore, torsion springs are provided at the connections between the first tool holder 31 and the transverse cutting knife 32, and between the installation frame 6 and the second tool holder 7. There is also a convex shaft 9 rotatably arranged in the frame body 1, located between the first tool holder 31 and the transverse cutting knife 32, and between the installation frame 6 and the second tool holder 7. The convex shaft 9 has a convex part 91. After the convex shaft 9 rotates, the convex part 91 synchronously abuts against the side of the transverse cutting knife 32 close to the first tool holder 31 and the side of the second tool holder 7 close to the installation frame 6, driving the transverse cutting knife 32 and the second tool holder 7 to swing synchronously.

[0078] In this embodiment, both ends of the convex shaft 9 are rotatably arranged in the frame 1 through bearings, and are located between the first tool rest 31 and the cross cutter 32, and between the mounting bracket 6 and the second tool rest 7. This ensures that the convex part 91 of the convex shaft 9 can smoothly transmit power. Torsion springs with appropriate torques are installed at the joints between the first tool rest 31 and the cross cutter 32, and between the mounting bracket 6 and the second tool rest 7. The torsion springs provide initial pre-tightening forces for these components, keeping them in specific positions under normal conditions.

[0079] When the blanking operation needs to be carried out, the driving motor drives the convex shaft 9 to rotate. The convex part 91 of the convex shaft 9 simultaneously abuts against the side of the cross cutter 32 close to the first tool rest 31 and the side of the second tool rest 7 close to the mounting bracket 6, overcoming the elastic force of the torsion spring, and driving the cross cutter 32 and the second tool rest 7 to swing synchronously, achieving a high degree of coordination and unity of the rapid cutting and peeling actions of the material.

[0080] The advantage is that through the ingenious cooperation of the convex shaft 9 and the torsion spring, the synchronous control of the cross cutter 32 and the second tool rest 7 can be achieved with only one driving action, greatly simplifying the operation process and improving the automation degree of the equipment. The synchronous operation ensures the precise matching of the timing of material cutting and peeling, effectively avoiding problems such as material tearing and residue caused by uncoordinated actions, improving the quality of blanking, and further enhancing the stability and reliability of rubber bearing production.

[0081] Further, the material receiving roller 35 includes a rotating roller 351. The rotating roller 351 is rotatably arranged on the mounting plate 34, and a number of through slots 3511 are provided on the rotating roller 351; the expanding plates 352 are located in the through slots 3511 and are slidably arranged relative to the rotating roller 351; after the expanding plates 352 slide away from the rotating roller 351, the peeled material is wound around a number of expanding plates 352, and an expanding space is formed between the inner wall of the material and the rotating roller 351; after the expanding plates 352 contract, the expanding plates 352 are disengaged from abutting against the inner wall of the material.

[0082] In this embodiment, one end of the rotating roller 351 of the material receiving roller 35 is installed on the mounting plate 34 through a bearing. A number of through slots 3511 are evenly distributed on the rotating roller 351, and these through slots 3511 provide space for the movement of the expanding plates 352.

[0083] After the material is peeled off by the scraper 33, the material approaches the material receiving roller 35 under its own gravity and guiding action. The expanding plates 352 slide outwards along the through slots 3511, and the material is wound around a number of expanding plates 352, and an expanding space is formed between the inner wall of the material and the rotating roller 351. When the material needs to be removed, the expanding plates 352 are contracted and enter the through slots 3511, so that the expanding plates 352 are disengaged from abutting against the inner wall of the material. Supported by the material taking table 36, the material can slide away from the material receiving roller 35 without abutting against the material receiving roller, so that no frictional force is generated, and the shape of the wound material will not be damaged during blanking.

[0084] Further, the rotating roller 351 has a cavity 3512 inside, the through groove 3511 communicates with the cavity 3512, the material collecting roller 35 further includes a sliding rod 353, and the sliding rod 353 is slidably arranged in the cavity 3512; one end of the first scissor rod 354 is hinged to the rotating roller 351, and the other end extends out of the through groove 3511; one end of the second scissor rod 355 is hinged to the sliding rod 353, and the other end extends out of the through groove 3511; the expanding plate 352 has a chute 3521, the other end of the first scissor rod 354 is slidably arranged in the chute 3521, the other end of the second scissor rod 355 is hinged to the expanding plate 352, and after the sliding rod 353 slides in the cavity 3512, a plurality of expanding plates 352 approach or move away from the rotating roller 351 synchronously.

[0085] In this embodiment, when it is necessary to adjust the position of the expanding plate 352, the sliding rod 353 is driven to slide in the cavity 3512 by the pushing driving member, and through the mechanical linkage of the scissor rod structure, a plurality of expanding plates 352 approach or move away from the rotating roller 351 synchronously, accurately controlling the size of the winding space.

[0086] The advantage is that the ingenious application of the scissor rod structure realizes the precise synchronous control of the expanding plate 352. Compared with a simple elastic expansion structure, this design can adjust the winding space more accurately.

[0087] Further, it further includes an elastic film 10, and the elastic film 10 is sleeved outside a plurality of expanding plates 352, and the expanding plates 352 are in contact with the material through the elastic film 10.

[0088] In this embodiment, the elastic film 10 is made of a highly elastic and wear-resistant rubber material and is sleeved outside a plurality of expanding plates 352. During the material winding process, the elastic film 10 closely adheres to the material, and fills the gaps between the expanding plates 352 by virtue of its own elasticity, effectively preventing problems such as local looseness of the material during winding and the material entering the gaps between the expanding plates 352.

[0089] The advantage is that the addition of the elastic film 10 further optimizes the material collecting effect, enhances the adhesion between the material and the expanding plates 352, provides higher-quality raw materials for the subsequent forming and processing of the rubber bearing, reduces the probability of product defects, improves the product qualification rate, and ensures the quality of the rubber bearing.

[0090] Further, it further includes a guiding plate 11, and the guiding plate 11 is slidably arranged on the frame 1 and is located below the material collecting roller 35. After the guiding plate 11 approaches the material collecting roller 35, a guiding space is formed between the guiding plate 11 and the material collecting roller 35, and the guiding space is used to guide the peeled material to wind around the material collecting roller 35.

[0091] In this embodiment, the guide plate 11 is made of a stainless steel thin plate. After the material is peeled off, the external driving device drives the guide plate 11 to quickly approach the winding roller 35, and a guiding space is formed between the guide plate 11 and the winding roller 35. By using the inclination angle and smooth surface of the guide plate 11, the peeled material is accurately wound around the winding roller 35, avoiding the risk of winding chaos caused by the irregular movement of the material during the initial winding.

[0092] The advantage is that the guide plate 11 provides a clear path guidance for the material winding, reducing the risk of winding chaos caused by the disorderly movement of the material in the initial winding stage, improving the winding neatness. It reduces the time and labor intensity of manual material sorting, improves production efficiency, ensures the orderly progress of the rubber bearing production, and makes the whole production process smoother. Further, the scraping plate 33 has a guiding inclined surface 331, and the guiding inclined surface 331 is used to abut against the material and then guide the material to abut against the winding roller 35.

[0093] In this embodiment, the guiding inclined surface 331 of the scraping plate 33 is located at the front end of the scraping plate 33, and after being finely polished, the surface is smooth and has a suitable inclination angle, generally between 30° and 45°. When the scraping plate 33 swings to peel the material from the rubber mixing roller 2, the material slides down along the guiding inclined surface 331. Due to the guiding effect of the inclined surface, the material can smoothly abut against the winding roller 35, realizing a smooth transition of the material from peeling to winding.

[0094] The rotation driving member 12 is selected as an efficient servo motor, and the output shaft of the motor is engaged with the gear ring 3513 through which one end of the rotating roller 351 penetrates the mounting plate 34, which can stably output strong torque and drive the rotating roller 351 to rotate at a constant speed, ensuring the smooth and orderly process of material winding, and there will be no jamming or sudden acceleration or deceleration.

[0095] The sliding driving member 13 adopts a high-precision electric cylinder, and the special sleeve ring at the head of the cylinder piston rod is accurately sleeved outside the annular groove 3531. By controlling the telescopic movement of the electric cylinder, the displacement of the sliding rod 353 is accurately controlled to meet the adjustment requirements of the expansion plate 352.

[0096] The swing driving member 14 is an electric push rod, one end of which is hinged on the frame body 1 and the other end is tightly connected to the mounting plate 34, smoothly pushing the mounting plate 34 to swing as required, flexibly adjusting the position of the winding roller 35, and facilitating the winding and taking of the material.

[0097] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A rubber mixing mill for producing rubber bearings, characterized in that: include: Frame (1); A rubber mixing roller (2), the rubber mixing roller (2) being rotatably arranged in the frame (1), and the rubber mixing roller (2) being used in pairs for extruding materials; A material unloading device (3), wherein the material unloading device (3) comprises: a first knife holder (31), the first knife holder (31) being slidably arranged relative to the rubber mixing roller (2) and being located above the rubber mixing roller (2); a cross-cutting knife (32), the cross-cutting knife (32) being swingably disposed on the first knife holder (31); after the cross-cutting knife (32) swings, it abuts against or releases the abutment with the material attached to the rubber mixing roller (2); after the first knife holder (31) slides, it moves from one side of the rubber mixing roller (2) to the other side, so as to cut the material transversely; a scraper (33), the scraper (33) being swingably arranged relative to the rubber mixing roller (2) and being located above one side of the rubber mixing roller (2); the scraper (33) being in contact with the material after swinging, and being used to peel the material off the rubber mixing roller (2); A mounting plate (34), the mounting plate (34) being swingably disposed on a side wall of the frame (1) close to one end of the cross-cutting knife (32); a receiving roller (35), the receiving roller (35) being rotatably mounted on the mounting plate (34), and the receiving roller (35) being used to reel in the peeled material after rotation; The receiving roller (35) comprises: A rotating roller (351), the rotating roller (351) being rotatably disposed on the mounting plate (34), and the rotating roller (351) having a plurality of through grooves (3511); an expansion plate (352), the expansion plate (352) being located in the through groove (3511) and being slidably disposed relative to the rotating roller (351); After the expansion plates (352) slide away from the rotating rollers (351), the peeled material is rolled up on a plurality of the expansion plates (352), and an expansion space is formed between the material and the rotating rollers (351); After the expansion plate (352) contracts, the expansion plate (352) is no longer in contact with the material; Also includes: A guide plate (11), wherein the guide plate (11) is slidably disposed on the frame (1) and is located below the receiving roller (35); after the guide plate (11) approaches the receiving roller (35), a guide space is formed between the guide plate (11) and the receiving roller (35); the guide space is used to guide the stripped material to be wound around the receiving roller (35).

2. A rubber mixing mill for producing rubber bearings according to claim 1, characterized in that: Also includes: A material taking platform (36), wherein the material taking platform (36) is slidably arranged relative to the material receiving roller (35), and after the mounting plate (34) rotates, the material receiving roller (35) is brought close to the material taking platform (36), and the material taking platform (36) is used to support the material rolled up on the material receiving roller (35).

3. The rubber mixing mill for producing rubber bearings according to claim 1, characterized in that: Also includes: A screw rod (4), the screw rod (4) being rotatably disposed in the frame (1); A guide rod (5), wherein the guide rod (5) is arranged inside the frame (1); The first tool holder (31) is threadedly connected to the screw rod (4) and is slidably arranged on the guide rod (5).

4. A rubber mixing mill for producing rubber bearings according to claim 3, characterized in that: The material discharge device (3) comprises two sets, the screw rod (4) comprises a first thread (41) and a second thread (42), the first thread (41) and the second thread (42) have opposite rotation directions, the two first tool holders (31) are respectively threadedly connected to the first thread (41) and the second thread (42), and after the screw rod (4) rotates, the two first tool holders (31) move closer to or farther from each other, and further comprises: a mounting frame (6), the mounting frame (6) being located between the two first tool holders (31), one end of the mounting frame (6) having a through hole (61), the other end of the mounting frame (6) being arranged on the guide rod (5), and the screw rod (4) rotating in the through hole (61); a second tool holder (7), one end of the second tool holder (7) being swingably disposed on the mounting frame (6), and the scraper (33) being disposed on the second tool holder (7); A longitudinal cutter (8), the longitudinal cutter (8) being arranged at the other end of the second cutter holder (7), and after the second cutter holder (7) swings, the longitudinal cutter (8) is used to longitudinally cut the material attached to the rubber mixing roller (2).

5. The rubber mixing mill for producing rubber bearings according to claim 4, characterized in that: The connection points between the first knife holder (31) and the cross-cutting knife (32), and between the mounting frame (6) and the second knife holder (7) are all provided with torsion springs, and further include: A convex shaft (9), the convex shaft (9) being rotatably arranged in the frame body (1), and being located between the first knife holder (31) and the crosscutting knife (32) and between the mounting frame (6) and the second knife holder (7), the convex shaft (9) having a convex portion (91), and after the convex shaft (9) rotates, the convex portion (91) synchronously abuts against a side of the crosscutting knife (32) close to the first knife holder (31) and a side of the second knife holder (7) close to the mounting frame (6), thereby driving the crosscutting knife (32) and the second knife holder (7) to swing synchronously.

6. The rubber mixing mill for producing rubber bearings according to claim 1, characterized in that: The rotating roller (351) has a cavity (3512) inside, the through groove (3511) is in communication with the cavity (3512), and the receiving roller (35) further comprises: a sliding rod (353), the sliding rod (353) being slidably disposed in the cavity (3512); A first scissor rod (354), wherein one end of the first scissor rod (354) is hingedly arranged on the rotating roller (351), and the other end extends out of the through slot (3511); A second scissor rod (355), one end of the second scissor rod (355) being hingedly arranged on the sliding rod (353) and the other end of the second scissor rod (355) extending out of the through slot (3511); The expansion plate (352) has a slide groove (3521), the other end of the first scissor rod (354) is slidably arranged in the slide groove (3521), and the other end of the second scissor rod (355) is hingedly arranged on the expansion plate (352), and after the sliding rod (353) slides in the cavity (3512), a plurality of the expansion plates (352) synchronously approach or move away from the rotating roller (351).

7. The rubber mixing mill for producing rubber bearings according to claim 1, characterized in that: Also includes: An elastic film (10), wherein the elastic film (10) is sleeved on the outside of the plurality of expansion plates (352), and the expansion plates (352) are in contact with the material through the elastic film (10).

8. The rubber mixing mill for producing rubber bearings according to claim 1, characterized in that: The scraper (33) has a guiding inclined surface (331), and the guiding inclined surface (331) is used to guide the material to abut against the receiving roller (35) after abutting against the material.

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