Excess material recovery device for injection molding of automobile injection molded part

Abstract

The utility model relates to an automobile injection molding part injection molding excess material recycling device which comprises a bubble pipe, a spiral propelling blade arranged in the bubble pipe, a feeding pipe communicating with the bubble pipe and a recycling opening formed in the outer portion of the feeding pipe, the feeding pipe is a square pipe, one end of the feeding pipe communicates with an extending frame, and the other end of the feeding pipe communicates with a discharging pipe. A blocking device used for blocking a bubble pipe and the feeding pipe is arranged in the extending frame, a material pushing and recycling mechanism is arranged on the blocking device, and the material pushing and recycling mechanism comprises a pushing component which is arranged in the mounting plate and serves as a power source. According to the excess material recovery device for injection molding of the automobile injection molding part, an extension frame is installed outside the position where a feeding pipe and a bubble pipe communicate with each other, a mounting plate is arranged to block the area from the feeding pipe to the bubble pipe, and a push plate connected to the mounting plate is arranged to lift up, so that excess materials in the feeding pipe can be overall lifted up; therefore, the phenomenon of recovery omission of the excess materials in the feeding pipe is reduced, and the recovery effect of the excess materials is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molded parts production, and in particular to a residual material recovery device for automobile injection molded parts. Background Art

[0002] Automotive injection molding parts are one of the many accessories of new energy vehicles. Commonly used materials for automotive injection molding parts include polypropylene (PP), polyethylene (PE), etc. These materials each have their own characteristics and scope of application. For example, polypropylene (PP) has good chemical resistance and low density, and is often used to manufacture automotive exterior parts; polyvinyl chloride (PVC) is due to its low cost and good processing performance.

[0003] The residual material recovery of automobile injection molded parts is mainly aimed at the residual injection molding material remaining in the injection molding bubble tube after a single injection molding. After searching the utility model with the announcement number CN208497521 U, the recovery mechanism of the residual material of the injection molding machine includes a bubble tube and a spiral rod penetrating the bubble tube, and a vertically arranged feed tube is connected to the feed end of the bubble tube. The recovery mechanism includes an inclined recovery hole arranged at one end of the feed tube near the bubble tube, and the lower end of the inclined recovery hole is connected with the connecting part of the bubble tube and the feed tube. A closure part detachably connected to the feed tube is provided at the end of the feed tube where the inclined recovery hole is provided, and a recovery tube inclined downward is provided on the upper end side of the feed tube. The mechanism also includes a negative pressure suction device and the negative pressure suction device can extend into the inclined recovery hole to absorb the residual material in the feed tube outward. The utility model has the advantages of reducing costs and not changing the original properties of the raw materials.

[0004] The above patent application recovers the residual material by setting a negative pressure device to extend to the feed pipe of the injection molding equipment, thereby avoiding the influence of temperature on the raw materials entering the bubble tube. Since the recovery method of negative pressure suction is adopted, the recovery of the raw materials in the feed pipe is not thorough enough, and some residual raw materials are easy to enter the bubble tube. In order to more thoroughly recover the injection molding residual material in the feed pipe, a residual material recovery device for automobile injection molding is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application provides a residual material recovery device for automobile injection molding parts, which has the advantages of completely recovering the residual material in the feed pipe and reducing the residual material residue.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a residual material recovery device for automobile injection molding parts, comprising a bubble tube, a spiral propulsion blade built in the bubble tube, a feed tube connected to the bubble tube, and a recovery port opened outside the feed tube, wherein the feed tube is a square tube, and one end of the feed tube is connected to an extension frame, and a blocking device for blocking the bubble tube and the feed tube is arranged in the extension frame;

[0007] The blocking device is provided with a material pushing and recovery mechanism, which includes a propulsion component arranged in the mounting plate and used as a power source, a push plate connected to the propulsion component, and the propulsion component includes a servo motor fixedly installed in the mounting plate and a transmission member arranged on the power end of the servo motor.

[0008] Furthermore, the blocking device includes a mounting plate slidably connected to the inner wall of the extension frame and a guide member fixedly connected to the mounting plate, and the cross-sections of the mounting plate and the feed pipe correspond.

[0009] Furthermore, the guide component includes a guide rod fixedly connected to the end of the mounting plate away from the feed pipe, and a spring fixedly connected between the mounting plate and the inner wall of the extension frame, wherein a sliding hole is penetrated through the extension frame, and the guide rod is slidably connected to the sliding hole.

[0010] Furthermore, an adjustment block is rotatably mounted on one end of the guide rod close to the mounting plate, the guide rod and the sliding hole are both rectangular, and the adjustment block is a rectangular block with a size equal to the cross section of the guide rod.

[0011] Furthermore, a connecting block is fixedly mounted on one end of the guide rod extending to the outside of the extension frame.

[0012] Furthermore, a heat insulation plate is fixedly mounted on one side surface of the mounting plate facing the bubble tube.

[0013] Furthermore, a connection cover is fixedly mounted on the bottom of the push plate, and the connection cover is rectangular and inverted on the mounting plate.

[0014] Furthermore, the transmission member includes a first helical gear fixedly mounted on the output end of the servo motor and a second helical gear fixedly mounted on the threaded rod, and the first helical gear is meshed with the second helical gear.

[0015] Furthermore, two threaded sleeves are installed on the external threads of the threaded rod, the two threaded sleeves are threadedly connected to both ends of the threaded rod, and a push rod is rotatably installed between the threaded sleeve and the push plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The residual material recovery device for automobile injection molding parts is provided with an extension frame installed outside the position where a feed pipe and a bubble pipe are connected to each other, and a mounting plate is provided to seal the area from the feed pipe to the bubble pipe. By lifting up a push plate connected to the mounting plate, the residual material in the feed pipe can be lifted as a whole, thereby reducing the phenomenon of recycling and missing the residual material in the feed pipe and improving the recovery effect of the residual material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a structural stereogram of the extension frame of this application;

[0020] Figure 3 For this application Figure 1 A magnified view of the structure at center.

[0021] In the figure: 1. bubble tube; 2. spiral propulsion blade; 3. feed pipe; 4. recovery port; 5. extension frame; 6. mounting plate; 7. heat insulation plate; 8. guide rod; 9. spring; 10. slide hole; 11. adjustment block; 12. connecting block; 13. push plate; 14. connecting cover; 15. threaded rod; 16. threaded sleeve; 17. push rod; 18. second bevel gear; 19. servo motor; 20. first bevel gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] See also Figure 1-3 In this embodiment, a residual material recovery device for automobile injection molding parts includes a bubble tube 1, a spiral propulsion blade 2 built in the bubble tube 1, a feed tube 3 connected to the bubble tube 1 and a recovery port 4 opened outside the feed tube 3. The recovery port 4 should have a blocking cover for sealing. During the injection molding process, plastic particles used to manufacture new energy automobile injection molding parts are put into the feed tube 3, and then transported through the bubble tube 1 to complete the feeding of injection molding raw materials.

[0024] In this embodiment, the feed tube 3 adopts a square tube, and one end of the feed tube 3 is connected to an extension frame 5, and a blocking device for blocking the bubble tube 1 and the feed tube 3 is arranged in the extension frame 5. The blocking device includes a mounting plate 6 slidably connected to the inner wall of the extension frame 5 and a guide member fixedly connected to the mounting plate 6. The cross-sections of the mounting plate 6 and the feed tube 3 correspond to each other, and the mounting plate 6 can slide into the feed tube 3 and abut against the inner wall of the feed tube 3, thereby realizing the blocking of the feed tube 3 relative to the bubble tube 1.

[0025] It should be noted that the guide component includes a guide rod 8 fixedly connected to the end of the mounting plate 6 away from the feed pipe 3, and a spring 9 fixedly connected between the mounting plate 6 and the inner wall of the extension frame 5, wherein a sliding hole 10 is penetrated through the extension frame 5, and the guide rod 8 is slidably connected to the sliding hole 10. Under the push of the spring 9, the mounting plate 6 can extend in the opposite direction toward the inner wall of the feed pipe 3.

[0026] In order to achieve the adjustable position of the mounting plate 6, an adjusting block 11 is rotatably installed on one end of the guide rod 8 close to the mounting plate 6 in this embodiment. The guide rod 8 and the sliding hole 10 are both rectangular. The adjusting block 11 is a rectangular block with a size equal to the cross-section of the guide rod 8. A connecting shaft passes through the axis of the guide rod 8 so that the two sections of the guide rod 8 separated by the adjusting block 11 maintain a horizontal connection. The adjusting block 11 is rotatably connected relative to the axis inside the guide rod 8. When the adjusting block 11 is rotated to coincide with the cross-section of the guide rod 8, the guide rod 8 can slide through the sliding hole 10. Otherwise, the sliding of the guide rod 8 is restricted.

[0027] It should be noted that a connection block 12 is fixedly mounted on one end of the guide rod 8 extending to the outside of the extension frame 5 , and the connection block 12 can facilitate pulling the guide rod 8 to slide relative to the extension frame 5 .

[0028] In this embodiment, a heat insulation board 7 is fixedly installed on one side of the mounting plate 6 facing the bubble tube 1. The heat insulation board 7 can reduce the heat conduction effect of the residual material above the mounting plate 6 during the blocking process of the mounting plate 6. The heat insulation board 7 can be made of conventional thermal insulation materials.

[0029] In this embodiment, a pushing material recovery mechanism is provided on the mounting plate 6 for recovering the residual material in the feed pipe 3. The pushing material recovery mechanism includes a propulsion component provided in the mounting plate 6 as a power source, and a push plate 13 connected to the propulsion component, wherein the push plate 13 and the inner wall cross-section of the feed pipe 3 are consistent, so that the fit of the push plate 13 relative to the feed pipe 3 is improved, thereby reducing the residual material recovery residue.

[0030] It should be noted that a connecting cover 14 is fixedly installed at the bottom of the push plate 13. The connecting cover 14 is rectangular and inverted on the mounting plate 6. The connecting cover 14 can block the gap between the push plate 13 and the mounting plate 6, thereby preventing the injection molding material from entering the extension frame 5.

[0031] The propulsion component in this embodiment includes a servo motor 19 fixedly installed in the mounting plate 6, a transmission member arranged on the power end of the servo motor 19, and a threaded rod 15 rotatably installed in the mounting plate 6. The transmission member is connected to the threaded rod 15 and can be pulled to rotate by the servo motor 19.

[0032] In this embodiment, the transmission member includes a first bevel gear 20 fixedly mounted on the output end of the servo motor 19 and a second bevel gear 18 fixedly mounted on the threaded rod 15. The first bevel gear 20 is tooth-engaged with the second bevel gear 18. When the first bevel gear 20 rotates, it can drive the second bevel gear 18 to rotate synchronously, thereby driving the threaded rod 15 to rotate.

[0033] It can be understood that the external thread of the threaded rod 15 is installed with two threaded sleeves 16, the two threaded sleeves 16 are threadedly connected to the two ends of the threaded rod 15, and a push rod 17 is rotatably installed between the threaded sleeve 16 and the push plate 13. The push rod 17 is pulled by the horizontal movement of the threaded sleeve 16, thereby achieving traction on the push plate 13.

[0034] In addition, threads are provided at both ends of the threaded rod 15 , and the two threads are in opposite directions, so that the two threaded sleeves 16 can move in different directions at the same time.

[0035] The working principle of the above embodiment is:

[0036] When the residual material in the feed pipe 3 needs to be recovered after the injection molding is completed, the adjusting block 11 on the guide rod 8 is rotated to a position flush with the guide rod 8. At this time, the guide rod 8 can slide relative to the extension frame 5 and is pushed by the elastic force of the spring 9 to make the mounting plate 6 slide toward the feed pipe 3. At this time, the mounting plate 6 blocks the feed pipe 3 and the bubble tube 1. Then, by controlling the servo motor 19, the servo motor 19 drives the first bevel gear 20 on the output end to rotate. When the first bevel gear 20 is tooth-engaged with the second bevel gear 18, it pulls the second bevel gear 18 to rotate, thereby rotating the threaded rod 15 fixedly connected to the second bevel gear 18. The threaded rod 15 rotates and the threaded sleeves 16 at both ends are pulled to move by the threaded cooperation under rotation. The threaded sleeve 16 changes the position of one end of the push rod 17, so that the push rod 17 lifts the push plate 13 to lift the residual material in the feed pipe 3 to the recovery port 4 for collection.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A residual material recovery device for automobile injection molding parts, comprising a bubble tube (1), a spiral propulsion blade (2) built into the bubble tube (1), a feed tube (3) connected to the bubble tube (1), and a recovery port (4) opened outside the feed tube (3), characterized in that: The feed pipe (3) is a square pipe, and one end of the feed pipe (3) is connected to an extension frame (5), and a blocking device for blocking the bubble tube (1) and the feed pipe (3) is arranged in the extension frame (5); The blocking device is provided with a material pushing and recovery mechanism, which comprises a propulsion member arranged in the mounting plate (6) and used as a power source, a push plate (13) connected to the propulsion member, and the propulsion member comprises a servo motor (19) fixedly mounted in the mounting plate (6) and a transmission member arranged on the power end of the servo motor (19).

2. The residual material recovery device for automobile injection molding according to claim 1 is characterized in that: The blocking device comprises a mounting plate (6) slidably connected to the inner wall of the extension frame (5) and a guide member fixedly connected to the mounting plate (6); the cross sections of the mounting plate (6) and the feed pipe (3) correspond to each other.

3. The residual material recovery device for automobile injection molding according to claim 2 is characterized in that: The guide member comprises a guide rod (8) fixedly connected to an end of the mounting plate (6) away from the feed pipe (3), and a spring (9) fixedly connected between the mounting plate (6) and the inner wall of the extension frame (5), wherein a sliding hole (10) is formed through the extension frame (5), and the guide rod (8) is slidably connected to the sliding hole (10).

4. The residual material recovery device for automobile injection molding according to claim 3 is characterized in that: An adjusting block (11) is rotatably mounted on one end of the guide rod (8) close to the mounting plate (6); the guide rod (8) and the sliding hole (10) are both rectangular; and the adjusting block (11) is a rectangular block with a size equal to the cross section of the guide rod (8).

5. The residual material recovery device for automobile injection molding according to claim 4 is characterized in that: A connecting block (12) is fixedly mounted on one end of the guide rod (8) extending to the outside of the extension frame (5).

6. The residual material recovery device for automobile injection molding according to claim 1, characterized in that: A heat insulation plate (7) is fixedly mounted on a side surface of the mounting plate (6) facing the bubble tube (1).

7. The residual material recovery device for automobile injection molding according to claim 1, characterized in that: A connecting cover (14) is also fixedly mounted on the bottom of the push plate (13), and the connecting cover (14) is rectangular and inverted on the mounting plate (6).

8. The residual material recovery device for automobile injection molding according to claim 1, characterized in that: The transmission member comprises a first bevel gear (20) fixedly mounted on the output end of the servo motor (19) and a second bevel gear (18) fixedly mounted on the threaded rod (15), wherein the first bevel gear (20) is tooth-engaged with the second bevel gear (18).

9. The residual material recovery device for automobile injection molding according to claim 8, characterized in that: Two threaded sleeves (16) are installed on the external threads of the threaded rod (15), the two threaded sleeves (16) are threadedly connected to the two ends of the threaded rod (15), and a push rod (17) is rotatably installed between the threaded sleeve (16) and the push plate (13).

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