Novel air ring structure of film blowing machine

Abstract

The utility model provides a novel air ring structure of a film blowing machine. A fixing piece is arranged in an air ring frame in a sliding manner, a circular groove is formed in the fixing piece, an annular replacement groove is formed in the fixing piece, and oil absorption paper is placed in the annular replacement groove; a pop-up mechanism is arranged in the fixing piece; the fixing piece is composed of two symmetrically-arranged fixing frames, and the two fixing frames are connected through a pop-up mechanism. Clamping pieces for limiting the fixing frame are arranged in the ring seat and the air ring frame and comprise pull rods, sliding grooves are formed in the ring seat and the air ring frame in a communicating mode, fixing blocks are fixedly arranged in the sliding grooves, and the pull rods are arranged in the sliding grooves in a sliding mode; one end of the pull rod penetrates through the fixing block and extends out of the ring seat, and the other end of the pull rod is provided with a clamping block; a clamping groove is formed in the fixed frame; the outer surface of the pull rod is sleeved with a first spring, one end of the first spring is connected with the fixing block, and the other end is connected with the clamping block. And only the fixing frame needs to be controlled to move downwards, the clamping piece can automatically limit the fixing frame, and the overall fixing time of the fixing frame is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of film blowing machines, and particularly relates to a novel air ring structure of a film blowing machine. Background Art

[0002] A film blowing machine is a machine that heats and melts plastic particles and then blows them into films. During the process of processing plastic particles into films, an air ring is usually required to cool and shape them. The air ring is an important component of the film blowing unit in plastic processing machinery, and it has a great impact on the quality and output of blown film products.

[0003] A patent with the publication number CN220681372U discloses an air ring structure for a film blowing machine, which includes an air ring main body. The air ring main body includes a ring seat and an air ring arranged inside the ring seat. An annular fixing frame is connected to the inner side of the air ring in a threaded manner, and an oil suction component is arranged on the inner wall of the annular fixing frame; threads are arranged on both the inner wall of the air ring and the outer wall of the annular fixing frame, and the threads of the air ring are adapted to the threads of the annular fixing frame; a fixing block is fixedly arranged on the top of the annular fixing frame.

[0004] In the above solution, the annular fixing frame can be taken out of the air ring by rotating the fixing block, so as to replace the oil suction component. After the replacement of the oil suction component is completed, the annular fixing frame can be screwed into the air ring by rotating the fixing block in the reverse direction, so as to limit and fix the annular fixing frame. Due to the particularity of the threaded connection itself, every time the annular fixing frame is fixed, the threads on the air ring and the annular fixing frame need to be aligned. Slight deviation during the alignment process will cause the annular fixing frame to be unable to rotate. At this time, the annular fixing frame needs to be taken out and the threads of the two need to be aligned again. This greatly increases the fixing time of the annular fixing frame, and the overall practicality is relatively low. Summary of the Utility Model

[0005] To solve the problems in the background art, the utility model provides a novel air ring structure of a film blowing machine.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A new air ring structure for a blown film machine, a fixing member is slidably arranged along the vertical direction inside the air ring frame. A circular groove is opened at the top of the fixing member, and an annular replacement groove is opened on the inner wall of the fixing member. An oil-absorbing paper is placed in the annular replacement groove; a plurality of placement grooves are opened in the fixing member, and a pop-up mechanism is arranged in each placement groove; the fixing member is composed of two symmetrically arranged fixing frames, and the two fixing frames are connected by a pop-up mechanism; a clamping member for limiting the fixing frame is arranged inside the ring seat and the air ring frame. The clamping member includes a pull rod. A sliding groove is communicated and opened inside the ring seat and the air ring frame. A fixing block is fixedly arranged in the sliding groove, and the pull rod is slidably arranged in the sliding groove; one end of the pull rod slidably penetrates through the fixing block and extends to the outside of the ring seat, and a clamping block is fixedly arranged at the other end of the pull rod; a clamping groove which is clamped and matched with the clamping block is opened on the surface of the fixing frame; a first spring is sleeved on the outer surface of the pull rod. One end of the first spring is fixedly connected with the fixing block, and the other end is fixedly connected with the clamping block.

[0008] Further, the pop-up mechanism includes a second spring. One end of the second spring is fixedly connected with one of the fixing frames, and the other end is fixedly connected with the other fixing frame.

[0009] Further, a plurality of pop-up limiting components are arranged inside the two fixing frames; the pop-up limiting component includes a limiting block. A limiting rod is fixedly arranged on one of the fixing frames, and a limiting groove which is slidably matched with the limiting rod is opened on the other fixing frame; the limiting block is fixedly connected to the end of the limiting rod located inside the limiting groove. A rectangular groove which is slidably matched with the limiting block is opened inside the fixing frame, and the rectangular groove is communicated with the limiting groove.

[0010] Further, the clamping block is trapezoidally arranged, the bottom of the fixing frame is beveled, and the bottom of the fixing frame is adapted to the trapezoidal bevel of the clamping block.

[0011] The present application has the following beneficial effects:

[0012] Only by controlling the downward movement of the fixing frame, the clamping member will automatically complete the limitation of the fixing frame, greatly reducing the overall fixing time of the fixing frame, and having high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features and advantages of the exemplary embodiments of the present utility model will become easily understood. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the sectional view of the present utility model;

[0016] Figure 3 It is a schematic diagram of the second spring structure of the present utility model.

[0017] Explanation of reference numerals:

[0018] 1. Ring seat; 2. Wind ring frame; 3. Fixed frame; 4. Oil-absorbing paper; 5. Pull rod; 6. Fixed block; 7. First spring; 8. Clamping block; 9. Limit rod; 10. Limit block; 11. Second spring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1-3 shown, the technical solution adopted by the present utility model is as follows: A new type of air ring structure for a blown film machine includes a ring seat 1, a rectangular through hole is opened on the ring seat 1, and a wind ring frame 2 is fixedly arranged in the rectangular through hole. A through groove is opened on the wind ring frame 2, and a fixing member is slidably arranged up and down in the through groove. A circular groove is opened at the top of the fixing member, an annular replacement groove is opened on the inner wall of the fixing member, an oil-absorbing paper 4 is placed in the annular replacement groove, the circular groove communicates with the annular replacement groove, and also communicates with the through groove in the wind ring frame 2.

[0021] A plurality of placement grooves are opened in the fixing member, and a pop-up mechanism is arranged in each placement groove. The fixing member is composed of two symmetrically arranged fixing frames 3, and the two fixing frames 3 are connected by a pop-up mechanism. The pop-up mechanism includes a second spring 11, one end of the second spring 11 is fixedly connected to one of the fixing frames 3, and the other end of the second spring 11 is fixedly connected to the other fixing frame 3.

[0022] Moreover, the second spring 11 is always in a compressed state, so that when the fixing member is separated from the wind ring frame 2, the two fixing frames 3 automatically move away from each other, facilitating the replacement of the oil-absorbing paper 4.

[0023] A plurality of limit grooves and rectangular grooves are opened in one of the fixing frames 3, the number of the limit grooves and the rectangular grooves is equal and they correspond to each other and communicate. A pop-up limit component is arranged in each limit groove. The pop-up limit component includes a limit rod 9, a limit block 10 is fixedly arranged at one end of the limit rod 9, and the end of the limit rod 9 where the limit block 10 is arranged and the limit block 10 are slidably arranged in the limit groove. Moreover, the limit block 10 is in sliding limit cooperation with the rectangular groove. The end of the limit rod 9 away from the limit block 10 is fixedly connected to the fixing frame 3 without the limit groove.

[0024] When the two fixed frames 3 move away from each other, it will drive the limit rod 9 to slide in the limit groove, and then drive the limit block 10 to slide in the rectangular groove. The rectangular groove limits the sliding distance of the limit block 10 to prevent the two fixed frames 3 from moving away from each other too far, which is not conducive to the replacement of the oil-absorbing paper 4.

[0025] There are two clamping parts provided on the ring seat 1 and the air ring frame 2. The two clamping parts are in one-to-one correspondence and cooperation with the two fixed frames 3 for limiting the two fixed frames 3.

[0026] The clamping part includes a fixed block 6. The ring seat 1 and the air ring frame 2 are provided with sliding grooves along the radial direction of the fixed part. The fixed block 6 is fixedly installed in the sliding groove. A pull rod 5 is slidably arranged in the sliding groove. One end of the pull rod 5 slidably penetrates through the fixed block 6 and extends to the outside of the ring seat 1. The other end of the pull rod 5 is fixedly provided with a clamping block 8. A first spring 7 is sleeved on the outer surface of the pull rod 5. One end of the first spring 7 is fixedly connected with the fixed block 6, and the other end of the first spring 7 is fixedly connected with the clamping block 8.

[0027] A clamping groove for clamping and cooperating with the clamping block 8 is opened on the outer surface of the fixed frame 3. The clamping block 8 is trapezoidally arranged, and the bottom of the fixed frame 3 is inclined and adapted to the trapezoidal inclined surface of the clamping block 8.

[0028] When the two fixed frames 3 slide downward, the clamping block 8 will be clamped in the clamping groove with the assistance of the first spring 7 to complete the limitation of the fixed frame 3.

[0029] Working principle: When a new oil-absorbing paper 4 needs to be replaced, pull the pull rod 5 outwards. The pull rod 5 drives the clamping block 8 to slide in the direction away from the fixed part, so that the clamping block 8 disengages from the clamping groove. At this time, the first spring 7 is in a compressed state.

[0030] Then move the fixed part upwards. When the fixed part disengages from the air ring frame 2. Under the elastic action of the second spring 11, the two fixed frames 3 will move away from each other. At the same time, the limit block 10 will slide in the limit groove and the rectangular groove, so as to prevent the distance between the two fixed frames 3 from being too large.

[0031] After the two fixed frames 3 move away from each other, pass the oil-absorbing paper 4 through between the two fixed frames 3 and replace the oil-absorbing paper 4 through the annular replacement groove.

[0032] After the replacement is completed, control the two fixed frames 3 to move closer to form a fixed part.

[0033] Move the fixed part downward. When the bottom of the fixed frame 3 in the fixed part contacts the inclined surface of the clamping block 8, the clamping block 8 will slide in the direction away from the fixed part, and the first spring 7 is in a compressed state. After the fixed frame moves downward for a certain distance, at this time, the clamping groove corresponds to the position of the clamping block 8. Under the elastic action of the first spring 7, the clamping block 8 slides in the direction close to the fixed part, so that the clamping block 8 is engaged with the clamping groove, and the air ring frame 2 completes the fixation of the fixed frame 3.

Claims

1. A novel air ring structure for a film blowing machine, comprising a ring seat (1), wherein an air ring frame (2) is fixedly arranged in the ring seat (1), characterized in that: A fixing piece is slidably arranged in the wind ring frame (2) along the vertical direction, a circular groove is arranged on the top of the fixing piece, an annular replacement groove is arranged on the inner wall of the fixing piece, and oil absorbing paper (4) is placed in the annular replacement groove; a plurality of placement grooves are arranged in the fixing piece, and a pop-up mechanism is arranged in each placement groove; the fixing piece is composed of two symmetrically arranged fixing frames (3), and the two fixing frames (3) are connected by the pop-up mechanism; a clamping piece for limiting the fixing frame (3) is arranged in the ring seat (1) and the wind ring frame (2), and the clamping piece includes a pull rod (5), and the ring seat (1) and the wind ring are connected to each other. A slide groove is provided in the frame (2), a fixed block (6) is fixedly arranged in the slide groove, and a pull rod (5) is slidably arranged in the slide groove; one end of the pull rod (5) slides through the fixed block (6) and extends to the outside of the ring seat (1), and a clamping block (8) is fixedly arranged on the other end of the pull rod (5); a clamping groove for clamping with the clamping block (8) is provided on the surface of the fixed frame (3); a first spring (7) is sleeved on the outer surface of the pull rod (5), one end of the first spring (7) is fixedly connected to the fixed block (6), and the other end is fixedly connected to the clamping block (8).

2. The novel air ring structure of the film blowing machine according to claim 1 is characterized in that: The ejection mechanism comprises a second spring (11), one end of the second spring (11) being fixedly connected to one of the fixing frames (3), and the other end of the second spring (11) being fixedly connected to the other fixing frame (3).

3. The novel air ring structure of the film blowing machine according to claim 1 is characterized in that: A plurality of pop-up limit assemblies are arranged in the two fixed frames (3); the pop-up limit assemblies include a limit block (10), a limit rod (9) is fixedly arranged on one of the fixed frames (3), and a limit groove slidably matched with the limit rod (9) is opened on the other fixed frame (3); the limit block (10) is fixedly connected to the end of the limit rod (9) located in the limit groove, and a rectangular groove slidably matched with the limit block (10) is opened in the fixed frame (3), and the rectangular groove is connected to the limit groove.

4. The novel air ring structure of the film blowing machine according to claim 1 is characterized in that: The clamping block (8) is arranged in a trapezoidal shape, the bottom of the fixing frame (3) is arranged in an inclined surface, and the bottom of the fixing frame (3) is adapted to the trapezoidal inclined surface of the clamping block (8).

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