Polyolefin two-way stretching printing heat shrinkage film blowing equipment
By introducing a cleaning mechanism and a limiting mechanism into the film blowing equipment, the small bubble problem in the film caused by roller dirt is solved, and the film quality is improved and the convenience of brush plate replacement is achieved.
Patent Information
- Application Number
- CN202422176340.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When traditional polyolefin bidirectional stretch printing heat shrink film blowing equipment uses roller to extrude, it may cause unevenness due to dirt on the roller, which may cause small bubbles in the film and affect the film quality.
A cleaning mechanism is designed, including a guide rod, a brush plate and a limiting mechanism. The brush plate is driven by a spring to tightly fit the roller for cleaning, and the brush plate is quickly disassembled and assembled through the limiting mechanism to avoid dirt affecting the membrane quality.
It effectively avoids the generation of small bubbles in the film, improves the film quality, and simplifies the replacement process of the brush plate and improves work efficiency.
Smart Images
Figure CN223173560U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyolefin biaxially oriented printed heat shrinkable film processing, and specifically relates to a blown film device for polyolefin biaxially oriented printed heat shrinkable film. Background Art
[0002] The biaxially oriented polyolefin shrink film is a relatively environment-friendly packaging film, which is the full name of the POF heat shrinkable film. It has the characteristics of high transparency, high shrinkage rate, high toughness, high heat resistance, antistatic, cold resistance, safety and reliability. It is a plastic film product that is widely used in the heat shrinkable packaging industry at present.
[0003] When the traditional blown film device for polyolefin biaxially oriented printed heat shrinkable film uses rollers to extrude the film after blowing, due to the possible dirt on the rollers, the rollers may be uneven, and small bubbles may be formed in the film during extrusion, which will affect the quality of the film. Therefore, through technological innovation and design optimization, it is necessary to optimize a blown film device for polyolefin biaxially oriented printed heat shrinkable film. Summary of the Utility Model
[0004] When the traditional blown film device for polyolefin biaxially oriented printed heat shrinkable film uses rollers to extrude the film after blowing, due to the possible dirt on the rollers, the rollers may be uneven, and small bubbles may be formed in the film during extrusion, which will affect the quality of the film, in order to solve the above problems, the embodiment of the present application provides a blown film device for polyolefin biaxially oriented printed heat shrinkable film. By setting a cleaning mechanism to clean the rollers, it is avoided that more dirt on the rollers will cause small bubbles in the film during extrusion. At the same time, by setting a limiting mechanism, the quick disassembly and assembly of the brush plate on the cleaning mechanism can be realized, and the efficiency of replacing the brush plate is effectively improved.
[0005] The technical solution adopted by the embodiment of the present application to solve its technical problems is as follows:
[0006] A blown film device for polyolefin biaxially oriented printed heat shrinkable film, comprising:
[0007] A blown film machine, with fixed frames fixed on both sides of the bottom of the blown film machine;
[0008] A cleaning mechanism, which is arranged on the fixed frame;
[0009] Among them, the cleaning mechanism includes a guide rod passing through the fixed frame. One end of the guide rod inside the fixed frame is fixed with a baffle blocking the first spring. A first spring capable of driving the guide rod to move is sleeved outside the guide rod between the baffle and the fixed frame. A brush plate is arranged at one end of the guide rod opposite to the baffle. The first spring is in a stretched state, and the first spring will drive the guide rod to move through the baffle, so that the guide rod pushes the brush plate to closely fit the roller.
[0010] Preferably, the film blowing machine includes a film blowing machine body, and two rollers capable of clamping the film are provided at the bottom of the film blowing machine body.
[0011] Preferably, a slot is formed on one side of the fixed frame facing the roller, an insert block is arranged in the slot, a bottom plate capable of collecting dirt is arranged on one side of the fixed frame facing the roller, and the bottom plate is fixedly connected with the insert block. Inserting the insert block into the slot can realize the quick disassembly and assembly of the bottom plate, which is convenient for collecting dirt.
[0012] Preferably, a limiting mechanism capable of quickly installing the brush plate is arranged between the guide rod and the brush plate. The limiting mechanism includes a sliding groove formed on one side of the brush plate facing the fixed frame, a sliding block is arranged in the sliding groove, a guide post is arranged in the sliding groove, the guide post penetrates through the sliding block, and both ends of the guide post are fixedly connected with the brush plate. A second spring capable of applying an elastic force to the sliding block is sleeved outside the guide post. A limiting groove is formed on one side of the guide rod facing the sliding block, a limiting block is arranged in the limiting groove, and the limiting block is fixedly connected with the sliding block. Under the action of the second spring, the second spring will drive the sliding block to slide on the guide post, and the sliding block will drive the limiting block to insert into the limiting groove on the guide rod to complete the quick fixation of the brush plate. Reverse operation can remove the brush plate, thereby realizing the quick disassembly and assembly of the brush plate.
[0013] Preferably, the bottom plate is inclined, and the side of the bottom plate close to the roller is higher than the side of the bottom plate away from the roller, which is convenient for collecting dirt.
[0014] Preferably, a guide hole is formed on the fixed frame, the guide rod penetrates through the guide hole, and the guide rod can slide on the fixed frame, which is convenient for the guide rod to slide on the fixed frame.
[0015] Preferably, one end of the first spring is fixedly connected with the baffle, and the other end of the first spring is fixedly connected with the fixed frame, which is convenient for the first spring to drive the baffle to move.
[0016] Preferably, a round hole is formed on the sliding block, the guide post penetrates through the round hole, and the sliding block can slide on the guide post, which is convenient for the sliding block to slide on the guide block.
[0017] In summary, the utility model includes at least one of the following beneficial technical effects:
[0018] 1. When the first spring is in a stretched state, the first spring will drive the baffle to move, and the baffle will drive the guide rod to move, so that the guide rod pushes the brush plate to closely fit the roller, thereby cleaning the roller and avoiding the presence of a large amount of dirt on the roller from causing small bubbles in the film when squeezing the film.
[0019] 2. By pulling the slider, the slider squeezes the second spring. After aligning the brush plate with the guide rod, release the slider. Under the action of the second spring, the second spring will drive the slider to slide on the guide post, and the slider will drive the limit block to insert into the limit slot on the guide rod, completing the quick fixation of the brush plate. Reverse operation can remove the brush plate, thus realizing the quick disassembly and assembly of the brush plate and reducing the time required for staff to replace the brush plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0021] Figure 2 is a schematic diagram of the internal structure of the present utility model;
[0022] Figure 3 is a schematic diagram of the partial structure of the present utility model;
[0023] Figure 4 is a sectional view of the internal structure of the guide rod and the brush plate of the present utility model;
[0024] Figure 5 is Figure 4 an enlarged schematic view of the structure at A in
[0025] Reference numerals: 1. Blown film machine body; 2. Roller; 3. Fixed frame; 4. Bottom plate; 5. Guide rod; 6. Baffle; 7. First spring; 8. Insert block; 9. Slot; 10. Brush plate; 11. Limit block; 12. Limit slot; 13. Slider; 14. Second spring; 15. Guide post; 16. Slide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. In addition, the forms of the structures described in the following embodiments are merely examples, and the instrument placement rack related to the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0027] This embodiment introduces the specific structure of a polyolefin biaxially stretched printed heat shrinkable film blowing device, specifically referring to Figures 1 - 5 as shown, a polyolefin biaxially stretched printed heat shrinkable film blowing device includes:
[0028] A blown film machine, with fixed frames 3 fixed on both sides of the bottom of the blown film machine;
[0029] A cleaning mechanism, which is arranged on the fixed frame 3;
[0030] When the roller 2 rotates, the cleaning mechanism includes a guide rod 5 passing through the fixed frame 3. One end of the guide rod 5 inside the fixed frame 3 is fixed with a baffle 6 that blocks the first spring 7. A first spring 7 that can drive the movement of the guide rod 5 is sleeved outside the guide rod 5 between the baffle 6 and the fixed frame 3. A brush plate 10 is provided at one end of the guide rod 5 opposite to the baffle 6. The first spring 7 is in a stretched state, and the first spring 7 will drive the guide rod 5 to move through the baffle 6, so that the guide rod 5 pushes the brush plate 10 to closely fit the roller 2.
[0031] When blowing the film, the film blowing machine includes a film blowing machine body 1, and two rollers 2 capable of clamping the film are provided at the bottom of the film blowing machine body 1.
[0032] When the bottom plate 4 needs to be replaced, a slot 9 is opened on one side of the fixed frame 3 facing the roller 2. An insertion block 8 is provided in the slot 9. A bottom plate 4 capable of collecting dirt is provided on one side of the fixed frame 3 facing the roller 2. The bottom plate 4 is fixedly connected to the insertion block 8. Inserting the insertion block 8 into the inside of the slot 9 can realize the quick disassembly and assembly of the bottom plate 4, which is convenient for collecting dirt.
[0033] When the brush plate 10 needs to be replaced, a limiting mechanism capable of quickly installing the brush plate 10 is provided between the guide rod 5 and the brush plate 10. The limiting mechanism includes a sliding groove 16 opened on one side of the brush plate 10 facing the fixed frame 3. A sliding block 13 is provided in the sliding groove 16. A guide post 15 is provided in the sliding groove 16. The guide post 15 passes through the sliding block 13, and both ends of the guide post 15 are fixedly connected to the brush plate 10. A second spring 14 that can apply an elastic force to the sliding block 13 is sleeved outside the guide post 15. A limiting groove 12 is opened on one side of the guide rod 5 facing the sliding block 13. A limiting block 11 is provided in the limiting groove 12. The limiting block 11 is fixedly connected to the sliding block 13. Under the action of the second spring 14, the second spring 14 will drive the sliding block 13 to slide on the guide post 15, and the sliding block 13 drives the limiting block 11 to insert into the inside of the limiting groove 12 on the guide rod 5, completing the quick fixation of the brush plate 10. Reverse operation can remove the brush plate 10, thereby realizing the quick disassembly and assembly of the brush plate 10.
[0034] When the dirt is swept down by the brush plate 10, the bottom plate 4 is inclined, and the side of the bottom plate 4 close to the roller 2 is higher than the side of the bottom plate 4 away from the roller 2, which is convenient for collecting dirt.
[0035] In addition, a guide hole is provided on the fixed frame 3, and the guide rod 5 passes through the guide hole. The guide rod 5 can slide on the fixed frame 3, which is convenient for the guide rod 5 to slide on the fixed frame 3.
[0036] When the first spring 7 drives the baffle 6, one end of the first spring 7 is fixedly connected to the baffle 6, and the other end of the first spring 7 is fixedly connected to the fixed frame 3, which is convenient for the first spring 7 to drive the baffle 6 to move.
[0037] More specifically, a round hole is formed in the sliding block 13, and the guiding column 15 passes through the round hole. The sliding block 13 can slide on the guiding column 15, facilitating the sliding of the sliding block 13 on the guiding block.
[0038] When the staff starts the film blowing machine, the film will be blown into a cylindrical shape by the film blowing machine. The bottom end of the film will be squeezed into a sheet shape by the two rollers 2. As the roller 2 rotates, since the first spring 7 is in a stretched state, the first spring 7 will drive the baffle 6 to move, and the baffle 6 will drive the guiding rod 5 to move, so that the guiding rod 5 pushes the brush plate 10 to closely fit the roller 2, thereby cleaning the roller 2 to avoid the presence of a large amount of dirt on the roller causing small bubbles in the film when squeezing the film. At the same time, when the brush plate 10 needs to be replaced after being used for a period of time, first pull the sliding block 13, so that the sliding block 13 squeezes the second spring 14. After aligning the brush plate 10 with the guiding rod 5, release the sliding block 13. Under the action of the second spring 14, the second spring 14 will drive the sliding block 13 to slide on the guiding column 15, and the sliding block 13 will drive the limiting block 11 to insert into the limiting groove 12 on the guiding rod 5, completing the quick fixation of the brush plate 10. Reverse operation can remove the brush plate 10, thereby realizing the quick disassembly and assembly of the brush plate 10 and reducing the time required for the staff to replace the brush plate 10.
[0039] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.
Claims
1. A biaxially oriented polyolefin heat-shrinkable printing blown film equipment, characterized in that Comprising: A film blowing machine, with fixed frames (3) fixed on both sides of the bottom of the film blowing machine; A cleaning mechanism, which is arranged on the fixed frame (3); Among them, the cleaning mechanism includes a guide rod (5) passing through the fixed frame (3). One end of the guide rod (5) inside the fixed frame (3) is fixed with a baffle (6). A first spring (7) is sleeved outside the guide rod (5) between the baffle (6) and the fixed frame (3). A brush plate (10) is arranged at one end of the guide rod (5) opposite to the baffle (6).
2. The blown film equipment for a biaxially oriented printed heat shrinkable polyolefin film according to claim 1, wherein: The film blowing machine includes a film blowing machine body (1), and two rollers (2) are arranged at the bottom of the film blowing machine body (1).
3. The blown film equipment for a biaxially oriented printed heat shrinkable polyolefin film according to claim 1, characterized in that: A slot (9) is opened on one side of the fixed frame (3) facing the roller (2). An insertion block (8) is arranged in the slot (9). A bottom plate (4) is arranged on one side of the fixed frame (3) facing the roller (2), and the bottom plate (4) is fixedly connected with the insertion block (8).
4. The blown film equipment for a biaxially oriented printed heat-shrinkable polyolefin film according to claim 1, wherein: A limiting mechanism is arranged between the guide rod (5) and the brush plate (10). The limiting mechanism includes a sliding slot (16) opened on one side of the brush plate (10) facing the fixed frame (3). A sliding block (13) is arranged in the sliding slot (16). A guide post (15) is arranged in the sliding slot (16). The guide post (15) passes through the sliding block (13). Both ends of the guide post (15) are fixedly connected with the brush plate (10). A second spring (14) is sleeved outside the guide post (15). A limiting slot (12) is opened on one side of the guide rod (5) facing the sliding block (13). A limiting block (11) is arranged in the limiting slot (12), and the limiting block (11) is fixedly connected with the sliding block (13).
5. The blown film equipment for a biaxially stretched printed heat-shrinkable polyolefin film according to claim 3, characterized in that: The bottom plate (4) is inclined, and the side of the bottom plate (4) close to the roller (2) is higher than the side of the bottom plate (4) far from the roller (2).
6. The blown film equipment for biaxially stretched printed heat-shrinkable polyolefin film according to claim 1, characterized in that: A guide hole is arranged on the fixed frame (3), and the guide rod (5) passes through the guide hole. The guide rod (5) can slide on the fixed frame (3).
7. The blown film equipment for a biaxially oriented printed heat-shrinkable polyolefin film according to claim 4, characterized in that: One end of the first spring (7) is fixedly connected with the baffle (6), and the other end of the first spring (7) is fixedly connected with the fixed frame (3).
8. A blowing film device for a biaxially oriented printed heat-shrinkable polyolefin film according to claim 7, characterized in that: A round hole is opened on the sliding block (13), and the guide post (15) passes through the round hole. The sliding block (13) can slide on the guide post (15).