POF shrink film blow molding die build-up removal device
Patent Information
- Application Number
- CN202522275523.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0002]POF收缩膜吹塑模头积料刮除装置是一种用于清理POF（双向拉伸聚烯烃）热收缩膜吹塑机组中模头部位残留熔融物料的辅助装置，在吹膜过程中，熔融的原料通过模头挤出时，可能会有少量物料滞留或附着在模头出口（口模）表面，这些积料若不清除，经过加热碳化后可能脱落并混入薄膜，导致成品膜出现晶点、条纹或破洞等质量问题
1、本设计的一种POF收缩膜吹塑模头积料刮除装置，通过设置有刮除保护机构，刮除时遇到坚硬积料或异物时，如果过于用力，阻力矩超过最大静摩擦力矩，防滑板和活动架之间会发生打滑，从而切断动力传输，让连接板不能带动安装连接架和积料刮除刀头继续转动，避免因用力过大导致积料刮除刀头划伤或刮坏的吹塑模头表面的问题，还能避免因积料刮除刀头因过于用力断裂和飞溅的情况，显著降低操作人员的风险，有利于提升吹塑模头积料刮除效果。
Smart Images
Figure CN224781241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material scraping devices, and in particular to a material scraping device for POF shrink film blow molding die head. Background Technology
[0002] The POF shrink film blow molding die scraping device is an auxiliary device used to clean the residual molten material in the die head of the POF (biaxially oriented polyolefin) heat shrink film blow molding unit. During the blow molding process, when the molten raw material is extruded through the die head, a small amount of material may remain or adhere to the surface of the die head outlet (die). If these accumulated materials are not removed, they may fall off and mix into the film after heating and carbonization, resulting in quality problems such as crystal spots, streaks or holes in the finished film.
[0003] However, in the use of existing material scraping devices, when the blade encounters hard, unremovable material or foreign objects, excessive force can easily scratch or damage the surface of the blow molding die. Therefore, those skilled in the art have provided a material scraping device for POF shrink film blow molding dies to solve the problems mentioned in the background art. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a POF shrink film blow molding die material scraping device, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a POF shrink film blow molding die material scraping device, including a mounting frame, four blade mounting frames fixed on the outer side of the mounting frame, material scraping blades extending to the outer side inserted into the inside of the blade mounting frames, a scraping protection mechanism fixed at the bottom of the mounting frame, a grip handle fixed at the bottom of the scraping protection mechanism, and an auxiliary cleaning mechanism provided on the outer side of the grip handle; The scraping protection mechanism includes an assembly frame, an arc-shaped locking block fixed to the top of the assembly frame, a guide frame installed on the top of the assembly frame, a connecting plate fixed to the bottom of the mounting connecting frame, a support spring connected to the bottom of the connecting plate, an anti-slip plate connected to the bottom of the support spring, a movable frame placed on the top of the assembly frame, a positioning groove opened on the outer wall of the movable frame, and a guide rod fixed to the bottom of the connecting plate.
[0006] As a further improvement of this utility model: one end of the arc-shaped card block is movably inserted into the inside of the positioning groove, and the assembly frame and the grip handle are fixedly connected.
[0007] As a further improvement of this utility model: the corresponding surface of the anti-slip plate is fitted with the movable frame, and the movable frame is movably sleeved on the outside of the guide frame.
[0008] As a further improvement of this utility model, the anti-slip plate has a through hole inside, the size of which is adapted to the size of the guide frame.
[0009] As a further improvement of this utility model: the spacing between adjacent arc-shaped blocks is equal, and the support spring is sleeved on the outside of the corresponding guide rod.
[0010] As a further embodiment of this utility model: the auxiliary cleaning mechanism includes a placement frame, the placement frame has a placement groove inside, a cleaning and wiping sleeve is movably inserted into the top of the placement frame, a positioning threaded rod is fixed on one side of the cleaning and wiping sleeve, and a limit pad is fixed at one end of the positioning threaded rod.
[0011] As a further improvement of this utility model: an anti-slip pad is movably sleeved on the outer side of the positioning threaded rod, and a metal nut is threadedly connected to the outer side of the positioning threaded rod.
[0012] As a further improvement of this utility model: the placement rack and the grip handle are fixedly connected, and the size of the placement groove is adapted to the size of the cleaning and wiping sleeve.
[0013] This invention provides a POF shrink film blow molding die head material scraping device, which has the following advantages compared with the prior art: 1. This design provides a POF shrink film blow molding die head material scraping device. By incorporating a scraping protection mechanism, when encountering hard material or foreign objects during scraping, if excessive force is applied and the resistance torque exceeds the maximum static friction torque, slippage will occur between the anti-slip plate and the movable frame. This will cut off the power transmission, preventing the connecting plate from driving the mounting frame and the material scraping head to continue rotating. This avoids the problem of the material scraping head scratching or damaging the blow molding die head surface due to excessive force. It also prevents the material scraping head from breaking and splashing due to excessive force, significantly reducing the risk to operators and improving the material scraping effect of the blow molding die head.
[0014] 2. This design provides a POF shrink film blow molding die head material scraping device. By setting an auxiliary cleaning mechanism, the cleaning wiping sleeve can be removed from the placement groove and placed on the outside of the material scraping head for wiping and cleaning. After cleaning, the cleaning wiping sleeve can be simply cleaned. After multiple uses, a new cleaning wiping sleeve can be replaced. The cleaning wiping sleeve can be easily removed, placed, and fixed, achieving the purpose of easy cleaning of the material scraping head. Attached Figure Description
[0015] Figure 1 A perspective view of a POF shrink film blow molding die scraping device; Figure 2This is a schematic diagram of the scraping protection mechanism in a POF shrink film blow molding die scraping device. Figure 3 This is a front view of the handle in a POF shrink film blow molding die scraping device; Figure 4 This is a schematic diagram of the auxiliary cleaning mechanism in a POF shrink film blow molding die head material scraping device.
[0016] In the diagram: 1. Mounting bracket; 2. Blade mounting bracket; 3. Material scraping blade; 4. Scraping protection mechanism; 41. Assembly bracket; 42. Arc-shaped locking block; 43. Guide bracket; 44. Connecting plate; 45. Support spring; 46. Anti-slip plate; 47. Movable bracket; 48. Positioning slot; 49. Guide rod; 5. Grip handle; 6. Auxiliary cleaning mechanism; 61. Placement bracket; 62. Placement slot; 63. Cleaning and wiping sleeve; 64. Positioning threaded rod; 65. Limiting pad; 66. Anti-slip pad; 67. Metal nut. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-4 This utility model provides a technical solution for a POF shrink film blow molding die material scraping device: A POF shrink film blow molding die material scraping device includes a mounting frame 1, four blade mounting frames 2 are fixed on the outside of the mounting frame 1, a material scraping blade 3 extending to the outside is inserted and installed inside the blade mounting frame 2, a scraping protection mechanism 4 is fixed at the bottom of the mounting frame 1, a grip handle 5 is fixed at the bottom of the scraping protection mechanism 4, and an auxiliary cleaning mechanism 6 is provided on the outside of the grip handle 5; The scraping protection mechanism 4 includes an assembly frame 41, an arc-shaped locking block 42 fixed to the top of the assembly frame 41, a guide frame 43 mounted on the top of the assembly frame 41, a connecting plate 44 fixed to the bottom of the mounting connecting frame 1, a support spring 45 connected to the bottom of the connecting plate 44, an anti-slip plate 46 connected to the bottom of the support spring 45, a movable frame 47 placed on the top of the assembly frame 41, a positioning groove 48 opened on the outer wall of the movable frame 47, a guide rod 49 fixed to the bottom of the connecting plate 44, one end of the arc-shaped locking block 42 movably inserted into the inside of the positioning groove 48, the assembly frame 41 and the grip handle 5 fixedly connected, the corresponding surface of the anti-slip plate 46 fits against the movable frame 47, the movable frame 47 is movably sleeved on the outside of the guide frame 43, a through hole is opened inside the anti-slip plate 46, the size of the through hole is adapted to the size of the guide frame 43, the spacing between adjacent arc-shaped locking blocks 42 is equal, and the support spring 45 is sleeved on the outside of the corresponding guide rod 49.
[0019] The auxiliary cleaning mechanism 6 includes a placement rack 61, with a placement groove 62 inside the placement rack 61. A cleaning and wiping sleeve 63 is movably inserted into the top of the placement rack 61. A positioning threaded rod 64 is fixed to one side of the cleaning and wiping sleeve 63. A limit pad 65 is fixed to one end of the positioning threaded rod 64. An anti-slip pad 66 is movably sleeved on the outside of the positioning threaded rod 64. A metal nut 67 is threaded to the outside of the positioning threaded rod 64. The placement rack 61 and the grip handle 5 are fixedly connected. The size of the placement groove 62 is adapted to the size of the cleaning and wiping sleeve 63.
[0020] The working principle of this utility model is as follows: This device is equipped with a scraping protection mechanism 4. When scraping the accumulated material on the POF shrink film blow molding die head, the user holds the handle 5, places the top surface of the scraping head 3 against the material accumulation area of the blow molding die head, and then holds and rotates the handle 5 to allow the scraping head 3 to scrape the accumulated material. When encountering hard material or foreign objects during scraping, if too much force is applied, causing the resistance torque to exceed the maximum static friction torque, slippage will occur between the anti-slip plate 46 and the movable frame 47, thereby cutting off the power transmission. This prevents the connecting plate 44 from driving the mounting frame 1 and the scraping head 3 to continue rotating. If the instantaneous force is too great, it may also cause one side of the arc-shaped locking block 42 to dislodge from the positioning groove 48 corresponding to the movable frame 47, which can also cut off the power transmission. This avoids the problem of the scraping head 3 scratching or damaging the surface of the blow molding die head due to excessive force, and also avoids the situation of the scraping head 3 breaking and splashing due to excessive force. Reducing operator risk improves the material scraping effect of the blow molding die head. With the auxiliary cleaning mechanism 6, when cleaning the material scraping head 3, simply rotate the metal nut 67 so that the corresponding surface of the metal nut 67 is away from the anti-slip pad 66. This releases the fixing of the cleaning wiping sleeve 63, allowing it to be removed from the placement slot 62. The cleaning wiping sleeve 63 is then placed on the outside of the material scraping head 3 for cleaning. After cleaning, the cleaning wiping sleeve 63 can be easily cleaned. After multiple uses, a new cleaning wiping sleeve 63 can be replaced. When the cleaning wiping sleeve 63 is fixed to the top of the placement frame 61, simply insert the positioning threaded rod 64 into the preset groove of the placement frame 61, and then rotate the metal nut 67 on the outside of the positioning threaded rod 64 clockwise, pressing the corresponding surface of the metal nut 67 against the outside of the anti-slip pad 66. This facilitates the removal and fixing of the cleaning wiping sleeve 63, achieving the goal of easy cleaning of the material scraping head 3.
[0021] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A POF shrink film blow molding die head material scraping device, comprising a mounting bracket (1), characterized in that, Four blade mounting brackets (2) are fixed on the outside of the mounting bracket (1). A scraping blade (3) extending to the outside is inserted into the inside of the blade mounting bracket (2). A scraping protection mechanism (4) is fixed at the bottom of the mounting bracket (1). A grip handle (5) is fixed at the bottom of the scraping protection mechanism (4). An auxiliary cleaning mechanism (6) is provided on the outside of the grip handle (5). The scraping protection mechanism (4) includes an assembly frame (41), an arc-shaped locking block (42) is fixed on the top of the assembly frame (41), a guide frame (43) is installed on the top of the assembly frame (41), a connecting plate (44) is fixed on the bottom of the mounting connecting frame (1), a support spring (45) is connected to the bottom of the connecting plate (44), an anti-slip plate (46) is connected to the bottom of the support spring (45), a movable frame (47) is placed on the top of the assembly frame (41), a positioning groove (48) is opened on the outer wall of the movable frame (47), and a guide rod (49) is fixed on the bottom of the connecting plate (44).
2. The POF shrink film blow molding die head material scraping device according to claim 1, characterized in that, One end of the arc-shaped locking block (42) is movably inserted into the inside of the positioning groove (48), and the assembly frame (41) and the grip handle (5) are fixedly connected.
3. The POF shrink film blow molding die head material scraping device according to claim 2, characterized in that, The corresponding surface of the anti-slip plate (46) is in contact with the movable frame (47), and the movable frame (47) is movably sleeved on the outside of the guide frame (43).
4. The POF shrink film blow molding die head material scraping device according to claim 3, characterized in that, The anti-slip plate (46) has a through hole inside, the size of which is adapted to the size of the guide frame (43).
5. The POF shrink film blow molding die head material scraping device according to claim 4, characterized in that, The spacing between adjacent arc-shaped blocks (42) is equal, and the support spring (45) is sleeved on the outside of the corresponding guide rod (49).
6. The POF shrink film blow molding die head material scraping device according to claim 1, characterized in that, The auxiliary cleaning mechanism (6) includes a placement rack (61), the placement rack (61) has a placement slot (62) inside, a cleaning and wiping sleeve (63) is movably inserted into the top of the placement rack (61), a positioning threaded rod (64) is fixed on one side of the cleaning and wiping sleeve (63), and a limit pad (65) is fixed at one end of the positioning threaded rod (64).
7. The POF shrink film blow molding die head material scraping device according to claim 6, characterized in that, The outer side of the positioning threaded rod (64) is movably sleeved with an anti-slip pad (66), and the outer side of the positioning threaded rod (64) is threaded with a metal nut (67).
8. The POF shrink film blow molding die head material scraping device according to claim 7, characterized in that, The placement rack (61) and the grip handle (5) are fixedly connected, and the size of the placement slot (62) is adapted to the size of the cleaning and wiping sleeve (63).