Raw rubber cutting device for rubber mixing production line

Abstract

The utility model discloses a raw rubber cutting device for a rubber mixing production line. The raw rubber cutting device comprises a support and a bottom plate arranged on the support. A cutting mechanism is arranged on the bottom plate and comprises a fixed plate and a movable plate; a guide column is arranged on the movable plate; supporting springs are arranged on the guide columns; a cutting knife is arranged on the movable plate, and one side of the movable plate abuts against the cam. A transmission shaft penetrates through the cam and is hinged to the supporting frame. The support is connected to a rack of the feeding device. A transmission mechanism is arranged on a main shaft of the feeding device, and the main shaft is in transmission connection with a driving device. The transmission mechanism comprises a driving wheel and a driven wheel, and the driving wheel and the driven wheel are in transmission connection through a transmission piece. According to the raw rubber cutting device for the rubber mixing production line, raw rubber cutting operation before raw rubber plastifying and mixing can be carried out through a specific structure, the raw rubber cutting device is used for the rubber mixing production line, the load of a rotor of an internal mixer can be reduced during raw rubber plastifying and mixing, and the rubber mixing quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutting device, concretely relates to a raw rubber cutting device for rubber mixing production line. BACKGROUND

[0002] Rubber refers to the high-elastic polymer material with reversible deformation, which is rich in elasticity at room temperature, can produce large deformation under the action of small external force, and can restore to original state after removing external force. The general rubber forming process includes plastication, mixing, calendering or extrusion, molding and vulcanization and other basic processes, each process has different requirements for products, and is matched with several auxiliary operations. In order to add various required compounding agents to rubber, raw rubber needs to be plasticated first to improve its plasticity; then carbon black and various rubber additives are uniformly mixed with rubber to form rubber compound through mixing; the rubber compound is extruded to form a certain shape blank; then it is combined with textile material (or metal material) coated with rubber by calendering or coating to form a semi-finished product; finally, the semi-finished product with plasticity is made into a final product with high elasticity through vulcanization.

[0003] Among them, when the raw rubber is plasticated and mixed, the raw rubber sheet is generally long, which can cause great burden on the mixer rotor after being directly put into the mixer, resulting in too high temperature of the mixer rotor, causing the rubber compound to be scrapped or even smoking and fire, and further causing great economic loss. Therefore, before entering the mixer, the raw rubber generally needs to be cut into rubber blocks to reduce the load of the mixer rotor.

[0004] For example, Chinese patent CN215037890U discloses a novel energy-saving and environment-friendly online rubber cutting device, which comprises a rack, a fixed knife mechanism and a rolling knife mechanism; the fixed knife mechanism is arranged on the rack; the rolling knife mechanism is rotatably arranged on the rack and located on one side of the fixed knife mechanism; when the rolling knife mechanism rotates relative to the rack, the rolling knife mechanism can intermittently cooperate with the fixed knife mechanism to cut the rubber sheet between them; the online rubber cutting device further comprises a feeding mechanism, which comprises an inclined transport roller set and a pressure roller arranged on the upper side of the transport roller set; the inclined transport roller set is used to transport the rubber sheet between the fixed knife mechanism and the rolling knife mechanism, and the pressure roller is used to flatten and flatten the rubber sheet, so as to facilitate the cutting of the rubber sheet by the fixed knife mechanism and the rolling knife mechanism.

[0005] In the above prior art, the rolling knife and the fixed knife are used to cut the rubber sheet, but the structure of the rolling knife is relatively complex, the manufacturing process is relatively complicated, and the production cost is relatively high; and the feeding mechanism and the cutting mechanism are two independent devices, which are driven by different driving devices, so the energy consumption is relatively high during production. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the raw rubber cutting device for rubber mixing production line is provided.The raw rubber cutting device for rubber mixing production line can perform the raw rubber cutting operation before plasticizing and mixing of raw rubber, can reduce the load of the rotor of the internal mixer during plasticizing and mixing of raw rubber, and ensure the rubber mixing quality; the cutting mechanism and the feeding mechanism share one driving device, the energy consumption is low, and the production efficiency of the enterprise can be improved; the cutting mechanism is simple in structure, easy to manufacture, and beneficial to promotion.

[0007] The technical scheme of the present application is:

[0008] The raw rubber cutting device for rubber mixing production line comprises a support and a bottom plate arranged on the support; the bottom plate is provided with a cutting mechanism; the cutting mechanism comprises a fixed plate and a movable plate; one end of the fixed plate is connected with the bottom plate, and the other end is provided with a guide hole; the movable plate is provided with a guide column; the outer surface of the guide column and the inner surface of the guide hole form a sliding pair structure; a supporting spring is arranged on the guide column and between the fixed plate and the movable plate; a cutting knife is arranged on the side of the movable plate close to the bottom plate; the side of the movable plate away from the bottom plate is in abutment with a group of cams; a transmission shaft is arranged through the cam; the transmission shaft is hinged to a supporting frame; one end of the supporting frame is connected to the support; one end of the support is connected to the rack of a feeding device; a transmission mechanism is arranged between the main shaft of the feeding device and the transmission shaft of the cutting mechanism; a driving device is drivingly connected to the main shaft; the transmission mechanism comprises a driving wheel arranged on the main shaft and a driven wheel arranged on the transmission shaft; the driving wheel and the driven wheel are drivingly connected through a transmission member; during operation, the cam and the supporting spring cooperate with each other to realize the up-down reciprocating movement of the cutting knife.

[0009] Compared with the prior art, the raw rubber cutting device for rubber mixing production line can realize the up-down reciprocating movement of the cutting knife through the cooperation of the cam and the supporting spring, perform the raw rubber cutting operation before plasticizing and mixing of raw rubber, reduce the load of the rotor of the internal mixer during plasticizing and mixing of raw rubber, ensure the rubber mixing quality, and realize the linkage of the cutting mechanism and the conveyor of the feeding device through the driving connection between the driving wheel, the driven wheel, the transmission member, the main shaft of the feeding device, and the transmission shaft of the cutting mechanism, so that one driving device can drive the feeding device and the cutting mechanism to work, the energy consumption is low during operation, and the production efficiency of the enterprise is improved.

[0010] As optimization, the preceding raw rubber cutting device for rubber mixing production line, the driving wheel and the driven wheel are sprocket structures, and the transmission member is a chain. With this structure, the chain transmission realizes power transmission through the meshing of the sprocket and the chain, has an accurate average transmission ratio, can ensure that the size of each rubber strip cut is consistent, enables the raw rubber to be more uniformly formed during plasticizing and mixing, and the rubber strips of consistent size are beneficial to further reduce the load of the rotor of the internal mixer.

[0011] As optimization, the preceding raw rubber cutting device for rubber mixing production line, the driven wheel is a multi-stage wheel group composed of multiple sprockets with different numbers of teeth; a guide wheel is arranged below the driven wheel, and a rear derailleur is connected to the guide wheel; the rear derailleur is arranged on the support frame and is used to drive the guide wheel to move the transmission member on the driven wheel to another sprocket of the driven wheel. With this structure, the rear derailleur drives the guide wheel to move the transmission member on the driven wheel to another sprocket of the driven wheel to realize multi-stage speed change, so that the cutting mechanism can cut rubber strips of different sizes to meet different process requirements during rubber mixing, thereby improving the practicality of the cutting device and being beneficial to promotion.

[0012] As optimization, the preceding raw rubber cutting device for rubber mixing production line, an adjusting mechanism is arranged on the support frame, the adjusting mechanism includes a finger dial adjuster and a cable; one end of the cable is connected to the rear derailleur, and the other end is connected to the finger dial adjuster; a fixing rod is arranged between the finger dial adjuster and the support frame and is used to install and fix the finger dial adjuster. During use, the rear derailleur can be driven to move by only dialing the finger dial adjuster to realize multi-stage speed change operation; this structure is simple to operate and is convenient for promotion.

[0013] As optimization, the preceding raw rubber cutting device for rubber mixing production line, a connecting sleeve is arranged on the driving wheel, the connecting sleeve is fixedly connected to the driving wheel through a screw, and the connecting sleeve is keyed to the main shaft. This structure is reliable in connection and convenient to assemble and disassemble.

[0014] As optimization, the preceding raw rubber cutting device for rubber mixing production line, a knife groove matched with the cutting knife head of the cutting knife is arranged on the bottom plate. With this structure, the cutting knife can be matched with the knife groove during cutting to ensure that the raw rubber is completely cut off, and the reliability of the cutting device is improved.

[0015] As optimization, the preceding raw rubber cutting device for rubber mixing production line, a limiting nut is arranged on the guide column below the fixed plate. With this structure, the limiting nut can be screwed on the guide column after the movable plate and the supporting spring are installed to limit the movable plate, and the installation of the cam and the transmission shaft is facilitated.

[0016] As optimization, the dust cover is arranged above the bottom plate in the aforementioned raw rubber cutting device for rubber mixing production line. The dust cover can prevent dust and avoid the cut raw rubber from falling out of the side of the bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a use state diagram of the raw rubber cutting device for rubber mixing production line of the present application Figure 1 ;

[0018] Figure 2 is a use state diagram of the raw rubber cutting device for rubber mixing production line of the present application Figure 2 ;

[0019] Figure 3 is a structure diagram of the raw rubber cutting device for rubber mixing production line of the present application

[0020] Figure 4 is Figure 3 a structure diagram without the dust cover

[0021] Figure 5 is Figure 4 another perspective view of the structure

[0022] Figure 6 is Figure 3 a structure diagram of part of the structure

[0023] Figure 7 is a structure diagram of part of the cutting mechanism of the present application

[0024] Figure 8 is a structure diagram of the fixed plate in the cutting mechanism of the present application

[0025] The marks in the drawings are: 1- support; 2- bottom plate, 21- knife groove; 3- cutting mechanism, 31- fixed plate, 311- guide hole, 32- movable plate, 321- guide column, 33- support spring, 34- cutting knife, 35- cam, 36- transmission shaft; 4- support frame; 5- feeding device, 51- rack, 52- main shaft, 53- driving device; 6- transmission mechanism, 61- driving wheel, 62- driven wheel, 63- transmission member, 64- guide wheel, 65- rear shift gearbox; 7- adjusting mechanism, 71- finger dial adjuster, 72- cable, 73- fixed rod; 8- connecting sleeve; 9- dust cover. DETAILED DESCRIPTION

[0026] The present application will be further described below in combination with the drawings and examples, but it is not limited to the basis of the application. The contents not described in detail in the following examples or not shown in detail in the drawings are all technical common sense in the art.

[0027] Example (seeFigures 1-8

[0028] The raw rubber cutting device for rubber mixing production line comprises a support 1 and a bottom plate 2 arranged on the support 1; a cutting mechanism 3 is arranged on the bottom plate 2; the cutting mechanism 3 comprises a fixed plate 31 and a movable plate 32; one end of the fixed plate 31 is connected with the bottom plate 2, and the other end is provided with a guide hole 311; a guide column 321 is arranged on the movable plate 32; the outer surface of the guide column 321 and the inner surface of the guide hole 311 form a sliding pair structure; a supporting spring 33 is arranged on the guide column 321 and between the fixed plate 31 and the movable plate 32; a cutting knife 34 is arranged on one side of the movable plate 32 close to the bottom plate 2; one side of the movable plate 32 away from the bottom plate 2 abuts against a group of cams 35; a transmission shaft 36 is arranged through the cam 35; the transmission shaft 36 is hinged with a supporting frame 4; one end of the supporting frame 4 is connected with the support 1; one end of the support 1 is connected with a rack 51 of a feeding device 5; a transmission mechanism 6 is arranged between a main shaft 52 of the feeding device 5 and the transmission shaft 36 of the cutting mechanism 3; the main shaft 52 is drivingly connected with a driving device 53; the transmission mechanism 6 comprises a driving wheel 61 arranged on the main shaft 52 and a driven wheel 62 arranged on the transmission shaft 36; the driving wheel 61 and the driven wheel 62 are drivingly connected through a transmission member 63; during operation, the cam 35 and the supporting spring 33 cooperate with each other to realize the up-down reciprocating movement of the cutting knife 34.

[0029] In the embodiment, the driving wheel 61 and the driven wheel 62 are both sprocket structures, and the transmission member 63 is a chain. By adopting this structure, the chain transmission realizes power transmission through the meshing of the sprocket and the chain, has an accurate average transmission ratio, can ensure that the size of each rubber strip cut out is consistent, and enables the raw rubber to be uniformly formed during plasticizing and mixing, and the rubber strips with consistent size are beneficial to further reducing the load of the rotor of the internal mixer.

[0030] In the embodiment, the driven wheel 62 is a multi-stage wheel group composed of a plurality of sprockets with different numbers of teeth; a guide wheel 64 is arranged below the driven wheel 62; the guide wheel 64 is connected with a rear derailleur 65; the rear derailleur 65 is arranged on the supporting frame 4 and is used to drive the guide wheel 64 to move the transmission member 63 on the driven wheel 62 to another sprocket of the driven wheel 62. By this structure, the rear derailleur 65 drives the guide wheel 64 to move the transmission member 63 on the driven wheel 62 to another sprocket of the driven wheel 62 to realize multi-stage speed change, so that the cutting mechanism 3 can cut out rubber blocks with different sizes to meet different process requirements during rubber mixing, thereby improving the practicability of the cutting device and being beneficial to popularization.

[0031] ​In the embodiment, the support 1 is provided with an adjusting mechanism 7, which comprises a finger-adjusting device 71 and a cable 72. One end of the cable 72 is connected with the rear-adjusting gear 65, and the other end is connected with the finger-adjusting device 71. A fixing rod 73 is arranged between the finger-adjusting device 71 and the support 1, and is used for fixing the finger-adjusting device 71. In use, the rear-adjusting gear 65 is controlled to drive the guide wheel 64 to move by adjusting the finger-adjusting device 71, so that multi-stage speed changing operation is realized. The design is based on the principle of the speed changing device of a bicycle, and relevant parts can be directly purchased or customized, so that the design is easy to implement and simple to operate.

[0032] In the embodiment, the driving wheel 61 is provided with a connecting sleeve 8, which is fixedly connected with the driving wheel 61 through screws. The connecting sleeve 8 is keyed with the main shaft 52. The structure is reliable in connection and convenient to assemble and disassemble.

[0033] In the embodiment, the bottom plate 2 is provided with a cutter groove 21 matched with the cutter head of the cutting knife 34. The structure can ensure that the cutting knife 34 is matched with the cutter groove 21 during cutting, so that the cutting device is improved in reliability.

[0034] In the embodiment, a limiting nut is arranged on the guide column 321 below the fixing plate 31. The structure can limit the movable plate 32 after the movable plate 32 and the supporting spring 33 are installed, so that the cam 35 and the transmission shaft 36 are conveniently installed.

[0035] In the embodiment, the top of the bottom plate 2 is provided with a dust cover 9. The dust cover 9 can prevent dust and avoid the cut rubber from falling out of the side of the bottom plate 2.

[0036] In use of the rubber cutting device of the rubber mixing production line, the finger-adjusting device 71 is adjusted to adjust the transmission ratio between the driving wheel 61 and the driven wheel 62 to a value required by the process. The rubber is placed on the feeding device 5, and the driving device 53 is started. The conveying belt in the feeding device 5 conveys the rubber to the cutting device, and the cutting knife 34 of the cutting device reciprocates up and down under the cooperation of the cam 35 and the supporting spring 33 to automatically cut the passing rubber.

[0037] The general description of the utility model involved in the present application and the description of the specific embodiments should not be understood as a limitation on the technical scheme of the utility model. Based on the disclosure of the present application, the skilled in the art can add, reduce or combine the disclosed technical features in the general description or / and the specific embodiments (including the embodiments) without violating the elements of the utility model involved, to form other technical schemes within the protection scope of the present application.

Claims

1. A raw rubber cutting device for a rubber mixing production line, characterized by: The invention comprises a bracket (1) and a bottom plate (2) arranged on the bracket (1); a cutting mechanism (3) is provided on the bottom plate (2), and the cutting mechanism (3) comprises a fixed plate (31) and a movable plate (32), one end of the fixed plate (31) is connected to the bottom plate (2), and the other end is provided with a guide hole (311); a guide column (321) is provided on the movable plate (32), and the outer surface of the guide column (321) and the inner surface of the guide hole (311) form a sliding pair structure; a support spring (33) is provided on the guide column (321) and located between the fixed plate (31) and the movable plate (32); a cutting knife (34) is provided on the side of the movable plate (32) close to the bottom plate (2), and a side of the movable plate (32) away from the bottom plate (2) is in contact with a group of cams (35); the cams (35) are provided with a plurality of support springs (33) on the guide column (321). A transmission shaft (36) passes through the support frame (4), the transmission shaft (36) is hinged to the support frame (4), one end of the support frame (4) is connected to the support frame (1); one end of the support frame (1) is connected to the frame (51) of the feeding device (5); a transmission mechanism (6) is provided between the main shaft (52) of the feeding device (5) and the transmission shaft (36) of the cutting mechanism (3), and a driving device (53) is connected to the main shaft (52); the transmission mechanism (6) includes a driving wheel (61) provided on the main shaft (52) and a driven wheel (62) provided on the transmission shaft (36), and the driving wheel (61) and the driven wheel (62) are connected to each other through a transmission member (63); when working, the cam (35) and the support spring (33) cooperate with each other to realize the reciprocating movement of the cutting knife (34) up and down.

2. The raw rubber cutting device for a rubber mixing production line according to claim 1, wherein: The driving wheel (61) and the driven wheel (62) are both sprocket structures, and the transmission member (63) is a chain.

3. The raw rubber cutting device for a rubber mixing production line according to claim 2, wherein: The driven wheel (62) is a multi-stage wheel set composed of a plurality of sprockets with different numbers of teeth; a guide wheel (64) is provided below the driven wheel (62), and a rear derailleur (65) is connected to the guide wheel (64); the rear derailleur (65) is provided on the support frame (4) and is used to drive the guide wheel (64) to move the transmission member (63) on the driven wheel (62) to another sprocket of the driven wheel (62).

4. The raw rubber cutting device for a rubber mixing production line according to claim 3, wherein: The bracket (1) is provided with an adjustment mechanism (7), and the adjustment mechanism (7) includes a shifter adjuster (71) and a cable (72); one end of the cable (72) is connected to the rear derailleur (65), and the other end is connected to the shifter adjuster (71); a fixing rod (73) is provided between the shifter adjuster (71) and the bracket (1) for mounting and fixing the shifter adjuster (71).

5. The raw rubber cutting device for a rubber mixing production line according to claim 4, characterized in that: A connecting sleeve (8) is provided on the driving wheel (61), and the connecting sleeve (8) is fixedly connected to the driving wheel (61) by screws; the connecting sleeve (8) is key-connected to the main shaft (52).

6. The raw rubber cutting device for a rubber mixing production line according to claim 5, characterized in that: The bottom plate (2) is provided with a knife groove (21) adapted to the knife head of the cutting knife (34).

7. The raw rubber cutting device for a rubber mixing production line according to claim 6, wherein: A limiting nut is provided on the guide column (321) below the fixing plate (31).

8. The raw rubber cutting device for a rubber mixing production line according to any one of claims 1 to 7, characterized in that: A dust cover (9) is provided above the bottom plate (2).

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