A cross-cut machine for cast film with adjustable carriage sliding device
Through the design of the lifting and adjusting mechanisms, the synchronous adjustment of the five sets of cutting blades in the cast film cross-cutting machine is realized, which solves the problem of low adjustment efficiency of traditional blade holders and improves production efficiency.
Patent Information
- Application Number
- CN202522445415.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-18
AI Technical Summary
Traditional cast film cross-cutting machines require manual adjustment of the blade holder, resulting in long downtime for each blade holder and impacting production efficiency.
An adjustable blade holder sliding device was designed, which includes a lifting mechanism, an adjustment mechanism, and a cutting mechanism. Through the cooperation of a limit plate and a cylinder, the synchronous adjustment of five sets of cutting blades can be achieved, shortening the adjustment time.
It enables the synchronous adjustment of five sets of cutting blades, reducing adjustment time and improving production efficiency.
Smart Images

Figure CN224928044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cast film cutting equipment, specifically an adjustable blade holder sliding device for a cast film cross-cutting machine. Background Technology
[0002] Cast film is a type of non-stretched, non-oriented flat extrusion film produced by rapidly cooling melt casting. There are two methods: single-layer casting and multi-layer co-extrusion. Compared to blown film, it features faster production speed, higher output, and significantly better transparency, gloss, and thickness uniformity. The cast film slitting machine is a key piece of equipment in cast film production. It uses a cutter holder to adjust and fix the cutter along the width of the film, cutting the continuously fed cast film into sheets of a set width. The adjustment accuracy and stability of the cutter holder sliding device directly determine the cutting quality.
[0003] However, traditional cast film cross-cutting machines have independent blade holders, and adjusting the position of each blade holder requires manual adjustment of each set of blade holders, resulting in long downtime for adjustment and affecting production efficiency. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable blade holder sliding device for a cast film cross-cutting machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable blade holder sliding device for a cast film cross-cutting machine, comprising: a base plate, two sets of upright plates fixedly connected to the upper end of the base plate, a lifting mechanism disposed between the two sets of upright plates, an adjustment mechanism disposed on the front of the lifting mechanism, and a cutting mechanism disposed between the lifting mechanism and the adjustment mechanism; the lifting mechanism includes a fixed plate, a telescopic cylinder one, and a mounting plate; the fixed plate is fixedly connected between the two sets of upright plates; the telescopic cylinder one is fixedly installed at the bottom of the fixed plate; the mounting plate is fixedly connected to the output end of the telescopic cylinder one; the adjustment mechanism includes a horizontal plate, a telescopic cylinder two, and a limiting plate; the horizontal plate is fixedly connected to the front of the fixed plate; the telescopic cylinder two is fixedly installed on the top surface of the horizontal plate; and the limiting plate is fixedly connected to the output end of the telescopic cylinder two.
[0006] Furthermore, the lifting mechanism also includes a limiting rod, which is fixedly connected to the top surface of the mounting plate, and two sets of limiting rods are provided, both sets of which are slidably connected to the fixed plate.
[0007] Furthermore, the front of the limiting plate is provided with five sets of limiting grooves.
[0008] Furthermore, the adjustment mechanism also includes a connecting plate, a slide plate 1, and a track 1. The connecting plate is fixedly connected to the back of the limiting plate, and two sets of connecting plates are provided. The slide plate 1 is fixedly connected to the back of the connecting plate. The track 1 is fixedly connected to the front of the mounting plate, and two sets of track 1 are provided. The slide plate 1 is slidably connected to the adjacent track 1.
[0009] Furthermore, the cutting mechanism includes a moving block, a second sliding bed plate, and a second track. The moving block is provided in five sets. The second sliding bed plate is fixedly connected to the back of the moving block and is provided in two sets. The second track is fixedly connected to the front of the mounting plate and is provided in two sets. The second sliding bed plate is slidably connected to the adjacent second track.
[0010] Furthermore, the cutting mechanism also includes a mounting base, a cutting blade, and bolts. The mounting base is fixedly connected to the bottom of the movable block, and the cutting blade is fixedly mounted on the bottom of the mounting base by bolts.
[0011] Furthermore, the cutting mechanism also includes a positioning rod and a rotating cylinder. The positioning rod is fixedly connected to the front of the moving block, the rotating cylinder is rotatably connected to the periphery of the positioning rod, and the rotating cylinder is slidably connected inside an adjacent limiting groove.
[0012] Furthermore, four sets of limiting rollers are provided between the two sets of vertical plates.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model can drive the rotating drum and positioning rod to move left and right by moving the limiting plate up and down. At this time, the distance between the five sets of moving blocks can be expanded or reduced simultaneously. By adjusting the distance between the five sets of moving blocks, the distance between the five sets of cutting blades can be adjusted. This structure can adjust the position of the five sets of cutting blades at the same time, and the adjustment time is short. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;
[0016] Figure 2 for Figure 1 Schematic diagram of the lifting mechanism and adjusting mechanism;
[0017] Figure 3 for Figure 2 Schematic diagram of the cutting mechanism;
[0018] Figure 4 for Figure 3 A magnified view of a portion of position A in the middle.
[0019] Reference numerals in the attached drawings: 1. Base plate; 2. Vertical plate; 3. Lifting mechanism; 31. Fixed plate; 32. Telescopic cylinder one; 33. Mounting plate; 34. Limiting rod; 4. Adjusting mechanism; 41. Horizontal plate; 42. Telescopic cylinder two; 43. Limiting plate; 431. Limiting groove; 44. Connecting plate; 45. Slide plate one; 46. Track one; 5. Cutting mechanism; 51. Moving block; 52. Slide plate two; 53. Track two; 54. Mounting seat; 55. Cutting blade; 56. Bolt; 57. Positioning rod; 58. Rotary drum; 6. Limiting roller. Detailed Implementation
[0020] 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.
[0021] Please refer to the following: Figures 1-4 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the lifting mechanism and adjusting mechanism; Figure 3 for Figure 2 Schematic diagram of the cutting mechanism; Figure 4 for Figure 3 A partial enlarged view at position A shows an adjustable blade holder sliding device for a cast film cross-cutting machine, comprising: a base plate 1, two sets of upright plates 2 fixedly connected to the upper end of the base plate 1, a lifting mechanism 3 disposed between the two sets of upright plates 2, an adjustment mechanism 4 disposed on the front of the lifting mechanism 3, and a cutting mechanism 5 disposed between the lifting mechanism 3 and the adjustment mechanism 4. The lifting mechanism 3 includes a fixed plate 31, a telescopic cylinder 32, and a mounting plate 33. The fixed plate 31 is fixedly connected between the two sets of upright plates 2, the telescopic cylinder 32 is fixedly installed at the bottom of the fixed plate 31, and the mounting plate 33 is fixedly connected to the output end of the telescopic cylinder 32. The adjustment mechanism 4 includes a horizontal plate 41, a telescopic cylinder 42, and a limiting plate 43. The horizontal plate 41 is fixedly connected to the front of the fixed plate 31, the telescopic cylinder 42 is fixedly installed on the top surface of the horizontal plate 41, and the limiting plate 43 is fixedly connected to the output end of the telescopic cylinder 42.
[0022] The lifting mechanism 3 also includes a limiting rod 34, which is fixedly connected to the top surface of the mounting plate 33. Two sets of limiting rods 34 are provided, and both sets of limiting rods 34 are slidably connected to the fixed plate 31.
[0023] The front of the limiting plate 43 has five sets of limiting grooves 431. The middle set of limiting grooves 431 is vertically opened, the two sets of limiting grooves 431 on the left are tilted to the left, and the two sets of limiting grooves 431 on the right are offset to the right. The two sets of limiting grooves 431 on the left and the two sets of limiting grooves 431 on the right are symmetrically opened along the middle set of limiting grooves 431.
[0024] The adjustment mechanism 4 also includes a connecting plate 44, a slide plate 45, and a track 46. The connecting plate 44 is fixedly connected to the back of the limiting plate 43, and two sets of the connecting plate 44 are provided. The slide plate 45 is fixedly connected to the back of the connecting plate 44. The track 46 is fixedly connected to the front of the mounting plate 33, and two sets of the track 46 are provided. The slide plate 45 is slidably connected to the adjacent track 46.
[0025] The cutting mechanism 5 includes a moving block 51, a second sliding bed plate 52, and a second track 53. The moving block 51 is provided in five sets. The second sliding bed plate 52 is fixedly connected to the back of the moving block 51 and is provided in two sets. The second track 53 is fixedly connected to the front of the mounting plate 33 and is provided in two sets. The second sliding bed plate 52 is slidably connected to the adjacent second track 53.
[0026] The cutting mechanism 5 also includes a mounting base 54, a cutting blade 55, and bolts 56. The mounting base 54 is fixedly connected to the bottom of the movable block 51, and the cutting blade 55 is fixedly mounted on the bottom of the mounting base 54 by bolts 56.
[0027] The cutting mechanism 5 also includes a positioning rod 57 and a rotating drum 58. The positioning rod 57 is fixedly connected to the front of the moving block 51, and the rotating drum 58 is rotatably connected to the side of the positioning rod 57. The rotating drum 58 is slidably connected inside the adjacent limiting groove 431.
[0028] Four sets of limiting rollers 6 are provided between the two sets of upright plates 2, which can limit the casting film.
[0029] In summary, the adjustable blade holder sliding device for a cast film cross-cutting machine provided by this utility model allows for the limiting of the positioning rod 57 and the rotating drum 58 via the limiting groove 431 during operation. The positions of the positioning rod 57 and the rotating drum 58 can be adjusted by moving the limiting plate 43 up and down via the telescopic cylinder 42. At this time, the first slide plate 45 slides along the first track 46, and the second slide plate 52 slides along the second track 53, thereby synchronously adjusting the distance between the five sets of moving blocks 51. By adjusting the distance between the five sets of moving blocks 51, the position of the positioning rod 57 and the rotating drum 58 can be adjusted. The distance between the five sets of cutting blades 55 can be adjusted. At this time, the distance between the five sets of cutting blades 55 can be expanded or reduced simultaneously. After the position of the cutting blades 55 is adjusted, the cast film passes from the bottom of the first set of limiting rollers 6 from front to back, then from the top of the two sets of limiting rollers 6 above, and finally from the bottom of the last set of limiting rollers 6. The installation plate 33 is moved downward by the telescopic cylinder 32, which can make the cutting mechanism 5 move downward synchronously. When the cutting blades 55 come into contact with the cast film downward, the cast film can be cut.
Claims
1. An adjustable blade holder sliding device for a cast film cross-cutting machine, characterized in that, include: A base plate (1) has two sets of upright plates (2) fixedly connected to its upper end. A lifting mechanism (3) is provided between the two sets of upright plates (2). An adjustment mechanism (4) is provided on the front of the lifting mechanism (3). A cutting mechanism (5) is provided between the lifting mechanism (3) and the adjustment mechanism (4). The lifting mechanism (3) includes a fixed plate (31), a telescopic cylinder (32), and a mounting plate (33). The fixed plate (31) is fixedly connected between the two sets of upright plates (2). The telescopic cylinder one (32) is fixedly installed at the bottom of the fixed plate (31), and the mounting plate (33) is fixedly connected to the output end of the telescopic cylinder one (32). The adjustment mechanism (4) includes a horizontal plate (41), a telescopic cylinder two (42) and a limiting plate (43). The horizontal plate (41) is fixedly connected to the front of the fixed plate (31), the telescopic cylinder two (42) is fixedly installed on the top surface of the horizontal plate (41), and the limiting plate (43) is fixedly connected to the output end of the telescopic cylinder two (42).
2. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 1, characterized in that, The lifting mechanism (3) also includes a limiting rod (34), which is fixedly connected to the top surface of the mounting plate (33). There are two sets of limiting rods (34), and both sets of limiting rods (34) are slidably connected to the fixed plate (31).
3. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 2, characterized in that, The limiting plate (43) has five sets of limiting grooves (431) through the front.
4. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 3, characterized in that, The adjustment mechanism (4) further includes a connecting plate (44), a slide plate (45), and a track (46). The connecting plate (44) is fixedly connected to the back of the limiting plate (43), and there are two sets of the connecting plate (44). The slide plate (45) is fixedly connected to the back of the connecting plate (44). The track (46) is fixedly connected to the front of the mounting plate (33), and there are two sets of the track (46). The slide plate (45) is slidably connected to the adjacent track (46).
5. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 4, characterized in that, The cutting mechanism (5) includes a moving block (51), a second sliding bed plate (52), and a second track (53). The moving block (51) is provided in five sets. The second sliding bed plate (52) is fixedly connected to the back of the moving block (51) and is provided in two sets. The second track (53) is fixedly connected to the front of the mounting plate (33) and is provided in two sets. The second sliding bed plate (52) is slidably connected to the adjacent second track (53).
6. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 5, characterized in that, The cutting mechanism (5) also includes a mounting base (54), a cutting blade (55) and bolts (56). The mounting base (54) is fixedly connected to the bottom of the moving block (51), and the cutting blade (55) is fixedly installed on the bottom of the mounting base (54) by bolts (56).
7. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 6, characterized in that, The cutting mechanism (5) also includes a positioning rod (57) and a rotating cylinder (58). The positioning rod (57) is fixedly connected to the front of the moving block (51), and the rotating cylinder (58) is rotatably connected to the side of the positioning rod (57). The rotating cylinder (58) is slidably connected inside the adjacent limiting groove (431).
8. The adjustable blade holder sliding device for a cast film cross-cutting machine according to claim 7, characterized in that, Four sets of limiting rollers (6) are provided between the two sets of vertical plates (2).
