Liquid silica gel injection machine

Abstract

The utility model relates to the technical field of silica gel product production, in particular to a liquid silica gel injection machine. The utility model provides a liquid silica gel injection machine capable of quickly switching and replacing an injection tube, which comprises a base, a mixing cylinder, a mounting cylinder, heating tubes, a conveying tube, a mounting shell, the injection tube, a draw-off pump, a switching mechanism and the like, the base is fixedly connected with the mounting cylinder, the mounting cylinder is fixedly connected with the mixing cylinder, the mounting cylinder is fixedly connected with the heating tubes which are distributed in the circumferential direction, and the heating tubes are fixedly connected with the draw-off pump. The mixing cylinder is communicated and fixedly connected with a material conveying pipe and a mounting shell, the mounting shell is communicated and slidably connected with paired injection pipes, the mixing cylinder is fixedly connected with a draw-off pump, and a switching mechanism is arranged on the mounting shell. According to the liquid silica gel injection machine, by means of the baffle, the first motor and other components, after one injection pipe is blocked, the other injection pipe can be rapidly switched to be used, so that the injection pipe does not need to be dredged or replaced without shutdown, and the working efficiency of the liquid silica gel injection machine and the use experience of a user are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone product production, in particular to a liquid silicone injection machine. Background Art

[0002] Liquid silicone rubber, also known as addition-type silicone rubber, is a two-component, room-temperature-vulcanizing silicone rubber primarily composed of a base rubber, a crosslinker, a catalyst, fillers, and additives. Liquid silicone exhibits excellent fluidity before curing, facilitating the casting of complex shapes. Consequently, it is widely used in a variety of applications, including mold manufacturing, craft replication, electronic potting, medical devices, baby products, and kitchen appliances.

[0003] In the patent with publication number CN208428566U, a new liquid silicone injection molding machine is disclosed, which includes a base box and an injection molding table. The injection molding table is located above the base box. A silicone extrusion box is provided on one side above the injection molding table. A push plate is provided inside the silicone extrusion box. One side of the push plate is movably connected to a telescopic push rod. One side of the telescopic push rod is fixedly connected to motor No. 1, and motor No. 1 is located on the outside of the silicone extrusion box. A feed barrel is connected to the pipe above the silicone extrusion box, and one side of the silicone extrusion box is fixedly connected to an injection pipe. The utility model can preheat the silicone by the electric heating sleeve, which can effectively improve the speed of the subsequent silicone heating injection molding. The silicone can be stirred by the spiral shaft, spiral blades and No. 2 motor, so that the silicone is stirred evenly and automatically mixed, and automatic feeding and stirring are effectively realized. However, when the silicone injection molding machine is not in use, the silicone in the injection pipe is very likely to solidify, which will cause the pipe to be blocked and affect subsequent use. Therefore, the pipe needs to be replaced and unblocked when it is used for the second time. However, the disassembly and replacement of the pipe of this silicone injection molding machine is very cumbersome and complicated, which will have a great impact on the working efficiency of the machine.

[0004] Based on the above situation, the utility model proposes a liquid silicone injection machine that can quickly switch and replace injection tubes. Summary of the Invention

[0005] In order to overcome the shortcomings of existing silicone injection molding machines that the silicone in the injection pipe is easily solidified and causes blockage when not in use, and the disassembly and replacement of the pipe is very cumbersome and complicated, which will have a great impact on the working efficiency of the machine, the utility model provides a liquid silicone injection machine that can quickly switch and replace the injection tube.

[0006] A liquid silicone injection machine includes a base, a mixing barrel, a mounting barrel, a heating pipe, a feed pipe, a mounting shell, an injection pipe, an extraction pump and a switching mechanism. The base is fixedly connected to the mounting barrel, the mounting barrel is fixedly connected to the mixing barrel, the mounting barrel is fixedly connected to circumferentially distributed heating pipes, the mixing barrel is connected to and fixedly connected to the feed pipe, the mixing barrel is connected to and fixedly connected to the mounting shell, the mounting shell is connected to and slidably connected to a pair of injection pipes, the mixing barrel is fixedly connected to the extraction pump, and the mounting shell is provided with a switching mechanism.

[0007] As an improvement to the above solution, the material delivery pipe is Y-shaped.

[0008] As an improvement to the above scheme, the switching mechanism includes a fixed plate, a first rotating shaft, a guide plate, a first motor, a mounting rod and a baffle. The mounting shell is fixedly connected to the fixed plate, the fixed plate is rotatably connected to the first rotating shaft, the first rotating shaft is fixedly connected to the guide plate, the fixed plate is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the first rotating shaft through a coupling, the mounting shell is slidably connected to a pair of baffles, the baffles are fixedly connected to the mounting rod, and the mounting rod is movably connected to the guide plate.

[0009] As an improvement to the above scheme, it also includes a mounting plate, a second rotating shaft, a first gear, a second motor, a stirring frame, a second gear and a ring gear. The mixing drum is fixedly connected to the mounting plate, the mounting plate is rotatably connected to the second rotating shaft, the second rotating shaft is fixedly connected to the first gear, the mounting plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the second rotating shaft through a coupling, the mixing drum is rotatably connected to a pair of stirring frames, the stirring frame is fixedly connected to the second gear, the mixing drum is rotatably connected to the ring gear, the ring gear is meshed with the first gear, and the ring gear is meshed with the second gear.

[0010] As an improvement to the above scheme, it also includes a mounting block, a fixed sleeve, a clamping block and a spring. The injection tube is fixedly connected to the mounting block, the mounting block is provided with a clamping groove, the mounting shell is fixedly connected to a pair of fixed sleeves, the mounting block is slidably connected to the fixed sleeve, the fixed sleeve is slidably connected to the clamping block, a spring is fixed between the fixed sleeve and the clamping block, and the clamping block is squeezed and fitted with the mounting block.

[0011] As an improvement to the above solution, the clamping block is provided with an inclined surface.

[0012] Beneficial effects: 1. The utility model uses components such as a baffle and a first motor to quickly switch to another injection tube for use after one injection tube is blocked, thereby eliminating the need to shut down the machine and clear or replace the injection tube, thereby improving the working efficiency of the liquid silicone injection machine and the user experience.

[0013] 2. The utility model can heat and stir the liquid silicone in the mixing barrel through components such as the heating tube and the stirring frame, thereby preventing the silicone from solidifying and affecting the injection rate of the machine, thereby improving the working efficiency of the liquid silicone injection machine and the user experience.

[0014] 3. The utility model enables workers to quickly disassemble and replace the injection tube through components such as blocks and springs, which reduces the labor intensity of workers and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a three-dimensional structural diagram of the base, mixing cylinder, installation cylinder and other components of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional structural diagram of the fixed plate, the first rotating shaft, the guide plate and other components of the utility model.

[0018] Figure 4 It is a three-dimensional cross-sectional structural diagram of the mounting plate, the second rotating shaft, the first gear and other components of the utility model.

[0019] Figure 5 It is a three-dimensional structural diagram of the components such as the mounting block, the fixing sleeve and the clamping block of the utility model.

[0020] Figure 6 It is a partial three-dimensional cross-sectional structural diagram of the fixing sleeve, the clamping block, the spring and other components of the utility model.

[0021] The numbers in the figure are: 1. Base, 2. Mixing cylinder, 3. Mounting cylinder, 4. Heating tube, 5. Feed pipe, 6. Mounting shell, 7. Injection tube, 8. Extraction pump, 9. Fixed plate, 10. First rotating shaft, 11. Guide plate, 12. First motor, 13. Mounting rod, 14. Baffle, 15. Mounting plate, 16. Second rotating shaft, 17. First gear, 18. Second motor, 19. Stirring frame, 20. Second gear, 21. Ring gear, 22. Mounting block, 23. Fixed sleeve, 24. Block, 25. Spring. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention. Example

[0023] A liquid silicone injection machine, such as Figure 1-Figure 3As shown, it includes a base 1, a mixing cylinder 2, a mounting cylinder 3, a heating pipe 4, a feed pipe 5, a mounting shell 6, an injection tube 7, an extraction pump 8 and a switching mechanism. The mounting cylinder 3 is fixedly connected to the upper part of the base 1, the mixing cylinder 2 is fixedly connected inside the mounting cylinder 3, the circumferentially distributed heating tubes 4 are fixedly connected inside the mounting cylinder 3, the right side of the mixing cylinder 2 is connected and fixedly connected to the feed pipe 5, the left side of the mixing cylinder 2 is connected and fixedly connected to the mounting shell 6, the front and rear parts of the left side of the mounting shell 6 are connected and slidably connected with the injection tube 7, the left side of the mixing cylinder 2 is fixedly connected to the extraction pump 8, and a switching mechanism is provided on the mounting shell 6.

[0024] like Figure 3 As shown, the material delivery pipe 5 is Y-shaped.

[0025] like Figure 1-Figure 3 As shown, the switching mechanism includes a fixed plate 9, a first rotating shaft 10, a guide plate 11, a first motor 12, a mounting rod 13 and a baffle 14. The fixed plate 9 is fixedly connected to the upper left side of the mounting shell 6, the upper part of the fixed plate 9 is rotatably connected to the first rotating shaft 10, the right end of the first rotating shaft 10 is fixedly connected to the guide plate 11, the left side of the fixed plate 9 is fixedly connected to the first motor 12, and the output end of the first motor 12 is fixedly connected to the first rotating shaft 10 through a coupling. The baffle 14 is slidably connected to the front and rear sides of the interior of the mounting shell 6, the mounting rod 13 is fixedly connected to the upper left side of the baffle 14, and the mounting rod 13 is movably connected to the guide plate 11.

[0026] When workers need to manufacture products by injecting liquid silicone, they can first connect the feed pipe 5 with the external feed device to deliver liquid silicone into the mixing barrel 2. Then the workers can start the extraction pump 8 to allow the liquid silicone in the mixing barrel 2 to pass through the mounting shell 6 and the injection tube 7 at the rear and be injected into the product mold. After the injection is completed, just wait for the liquid silicone in the mold to cool down. After stopping the injection, liquid silicone will remain in the injection tube 7. If it is not used for a long time, the liquid silicone in the injection tube 7 at the rear will cool down and cause blockage, thereby affecting its use. At this time, the worker can start the first motor 12 and drive the first rotating shaft 10 and the guide plate 11 to rotate forward, and the guide plate The forward rotation of 11 will cause the rear mounting rod 13 and baffle 14 to move downward and block the feed port of the rear injection tube 7. At the same time, the front mounting rod 13 and baffle 14 will move upward, thereby connecting the front injection tube 7 with the mounting shell 6. At this time, the injection work can be continued through the front injection tube 7, and the worker can also clear or replace the blocked injection tube 7 at the same time. Similarly, if the front injection tube 7 is blocked, the first motor 12 can be used to drive the first rotating shaft 10 and the guide plate 11 to rotate in the opposite direction, so that the injection tube 7 can be flexibly switched, so there is no need to stop the machine and clear or replace the injection tube 7, thereby avoiding affecting the working efficiency of the machine. Example

[0027] On the basis of Example 1, Figure 4As shown, it also includes a mounting plate 15, a second rotating shaft 16, a first gear 17, a second motor 18, a stirring frame 19, a second gear 20 and a ring gear 21. The upper right side of the mixing drum 2 is fixedly connected to the mounting plate 15, and the lower part of the mounting plate 15 is rotatably connected to the second rotating shaft 16. The left end of the second rotating shaft 16 is fixedly connected to the first gear 17. The right side of the mounting plate 15 is fixedly connected to the second motor 18. The output end of the second motor 18 is fixedly connected to the second rotating shaft 16 through a coupling. The front and rear sides of the mixing drum 2 are rotatably connected to the stirring frame 19, and the right end of the stirring frame 19 is fixedly connected to the second gear 20. The right side of the mixing drum 2 is rotatably connected to the ring gear 21, which meshes with the first gear 17 and the ring gear 21 meshes with the second gear 20.

[0028] After the external feeding device injects the liquid silicone into the mixing drum 2 through the feeding pipe 5, it is necessary to start the heating tube 4 and the second motor 18. The heating tube 4 will heat and keep the liquid silicone in the mixing drum 2 warm, and the second motor 18 will drive the second rotating shaft 16 and the first gear 17 to rotate, thereby driving the ring gear 21 to rotate. The rotation of the ring gear 21 will drive the front and rear second gears 20 and the stirring frame 19 to rotate, thereby heating and stirring the liquid silicone in the mixing drum 2 to prevent the silicone from solidifying and affecting the injection rate of the machine.

[0029] like Figure 5 and Figure 6 As shown, it also includes a mounting block 22, a fixing sleeve 23, a clamping block 24 and a spring 25. The bottom of the injection tube 7 is fixedly connected to the mounting block 22, and a clamping slot is provided at the bottom of the mounting block 22. The front and rear parts of the left side of the mounting shell 6 are fixedly connected to the fixing sleeve 23. The mounting block 22 is slidably connected to the adjacent fixing sleeve 23. The middle part of the fixing sleeve 23 is slidably connected to the clamping block 24. A spring 25 is fixed between the fixing sleeve 23 and the clamping block 24. The clamping block 24 is squeezed and fitted with the adjacent mounting block 22.

[0030] like Figure 6 As shown, the left and right sides of the top of the block 24 are both provided with inclined surfaces.

[0031] When the syringe 7 needs to be removed from the mounting shell 6 for unblocking and replacement, the syringe 7 and the mounting block 22 only need to be pulled out to the left. The mounting block 22 will first contact and squeeze the block 24 when it moves to the left, and the block 24 will move downward, and the spring 25 will be compressed immediately. When the mounting block 22 continues to move to the left and separates from the block 24, the block 24 will move upward and reset under the action of the spring 25. Similarly, when the worker moves the unblocked syringe 7 and the mounting block 22 to the right and resets them, the mounting block 22 will still first contact and squeeze the block 24, and the block 24 will move downward, and the spring 25 will be compressed immediately. When the mounting block 22 continues to move to the right until the slot is aligned with the block 24, the block 24 will move upward and reset under the action of the spring 25 and limit the mounting block 22 and the syringe 7. This allows workers to quickly disassemble and replace the syringe 7, reducing the labor intensity of workers.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A liquid silicone injection machine, comprising a base (1), a mixing barrel (2), a mounting barrel (3), a heating tube (4), a feed tube (5), a mounting shell (6), an injection tube (7) and an extraction pump (8), wherein the base (1) is fixedly connected to the mounting barrel (3), the mounting barrel (3) is fixedly connected to the mixing barrel (2), the mounting barrel (3) is fixedly connected to circumferentially distributed heating tubes (4), the mixing barrel (2) is connected to and fixedly connected to the feed tube (5), the mixing barrel (2) is connected to and fixedly connected to the mounting shell (6), the mounting shell (6) is connected to and slidably connected to a pair of injection tubes (7), and the mixing barrel (2) is fixedly connected to the extraction pump (8), characterized in that: A switching mechanism is also included, and the mounting shell (6) is provided with the switching mechanism.

2. A liquid silicone injection machine according to claim 1, characterized in that: The material delivery pipe (5) is Y-shaped.

3. A liquid silicone injection machine according to claim 2, characterized in that: The switching mechanism includes a fixed plate (9), a first rotating shaft (10), a guide plate (11), a first motor (12), a mounting rod (13) and a baffle (14); the mounting shell (6) is fixedly connected to the fixed plate (9); the fixed plate (9) is rotatably connected to the first rotating shaft (10); the first rotating shaft (10) is fixedly connected to the guide plate (11); the fixed plate (9) is fixedly connected to the first motor (12); the output end of the first motor (12) is fixedly connected to the first rotating shaft (10) through a coupling; the mounting shell (6) is slidably connected to a pair of baffles (14); the baffles (14) are fixedly connected to the mounting rod (13); and the mounting rod (13) is movably connected to the guide plate (11).

4. A liquid silicone injection machine according to claim 3, characterized in that: The mixing drum (2) further comprises a mounting plate (15), a second rotating shaft (16), a first gear (17), a second motor (18), a stirring frame (19), a second gear (20) and a ring gear (21). The mixing drum (2) is fixedly connected to the mounting plate (15). The mounting plate (15) is rotatably connected to the second rotating shaft (16). The second rotating shaft (16) is fixedly connected to the first gear (17). The mounting plate (15) is fixedly connected to the second motor (18). The output end of the second motor (18) is fixedly connected to the second rotating shaft (16) via a coupling. The mixing drum (2) is rotatably connected to a pair of stirring frames (19). The stirring frames (19) are fixedly connected to the second gear (20). The mixing drum (2) is rotatably connected to the ring gear (21). The ring gear (21) is meshed with the first gear (17), and the ring gear (21) is meshed with the second gear (20).

5. The liquid silicone injection machine according to claim 4, characterized in that: The invention also includes a mounting block (22), a fixing sleeve (23), a clamping block (24) and a spring (25). The injection tube (7) is fixedly connected to the mounting block (22). The mounting block (22) is provided with a clamping groove. The mounting shell (6) is fixedly connected to a pair of fixing sleeves (23). The mounting block (22) is slidably connected to the fixing sleeve (23). The fixing sleeve (23) is slidably connected to the clamping block (24). A spring (25) is fixedly connected between the fixing sleeve (23) and the clamping block (24). The clamping block (24) is extruded and fitted with the mounting block (22).

6. The liquid silicone injection machine according to claim 5, characterized in that: The clamping block (24) is provided with an inclined surface.

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