Quick mold changing injection device for plastic bucket

Abstract

The utility model relates to injection molding technology field especially relates to plastic bucket quick mold change injection molding device, including support base plate, change membrane carousel and spacing block, the right side fixedly connected with injection molding machine body at support base plate top, the top fixedly connected with feed hopper of injection molding machine body, the left side fixedly connected with injection molding tube of injection molding machine body, the top of support base plate is provided with change membrane carousel, the bottom of change membrane carousel is equipped with a plurality of spacing block with equal interval, the front and back both sides fixedly connected with support vertical board of support base plate top, the top fixedly connected with support horizontal board of support vertical board, the left side fixedly connected with spacing block of support horizontal board, the utility model discloses through motor drive screw rod rotation, screw rod drive sliding block moves along the direction frame to injection molding tube, sliding block is driven top mould synchronous movement through change membrane carousel, until spacing block embeds corresponding spacing slot, and simultaneously injection molding tube embeds injection molding opening of lower mould, has realized the function of carousel locking.

Description

Technical Field

[0001] This utility model relates to the field of injection molding mold changing technology, and in particular to a quick mold changing injection molding device for plastic buckets. Background Technology

[0002] Plastic buckets are typically made by heating and softening plastic, then injecting it into a mold using vacuum or negative pressure to form a bucket shape. During the production of plastic buckets, it is usually necessary to make products of different sizes, which requires changing the mold before injection molding.

[0003] Common quick-change injection molding devices for plastic buckets only include the function of quickly changing molds. They can install multiple mold models on a turntable, so that changing molds only requires rotating the turntable. However, they lack the function of locking the turntable position. This can easily lead to problems when plastic is injected into the mold. The mold is subjected to force, which causes the turntable to deflect. At this time, the injection tube inserted into the mold by the injection molding machine will bend under the force, resulting in poor material feeding and affecting injection efficiency.

[0004] Therefore, to address the aforementioned issues of lacking a turntable position locking function, which can easily cause the turntable to deflect due to mold stress, resulting in bending of the injection tube and affecting feeding smoothness and injection efficiency, a quick mold change injection molding device for plastic buckets can be designed. Utility Model Content

[0005] To overcome the problem of lacking a turntable position locking function, which makes the turntable prone to deflection due to mold stress, causing the injection tube to bend under stress, thus affecting the smoothness of feeding and injection efficiency.

[0006] The technical solution of this utility model is as follows: a quick mold-changing injection molding device for plastic buckets, including a supporting base plate, a film-changing turntable, and a limiting block. The top right side of the supporting base plate is fixedly connected to the injection molding machine body, the top of the injection molding machine body is fixedly connected to the feeding funnel, and the left side of the injection molding machine body is fixedly connected to the injection pipe. A film-changing turntable is set above the supporting base plate, and multiple limiting slots are evenly spaced at the bottom of the film-changing turntable. Supporting vertical plates are fixedly connected to the front and rear sides of the top of the supporting base plate, and supporting horizontal plates are fixedly connected to the top of the supporting vertical plates. A limiting block is fixedly connected to the left side of the supporting horizontal plate. A displacement mechanism is set on the supporting base plate to control the horizontal movement of the film-changing turntable. A mold-changing mechanism is set on the film-changing turntable to adjust the horizontal position of the mold.

[0007] Preferably, the motor drives the lead screw to rotate, and the lead screw drives the slider to move towards the injection tube inside the guide frame. The slider then drives the mold on top of the film changing turntable to move towards the injection tube until the limit block is fully inserted into the corresponding limit slot. At the same time, the injection tube is inserted into the injection opening of the corresponding lower mold. This locks the position of the film changing turntable and realizes the function of turntable position locking.

[0008] Preferably, the displacement mechanism includes a limiting component and a driving component. The limiting component is used to limit the range of horizontal displacement of the film changing turntable, and the driving component is used to control the horizontal movement of the film changing turntable.

[0009] Preferably, the limiting component includes a guide frame and a slider; the guide frame is fixedly connected to the left side of the top of the support base plate, and the slider is slidably connected inside the guide frame, with the top of the slider rotatably connected to the bottom of the film changing turntable.

[0010] Preferably, the drive assembly includes a motor and a lead screw; the motor is fixedly connected to the left side of the guide frame, and the lead screw is fixedly connected to the output end of the motor. The motor is used to drive the rotation of the lead screw, and the end of the lead screw away from the motor is rotatably connected to the rear side inside the guide frame. The outer side of the lead screw is threadedly connected to the slider.

[0011] Preferably, the mold changing mechanism includes a push plate assembly and a mold assembly. The push plate assembly is used to adjust the angle of the mold changing turntable, and the mold assembly is used to connect with the injection tube.

[0012] Preferably, the pusher assembly includes handles; multiple handles are fixedly connected at equal intervals to the top of the film changing turntable.

[0013] Preferably, the mold assembly includes a lower mold, an injection opening, and an upper mold; multiple lower molds are fixedly connected at equal intervals on the top of the film changing turntable, the lower molds have an injection opening on the side near the injection tube, and the upper mold is fixedly connected to the top of the lower molds.

[0014] The beneficial effects of this utility model are:

[0015] This structure features precise positioning and automatic locking. The tight fit between the injection tube and the lower mold opening ensures the sealing of the injection process and the molding quality. The overall design is highly integrated, reducing manual intervention and improving operational safety. At the same time, the compact structure facilitates maintenance and meets the needs of efficient and stable production. The synchronous engagement of the limit block and the slot ensures the reliability of the film changing turntable locking and avoids processing deviation. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the supporting base plate structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic of the mold changing mechanism of this utility model;

[0019] Figure 4 The diagram shown is a schematic of the locking mechanism of this utility model;

[0020] Figure 5 The diagram shown is a bottom view of the structure of the film-changing turntable of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Support base plate; 11. Injection molding machine body; 12. Feed funnel; 13. Injection tube; 14. Film changing turntable; 15. Limiting slot; 16. Support vertical plate; 17. Support horizontal plate; 18. Limiting block; 211. Guide frame; 212. Slider; 221. Motor; 222. Lead screw; 311. Handle; 321. Lower mold; 322. Injection opening; 323. Upper mold. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a quick mold-changing injection molding device for plastic buckets, comprising a supporting base plate 1, a mold-changing turntable 14, and a limiting block 18. An injection molding machine body 11 is fixedly connected to the right side of the top of the supporting base plate 1. A feeding funnel 12 is fixedly connected to the top of the injection molding machine body 11, and an injection tube 13 is fixedly connected to the left side of the injection molding machine body 11. The mold-changing turntable 14 is positioned above the supporting base plate 1, and multiple limiting slots 15 are evenly spaced at the bottom of the turntable 14. Supporting vertical plates 16 are fixedly connected to the front and rear sides of the top of the supporting base plate 1, and a supporting horizontal plate 17 is fixedly connected to the top of the supporting vertical plate 16. A limiting block 18 is fixedly connected to the left side of the supporting horizontal plate 17. A displacement mechanism is provided on the supporting base plate 1 to control the mold-changing turntable. The horizontal movement of the mold changing turntable 14 is achieved by a mold changing mechanism. The mold changing mechanism is used to adjust the horizontal position of the mold. The motor 221 drives the lead screw 222 to rotate. The lead screw 222 drives the slider 212 to move linearly along the internal track of the guide frame 211 towards the injection tube 13. The slider 212 pushes the mold mounted on its top towards the injection tube 13 synchronously through the mold changing turntable 14. When the limiting block 18 is fully embedded in the corresponding limiting slot 15, the injection tube 13 is simultaneously inserted into the preset injection opening 322 of the lower mold 321. Through the cooperation of the limiting block 18 and the limiting slot 15 and the insertion of the injection tube 13 into the injection opening 322, the current position of the mold changing turntable 14 is rigidly locked, thus completing the turntable positioning function.

[0024] Please see Figures 2-5In this embodiment, the displacement mechanism includes a limiting component and a driving component. The limiting component is used to limit the range of horizontal displacement of the film changing turntable 14, and the driving component is used to control the horizontal movement of the film changing turntable 14. The limiting component and the driving component are combined to form a complete displacement mechanism, which cooperates to control the horizontal movement of the film changing turntable 14. The limiting component includes a guide frame 211 and a slider 212. The guide frame 211 is fixedly connected to the left side of the top of the support base plate 1, and the slider 212 is slidably connected inside the guide frame 211. The top of the slider 212 is rotatably connected to the bottom of the film changing turntable 14. The guide frame 211 limits the sliding range of the slider 212, so that the slider... 212 can only slide inside the guide frame 211, thereby preventing the position of the film changing turntable 14 from deviating from the injection molding machine body 11. The drive assembly includes a motor 221 and a lead screw 222. The motor 221 is fixedly connected to the left side of the guide frame 211, and the lead screw 222 is fixedly connected to the output end of the motor 221. The motor 221 is used to drive the rotation of the lead screw 222. The end of the lead screw 222 away from the motor 221 is rotatably connected to the rear side inside the guide frame 211. The outer side of the lead screw 222 is threadedly connected to the slider 212. The motor 221 drives the lead screw 222 to rotate, and the lead screw 222 drives the slider 212 to move in the direction of the injection tube 13 inside the guide frame 211.

[0025] Please see Figures 1-5 In this embodiment, the mold changing mechanism includes a push plate assembly and a mold assembly. The push plate assembly is used to adjust the angle of the mold changing turntable 14, and the mold assembly is used to dock with the injection tube 13. The push plate assembly and the mold assembly are combined to form a complete mold changing mechanism. The two cooperate with each other to adjust the position of different mold types. The push plate assembly includes a handle 311. Multiple handles 311 are fixedly connected at equal intervals on the top of the mold changing turntable 14. Pushing and pulling the handles 311 drives the mold changing turntable 14 to rotate until the specified mold type docks with the mold. The injection molding machine body 11 is aligned, and the mold assembly includes a lower mold 321, an injection opening 322, and an upper mold 323. Multiple lower molds 321 are fixedly connected at equal intervals on the top of the film changing turntable 14. The lower mold 321 has an injection opening 322 on the side near the injection tube 13. The upper mold 323 is fixedly connected to the top of the lower mold 321. The upper mold 323 can be removed by removing the bolts on the upper mold 323. Then, the plastic bucket after injection molding can be pulled out from the inside of the lower mold 321.

[0026] During operation, the mold changing turntable 14 is first rotated by pushing and pulling the lever 311 until the mold of the specified model is aligned with the injection molding machine body 11. Then, the lead screw 222 is rotated by the motor 221. The lead screw 222 drives the slider 212 to move towards the injection tube 13 inside the guide frame 211. The slider 212 pushes the mold on top of the mold changing turntable 14 towards the injection tube 13 until the limit block 18 is fully embedded in the corresponding limit slot 15. At the same time, the injection tube 13 is inserted into the injection opening 322 of the corresponding lower mold 321, thereby locking the position of the mold changing turntable 14. Then, the injection molding machine body 11 is started, and the injection molding machine body 11 injects the material into the mold through the injection tube 13. Then, the upper mold 323 is disassembled by removing the bolts on the upper mold 323. Finally, the plastic bucket that has been injected is pulled out from the lower mold 321 to complete the material removal.

[0027] Through the above steps, the motor 221 drives the lead screw 222 to rotate, and the lead screw 222 drives the slider 212 to move along the guide frame 211 toward the injection tube 13. The slider 212 drives the top mold to move synchronously via the film changing turntable 14 until the limit block 18 is embedded in the corresponding limit slot 15. At the same time, the injection tube 13 is embedded in the injection opening 322 of the lower mold 321, so that the position of the film changing turntable 14 is locked. This solves the problem that common plastic bucket quick mold changing injection devices only include the function of quick mold changing, but lack the function of turntable position locking. It is easy for the turntable to deflect due to the force of the mold, which causes the injection tube 13 to bend under force, resulting in poor material feeding and low injection efficiency.

Claims

1. A rapid mold changing injection device for plastic barrels, comprising a support base plate (1); characterized in that: It also includes a film changing turntable (14) and a limiting block (18). The injection molding machine body (11) is fixedly connected to the right side of the top of the support base plate (1). The top of the injection molding machine body (11) is fixedly connected to the feed funnel (12). The left side of the injection molding machine body (11) is fixedly connected to the injection pipe (13). The film changing turntable (14) is set above the support base plate (1). The bottom of the film changing turntable (14) is provided with multiple limiting slots (15) at equal intervals. The front and rear sides of the top of the support base plate (1) are fixedly connected to the support vertical plate (16). The top of the support vertical plate (16) is fixedly connected to the support horizontal plate (17). The left side of the support horizontal plate (17) is fixedly connected to the limiting block (18). The support base plate (1) is provided with a displacement mechanism, which is used to control the horizontal movement of the film changing turntable (14). The film changing turntable (14) is provided with a mold changing mechanism, which is used to adjust the horizontal position of the mold.

2. The rapid mold change injection molding apparatus for plastic pails of claim 1, wherein: The displacement mechanism includes a limit component and a drive component. The limit component is used to limit the range of horizontal displacement of the film changing turntable (14), and the drive component is used to control the horizontal movement of the film changing turntable (14).

3. The quick mold change injection molding device for plastic buckets according to claim 2, characterized in that: The limiting component includes a guide frame (211) and a slider (212); the guide frame (211) is fixedly connected to the left side of the top of the support base plate (1), and the slider (212) is slidably connected inside the guide frame (211). The top of the slider (212) is rotatably connected to the bottom of the film changing turntable (14).

4. The quick mold change injection molding device for plastic buckets according to claim 3, characterized in that: The drive assembly includes a motor (221) and a lead screw (222); the motor (221) is fixedly connected to the left side of the guide frame (211), and the lead screw (222) is fixedly connected to the output end of the motor (221). The motor (221) is used to drive the rotation of the lead screw (222). The end of the lead screw (222) away from the motor (221) is rotatably connected to the rear side inside the guide frame (211), and the outer side of the lead screw (222) is threadedly connected to the slider (212).

5. The quick mold change injection molding device for plastic buckets according to claim 4, characterized in that: The mold changing mechanism includes a push plate assembly and a mold assembly. The push plate assembly is used to adjust the angle of the mold changing turntable (14), and the mold assembly is used to dock with the injection tube (13).

6. The quick mold change injection molding device for plastic buckets according to claim 5, characterized in that: The pusher assembly includes handles (311); multiple handles (311) are fixedly connected at equal intervals on the top of the film changing turntable (14).

7. The quick mold change injection molding device for plastic buckets according to claim 6, characterized in that: The mold assembly includes a lower mold (321), an injection opening (322), and an upper mold (323); multiple lower molds (321) are fixedly connected at equal intervals on the top of the film changing turntable (14), and the lower mold (321) has an injection opening (322) on the side near the injection tube (13), and the upper mold (323) is fixedly connected to the top of the lower mold (321).

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