Plastic particle conveying device for injection molding

Abstract

The utility model relates to the technical field of plastic processing, and discloses a plastic particle conveying device for injection molding, which comprises a vacuum suction machine main body, a feeding pipe fixedly connected to the input end of the vacuum suction machine main body and a feeding hose fixedly mounted at the input end of the feeding pipe, and a material blocking component is mounted at one end, far away from the feeding pipe, of the feeding hose. According to the vacuum material suction machine, the material blocking assembly is arranged, after the vacuum material suction machine body is suddenly shut down, no negative pressure exists in the sealing cavity, the two baffles can rapidly slide and close the center of the interior of the fixing cylinder through the elasticity of the spring, and residual materials in the feeding hose can be prevented from falling off through the feeding hose; when the device is started next time, the device does not need to idle to wait for materials to enter the material suction area again, the device can directly enter a normal material conveying state, material conveying can be more quickly linked, timeliness of raw material supply to follow-up machining devices such as an injection molding machine is guaranteed, and product output in unit time is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastics processing, more particularly to a plastic particle conveying device for injection molding. BACKGROUND

[0002] The vacuum material suction machine in the plastic particle conveying device for injection molding is a device specially used for conveying plastic particles. When the vacuum material suction machine is normally working, the material is conveyed upward along the feeding pipe under the action of suction force by relying on the negative pressure generated by the vacuum pump. However, once the device is suddenly turned off, the negative pressure disappears, the material falls down, and when it is started again, it may need to idle for a period of time to wait for the material to enter the material suction area. During this period, the device is in an idle state without material conveying, which not only wastes energy but also prolongs the cycle of the entire production process. Due to the above-mentioned idle condition and the problem of material conveying connection, it is difficult to ensure seamless connection of the raw material supply to the injection molding machine, which is not conducive to realizing continuous and stable injection molding production, and may cause the injection molding machine to stop temporarily due to the delay of raw material supply, affecting the continuity and smoothness of the entire production line. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a plastic particle conveying device for injection molding to solve the problems existing in the above-mentioned background technology.

[0004] The utility model provides the following technical scheme: a plastic particle conveying device for injection molding, comprising a vacuum material suction machine main body, a feeding pipe fixedly connected to the input end of the vacuum material suction machine main body, and a feeding hose fixedly installed at the input end of the feeding pipe, wherein one end of the feeding hose away from the feeding pipe is provided with a material blocking assembly.

[0005] The material blocking assembly comprises a fixed cylinder fixedly connected to the end face of the feeding hose, an air inlet groove is formed in the inside of the fixed cylinder, a filter screen is fixedly installed in the inside of the air inlet groove, a communication pipe is fixedly connected to the inside of the fixed cylinder and communicates with the inside of the air inlet groove, a sealing cavity is formed in the inside of the fixed cylinder, a rubber sealing plate is sealingly and slidably connected to the inside of the sealing cavity, a baffle is fixedly connected to the side surface of the rubber sealing plate, a sliding groove is formed in the inside of the baffle, a spring is movably installed in the inside of the sliding groove, a disc is slidably connected to the inside of the sliding groove, a fixed rod is fixedly connected to the surface center of the disc away from the spring, and a positioning assembly is installed in the inside of the fixed cylinder.

[0006] Further, the positioning assembly comprises a sealing groove formed in the fixed cylinder, the inside of the sealing groove is fixedly connected with a limiting rod, the outer surface of the limiting rod is slidably connected with a positioning plate, the inside of the fixed cylinder is fixedly installed with a bearing, the inner ring of the bearing is fixedly connected with a rotating rod, the surface of the rotating rod close to the positioning plate is provided with threads, the surface of the positioning plate is provided with a threaded hole, and the outer surface of the rotating rod is threadedly connected in the inside of the positioning plate.

[0007] Further, the inside of the sealing groove is communicated with the inside of the sealing cavity, the inside of the sealing cavity and the sealing groove is in a sealed state, the outer surface of the rotating rod is sealingly and rotatably connected in the inside of the fixed cylinder, and the end of the rotating rod away from the positioning plate extends to the outside of the fixed cylinder.

[0008] Further, the surface of the rubber sealing plate is fixedly connected with a sealing rubber sleeve at the center, and the outer surface of the limiting rod is sealingly and slidably connected in the inside of the sealing rubber sleeve.

[0009] Further, the outer surface of the rubber sealing plate is fixedly installed with a sealing ring, the thickness of the rubber sealing plate is greater than the width of the sealing groove, and the inside of the air inlet groove is communicated with the inside of the sealing cavity through a communication pipe.

[0010] Further, the outer surface of the baffle is sealingly and slidably connected in the inside of the fixed cylinder, and the top of the positioning plate extends to the inside of the sealing cavity.

[0011] The technical effects and advantages of the present application are as follows:

[0012] 1. The utility model discloses a blocking component is arranged, after the sudden shutdown of vacuum material suction machine main part, the inside of sealing cavity has no negative pressure, can make two baffle fast sliding and close the inside center of fixed cylinder through the elasticity of spring, can avoid the material remaining in feeding hose to fall down through feeding hose, and when starting next time, need not let the equipment idling waiting for material to re-enter the material suction area, can directly enter normal material conveying state, effectively shorten the preparation time after the restart of equipment, make material conveying can be faster and connect, guarantee the timeliness of raw material supply to subsequent processing equipment such as injection molding machine, help to maintain the high efficiency, continuous operation of whole injection molding production process, improve the product output in unit time.

[0013] 2. The utility model discloses a positioning assembly, can limit the sliding position of rubber sealing plate, thereby can control the opening and closing size of baffle, so when sucking material, the amount of material entering the inside of feeding hose can be controlled, the risk of blocking the inside of vacuum material suction machine main part due to excessive material suction is avoided, the equipment can be stably operated for a long time, the downtime caused by fault maintenance is reduced, and the continuity of production is maintained. DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a sectional view of the material blocking assembly in the utility model;

[0016] Figure 3 It is Figure 2 It is an enlarged view of A in the middle;

[0017] Figure 4 It is a connection schematic view of the rubber sealing plate and the sealing rubber sleeve in the utility model.

[0018] The figure signs are: 1, vacuum material suction machine main body; 2, feed pipe; 3, feed hose; 4, material blocking assembly; 41, fixed cylinder; 42, air inlet groove; 43, filter screen; 44, communication pipe; 45, sealing cavity; 46, rubber sealing plate; 461, sealing rubber sleeve; 47, fixed rod; 48, disc; 49, baffle; 410, sliding groove; 411, spring; 5, positioning assembly; 51, sealing groove; 52, limiting rod; 53, positioning plate; 54, bearing; 55, rotating rod. DETAILED DESCRIPTION

[0019] The utility model will be further explained in combination with specific embodiments, however, people skilled in the art should understand that the detailed description given in combination with the drawings is for better explanation, the structure of the utility model must exceed these limited embodiments, and for some equivalent replacement schemes or common means, the detailed description will not be described in the text, but still belongs to the protection scope of the application.

[0020] Figures 1-4 It is the best embodiment of the utility model, the following will be combined with the drawings Figures 1-4 The utility model will be further explained.

[0021] Specifically, a plastic particle conveying device for injection molding, comprising a vacuum material suction machine main body 1, a feed pipe 2 fixedly connected to the input end of the vacuum material suction machine main body 1 and a feed hose 3 fixedly installed at the input end of the feed pipe 2, and a material blocking assembly 4 is installed at the end of the feed hose 3 away from the feed pipe 2;

[0022] The blocking assembly 4 comprises a fixed cylinder 41 fixedly connected to the end face of the feeding hose 3, an air inlet groove 42 is formed in the inner part of the fixed cylinder 41, a filter screen 43 is fixedly installed in the inner part of the air inlet groove 42, a communication pipe 44 in communication with the inner part of the air inlet groove 42 is fixedly connected to the inner part of the fixed cylinder 41, a sealing cavity 45 is formed in the inner part of the fixed cylinder 41, a rubber sealing plate 46 is sealingly and slidably connected to the inner part of the sealing cavity 45, a baffle 49 is fixedly connected to the side face of the rubber sealing plate 46, a sliding groove 410 is formed in the inner part of the baffle 49, a spring 411 is movably installed in the inner part of the sliding groove 410, a disc 48 is slidably connected to the inner part of the sliding groove 410, a fixed rod 47 is fixedly connected to the surface center of the disc 48 away from the spring 411, and a positioning assembly 5 is installed in the inner part of the fixed cylinder 41.

[0023] In the embodiment, by arranging the blocking assembly 4, when the vacuum material suction machine main body 1 is suddenly powered off, there is no negative pressure in the sealing cavity 45, and by the elasticity of the spring 411, the two baffles 49 can quickly slide and close the inner center of the fixed cylinder 41, so that the residual material in the feeding hose 3 can be prevented from falling through the feeding hose 3, and the next time the device is started, it is not necessary to idle and wait for the material to re-enter the material suction area, and the device can directly enter the normal material conveying state, effectively shortening the preparation time after the device is restarted, making the material conveying faster, ensuring the timeliness of the raw material supply to the subsequent processing equipment such as the injection molding machine, and helping to maintain the high efficiency and continuous operation of the entire injection molding production process, and improving the product output per unit time.

[0024] Specifically, the positioning assembly 5 comprises a sealing groove 51 formed in the inner part of the fixed cylinder 41, a limiting rod 52 is fixedly connected to the inner part of the sealing groove 51, a positioning plate 53 is slidably connected to the outer surface of the limiting rod 52, a bearing 54 is fixedly installed in the inner part of the fixed cylinder 41, a rotating rod 55 is fixedly connected to the inner ring of the bearing 54, the surface of the rotating rod 55 close to the positioning plate 53 is provided with a thread, a threaded hole is formed in the surface of the positioning plate 53, and the outer surface of the rotating rod 55 is threadedly connected in the inner part of the positioning plate 53.

[0025] In the embodiment, by arranging the positioning assembly 5, the sliding position of the rubber sealing plate 46 can be limited, so that the opening and closing size of the baffle 49 can be controlled, and thus the amount of material entering the inner part of the feeding hose 3 can be controlled when the material is sucked, the risk of blockage of the inner part of the vacuum material suction machine main body 1 caused by excessive material suction can be avoided, the device can be stably operated for a long time, the downtime caused by fault maintenance can be reduced, and the continuity of production can be maintained.

[0026] Specifically, the inner part of the sealing groove 51 is in communication with the inner part of the sealing cavity 45, the inner parts of the sealing cavity 45 and the sealing groove 51 are in a sealed state, the outer surface of the rotating rod 55 is sealingly and rotatably connected to the inner part of the fixed cylinder 41, and one end of the rotating rod 55 away from the positioning plate 53 extends to the outer part of the fixed cylinder 41.

[0027] In the embodiment, since the interiors of the sealing cavity 45 and the sealing groove 51 are in a sealed state, normal sliding of the rubber sealing plate 46 can be ensured.

[0028] Specifically, the rubber sealing plate 46 is fixedly connected with a sealing rubber sleeve 461 at the surface center thereof, and the outer surface of the limiting rod 52 is sealingly and slidably connected in the interior of the sealing rubber sleeve 461.

[0029] In the embodiment, the sealing rubber sleeve 461 is arranged to ensure the sealing property of the interior of the sealing cavity 45.

[0030] Specifically, the outer surface of the rubber sealing plate 46 is fixedly installed with a sealing ring, the thickness of the rubber sealing plate 46 is greater than the width of the sealing groove 51, and the interior of the air inlet groove 42 is connected in communication with the interior of the sealing cavity 45 through the communication pipe 44.

[0031] In the embodiment, since the thickness of the rubber sealing plate 46 is greater than the width of the sealing groove 51, it can be ensured that the rubber sealing plate 46 is sealingly and closely fitted with the inner wall of the sealing cavity 45 no matter where it slides to.

[0032] Specifically, the outer surface of the baffle 49 is sealingly and slidably connected in the interior of the fixed cylinder 41, and the top of the positioning plate 53 extends into the interior of the sealing cavity 45.

[0033] In the embodiment, since the outer surface of the baffle 49 is sealingly and slidably connected in the interior of the fixed cylinder 41, when the two baffles 49 are closed, the sealing property of the interior of the fixed cylinder 41 can be enhanced.

[0034] The working principle and use process of the utility model: when using, through starting vacuum suction material machine main body 1, at this time, feed hose 3 and fixed cylinder 41 inside are in negative pressure state, because air inlet groove 42 and communication pipe 44, at this time, sealing cavity 45 inside is also in negative pressure state, rubber sealing plate 46 drives baffle 49 to slide away from fixed cylinder 41 center, when baffle 49 opens, fixed cylinder 41 and the residual material in feed hose 3 are directly sucked, at the same time, external material is followed by being sucked through the bottom center of fixed cylinder 41, after vacuum suction material machine main body 1 is shut down, sealing cavity 45 inside has no negative pressure, through the elasticity of spring 411, can make two baffle 49 slide fast and close to the inside center of fixed cylinder 41, can avoid the residual material in feed hose 3 to fall through feed hose 3, when needing to control the feed quantity, through rotating rotating rod 55, can drive positioning plate 53 to slide in sealing groove 51, the distance between positioning plate 53 and rubber sealing plate 46 is greater, baffle 49 can slide distance is longer, the feed quantity is greater, the distance between positioning plate 53 and rubber sealing plate 46 is smaller, baffle 49 can slide distance is smaller, the feed quantity is smaller, through controlling the quantity of material entering feed hose 3 inside, can avoid the situation that vacuum suction material machine main body 1 is blocked inside by too much material suction.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms, and any skilled person in the art can change or modify the equivalent embodiments with the disclosed technical content. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the utility model, according to the technical essence of the utility model, still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A plastic particle conveying device for injection molding, comprising a vacuum feeder body (1), a feed pipe (2) fixedly connected to the input end of the vacuum feeder body (1), and a feed hose (3) fixedly installed at the input end of the feed pipe (2), characterized in that: The feed hose (3) is equipped with a material blocking component (4) at the end away from the feed pipe (2); The material blocking assembly (4) includes a fixed cylinder (41) fixedly connected to the end face of the feed hose (3). An air inlet groove (42) is provided inside the fixed cylinder (41). A filter screen (43) is fixedly installed inside the air inlet groove (42). A connecting pipe (44) connected to the inside of the air inlet groove (42) is fixedly connected inside the fixed cylinder (41). A sealing cavity (45) is provided inside the fixed cylinder (41). A rubber sealing plate (46) is slidably connected inside the sealing cavity (45). A baffle (49) is fixedly connected to the side of the rubber sealing plate (46). A sliding groove (410) is provided inside the baffle (49). A spring (411) is movably installed inside the sliding groove (410). A disc (48) is slidably connected inside the sliding groove (410). A fixing rod (47) is fixedly connected to the center of the surface of the disc (48) away from the spring (411). A positioning assembly (5) is installed inside the fixed cylinder (41).

2. The plastic particle conveying device for injection molding according to claim 1, characterized in that: The positioning component (5) includes a sealing groove (51) opened inside the fixed cylinder (41). A limiting rod (52) is fixedly connected inside the sealing groove (51). A positioning plate (53) is slidably connected to the outer surface of the limiting rod (52). A bearing (54) is fixedly installed inside the fixed cylinder (41). A rotating rod (55) is fixedly connected to the inner ring of the bearing (54). The rotating rod (55) has a thread on its surface near the positioning plate (53). A threaded hole is opened through the surface of the positioning plate (53). The outer surface of the rotating rod (55) is threadedly engaged with the inside of the positioning plate (53).

3. The plastic particle conveying device for injection molding according to claim 2, characterized in that: The interior of the sealing groove (51) is connected to the interior of the sealing cavity (45). Both the interior of the sealing cavity (45) and the interior of the sealing groove (51) are sealed. The outer surface of the rotating rod (55) is rotatably connected to the interior of the fixed cylinder (41). The end of the rotating rod (55) away from the positioning plate (53) extends to the outside of the fixed cylinder (41).

4. The plastic particle conveying device for injection molding according to claim 2, characterized in that: A sealing rubber sleeve (461) is fixedly connected to the center of the surface of the rubber sealing plate (46), and the outer surface of the limiting rod (52) is slidably connected to the inside of the sealing rubber sleeve (461).

5. A plastic particle conveying device for injection molding according to claim 2, characterized in that: A sealing ring is fixedly installed on the outer surface of the rubber sealing plate (46). The thickness of the rubber sealing plate (46) is greater than the width of the sealing groove (51). The interior of the air inlet groove (42) is connected to the interior of the sealing cavity (45) through a connecting pipe (44).

6. A plastic particle conveying device for injection molding according to claim 2, characterized in that: The outer surface of the baffle (49) is slidably connected to the inside of the fixed cylinder (41), and the top of the positioning plate (53) extends into the inside of the sealing cavity (45).

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