Edge cutting equipment applied to down-blowing water-cooling film blowing
Through the design of the sliding cutter assembly, the problem of film edge warping is solved, and the film edge staggered arrangement is achieved, which improves production efficiency and reduces costs.
Patent Information
- Application Number
- CN202422115518.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing film cutter is fixed and unmovable, resulting in a single cutting position, which increases the thickness of the film edge after cutting, warping and deformation during winding, and cannot be used normally.
The sliding cutter assembly is adopted, including an upper fixed rod, a sliding rod and a cutting knife. The reciprocating movement of the cutting knife is realized through cam and spring drive, so that the cutting knife position changes, forming a wave edge, and avoiding the accumulation of edge thickness.
The film edge arrangement is realized to avoid warping, save offline slitting process, improve production efficiency and reduce costs.
Smart Images
Figure CN223044687U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thin films, and specifically relates to a down-blow water-cooled film blowing and edge trimming device. Background Art
[0002] A thin film is a thin and soft sheet made of plastic, adhesive, rubber or other materials. The scientific explanation of a thin film is: a two-dimensional material formed by depositing atoms, molecules or ions on the surface of a substrate. Examples: optical thin films, composite thin films, superconducting thin films, polyester thin films, nylon thin films, plastic thin films, etc. Thin films are widely used in industries such as electronics and electrical appliances, machinery, and printing. Thin films are usually made into a large sheet and then cut according to requirements.
[0003] The inventor found in the actual use process that these existing technologies have at least the following technical problems:
[0004] For the thin film produced by down-blow water cooling, when using the existing film cutting knife for cutting, the cutting knife is fixed and immovable, resulting in only one cutting position. After edge trimming, the edge thickness of the thin film increases, and during the winding process, the edge will warp, causing the thin film to deform and become unusable. Content of the Utility Model
[0005] To overcome the above deficiencies, through long-term exploration, attempts, multiple experiments and efforts, and continuous innovation, the inventor of the present utility model proposed a down-blow water-cooled film blowing and edge trimming device, which uses a floating cutting knife for cutting the thin film. The floating cutting knife can move left and right online for cutting, changing the position of the cutting knife. The original straight edge of the thin film becomes a wavy edge now, so that the edges of the thin film are staggered when winding, preventing the accumulation of edge thickness, avoiding edge warping during online edge trimming, saving the off-line slitting process, improving efficiency, and saving costs.
[0006] The technical solution adopted by the present utility model to achieve the above purpose is: providing a down-blow water-cooled film blowing and edge trimming device, which includes a film cutting device body, and a floating cutting knife assembly is arranged on the film cutting device body. The floating cutting knife assembly includes an upper fixing rod, a floating rod and a cutting knife. The upper end of the cutting knife is slidably installed on the upper fixing rod, and the lower end of the cutting knife is fixedly installed on the floating rod. Both ends of the floating rod are slidably installed. One end of the floating rod is connected to a floating top plate, and the floating top plate contacts a cam. The rotation of the cam drives the floating rod to reciprocate, and the other end of the floating rod abuts against a compressed spring.
[0007] According to the down-blow water-cooled film blowing and edge trimming device of the present utility model, a further preferred technical solution is: both ends of the floating rod are connected to linear oil-free bearings, the linear oil-free bearings are installed on a cutting knife fixing seat plate, and the cutting knife fixing seat plate is installed on the side plates on both sides of the film cutting device body.
[0008] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the cam is connected to a reduction motor, and the reduction motor is installed on the side plate through a bracket, and the center of the cam is adjustable so that the moving distance of the cutting knife is controlled between 1 mm and 10 mm.
[0009] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the spring is located inside the hollow of a linear oil-free bearing, and the spring is pressed between the side plate on the corresponding side and the end of the moving rod.
[0010] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the cutting knife is installed through a cutting knife seat, the upper end of the cutting knife seat is sleeved on the upper fixed rod, and the lower end is fixed on the moving rod.
[0011] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the cutting knife is detachably installed on the cutting knife seat.
[0012] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: limiting rings are arranged on the upper fixed rod on both sides of each cutting knife seat.
[0013] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the lower end of the cutting knife seat is sleeved on the moving rod and is fixed by being pressed on the moving rod through a fixing nut.
[0014] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: a traction device and a tensioning device for the film are arranged on the film cutting equipment, and the two guide rollers of the tensioning device tension the film at the cutting position of the moving cutting knife assembly.
[0015] For the down-blow water-cooled film edge-cutting equipment according to the present utility model, a further preferred technical solution is that: the upper fixed rod and the moving rod are arranged in parallel and have the same diameter.
[0016] Compared with the prior art, the technical solution of the present utility model has the following advantages / beneficial effects:
[0017] 1. The film is cut by using a moving cutting knife, which can move left and right online for cutting, so that the position of the cutting knife changes. The original straight edge of the film becomes a wavy edge now, so that the edges are staggered when the film is wound into a roll, and the situation of edge thickness accumulation will not occur, avoiding edge curling during online edge cutting. The off-line slitting process is saved, the efficiency is improved, and the cost is saved.
[0018] 2. The principle of this floating cutter is simple. It is driven by a cam and a baffle, and a spring is arranged at one end of the cross bar where the cutter is installed for reset, realizing a simple reciprocating motion. The floating cutter structure driven by a mechanical structure is not prone to failure, and the installation and maintenance are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0020] Figure 1 is a schematic structural diagram of the present invention applied to a down-blow water-cooled film blowing edge trimming device.
[0021] Figure 2 is a schematic structural diagram of the working principle of the present invention applied to a down-blow water-cooled film blowing edge trimming device.
[0022] Figure 3 is Figure 2 a cross-sectional schematic diagram of the film cutting device body at A-A in
[0023] Figure 4 is Figure 3 a partial enlarged view at B in
[0024] Figure 5 is Figure 3 a partial enlarged view at C in
[0025] The marks in the figure are respectively: 1. Film cutting device body; 2. Floating cutter assembly; 3. Upper fixed rod; 4. Floating rod; 5. Floating top plate; 6. Cam; 7. Spring; 8. Linear oil-free bearing; 9. Cutter fixing seat plate; 10. Cutter; 11. Side plate; 12. Cutter seat; 13. Limit ring; 14. Fixed nut; 15. Reduction motor; 16. Traction device; 17. Tensioning device. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention.
[0027] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.
[0028] Embodiment:
[0029] As Figures 1-5 shown, it is applied to a down-blow water-cooled film blowing edge cutting device. It includes a film cutting device body 1, and a floating cutter assembly 2 is arranged on the film cutting device body 1. The floating cutter assembly 2 includes an upper fixed rod 3, a floating rod 4, and a cutter 10. The upper end of the cutter 10 is slidably installed on the upper fixed rod 3, and the lower end of the cutter 10 is fixedly installed on the floating rod 4. Both ends of the floating rod 4 are slidably installed. One end of the floating rod 4 is connected to a floating top plate 5, and the floating top plate 5 contacts a cam 6. The rotation of the cam 6 drives the floating rod 4 to reciprocate. The other end of the floating rod 4 abuts against a compressed spring 7. The spring 7 mainly functions as a return spring to realize the return of the floating rod 4. Of course, the spring 7 can also make the reciprocating motion of the floating rod 4 more frequent and smooth.
[0030] Both ends of the floating rod 4 are connected to a linear oil-free bearing 8. The linear oil-free bearing 8 is installed on a cutter fixing seat plate 9. The cutter fixing seat plate 9 is installed on side plates 11 on both sides of the film cutting device body 1. The linear oil-free bearing 8 is used for lubrication to make the frictional force of the reciprocating motion smaller. Of course, other forms of lubrication can also be adopted.
[0031] The cam 6 is connected to a reduction motor 15. The reduction motor 15 is installed on the side plate 11 through a bracket. The cam 6 presses the floating top plate 5 and cooperates with the spring 7 to make the floating rod 4 move left and right. The torque of the reduction motor 15 is greater to achieve a greater rotational thrust. Other motors can be used in cooperation with a gear set to achieve the same function. The center of the cam is adjustable so that the floating distance of the cutter is controlled between 1 mm and 10 mm, that is, changing the center position of the cam installation makes the floating distance range of the floating cutter driven by the rotation of the cam change between 1 mm and 10 mm. It can be achieved by setting multiple mounting holes on one cam, or by setting multiple matching cams with different offset distances.
[0032] The spring 7 is located inside the hollow of a linear oil-free bearing 8, and the spring 7 is pressed between the side plate 11 on the corresponding side and the end of the floating rod 4. Installing the spring 7 inside the hollow of the linear oil-free bearing 8 can achieve a stable installation and ensure stable cooperation.
[0033] The cutting knife 10 is installed through the cutter holder 12. The upper end of the cutter holder 12 is sleeved on the upper fixed rod 3, and the lower end is fixed on the floating rod 4. The cutting knife 10 is detachably installed on the cutter holder 12. Limiting rings 13 are arranged on the upper fixed rod 3 on both sides of each cutter holder 12. The lower end of the cutter holder 12 is sleeved on the floating rod 4 and fixed by a fixing nut 14 pressed on the floating rod 4. In fact, the cutter holder 12 can adjust its position on the fixed floating rod 4, so that the spacing and quantity of the cutting knives can be adjusted. At the same time, the cutting knife 10 is also detachably installed on the cutter holder 12, and the cutting knife can be replaced conveniently.
[0034] A film traction device 16 and a tensioning device 17 are provided on the film cutting device. The two guide rollers of the tensioning device 17 tension the film at the cutting knife position of the floating cutter assembly 2. The traction device 16 refers to a structure that can actively guide the rotation of the film. Multiple traction devices can be arranged, mainly composed of rotating rollers. The tensioning device 17 uses rollers to tension the film to facilitate cutting by the cutting knife and then winding it up.
[0035] The upper fixed rod 3 and the floating rod 4 are arranged in parallel, and their diameters are equal. The parallel arrangement can make the cutting knife run smoothly, and the similar diameters make the installation more convenient.
[0036] Working principle: The cutting knife reciprocates under the drive of the floating rod. As the cutting knife moves, it can form wavy cutting marks on the film, making the edges of the film interlaced. This can prevent the edges from stacking when the cut film is wound again, avoiding the situation of curling edges. At the same time, it also prevents the cutting knife from always cutting the same position, which may cause film filaments at the cutting knife position of the cut film and entangle the cutting knife.
[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.
[0038] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0039] The above are only the preferred embodiments of the present utility model. It should be noted that the above preferred embodiments should not be construed as limiting the present utility model, and the protection scope of the present utility model should be subject to the scope defined by the claims. For those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as within the protection scope of the present utility model.
Claims
1. Applied to downward blowing water-cooled film blowing and trimming equipment, characterized in that: It includes a film cutting equipment body, on which a movable cutter assembly is arranged, the movable cutter assembly includes an upper fixed rod, a movable rod and a cutter, the upper end of the cutter is slidably mounted on the upper fixed rod, the lower end of the cutter is fixedly mounted on the movable rod, both ends of the movable rod are slidably mounted, a movable top plate is connected to one end of the movable rod, the movable top plate is in contact with a cam, the rotation of the cam drives the movable rod to reciprocate, and the other end of the movable rod resists the compressed spring.
2. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 1 is characterized in that: The two ends of the traveling rod are connected to the linear oil-free bearings, the linear oil-free bearings are mounted on the cutter fixed seat plate, and the cutter fixed seat plate is mounted on the side plates on both sides of the film cutting equipment body.
3. The edge trimming equipment for downward water-cooled blown film according to claim 2 is characterized in that: The cam is connected with a reduction motor, which is mounted on the side plate through a bracket. The center of the cam is adjustable so that the travel distance of the cutter is controlled between 1mm and 10mm.
4. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 2 is characterized in that: The spring is located in the hollow interior of a linear oil-free bearing, and the spring is compressed between the side plate on the side and the end of the traveling rod.
5. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 1 is characterized in that: The cutter is installed through a cutter seat, the upper end of the cutter seat is sleeved on the upper fixed rod, and the lower end is fixed on the floating rod.
6. The edge trimming equipment for downward water-cooled blown film according to claim 5 is characterized in that: The cutter is detachably mounted on the cutter seat.
7. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 5 or 6, characterized in that: Limiting rings are arranged on the upper fixing rods on both sides of each cutter seat.
8. The edge trimming equipment for downward water-cooled blown film according to claim 1 is characterized in that: The lower end of the cutter seat is sleeved on the movable rod and is fixed on the movable rod by pressing a fixing nut.
9. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 1 is characterized in that: The film cutting equipment is provided with a film traction device and a tensioning device, and two guide rollers of the tensioning device tension the film at the cutting knife position of the movable cutting knife assembly.
10. The edge trimming equipment for downward-blowing water-cooled blown film according to claim 1, characterized in that: The upper fixed rod and the movable rod are arranged in parallel, and the diameters of the two are equal.