A pouring device for polyurethane tire processing

Abstract

The present application relates to the technical field of tire processing, and discloses a pouring device for polyurethane tire processing, which mainly includes a rotating ring, a mold assembly, a moving assembly and a movable assembly, wherein the outer movable sleeve of the mold assembly is connected with a rotating ring, and the inner movable sleeve of the pouring cavity of the mold assembly is connected with a movable assembly, and the top of the movable assembly is connected with the moving assembly. The present invention regulates the moving assembly according to the flow rate of the mixture, so that the moving assembly controls the moving assembly to move upward, so that the bottom end of the movable assembly always maintains an extremely short distance with the liquid surface of the mixture, which can reduce the initial spatial volume of the pouring cavity of the mold assembly, thereby reducing the amount of air mixed in the mixture, and can make the liquid surface of the mixture shake and rub slightly with the bottom end of the movable assembly during the continuous rising process, effectively eliminate the bubbles in the mixture, and discharge the air in the mixture in time, so as to prevent the existence of bubbles from causing small holes inside the molded tire, thereby improving product quality.

Description

Technical Field

[0001] The present application relates to the technical field of tire processing, and in particular to a casting device for polyurethane tire processing. Background Art

[0002] Cars are one of the most common and convenient means of transportation in daily life, and the performance of tires plays a vital role in their use. Tires are round elastic rubber products that roll on the ground and are usually installed on wheels to support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the vehicle's driving performance.

[0003] Existing tires generally use rubber or polyurethane. Rubber is the preferred material for manufacturing tires, but it has disadvantages such as short service life, poor wear resistance and tear strength. Polyurethane overcomes the shortcomings of rubber and greatly improves oil and acid resistance, wear resistance, tear strength and tire service life. In the process of automobile tire manufacturing, a casting device is often used, which mainly includes a feeding mechanism, a stirring mechanism, a mold, etc. Various ingredients are added to the feeding mechanism, and then the various ingredients are stirred to make all the ingredients undergo chemical or physical reactions to become a mixture, and then the mixture is poured into the mold to make a finished product. The preparation process is simple.

[0004] However, the existing casting device still has some defects during use: when the liquid polyurethane mixture flows into the mold, air will be mixed into the liquid polyurethane mixture, causing bubbles to form in the mixture solution entering the mold. Because the liquid polyurethane is relatively thick and the internal environment of the mold is closed, the bubbles generated are difficult to release, resulting in small holes inside the molded tire, affecting product quality. Summary of the invention

[0005] The present application proposes a pouring device for polyurethane tire processing, which has the advantages of effectively eliminating bubbles in the mixture solution and improving the molding quality of the finished product, and is used to solve the problem that small holes are generated inside the molded tire due to the difficulty in releasing bubbles, thereby affecting the product quality.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a pouring device for polyurethane tire processing, comprising:

[0007] The pouring mechanism is the main component of the tire pouring and molding, and the pouring mechanism includes a rotating ring, a mold assembly, a moving assembly and a movable assembly. The outer part of the mold assembly is movably sleeved with the rotating ring, and the moving assembly is fixedly arranged on the top of the rotating ring. A central cavity is opened in the middle of the mold assembly, and a pouring cavity is opened inside the mold assembly located outside the central cavity. The central cavity of the mold assembly and the pouring cavity are connected through a feed hole. The pouring cavity of the mold assembly is movably sleeved with a movable assembly, and the top of the movable assembly is connected to the moving assembly. During pouring, the mixture is first injected into the central cavity and then injected into the pouring cavity through the feed hole. According to the injection speed of the mixture, the moving assembly controls the movable assembly to move upward, and the bottom end of the movable assembly is always in a state of being in contact with the liquid surface of the mixture.

[0008] A feeding mechanism is used to provide raw materials for tire casting. The feeding mechanism includes a feeding box and a feeding assembly. A cylindrical cavity is opened inside the feeding box. A feeding assembly is fixedly connected to one side of the feeding box. The feeding assembly includes a feeding pipe, a telescopic part and a feeding pipe. The feeding pipe is L-shaped. One end of the feeding pipe is fixedly connected to the cylindrical cavity of the feeding box, and the end of the feeding pipe is flush with the bottom end of the cylindrical cavity. The other end of the feeding pipe is fixedly sleeved with the upper end of the telescopic part, and the lower end of the telescopic part is fixedly sleeved with one end of the feeding pipe. The other end of the feeding pipe is movably sleeved with the central cavity of the mold assembly. The telescopic part is hydraulically controlled to be telescopic and retractable to achieve a change in length, thereby changing the position of the feeding pipe, so that the feeding assembly can feed the mold assembly in a directional manner, and the feeding height is adjustable, thereby achieving flexible adjustment of the raw material injection position.

[0009] Furthermore, the feeding mechanism further comprises:

[0010] A feed cover, the top of the feed box is movably connected with the feed cover, and the top of the feed cover is fixedly connected with four connecting pipes;

[0011] Support columns are fixedly connected to the four corners of the bottom end of the feed box.

[0012] Furthermore, it also includes a stirring mechanism for evenly stirring the several ingredients in the feeding mechanism, and the stirring mechanism includes:

[0013] A stirring motor is provided below the feed box, and the stirring motor can change the rotation speed;

[0014] A stirring shaft, wherein the top end of the stirring motor is movably connected to the stirring shaft, and a stirring blade is fixedly connected to the outer wall of the stirring shaft located inside the feed box;

[0015] A stirring gear is fixedly sleeved on the outer wall of the stirring shaft located outside the feed box, and a tooth groove is provided on the edge of the stirring gear.

[0016] Furthermore, it also includes a fixing mechanism for transmitting the rotational force of the stirring mechanism to the rotating ring, and the fixing mechanism includes:

[0017] A fixed column is provided between the stirring mechanism and the rotating ring, and the fixed column is made of a material with high density and heavy mass;

[0018] A fixed shaft, one end of which is movably sleeved on the top of the fixed column;

[0019] A lower gear, wherein the lower half of the fixed shaft is fixedly sleeved with the lower gear, the edge of the lower gear is fixedly connected with a plurality of tooth blocks, and the lower gear is meshed with the stirring gear through the tooth blocks, and the tooth blocks of the lower gear are provided with a circle;

[0020] An upper gear is fixedly sleeved on the upper half of the fixed shaft, a tooth block is fixedly connected to the edge of the upper gear, and the upper gear is meshed with the rotating ring through the tooth block, and the tooth block of the upper gear is provided with three quarters of a circle.

[0021] Furthermore, it also includes a working mechanism, the pouring mechanism is arranged on the working mechanism, and is used to achieve continuous pouring, and the working mechanism includes:

[0022] A workbench, wherein the workbench is located on one side of the feeding mechanism;

[0023] A rotating motor assembly, the lower half of which is fixedly sleeved on the middle of the workbench;

[0024] A rotating table, the upper half of the rotating motor assembly being fixedly sleeved with the rotating table;

[0025] A rolling ball is provided, wherein a gap is provided between the workbench and the rotating table, the bottom end of the rotating table is movably connected with the rolling ball, and the rolling ball is fitted with the top end of the workbench.

[0026] Furthermore, the number of the pouring mechanisms is greater than one, and the pouring mechanisms are evenly arranged around the rotating table. The rotating ring is annular, and the edge of the rotating ring extends out of the rotating table. The edge of the rotating ring is provided with a tooth groove.

[0027] Further, the central cavity of the mold assembly is cylindrical, the number of feed holes of the mold assembly is three, and the three feed holes are evenly arranged around the central cavity, the feed holes are connected with the bottom end of the central cavity and the bottom end of the casting cavity, the shape of the casting cavity is tire-shaped, and the mold assembly includes:

[0028] A lower mold, wherein the lower mold is arranged on the top of the rotating table;

[0029] The outer mold, the top outer ring of the lower mold is tightly fitted with the bottom end of the outer mold;

[0030] Inner mold, the top inner ring of the lower mold is tightly fitted with the bottom end of the inner mold;

[0031] A clamping block is fixedly connected to the middle part of the bottom end of the lower mold, a top groove is opened on the top of the rotating table, and the rotating table is movably clamped with the clamping block through the top groove;

[0032] The lower mold and the outer mold are fixed by fixing bolts, and the lower mold and the inner mold are fixed by fixing bolts.

[0033] Furthermore, the number of the moving components is two, and the two moving components are evenly arranged around the rotating ring, and are used to provide power for the moving components to move up and down in the casting cavity. The moving components include:

[0034] A hydraulic cylinder, wherein the bottom end of the hydraulic cylinder is fixedly connected to the top end of the rotating ring, and the upward movement speed of the hydraulic cylinder is the same as the upward movement speed of the mixture in the casting cavity of the mold assembly;

[0035] A moving part, wherein the moving part is in the shape of two U-shaped sections of unequal lengths, one section of the moving part is movably sleeved with the top end of the hydraulic cylinder, and the outer wall of the other section of the moving part is provided with a threaded groove;

[0036] A fixing member, the bottom end of which is fixedly connected to the top end of the movable component, and the outer wall of the fixing member is provided with a threaded groove;

[0037] A spiral component, one end of which is movably connected to the thread groove of the movable component, and the other end of which is movably connected to the thread groove of the fixed component.

[0038] Further, the movable component is a main component for eliminating bubbles, and the movable component includes:

[0039] A movable plate, the movable plate is annular in shape and is movably sleeved in the casting cavity of the mold assembly, the bottom surface shape of the movable plate is adapted to the shape of the tire, and the top surface shape of the movable plate is adapted to the top of the casting cavity of the mold assembly, and when the movable plate moves in the casting cavity, the two sides of the movable plate do not contact the wall surface of the casting cavity of the mold assembly;

[0040] A deformation capsule, wherein an activity cavity is provided inside the movable plate, and the movable plate is sleeved with the deformation capsule through the activity cavity, the top and bottom of the middle part of the deformation capsule are fixedly connected to the wall surface of the activity cavity of the movable plate, and the two ends of the deformation capsule are not fixedly connected to the wall surface of the activity cavity of the movable plate, the deformation capsule is made of a deformable material, and the deformation capsule can be filled with gas;

[0041] An air valve, wherein the air valve is located at the top of the deformation bag, and one end of the air valve is fixedly connected to the interior of the deformation bag, and the other end of the deformation bag passes through the movable plate;

[0042] An isolating member, the isolating member is arranged in the deformation bag, and the shape of the isolating member is T-shaped, the isolating member has three branch pipes, one branch pipe of the isolating member is fixedly sleeved with the bottom end wall of the deformation bag, and the outer wall of the branch pipe extending out of the deformation bag is fixedly sleeved with the inside of the movable plate, the other two branch pipes of the isolating member are fixedly connected with the two end walls of the deformation bag, and a contraction spring is arranged in the branch pipe, the number of the isolating members is several, and the several isolating members are evenly arranged around the movable plate;

[0043] A movable part is arranged inside the movable plate, and is used to eliminate bubbles in the mixture and promote uniform dispersion of the mixture.

[0044] Furthermore, the movable part comprises:

[0045] A movable block, wherein a movable groove is provided at the bottom end of the movable plate, and the movable block can be completely sleeved in the movable groove of the movable plate;

[0046] The movable rope, the movable groove of the movable plate is connected to the isolation piece, and the top of the movable block is fixedly connected with two movable ropes, and the movable rope passes through the isolation piece and is fixedly connected to one end wall of the deformation bag.

[0047] The beneficial effects of the present invention are as follows:

[0048] The present application provides a casting device for polyurethane tire processing. A moving component is arranged on the outside of a mold assembly, and an active component is arranged on the inside of the mold assembly. The moving component controls the movement of the active component. When a mixture enters the central cavity of the mold assembly and enters the casting cavity of the mold assembly through a feed hole, the moving component is regulated according to the flow rate of the mixture, so that the moving component controls the active component to move upward, so that the bottom end of the active component always maintains an extremely short distance from the liquid surface of the mixture. This can reduce the initial spatial volume of the casting cavity of the mold assembly, thereby reducing the amount of air mixed in the mixture, and can cause the liquid surface of the mixture to slightly shake and rub against the bottom end of the active component during the continuous rising process, thereby effectively eliminating bubbles in the mixture, and timely discharging the air in the mixture, preventing the presence of bubbles from causing small holes inside the molded tire, and improving product quality.

[0049] A rotating ring is movably arranged on the outside of the mold component, and the movable component is placed on the top of the rotating ring. A stirring gear is arranged on the stirring shaft, and the stirring gear is meshed with the lower gear, and the upper gear is meshed with the rotating ring. During pouring, the stirring motor drives the stirring shaft and the stirring gear to rotate slowly, so that the rotating ring rotates slowly, thereby realizing the slow rotation of the movable component in the pouring cavity, further making the bottom end of the movable component rub the liquid surface of the mixture, further fully eliminating the bubbles in the mixture, and timely discharging the air in the mixture. In addition, the rotating movable component can provide thrust for the mixture to flow from the inside to the outside of the pouring cavity, thereby fully improving the uniformity of the flow of the mixture.

[0050] By making the movable component consist of a movable plate, a deformation bag, an air valve, an insulating part and a movable part, when pouring, the air flow in the deformation bag is small and in a contracted state, so that the movable part moves down and contacts with the top surface of the mixture. At this time, the rotation of the movable plate can make the movable part slowly stir the top surface of the mixture, which not only further eliminates the bubbles in the mixture, but also further improves the uniformity of the flow of the mixture. When the pouring is completed, a hot air flow is injected into the deformation bag through the air valve, which can not only heat the liquid surface of the mixture to achieve the escape of air in the mixture and further eliminate bubbles, but also make the movable part move up and shrink in the movable plate, so as to avoid the movable part affecting the molding of the tire and improve the molding quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0052] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0053] Figure 2 It is a three-dimensional structural diagram of the overall section of the present invention;

[0054] Figure 3 For the present invention Figure 2 A magnified structural diagram;

[0055] Figure 4 It is a three-dimensional structural diagram of the feeding mechanism, the stirring mechanism and the fixing mechanism in the present invention;

[0056] Figure 5 It is a cross-sectional three-dimensional structural diagram of the feeding mechanism, the stirring mechanism and the fixing mechanism in the present invention;

[0057] Figure 6 It is a three-dimensional structural diagram of the working mechanism in the present invention;

[0058] Figure 7 It is a cross-sectional three-dimensional structural diagram of the working mechanism in the present invention;

[0059] Figure 8 For the present invention Figure 7 The enlarged structure diagram at B;

[0060] Fig. 9 It is a three-dimensional structural diagram of the working mechanism without the pouring mechanism in the present invention;

[0061] Fig.10 It is a three-dimensional structural diagram of the stirring mechanism, the fixing mechanism and the pouring mechanism in the present invention;

[0062] Fig.11 It is a three-dimensional structural diagram of a pouring mechanism in the present invention;

[0063] Fig.12 It is a three-dimensional structural diagram of the mold assembly in the present invention;

[0064] Fig.13 It is a cross-sectional three-dimensional structural diagram of the mold assembly in the present invention;

[0065] Fig.14 It is a three-dimensional structural diagram of the pouring mechanism without the mold assembly in the present invention;

[0066] Fig.15 It is a cross-sectional three-dimensional structural diagram of the pouring mechanism without the mold assembly in the present invention;

[0067] Fig.16 For the present invention Fig.15 The enlarged structure diagram at C;

[0068] Fig.17 It is a three-dimensional structural diagram of the deformation bag, the air valve, the isolation member and the movable member in the present invention;

[0069] Fig.18 It is a three-dimensional structural diagram of the isolation member and the movable member in the present invention;

[0070] Fig.19 It is a three-dimensional structural diagram of the movable part in the present invention.

[0071] In the figure: 1. feeding mechanism; 11. feeding box; 12. feeding cover; 13. supporting column; 14. feeding assembly; 141. feeding pipe; 142. telescopic member; 143. feeding pipe; 2. stirring mechanism; 21. stirring motor; 22. stirring shaft; 23. stirring gear; 3. fixing mechanism; 31. fixing column; 32. fixing shaft; 33. lower gear; 34. upper gear; 4. working mechanism; 41. working table; 42. rotating motor assembly; 43. Rotating table; 44, rolling ball; 5, pouring mechanism; 51, rotating ring; 6, mold assembly; 61, lower mold; 62, outer mold; 63, inner mold; 64, clamping block; 65, fixing bolt; 7, moving assembly; 71, hydraulic cylinder; 72, moving part; 73, fixing part; 74, spiral part; 8, movable assembly; 81, movable plate; 82, deformation bag; 83, air valve; 84, insulating part; 9, movable part; 91, movable block; 92, movable rope. DETAILED DESCRIPTION

[0072] 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.

[0073] Embodiment 1, a pouring device for polyurethane tire processing, such as Figure 1-Figure 3 , Figure 6-Figure 9 , including a workbench 41, the lower half of the rotating motor assembly 42 is fixedly sleeved on the middle part of the workbench 41, and the upper half of the rotating motor assembly 42 is fixedly sleeved on the rotating table 43, the rotating motor assembly 42 can drive the rotating table 43 to rotate, thereby changing the position of the pouring mechanism 5 on the rotating table 43, so that several pouring mechanisms 5 can complete pouring in sequence, there is a gap between the workbench 41 and the rotating table 43, the bottom end of the rotating table 43 is movably connected with a rolling ball 44, and the rolling ball 44 is in contact with the top of the workbench 41, which can effectively reduce the friction resistance of the rotating table 43 when it moves on the workbench 41, and improve the flexibility of the rotating table 43, so that the workbench 41, the rotating motor assembly 42, the rotating table 43 and the rolling ball 44 together constitute the working mechanism 4, and can pour multiple pouring mechanisms 5 on the working mechanism 4 in a short time, thereby improving the pouring efficiency.

[0074] like Figure 1-Figure 3 , Figure 6-Figure 15The pouring mechanism 5 is arranged on the working mechanism 4, and the pouring mechanism 5 is the main component for tire pouring and molding. The number of the pouring mechanisms 5 is greater than one, and the pouring mechanisms 5 are evenly arranged around the rotating table 43. The pouring mechanism 5 includes a rotating ring 51, a mold assembly 6, a moving assembly 7 and a movable assembly 8. The outer part of the mold assembly 6 is movably sleeved with the rotating ring 51, and the moving assembly 7 is fixedly arranged on the top of the rotating ring 51. A central cavity is opened in the middle of the mold assembly 6, and a pouring cavity is opened inside the mold assembly 6 located outside the central cavity. The central cavity of the mold assembly 6 is connected to the pouring cavity through a feed hole. The inner part of the pouring cavity of the mold assembly 6 is movably sleeved with the movable assembly 8, and the top of the movable assembly 8 is connected to the movable assembly 7. During pouring, the mixture is first injected into the central cavity and then injected into the pouring cavity through the feed hole. According to the mixture injection speed, the moving component 7 controls the movable component 8 to move upward, and the bottom end of the movable component 8 is always in a state of being in contact with the mixture liquid surface, that is, the bottom end of the movable component 8 is always kept at a very short distance from the mixture liquid surface. The setting of this very short distance can not only realize the intermittent mutual friction contact between the two during the upward movement, but also reserve space for the timely discharge of gas in the mixture, thereby reducing the initial space volume of the casting cavity of the mold component 6, thereby reducing the amount of air mixed in the mixture, and making the mixture liquid surface shake and rub slightly with the bottom end of the movable component 8 during the continuous rising process, effectively eliminating bubbles in the mixture, and timely discharging the air in the mixture, preventing the existence of bubbles from causing small holes inside the molded tire, and improving product quality. Specifically:

[0075] like Fig.13 The central cavity of the mold assembly 6 is cylindrical, which is convenient for the mixture to fall. The number of feed holes of the mold assembly 6 is three, and the three feed holes are evenly arranged around the central cavity. The feed holes are connected with the bottom end of the central cavity and the bottom end of the pouring cavity, which is convenient for the mixture to flow from the bottom end of the central cavity into the bottom end of the pouring cavity, thereby realizing the continuous increase of the mixed liquid level. The shape of the pouring cavity is tire-shaped, and the wall of the pouring cavity may be provided with raised strips, thereby improving the molding quality of the tire and enhancing the friction of the tire. The mold assembly 6 includes a lower mold 61, an outer mold 62, an inner mold 63, a clamping block 64 and a fixing bolt 65, as shown Figure 11-13The lower mold 61 is arranged at the top of the rotating table 43, the top outer ring of the lower mold 61 is tightly attached to the bottom of the outer mold 62, the top inner ring of the lower mold 61 is tightly attached to the bottom of the inner mold 63, and a clamping block 64 is fixedly connected to the middle of the bottom end of the lower mold 61. A top groove is provided at the top of the rotating table 43, and the rotating table 43 is movably connected to the clamping block 64 through the top groove. When pouring is required, the mold assembly 6 can be stably arranged on the rotating table 43. When disassembly is required, the mold assembly 6 can be directly lifted up to achieve separation from the rotating table 43. The lower mold 61 and the outer mold 62 are threadedly fixed by fixing bolts 65, and the lower mold 61 and the inner mold 63 are threadedly fixed by fixing bolts 65. During pouring, the lower mold 61, the outer mold 62 and the inner mold 63 are tightly fitted to each other by fixing bolts 65, so that there is no gap in the pouring cavity, thereby ensuring the pouring quality. After pouring and curing, the fixing bolts 65 are removed to separate the lower mold 61, the outer mold 62 and the inner mold 63, so that the molded tire can be taken out, making the operation simple and convenient.

[0076] like Figure 14-16 The number of the moving components 7 is two, and the two moving components 7 are evenly arranged around the rotating ring 51, and are used to provide power for the moving component 8 to move up and down in the casting cavity. The moving component 7 includes a hydraulic cylinder 71, a moving part 72, a fixing part 73 and a screw part 74, such as Fig.15 The bottom end of the hydraulic cylinder 71 is fixedly connected to the top end of the rotating ring 51, and the upward movement speed of the hydraulic cylinder 71 is the same as the upward movement speed of the mixture in the casting cavity of the mold assembly 6, so that the bottom end of the movable assembly 8 always maintains a very short distance from the liquid surface of the mixture. The shape of the movable member 72 is two U-shaped sections of unequal lengths. One section of the movable member 72 is movably connected to the top end of the hydraulic cylinder 71, and the outer wall of the other section of the movable member 72 is provided with a threaded groove. The bottom end of the fixed member 73 is fixedly connected to the top end of the movable assembly 8, and the outer wall of the fixed member 73 is provided with a threaded groove. One end of the spiral member 74 is movably connected to the threaded groove of the movable member 72, and the other end of the spiral member 74 is movably connected to the threaded groove of the fixed member 73, thereby realizing a stable connection between the other end of the movable member 72 and the movable assembly 8, so that when the hydraulic cylinder 71 controls the movable member 72 to move, it can synchronously drive the movable assembly 8 to move. In addition, when it is necessary to separate the movable member 72 from the movable assembly 8, it is only necessary to rotate the spiral member 74 so that the spiral member 74 is completely moved to the movable member 72.

[0077] like Figure 14-16The movable component 8 is the main component for eliminating bubbles. The movable component 8 includes a movable plate 81. The movable plate 81 is annular in shape, and the movable plate 81 is movably sleeved in the casting cavity of the mold component 6. The bottom surface shape of the movable plate 81 is adapted to the shape of the tire, and the top surface shape of the movable plate 81 is adapted to the top of the casting cavity of the mold component 6, that is, when the movable plate 81 moves to the top of the casting cavity, the two cooperate to form a tire shape, thereby ensuring that the object formed by casting is in the shape of a tire. When the movable plate 81 moves in the casting cavity, the two sides of the movable plate 81 do not contact the wall surface of the casting cavity of the mold component 6, which can prevent the raised strips that may be set on the wall surface of the mold component 6 from affecting the movement of the movable plate 81, and can also provide a removal space for the discharge of gas in the mixture.

[0078] Embodiment 2, based on embodiment 1, a pouring device for polyurethane tire processing, such as Figure 1-Figure 5 , also includes a feeding box 11, the inside of the feeding box 11 is provided with a cylindrical cavity, which is the main place for mixing ingredients, and the top of the feeding box 11 is movably connected with a feeding cover 12. When the feeding mechanism 1 is working, the feeding box 11 and the feeding cover 12 are stably connected, so that the cylindrical cavity forms a relatively sealed environment to prevent impurities from mixing into the mixture. The top of the feeding cover 12 is fixedly connected with four connecting pipes, which can simultaneously input several different ingredients into the feeding box 11 to save feeding time. The four corners of the bottom end of the feeding box 11 are fixedly connected with support columns 13, which can improve the stability of the setting of the feeding box 11. One side of the feeding box 11 is fixedly connected with a feeding component 14, such as Figure 3 The feeding assembly 14 includes a feeding pipe 141, a telescopic member 142 and a feeding pipe 143. The feeding pipe 141 is L-shaped. One end of the feeding pipe 141 is fixedly connected to the cylindrical cavity of the feeding box 11, and the end of the feeding pipe 141 is flush with the bottom end of the cylindrical cavity. The other end of the feeding pipe 141 is fixedly connected with the upper end of the telescopic member 142. The lower end of the telescopic member 142 is fixedly connected with one end of the feeding pipe 143. The other end of the feeding pipe 143 is movably connected with the central cavity of the mold assembly 6. The telescopic member 142 is hydraulically controlled to be retractable. The length of the feed tube 143 changes by contraction, thereby changing the position of the feed tube 143. When the telescopic member 142 contracts, the feed tube 143 moves up and is not connected with the mold assembly 6. At this time, the feed box 11 does not inject the mixture through the feeding assembly 14. When the telescopic member 142 extends, the feed tube 143 moves down and is connected with the mold assembly 6. At this time, the feed box 11 injects the mixture through the feeding assembly 14. Therefore, the feed box 11, the feed cover 12, the support column 13 and the feeding assembly 14 together constitute a feeding mechanism 1 for providing raw materials for tire casting.

[0079] like Figure 1-Figure 5 , Fig.10The stirring mechanism 2 is arranged below the feeding mechanism 1 and is used to stir the ingredients in the feeding mechanism 1 evenly. The stirring mechanism 2 includes a stirring motor 21, a stirring shaft 22 and a stirring gear 23. Figure 5 A stirring motor 21 is arranged below the feeding box 11, which is a power component for rotating the stirring shaft 22. The stirring motor 21 can change the speed. Before pouring, the stirring motor 21 starts and drives the stirring shaft 22 to rotate rapidly, so that the ingredients in the feeding mechanism 1 are fully stirred. During the pouring process, if the feeding component 14 is pouring the mold component 6, the stirring motor 21 starts and drives the stirring shaft 22 to rotate slowly. If the feeding component 14 is not pouring the mold component 6, and the mold component 6 is being driven by the working mechanism 4 to rotate to the next position, the stirring motor 21 starts and drives the stirring shaft 22 to rotate rapidly, thereby the stirring motor 21 drives the stirring shaft 22 to rotate rapidly. The dynamic stirring shaft 22 performs fast and slow speed alternation operation, which effectively improves product quality, prevents the mixture in the feed box 11 from being stirred too slowly and insufficiently, and prevents the mixture in the feed box 11 from being stirred too quickly and for too long and excessively. The top of the stirring motor 21 is movably connected to the stirring shaft 22, and the outer wall of the stirring shaft 22 located inside the feed box 11 is fixedly connected with stirring blades, which effectively stirs and mixes the ingredients in the feed box 11, and the outer wall of the stirring shaft 22 located outside the feed box 11 is fixedly sleeved with a stirring gear 23, and the edge of the stirring gear 23 is provided with a tooth groove, which can provide conditions for the meshing of the stirring gear 23 and the lower gear 33.

[0080] like Figure 1-Figure 5 , Fig.10 The fixing mechanism 3 is arranged on one side of the stirring mechanism 2, and is used to transmit the rotational force of the stirring mechanism 2 to the rotating ring 51, so that the rotating ring 51 drives the moving component 7 and the movable component 8 to rotate. The fixing mechanism 3 includes a fixing column 31, a fixing shaft 32, a lower gear 33 and an upper gear 34. Figure 5A fixed column 31 is arranged between the stirring mechanism 2 and the rotating ring 51, and the fixed column 31 is made of a material with high density and heavy quality, which can provide stable support for the fixed shaft 32, the lower gear 33 and the lower gear 33. One end of the fixed shaft 32 is movably sleeved on the top of the fixed column 31, and the lower half of the fixed shaft 32 is fixedly sleeved with the lower gear 33. The edge of the lower gear 33 is fixedly connected with a plurality of tooth blocks, and the lower gear 33 is meshed with the stirring gear 23 through the tooth blocks. The tooth blocks of the lower gear 33 are provided with a circle. When the stirring gear 23 rotates, it can bring The movable lower gear 33 rotates synchronously, thereby driving the fixed shaft 32 and the components thereon to rotate on the fixed column 31. The upper half of the fixed shaft 32 is fixedly sleeved with an upper gear 34. The edge of the upper gear 34 is fixedly connected with a tooth block, and the upper gear 34 is meshed with the rotating ring 51 through the tooth block. The tooth block of the upper gear 34 is provided with three-quarters of a circle. When the upper gear 34 rotates, if the upper gear 34 is meshed with the rotating ring 51, the rotating ring 51 can be driven to rotate synchronously. If the upper gear 34 is not meshed with the rotating ring 51, the rotating ring 51 will not be driven to rotate synchronously.

[0081] like Fig.10 The rotating ring 51 is annular, and the edge of the rotating ring 51 extends out of the rotating table 43 to facilitate the engagement of the rotating ring 51 with the upper gear 34. The edge of the rotating ring 51 is provided with a tooth groove to provide conditions for the engagement of the rotating ring 51 with the upper gear 34.

[0082] Embodiment 3, based on embodiment 2, Figure 2-Figure 3 , Figure 7-Figure 8 , Figure 15-19 The movable component 8 also includes a deformation bag 82, an air valve 83, an isolation member 84 and a movable member 9, such as Figure 15-16The movable plate 81 has an active cavity inside, and the movable plate 81 is sleeved with the deformation capsule 82 through the active cavity. The top and bottom of the middle part of the deformation capsule 82 are fixedly connected to the wall of the active cavity of the movable plate 81, and the two ends of the deformation capsule 82 are not fixedly connected to the wall of the active cavity of the movable plate 81. The deformation capsule 82 is made of a deformable material, and the deformation capsule 82 can be filled with gas. When there is only a small amount of gas in the deformation capsule 82, the deformation capsule 82 is in a contracted state, that is, the two ends of the deformation capsule 82 are toward The middle part of the deformation capsule 82 contracts, so that the deformation capsule 82 does not completely fill the active cavity. When there is a large amount of gas in the deformation capsule 82, the deformation capsule 82 is in an expanded state, that is, the two ends of the deformation capsule 82 are in contact with the two end walls of the active cavity, so that the deformation capsule 82 completely fills the active cavity. The air valve 83 is located at the top of the deformation capsule 82, and one end of the air valve 83 is fixedly connected to the inside of the deformation capsule 82, and the other end of the deformation capsule 82 passes through the active plate 81. The air valve 83 can be used to both supply air to the deformation capsule 82 and to fill the active cavity. 2 is filled with hot gas, thereby heating the mixture liquid surface, realizing the escape of air in the mixture, further eliminating bubbles, and discharging the gas in the deformation bag 82, providing a space for the downward movement of the movable member 9. The isolation member 84 is arranged in the deformation bag 82, and the isolation member 84 is in a T-shape. The isolation member 84 has three branches, one of which is fixedly sleeved with the bottom end wall of the deformation bag 82, and the outer wall of the branch extending out of the deformation bag 82 is fixedly sleeved with the inside of the movable plate 81, so that the movable member 9 can easily penetrate into the deformation bag 82 without affecting the gas storage of the deformation bag 82. The other two branches of the isolation member 84 are fixedly connected with the two end walls of the deformation bag 82, and a contraction spring is arranged in the branch pipe. When the gas volume in the deformation bag 82 is small, the contraction spring plays a role and drives the deformation bag 82 to contract. There are a number of isolation members 84, and a number of isolation members 84 are evenly arranged around the movable plate 81, thereby providing convenience for the arrangement of the movable member 9.

[0083] like Figure 15-19 The movable plate 81 is provided with a movable member 9 inside for eliminating bubbles in the mixture and promoting uniform dispersion of the mixture. The movable member 9 includes a movable block 91 and a movable rope 92. Figure 18-19 A movable groove is provided at the bottom end of the movable plate 81, and the movable block 91 can be completely sleeved in the movable groove of the movable plate 81. The movable groove of the movable plate 81 is connected to the isolation member 84. Two movable ropes 92 are fixedly connected to the top of the movable block 91, and the movable rope 92 passes through the isolation member 84 and is fixedly connected to one end wall of the deformation bag 82. When the deformation bag 82 shrinks, the movable block 91 moves downward under the drive of the movable rope 92, thereby moving out of the movable groove of the movable plate 81. At this time, the rotation of the movable plate 81 can enable the movable member 9 to slowly stir the top surface of the mixture, which not only eliminates the bubbles in the mixture, but also improves the uniformity of the flow of the mixture. When the deformation bag 82 expands, the movable block 91 moves upward under the drive of the movable rope 92, thereby moving into the movable groove of the movable plate 81. At this time, the movable member 9 is prevented from affecting the molding of the tire, thereby improving the molding quality of the product.

[0084] The working principle of the method of the present invention is as follows:

[0085] Before pouring, several ingredients are first fed into the feed box 11 through the connecting pipe on the feed cover 12, and then the stirring motor 21 is started to make the stirring shaft 22 drive the stirring blade to rotate rapidly to stir and mix to form a polyurethane mixture. When the stirring is completed, the stirring motor 21 stops working.

[0086] When pouring, first start the rotating motor assembly 42 to move a pouring mechanism 5 on the rotating table 43 to the pouring position, then control the telescopic member 142 to extend, so that the feed pipe 143 is inserted into the central cavity of the mold assembly 6, and then the feeding assembly 14 is opened to allow the mixture in the feed box 11 to be discharged into the central cavity of the mold assembly 6, and then the mixture is injected into the bottom of the pouring cavity through the feed hole. As the amount of the mixture continues to increase, until the pouring cavity of the mold assembly 6 is completely filled, at the same time, the feeding assembly 14 can flexibly adjust the length according to the liquid level of the mixture in the central cavity. Thereby reducing the falling distance of the mixture, shortening the contact time between the mixture and the air, and reducing the amount of air mixed in the mixture. In this process, since the movable component 8 is initially located at the inner bottom end of the casting cavity under the control of the movable component 7, the initial spatial volume of the casting cavity of the mold component 6 can be reduced, thereby reducing the amount of air mixed in the mixture. Then, according to the flow rate of the mixture, the hydraulic cylinder 71 synchronously controls the movement of the movable component 72, thereby driving the movable component 8 to move upward, and realizing that the bottom end of the movable component 8 always maintains a very short distance from the liquid surface of the mixture, so that the liquid surface of the mixture can be continuously raised. During the process, the bottom end of the movable component 8 is slightly shaken and rubbed, which effectively eliminates bubbles in the mixture and discharges the air in the mixture in time to prevent the existence of bubbles from causing small holes inside the molded tire, thereby improving product quality. At the same time, the stirring motor 21 is started to drive the stirring shaft 22 to rotate slowly. Since the stirring gear 23 is meshed with the lower gear 33, and the upper gear 34 is meshed with the rotating ring 51, the rotating ring 51 is driven to rotate slowly, thereby causing the movable component 8 to rotate slowly in the casting cavity during the upward movement, so that the bottom end of the movable component 8 can fully rub the liquid surface of the mixture to proceed. The bubbles in the mixture are eliminated in one step, and the air in the mixture is discharged in time. At the same time, the rotating movable component 8 can provide thrust for the mixture to flow from the inside to the outside of the pouring cavity, fully improving the uniformity of the flow of the mixture. In addition, during pouring, the deformation bag 82 in the movable plate 81 is in a contracted state, so that the movable block 91 is in a state of extending out of the movable plate 81, and then the movable block 91 contacts with the top surface of the mixture. At this time, the rotation of the movable plate 81 can make the movable part 9 slowly stir the top surface of the mixture, which not only further eliminates the bubbles in the mixture, but also further improves the uniformity of the flow of the mixture.

[0087] When the movable component 8 moves to the top of the pouring cavity of the mold component 6, the pouring is completed. At this time, a hot air flow is introduced into the deformation bag 82 through the air valve 83, so that the deformation bag 82 expands and fills the movable cavity of the movable plate 81, which can not only heat the liquid surface of the mixture to achieve the escape of air in the mixture and further eliminate bubbles, but also enable the movable part 9 to move up and shrink in the movable plate 81, so as to prevent the movable part 9 from affecting the molding of the tire and improve the molding quality of the product. At the same time, the stirring gear 23 continues to rotate until the upper gear 34 rotates to a state where it is not engaged with the rotating ring 51 and then stops. After that, the feeding component 14 shrinks without inserting into the mold component 6, and the rotating motor component 42 rotates the rotating table 43 to move the pouring mechanism 5 away from the pouring position, and the next pouring mechanism 5 moves to the pouring position.

[0088] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pouring device for polyurethane tire processing, characterized in that: include: The pouring mechanism (5) is a main component for pouring and molding a tire. The pouring mechanism (5) comprises a rotating ring (51), a mold assembly (6), a moving assembly (7) and a movable assembly (8). The rotating ring (51) is movably sleeved on the outside of the mold assembly (6), and the moving assembly (7) is fixedly arranged on the top of the rotating ring (51). A central cavity is provided in the middle of the mold assembly (6), and a pouring cavity is provided inside the mold assembly (6) located outside the central cavity. The central cavity of the mold assembly (6) and the pouring cavity are connected via a feed hole. The movable assembly (8) is movably sleeved inside the pouring cavity of the mold assembly (6), and the top of the movable assembly (8) is connected to the moving assembly (7). During pouring, the mixture is first injected into the central cavity and then injected into the pouring cavity through the feed hole. According to the injection speed of the mixture, the moving assembly (7) controls the movable assembly (8) to move upward, and the bottom of the movable assembly (8) is always in a state of being in contact with the liquid surface of the mixture. A feeding mechanism (1) is used to provide raw materials for tire casting, the feeding mechanism (1) comprising a feeding box (11) and a feeding assembly (14), the feeding box (11) having a cylindrical cavity formed therein, the feeding assembly (14) being fixedly connected to one side of the feeding box (11), the feeding assembly (14) comprising a feeding pipe (141), a telescopic member (142) and a feeding pipe (143), the feeding pipe (141) being L-shaped, one end of the feeding pipe (141) being fixedly connected to the cylindrical cavity of the feeding box (11), and the end of the feeding pipe (141) being connected to the feeding pipe (143). The bottom end of the cylindrical cavity is flush, the other end of the feeding pipe (141) is fixedly sleeved with the upper end of the telescopic member (142), the lower end of the telescopic member (142) is fixedly sleeved with one end of the feeding pipe (143), and the other end of the feeding pipe (143) is movably sleeved with the central cavity of the mold assembly (6). The telescopic member (142) is hydraulically controlled to be retractable to achieve a change in length, thereby changing the position of the feeding pipe (143), so that the feeding assembly (14) can feed the mold assembly (6) in a directional manner, and the feeding height is adjustable, thereby achieving flexible adjustment of the raw material injection position; The movable component (8) is a main component for eliminating bubbles, and the movable component (8) comprises: A movable plate (81), the movable plate (81) being annular in shape and being movably sleeved in the casting cavity of the mold assembly (6), the bottom surface shape of the movable plate (81) being adapted to the shape of the tire, and the top surface shape of the movable plate (81) being adapted to the top of the casting cavity of the mold assembly (6), and when the movable plate (81) moves in the casting cavity, two sides of the movable plate (81) do not contact the wall surface of the casting cavity of the mold assembly (6); A deformation capsule (82), wherein an activity cavity is provided inside the movable plate (81), and the movable plate (81) is sleeved with the deformation capsule (82) through the activity cavity, the top and bottom ends of the middle portion of the deformation capsule (82) are fixedly connected to the wall surface of the activity cavity of the movable plate (81), and the two ends of the deformation capsule (82) are not fixedly connected to the wall surface of the activity cavity of the movable plate (81), the deformation capsule (82) is made of a deformable material, and the deformation capsule (82) can be filled with gas; An air valve (83), the air valve (83) being located at the top end of the deformation bag (82), and one end of the air valve (83) being fixedly connected to the interior of the deformation bag (82), and the other end of the deformation bag (82) passing through the movable plate (81); An isolating member (84), the isolating member (84) being arranged in the deformation bag (82), and the isolating member (84) being in a T-shape, the isolating member (84) having three branch pipes, one branch pipe of the isolating member (84) being fixedly sleeved with the bottom end wall surface of the deformation bag (82), and the outer wall of the branch pipe extending out of the deformation bag (82) being fixedly sleeved with the inside of the movable plate (81), the other two branch pipes of the isolating member (84) being fixedly connected with the end walls of the deformation bag (82), and contraction springs being arranged in the branch pipes, the number of the isolating members (84) being several, and the several isolating members (84) being evenly arranged around the movable plate (81); A movable part (9), wherein the movable plate (81) is provided with a movable part (9) inside, and is used to eliminate bubbles in the mixture and promote uniform dispersion of the mixture; The movable part (9) comprises: A movable block (91), wherein a movable groove is provided at the bottom end of the movable plate (81), and the movable block (91) can be completely sleeved in the movable groove of the movable plate (81); A movable rope (92), the movable groove of the movable plate (81) is connected to the isolation piece (84), the top end of the movable block (91) is fixedly connected to two movable ropes (92), the movable ropes (92) pass through the isolation piece (84) and are fixedly connected to a wall surface at one end of the deformation bag (82).

2. The pouring device for polyurethane tire processing according to claim 1, characterized in that: The feeding mechanism (1) further comprises: A feed cover (12), the top of the feed box (11) being movably clamped with the feed cover (12), and the top of the feed cover (12) being fixedly connected to four connecting pipes; Support columns (13), wherein the four corners of the bottom end of the feed box (11) are fixedly connected to support columns (13).

3. The pouring device for polyurethane tire processing according to claim 2, characterized in that: It also includes a stirring mechanism (2) for stirring the several ingredients in the feeding mechanism (1) evenly, and the stirring mechanism (2) includes: A stirring motor (21), wherein a stirring motor (21) is disposed below the feed box (11), and the stirring motor (21) can change its rotation speed; A stirring shaft (22), wherein the top end of the stirring motor (21) is movably connected to the stirring shaft (22), and a stirring blade is fixedly connected to the outer wall of the stirring shaft (22) located inside the feed box (11); A stirring gear (23) is fixedly sleeved on the outer wall of the stirring shaft (22) located outside the feed box (11), and a tooth groove is provided on the edge of the stirring gear (23).

4. The pouring device for polyurethane tire processing according to claim 3, characterized in that: It also includes a fixing mechanism (3) for transmitting the rotational force of the stirring mechanism (2) to the rotating ring (51), wherein the fixing mechanism (3) includes: A fixed column (31), wherein the fixed column (31) is disposed between the stirring mechanism (2) and the rotating ring (51), and the fixed column (31) is made of a material with high density and heavy mass; A fixed shaft (32), one end of which is movably sleeved on the top end of the fixed column (31); A lower gear (33), wherein the lower half of the fixed shaft (32) is fixedly sleeved with the lower gear (33), the edge of the lower gear (33) is fixedly connected with a plurality of tooth blocks, and the lower gear (33) is meshed with the stirring gear (23) through the tooth blocks, and the tooth blocks of the lower gear (33) are provided with a circle; An upper gear (34), the upper half of the fixed shaft (32) being fixedly sleeved with the upper gear (34), the edge of the upper gear (34) being fixedly connected with a tooth block, and the upper gear (34) being meshed with the rotating ring (51) via the tooth block, and the tooth block of the upper gear (34) being provided with three quarters of a circle.

5. The pouring device for polyurethane tire processing according to claim 4, characterized in that: It also includes a working mechanism (4), the pouring mechanism (5) is arranged on the working mechanism (4) and is used to achieve continuous pouring, and the working mechanism (4) includes: A workbench (41), wherein the workbench (41) is located on one side of the feeding mechanism (1); A rotating motor assembly (42), wherein the lower half of the rotating motor assembly (42) is fixedly sleeved on the middle part of the workbench (41); A rotating platform (43), wherein the upper half of the rotating motor assembly (42) is fixedly sleeved to the rotating platform (43); A rolling ball (44) is provided, wherein a gap is provided between the workbench (41) and the rotating table (43), the bottom end of the rotating table (43) is movably engaged with the rolling ball (44), and the rolling ball (44) is fitted with the top end of the workbench (41).

6. The pouring device for polyurethane tire processing according to claim 5, characterized in that: The number of the pouring mechanisms (5) is greater than one, and the pouring mechanisms (5) are evenly arranged around the rotating table (43); the rotating ring (51) is annular, and the edge of the rotating ring (51) extends out of the rotating table (43); and the edge of the rotating ring (51) is provided with tooth grooves.

7. The pouring device for polyurethane tire processing according to claim 6, characterized in that: The central cavity of the mold assembly (6) is cylindrical, the number of feed holes of the mold assembly (6) is three, and the three feed holes are evenly arranged around the central cavity, the feed holes are connected with the bottom end of the central cavity and the bottom end of the casting cavity, the shape of the casting cavity is tire-shaped, and the mold assembly (6) comprises: A lower mold (61), wherein the lower mold (61) is arranged on the top of the rotating table (43); An outer mold (62), wherein the top outer ring of the lower mold (61) is tightly fitted with the bottom end of the outer mold (62); An inner mold (63), wherein the inner ring at the top end of the lower mold (61) is tightly fitted with the bottom end of the inner mold (63); A clamping block (64), wherein the middle portion of the bottom end of the lower mold (61) is fixedly connected with the clamping block (64), a top groove is formed at the top end of the rotating table (43), and the rotating table (43) is movably clamped with the clamping block (64) through the top groove; The lower mold (61) and the outer mold (62) are fixed by threads via the fixing bolts (65), and the lower mold (61) and the inner mold (63) are fixed by threads via the fixing bolts (65).

8. The pouring device for polyurethane tire processing according to claim 7, characterized in that: The number of the moving components (7) is two, and the two moving components (7) are evenly arranged around the rotating ring (51) to provide power for the movable component (8) to move up and down in the casting cavity. The moving components (7) include: A hydraulic cylinder (71), wherein the bottom end of the hydraulic cylinder (71) is fixedly connected to the top end of the rotating ring (51), and the upward movement speed of the hydraulic cylinder (71) is the same as the upward movement speed of the mixture in the casting cavity of the mold assembly (6); A moving member (72), the moving member (72) being in the shape of two U-shaped sections of unequal lengths, one section of the moving member (72) being movably sleeved with the top end of the hydraulic cylinder (71), and the outer wall of the other section of the moving member (72) being provided with a threaded groove; A fixing member (73), wherein the bottom end of the fixing member (73) is fixedly connected to the top end of the movable component (8), and a threaded groove is formed on the outer wall of the fixing member (73); A spiral member (74), one end of the spiral member (74) being movably connected to the thread groove of the movable member (72), and the other end of the spiral member (74) being movably connected to the thread groove of the fixed member (73).

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