Open mill for producing reclaimed rubber mix

Abstract

This invention relates to the field of open mills, and more particularly to an open mill for reclaimed rubber compounding. The open mill includes a support frame; two mounting brackets are fixedly installed on the top of the support frame, and a front roller and a rear roller are rotatably connected to the inner sides of the two mounting brackets respectively; wherein a support seat is fixedly installed on the inner sides of each of the two mounting brackets, a support plate is installed on the inner sides of each of the two support seats, and a reciprocating moving assembly is installed between the two support plates. The open mill for reclaimed rubber compounding provided by this invention utilizes a bidirectional reverse reciprocating wire structure to drive two sets of feeding assemblies to move synchronously in opposite directions, enabling the rubber material scattered on both sides of the rollers to automatically converge and gather towards the center, continuously ensuring that the rubber material is concentrated in the core area of ​​the roller gap for compounding. This effectively solves the pain points of traditional open mills, such as material leakage, uneven rubber distribution at both ends, and uneven mixing, significantly improving the plasticization consistency and batch stability of reclaimed rubber.

Description

Technical Field

[0001] This invention relates to the field of open mills, and more particularly to an open mill for the production of recycled rubber compounding. Background Technology

[0002] In the production of recycled rubber, open-face mills are the core and commonly used equipment for plasticizing, mixing, and calendering. These mills feature an open working structure with fully exposed rollers. They primarily rely on the relative counter-rotation of the front and rear rollers to extrude, shear, and extend the recycled rubber material, thereby completing the plasticizing, mixing, and calendering processes. They are simple in structure, easy to maintain, and widely used in the recycled rubber production field. In conventional open-face mill mixing processes, the rubber compound, subjected to roller compression, centrifugal force, and the stretching effect of the roller gap, continuously slides and disperses towards both ends of the rollers. This results in less rubber in the center of the roller surface, with excess rubber on the sides, leading to uneven material distribution. This severely affects the shearing and mixing effect of the rubber compound. Therefore, conventional open-face mills in the industry require manual intervention to repeatedly gather and collect the rubber compound scattered on both sides of the rollers towards the center, ensuring concentrated mixing and achieving uniform plasticization. However, due to the limitations of the open structure, conventional equipment does not have an automatic centering and material feeding mechanism. It relies entirely on continuous manual intervention by operators to complete operations such as centering, stacking, and trimming of the rubber materials on both sides. This results in high labor intensity, poor production continuity, and low production efficiency.

[0003] Therefore, it is necessary to provide a new open mill for the production of recycled rubber compounding to solve the above-mentioned technical problems. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a two-roll mill for the production of recycled rubber is provided to solve the above-mentioned problems.

[0005] The open mill for producing recycled rubber compounding provided by this invention includes: a support frame; two mounting brackets are fixedly installed on the top of the support frame, and a front roller and a rear roller are rotatably connected to the inner sides of the two mounting brackets respectively; wherein, a support seat is fixedly installed on the inner sides of each of the two mounting brackets, a support plate is installed on the inner sides of each of the two support seats, and a reciprocating moving assembly is installed between the two support plates; the reciprocating moving assembly includes a transmission rod, which is rotatably connected between the two support plates, and reciprocating wire grooves are opened at both ends of the outer side of the transmission rod, and reciprocating wire blocks are sleeved at both ends of the outer side of the transmission rod. The internal parts of each reciprocating wire block are respectively threadedly connected to the reciprocating wire grooves at their corresponding ends; a material feeding assembly, a material cutting assembly, and a guide assembly are correspondingly provided on the periphery of the transmission rod. The material feeding assembly is used to feed the rubber material attached to the surface of the front roller, the material cutting assembly is used to cut the rubber material attached to the surface of the front roller, and the guide assembly is used to limit and guide the movement stroke of the two reciprocating wire blocks; an oscillating assembly is provided on the outer side of the mounting frame. The oscillating assembly is connected to the support plate and can switch the working state of the material feeding assembly and the material cutting assembly by driving the support plate to oscillate.

[0006] Preferably, the reciprocating motion assembly further includes a main synchronous pulley rotatably connected to one side of one of the support plates, and an auxiliary synchronous pulley is installed on the outer side of the transmission rod corresponding to one end of the main synchronous pulley. The outer sides of the main synchronous pulley and the auxiliary synchronous pulley are connected by a synchronous belt drive, and an electric motor for driving the main synchronous pulley to rotate is installed on one side of the support plate.

[0007] Preferably, the feeding assembly includes feeding rods respectively installed on the same side of the two reciprocating wire blocks, and feeding plates are connected to the ends of the two feeding rods away from the reciprocating wire blocks.

[0008] Preferably, one end of the feeding rod is provided with a curved part, and the feeding plate is an overall non-straight plate structure.

[0009] Preferably, the cutting assembly includes cutting rods respectively installed on the same side of the two reciprocating wire blocks, and a blade holder is installed at the relatively far end of the two cutting rods, and a cutting blade is rotatably connected to the inner side of the two blade holders.

[0010] Preferably, the cutting edge of the cutting blade has an outwardly convex arc-shaped structure, and the cutting blade has a non-sharpened, smooth blade body structure.

[0011] Preferably, the guide assembly includes guide rods respectively installed on the same side of the two reciprocating screw blocks, and guide sleeves are connected to the ends of the two guide rods away from the two reciprocating screw blocks. Guide slide rods are sleeved on the inner sides of the two guide sleeves, and the ends of the two guide slide rods that are relatively far apart are respectively connected to the support plate.

[0012] Preferably, the two guide slides are connected to a limiting rod at their relatively close ends, and the diameter of the limiting rod is larger than the diameter of the guide slide.

[0013] Preferably, the swing assembly includes a movable seat rotatably connected to one side of the top of one of the mounting brackets, an electric push rod mounted at the bottom of the movable seat, and the output end of the electric push rod connected to one of the support plates.

[0014] Preferably, the reciprocating grooves at both ends of the transmission rod rotate in opposite directions, so that when the transmission rod rotates, the two reciprocating wire blocks can make reciprocating linear motions in opposite directions or in opposite directions along the transmission rod.

[0015] Compared with related technologies, the open mill for reclaimed rubber compounding production provided by the present invention has the following beneficial effects:

[0016] This invention utilizes a bidirectional reciprocating yarn structure to drive two sets of feeding components to move synchronously in opposite directions, which can realize the automatic convergence and collection of rubber materials scattered on both sides of the roller towards the center, continuously ensuring that the rubber materials are concentrated in the core area of ​​the roller gap for mixing. This effectively solves the pain points of material leakage, uneven rubber distribution at both ends, and uneven mixing in traditional open mills, and significantly improves the plasticization consistency and batch stability of recycled rubber.

[0017] This invention, by setting up a reciprocating moving component, a feeding component, a cutting component, a guiding component, and a swinging component, can completely replace manual centering and feeding operations compared to traditional open mills, significantly reducing reliance on manual labor and labor intensity, and improving production continuity and efficiency.

[0018] This invention allows for flexible switching between the rubber feeding process and the shaping and cutting process via a swing component. The process switching is automated and has a fast response, adapting to the process requirements of different stages of mixing. Through the full-process guidance and limit limit structure of the guide component, the problems of offset, shaking, and overtravel during the reciprocating movement are effectively eliminated, ensuring high precision and high stability of the rubber feeding and cutting operations. Attached Figure Description

[0019] Figure 1 A schematic diagram of a preferred embodiment of the open mill for producing recycled rubber compounding provided by the present invention;

[0020] Figure 2 for Figure 1 The diagram shows the structure of the front roller;

[0021] Figure 3 for Figure 1 The diagram shows the structure of the reciprocating moving component.

[0022] Figure 4 for Figure 1 The diagram shows the structure of the feeding assembly;

[0023] Figure 5 for Figure 1 The diagram shows the structure of the cutting assembly.

[0024] The following are the labels in the diagram: 1. Support frame; 11. Mounting frame; 12. Front roller; 13. Rear roller; 2. Support seat; 21. Support plate; 22. Main synchronous pulley; 23. Secondary synchronous pulley; 3. Transmission rod; 31. Reciprocating wire groove; 32. Reciprocating wire block; 4. Feeding rod; 41. Feeding plate; 5. Cutting rod; 51. Knife holder; 52. Cutting knife; 6. Guide rod; 61. Guide sleeve; 62. Guide slide rod; 63. Limiting rod; 7. Movable seat; 71. Electric push rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] This invention provides an open mill for producing recycled rubber. The open mill includes: a support frame 1; two mounting brackets 11 are fixedly installed on the top of the support frame 1, and a front roller 12 and a rear roller 13 are rotatably connected to the inner sides of the two mounting brackets 11 respectively; wherein, a support seat 2 is fixedly installed on the inner sides of the two mounting brackets 11, and a support plate 21 is installed on the inner sides of the two support seats 2 respectively, and a reciprocating moving assembly is installed between the two support plates 21; the reciprocating moving assembly includes a transmission rod 3, which is rotatably connected between the two support plates 21, and reciprocating wire grooves 31 are opened at both ends of the outer side of the transmission rod 3, and reciprocating wire blocks 32 are sleeved at both ends of the outer side of the transmission rod 3, and the interiors of the two reciprocating wire blocks 32 are threadedly connected to the reciprocating wire grooves 31 at the corresponding ends respectively; a feeding assembly, a cutting assembly, and a guiding assembly are correspondingly arranged on the periphery of the transmission rod 3, and the feeding assembly is used to feed the material attached to the front roller 12. The surface of the rubber material is cut by the cutting component, and the guide component limits and guides the movement of the two reciprocating wire blocks 32. The outer side of the mounting frame 11 is provided with a swing component, which is connected to the support plate 21. The swing component can drive the support plate 21 to swing, so as to switch the working state of the feeding component and the cutting component. The reciprocating moving component also includes a main synchronous wheel 22 rotatably connected to one side of one of the support plates 21. The outer side of the transmission rod 3 is equipped with a secondary synchronous wheel 23 corresponding to one end of the main synchronous wheel 22. The outer sides of the main synchronous wheel 22 and the secondary synchronous wheel 23 are connected by a synchronous belt. A motor for driving the main synchronous wheel 22 is installed on one side of the support plate 21. The reciprocating wire grooves 31 at both ends of the transmission rod 3 rotate in opposite directions so that when the transmission rod 3 rotates, the two reciprocating wire blocks 32 can make reciprocating linear movements in opposite directions along the transmission rod 3.

[0028] It should be noted that: Support frame 1 is the overall load-bearing base of this device, used to support and fix various functional components and ensure the overall operational stability of the equipment. Two sets of symmetrically arranged mounting frames 11 are fixedly mounted on the top of support frame 1. The front roller 12 and the rear roller 13 are respectively rotatably mounted on the inner sides of the two sets of mounting frames 11. Both the front roller 12 and the rear roller 13 adopt existing mature roller structures. The two cooperate with each other to realize the support and extension of rubber materials. The rubber materials are smoothly moved by the rotation of the rollers themselves, providing a stable material conveying foundation for subsequent material feeding and cutting processing. Supports are fixedly installed on the inner sides of the two sets of mounting frames 11. Each support base 2 has a support plate 21 mounted on its inner side. The two support plates 21 serve as the mounting carrier for the reciprocating moving component, providing a stable support space for its assembly and operation. The transmission rod 3 of the reciprocating moving component is rotatably mounted between the two support plates 21. Reciprocating thread grooves 31 with opposite directions of rotation are respectively opened at both ends of the outer side of the transmission rod 3, and reciprocating thread blocks 32 are respectively sleeved at the corresponding positions of the reciprocating thread grooves 31 at both ends of the outer side of the transmission rod 3. The reciprocating thread blocks 32 are threadedly matched and engaged with the corresponding reciprocating thread grooves 31. At the same time, the main synchronous pulley 22 is rotatably mounted on the outer side of the support plate 21, and the end of the transmission rod 3 corresponds to the main synchronous pulley 22. The auxiliary synchronous pulley 23 is fixedly mounted at position 2. The main synchronous pulley 22 and the auxiliary synchronous pulley 23 are connected by a synchronous belt. The motor that drives the main synchronous pulley 22 is mounted on the outside of the support plate 21. When the equipment is working, the motor drives the main synchronous pulley 22 to rotate, which drives the auxiliary synchronous pulley 23 to rotate synchronously via the synchronous belt. This drives the transmission rod 3 to rotate continuously. Relying on the reverse rotation structure of the reciprocating wire grooves 31 at both ends, the two reciprocating wire blocks 32 can synchronously complete the reciprocating linear displacement motion in opposite directions or in opposite directions as the transmission rod 3 rotates. The transmission rod 3 is equipped with a material feeding assembly, a material cutting assembly, and a guide assembly. The material feeding assembly is used to feed the material attached to the material. The rubber material on the surface of the front roller 12 is combed and combed. The cutting component is used to precisely cut the rubber material attached to the surface of the front roller 12. The guiding component is used to limit and guide the reciprocating stroke of the two reciprocating filament blocks 32 to avoid displacement deviation and jamming, and to ensure the accuracy of reciprocating movement and the stability of operation. At the same time, the swing component is mounted on the outside of the mounting frame 11 and forms a transmission connection with the support plate 21. The swing component can drive the support plate 21 to swing as a whole through power output, thereby realizing the flexible switching between the working state of the combing component and the working state of the cutting component, and meeting the operation requirements of different processing steps of rubber materials.

[0029] In an embodiment of the present invention, the feeding assembly includes feeding rods 4 respectively installed on the same side of the two reciprocating wire blocks 32. The ends of the two feeding rods 4 away from the reciprocating wire blocks 32 are connected to feeding plates 41. One end of the feeding rod 4 is provided with a bent part. The feeding plate 41 is a non-straight plate structure.

[0030] It should be noted that the feeding assembly is fitted on the same side of the two reciprocating wire blocks 32. Specifically, it includes feeding rods 4 respectively installed on the same side of the two reciprocating wire blocks 32, so that the feeding rods 4 can complete the reciprocating linear motion synchronously with the reciprocating wire blocks 32, providing a stable reciprocating power source for feeding operations. The ends of the two feeding rods 4 away from the reciprocating wire blocks 32 are fixedly connected to feeding plates 41. The feeding rods 4 are used to suspend and fix the feeding plates 41, ensuring that the feeding plates 41 accurately correspond to the material processing area of ​​the front roller 12. The curved part at the end of the feeding rod 4 can match the arc of the front roller 12. The outer circular structure abuts and slides, while the material feeding plate 41 adopts a non-flat plate structure. Compared with the traditional flat plate, it can increase the contact area with the rubber material and optimize the contact force shape. During the reciprocating movement of the reciprocating filament block 32, it can achieve comprehensive and uniform feeding, peeling and combing of the rubber material attached to the surface of the front roller 12. It can effectively eliminate the problems of rubber material adhesion, stacking and uneven adhesion, and ensure that the rubber material is laid flat on the roller surface. This provides a regular material processing state for the subsequent precise cutting process, greatly improving the material feeding and cleaning effect and the overall processing accuracy of the equipment.

[0031] In an embodiment of the present invention, the cutting assembly includes cutting rods 5 respectively installed on the same side as the two reciprocating wire blocks 32. Each of the two cutting rods 5 has a knife holder 51 installed at the relatively far end. Each of the two knife holders 51 has a cutting blade 52 rotatably connected to its inner side. The cutting blade 52 has an outwardly protruding arc-shaped structure and is a non-sharpened smooth blade structure.

[0032] It should be noted that the cutting assembly is mounted on the same side of the two reciprocating wire blocks 32. Specifically, this includes cutting rods 5 installed on the same side of the two reciprocating wire blocks 32, enabling the cutting rods 5 to move synchronously with the reciprocating wire blocks 32 in opposite directions or in a straight line, providing a stable reciprocating displacement base for the overall cutting operation. A blade holder 51 is fixedly mounted on the relatively far end of each of the two cutting rods 5. The blade holder 51 serves as a load-bearing structure for positioning, assembling, and firmly supporting the cutting blade 52. The inner sides of both blade holders 51 are rotatably connected to the cutting blade 52, allowing the cutting blade 52 to adaptively adjust its rotation angle according to the material contact state, effectively conforming to the material surface contour to improve cutting adaptability. The cutting blade 52 is set with... The outward-protruding arc-shaped structure of the cutting blade matches the arc-shaped structure of the front roller 12, increasing the effective cutting contact range with the rubber material. This enables continuous, close-fitting cutting of the rubber material adhering to the roller surface, avoiding localized cutting residue and uneven cutting. Meanwhile, the cutting blade 52 adopts a non-sharpened, smooth blade structure, which, while ensuring the cutting and separation effect of the rubber material, effectively avoids material damage, edge chipping, and chipping caused by excessive cutting of the material by the sharp blade. It also avoids the situation where the hard blade scratches and damages the surface of the front roller 12. While ensuring the quality of rubber material cutting and shaping, it effectively protects the roller substrate, extends the service life of the equipment, and improves the overall processing stability and product qualification rate.

[0033] In an embodiment of the present invention, the guide assembly includes guide rods 6 respectively installed on the same side of the two reciprocating screw blocks 32. The ends of the two guide rods 6 away from the two reciprocating screw blocks 32 are each connected to guide sleeves 61. Guide rods 62 are sleeved on the inner side of the two guide sleeves 61. The ends of the two guide rods 62 that are relatively far apart are respectively connected to the support plate 21. The ends of the two guide rods 62 that are relatively close are connected to a limit rod 63. The diameter of the limit rod 63 is larger than the diameter of the guide rod 62.

[0034] It should be noted that the guide assembly is installed on the same side of the two reciprocating screw blocks 32. Specifically, it includes guide rods 6 fixedly installed on the same side of the two reciprocating screw blocks 32. The guide rods 6 can reciprocate linearly synchronously with the reciprocating screw blocks 32, realizing the synchronization of the movement of the guide structure with the feeding assembly and the cutting assembly. The ends of the two guide rods 6 away from the reciprocating screw blocks 32 are fixedly connected to guide sleeves 61. Guide slide rods 62 are slidably fitted inside the two guide sleeves 61, thus forming a sliding guide fit structure. This effectively restricts the degree of freedom of movement of the reciprocating screw blocks 32, preventing circumferential rotation, offset, and shaking of the reciprocating screw blocks 32 during the drive of the transmission rod 3, and ensuring the accuracy and stability of the linear reciprocating motion of the reciprocating screw blocks 32. The two guide slide rods 62 are fixedly connected at their relatively far ends to the corresponding support plates 21, achieving stable assembly and positioning support of the guide slide rods 62 and ensuring the installation stability of the overall guide structure. The two guide slide rods 62 are fixedly connected at their relatively close ends to the limiting rod 63. The diameter of the limiting rod 63 is set to be larger than the diameter of the guide slide rod 62, so that the limiting rod 63 can form an effective blocking and limiting structure, which can limit the travel of the sliding guide sleeve 61, accurately limit the maximum travel of the reciprocating screw block 32, and prevent the guide sleeve 61 from detaching from the guide slide rod 62 or the reciprocating screw block 32 from overtraveling, causing structural collisions, component misalignment and equipment failure, and further improving the overall stability, safety and operational accuracy of the device.

[0035] In an embodiment of the present invention, the swing assembly includes a movable seat 7 rotatably connected to one of the top sides of one of the mounting brackets 11, an electric push rod 71 is mounted on the bottom of the movable seat 7, and the output end of the electric push rod 71 is connected to one of the support plates 21.

[0036] It should be noted that the swing assembly is located on the outside of the mounting frame 11 and is used to switch and adjust the working state of the whole machine. The swing assembly includes a movable seat 7 rotatably connected to one side of the top of one of the mounting frames 11. The movable seat 7 serves as the rotation reference carrier for swing adjustment and can adaptively rotate relative to the mounting frame 11, providing a reliable rotation reference for the subsequent angular swing of the support plate 21. An electric push rod 71 is fixedly mounted at the bottom of the movable seat 7. The telescopic output end of the electric push rod 71 is fixedly connected to the support plate 21 on the corresponding side, so that the electric push rod 71 can output linear driving force through its own telescopic movement and act on the support plate 21. 1. Relying on the rotational engagement of the movable seat 7, the support plate 21 is driven to swing and shift at an angle, thereby driving the reciprocating moving components, feeding components, and cutting components assembled between the support plate 21 to synchronously complete the overall posture switch. This accurately realizes the switching between the feeding component's working state of feeding material into the front roller 12 and the cutting component's working state of cutting material into the front roller 12. Automated process switching can be achieved without manual adjustment, effectively improving the convenience, response speed, and overall automation level of the equipment process switching, and ensuring the alignment accuracy and operational stability of different processing processes.

[0037] The working principle of the open mill for reclaimed rubber compounding provided by this invention is as follows: The entire equipment is supported by a support frame 1. The front roller 12 and the rear roller 13 rotate in opposite directions, continuously squeezing, shearing, and stretching the input reclaimed rubber material to complete the basic plasticizing and compounding of the rubber compound. Under the crushing action of the rollers, the rubber compound adheres to the surface of the front roller 12 and easily slides and disperses towards both ends of the roller. During the operation of the equipment, the motor starts and drives the main synchronous pulley 22 to rotate. Through the synchronous belt, the auxiliary synchronous pulley 23 and the transmission rod 3 rotate synchronously. By utilizing the threaded engagement of the reciprocating grooves 31 with opposite rotation directions at both ends of the transmission rod 3 and the reciprocating wire blocks 32, the two reciprocating wire blocks 32 are driven to move synchronously in opposite directions or back and forth along the transmission rod 3, driving the feeding assembly, cutting assembly, and guiding assembly assembled on the same side to operate synchronously. During the rubber compounding process, the electric push rod 71 of the oscillating component drives the support plate 21 to swing as a whole, adjusting the overall posture of the component. This causes the material feeding plate 41 of the feeding component to adhere to the two sides of the front roller 12. As the reciprocating filament blocks 32 move towards each other, the rubber material that has spread and slid outwards from both ends of the roller is continuously gathered and collected towards the center of the roller surface. This concentrates the rubber material in the core area of ​​the roller gap for repeated shearing and mixing, eliminating material leakage and uneven rubber distribution, and ensuring uniform plasticization of the rubber material. After the rubber material is uniformly mixed and the material on the roller surface is flat, the electric push rod 71 drives the support plate 21 to swing slightly to switch the working posture. This causes the arc-shaped cutting blade 52 of the cutting component to adhere to the surface of the front roller 12. Utilizing the adaptive rotation and adhesion characteristics of the cutting blade 52, the evenly spread rubber material is cut flat and wide, resulting in a neat and orderly discharge. Throughout the entire operation, the guide sleeve 61 of the guide component slides synchronously along the guide slide rod 62, providing full-range guidance and limiting for the reciprocating movement. It works in conjunction with the limit rod 63 to achieve overtravel protection, ensuring the accuracy and stability of the material feeding, rubber mixing, and cutting operations. The entire set of equipment automates the rubber compounding and precise cutting processes without manual intervention, effectively improving the automation level of the open mill and the processing quality of recycled rubber.

[0038] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A two-roll mill for producing recycled rubber compounding, characterized in that, include: Support frame (1); The support frame (1) has two mounting brackets (11) fixedly installed on its top. The front roller (12) and the rear roller (13) are rotatably connected to the inner sides of the two mounting brackets (11) respectively. Among them, a support base (2) is fixedly installed on the inner side of each of the two mounting brackets (11), a support plate (21) is installed on the inner side of each of the two support bases (2), and a reciprocating moving component is installed between the two support plates (21). The reciprocating moving assembly includes a transmission rod (3), which is rotatably connected between two support plates (21). Both outer ends of the transmission rod (3) are provided with reciprocating thread grooves (31), and both outer ends of the transmission rod (3) are fitted with reciprocating thread blocks (32). The interiors of the two reciprocating thread blocks (32) are threadedly connected to the corresponding reciprocating thread grooves (31). The transmission rod (3) is provided with a material feeding assembly, a material cutting assembly and a guide assembly on its periphery. The material feeding assembly is used to feed the rubber material attached to the surface of the front roller (12). The material cutting assembly is used to cut the rubber material attached to the surface of the front roller (12). The guide assembly is used to limit and guide the movement of the two reciprocating wire blocks (32). The mounting bracket (11) is provided with a swing assembly on its outer side. The swing assembly is connected to the support plate (21) in a transmission manner. The swing assembly can switch the working state of the feeding assembly and the cutting assembly by driving the support plate (21) to swing.

2. The open mill for reclaimed rubber compounding production according to claim 1, characterized in that, The reciprocating motion assembly also includes a main synchronous pulley (22) rotatably connected to one side of one of the support plates (21). A secondary synchronous pulley (23) is installed on the outer side of the transmission rod (3) at one end corresponding to the main synchronous pulley (22). The outer sides of the main synchronous pulley (22) and the secondary synchronous pulley (23) are connected by a synchronous belt. An electric motor for driving the main synchronous pulley (22) to rotate is installed on one side of the support plate (21).

3. The open mill for producing recycled rubber compounding according to claim 1, characterized in that, The feeding assembly includes feeding rods (4) installed on the same side of the two reciprocating screw blocks (32), and feeding plates (41) are connected to the ends of the two feeding rods (4) away from the reciprocating screw blocks (32).

4. The open mill for reclaimed rubber compounding production according to claim 3, characterized in that, One end of the feeding rod (4) is provided with a curved part, and the feeding plate (41) is a non-straight plate structure.

5. The open mill for reclaimed rubber compounding production according to claim 1, characterized in that, The cutting assembly includes cutting rods (5) installed on the same side of the two reciprocating wire blocks (32), and a knife holder (51) is installed at the opposite ends of the two cutting rods (5), and a cutting blade (52) is rotatably connected to the inner side of the two knife holders (51).

6. The open mill for producing recycled rubber compounding according to claim 5, characterized in that, The cutting blade (52) has an outwardly protruding arc-shaped structure, and the cutting blade (52) has a non-sharpened smooth blade body structure.

7. The open mill for producing recycled rubber compounding according to claim 1, characterized in that, The guide assembly includes guide rods (6) installed on the same side as the two reciprocating screw blocks (32). The ends of the two guide rods (6) away from the two reciprocating screw blocks (32) are connected to guide sleeves (61). The inner sides of the two guide sleeves (61) are fitted with guide rods (62). The ends of the two guide rods (62) that are relatively far apart are connected to the support plate (21).

8. The open mill for producing recycled rubber compounding according to claim 7, characterized in that, The two guide slides (62) are connected to a limit rod (63) at their relatively close ends. The diameter of the limit rod (63) is larger than the diameter of the guide slides (62).

9. The open mill for producing recycled rubber compounding according to claim 8, characterized in that, The swing assembly includes a movable seat (7) rotatably connected to one side of the top of one of the mounting brackets (11), and an electric push rod (71) is mounted on the bottom of the movable seat (7). The output end of the electric push rod (71) is connected to one of the support plates (21).

10. The open mill for producing recycled rubber compounding according to claim 1, characterized in that, The reciprocating grooves (31) at both ends of the transmission rod (3) rotate in opposite directions so that when the transmission rod (3) rotates, the two reciprocating wire blocks (32) can make reciprocating linear motions in opposite directions or in opposite directions along the transmission rod (3).

Images