Glue injection equipment for polyurethane wheel
By designing the polyurethane wheel glue injection equipment, using the hose output tube and the rubber conveying pump to transport the glue from bottom to top, and reducing bubble residues through stirring and jet treatment, the problem of bubble residues during the polyurethane wheel glue injection process is solved and the molding quality is improved.
Patent Information
- Application Number
- CN202510039337.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-03-18
AI Technical Summary
During the glue injection process of polyurethane wheels, since the polyurethane is poured with more bubbles, there are more bubbles left in the polyurethane during molding, which affects the molding quality of the wheel.
A polyurethane wheel injection equipment is designed, which includes a placing table, a rubber feeding barrel, and a rubber feeding assembly. By setting up a hose, a rubber feeding tube and a rubber feeding pump, the rubber is transported from bottom to top to prevent the rubber from splashing and bringing in too many bubbles, and bubble residues are reduced through stirring and jet treatment.
It effectively reduces the problem of bubbles remaining in the tires and improves the molding quality of polyurethane wheels.
Smart Images
Figure CN119636141A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of polyurethane wheels, in particular to glue injection equipment for polyurethane wheels. Background Art
[0002] Compared with ordinary rubber tires, polyurethane wheels have the advantages of long service life, high temperature resistance, no odor, better wear resistance and tear resistance, and less prone to tread peeling. Therefore, they are often used in forklifts, factories and other indoor vehicles.
[0003] A common production process of polyurethane wheels includes the following steps: step 1 preparing a wheel mold, step 2 pouring polyurethane material into the mold, step 3 a worker stirring the polyurethane with a stirring rod to allow bubbles to concentrate on the upper surface of the polyurethane, step 4 heating the surface of the polyurethane to burst the bubbles on the surface of the polyurethane, and step 5 cooling the polyurethane into shape; finally, a tightly integrated polyurethane wheel is formed.
[0004] Based on the above technology, there is still a problem that when injecting glue, since many bubbles are entrained when the polyurethane is poured, many bubbles remain in the polyurethane during molding, which affects the final molding quality of the wheel.
[0005] Based on this, the present invention designs a polyurethane wheel glue injection device to solve the above problems. Summary of the invention
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a glue injection device for polyurethane wheels, comprising a placement table, a glue delivery barrel, and a glue injection component, wherein a molding die is arranged on the placement table, and the glue injection component comprises a glue outlet pipe, a glue delivery pipe, and a glue delivery pump, a glue outlet is opened on the placement table, the glue outlet pipe is located in the glue outlet, the glue delivery pipe is connected between the glue outlet pipe and the glue delivery pump, a connecting pipe is arranged between the glue delivery pump and the glue delivery barrel, a fixing plate is fixedly arranged in the glue outlet pipe, a fixing rod is vertically fixedly arranged on the fixing plate, a baffle is fixedly arranged on the fixing plate, and a lifting component for driving the glue outlet pipe to rise and fall is arranged on the placement table, and when the baffle is upwardly separated from the glue outlet, the glue delivery pump delivers glue at this time.
[0007] By adopting the above technical solution, the rubber is transported from bottom to top, which prevents the rubber from splashing and bringing in too many bubbles, thereby achieving the effect of reducing the bubbles remaining in the tire.
[0008] Preferably, a placement ring is fixedly provided in the glue outlet, and the baffle is placed on the placement ring. When the baffle is upwardly separated from the glue outlet, the glue outlet tube contacts the placement ring. When the baffle is covered on the placement ring, the glue outlet tube does not contact the placement ring.
[0009] By adopting the above technical solution, when glue injection is not performed, the baffle is allowed to abut against the placement ring, thereby further preventing glue from leaking from the glue outlet.
[0010] Preferably, the lifting assembly includes a first cylinder and a lifting plate, the placement platform is provided with an installation cavity, the first cylinder is vertically fixed in the installation cavity, the lifting plate is fixed on the telescopic shaft of the first cylinder, and the rubber outlet hose is fixed on the lifting plate.
[0011] By adopting the above technical solution, the first cylinder is driven to drive the lifting plate to move up and down, thereby driving the rubber outlet hose to move up and down.
[0012] Preferably, an air hole is provided on the glue outlet pipe, and when the baffle is placed on the placement ring, the air hole is communicated with the installation cavity, and at this time, the glue delivery pump performs back suction.
[0013] By adopting the above technical solution, when the baffle plate contacts the placement ring, the glue pump is driven to suck back the glue remaining in the glue outlet, and the air hole facilitates ventilation of the glue outlet pipe.
[0014] Preferably, a placement groove is provided on the placement table, and the lower side of the forming mold is placed in the placement groove.
[0015] By adopting the above technical solution, after the molding die is placed on the placement table, the placement groove can reduce glue leakage during glue injection.
[0016] Preferably, a pressing layer is fixedly arranged in the placement groove, and the pressing layer presses against the forming mold.
[0017] By adopting the above technical solution, when injecting glue, the pressing layer presses against the forming mold to further reduce glue leakage.
[0018] Preferably, a vertical plate is fixedly provided on the placement table, a horizontal plate is fixedly provided on the vertical plate, a second cylinder is provided on the horizontal plate, a movable plate is fixedly provided on the telescopic shaft of the second cylinder, a motor is fixedly provided on the movable plate, a connecting plate is fixedly provided on the rotating shaft of the motor, a plurality of stirring tubes are fixedly provided on the connecting plate, and after the glue is injected into the molding mold, the stirring tubes are inserted into the molding mold for slow stirring.
[0019] By adopting the above technical solution, after the glue is injected, the second cylinder is driven to move the movable plate downward, and the motor is driven at the same time to rotate the connecting plate at a low speed, so that the stirring tube slowly stirs the glue and allows excess bubbles to gather on the surface.
[0020] Preferably, a flame hole is opened on the stirring tube, a jet pipe is fixedly connected to the stirring tube, an ignition device is provided on the connecting plate, and after the stirring tube finishes stirring, combustible gas is introduced into the jet pipe, and the igniter ignites, so that the stirring tube is brought to the upper side of the forming mold with fire.
[0021] By adopting the above technical solution, after the stirring is completed, the igniter is turned on to allow the jet pipe to spray, burn the rubber surface, burst the bubbles, and thus reduce the bubbles remaining in the tire.
[0022] In summary, the present application has the following beneficial technical effects: the glue is transported from bottom to top, preventing the glue from splashing and bringing in too many bubbles, thereby achieving the effect of reducing the bubbles remaining in the tire. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0024] Figure 1 This is a schematic diagram of the structure in which the forming mold is placed on a placement table in this embodiment;
[0025] Figure 2 Schematic diagram of the overall structure of the placement table in this embodiment;
[0026] Figure 3 Schematic diagram of the installation structure of the rubber outlet hose in this embodiment;
[0027] Figure 4 This is a schematic diagram of the structure in which the baffle is located outside the glue outlet in this embodiment;
[0028] Figure 5 This is a schematic diagram of the structure of the rubber outlet pipe in this embodiment;
[0029] Figure 6 Schematic diagram of the structure of the stirring tube in this embodiment.
[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0031] 1. Placement table; 2. Glue delivery barrel; 3. Ignition device; 4. Forming mold; 5. Placement groove; 6. Tightening layer; 7. Glue outlet pipe; 8. Glue delivery pipe; 9. Glue delivery pump; 10. Glue outlet; 11. Fixed plate; 12. Fixed rod; 13. Baffle; 14. Placement ring; 15. Air hole; 16. First cylinder; 17. Lifting plate; 18. Installation cavity; 19. Vertical plate; 20. Horizontal plate; 21. Second cylinder; 22. Moving plate; 23. Motor; 24. Connecting plate; 25. Stirring tube; 26. Flame hole; 27. Jet tube. DETAILED DESCRIPTION
[0032] 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.
[0033] The following is combined with Figure 1-6 This application is described in further detail.
[0034] Reference Figure 1-Figure 5 A glue injection device for a polyurethane wheel includes a placement table 1, a glue delivery barrel 2, and a glue injection component. A molding die 4 is arranged on the placement table 1. A placement groove 5 is opened on the placement table 1. The lower side of the molding die 4 is placed in the placement groove 5. A pressing layer 6 is fixedly arranged in the placement groove 5. The pressing layer 6 in this embodiment is a rubber layer. The pressing layer 6 presses against the molding die 4. When the molding die 4 is injecting glue, the molding die 4 is located in the placement groove 5 to reduce glue leakage. The pressing layer 6 presses against the molding die 4 to further reduce glue leakage. After molding, the molding die 4 and the tire are taken out together, and then the tire is demolded.
[0035] Reference Figure 1-Figure 5 The glue injection assembly includes a glue outlet pipe 7, a glue delivery pipe 8, and a glue delivery pump 9. A glue outlet 10 is provided on the placement table 1. The glue outlet 10 is located in the molding die 4. The glue outlet pipe 7 is located in the glue outlet 10. The glue delivery pipe 8 is connected between the glue outlet pipe 7 and the glue delivery pump 9. A connecting pipe is provided between the glue delivery pump 9 and the glue delivery barrel 2. A fixing plate 11 is fixedly provided in the glue outlet pipe 7. A fixing rod 12 is vertically fixedly provided on the fixing plate 11. A baffle 13 is fixedly provided on the fixing plate 11.
[0036] Reference Figure 1-Figure 5A placement ring 14 is fixedly arranged in the glue outlet 10, and a baffle 13 is placed on the placement ring 14. After the glue is injected, the baffle 13 is allowed to contact the placement ring 14, which can further prevent the glue from leaking from the glue outlet 10. An air hole 15 is provided on the glue outlet pipe 7; a lifting component for driving the glue outlet pipe 7 to rise and fall is provided on the placement table 1, and the lifting component includes a first cylinder 16 and a lifting plate 17. An installation cavity 18 is provided on the placement table 1, and the first cylinder 16 is vertically fixedly arranged in the installation cavity 1 8, the lifting plate 17 is fixedly arranged on the telescopic shaft of the first cylinder 16, and the glue outlet pipe 7 is fixedly arranged on the lifting plate 17; when injecting glue, the first cylinder 16 is driven to make the lifting plate 17 rise, driving the glue outlet pipe 7 to move upward, and the lifting plate 17 stops moving upward when it contacts the lower surface of the placing ring 14. At this time, the baffle 13 is located outside the glue outlet 10, and the air hole 15 is located in the glue outlet 10. Then the infusion pump is driven to input the glue into the glue outlet pipe 7, and finally flows out from the glue outlet 10;
[0037] Reference Figure 1-Figure 5 After the glue flows out from the glue outlet 10, it gradually fills the molding mold 4 from bottom to top, avoiding excessive air from entering the glue to form bubbles due to splashing. At the same time, after the glue liquid continues to rise, it avoids excessive contact between the glue liquid injected subsequently and the air during injection, thereby achieving the effect of reducing the bubbles remaining in the tire.
[0038] Reference Figure 1-Figure 5 After the glue injection is completed, stop driving the infusion pump and drive the first cylinder 16 at the same time to lower the lifting plate 17. When the baffle 13 is placed on the placement ring 14, the lifting plate 17 stops moving downward. At this time, the air hole 15 is connected to the installation cavity 18. At this time, the glue pump 9 is driven to suck back the glue remaining in the glue outlet pipe 7 into the glue delivery barrel 2, reducing the glue remaining in the glue outlet pipe 7 and the glue outlet 10.
[0039] Reference Figure 1-Figure 6 A vertical plate 19 is fixedly arranged on the placing table 1, a horizontal plate 20 is fixedly arranged on the vertical plate 19, a second cylinder 21 is arranged on the horizontal plate 20, a movable plate 22 is fixedly arranged on the telescopic axis of the second cylinder 21, a motor 23 is fixedly arranged on the movable plate 22, the motor 23 is a servo motor, a connecting plate 24 is fixedly arranged on the rotating shaft of the motor 23, a plurality of stirring tubes 25 are fixedly arranged on the connecting plate 24; a ventilation pipe is connected to the stirring tube 25, a flame hole 26 is opened on the stirring tube 25, a jet pipe 27 is fixedly connected to the stirring tube 25, an ignition device 3 is arranged on the connecting plate 24, and the ignition device 3 in this embodiment is an electric igniter.
[0040] Reference Figure 1-Figure 6After the glue is injected, the second cylinder 21 is driven to move the movable plate 22 downward, and the motor 23 is driven at the same time to make the connecting plate 24 rotate forward and reverse at a low speed, so that the stirring tube 25 slowly stirs the glue to allow excess bubbles to gather on the surface; after the stirring tube 25 finishes stirring, the jet pipe 27 introduces combustible gas, and the ignition device 3 ignites, so that the stirring tube 25 brings the fire close to the upper side of the forming mold 4, burns the surface of the glue, and breaks the bubbles on the surface, thereby reducing the bubbles remaining in the tire.
[0041] The implementation principle of this embodiment is: when injecting glue, after placing the forming mold 4 in the placement groove 5, drive the first cylinder 16 to let the glue outlet pipe 7 rise, and after the baffle 13 is separated from the glue outlet 10, drive the infusion pump to transport the glue to the glue outlet pipe 7 and flow out through the glue outlet 10. After the glue flows out from the glue outlet 10, it gradually fills the forming mold 4 from bottom to top, avoiding excessive air from entering the glue to form bubbles due to splashing. At the same time, after the glue liquid continues to rise, it avoids excessive contact between the glue liquid injected subsequently and the air during injection, thereby achieving the effect of reducing the bubbles remaining in the tire.
[0042] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0043] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.
[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A polyurethane wheel glue injection device, characterized in that: The invention comprises a placing platform (1), a glue delivery barrel (2), and a glue injection assembly. The placing platform (1) is provided with a forming die (4). The glue injection assembly comprises a glue outlet pipe (7), a glue delivery pipe (8), and a glue delivery pump (9). The placing platform (1) is provided with a glue outlet (10). The glue outlet pipe (7) is located in the glue outlet (10). The glue delivery pipe (8) is connected between the glue outlet pipe (7) and the glue delivery pump (9). A connecting pipe is provided between the glue delivery pump (9) and the glue delivery barrel (2). A fixing plate (11) is fixedly provided in the glue outlet pipe (7). A fixing rod (12) is vertically fixedly provided on the fixing plate (11). A baffle plate (13) is fixedly provided on the fixing plate (11). A lifting assembly for driving the glue outlet pipe (7) to rise and fall is provided on the placing platform (1). When the baffle plate (13) is upwardly separated from the glue outlet (10), the glue delivery pump (9) delivers glue.
2. The polyurethane wheel glue injection equipment according to claim 1, characterized in that: A placement ring (14) is fixedly arranged in the glue outlet (10), and the baffle (13) is placed on the placement ring (14). When the baffle (13) is separated from the glue outlet (10) upward, the glue outlet pipe (7) is in contact with the placement ring (14); when the baffle (13) is covered on the placement ring (14), the glue outlet pipe (7) is not in contact with the placement ring (14).
3. The polyurethane wheel glue injection equipment according to claim 1, characterized in that: The lifting assembly comprises a first cylinder (16) and a lifting plate (17); a mounting cavity (18) is provided on the placement platform (1); the first cylinder (16) is vertically fixedly arranged in the mounting cavity (18); the lifting plate (17) is fixedly arranged on the telescopic shaft of the first cylinder (16); and the rubber outlet hose (7) is fixedly arranged on the lifting plate (17).
4. The polyurethane wheel glue injection equipment according to claim 3, characterized in that: The glue outlet pipe (7) is provided with an air hole (15). When the baffle (13) is placed on the placement ring (14), the air hole (15) is communicated with the installation cavity (18), and at this time, the glue delivery pump (9) performs back suction.
5. The polyurethane wheel glue injection equipment according to claim 1, characterized in that: The placement table (1) is provided with a placement groove (5), and the lower side of the forming mold (4) is placed in the placement groove (5).
6. The polyurethane wheel glue injection equipment according to claim 5, characterized in that: A pressing layer (6) is fixedly arranged in the placement groove (5), and the pressing layer (6) presses against the forming mold (4).
7. The polyurethane wheel glue injection equipment according to claim 1, characterized in that: A vertical plate (19) is fixedly arranged on the placement table (1), a horizontal plate (20) is fixedly arranged on the vertical plate (19), a second cylinder (21) is arranged on the horizontal plate (20), a moving plate (22) is fixedly arranged on the telescopic shaft of the second cylinder (21), a motor (23) is fixedly arranged on the moving plate (22), a connecting plate (24) is fixedly arranged on the rotating shaft of the motor (23), and a plurality of stirring tubes (25) are fixedly arranged on the connecting plate (24), and after the glue is injected into the molding mold (4), the stirring tubes (25) are inserted into the molding mold (4) for slow stirring.
8. The polyurethane wheel glue injection equipment according to claim 7, characterized in that: The stirring tube (25) is provided with a flame injection hole (26), the stirring tube (25) is fixedly connected with an injection pipe (27), and the connecting plate (24) is provided with an ignition device (3). After the stirring of the stirring tube (25) is completed, combustible gas is introduced into the injection pipe (27), and the igniter ignites, so that the stirring tube (25) is brought close to the upper side of the forming mold (4) with fire.