A rubber compound mixing and molding device capable of improving the strength of rubber V-belts

Abstract

The present invention relates to the technical field of rubber compound mixing, and specifically to a rubber compound mixing and molding equipment capable of improving the strength of a rubber V-belt, comprising a frame, a driving device, a material tray, a front roller, a rear roller, a side column, an auxiliary roller one and an auxiliary roller two, and also comprising a rubber cutting mechanism. In the present invention, through the roller gap action of the front roller and the rear roller, a rubber mixer converts rubber blocks and compounding agents into sheet-like rubber materials, and feeds one end of the sheet into the roller gap between the auxiliary roller one and the auxiliary roller two to form a rotating state; then, through the rotation of the elliptical structure roller, the film is wound to a sufficient width and squeezes the long and short plywood on both sides, at which time the traction assembly is acted upon by the traction force, and controls the cutter to come out of the groove and cut the two circles of film on the outside of the roller. This process not only realizes the precise cutting of the film, but also ensures that the cut film can smoothly enter the roller gap between the front roller and the rear roller, thereby improving the mixing and molding efficiency of the rubber V-belt.

Description

Technical Field

[0001] The invention relates to the technical field of rubber compound mixing, in particular to a rubber compound mixing and molding device capable of improving the strength of a rubber V-belt. Background Art

[0002] A rubber V-belt is an annular transmission belt with a V-shaped cross section. It is made of rubber and fiber and is mainly used to make transmission parts in mechanical transmission systems. The mixing process of the V-belt mainly includes four steps: roller wrapping, powder feeding, refining and sheeting. That is, the raw rubber and the compounding agent are drawn into the gap between the two rotating rollers of the open mixing mill through friction and adhesion. Under the action of extrusion and shearing, the macromolecular chain of the raw rubber is broken, the plasticity is increased, and the compounding agent is dispersed in it to form a mixed rubber. The thickness of the film is controlled by adjusting the gap between the rollers, and the rubber is gradually coated on the rollers to form a continuous formed film.

[0003] In order to maintain a stable shape and size during the transmission process, the V-belt needs to have good stiffness and viscosity. Compared with other rubbers, less softener will be added during mixing, and the plasticity and fluidity of the rubber will be reduced. The rubber mixer prepares the raw materials according to the V-belt mixing formula, and inserts the raw rubber into the gap between the upper ends of the two rollers below. The raw rubber is softened and covers the rollers through the rotation and friction of the rollers. After the rubber sheet falls, it is sent to the gap between the upper ends of the two rollers above for further extrusion and mixing. The rubber sheet falls and rotates back to the gap between the upper ends of the two rollers below. The rubber sheet is in a continuous and uninterrupted rotation state. Refer to Figure 5 . During the mixing process, a certain amount of accumulated rubber needs to be retained at the upper end of the roller gap between the two rollers at the lower end. The presence of accumulated rubber increases the contact area between the rubber and the rollers, so that the rubber is subjected to strong shearing and extrusion, and the compounding agent can be dispersed in the rubber. However, the fluidity of the V-belt is extremely poor, and the accumulated rubber will gradually form an S-shaped fold at the upper end of the roller gap. Due to the characteristics of the V-belt rubber, it is difficult to fully unfold and flow in the roller gap. There are large gaps in the folded rubber, the contact area between the rubber and the roller is reduced, and the shear force between the front roller and the rear roller is difficult to apply to the rubber surface, which increases the difficulty of mixing, and the rubber will form excessive accumulation at the upper end of the roller gap.

[0004] Rubber mixers can solve the problem of excessive rubber accumulation by using two methods: rolling or tamping. Tamping is to use tools to tamper the excessive rubber accumulation at the upper end of the roller gap, increase the contact area between the rubber and the roller, and feed the rubber into the roller gap; rolling is to prevent excessive accumulation of rubber at the upper end of the roller gap in advance, and cut the rotating rubber sheet at a 75° angle to the horizontal line of the roller to increase the surface area of ​​the rubber sheet. However, it is difficult to control the cutting angle during rolling operation, and the cutting will cause the rubber sheet to break during the rotation process, affecting the continuity of the rubber and increasing the workload of rubber mixers. The roller is one of the key components of the mixing mill. The flatness and smoothness of its surface have an important influence on the mixing effect. Compared with the mixing of other rubber materials, due to the characteristics of V-belt rubber materials, rubber mixers need to frequently tamper the rubber at the roller gap position, and the tampering force is relatively large. After mixing a large number of V-belts, the roller surface will be damaged, which will affect the mixing quality of the rubber material and the normal operation of the equipment. For the V-belt refining operation, both the rolling and tamping methods will reduce the mixing effect, affect the dispersion of the compounding agent in the raw rubber, and reduce the strength of the rubber V-belt.

[0005] Therefore, a rubber compound mixing and molding device capable of improving the strength of a rubber V-belt is proposed. Summary of the invention

[0006] The object of the present invention is to provide a rubber compound mixing and molding device capable of improving the strength of a rubber V-belt. In order to solve the problem that a roller is difficult to operate during the mixing process of the V-belt, which easily causes the rotating rubber sheet to break, and the rubber tamping operation easily causes the roller surface to be damaged, both of which operations will affect the dispersion of the compounding agent in the raw rubber and reduce the strength of the rubber V-belt, the rubber sheet is rotated, cut, and the cut rubber block is sent into the roller gap for mixing, so that the continuous mixing and molding of the rubber V-belt without human participation is realized.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A rubber compound mixing and molding device capable of improving the strength of a rubber V-belt, comprising a frame, a driving device, a material tray, a front roller, a rear roller, a side column, an auxiliary roller one and an auxiliary roller two, and also comprising a rubber cutting mechanism, wherein the end faces of both sides of the side column are provided with connecting side blocks, the rubber cutting mechanism comprises a long plywood, a short plywood, a winding roller, a connecting block, a spring hinge, a connecting shaft and a traction assembly, the long plywood and the short plywood are arranged between the two side columns, the winding roller is located between the long plywood and the short plywood, the connecting block is arranged on both sides of the top ends of the long plywood and the short plywood, the side end faces of the long plywood and the short plywood are connected to the connecting side blocks through the connecting block, the connecting shaft is arranged in the center of the connecting block, the connecting shaft is fixedly connected to the long plywood, the spring hinge is arranged between the connecting block and the connecting shaft, one end of the winding roller is connected to the output end of the driving motor of the side column, and the traction assembly is arranged at the other end of the winding roller;

[0009] The end of the rotating film is wound on the surface of the roller, and the long and short plates on the left and right sides are squeezed by the roller with two layers of film. The squeezed long plates and roller pull the traction components to both sides respectively, and the traction components drive the knife body inside the roller to cut the two outer circles of film, and the film with the cut surface enters the roller gap.

[0010] It can be seen from the above scheme that the existing technology uses manual or simple mechanical devices to cut the film, which is inefficient and has limited cutting accuracy. However, the present technical solution uses an integrated rubber cutting mechanism, the cooperation of the winding roller and the long and short clamping plates, and the traction component to drive the knife body to automatically cut the film, thereby improving the cutting efficiency and accuracy, and at the same time allowing the film with the cutting surface to smoothly enter the roller gap, thereby enhancing the strength and production quality of the rubber V-belt.

[0011] Preferably, an eccentric guide rod is provided at the upper end of the winding roller, and the eccentric guide rod is biased towards the position of the long clamping plate.

[0012] It can be seen from the above scheme that in the prior art, the position adjustment between the short clamping plate and the winding roller depends on a simple mechanical adjustment device or manual operation, which is not accurate enough and the adjustment process is cumbersome. However, the present technical solution achieves more accurate and flexible position fine-tuning by setting an eccentric guide rod between the short clamping plate and the winding roller and making it biased toward the position of the connecting block.

[0013] Preferably, a shaft rod is movably provided at the center of one end of the roller, one end of the shaft rod is movably connected to the center of the roller, the other end of the shaft rod passes through the traction assembly and is connected to the side surface of a side column, knife grooves are provided on both sides of the roller, rectangular grooves are provided on the inner side of the knife grooves, the knife grooves are limitedly connected to the tool via the rectangular grooves, the tool only has the freedom of lateral movement on the inner side of the knife groove, a tool is installed on the inner side of the knife groove, and a traction block is installed on the side end face of the tool.

[0014] It can be seen from the above scheme that in the prior art, for the connection between the roller and the cutter and the movement control of the cutter, a relatively simple fixed connection or manual adjustment method is adopted, which easily leads to inconvenience in adjusting the position of the cutter, and limits the cutting accuracy and efficiency. However, the present technical scheme connects the roller and the side column through a movable shaft rod, and at the same time, a cutter groove and a rectangular groove are opened at the vertices of the long axis at both ends of the roller, so as to realize the limited connection of the cutter and the freedom of only lateral movement. This design makes the replacement and adjustment of the cutter more convenient, and improves the cutting accuracy and efficiency.

[0015] Preferably, the traction assembly includes an L-shaped bar, a roller, a rolling groove, a transverse pull rod, a connecting hook block and an annular tooth surface, wherein two L-shaped bars are provided, and the two L-shaped bars in opposite positions form a rectangular frame, and the L-shaped bar is limitedly connected to the inner side surface of the side column, the roller is located on the inner side of the rectangular frame, and there is a certain gap between the roller and the L-shaped bar, the rolling groove is opened in the center of the roller, the rolling groove is socketed with an axle rod, the transverse pull rod is installed in the center of the side surface of the L-shaped bar, the connecting hook block is provided at one end of the L-shaped bar, one of the L-shaped bars is limitedly connected to the inner surface of the other L-shaped bar through the connecting hook block, and the circumferential surface of the roller is provided with an annular tooth surface.

[0016] It can be seen from the above scheme that in the prior art, direct mechanical connection or simple sliding structure is used, which may be difficult to ensure stability and accuracy under complex and fine cutting requirements. However, the traction assembly in this technical solution is exquisitely designed, with a rectangular frame formed by an L-shaped bar and a side column limit connection, and the roller is connected to the shaft rod in the frame through a rolling groove, achieving stable and flexible traction.

[0017] Preferably, a traction block 2 is provided on the side surface of one end of the transverse pull rod, and a limiting sliding groove is provided on one side end surface of the long clamping plate and the short clamping plate, and the limiting sliding groove is connected to the traction block 2.

[0018] It can be seen from the above scheme that in the prior art, a relatively direct fixing method or a simple sliding structure is used for the connection and limit between the traction assembly and the long and short splints, which is lacking in adjustment flexibility and stability. However, the present technical scheme realizes a stable and flexible connection method by setting a traction block 2 at one end of the transverse pull rod and connecting it with the limit slide grooves on the long and short splints. This design allows the long and short splints to be fine-tuned as needed during the cutting process to adapt to films of different specifications and thicknesses, while ensuring the accuracy and stability of the cutting.

[0019] Preferably, a straight tooth surface is provided on the inner side of the L-shaped bar, and the straight tooth surface is staggered with the position of the engaging hook block.

[0020] It can be seen from the above scheme that in the prior art, the structural design and matching method between the L-shaped bar and the connecting hook block are relatively simple and direct, lacking a specific matching surface or structure to enhance the stability and precision of the connection. However, the present technical solution achieves a more sophisticated and stable connection method by arranging a straight tooth surface on the inner side of the L-shaped bar and staggering the position of the connecting hook block. This design not only increases the contact area and friction force of the connection, and improves the firmness of the connection, but also avoids stress concentration and potential loosening problems through the staggered arrangement of the straight tooth surface and the connecting hook block.

[0021] Preferably, two arc grooves are formed on the inner surface of the rolling disc, the two arc grooves are located on both sides of the rolling groove, and the arc grooves are connected to one of the traction blocks.

[0022] It can be seen from the above scheme that in the prior art, a simple sliding or fixed connection is used for the cooperation between the roller and the traction block 1, which lacks the necessary guidance and stability, affecting the smoothness and accuracy of the cutting process. However, the present technical solution provides a more stable and precise guiding mechanism by opening two arc grooves on the inner surface of the roller and connecting with the traction block 1. This design allows the traction block 1 to slide in the arc groove, which not only ensures the stability during the cutting process, but also allows a certain degree of flexibility to adapt to different cutting requirements. At the same time, the design of the arc groove can also effectively disperse the stress during the cutting process, reduce wear, and extend the service life of the equipment.

[0023] Preferably, the roller is of an elliptical structure, and the knife grooves are provided at the vertices of the long axis at both ends of the roller.

[0024] It can be seen from the above scheme that: in the prior art, the roller usually adopts a circular structure. In the present technical scheme, the roller is designed as an elliptical structure, and this innovation brings significant advantages. During the rotation of the roller with an elliptical structure, the linear speed of its surface will change periodically. This change helps to improve the cutting effect of the film and make the cutting surface more uniform and smooth. In addition, the elliptical structure may also produce a certain extrusion and stretching effect on the film, which helps to improve the strength and durability of the film. Compared with circular rollers, rollers with elliptical structures show higher flexibility and adaptability when cutting films with complex shapes or requiring special cutting effects.

[0025] Preferably, the long clamping plate and the short clamping plate have the same inclination angle and opposite inclination directions.

[0026] It can be seen from the above scheme that in the prior art, the long clamping plate and the short clamping plate are parallel or simply tilted, lacking a specific tilting angle and direction. In the present technical scheme, the tilting angles of the long clamping plate and the short clamping plate are designed to be consistent, but the tilting directions are opposite. This design not only allows the long clamping plate and the short clamping plate to disperse the pressure more evenly when squeezed by the roller, but also provides more stable and uniform support and guidance for the film during the cutting process.

[0027] Preferably, the length of the long clamping plate is greater than that of the short clamping plate, and a guide strip is provided on the inner side surface of the bottom end of the long clamping plate.

[0028] It can be seen from the above scheme that in the prior art, the design of the long clamping plate and the short clamping plate is relatively simple, with the same length or little difference, and lacks a specific guide structure. However, the technical solution makes the long clamping plate longer than the short clamping plate, and sets a guide strip on the inner surface of the bottom end of the long clamping plate. This design enables the long clamping plate to more effectively guide and fix the film during the cutting process, prevent the film from shifting or sliding, and thus improve the cutting accuracy and stability.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. A rubber compound mixing and molding equipment capable of improving the strength of a rubber V-belt. When two layers of rubber are rolled on a roll and reach a sufficient width, the long and short plywood on both sides will be automatically squeezed, thereby triggering the action of the cutting mechanism. The cutter moves outward along the knife groove to cut the film, ensuring continuous and efficient cutting of the film. At the same time, the cut rubber block has a sufficient thickness. The cut ends of the two layers of rubber smoothly enter the roller gap between the front roller and the rear roller. The accumulated rubber is presented in the form of a rubber block. The contact area between the rubber and the roller is large, and the rubber will be subjected to uniform and sufficient shear force, thereby improving the mixing quality and efficiency. The compounding agent is evenly dispersed in the raw rubber, thereby improving the strength of the rubber V-belt.

[0031] 2. A rubber compound mixing and molding equipment that can improve the strength of rubber V-belts. The entire process of film winding, cutting and falling does not require manual operation by rubber mixers, saving labor costs. The automatic operation of the equipment and the design of the mechanical structure realize the automatic rotation, cutting and falling of the film. The rubber mixer only needs to feed the raw rubber and compounding agent into the roller gap, and the equipment can automatically complete the subsequent mixing and cutting process, reducing manual intervention and labor intensity.

[0032] 3. A rubber compound mixing and molding equipment that can improve the strength of rubber V-belts. The long and short plywood have the same inclination angle but opposite directions, which ensures that the groove distance and cutting force of the cutters on both sides are consistent; the meshing design of the L-shaped bar and the roller, as well as the connection between the arc groove and the traction block, enhance the transmission stability and cutting accuracy of the equipment; the elliptical structure design of the roller ensures that the cutter will not groove until the cutting conditions are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the rubber cutting mechanism of the present invention;

[0035] Figure 3 It is a structural schematic diagram of the traction assembly of the present invention in a disassembled state;

[0036] Figure 4 It is a schematic diagram of the independent structure of the traction assembly of the present invention;

[0037] Figure 5 This is a schematic diagram of the state in which films of the present invention are directly stacked;

[0038] Figure 6 It is a schematic diagram of the state before the film cutting of the present invention;

[0039] Figure 7 It is a schematic diagram of the state of the film after cutting of the present invention;

[0040] Figure 8 It is a schematic diagram of the film of the present invention being wound half a circle.

[0041] In the figure: 1. frame; 2. driving device; 3. material tray; 4. front roller; 5. rear roller; 6. side column; 61. connecting side block; 7. rubber cutting mechanism; 71. long splint; 72. short splint; 721. limiting slide; 73. winding roller; 731. knife; 732. knife groove; 733. shaft rod one; 734. traction block one; 74. connecting block; 75. spring hinge; 76. connecting shaft; 77. traction assembly; 771. straight tooth surface; 772. L-shaped bar; 773. roller; 774. rolling groove; 775. transverse pull rod; 776. connecting hook block; 777. arc groove; 778. annular tooth surface; 779. traction block two; 78. guide bar; 79. eccentric guide rod; 8. auxiliary roller one; 9. auxiliary roller two. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 8 The present invention provides a rubber compound mixing and molding device capable of improving the strength of a rubber V-belt, and the technical scheme is as follows:

[0044] A rubber compound mixing and molding device capable of improving the strength of a rubber V-belt, comprising a frame 1, a driving device 2, a material tray 3, a front roller 4, a rear roller 5, a side column 6, an auxiliary roller 1 8 and an auxiliary roller 2 9, and also comprising a rubber cutting mechanism 7, both side end surfaces of the side column 6 are provided with connecting side blocks 61, the rubber cutting mechanism 7 comprises a long splint 71, a short splint 72, a winding roller 73, a connecting block 74, a spring hinge 75, a connecting shaft 76 and a traction assembly 77, the long splint 71 and the short splint 72 are arranged between the two side columns 6, and the winding roller 73 is located between the two side columns 6. Between the long splint 71 and the short splint 72, the connecting block 74 is arranged on both sides of the top of the long splint 71 and the short splint 72, and the side end surfaces of the long splint 71 and the short splint 72 are connected to the connecting side block 61 through the connecting block 74. The connecting shaft 76 is installed in the center of the connecting block 74, and the connecting shaft 76 is fixedly connected to the long splint 71. The spring hinge 75 is arranged between the connecting block 74 and the connecting shaft 76. One end of the roller 73 is connected to the output end of the driving motor of the side column 6, and the traction component 77 is installed at the other end of the roller 73;

[0045] The end of the rotating film is wound on the surface of the winding roller 73, and the long clamping plate 71 and the short clamping plate 72 on the left and right sides are squeezed by the winding roller 73 with two layers of film. The squeezed long clamping plate 71 and the winding roller 73 pull the traction assembly 77 to both sides respectively, and the traction assembly 77 drives the knife body inside the winding roller 73 to cut the outer two circles of film, and the film with the cut surface enters the roller gap.

[0046] In this embodiment, according to the mixing formula of the V-belt, the required raw rubber, compounding agents such as zinc oxide, carbon black, oil, etc. and other additives are prepared, and the rubber mixer plugs the raw rubber between the roller gap at the upper ends of the front roller 4 and the rear roller 5. The raw rubber is gradually softened and coated on the roller surface through the relative rotation and friction of the rollers. The rubber falls from the rollers to form a sheet, and one end of the rubber sheet is sent into the roller gap between the upper ends of the auxiliary roller 8 and the auxiliary roller 29. The roller gap between the auxiliary roller 18 and the auxiliary roller 29 is smaller than the roller gap between the front roller 4 and the rear roller 5. The rubber sheet is further extruded and mixed through the relative rotation of the auxiliary roller 18 and the auxiliary roller 29, and the rubber sheet falls with the end of the rubber sheet facing the roller gap between the front roller 4 and the rear roller 5, thereby forming a rotating state of the rubber sheet.

[0047] As an embodiment of the present invention, refer to Figure 6 — Figure 8 An eccentric guide rod 79 is provided at the upper end of the winding roller 73 , and the eccentric guide rod 79 is biased toward the position of the long clamping plate 71 .

[0048] In this embodiment, if there is no eccentric guide rod 79, when the winding roller 73 cuts the film on the outer circle, the end of the rotating film is easily separated from the winding roller 73, and it is difficult for the winding roller 73 to wind the film again. The eccentric guide rod 79 is used to pull the film. One end of the winding roller 73 is driven by a motor and always rotates clockwise. The rotation path of the winding roller 73 will pass between the eccentric guide rod 79 and the winding roller 73, increasing the contact path between the film and the winding roller 73 in the rotating state, which is beneficial to the wrapping of the roller.

[0049] As an embodiment of the present invention, refer to Figure 3 A shaft rod 733 is movably provided at the center of one end of the roller 73, one end of the shaft rod 733 is movably connected to the center of the roller 73, and the other end of the shaft rod 733 passes through the traction assembly 77 and is connected to the side surface of a side column 6. Knife grooves 732 are provided on both sides of the roller 73, and a rectangular groove is provided on the inner side of the knife groove 732. The knife groove 732 is limitedly connected to the tool 731 through the rectangular groove, and the tool 731 only has the freedom of lateral movement on the inner side of the knife groove 732. The tool 731 is installed on the inner side of the knife groove 732, and a traction block 734 is installed on the side end surface of the tool 731.

[0050] In this embodiment, the traction block 734 is pulled by the traction assembly 77, and the tool 731 moves outward along the tool groove 732 to cut the two layers of film on the surface of the roller 73. When the long and short plates 71 and 72 are not squeezed, there is a certain gap between the long and short plates 71 and 72 and the roller 73.

[0051] As an embodiment of the present invention, refer to Figure 3 and Figure 4 The traction assembly 77 includes an L-shaped bar 772, a roller 773, a rolling groove 774, a transverse pull rod 775, a connecting hook block 776 and an annular tooth surface 778. Two L-shaped bars 772 are provided. The two L-shaped bars 772 in opposite positions are rectangular frames, and the L-shaped bars 772 are limitedly connected to the inner side surface of the side column 6. The roller 773 is located on the inner side of the rectangular frame. There is a certain gap between the roller 773 and the L-shaped bar 772. The rolling groove 774 is opened in the center of the roller 773. The rolling groove 774 is sleeved with the shaft rod 733. The transverse pull rod 775 is installed in the center of the side surface of the L-shaped bar 772. The connecting hook block 776 is set at one end of the L-shaped bar 772. One L-shaped bar 772 is limitedly connected to the inner surface of the other L-shaped bar 772 through the connecting hook block 776. The circumferential surface of the roller 773 is provided with an annular tooth surface 778.

[0052] In this embodiment, one end of the roller 73 is driven by a motor, and the roller 73 rotates at an appropriate speed. The other end of the roller 73 rotates around the shaft 733 as the axis. The internal tool 731 is pulled by the traction assembly 77. When the long splint 71 and the short splint 72 are not squeezed, the roller 773 and the L-shaped bar 772 are independent of each other, and the roller 773 rotates with the roller 73 around the shaft 733 as the axis.

[0053] As an embodiment of the present invention, refer to Figure 2 and Figure 4 A traction block 779 is disposed on the side surface of one end of the transverse pull rod 775, and a limiting slide groove 721 is provided on one side end surface of the long clamp plate 71 and the short clamp plate 72, and the limiting slide groove 721 is connected to the traction block 779.

[0054] In this embodiment, whenever the long splint 71 and the short splint 72 are squeezed and swing to both sides, the connection between the traction block 2 779 and the limiting slide groove 721 is utilized, and the limiting slide groove 721 has a sufficient length to facilitate the traction block 2 779 to slide on the inner side of the limiting slide groove 721. The two transverse pull rods 775 are subjected to pulling forces in two directions, and the rectangular frame formed by the two L-shaped bars 772 is stretched laterally.

[0055] As an embodiment of the present invention, refer to Figure 4 A straight tooth surface 771 is provided on the inner side of the L-shaped bar 772 , and the straight tooth surface 771 is staggered with the connection hook block 776 .

[0056] In this embodiment, the rectangular frame formed by the two L-shaped bars 772 is stretched laterally, and the straight tooth surface 771 is displaced to the corresponding position of the annular tooth surface 778. The roller 773 rotates independently by utilizing the meshing connection between the straight tooth surface 771 and the annular tooth surface 778.

[0057] As an embodiment of the present invention, refer to Figure 3 and Figure 4 The inner surface of the roller 773 is provided with two arc grooves 777 , and the two arc grooves 777 are located on both sides of the rolling groove 774 , and the arc grooves 777 are connected to the traction block 734 .

[0058] In this embodiment, when the roller 773 rotates, the traction tool 731 moves outward along the knife groove 732 by utilizing the connection between the arc groove 777 and the traction block 734, and the blade of the traction block 734 gradually cuts the two outer layers of film to complete the cutting of the film.

[0059] As an embodiment of the present invention, refer to Figure 6 — Figure 8 The roller 73 is an elliptical structure, and the knife grooves 732 are opened at the long axis vertices of both ends of the roller 73.

[0060] In this embodiment, only when the long axis of the roller 73 is in a horizontal state, the roller 73 with two layers of film rolled up will reach the width of squeezing the long clamping plates 71 and the short clamping plates 72 on both sides, and the long clamping plates 71 and the short clamping plates 72 will swing at a certain angle in two directions respectively, and the cutters 731 on both sides will cut to both sides along the horizontal line.

[0061] As an embodiment of the present invention, refer to Figure 2 and Figure 3 The long clamping plate 71 and the short clamping plate 72 have the same inclination angle and opposite inclination directions.

[0062] In this embodiment, the roller 73 with two layers of film rolls has the same extrusion thickness for the long clamping plate 71 and the short clamping plate 72, controls the swing angles of the long clamping plate 71 and the short clamping plate 72 to be consistent, and the swing directions are opposite, the displacement distances of the two L-shaped bars 772 are consistent, the rotation of the control roller 773 is stable, the groove exit distances of the two cutters 731 are consistent, and the cutting force is consistent, the spring hinge 75 is used to make the long clamping plate 71 and the short clamping plate 72 have a certain swing amplitude, and the long clamping plate 71 and the short clamping plate 72 return to their original positions at a slow speed, so that the cut rubber block has a drop gap;

[0063] When the film is wound up and cut by the winding roller 73, it is inevitable that some rubber strips will remain on the inner side of the film after cutting, which increases the film thickness of the winding roller 73. Even if the long splint 71 and the short splint 72 are subjected to forces of different magnitudes, and the upper and lower positions of the roller 773 are provided with straight tooth surfaces 771, whenever one straight tooth surface 771 meshes with the roller 773 and the roller 773 rotates, the other straight tooth surface 771 will inevitably mesh with the roller 773, and then when the long splint 71 and the short splint 72 are subjected to the squeezing force, the swing amplitudes of the two are consistent.

[0064] As an embodiment of the present invention, refer to Figure 6 — Figure 8 The length of the long clamping plate 71 is greater than that of the short clamping plate 72 , and a guide strip 78 is provided on the inner side surface of the bottom end of the long clamping plate 71 .

[0065] In this embodiment, after the cutter 731 cuts two circles of film, the two pieces of film on the lower side move downward due to their own gravity. Since the length of the long clamp plate 71 is greater than that of the short clamp plate 72, the end of the long clamp plate 71 and the guide strip 78 temporarily intercept one end of the two pieces of film, and the other side end moves in advance toward the roller gap between the front roller 4 and the rear roller 5 until the entire piece of film enters.

[0066] Working principle: The rubber mixer sends the rubber block and compounding agent to the upper end of the roller gap between the front roller 4 and the rear roller 5. Through the action force between the front roller 4 and the rear roller 5, the rubber falls in the form of a sheet, and one end of the film is sent into the roller gap between the auxiliary roller 1 8 and the auxiliary roller 2 9. The upper and lower roller gaps correspond to each other, forming a rotating state of the film. The end of the film is wound on the surface of the winding roller 73. The winding roller 73 is an elliptical structure. When its long axis is horizontal, the winding roller 73 with two layers of film reaches a sufficient width, squeezing the long plywood 71 and the short plywood 72 on both sides. After the traction force is applied, the traction component 77 controls the tool 731 to exit the groove, cutting the two layers of film on the outside of the winding roller 73. The cut film enters the roller gap between the front roller 4 and the rear roller 5.

[0067] Specifically, the rubber cutting mechanism 7 is used to cut and drop the film before it is piled up at the roller gap between the front roller 4 and the rear roller 5, so as to avoid the S-shaped folded rubber pile state with large gaps, increase the contact area between the rubber and the rollers, and keep the rubber piled up at a normal amount. First, the end of the film is wound by the winding roller 73. When two layers of film are wound on the outside of the winding roller 73, the thickness of the two layers of film exceeds the gap between the winding roller 73 and the long plywood 71 and the short plywood 72. The long plywood 71 and the short plywood 72 are squeezed in two directions respectively, and the cutting tool 731 is pulled out of the groove to complete the cutting of the film. The two rubber blocks on the lower end surface of the winding roller 73 fall to the roller gap between the front roller 4 and the rear roller 5. Figure 6 Then the roller 73 continues to rotate half a circle, the long plywood 71 and the short plywood 72 are squeezed in two directions again, the outer two layers of film are cut, and the rubber block falls, referring to Figure 7 The reel 73 is continuously wound, and whenever the film on the outside of the reel 73 has a thickness of two layers, the cutting condition is triggered, and continuous cutting is achieved without the intervention of the rubber mixer.

[0068] The specific steps are as follows:

[0069] Formation of the film rotation state: According to the mixing formula of the V-belt, the required raw rubber, compounding agents such as zinc oxide, carbon black, oil and other additives are prepared. The rubber refiner plugs the raw rubber between the roller gaps at the upper ends of the front roller 4 and the rear roller 5. The raw rubber is gradually softened and coated on the roller surface through the relative rotation and friction between the front roller 4 and the rear roller 5. The rubber falls from the roller to form a sheet, so that the raw rubber is softened and preliminarily mixed with the compounding agents to form a sheet of film. One end of the film is sent into the roller gap between the upper ends of the auxiliary roller 8 and the auxiliary roller 29. The roller gap between the auxiliary roller 18 and the auxiliary roller 29 is smaller than the roller gap between the front roller 4 and the rear roller 5. The film is further extruded and mixed through the relative rotation of the auxiliary roller 18 and the auxiliary roller 29. The film falls, and the end of the film faces the roller gap between the front roller 4 and the rear roller 5, thereby forming the film rotation state;

[0070] Cutting of the lower film: When the roll 73 with two layers of film reaches the width of the long clamping plate 71 and the short clamping plate 72 on both sides, refer to Figure 6 , the long clamping plate 71 and the short clamping plate 72 are swung at a certain angle in two directions respectively. Due to the connection between the traction block 2 779 and the limiting slide groove 721, the two transverse pull rods 775 are subjected to tension in two directions, and the rectangular frame formed by the two L-shaped bars 772 is stretched laterally, and the straight tooth surface 771 is displaced to the corresponding position of the annular tooth surface 778 and meshed, and the roller 773 rotates independently. By utilizing the connection between the arc groove 777 and the traction block 1 734, the traction tool 731 moves outward along the knife groove 732, and the blade of the tool 731 gradually cuts the two layers of film on the outside, cutting the two layers of film on the roll 73. The two superimposed rubber blocks cut off have sufficient thickness, which increases the surface area of ​​the rubber blocks, and the rubber blocks can be subjected to sufficient extrusion and shearing forces in the roller gap;

[0071] Falling of rubber blocks: The two rubber blocks after cutting fall due to their own gravity, and the inner side surface of the end of the long clamping plate 71 and the guide strip 78 temporarily intercept one end of the two rubber pieces, and the other end moves in advance toward the roller gap between the front roller 4 and the rear roller 5, until the whole rubber piece enters the roller gap in an orderly manner for further mixing;

[0072] Cutting of the upper film: As the two rubber blocks on the lower side of the roller 73 fall, the roller 73 continues to rotate 90 degrees, and the roller 73 can reach the width of the long clamping plate 71 and the short clamping plate 72 on both sides again. Figure 7 , the rubber block on the upper side of the winding roller 73 is transferred to the lower end of the winding roller 73, reaches the cutting condition, and smoothly falls into the roller gap between the front roller 4 and the rear roller 5, realizing the continuous cutting of the rubber sheet and improving the mixing efficiency;

[0073] Repeat the operation: After the above steps are completed, the film is guided by the eccentric guide rod 79 to increase the wrapping area between the end of the film and the winding roller 73, and the winding action is continued to cut the film into sections. The mixing process does not require the participation of rubber mixers;

[0074] Sheet forming: During the rotation of the film, the compounding agent is sent to the roller gap between the front roller 4 and the rear roller 5 according to the mixing process. When the raw rubber and the compounding agent are evenly mixed, the rotating film is cut and reeled up, and the operation is completed.

[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber compound mixing and molding device capable of improving the strength of a rubber V-belt, comprising a frame (1), a front roller (4), a rear roller (5), a side column (6), an auxiliary roller 1 (8) and an auxiliary roller 2 (9), characterized in that: It also includes a rubber cutting mechanism (7), wherein the end surfaces of both sides of the side column (6) are installed with connecting side blocks (61), and the rubber cutting mechanism (7) includes a long clamping plate (71), a short clamping plate (72), a roller (73), a connecting block (74), a spring hinge (75), a connecting shaft (76) and a traction assembly (77), wherein the long clamping plate (71) and the short clamping plate (72) are arranged between the two side columns (6), the roller (73) is located between the long clamping plate (71) and the short clamping plate (72), a cutter (731) is arranged on the inner side of the roller (73), the connecting block (74) is arranged on both sides of the top of the long clamping plate (71) and the short clamping plate (72), the connecting shaft (76) is installed in the center of the connecting block (74), the spring hinge (75) is arranged between the connecting block (74) and the connecting shaft (76), and the traction assembly (77) is installed at one end of the roller (73); A shaft rod (733) is movably provided at the center of one end of the winding roller (73); one end of the shaft rod (733) is movably connected to the center of the winding roller (73); the other end of the shaft rod (733) passes through a traction assembly (77) and is connected to a side surface of a side column (6); knife grooves (732) are provided on both sides of the winding roller (73); a knife (731) is installed on the inner side of the knife groove (732); and a traction block (734) is installed on the side end surface of the knife (731); The traction assembly (77) comprises an L-shaped bar (772), a roller (773), a rolling groove (774), a transverse pull rod (775), a connecting hook block (776) and an annular tooth surface (778). Two L-shaped bars (772) are provided. The two L-shaped bars (772) located opposite to each other form a rectangular frame. The roller (773) is located on the inner side of the rectangular frame. The roller (773) and the L-shaped bar (772) are clearance-matched. The rolling groove (774) is provided at The rolling groove (774) is sleeved with the shaft rod (733) at the center of the rolling plate (773), the transverse pull rod (775) is installed at the center of the side surface of the L-shaped bar (772), the connecting hook block (776) is arranged at one end of the L-shaped bar (772), one L-shaped bar (772) is limitedly connected to the inner surface of another L-shaped bar (772) through the connecting hook block (776), and the circumferential surface of the rolling plate (773) is provided with an annular tooth surface (778); The end of the rotating film is wound on the surface of the winding roller (73), and the long clamping plates (71) and the short clamping plates (72) on the left and right sides are squeezed by the winding roller (73) with two layers of film. The squeezed long clamping plates (71) and the winding roller (73) pull the traction components (77) to the two sides respectively. The traction components (77) drive the cutter (731) inside the winding roller (73) to cut the outer two circles of film, and the film with the cut surface enters the roller gap between the front roller (4) and the rear roller (5).

2. The rubber compound mixing and molding equipment for improving the strength of a rubber V-belt according to claim 1, characterized in that: An eccentric guide rod (79) is provided at the upper end of the winding roller (73), and the eccentric guide rod (79) is biased towards the position of the long clamping plate (71).

3. The rubber compound mixing and molding equipment for improving the strength of a rubber V-belt according to claim 1, characterized in that: A second traction block (779) is provided on the side surface of one end of the transverse pull rod (775), and a limiting slide groove (721) is provided on one side end surface of the long clamping plate (71) and the short clamping plate (72), and the limiting slide groove (721) and the second traction block (779) are connected to each other.

4. The rubber compound mixing and molding equipment for improving the strength of a rubber V-belt according to claim 3, characterized in that: A straight tooth surface (771) is provided on the inner side of the L-shaped bar (772), and the straight tooth surface (771) and the connecting hook block (776) are staggered in position.

5. The rubber compound mixing and molding equipment for improving the strength of a rubber V-belt according to claim 4, characterized in that: The inner surface of the rolling plate (773) is provided with two arc-shaped grooves (777), the two arc-shaped grooves (777) are located on both sides of the rolling groove (774), and the arc-shaped grooves (777) are connected to the first traction block (734).

6. The rubber compound mixing and molding equipment for improving the strength of a rubber V-belt according to claim 1, characterized in that: The roller (73) is an elliptical structure, and the knife grooves (732) are provided at the vertices of the long axis at both ends of the roller (73).

7. The rubber compound mixing and molding equipment capable of improving the strength of a rubber V-belt according to claim 1, characterized in that: The long clamping plate (71) and the short clamping plate (72) have the same inclination angle and opposite inclination directions.

8. The rubber compound mixing and molding equipment capable of improving the strength of a rubber V-belt according to claim 1, characterized in that: The length of the long clamping plate (71) is greater than that of the short clamping plate (72), and a guide strip (78) is provided on the inner side surface of the bottom end of the long clamping plate (71).

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