Automatic injection molding equipment for processing baby carriage tires

Abstract

The utility model relates to the technical field of baby carriage tire injection molding processing, and discloses automatic injection molding equipment for processing baby carriage tires, which comprises a rack and a mold closing chamber, an injection bin is arranged on one side of the rack, the left end of the injection bin is connected with a feeding pipe, a feeding assembly is connected above the feeding pipe, and the left end of the feeding pipe is connected with a glue melting pipe. The left end of the glue melting pipe penetrates through the side wall of the mold closing chamber to be connected with an injection nozzle assembly, the injection nozzle assembly comprises an injection nozzle body and a dredging rod, the dredging rod is slidably sleeved with the injection nozzle body, the side wall of the injection nozzle body communicates with a storage barrel, and external threads are arranged on the outer wall of the right end of the horizontal part of the storage barrel; according to the utility model, after one-time injection molding action is completed, molten materials can be blocked and prevented from being drawn, meanwhile, the pressure in the mold can be maintained, the injection molding quality is effectively improved, meanwhile, the possible blockage of the injection nozzle body can be conveniently and quickly dredged, the downtime is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding processing of baby carriage tires, and specifically relates to an automatic injection molding device for processing baby carriage tires. Background Technique

[0002] With the improvement of people's living standards and safety awareness, people pay more and more attention to the types and safety stability of baby carriage tires. Traditional baby carriage tires are mostly inflatable, with high production costs, complex processes and potential safety hazards. Therefore, injection-molded baby carriage tires have gradually replaced traditional baby carriage tires. This requires an injection molding device for processing baby carriage tires. To improve the quality and production efficiency of injection-molded baby carriage tires, we also need to automate and upgrade the injection molding device.

[0003] For example, the patent document CN218928438U discloses an injection molding machine that is convenient for maintenance, including an injection molding mechanism. The injection molding mechanism includes an injection molding tube for injection molding. The end of the injection molding tube of the injection molding mechanism is connected to a fixed mold mounting plate. The four corners of the fixed mold mounting plate are slidably connected with sliding rods. The end of the sliding rod away from the fixed mold mounting plate is slidably connected with a movable mold mounting plate. Both sides of the fixed mold mounting plate are detachably connected with connecting plates. The fixed mold mounting plate of the injection molding machine is inserted through the insertion blocks on both sides and limited at the limit slots of the fixed mold mounting plate. When maintaining the equipment and replacing the fixed mold mounting plate, only the connecting bolts on both sides need to be disassembled. However, there are still many deficiencies in this prior art. For example, it cannot avoid or reduce the blockage problem of the injection nozzle, nor can it quickly self-clean the injection nozzle when it is blocked. There is no corresponding structure to prevent the phenomenon of molten material drawing during injection molding, and it cannot avoid the problem of reducing the quality of injection molded parts. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic injection molding device for processing baby carriage tires to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic injection molding device for processing baby carriage tires, including a frame and a mold clamping chamber. On one side of the frame, there is an injection chamber. The left end of the injection chamber is connected to a feeding pipe. Above the feeding pipe, there is a feeding assembly. The left end of the feeding pipe is connected to a melting pipe. The left end of the melting pipe passes through the side wall of the mold clamping chamber and is connected to an injection nozzle assembly. The injection nozzle assembly includes an injection nozzle body and a dredging rod. The left end of the injection nozzle body is provided with a nozzle. On the right side of the nozzle, there is a nozzle necking. On the right side of the nozzle necking, there is a material conveying cavity. The right end of the injection nozzle body is threadedly connected with a limit cap. The dredging rod is slidably sleeved in the injection nozzle body. The side wall of the injection nozzle body is communicated with a storage cylinder. The outer wall of the horizontal part of the right end of the storage cylinder is provided with an external thread.

[0006] As a further improvement to the above solution, a thimble that cooperates with the nozzle is provided at the left end of the dredging rod. A glue-passing conical surface that cooperates with the necking of the nozzle is provided on the right side of the thimble. The right end of the dredging rod is connected to a sliding rod. The right end of the sliding rod passes through a limit cap and is connected to a circular push plate. The right end face of the circular push plate is connected to an electric push rod.

[0007] As a further improvement to the above solution, a filter element is sleeved inside the right end of the horizontal part of the storage barrel. The filter element is barrel-shaped. Screen-like circular through holes are provided on the side and bottom of the barrel body of the filter element. A ring-shaped limit plate is provided on the outer edge of the upper port of the filter element.

[0008] As a further improvement to the above solution, the melting glue pipe includes a auger and a heating sleeve. An injection glue pipe is sleeved outside the auger. A heating sleeve is sleeved outside the injection glue pipe. A protective sleeve is installed outside the melting glue pipe.

[0009] As a further improvement to the above solution, the feeding assembly includes a working hopper and a discharge port. The upper end of the working hopper is connected to a feeding hopper. The lower end of the working hopper is connected to a discharge pipe. The lower end of the discharge pipe is connected to the discharge port. The discharge port is slidably installed on the transfer plate.

[0010] As a further improvement to the above solution, a transparent viewing window is provided on the side wall of the working hopper. A hot air dryer is provided on the side wall of the working hopper. The air outlet of the hot air dryer is connected to a hot air pipe. The hot air pipe communicates with the working hopper. An insertion plate is provided at the connection between the working hopper and the discharge pipe.

[0011] As a further improvement to the above solution, a suction pipe is connected to the upper end of the feeding hopper. A suction pipe is communicated with the side wall of the feeding hopper. The suction pipe is connected to a suction machine.

[0012] As a further improvement to the above solution, a discharge hole and a discharge hole are provided on the transfer plate. The lower end of the discharge hole is connected to a discharge funnel. Limit baffles are provided on both sides of the upper end of the transfer plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] I. In this utility model, a dredging rod is slidably sleeved inside an injection nozzle body. A thimble matching with the nozzle tip is provided at the left end of the dredging rod. A glue-passing conical surface matching with the nozzle necking is provided on the right side of the thimble. The right end of the dredging rod is connected to a sliding rod. The right end of the sliding rod passes through a limit cap and is connected to a circular push plate. The right end face of the circular push plate is connected to an electric push rod. A nozzle tip is provided at the left end of the injection nozzle body. A nozzle necking is provided on the right side of the nozzle tip. A material conveying cavity is provided on the right side of the nozzle necking. The right end of the injection nozzle body is threadedly connected to a limit cap. During injection molding, the dredging rod can push the reserved surplus material in the material conveying cavity into the mold to perform pressure holding on the inside of the mold, improving the injection molding quality. At the same time, the glue-passing conical surface and the nozzle necking work together to block the molten material, preventing the molten material from flowing out and drawing filaments, reducing the injection molding quality and causing material waste. The thimble is used for dredging when the injection nozzle body is blocked, keeping the inside of the injection nozzle body clean, avoiding production suspension caused by the blockage of the injection nozzle body, and improving production efficiency. A storage barrel is communicated with the side wall of the injection nozzle body. An external thread is provided at the right end of the horizontal part of the storage barrel. A filter element is sleeved inside the right end of the horizontal part of the storage barrel. The filter element is in a barrel shape. Screen-shaped circular through holes are provided on the side surface and end face of the barrel body of the filter element. A ring-shaped limiting plate is provided at the outer edge of the barrel mouth of the filter element. The filter element can effectively filter the raw material particles and other impurities that may exist in the molten material and are not completely melted, preventing them from entering and blocking the material conveying cavity, resulting in production stop. At the same time, the filter element is arranged at the installation position of the injection nozzle body, facilitating disassembly and cleaning, improving production efficiency, and reducing the maintenance cost.

[0015] II. In this utility model, a plug plate is provided at the connection between the working hopper and the discharge pipe. The lower end of the discharge pipe is connected to a discharge port. The discharge port is slidably installed on a transfer plate. A discharge hole and a discharge hole are provided on the transfer plate. The lower end of the discharge hole is connected to a discharge funnel. Limiting baffles are provided on both sides of the upper end of the transfer plate. When the molten raw material in the melting tube is sufficient to complete the injection molding work, the plug plate is inserted to control the raw material in the working hopper from no longer entering the melting tube. After the injection molding is completed and the machine is stopped, the entire feeding assembly is slid on the transfer plate along with the discharge port to align the discharge port with the discharge hole and connect them. The plug plate is pulled out, and the remaining raw material is discharged through the discharge funnel, facilitating the recovery of the unprocessed raw material, saving raw materials, and keeping the inside of the bin clean during machine stop, providing convenience for the next injection molding production. Further, when the raw material in the working hopper is about to be used up and different raw materials need to be replaced, the plug plate can also be inserted, and the working hopper is fed with materials at the same time without affecting the ongoing injection molding production, preparing for the next new injection molding production, reducing the waiting time for machine stop and feeding, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 Schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 Schematic three-dimensional structure diagram of the present utility model after removing the protective cover;

[0019] Figure 3 Schematic three-dimensional structure diagram of the injection nozzle assembly in the present utility model;

[0020] Figure 4 Cross-sectional view of the injection nozzle assembly in the present utility model;

[0021] Figure 5 Partial cross-sectional view of the melt tube in the present utility model;

[0022] Figure 6 Schematic three-dimensional structure diagram of the feeding assembly of the present utility model during feeding;

[0023] Figure 7 Schematic three-dimensional structure diagram of the feeding assembly of the present utility model during discharging.

[0024] In the figure: 1, frame; 2, mold clamping chamber; 3, injection chamber; 4, feeding pipe; 5, feeding assembly; 51, working hopper; 511, transparent viewing window; 512, hot air dryer; 513, hot air pipe; 52, feeding hopper; 521, suction pipe; 522, exhaust pipe; 523, suction machine; 53, discharge pipe; 54, discharge port; 55, transfer plate; 551, discharge hole; 552, discharge hole; 553, discharge funnel; 554, limit baffle; 56, plug board; 6, melt tube; 61, auger; 62, injection pipe; 63, heating sleeve; 64, protective cover; 7, injection nozzle assembly; 71, injection nozzle body; 711, nozzle; 712, nozzle necking; 713, material conveying cavity; 714, limit cap; 715, storage cylinder; 716, filter element; 7161, annular limit plate; 72, dredging rod; 721, ejector pin; 722, glue-passing conical surface; 723, sliding rod; 724, circular push plate; 725, electric push rod. Detailed implementation manners

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] An automated injection molding device for processing baby carriage tires, such as Figures 1 to 7 As shown, it includes a frame 1 and a mold chamber 2. An injection bin 3 is provided on one side of the frame 1. The injection bin is a power mechanism for the injection plastic to move in the melt tube 6 after hot melting. The hot melt material is moved by the rotation of the motor to drive the auger 61 to rotate. The left end of the injection bin 3 is connected to a feeding pipe 4, and the upper part of the feeding pipe 4 is connected to a feeding assembly 5. The automatic feeding assembly can quickly and conveniently add injection molding materials to the injection molding machine, improve the injection molding stability and efficiency, and reduce production costs. The feeding assembly 5 includes a working hopper 51 and a discharge port 54. The upper end of the working hopper 51 is connected to a feeding hopper 52, and the upper end of the feeding hopper 52 is connected to a suction pipe 521. The side wall of the feeding hopper 52 is connected to an exhaust pipe 522, and the exhaust pipe 522 is connected to a suction machine 523. The suction machine 523 works to put the feeding hopper 52 in a negative pressure state to achieve the purpose of sucking the injection molding material.

[0027] like Figure 6 and Figure 7 As shown, a transparent window 511 is provided on the side wall of the working hopper 51, which is convenient for observing the raw material stock in the working hopper 51 and replenishing it in time when the raw material stock in the working hopper 51 is insufficient. A hot air dryer 512 is provided on the side wall of the working hopper 51. The air outlet of the hot air dryer 512 is connected to a hot air pipe 513, and the hot air pipe 513 is connected to the working hopper 51. The hot air dryer 512 performs hot air drying on the raw materials in the working hopper 51 to reduce adhesion between the raw materials and prevent the raw materials from clumping and clogging the discharge pipe 53 and the discharge port 54, thereby affecting normal production work. The lower end of the working hopper 51 is connected to the discharge pipe 53, and the lower end of the discharge pipe 53 is connected to the discharge port 54. The discharge port 54 is slidably installed on the adapter plate 55.

[0028] like Figure 1 and Figure 5 As shown, the left end of the feeding tube 4 is connected to a melt glue tube 6, which includes an auger 61 and a heating sleeve 63. The outer jacket of the auger 61 is provided with a glue injection tube 62, and the outer jacket of the glue injection tube 62 is provided with a heating sleeve 63. A protective sleeve 64 is installed outside the melt glue tube 6. The heating sleeve 63 hot-melts the raw materials in the glue injection tube 62, and controls the hot-melting time and state of the raw materials by adjusting the heating temperature. The protective sleeve 64 protects the melt glue tube 6 and prevents personnel from being scalded by the high temperature of the heating sleeve 63, thereby improving safety.

[0029] As Figure 3 and Figure 4 shown, the left end of the melt pipe 6 passes through the side wall of the mold clamping chamber 2 and is connected with an injection nozzle assembly 7. The injection nozzle assembly 7 includes an injection nozzle body 71 and a dredging rod 72. The dredging rod 72 is slidably sleeved in the injection nozzle body 71. The inner diameter of the injection nozzle body 71 is small, and it is not easy to clean after the molten injection molding raw material is cooled and dried. The dredging rod 72 sleeved in the injection nozzle body 71 can be dredged from the inside to keep the inside of the injection nozzle body 71 clean, avoid production suspension caused by blockage of the injection nozzle body 71, and improve production efficiency.

[0030] As Figure 3 and Figure 4 shown, a nozzle tip 711 is provided at the left end of the injection nozzle body 71. The inner diameter of the nozzle tip 711 is the smallest, and the relatively large pressure ensures that the molten material can be fully injected into the mold to improve the molding quality. A nozzle necking 712 is provided on the right side of the nozzle tip 711, and a material conveying cavity 713 is provided on the right side of the nozzle necking 712. The nozzle necking 712 is conical, connecting the nozzle tip 711 and the material conveying cavity 731. The right end of the injection nozzle body 71 is threadedly connected with a limit cap 714. A through hole for the sliding rod 723 to pass through is provided at the right end of the limit cap 714, which plays a limiting role to prevent the dredging rod 72 from being pulled out along with the sliding rod 723. A storage cylinder 715 is communicated with the side wall of the injection nozzle body 71. An external thread is provided at the right end of the horizontal part of the storage cylinder 715. The storage cylinder 715 is threadedly communicated with the melt pipe 6 to provide a storage space. A filter element 716 is sleeved inside the right end of the horizontal part of the storage cylinder 715. The filter element 716 is barrel-shaped. Circular through holes in the shape of a sieve are provided on the side surface and end surface of the barrel body of the filter element 716. A ring-shaped limiting plate 7161 is provided on the outer edge of the barrel mouth of the filter element 716.

[0031] As Figure 3 and Figure 4 shown, a thimble 721 matching with the nozzle tip 711 is provided at the left end of the dredging rod 72. The thimble can be dredged when the injection nozzle body 71 is blocked, and the blocked molten material is pushed out of the injection nozzle body 71. A glue-passing conical surface 722 matching with the nozzle necking 712 is provided on the right side of the thimble 721. After a plastic injection process is completed, the glue-passing conical surface 722 and the nozzle necking 712 work together to block the molten material to prevent the molten material from flowing out and drawing wires, reducing the injection molding quality and material waste. The right end of the dredging rod 72 is connected with a sliding rod 723. The right end of the sliding rod 723 passes through the limit cap 714 and is connected with a circular push plate 724. An electric push rod 725 is connected to the right end face of the circular push plate 724.

[0032] During the operation of Embodiment 1, the suction pipe 521 is connected to the raw material barrel, and the suction machine 523 is started to suck the raw materials into the working hopper 51 through the feeding hopper 52. The hot air dryer 512 is started to perform hot air drying on the raw materials in the working hopper 51. The auger 61 and the heating sleeve 63 of the injection chamber 3 and the melt pipe 6 are started to melt the injection raw materials entering the melt pipe 6 through the discharge port 54 and transmit them to the injection nozzle assembly 7 in the mold clamping chamber 2. When injection molding, the electric push rod 752 drives the dredging rod 72 to move to the right through the sliding rod 723, so that the storage barrel 715 is communicated with the material conveying cavity 713. The molten raw materials enter the mold from the nozzle 711. After injecting a certain amount of molten raw materials into the mold, the power of the injection chamber 3 drives the auger 61 to rotate, reducing the injection pressure. At the same time, the electric push rod 752 drives the dredging rod 72 to move to the left through the sliding rod 723, pushing the reserved remaining materials in the material conveying cavity 713 into the mold and maintaining them in the mold, performing pressure holding on the mold to improve the injection molding quality. After the injection molding is completed, the dredging rod 72 is pulled back to the right by the electric push rod 752 through the sliding rod 723 again to carry out the injection molding work in the next cycle. Embodiment 2

[0033] Based on Embodiment 1, as shown in Embodiment 2 Figure 6 and Figure 7 As shown, a plug board 56 is provided at the connection between the working hopper 51 and the discharge pipe 53. The adapter plate 55 is provided with a discharge hole 551 and a discharge hole 552. The lower end of the discharge hole 552 is connected with a discharge funnel 553. Limiting baffles 554 are provided on both sides of the upper end of the adapter plate 55. After the injection molding production is completed and it is necessary to stop the machine to discharge the remaining raw materials in the working hopper 51, the discharge port 54 can be slid to be docked and communicated with the discharge hole 552, so that the remaining raw materials are discharged through the discharge hole 552 and the discharge funnel 553 for recycling.

[0034] During the operation of Embodiment 2, when there is enough molten raw material in the melt pipe 6 to complete the injection molding work, the plug board 56 is inserted to control the raw materials in the working hopper 51 from entering the melt pipe 6. After the injection molding is completed, the machine is stopped, the discharge port 54 is slid to be docked and communicated with the discharge hole 552, and the plug board 56 is pulled out, so that the remaining raw materials are discharged through the discharge funnel 553 for recycling; when the raw materials in the working hopper 51 are about to be used up and different raw materials need to be replaced, the plug board 56 can be inserted, and then the working hopper 51 can be fed with materials without affecting the production, reducing the waiting time for stopping the machine to feed materials and improving the work efficiency.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated injection molding device for processing baby carriage tires, comprising a frame (1) and a mold clamping chamber (2), characterized in that: On one side of the frame (1), an injection chamber (3) is provided. The left end of the injection chamber (3) is connected to a feeding pipe (4). Above the feeding pipe (4), a feeding assembly (5) is connected. The left end of the feeding pipe (4) is connected to a melting pipe (6). The left end of the melting pipe (6) passes through the side wall of the mold clamping chamber (2) and is connected to an injection nozzle assembly (7). The injection nozzle assembly (7) includes an injection nozzle body (71) and a dredging rod (72). At the left end of the injection nozzle body (71), a nozzle (711) is provided. On the right side of the nozzle (711), a nozzle necking (712) is provided. On the right side of the nozzle necking (712), a material conveying cavity (713) is provided. The right end of the injection nozzle body (71) is threadedly connected with a limiting cap (714); the dredging rod (72) is slidably sleeved inside the injection nozzle body (71). A storage cylinder (715) is communicated with the side wall of the injection nozzle body (71). The outer wall of the right end of the horizontal part of the storage cylinder (715) is provided with an external thread.

2. The automated injection molding equipment for processing children's tricycle tires according to claim 1, wherein: At the left end of the dredging rod (72), a thimble (721) matching with the nozzle (711) is provided. On the right side of the thimble (721), a glue passing conical surface (722) matching with the nozzle necking (712) is provided. The right end of the dredging rod (72) is connected to a sliding rod (723). The right end of the sliding rod (723) passes through the limiting cap (714) and is connected to a circular push plate (724). The right end face of the circular push plate (724) is connected to an electric push rod (725).

3. An automated injection molding device for processing children's tricycle tires according to claim 1, characterized in that: Inside the right end of the horizontal part of the storage cylinder (715), a filter element (716) is sleeved. The filter element (716) is barrel-shaped. Screen-shaped circular through holes are provided on the side surface and the bottom surface of the barrel body of the filter element (716). An annular limiting plate (7161) is provided on the outer edge of the upper port of the filter element (716).

4. An automated injection molding device for processing children's tricycle tires according to claim 1, characterized in that: The melting pipe (6) includes a auger (61), a glue injection pipe (62) and a heating sleeve (63). The auger (61) is sleeved with the glue injection pipe (62). The glue injection pipe (62) is sleeved with the heating sleeve (63). A protective sleeve (64) is installed outside the melting pipe (6).

5. An automated injection molding device for processing children's tricycle tires according to claim 1, characterized in that: The feeding assembly (5) includes a working hopper (51) and a discharge port (54). The upper end of the working hopper (51) is connected to a feeding hopper (52). The lower end of the working hopper (51) is connected to a discharge pipe (53). The lower end of the discharge pipe (53) is connected to the discharge port (54). The discharge port (54) is slidably installed on a transfer plate (55).

6. An automated injection molding device for processing children's tricycle tires according to claim 5, characterized in that: A transparent window (511) is provided on the side wall of the working hopper (51). A hot air dryer (512) is provided on the side wall of the working hopper (51). The air outlet of the hot air dryer (512) is connected to a hot air pipe (513). The hot air pipe (513) communicates with the working hopper (51). An insertion plate (56) is provided at the connection between the working hopper (51) and the discharge pipe (53).

7. An automated injection molding device for processing children's bicycle tires according to claim 5, characterized in that: The upper end of the feeding hopper (52) is connected to a suction pipe (521). The side wall of the feeding hopper (52) is communicated with an exhaust pipe (522). The exhaust pipe (522) is connected to a suction machine (523).

8. An automated injection molding device for processing children's tricycle tires according to claim 5, characterized in that: The transfer board (55) is provided with a discharge hole (551) and a discharging hole (552). The lower end of the discharging hole (552) is connected with a discharging funnel (553). Limiting baffles (554) are arranged on both sides of the upper end of the transfer board (55).

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