A rubber mixing device for rubber dumbbell plates and a method of using the same

Abstract

The invention discloses a mixing device for a rubber dumbbell piece and a use method thereof, and relates to the technical field of dumbbell piece production devices. A turnover motor is arranged on a base, and the output end of the turnover motor is connected to a mixing tank through a gear set, a mixing roller is arranged in the mixing tank, and a driving motor is arranged at one end of the mixing roller, a stirring member is arranged at one end of the spraying roller, and a spraying member is arranged at the other end, and the spraying member and the stirring member are symmetrically installed; spraying holes are arranged on both sides of the spraying member, and a slide groove is arranged on one side of the spraying hole, sealing blocks are arranged on both sides of the spraying member, and the sealing blocks are installed through the slide groove, a control mechanism drives a control rod to move back and forth, and the control rod drives the sealing block to move back and forth in the slide groove, so as to control the opening and closing of the spraying hole. The device solves the problem that when mixing rubber dumbbell pieces, additives are added from the outside to the inside, and the additives are directly sprinkled on the rubber surface, resulting in uneven mixing between rubber raw materials and additives, which affects the performance of rubber products.

Description

Technical Field

[0001] The invention relates to the technical field of rubber powder screening, and more particularly to a rubber mixing device for rubber dumbbell plates and a use method thereof. Background Art

[0002] Rubber dumbbell plates are a type of sports equipment used for strength training. Their main material is cast iron. Some dumbbells are covered with a layer of rubber. Dumbbells can train a single muscle. If the weight is increased, the coordination of multiple muscles is required. It can also be used as a muscle training. The remaining part of the dumbbell plates is made of rubber, which can prevent the dumbbell plates from accidentally slipping and causing excessive harm to the human body. During the processing of rubber dumbbell plates, additives need to be added to the rubber raw materials to improve the processing properties, physical properties and chemical properties of the rubber, thereby ensuring that the final production of rubber dumbbell plates with stable performance and excellent quality.

[0003] In the prior art, most rubber raw materials and additives are mixed using an internal mixer. First, according to production requirements and rubber formulas, the required rubber raw materials, additives, colorants, etc. are prepared. Secondly, the rubber raw materials are placed in a mixing chamber of the internal mixer. When the internal mixer is started, the rollers in the mixing chamber begin to rotate and heat, thereby softening the rubber raw materials and making it easier to mix with additives and other raw materials. The raw materials are stirred and pushed by rotating the rollers to promote the mixing between the rubber raw materials and the additives. During the mixing process, according to the requirements of the formula, vulcanizers, processing aids, etc. need to be added in the mixing chamber in sequence. When adding additives, the prior art manually adds additives to the mixing chamber from the outside. It is difficult to ensure that the additives are evenly dispersed in the entire rubber mixture. The additives sprinkled on the rubber surface will cause local concentration changes due to the way of scattering, thereby affecting the performance and consistency of the product. In order to ensure the uniformity of the mixing of the rubber dumbbell pieces, the staff extends the stirring time of the rubber raw materials and additives, but extending the stirring time will cause excessive processing of the rubber, thereby reducing the performance of the rubber.

[0004] In view of the above situation, the present invention designs a rubber mixing device for rubber dumbbell plates and a use method thereof, which solves the above technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a mixing device for rubber dumbbell plates and a method of using the same, which solves the problem that when mixing rubber dumbbell plates, additives are added from the outside to the inside and the additives are directly sprinkled on the rubber surface, resulting in uneven mixing between the rubber raw materials and the additives, thereby affecting the performance of the rubber product.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A rubber mixing device for a rubber dumbbell and a method of using the same are used to mix different raw materials with different types of rubber materials, and include a base, a flip motor, a pressurizing device and a rubber mixing tank. The base is provided with a flip motor, and the output end of the flip motor is connected to the rubber mixing tank through a gear set. A pressurizing device is provided above the rubber mixing tank, and the rubber mixing tank increases the pressure inside the rubber mixing tank through the pressurizing device to promote the mixing of the rubber material and the raw material. A rubber mixing roller is provided in the rubber mixing tank, and a driving motor is provided at one end of the rubber mixing roller. A material spraying assembly is provided in the rubber mixing tank, and the material spraying assembly includes a material spraying roller, a material spraying member, a sealing block, a control rod, a material guide pipe and a control mechanism. The material spraying roller and the rubber mixing roller are symmetrically arranged in the rubber mixing tank, and a driving motor is provided at one end of the material spraying roller and the rubber mixing roller. A stirring piece is arranged on the circumferential surface of the mixing roller, and the stirring pieces are arranged symmetrically; a stirring piece is arranged at one end of the spraying roller, and a spraying piece is arranged at the other end, and the spraying piece and the stirring piece are installed symmetrically; the interior of the spraying piece is a hollow structure, and a material guide pipe is connected to one side of the spraying piece, spraying holes are opened on both sides of the spraying piece, and a slide groove is opened on one side of the spraying hole, sealing blocks are arranged on both sides of the spraying piece, the sealing blocks are installed through the slide groove, a control rod is installed under the sealing block, and a control mechanism is arranged under the control rod; a driving motor is connected to one side of the spraying roller, and a control mechanism is arranged inside the spraying roller, the control mechanism rotates coaxially with the spraying roller, the control mechanism drives the control rod to move back and forth, and the control rod drives the sealing block to move back and forth in the slide groove, thereby controlling the opening and closing of the spraying hole.

[0008] Preferably, a spiral groove is provided on the circumferential surface of the spray roller, and two spiral grooves are provided, and the rotation directions of the two spiral grooves are opposite. A sliding block is connected below the spray member, and the sliding block slides in the spiral groove.

[0009] Preferably, an arc structure fitting the spiral groove is provided at the bottom end of the sliding block, and triangular blocks are provided on both sides of the sliding block, and the triangular blocks are arranged fitting the surface of the spiral groove.

[0010] Preferably, the sealing block is in a trapezoidal shape, and the width of the sealing block is consistent with the diameter of the injection hole, and the length of the sealing block is greater than the length of the slide groove.

[0011] Preferably, a pressurizing chamber is provided at one end of the spraying roller away from the driving motor, and the pressurizing chamber is connected to the spraying member through a material guide pipe, and a control chamber is provided at one side of the pressurizing chamber.

[0012] Preferably, an inner tube is arranged inside the material guide tube, and the inner tube is installed coaxially with the material guide tube, and a plurality of discharge holes are arranged in an array on the circumferential surface of the inner tube, and the shape of the discharge holes is a conical structure with an outer diameter larger than an inner diameter.

[0013] Preferably, the control mechanism includes a rectangular inner tube, a rotating groove, a sliding sleeve and a magnetic block. The rectangular inner tube is arranged inside the control chamber and is connected to one side of the spray roller. The rectangular inner tube is divided into a rotating end and a sliding end. A rotating groove is opened on the circumferential surface of the rotating end. There are two rotating grooves, and the two rotating grooves are spirally arranged. The rotation directions of the two rotating grooves are opposite. A sliding sleeve is coaxially installed on the rotating end. A protrusion is connected to the inner circumferential surface of the sliding sleeve, and the protrusion slides in the rotating groove. A connecting plate is connected to the outer circumferential surface of the sliding sleeve. A magnetic block is installed on the top of the connecting plate. The same magnetic block is arranged on the control rod to attract the connecting plate.

[0014] Preferably, a rectangular outer tube is coaxially installed on the outside of the rectangular inner tube, a connecting rod is provided on the outer surface of the rectangular inner tube, the connecting rod and the sliding block are provided with the same magnetic block, and the reciprocating motion of the spraying member drives the sliding end to move inside the rectangular outer tube.

[0015] Preferably, in the initial state, the sealing block is tangent to the edge of the injection hole, and the sealing block completely closes the injection hole, and the length of the rotating groove depends on the distance of one stroke of the sealing block.

[0016] Preferably, the method of use comprises the following steps:

[0017] S1: According to the production requirements and the formula of the rubber dumbbell sheet, the required rubber raw materials, additives and colorants are prepared, the rubber raw materials are placed in a mixing tank, and the additives and colorants are placed in a pressurized chamber;

[0018] S2: The turning motor drives the rubber mixing tank and the pressurizing device to keep them sealed, and the driving motor drives the rubber mixing roller and the spraying roller to start working to heat and extrude the rubber raw materials;

[0019] S3: The driving motor drives the control mechanism to start working, and drives the sealing block to reciprocate on the spraying member through the control rod, thereby controlling the opening and closing of the spraying hole;

[0020] S4: The spray roller drives the spray piece to reciprocate, and drives the rectangular inner tube to slide on the rectangular outer tube through the connecting rod, so as to evenly spray the additives and colorants in the mixing tank;

[0021] S5: The pressurizing device no longer pressurizes the mixing tank, the flip motor drives the mixing tank to rotate, the driving motor drives the mixing roller and the spraying roller to rotate, and the mixed rubber raw materials are discharged for subsequent work.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention provides a rubber mixing device for rubber dumbbell pieces and a method for using the same. The device drives a spray roller to rotate through a driving motor, a control mechanism is coaxially installed with the spray roller, the control mechanism drives a control rod to move back and forth, and the control rod drives a sealing block to move back and forth in a slide groove, thereby controlling the opening and closing of a spray hole. The opening and closing of the spray hole can make the pressurized additive in the spray part flow from the inside to the mixing pool, thereby realizing the flow of the additive from the inside to the outside, ensuring that the additive is more evenly dispersed in the rubber, and through the rotation and extrusion of the mixing roller and the spray roller, various additives are more evenly distributed in the entire rubber raw material.

[0024] 2. The present invention provides a mixing device for rubber dumbbell plates and a method of using the same. The device uses a spiral groove provided on a spray roller and a sliding block provided under a spray piece, so that when the spray roller rotates, the sliding block is squeezed by the spiral groove, so that the sliding block moves on the spiral groove. When the sliding block moves, it drives the spray piece to move left and right, so that the rubber raw materials and additives in the mixing tank can be mixed more evenly.

[0025] 3. The present invention provides a rubber mixing device for rubber dumbbell plates and a method for using the same. The device coordinates the left and right displacement of the spraying member through a control mechanism, thereby enabling the spraying member to evenly spray additives into the mixing pool within one stroke, thereby ensuring that the rubber raw materials and additives in the mixing pool can be evenly mixed, thereby ensuring that each batch of rubber mixture produced has the same component distribution, and ensuring that the final product has consistent performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the glue mixing tank of the present invention;

[0028] Figure 3 It is a cross-sectional view of the overall structure of the glue mixing tank of the present invention;

[0029] Figure 4 It is a cross-sectional view of the overall structure of the spray roller of the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the spraying roller and the spraying member of the present invention;

[0031] Figure 6 It is a cross-sectional view of the cooperation between the spraying roller and the spraying member of the present invention;

[0032] Figure 7 It is a partial enlarged view of the control mechanism of the present invention;

[0033] Figure 8 It is a cross-sectional view of the control mechanism of the present invention.

[0034] Reference numerals:

[0035] 1. Base; 2. Flip motor; 3. Pressurizing device; 4. Glue mixing tank; 5. Glue mixing roller; 51. Stirring element; 6. Spraying assembly; 61. Spraying roller; 611. Spiral groove; 612. Pressurizing chamber; 613. Control chamber; 62. Spraying element; 621. Hollow structure; 622. Spraying hole; 623. Slide groove; 624. Sliding block; 63. Sealing block; 64. Control rod; 65. Material guide pipe; 651. Inner tube; 652. Discharge hole; 66. Control mechanism; 661. Rectangular outer tube; 662. Rectangular inner tube; 6621. Rotating end; 6622. Sliding end; 663. Rotating groove; 664. Sliding sleeve; 6641. Bump; 665. Connecting rod; 666. Magnetic block; 7. Driving motor. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a mixing device for rubber dumbbells and a method of using the same are used to mix different raw materials with different types of rubber materials, including a base 1, a flip motor 2, a pressurizing device 3 and a mixing tank 4, wherein the base 1 is provided with a flip motor 2, and the output end of the flip motor 2 is connected to the mixing tank 4 through a gear set, and a pressurizing device 3 is provided above the mixing tank 4, and the mixing tank 4 increases the pressure inside the mixing tank 4 through the pressurizing device 3 to promote the mixing of the rubber material and the raw material, and a mixing roller 5 is provided in the mixing tank 4, and a driving motor 7 is provided at one end of the mixing roller 5, and a spraying assembly 6 is provided in the mixing tank 4, and the spraying assembly 6 includes a spraying roller 61, a spraying member 62, a sealing block 63, a control rod 64, a material guide pipe 65 and a control mechanism 66; the spraying roller 61 and the mixing roller 5 are symmetrically arranged in the mixing tank 4, and the spraying roller 61 and the mixing roller 5 are both provided with a driving motor 7 at one end, and a stirring member 51 is provided on the circumferential surface of the mixing roller 5 , and the stirring member 51 is symmetrically arranged, the stirring member 51 is arranged at one end of the spraying roller 61, and the spraying member 62 is arranged at the other end, and the spraying member 62 and the stirring member 51 are symmetrically installed; the interior of the spraying member 62 is a hollow structure 621, and a material guide pipe 65 is connected to one side of the spraying member 62, and spraying holes 622 are opened on both sides of the spraying member 62, and a slide groove 623 is opened on one side of the spraying hole 622, and sealing blocks 63 are arranged on both sides of the spraying member 62, and the sealing blocks 63 penetrate It is installed through the slide groove 623, and a control rod 64 is installed below the sealing block 63, and a control mechanism 66 is arranged below the control rod 64; a driving motor 7 is connected to one side of the spray roller 61, and a control mechanism 66 is arranged inside the spray roller 61, and the control mechanism 66 rotates coaxially with the spray roller 61, and the control mechanism 66 drives the control rod 64 to reciprocate, and the control rod 64 drives the sealing block 63 to reciprocate in the slide groove 623, thereby controlling the opening and closing of the spray hole 622.

[0038] During the working process, the operator first configures the appropriate amount of rubber raw materials and additives according to the needs of the rubber dumbbell piece. After the configuration is completed, the flip motor 2 is started. The flip motor 2 rotates through the gear set connected to it to drive the mixing tank 4 to rotate. After rotating a certain angle, a proper amount of rubber raw materials is put into the mixing tank 4, and the configured additives are added to the pressurizing chamber 612 on one side of the spraying roller 61. After the addition is completed, the mixing tank 4 is driven to rotate by the flip motor 2. The mixing tank 4 is flush with the pressurizing device 3, and the inside of the mixing tank 4 is pressurized by the pressurizing device 3. The mixing tank 4 is pressurized by the mixing roller 5. The rubber raw materials inside are heated. When the rubber raw materials are heated to the refining temperature, additives are added to the mixing tank 4. Conventional rubber is heated to 60°C-80°C, which is the refining temperature. Since the rubber raw materials need to be stirred and extruded by the driving motor 7 during the heating process, when the temperature of the rubber raw materials reaches the refining temperature, the control mechanism 66 set inside the spraying roller 61 drives the control rod 64 to move back and forth. When the control rod 64 reciprocates, it drives the sealing block 63 to reciprocate in the slide groove 623. In the initial state, the sealing block 63 completely covers the spray hole 62. 2 is closed. When it is necessary to add additives, the control rod 64 drives the sealing block 63 to open the injection hole 622. At this time, the pressure is provided to the pressure chamber 612 by an external pressure device (not shown in the figure). The pressure device (not shown in the figure) is arranged on one side of the pressure chamber 612, and the pressure device (not shown in the figure) is connected to the pressure chamber 612, so that the pressure in the pressure chamber 612 is maintained at a certain pressure. The pressure chamber 612 is connected to the injection piece 62 through the guide pipe 65. The injection piece 62 is a hollow structure 621, so that the pressure device (not shown in the figure) maintains a certain pressure inside the sealing piece. When the sealing block 63 opens the injection hole 622, the pressure inside the injection piece 62 is lost, and the additive enters the injection piece 62 through the guide pipe 65. Since the injection holes 622 are opened on both sides of the injection piece 62, the additive enters the mixing tank 4 through the injection holes 622. At this time, since the mixing roller 5 and the injection roller 61 continue to rotate, the rubber raw material and the additive are fully mixed, and then the additive is fully distributed in the rubber matrix, ensuring that the various additive raw materials in the rubber raw material after mixing are mixed evenly, avoiding the problem of uneven local concentration of the rubber raw material.

[0039] like Figure 5As shown, a spiral groove 611 is provided on the circumferential surface of the spray roller 61, and there are two spiral grooves 611, and the rotation directions of the two spiral grooves 611 are opposite. A sliding block 624 is connected below the spray member 62, and the sliding block 624 slides in the spiral groove 611. The two spiral grooves 611 provided on the circumferential surface of the spray roller 61 have opposite rotation directions and are connected at both ends. When the spray roller 61 rotates, the sliding block 624 is pushed to move in the spiral groove 611 through the limiting and squeezing of the spiral groove 611. When the spray member 62 moves from one end of the spiral groove 611 to the other end, the sliding block 624 moves in the spiral groove 611. When the sliding block 624 moves to one end of the spiral groove 611, the spray roller 61 continues to rotate at this time, and the sliding block 624 moves along the other spiral groove 611, thereby realizing the reciprocating motion of the spray roller 61, ensuring that the rubber raw materials and additives in the mixing tank 4 are fully and evenly stirred.

[0040] The bottom end of the sliding block 624 is provided with an arc structure that fits the spiral groove 611, and triangular blocks are provided on both sides of the sliding block 624. The triangular blocks are arranged to fit the surface of the spiral groove 611. Through such a setting, the stability of the sliding block 624 during movement is ensured, and the sliding block 624 is prevented from being offset. At the same time, the triangular blocks arranged on both sides of the sliding block 624 can clean up the residue of rubber raw materials adhering to the spiral groove 611 when the spray roller 61 rotates, thereby avoiding that some rubber raw materials are not fully mixed and processed, thereby avoiding unstable performance of the finished product.

[0041] like Figure 6 As shown, the sealing block 63 is in a trapezoidal shape, and the width of the sealing block 63 is consistent with the diameter of the injection hole 622, and the length of the sealing block 63 is greater than the length of the slide groove 623. The design of the trapezoidal sealing block 63 can effectively stir the rubber raw material and slide more smoothly inside the slide groove 623. The width of the sealing block 63 is consistent with the injection hole 622, which can avoid the problem of pressure relief in the injection piece 62. The length of the sealing block 63 is greater than the length of the slide groove 623, which effectively prevents the rubber raw material from entering the injection piece 62 through the slide groove 623 during the movement of the sealing block 63, resulting in an imbalance in the ratio of rubber raw material to additives, thereby causing the manufactured rubber product to have an excessive amount of internal additives.

[0042] A pressurizing chamber 612 is provided at one end of the spray roller 61 away from the driving motor 7, and the pressurizing chamber 612 is connected to the spray member 62 through a material guide pipe 65. A control chamber 613 is provided on one side of the pressurizing chamber 612, and the pressurizing chamber 612 is separated from the control chamber 613 to prevent the additive raw materials inside the pressurizing chamber 612 from entering the control chamber 613.

[0043] An inner tube 651 is arranged inside the guide tube 65, and the inner tube 651 is installed coaxially with the guide tube 65. A plurality of discharge holes 652 are arranged in an array on the circumferential surface of the inner tube 651. The discharge holes 652 are in a conical structure with an outer diameter larger than an inner diameter. Through the arrangement of the inner tube 651, when the additive enters the spraying member 62 from the pressurized chamber 612 through the guide tube 65, the additive will also be sprayed out from the discharge holes 652 on the circumferential surface of the inner tube 651. The discharge holes 652 with a conical structure can allow the additive to diffuse rapidly inside the spraying member 62. When the sealing block 63 opens the spray hole 622, the additive can be evenly mixed with the rubber raw material.

[0044] like Figure 7 , Figure 8 As shown, the control mechanism 66 includes a rectangular inner tube 662, a rotating groove 663, a sliding sleeve 664 and a magnetic block 666. The rectangular inner tube 662 is arranged inside the control chamber 613, and the rectangular tube is connected to one side of the spray roller 61. The rectangular inner tube 662 is divided into a rotating end 6621 and a sliding end 6622. The rotating end 6621 is provided with a rotating groove 663 on its circumferential surface. There are two rotating grooves 663, and the two rotating grooves 663 are arranged in a spiral. The rotation directions of the two rotating grooves 663 are opposite. The rotating end 6621 is coaxially mounted with a sliding sleeve 664. The inner circumference of the sliding sleeve 664 is A protrusion 6641 is connected to the surface, and the protrusion 6641 slides in the rotating groove 663. The outer circumferential surface of the sliding sleeve 664 is connected to a connecting plate, and a magnetic block 666 is installed on the top of the connecting plate. The same magnetic block 666 is arranged on the control rod 64 to attract the connecting plate. A rectangular outer tube 661 is coaxially installed on the outer side of the rectangular inner tube 662. A connecting rod 665 is arranged on the outer surface of the rectangular inner tube 662. The same magnetic block 666 is arranged on the connecting rod 665 and the sliding block 624. The reciprocating motion of the spraying member 62 drives the sliding end 6622 to move inside the rectangular outer tube 661.

[0045] During operation, in order to ensure that the additives in each area of ​​the mixing tank 4 are more evenly distributed, the sleeve 664 on the rectangular inner tube 662 cooperates with the rotating groove 663. When mixing glue, when the protrusion 6641 provided on the inner side of the sleeve 664 rotates on the rotating groove 663, the connecting plate provided at the top of the sleeve 664 and the contact part of the control rod 64 are provided with a magnetic block 666. Therefore, when the sleeve 664 rotates, it can drive the control rod 64 to reciprocate, so that the control rod 64 drives the sealing block 63 to open or close the spray nozzle. The principle of the reciprocating motion of the material hole 622 and the protrusion 6641 in the rotating groove 663 is the same as the principle of the movement of the sliding block 624 on the spiral groove 611. When the spraying member 62 moves in the rotating groove 663, the sliding block 624 is connected to the connecting rod 665 through the magnetic block 666. During the movement, the sliding end 6622 of the rectangular inner tube 662 can be driven to move inside the rectangular outer tube 661, so that the additive can be sprayed out from the spraying hole 622 while the spraying member 62 moves, so that the additive is evenly distributed in the mixing glue pool 4.

[0046] In the initial state, the sealing block 63 is tangent to the edge of the injection hole 622, and the sealing block 63 completely closes the injection hole 622. The length of the rotating groove 663 depends on the distance of a stroke of the sealing block 63. The injection piece 62 and the stirring piece 51 installed on the injection roller 61 are located on both sides of the spiral groove 611. The injection roller 61 is located at one end of the spiral groove 611, and the stirring piece 51 is located at the other end of the spiral groove 611 but does not completely fit one end of the spiral groove 611. There is a certain distance between the stirring piece 51 and one end of the spiral groove 611 to prevent the injection roller 61 from rotating and the stirring piece 51 and the injection piece 62 from getting stuck in the middle position.

[0047] The method of use comprises the following steps:

[0048] S1: According to the production requirements and the formula of the rubber dumbbell sheet, the required rubber raw materials, additives and colorants are prepared, the rubber raw materials are placed in the mixing tank 4, and the additives and colorants are placed in the pressurizing chamber 612;

[0049] S2: The turning motor 2 drives the rubber mixing tank 4 and the pressurizing device 3 to keep the seal, and the driving motor 7 drives the rubber mixing roller 5 and the spraying roller 61 to start working to heat and extrude the rubber raw material;

[0050] S3: The driving motor 7 drives the control mechanism 66 to start working, and drives the sealing block 63 to reciprocate on the spraying member 62 through the control rod 64, thereby controlling the opening and closing of the spraying hole 622;

[0051] S4: The spray roller 61 drives the spray member 62 to reciprocate, and drives the rectangular inner tube 662 to slide on the rectangular outer tube 661 through the connecting rod 665, so as to evenly spray the additives and colorants in the mixing tank 4;

[0052] S5: the pressurizing device 3 no longer pressurizes the rubber mixing tank 4, the turning motor 2 drives the rubber mixing tank 4 to rotate, and the driving motor 7 drives the rubber mixing roller 5 and the spraying roller 61 to rotate, and the mixed rubber raw materials are discharged for subsequent work.

[0053] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A rubber mixing device for a rubber dumbbell, used for mixing different raw materials with different types of rubber, comprising a base (1), a flip motor (2), a pressurizing device (3) and a rubber mixing pool (4), wherein the base (1) is provided with a flip motor (2), and the output end of the flip motor (2) is connected to the rubber mixing pool (4) via a gear set, and a pressurizing device (3) is provided above the rubber mixing pool (4), and the rubber mixing pool (4) increases the pressure inside the rubber mixing pool (4) through the pressurizing device (3) to promote mixing of the rubber and the raw materials, characterized in that: A mixing roller (5) is provided in the mixing tank (4), and a driving motor (7) is provided at one end of the mixing roller (5). A spraying assembly (6) is provided in the mixing tank (4), and the spraying assembly (6) comprises a spraying roller (61), a spraying member (62), a sealing block (63), a control rod (64), a material guide pipe (65) and a control mechanism (66); The spray roller (61) and the rubber mixing roller (5) are symmetrically arranged in the rubber mixing pool (4), and one end of each of the spray roller (61) and the rubber mixing roller (5) is provided with a driving motor (7). A stirring member (51) is arranged on the circumferential surface of the rubber mixing roller (5), and the stirring member (51) is symmetrically arranged. The spray roller (61) is provided with a stirring member (51) at one end and a spray member (62) at the other end, and the spray member (62) and the stirring member (51) are symmetrically installed. The spraying member (62) has a hollow structure (621) inside, and a material guide pipe (65) is connected to one side of the spraying member (62). Spraying holes (622) are provided on both sides of the spraying member (62), and a slide groove (623) is provided on one side of the spraying hole (622). Sealing blocks (63) are provided on both sides of the spraying member (62), and the sealing blocks (63) are installed through the slide groove (623). A control rod (64) is installed below the sealing block (63), and a control mechanism (66) is provided below the control rod (64); A drive motor (7) is connected to one side of the spray roller (61), and a control mechanism (66) is provided inside the spray roller (61). The control mechanism (66) rotates coaxially with the spray roller (61). The control mechanism (66) drives the control rod (64) to move back and forth, and the control rod (64) drives the sealing block (63) to move back and forth in the slide groove (623), thereby controlling the opening and closing of the spray hole (622); The spray roller (61) is provided with a spiral groove (611) on its circumferential surface, and two spiral grooves (611) are provided, and the two spiral grooves (611) rotate in opposite directions; a sliding block (624) is connected below the spray member (62), and the sliding block (624) slides in the spiral groove (611); A pressurizing chamber (612) is provided at one end of the spraying roller (61) away from the driving motor (7), and the pressurizing chamber (612) is connected to the spraying member (62) via a material guide pipe (65), and a control chamber (613) is provided at one side of the pressurizing chamber (612); An inner tube (651) is arranged inside the material guide tube (65), and the inner tube (651) is coaxially installed with the material guide tube (65). A plurality of discharge holes (652) are arranged in an array on the circumferential surface of the inner tube (651), and the shape of the discharge holes (652) is a conical structure with an outer diameter larger than an inner diameter; The control mechanism (66) comprises a rectangular inner tube (662), a rotating groove (663), a sliding sleeve (664) and a magnetic block (666). The rectangular inner tube (662) is arranged inside the control chamber (613), and the rectangular tube is connected to one side of the spray roller (61). The rectangular inner tube (662) is divided into a rotating end (6621) and a sliding end (6622). The rotating end (6621) has a rotating groove (663) on its circumferential surface. The rotating groove (663) has two rotating grooves, and the two rotating grooves are connected to the control chamber (613). The grooves (663) are arranged in a spiral shape, and the rotation directions of the two rotating grooves (663) are opposite. The rotating end (6621) is coaxially mounted with a sliding sleeve (664), and a protrusion (6641) is connected to the inner circumferential surface of the sliding sleeve (664), and the protrusion (6641) slides in the rotating groove (663). The outer circumferential surface of the sliding sleeve (664) is connected to a connecting plate, and a magnetic block (666) is mounted on the top of the connecting plate. The same magnetic block (666) is arranged on the control rod (64) to attract the connecting plate. A rectangular outer tube (661) is coaxially mounted on the outer side of the rectangular inner tube (662); a connecting rod (665) is provided on the outer surface of the rectangular inner tube (662); the connecting rod (665) and the sliding block (624) are provided with the same magnetic block (666); the reciprocating motion of the spraying member (62) drives the sliding end (6622) to move inside the rectangular outer tube (661).

2. A rubber mixing device for rubber dumbbell plates according to claim 1, characterized in that: The bottom end of the sliding block (624) is provided with an arc-shaped structure that fits the spiral groove (611), and triangular blocks are provided on both sides of the sliding block (624), and the triangular blocks are arranged to fit the surface of the spiral groove (611).

3. A rubber mixing device for rubber dumbbell plates according to claim 1, characterized in that: The sealing block (63) is in a trapezoidal shape, and the width of the sealing block (63) is consistent with the diameter of the injection hole (622), and the length of the sealing block (63) is greater than the length of the slide groove (623).

4. A rubber mixing device for rubber dumbbell plates according to claim 3, characterized in that: In the initial state, the sealing block (63) is tangent to the edge of the injection hole (622), and the sealing block (63) completely closes the injection hole (622). The length of the rotating groove (663) depends on the distance of one stroke of the sealing block (63).

5. A method for using a rubber mixing device for a rubber dumbbell piece, the method using any one of claims 1 to 4 for a rubber mixing device for a rubber dumbbell piece, characterized in that: The method of use comprises the following steps: S1: According to production requirements and the formula of the rubber dumbbell sheet, the required rubber raw materials, additives and colorants are prepared, the rubber raw materials are placed in a rubber mixing tank (4), and the additives and colorants are placed in a pressurizing chamber (612); S2: the turning motor (2) drives the rubber mixing tank (4) and the pressure device (3) to maintain a seal, and the driving motor (7) drives the rubber mixing roller (5) and the spraying roller (61) to start working to heat and extrude the rubber raw material; S3: the driving motor (7) drives the control mechanism (66) to start working, and drives the sealing block (63) to reciprocate on the spraying member (62) through the control rod (64), thereby controlling the opening and closing of the spraying hole (622); S4: the spraying roller (61) drives the spraying member (62) to reciprocate, and drives the rectangular inner tube (662) to slide on the rectangular outer tube (661) through the connecting rod (665), so as to evenly spray the additive and the colorant into the mixing tank (4); S5: The pressurizing device (3) no longer pressurizes the rubber mixing tank (4), the turning motor (2) drives the rubber mixing tank (4) to rotate, and the driving motor (7) drives the rubber mixing roller (5) and the spraying roller (61) to rotate, so as to discharge the mixed rubber raw materials for subsequent work.

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