Edge cutting device of rubber open mill

Abstract

The utility model provides an edge cutting device of a rubber open mill, which relates to the technical field of edge cutting devices of open mills and comprises a roller, the roller is horizontally and rotatably arranged between a pair of mounting seats, a first driving source is fixedly arranged on the mounting seats, the first driving source telescopically drives a support arm on one side of the roller, and an edge cutting component is slidably arranged in the support arm. The edge cutting assembly abuts against the roller when the supporting arm retracts, second driving sources are further fixedly arranged at the two ends of the supporting arm, the second driving sources drive material pushing plates in a relatively telescopic mode, material cutting assemblies are fixedly arranged on the opposite inner sides of the material pushing plates, and rolling grooves allowing the roller to be embedded and attached are formed in the sides, close to the roller, of the material pushing plates. The rolling groove and the material cutting assembly are separated from the roller when the edge cutting assembly abuts against the roller, the edge cutting assembly is driven by the first driving source to abut against the roller, continuous and stable contraction force can be provided, the material cutting assembly is driven by the second driving source to cut edge materials, the material pushing plate is driven to push and return the materials, and the working intensity and the safety risk of workers are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the edge cutting device of rubber mixing mill technical field especially relates to a rubber mixing mill edge cutting device. BACKGROUND

[0002] Rubber mixing mill is widely used in rubber product factory, plastic product factory and other polymer material processing field, and the temperature and rotating speed of roller can be accurately controlled, so that the accurate control of rubber material processing technology and product quality can be realized, and the rubber mixing mill has the advantages of high production efficiency, stable processing quality, wide application range and the like, and a pair of rotating grinding rollers are generally arranged in the rubber mixing mill, when the rubber raw material passes through the roller gap, the rubber raw material is ground into smaller particles under the friction of the roller surface. At the same time, through the heating system, the roller surface generates heat, so that the rubber raw material gradually heats up during the grinding process, and the rubber raw material and the additive are stirred and heated by the roller surface after heating, the lateral displacement, rotation and vertical pressure of the rubber raw material change, so that the rubber raw material gradually adheres, and the additive is uniformly dispersed in the rubber, but because the mixing process is completed through the extrusion action between the rollers, the edges of the rubber strips are irregular, direct slitting cannot guarantee the weight of each rubber material, and there is a material shortage problem in edge slitting, so that an edge cutting machine is needed to cut the rubber strips, which not only reduces the production efficiency, but also is not conducive to the recycling of the edge material.

[0003] In the prior art, a kind of rubber mixing mill piece trimming mechanism with the authorization announcement No.CN220162928U, roller and trimming assembly are oppositely installed on rack, fixed clamping groove is arranged on the both sides of rack, the both ends of traction rod of trimming assembly are arranged in fixed clamping groove, cutter arm and blade are provided with two groups, cutter arm one end is sleeved on traction rod, blade is installed on the other end of cutter arm, and blade is abutted on the surface of roller.The mechanism designs blade type trimming two head edge residual material in rubber mixing mill, and blade contacts rubber mixing mill roller to rotate, so that two head edge is neat.

[0004] But in the above structure, after the edge of rubber strip is trimmed by the abutment of blade on the surface of roller, the cut edge material still rotates around the roller, and it needs to be cleaned to avoid affecting production, usually, workers manually cut it and take it down for separate processing or re-feeding extrusion in roller, but in mass production, this can easily increase the working intensity of workers, and manual material taking has certain risk, which is not conducive to safe and stable production. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides an edge cutting device of rubber mixing mill, which solves the problem of manual secondary processing of edge material in the prior art, increases the working intensity and safety risk of workers.

[0006] According to the embodiment of the utility model, a rubber calender edge cutting device, which comprises

[0007] Supporting arm, the supporting arm is driven to be telescopically arranged on one side of the roller by the first drive source fixedly arranged outside the roller, the supporting arm is slidably arranged with an edge cutting assembly, the edge cutting assembly abuts against the roller when the supporting arm is contracted, and the supporting arm is also fixedly arranged with a second drive source at both ends;

[0008] A pair of material pushing plates, the two material pushing plates are telescopically arranged relative to each other by the second drive source, the relative inner sides of the two material pushing plates are fixedly arranged with cutting assemblies in the axial direction, the material pushing plates are provided with rolling grooves close to one side of the roller, the rolling grooves and the cutting assemblies are away from the roller when the edge cutting assembly abuts against the roller;

[0009] The technical principle of the utility model is as follows: in use, according to the production requirement of rubber pull tabs, the position of the edge cutting assembly is adjusted, then the first drive source is started to contract the supporting arm, so that the edge cutting assembly abuts against the roller, at this time, the rolling groove and the cutting assembly are away from the roller, the edge cutting assembly cuts the extruded rubber pull tab, the rubber pull tab on the roller forms a qualified pull tab between the blades and forms edge material outside the blades, the worker discharges the qualified rubber pull tab in the middle, then the second drive source is started to drive the supporting arm to reciprocatingly telescopically move, the cutting assembly cuts the edge material in the axial direction, and the material pushing plate pushes the cut edge material to the middle of the roller, the edge material is extruded again by the roller to form a qualified rubber pull tab, with the continuous linkage of the cutting assembly and the material pushing plate, the edge material is completely changed into a qualified pull tab, and the working strength and safety risk of the worker are greatly reduced.

[0010] Further, the edge cutting assembly comprises a pair of fixed plates, one side of the fixed plate is rotatably provided with a blade, the other side of the fixed plate is fixedly connected with a sliding block, and one side of the supporting arm close to the roller is provided with a sliding groove for embedding and sliding the sliding block.

[0011] Further, a lead screw is rotatably arranged in the sliding groove in the axial direction, the lead screw is fixedly connected with a rotating disc at one end of the supporting arm, and a threaded hole engaged with the lead screw is through arranged on the sliding block.

[0012] Further, a cylindrical seat is hollowly arranged in the middle of the blade, a plurality of first springs are fixedly connected around the curved surface of the cylindrical seat, the first springs are fixedly connected with the inner wall of the blade, and the flat end surface of the cylindrical seat is rotatably connected with the fixed plate.

[0013] Further, the relative inner sides of the material pushing plate are provided with inclined guide curves, and the distance between the bottom of the two guide curves is greater than the distance between the top.

[0014] Further, the cutting assembly comprises a cutting knife, which is fixedly arranged at the top end of the guide curve.

[0015] Further, the first driving source comprises a first air cylinder, which is fixedly arranged outside the roller, and the output end of the first air cylinder is fixedly connected with the supporting arm.

[0016] Further, the second driving source comprises a second air cylinder, and the output end of the second air cylinder is fixedly connected with the pushing plate.

[0017] Further, the pushing plate is fixedly connected with a mounting block through a second spring on the side away from the rolling groove, and the mounting block is fixedly connected with the output end of the second air cylinder.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. By adopting the first driving source to drive the supporting arm to contract, the edge cutting assembly and the roller are abutted, the first driving source can provide continuous and stable contraction force, compared with the traditional mode that the blade is abutted with the roller through fastening, it is more stable and reliable, and the situations that the blade is loose in the use process and cannot meet the production, is too tight and needs to be adjusted for many times and the like are avoided.

[0020] 2. By arranging the cutting assembly to axially cut the edge material, and driving the pushing plate through the second driving source to push the cut edge material to return, the edge material in rotation can be cut, the material is wound and returned by artificial, the safety risk existing in the production process is reduced, and the working strength of workers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall assembly structure schematic view of the utility model embodiment and the roller.

[0022] Figure 2 It is an overall structure schematic view of the utility model embodiment.

[0023] Figure 3 It is Figure 2 It is a structure schematic view of A.

[0024] Figure 4 It is an edge cutting assembly structure schematic view of another utility model embodiment.

[0025] In the above drawings: 1, roller; 11, mounting seat; 12, bottom plate; 2, support arm; 21, first cylinder; 22, second cylinder; 23, screw rod; 231, rotating disc; 24, sliding groove; 3, blade; 31, fixed plate; 32, sliding block; 321, threaded hole; 33, hollow part; 34, cylindrical seat; 35, first spring; 36, limiting plate; 4, pushing plate; 41, rolling groove; 42, material guiding curved surface; 43, mounting block; 44, second spring; 45, limiting column; 46, cutting knife. DETAILED DESCRIPTION

[0026] The technical solutions in the utility model are further described below with reference to the drawings and examples.

[0027] As Figure 1 shown in the utility model embodiment, a rubber mill edge cutting device is fixedly arranged on one side of a rubber mill, the rubber mill usually comprises a pair of rollers 1 rotating in opposite directions, the roller 1 is rotationally arranged between a pair of support seats 11, in the embodiment proposed in the utility model, only one rotating roller 1 is shown for the convenience of illustration.

[0028] As Figure 1 and Figure 2 shown in the utility model embodiment, a rubber mill edge cutting device is fixedly arranged on one side of a rubber mill, the rubber mill usually comprises a pair of rollers 1 rotating in opposite directions, the roller 1 is rotationally arranged between a pair of support seats 11, in the embodiment proposed in the utility model, only one rotating roller 1 is shown for the convenience of illustration.

[0029] As Figure 1 , Figure 2 and Figure 4As shown, the cutting assembly is arranged to slide in the support arm 2, the cutting assembly includes a pair of fixed plates 31, one side of the fixed plate 31 is rotatably provided with a blade 3, the blade 3 is circular, and the material is preferably wear-resistant material, the other side of the fixed plate 31 is fixedly connected with a sliding block 32, the support arm 2 is provided with a sliding groove 24 for the sliding block 32 to embed and slide, further, the sliding groove 24 is axially rotatably provided with a lead screw 23, the lead screw 23 is fixedly connected with a rotating disc 231 at one end of the support arm 2, the rotating disc 231 can drive the lead screw 23 to rotate, a threaded hole 321 is arranged through the sliding block 32 and engages with the lead screw 23, when the lead screw 23 rotates, the sliding block 32 engaged with the lead screw 23 moves axially, thereby controlling the position of the blade 3, the blade 3 abuts against the roller 1 when the support arm 2 is retracted, when the roller 1 rotates, the blade 3 cuts the rubber pull piece on the roller 1, thereby making the rubber pull piece edge neat.

[0030] As Figures 1-3 Further, in the present embodiment, the support arm 2 is further provided with a pair of second driving sources at both ends, the two second driving sources relatively drive a pair of pushing plates 4, in the present embodiment, the second driving source includes a second cylinder 22, the output end of the second cylinder 22 is fixedly connected with the pushing plate 4 to drive the pushing plate 4 to push the cut edge material back, a cutting assembly is fixedly arranged on the inner side of the two pushing plates 4 along the axis, the cutting assembly includes a cutting knife 46, the pushing plate 4 is provided with a rolling groove 41 close to the roller 1, the cutting edge of the cutting knife 46 and the groove wall of the rolling groove 41 are preferably in the same plane, so that the rolling groove 41 and the cutting assembly are away from the roller 1 when the cutting assembly abuts against the roller 1, at this time, when the second cylinder 22 drives the support arm 2 to relatively reciprocatingly move, the cutting knife 46 will cut the edge material axially, the edge material originally following the roller 1 to rotate will be blocked by the pushing plate 4 after being cut, thereby starting to roll inward along the cut, and the rolled edge material will gradually move to the middle with the pushing plate 4, and finally complete the return operation.

[0031] The technical principle of this utility model is as follows: In use, according to the production requirements of rubber sheet, the rotating disk 231 is rotated to adjust the relative position of the blade 3. After the position is determined, the first cylinder 21 is activated to retract the support arm 2, so that the blade 3 and the roller 1 come into contact. At this time, the rolling groove 41 and the cutting knife 46 are in a position away from the roller 1. The blade 3 will cut the extruded rubber sheet. The part of the rubber sheet on the roller 1 between the blades 3 forms a qualified sheet, and the part outside the blades 3 forms edge material. The worker feeds the qualified rubber sheet in the middle. Then, the second cylinder 22 is activated to drive the support arm 2 to reciprocate and extend. The cutting knife 46 will cut the edge material axially. At the same time, the pusher plate 4 will push the cut edge material to move towards the middle of the roller 1. The edge material forms a qualified rubber sheet under the secondary extrusion of the rotating roller 1. With the continuous linkage and cooperation of the cutting component and the pusher plate 4, the edge material will be completely transformed into a qualified sheet by itself, which greatly reduces the labor intensity and safety risks of workers.

[0032] This embodiment employs a first cylinder 21 to retract the support arm 2, causing the blade 3 and roller 1 to come into contact. The cylinder provides a continuous and stable retraction force, which is more stable and reliable than the traditional method of tightening the blade 3 to bring it into contact with the roller 1. This avoids situations where the blade 3 becomes loose during use, leading to production issues or requiring multiple adjustments due to excessive tightness. Furthermore, a cutting blade 46 is used to axially cut the edge material, and a second cylinder 22 drives a pusher plate 4 to push the cut edge material back to its original position. This method can replace manual cutting, rolling, and re-returning of rotating edge material, achieving fully automated re-returning, reducing safety risks during production, and lowering the workload of workers.

[0033] like Figure 1 , Figure 2 and Figure 4 As shown, according to another embodiment of the present invention, the blade 3 has a hollow portion 33 in the middle, and a cylindrical seat 34 is elastically disposed in the hollow portion 33. The cylindrical seat 34 includes a curved cylindrical surface and a horizontal flat end surface. A plurality of first springs 35 are fixedly connected around the curved cylindrical surface of the cylindrical seat 34. The first springs 35 are fixedly connected to the inner wall of the hollow portion 33 of the blade 3. The flat end surface of the cylindrical seat 34 is rotatably connected to the fixing plate 31. Preferably, the fixing plate 31 is a U-shaped structure. The blade 3 is rotatably clamped between the open ends of the U-shaped structure to further increase the stability of the blade 3 rotation. At the same time, the flat end surface of the cylindrical seat 34 is also horizontally extended with a limiting plate 36. The length of the limiting plate 36 exceeds the width of the hollow portion 33 so that the blade 3 is stably restricted between the limiting plates 36 during rotation and will not come out.

[0034] like Figures 1-3As shown, in another embodiment, the pusher plate 4 is further provided with a limiting post 45 fixedly connected to the side away from the rolling groove 41. The other end of the limiting post 45 is slidably connected to an mounting block 43. The mounting block 43 is fixedly connected to the output end of the second cylinder 22. A second spring 44 is also arranged around the limiting post 45. The two ends of the second spring 44 are fixedly connected to the pusher plate 4 and the mounting block 43, respectively.

[0035] Based on the above improvements, since a first spring 35 is arranged around the connection of the blade 3, the blade 3 can provide buffering from multiple angles when it comes into contact with the roller 1, avoiding rigid contact, extending the service life of the blade 3 and the roller 1, and increasing the applicability of the device. At the same time, by setting a second spring 44 between the pusher plate 4 and the mounting block 43, buffering can be effectively provided, reducing the rigid impact generated by the rolling groove 41 and the rubber on the roller 1 when the pusher plate 4 is pushed, and extending the service life of the pusher plate 4 and the roller 1.

[0036] like Figures 1-2 As shown, in another embodiment, the pusher plate 4 is further provided with inclined guide surfaces 42 on its relatively inner side, and the bottom distance between the two guide surfaces 42 is greater than the top distance, that is, the axial length of the top of the pusher plate 4 is greater than the axial width of its bottom, and the cutting blade 46 is located at the top of the guide surface 42.

[0037] Based on the above improvements, since the guide surface 42 is inclined and the cutting blade 46 is located at the top of the guide surface 42, when the two push plates 4 move towards each other, the top of the push plate 4 will contact the edge material first because the axial length of the top of the push plate 4 is longer. The edge material will be cut by the cutting blade 46. As the roller 1 continues to rotate and the push plate 4 continues to push, the cut edge material will roll inward along the inclined guide surface 42 and move towards the middle of the roller 1. The edge material forms a qualified rubber sheet under the secondary extrusion of the roller 1. With the continuous linkage and cooperation of the cutting component and the push plate 4, the edge material will be completely transformed into a qualified sheet by itself. In this embodiment, the inclined guide surface 42 can make the edge material roll more evenly and smoothly, which is more conducive to the automatic return of the edge material.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rubber open mill edge trimming device, characterized in that, Include: Supporting arm (2), the supporting arm (2) is driven by the first drive source fixedly arranged outside the roller (1) and is telescopically arranged at one side of the roller (1), a trimming assembly is slidably arranged in the supporting arm (2), the trimming assembly is abutted with the roller (1) when the supporting arm (2) is contracted, and the supporting arm (2) is also fixedly provided with the second drive source at both ends; A pair of pushing plates (4) are telescopically arranged relative to each other by the second drive source, and a cutting assembly is fixedly arranged on the inner side of the two pushing plates (4) relative to each other along the axial direction, the pushing plate (4) is provided with a rolling groove (41) close to one side of the roller (1), the roller (1) can be embedded and fitted, and the rolling groove (41) and the cutting assembly are respectively separated from the roller (1) when the trimming assembly is abutted with the roller (1).

2. A rubber mill trimming device as defined in claim 1, wherein: The trimming assembly includes a pair of fixed plates (31), the fixed plate (31) is rotatably provided with a blade (3) on one side, the fixed plate (31) is fixedly connected with a sliding block (32) on the other side, and the supporting arm (2) is provided with a sliding groove (24) close to one side of the roller (1) for embedding and sliding of the sliding block (32).

3. A rubber mill trimming device as defined in claim 2 wherein: The sliding groove (24) is axially rotatably provided with a lead screw (23), the lead screw (23) is fixedly connected with a rotating disc (231) at one end of the supporting arm (2), and a threaded hole (321) engaged with the lead screw (23) is throughly arranged on the sliding block (32).

4. A rubber mill trimming device as defined in claim 2 wherein: The blade (3) is hollowly provided with a cylindrical seat (34) in the middle, a plurality of first springs (35) are fixedly connected around the curved cylindrical surface of the cylindrical seat (34), the first springs (35) are fixedly connected with the inner wall of the blade (3), and the flat end surface of the cylindrical seat (34) is rotatably connected with the fixed plate (31).

5. A rubber mill trimmer as defined in claim 1, wherein: The opposite inner sides of the pushing plate (4) are provided with inclined guide curves (42), and the distance between the bottom ends of the two guide curves (42) is greater than the distance between the top ends.

6. A rubber mill trimming device as claimed in claim 5, wherein: The cutting assembly includes a cutting knife (46), and the cutting knife (46) is fixedly arranged at the top end of the guide curve (42).

7. A rubber mill trimmer as defined in claim 1, wherein: The first drive source includes a first air cylinder (21), the first air cylinder (21) is fixedly arranged outside the roller (1), and the output end of the first air cylinder (21) is fixedly connected with the supporting arm (2).

8. A rubber mill trimming device as defined in claim 1 wherein: The second drive source includes a second air cylinder (22), and the output end of the second air cylinder (22) is fixedly connected with the pushing plate (4).

9. A rubber mill trimming device as defined in claim 8 wherein: The pushing plate (4) is fixedly connected with a mounting block (43) on the side away from the rolling groove (41) through a second spring (44), and the mounting block (43) is fixedly connected with the output end of the second air cylinder (22).

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