Air ring processing equipment for film blowing machinery

Abstract

The utility model relates to film blowing machinery air ring machining equipment which comprises a mounting cylinder, a rotating plate is rotationally mounted in the mounting cylinder, an unfolding clamping structure is arranged at the top of the rotating plate, a driving unit is arranged at the bottom of the rotating plate, and an auxiliary grinding structure is arranged at the top of the mounting cylinder. The unfolding clamping structure comprises a base fixedly installed on the top of the rotating plate. According to the machining equipment for the film blowing mechanical air ring, the three external threaded rods and the hollow connecting rod which are connected in a crossed mode can push the three external expansion plates to expand outwards by controlling the external threaded rods to be reversed, then the film blowing mechanical air ring can be extruded and fixed, and then welding operation can be conducted on the exterior of the film blowing mechanical air ring; and then the servo motor drives the unfolding clamping structure to rotate so that the air ring can be driven to rotate to the other part, at the moment, the other part of the air ring can be welded, the workload of workers can be greatly reduced through circulation, and therefore the machining efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air ring processing, in particular to an air ring processing device for a blown film machine. Background Art

[0002] The air ring of a blown film machine is an important component of a blown film unit in plastic processing machinery. The main function of the air ring is to cool and shape the film bubble extruded from the die head and blown into shape. The processing process of the air ring of a blown film machine involves a variety of equipment and processes, including numerical control processing equipment, metal grinding equipment, airtightness detection equipment, etc.

[0003] In the traditional air ring welding process, there is a significant challenge, that is, manual rotation of the air ring is required to complete all-round welding. Manual rotation of the air ring not only has a high labor intensity, but also requires operators to have high skills and patience. This operation method is not only inefficient, but also easy to cause fatigue for workers after long-term operation, affecting the welding quality. Therefore, an air ring processing device for a blown film machine is proposed to solve the above problems. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an air ring processing device for a blown film machine to overcome the deficiencies in the above prior art.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: An air ring processing device for a blown film machine includes a mounting cylinder, a rotating plate is rotatably mounted inside the mounting cylinder, an unfolding and clamping structure is arranged at the top of the rotating plate, a driving unit is arranged at the bottom of the rotating plate, and an auxiliary grinding structure is arranged at the top of the mounting cylinder.

[0006] The unfolding and clamping structure includes a base fixedly mounted on the top of the rotating plate, three solid connecting rods are rotatably mounted outside the base, an external threaded rod is rotatably mounted on the top of the base, an internal threaded ring cylinder is threadedly mounted on the external threaded rod, three hollow connecting rods are rotatably mounted outside the internal threaded ring cylinder, the three solid connecting rods are respectively rotatably mounted inside the three hollow connecting rods, the solid connecting rods and the hollow connecting rods are cross-rotatably connected, shaft seats are rotatably mounted at the tops of the three solid connecting rods, outer expanding plates are rotatably mounted at the bottoms of the three hollow connecting rods, and the three shaft seats are respectively slidably mounted inside the three outer expanding plates.

[0007] The driving unit includes a servo motor fixedly mounted at the bottom of the mounting cylinder, and the output shaft at the top of the servo motor penetrates to the inside of the mounting cylinder and is fixedly connected to the bottom of the rotating plate.

[0008] The beneficial effects of the present utility model are as follows: By reversing the control of the external threaded rod, the three cross-connected external threaded rods and the hollow connecting rods can push the three outward-expanding plates to expand outward, thereby squeezing and fixing the blown film machine air ring. Then, welding operations can be carried out on the outside of the blown film machine air ring. Subsequently, the servo motor drives the expansion and clamping structure to rotate, which can drive the air ring to rotate to another position. At this time, welding can be carried out on another part of the air ring. By repeating this cycle, the workload of personnel can be greatly reduced, thus significantly improving the processing efficiency.

[0009] On the basis of the above technical solutions, the present utility model can be further improved as follows.

[0010] Further, the auxiliary grinding structure includes a support seat fixedly installed on the top of the installation cylinder. A limiting frame is fixedly installed on the right side of the support seat. A pull rod penetrating through the left side of the support seat is slidably installed on the right side of the limiting frame. A grinding block is fixedly installed on the left side of the pull rod.

[0011] Further, two anti-blocking rings are fixedly installed on the outer part of the pull rod. The two anti-blocking rings are respectively a first anti-blocking ring and a second anti-blocking ring. One end of the first anti-blocking ring is close to the left side of the support seat, and the second anti-blocking ring is located on the right side of the limiting frame. A spring sleeved on the outer part of the pull rod is fixedly installed on the right side of the first anti-blocking ring. The spring is movably installed inside the limiting frame.

[0012] Further, moving blocks penetrating through the inside of the rotating plate are fixedly installed at the bottoms of the three outward-expanding plates. The three moving blocks are all slidably installed inside the rotating plate.

[0013] Further, a standing frame is fixedly installed at the bottom of the installation cylinder. The standing frame is sleeved on the outside of the servo motor.

[0014] Further, sponge pads are fixedly installed on the outer sides of the three outward-expanding plates. Description of the Drawings

[0015] Figure 1 Schematic diagram of the overall structure of the present utility model Figure 1 ;

[0016] Figure 2 Schematic diagram of another perspective of the overall structure of the present utility model Figure 2 ;

[0017] Figure 3 Schematic diagram of the disassembled structure of the present utility model Figure 3 ;

[0018] Figure 4 Schematic diagram of the connection structure of the solid connecting rod and the hollow connecting rod of the present utility model Figure 3 ;

[0019] Figure 5 For the present utility modelFigure 1 Schematic diagram of the enlarged structure at A in the middle Figure 4 。

[0020] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Installation cylinder; 2. Rotating plate; 3. Base; 4. Solid connecting rod; 5. External threaded rod; 6. Internal threaded ring cylinder; 7. Hollow connecting rod; 8. Shaft seat; 9. Outer expansion plate; 10. Servo motor; 11. Support seat; 12. Limit frame; 13. Pull rod; 14. Grinding block; 15. Resistance ring; 16. Spring; 17. Moving block; 18. Standing frame; 19. Sponge pad. Specific implementation mode

[0022] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0023] Embodiment 1, a processing device for a blown film machine air ring, includes an installation cylinder 1. A rotating plate 2 is rotatably installed inside the installation cylinder 1. An unfolding and clamping structure is arranged at the top of the rotating plate 2, and a driving unit is arranged at the bottom of the rotating plate 2. An auxiliary grinding structure is arranged at the top of the installation cylinder 1.

[0024] The unfolding and clamping structure includes a base 3 fixedly installed at the top of the rotating plate 2. Three solid connecting rods 4 are rotatably installed outside the base 3. An external threaded rod 5 is rotatably installed at the top of the base 3. An internal threaded ring cylinder 6 is threadedly installed outside the external threaded rod 5. Three hollow connecting rods 7 are rotatably installed outside the internal threaded ring cylinder 6. The three solid connecting rods 4 are respectively rotatably installed inside the three hollow connecting rods 7. The solid connecting rods 4 and the hollow connecting rods 7 are cross-rotatably connected. The tops of the three solid connecting rods 4 are all rotatably installed with shaft seats 8, and the bottoms of the three hollow connecting rods 7 are all rotatably installed with outer expansion plates 9. The three shaft seats 8 are respectively slidably installed inside the three outer expansion plates 9.

[0025] The driving unit includes a servo motor 10 fixedly installed at the bottom of the installation cylinder 1. The top output shaft of the servo motor 10 penetrates to the inside of the installation cylinder 1 and is fixedly connected to the bottom of the rotating plate 2.

[0026] During use, first place the blown film machine air ring to be processed on the outside of the three outward expansion plates 9. Subsequently, control the reverse rotation of the external threaded rod 5 to force the internal threaded ring cylinder 6 to descend. After the internal threaded ring cylinder 6 descends, the three cross-connected external threaded rods 5 and the hollow connecting rods 7 will expand. After the three external threaded rods 5 and the hollow connecting rods 7 expand, they will push the three outward expansion plates 9 to expand outward, and then the blown film machine air ring can be fixed. After that, welding operations can be carried out on the outside of the blown film machine air ring. When a part of the air ring is welded, the servo motor 10 can be controlled to start. Subsequently, the servo motor 10 drives the expansion clamping structure to rotate, which can drive the air ring to rotate to another part. At this time, another part of the air ring can be welded. By repeating this process, the workload of personnel can be greatly reduced, thus significantly improving the processing efficiency. Finally, control the forward rotation of the external threaded rod 5 to force the internal threaded ring cylinder 6 to rise. After the internal threaded ring cylinder 6 rises, the three cross-connected external threaded rods 5 and the hollow connecting rods 7 will fold up, and at this time, the processed blown film machine air ring can be removed.

[0027] Embodiment 2 is a further improvement based on Embodiment 1, and the specific details are as follows:

[0028] The auxiliary grinding structure includes a support seat 11 fixedly installed on the top of the installation cylinder 1. A limit frame 12 is fixedly installed on the right side of the support seat 11. A pull rod 13 that penetrates to the left side of the support seat 11 is slidably installed on the right side of the limit frame 12. A grinding block 14 is fixedly installed on the left side of the pull rod 13.

[0029] The pull rod 13 can be restricted to move on the top of the installation cylinder 1 through the support seat 11 and the pull rod 13. Pushing the pull rod 13 to move left can make the grinding block 14 contact the outside of the blown film machine air ring. At this time, as the blown film machine air ring rotates, its outside can be ground and polished.

[0030] Embodiment 3 is a further improvement based on Embodiment 1, and the specific details are as follows:

[0031] Two resistance rings 15 are fixedly installed on the outside of the pull rod 13. The two resistance rings 15 are respectively a first resistance ring and a second resistance ring. The first resistance ring is close to the left end of the support seat 11, and the second resistance ring is located on the right side of the limit frame 12. A spring 16 sleeved on the outside of the pull rod 13 is fixedly installed on the right side of the first resistance ring. The spring 16 is movably installed inside the limit frame 12.

[0032] When the spring 16 expands, it can automatically push the pull rod 13 inside the first resistance ring to move left, and the grinding block 14 can be in close contact with the blown film machine air ring. At this time, the installed second resistance ring can limit the position of the pull rod 13 to prevent the pull rod 13 from moving too far to the left.

[0033] Example 4. This example is a further improvement based on Example 1, and the specific content is as follows:

[0034] At the bottom of each of the three outward expansion plates 9, a moving block 17 penetrating into the inside of the rotating plate 2 is fixedly installed, and the three moving blocks 17 are all slidably installed inside the rotating plate 2.

[0035] The three outward expansion plates 9 are restricted to slide on the top of the rotating plate 2 through the three moving blocks 17, so that the three outward expansion plates 9 are more stable when stretching and moving.

[0036] Example 5. This example is a further improvement based on Example 1, and the specific content is as follows:

[0037] A standing frame 18 is fixedly installed at the bottom of the installation cylinder 1, and the standing frame 18 is sleeved outside the servo motor 10.

[0038] The bottom of the device can be supported by the installed standing frame 18.

[0039] Example 6. This example is a further improvement based on Example 1, and the specific content is as follows:

[0040] Sponge pads 19 are fixedly installed on the outer sides of the three outward expansion plates 9. By contacting the inner wall of the air ring through the installed sponge pads 19, the abrasion between the air ring and the outward expansion plates 9 can be reduced.

[0041] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A processing device for a blown film machine air ring, comprising a mounting cylinder (1), characterized in that: A rotating plate (2) is rotatably installed inside the installation cylinder (1). An unfolding and clamping structure is provided at the top of the rotating plate (2), a driving unit is provided at the bottom of the rotating plate (2), and an auxiliary grinding structure is provided at the top of the installation cylinder (1). The unfolding and clamping structure includes a base (3) fixedly installed at the top of the rotating plate (2). Three solid connecting rods (4) are rotatably installed outside the base (3). An external threaded rod (5) is rotatably installed at the top of the base (3). An internal threaded ring cylinder (6) is threadedly installed on the external threaded rod (5). Three hollow connecting rods (7) are rotatably installed outside the internal threaded ring cylinder (6). The three solid connecting rods (4) are respectively rotatably installed inside the three hollow connecting rods (7). The solid connecting rods (4) and the hollow connecting rods (7) are cross-rotatably connected. Axle seats (8) are rotatably installed at the tops of the three solid connecting rods (4). Outer expansion plates (9) are rotatably installed at the bottoms of the three hollow connecting rods (7). The three axle seats (8) are respectively slidably installed inside the three outer expansion plates (9). The driving unit includes a servo motor (10) fixedly installed at the bottom of the installation cylinder (1). The output shaft at the top of the servo motor (10) penetrates to the inside of the installation cylinder (1) and is fixedly connected to the bottom of the rotating plate (2).

2. The processing equipment for a blown film machine air ring according to claim 1, characterized in that: The auxiliary grinding structure includes a support seat (11) fixedly installed at the top of the installation cylinder (1). A limit frame (12) is fixedly installed on the right side of the support seat (11). A pull rod (13) that penetrates to the left side of the support seat (11) is slidably installed on the right side of the limit frame (12). A grinding block (14) is fixedly installed on the left side of the pull rod (13).

3. The processing equipment for a blown film machine air ring according to claim 2, characterized in that: Two blocking rings (15) are fixedly installed on the external of the pull rod (13). The two blocking rings (15) are respectively a first blocking ring and a second blocking ring. The first blocking ring is close to one end on the left side of the support seat (11). The second blocking ring is located on the right side of the limit frame (12). A spring (16) sleeved on the external of the pull rod (13) is fixedly installed on the right side of the first blocking ring. The spring (16) is movably installed inside the limit frame (12).

4. A processing device for a blown film machine air ring according to claim 1, characterized in that: Moving blocks (17) penetrating to the inside of the rotating plate (2) are fixedly installed at the bottoms of the three outer expansion plates (9). The three moving blocks (17) are all slidably installed inside the rotating plate (2).

5. The processing equipment for a blown film machine air ring according to claim 1, characterized in that: A standing frame (18) is fixedly installed at the bottom of the installation cylinder (1). The standing frame (18) is sleeved on the external of the servo motor (10).

6. A processing device for a blown film machine air ring according to claim 1, characterized in that: Sponge pads (19) are fixedly installed on the outer sides of the three outer expansion plates (9).

Images