A film cutting device for a film blowing machine

Abstract

The utility model relates to the technical field of film processing discloses a film cutting device for film blowing machine, including the casing, the top fixedly connected with fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of film processing technology, and in particular to a film cutting device for a film blow molding machine. Background Technology

[0002] In modern industrial production and scientific research, many products and experiments have stringent requirements for the dimensional accuracy and edge quality of thin film materials. From flexible circuit boards in electronic devices and optical films in optical instruments to cell culture films in biomedical research, the demand for thin film cutting is widespread in different application scenarios. Developing a high-performance thin film cutting device has become an urgent industry problem to be solved.

[0003] A search revealed Chinese publication number CN210552980U, which discloses a film blow molding machine cutting device. The device includes a fixed guide rod with a slidably fixed cutting blade assembly. A vertically upward-pointing column is located in the middle of the guide rod, and a circular cutting blade is fixed to the top of the column. A retractable crossbar is provided on the circumferential side wall of the column, parallel to the guide rod and located in the same vertical plane. A rotating wheel that rotates along the crossbar is located at the free end of the crossbar. This invention can separate two bonded films and simultaneously cut a plastic film into four pieces.

[0004] The aforementioned patent describes a circular cutter 4 installed at the top of the upright 3. When the plastic film passes by, the circular cutter 4 first cuts the plastic film, dividing it into two pieces. A rotating wheel 6 is installed at the free end of the crossbar 5 to guide and separate the film. Then, the cutter on the cutter assembly 2 cuts the film into four pieces. The crossbar 5 is telescopic, and the cutter assembly 2 can also slide and be fixed on the fixed guide rod 1. Therefore, the crossbar 5 and the cutter assembly 2 can be adjusted according to the different diameters of the film tube and fixed in different positions to correspond to film tubes of different diameters. However, in the film cutting operation of the film blow molding machine, the cutting device cannot quickly add and adjust the number and position of the cutter heads as needed. Moreover, the operation of adding and adjusting the position of the cutter heads is cumbersome and inefficient, making it difficult to meet diverse production needs. Therefore, a film cutting device for the film blow molding machine is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a film cutting device for a film blow molding machine, which aims to improve the problem in the prior art where the brush plate is designed in a straight line, and when it comes into contact with road debris in front, the debris is difficult to push to the sides, thus accumulating in front of the brush plate and making it difficult for the device to move forward normally.

[0006] A film cutting device for a film blow molding machine includes a housing, a second fixing plate fixedly connected to the top of the housing, a support plate fixedly connected to the top of the second fixing plate, a first fixing plate fixedly connected to both ends of the support plate, a flattening mechanism provided inside the first fixing plate, an adjustment mechanism provided at the bottom of the support plate, and a fixing mechanism provided inside the adjustment mechanism.

[0007] The adjustment mechanism includes a fixed frame, the top of which is fixedly connected to the bottom of the support plate. A sliding block is slidably connected inside the fixed frame. A connecting block is fixedly connected to the front end of the sliding block. A cutting blade is fixedly connected to the outside of the connecting block. Two sliding plates are slidably connected inside the sliding block. A limiting block is fixedly connected to the far side of each of the two sliding plates. A connecting rod is rotatably connected to the near side of each of the two sliding plates. A rotating rod is rotatably connected to the near side of each of the two connecting rods.

[0008] Furthermore, the shell, as the basic support structure of the entire device, is made of high-strength alloy material, and the support plate is made of high-quality steel, which has good rigidity and flatness. The fixing plates at both ends are fixedly connected by bolts, which has high installation accuracy and provides a stable installation space for the flattening mechanism. The setting of the adjustment mechanism and the fixing mechanism makes the position adjustment and fixing of the cutting blade more flexible and accurate, which can meet the needs of different film cutting.

[0009] As a further description of the above technical solution:

[0010] The fixed frame has a sliding groove on its outside, the connecting block is slidably connected to the inside of the sliding groove, and a feeding roller is provided on the outside of the housing;

[0011] Furthermore, the sliding plate slides inside the sliding block one, and the limiting block is fixedly connected to the sliding plate. It can extend and retract as the sliding plate moves. Through the linkage of the connecting rod and the rotating rod, the position of the sliding block one can be flexibly controlled, thereby adjusting the position of the cutting blade.

[0012] As a further description of the above technical solution:

[0013] The outer side of the limiting block is slidably connected to the inside of the sliding block one, and the outer side of the limiting block is slidably connected to the inside of the fixing frame;

[0014] Furthermore, by restricting the sliding block to slide inside the sliding block and the fixed frame, the position of the sliding plate can be released and fixed.

[0015] As a further description of the above technical solution:

[0016] The fixing mechanism includes a fixing column, the outside of which is fixedly connected to the inside of the sliding block, a threaded column is threadedly connected to the outside of the fixing column, a guide block is fixedly connected to the inside of the threaded column, a rotating shaft is rotatably connected to the inside of the fixing column, and the outside of the guide block is slidably connected to the inside of the rotating shaft.

[0017] Furthermore, when the limiting block slides into the slot inside the fixing frame, it can fit tightly to prevent the sliding block from shifting, thereby ensuring the accuracy of the cutting blade position.

[0018] As a further description of the above technical solution:

[0019] The flattening mechanism includes a second sliding block, which is slidably connected to the inside of the first fixed plate. An upper pressure roller is rotatably connected to the outside of the second sliding block. A telescopic column is fixedly connected to the top of the second sliding block. A spring is sleeved on the outside of the telescopic column. A pressure rod is fixedly connected to the top of the telescopic column. A cylinder is fixedly connected to the top of the pressure rod. A lower pressure roller is rotatably connected to the outside of the first fixed plate.

[0020] Furthermore, the guide block is fixedly connected to the inner side of the threaded column, and can slide inside the rotating shaft as the threaded column rotates. The rotating shaft rotates flexibly inside the fixed column. Through the guiding action of the guide block, the rotation of the threaded column is converted into the rotation of the rotating rod, thereby realizing the control of the sliding plate and the limiting block, and completing the fixing and unlocking operation of the first sliding block.

[0021] As a further description of the above technical solution:

[0022] The external part of the pressure rod is slidably connected to the inside of the fixed plate, and the bottom end of the cylinder is fixedly connected to the top end of the support plate.

[0023] Furthermore, by sliding the pressure rod inside the fixed plate, the elastic force of the spring can be adjusted, thereby adjusting the pressure of the pressure roller.

[0024] As a further description of the above technical solution:

[0025] The top end of the spring is fixedly connected to the bottom end of the pressure rod, and the other end of the spring is fixedly connected to the top end of the sliding block 2.

[0026] Furthermore, the spring can uniformly transmit pressure during the extension and retraction process, and adaptively adjust the pressure of the upper pressure roller according to the actual condition of the film to ensure the consistency of the film flattening effect.

[0027] As a further description of the above technical solution:

[0028] The inner part of the fixed plate is rotatably connected to a guide roller, and the rear end of the housing is fixedly connected to a feeding plate.

[0029] Furthermore, the guide roller is mounted on the bearing seat inside the fixed plate two, which rotates flexibly. Its surface is specially treated to reduce friction, which can effectively guide the conveying direction of the film and make the film enter the flattening mechanism and cutting area smoothly. The feeding plate is fixedly connected to the rear end of the shell by welding. Its surface is smooth and its tilt angle is optimized to allow the cut film to slide down smoothly, which is convenient for subsequent collection and sorting.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, during film cutting, the operator uses the guide roller to pull the feeding roller to feed the material. According to the cutting requirements, the operator can rotate the threaded column to drive the fixed mechanism to move, so that the limiting block slides into the sliding block, realizing the free sliding of the sliding block in the fixed frame, flexibly changing the position of the cutting blade, and adding or removing the number of cutting blades as needed. After adjustment, the threaded column is rotated in the opposite direction to let the limiting block slide into the slot of the fixed frame to fix the position of the sliding block. This operation is simple and convenient, can quickly meet different cutting needs, improve the practicality of the device, and facilitate the cleaning and maintenance of the blade head.

[0032] 2. In this utility model, when the feeding roller feeds the film, the film passes through the middle of the upper and lower pressure rollers. The two rollers squeeze the film. The detection device built into the housing monitors the pressure change in real time and automatically controls the cylinder to start, causing the pressure rod to rise and fall, thereby changing the compression degree of the spring. In this way, the upper pressure roller can quickly and flexibly adjust the pressure applied to the film according to the different thicknesses and material characteristics of the film, effectively ensuring the flattening effect of the film and improving product quality. Attached Figure Description

[0033] Figure 1 This is a three-dimensional schematic diagram of a film cutting device for a film blow molding machine according to the present invention.

[0034] Figure 2 This is a schematic diagram of the material feeding plate of a film cutting device for a film blow molding machine proposed in this utility model;

[0035] Figure 3 This is a schematic diagram of the structure of a support plate for a film cutting device in a film blow molding machine according to the present invention.

[0036] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0038] Legend:

[0039] 1. Housing; 2. Support plate; 3. Adjustment mechanism; 301. Fixing frame; 302. Sliding block one; 303. Connecting block; 304. Cutting blade; 305. Sliding plate; 306. Limiting block; 307. Connecting rod; 308. Rotating rod; 4. Fixing mechanism; 401. Fixing column; 402. Threaded column; 403. Guide block; 404. Rotating shaft; 5. Fixing plate one; 6. Flattening mechanism; 601. Sliding block two; 602. Telescopic column; 603. Spring; 604. Upper pressure roller; 605. Lower pressure roller; 606. Pressing rod; 607. Cylinder; 7. Feeding roller; 8. Guide roller; 9. Feeding plate; 10. Fixing plate two. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a film cutting device for a film blow molding machine, comprising a housing 1. The housing 1 serves as the basic support structure for the entire device, providing a stable mounting platform for subsequent components and ensuring the stability and reliability of the device during operation. A fixing plate 2 10 is fixedly connected to the top of the housing 1, serving as a connection and support. A support plate 2 is fixedly connected to the top of the fixing plate 2 10, providing a plane for the installation and support of the adjusting mechanism 3 and the flattening mechanism 6, ensuring that these mechanisms can operate normally in a stable environment. Fixing plates 5 are fixedly connected to both ends of the support plate 2, which not only enhance the structural strength of the support plate 2 but also provide a mounting surface for the flattening mechanism 6. The flattening mechanism 6 is positioned and spaced to accurately flatten the film. The flattening mechanism 6 is installed inside the fixed plate 5. The flattening mechanism 6 can effectively flatten the film to ensure that the film surface is flat before entering the cutting process, thereby improving the cutting quality. The bottom end of the support plate 2 is provided with an adjustment mechanism 3. The adjustment mechanism 3 can flexibly adjust the position and number of cutting blades 304 according to the actual cutting requirements to meet different cutting specifications, which greatly improves the applicability and flexibility of the device. The adjustment mechanism 3 is provided with a fixing mechanism 4. The fixing mechanism 4 is used to firmly fix the cutting blades 304 in the corresponding position after the position is adjusted to prevent displacement during the cutting process and ensure the accuracy and stability of the cutting.

[0042] Specifically, the flattening mechanism 6 is used to flatten the film to ensure that the film is flat during cutting, and the adjusting mechanism 3 is used to adjust the position of the support plate 2, so that the position and number of the cutting blades 304 can be flexibly adjusted according to the actual cutting requirements to meet different cutting specifications.

[0043] The adjustment mechanism 3 includes a fixed frame 301, the top of which is fixedly connected to the bottom of the support plate 2. The fixed frame 301 provides a sliding track and support for the sliding block 302, ensuring that the sliding block 302 can move smoothly inside it, thereby adjusting the position of the cutting blade 304. The sliding block 302 is slidably connected inside the fixed frame 301, and a connecting block 303 is fixedly connected to the front end of the sliding block 302. The connecting block 303 connects the sliding block 302 and the cutting blade 304, enabling the sliding block 302 and the cutting blade 304 to work together and accurately transmit the movement of the sliding block 302 to the cutting blade 304. The cutting blade 304 is fixedly connected to the outside of the connecting block 303. The cutting blade 304 is the core component for film cutting, and its sharp blade can accurately cut the film into the required specifications.

[0044] Specifically, the sliding block 302 is a key component connecting the cutting blade 304 and the adjustment mechanism 3. Its sliding can drive the cutting blade 304 to move to a suitable cutting position, thereby meeting the cutting requirements of different films at different positions.

[0045] The sliding block 302 has two sliding plates 305 internally connected, which enables the sliding block 302 to be fixed and moved within the fixed frame 301. The two sliding plates 305 are fixedly connected to the opposite sides of each other with limiting blocks 306, and the two sliding plates 305 are rotatably connected to the adjacent sides of each other with connecting rods 307. The connecting rods 307 connect the sliding plates 305 and the rotating rods 308, realizing the transmission of force and the conversion of motion. The two connecting rods 307 are rotatably connected to the adjacent sides of each other with rotating rods 308. The rotation of the rotating rods 308 can drive the connecting rods 307 to move, thereby controlling the sliding of the sliding plates 305. The fixed frame 301 has a groove on its outside. The connecting block 303 is externally slidably connected to the inside of the groove. The groove provides guidance and restriction for the sliding of the connecting block 303, ensuring that the cutting blade 304 can move along the predetermined trajectory. The housing 1 is provided with a feeding roller 7, which is used to place the film roll to be cut and smoothly transport the film to the cutting area.

[0046] Specifically, the sliding plate 305 can control the extension and retraction of the limiting block 306. The limiting block 306 can effectively fix the position of the sliding block 302 by cooperating with the slot inside the fixing frame 301, ensuring that the cutting blade 304 will not be displaced during the cutting process.

[0047] The limiting block 306 is externally slidably connected to the inside of the sliding block 302, and externally slidably connected to the inside of the fixing frame 301. This sliding connection allows the limiting block 306 to move flexibly between the sliding block 302 and the fixing frame 301, achieving effective control over the position of the sliding block 302. The fixing mechanism 4 includes a fixing post 401, which is externally fixedly connected to the inside of the sliding block 302. The fixing post 401 is externally threadedly connected to a threaded post 402, and the rotation of the threaded post 402 can be achieved through its connection with the fixing post 301. The threaded engagement of the post 401 enables control of the rotating shaft 404. A guide block 403 is fixedly connected to the inner side of the threaded post 402 to ensure that the rotating shaft 404 can rotate accurately. The rotating shaft 404 is rotatably connected inside the fixed post 401. The rotation of the rotating shaft 404 can drive the rotating rod 308 to rotate, thereby controlling the sliding plate 305 and the limiting block 306. The guide block 403 is slidably connected to the outside of the rotating shaft 404. This sliding connection method ensures that the rotating shaft 404 can rotate smoothly under the guidance of the guide block 403.

[0048] Specifically, the fixed post 401 provides a support and fixation for the rotation of the threaded post 402, and the guide block 403 slides outside the rotating shaft 404, playing a guiding and force transmission role, so that while the threaded post 402 rotates outside the fixed post 401, the rotating shaft 404 rotates inside the sliding block 402.

[0049] Reference Figure 1 , Figure 3 and Figure 5 The flattening mechanism 6 includes a second sliding block 601, which is externally slidably connected to the inside of the first fixed plate 5. An upper pressure roller 604 is rotatably connected to the outside of the second sliding block 601. The upper pressure roller 604 cooperates with the lower pressure roller 605 to squeeze the film and make the film surface flat. A telescopic column 602 is fixedly connected to the top of the second sliding block 601. The telescopic column 602 can extend and retract with the movement of the second sliding block 601, and at the same time provides support and guidance for the spring 603. The spring 603 is sleeved on the outside of the telescopic column 602. The elasticity of the spring 603 can automatically adjust the pressure applied to the film by the upper pressure roller 604 according to the thickness and material characteristics of the film to ensure the flattening effect. A pressure rod 606 is fixedly connected to the top of the telescopic column 602. The pressure rod 606 transmits the power of the cylinder 607 to the telescopic column 602 and the spring 603 to adjust the pressure of the upper pressure roller 604.

[0050] Specifically, the sliding block 601 can slide within the fixed plate 5, thereby adjusting the position of the upper pressure roller 604 to adapt to films of different thicknesses. At the same time, the change in the compression degree of the spring 603 can adapt to films of different thicknesses.

[0051] A cylinder 607 is fixedly connected to the top of the pressure rod 606. The cylinder 607 serves as a power source, precisely controlling the lifting and lowering of the pressure rod 606 based on signals from the detection device, thereby adjusting the pressure of the upper pressure roller 604. A lower pressure roller 605 is rotatably connected to the outside of the fixed plate 5. The lower pressure roller 605 is positioned opposite to the upper pressure roller 604, working together to flatten the film. The pressure rod 606 is slidably connected to the inside of the fixed plate 5. This sliding connection ensures that the pressure rod 606 can smoothly lift and lower within the fixed plate 5, accurately transmitting the power of the cylinder 607. The bottom end of the cylinder 607 is fixedly connected to the top of the support plate 2, which serves as the cylinder 607. A stable installation base is provided to ensure that the cylinder 607 can work normally. The top end of the spring 603 is fixedly connected to the bottom end of the pressure rod 606, and the other end of the spring 603 is fixedly connected to the top end of the sliding block 601. This connection method allows the spring 603 to effectively transmit the pressure of the pressure rod 606 to the upper pressure roller 604. The guide roller 8 is rotatably connected inside the fixed plate 10. The guide roller 8 can guide the film from the feeding roller 7 to the flattening mechanism 6 and the cutting mechanism smoothly, ensuring the accurate conveying path of the film. The rear end of the housing 1 is fixedly connected to the unloading plate 9. The unloading plate 9 is used to guide the cut film to the next process, which is convenient for subsequent processing and collection.

[0052] Specifically, by sliding the pressure rod 606 inside the fixed plate 5, the spring 603 is squeezed, thereby changing the elasticity of the spring 603, which in turn adjusts the pressure of the upper pressure roller 604 and the lower pressure roller 605 on the film, making it suitable for cutting films of different thicknesses and materials.

[0053] Working principle: When the operator needs to cut the film using the device, the guide roller 8 pulls the feeding roller 7 to feed the film. Simultaneously, the operator can quickly adjust the position and angle of the sliding block 302 according to the required cutting position and number of strips. By rotating the threaded column 402, the threaded column 402 rotates outside the fixed column 401. The guide block 403 slides outside the rotating shaft 404, causing the rotating shaft 404 to rotate inside the sliding block 302. This causes the rotating rod 308 to drive the connecting rod 307 to rotate, resulting in the sliding plate 305 sliding inside the sliding block 302. This allows the limiting block 306 to slide into the sliding block 302, thus fixing the entire sliding block 302 in place. The internal sliding mechanism of the frame 301 allows for changing the position of the cutting blade 304. Simultaneously, the number of sliding blocks 302 can be freely increased or decreased within the frame 301 to add or remove cutting blades 304. After adjusting the position, the threaded column 402 is rotated in the opposite direction, causing the rotating shaft 404 to rotate within the sliding block 302. This ultimately causes the limiting block 306 to slide out of the sliding block 302 and into a slot within the frame 301, thus fixing the overall position of the sliding block 302. Through simple operation, the number and position of the cutting blades 304 can be quickly adjusted to meet different cutting needs, improving the overall practicality of the device and facilitating cleaning and maintenance of the blades.

[0054] When the film is being fed by the feeding roller 7, the outer part of the film passes between the upper pressure roller 604 and the lower pressure roller 605. The upper pressure roller 604 and the lower pressure roller 605 will squeeze the film. The detection device built into the housing 1 will automatically control the start of the cylinder 607 according to the pressure change, thereby causing the pressure rod 606 to rise and fall. By rising and falling the pressure rod 606, the compression degree of the spring 603 is changed. This allows the upper pressure roller 604 to quickly and flexibly adjust the pressure applied to the film according to the thickness and material characteristics of different films, ensuring the flattening effect.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film cutting device for a film blow molding machine, comprising a housing (1), characterized in that: The top of the housing (1) is fixedly connected to a second fixing plate (10), the top of the second fixing plate (10) is fixedly connected to a support plate (2), both ends of the support plate (2) are fixedly connected to a first fixing plate (5), the first fixing plate (5) is provided with a flattening mechanism (6), the bottom end of the support plate (2) is provided with an adjustment mechanism (3), and the adjustment mechanism (3) is provided with a fixing mechanism (4). The adjustment mechanism (3) includes a fixed frame (301), the top of which is fixedly connected to the bottom of the support plate (2). A sliding block (302) is slidably connected inside the fixed frame (301). A connecting block (303) is fixedly connected to the front end of the sliding block (302). A cutting blade (304) is fixedly connected to the outside of the connecting block (303). Two sliding plates (305) are slidably connected inside the sliding block (302). A limiting block (306) is fixedly connected to the far side of the two sliding plates (305). A connecting rod (307) is rotatably connected to the near side of the two sliding plates (305). A rotating rod (308) is rotatably connected to the near side of the two connecting rods (307).

2. The film cutting device for a film blow molding machine according to claim 1, characterized in that: The fixed frame (301) has a sliding groove on its outside, the connecting block (303) is slidably connected to the inside of the sliding groove, and the housing (1) is provided with a feeding roller (7) on its outside.

3. A film cutting device for a film blow molding machine according to claim 1, characterized in that: The external of the limiting block (306) is slidably connected to the inside of the sliding block (302), and the external of the limiting block (306) is slidably connected to the inside of the fixing frame (301).

4. A film cutting device for a film blow molding machine according to claim 1, characterized in that: The fixing mechanism (4) includes a fixing column (401), the outside of which is fixedly connected to the inside of the sliding block (302), the outside of which is threadedly connected to a threaded column (402), the inside of which is fixedly connected to a guide block (403), the inside of which is rotatably connected to a rotating shaft (404), and the outside of which is slidably connected to the inside of the rotating shaft (404).

5. A film cutting device for a film blow molding machine according to claim 1, characterized in that: The flattening mechanism (6) includes a second sliding block (601), which is slidably connected to the outside of the first fixed plate (5). An upper pressure roller (604) is rotatably connected to the outside of the second sliding block (601). A telescopic column (602) is fixedly connected to the top of the second sliding block (601). A spring (603) is sleeved on the outside of the telescopic column (602). A pressure rod (606) is fixedly connected to the top of the telescopic column (602). A cylinder (607) is fixedly connected to the top of the pressure rod (606). A lower pressure roller (605) is rotatably connected to the outside of the first fixed plate (5).

6. A film cutting device for a film blow molding machine according to claim 5, characterized in that: The external of the pressure rod (606) is slidably connected to the inside of the fixed plate (5), and the bottom end of the cylinder (607) is fixedly connected to the top of the support plate (2).

7. A film cutting device for a film blow molding machine according to claim 5, characterized in that: The top end of the spring (603) is fixedly connected to the bottom end of the pressure rod (606), and the other end of the spring (603) is fixedly connected to the top end of the sliding block (601).

8. A film cutting device for a film blow molding machine according to claim 1, characterized in that: The guide roller (8) is rotatably connected inside the fixed plate 2 (10), and the material feed plate (9) is fixedly connected to the rear end of the housing (1).

Images