Flattening device for plastic film coating
By designing a hydraulically driven triangular spreading plate that works in conjunction with a spreading roller assembly, the problem of uneven coating caused by uneven crystal stress during the plastic film coating process was solved, achieving stable spreading of films of different thicknesses and improving coating quality and production capacity.
Patent Information
- Application Number
- CN202422562788.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-23
AI Technical Summary
During the coating process, uneven crystal stress in plastic film leads to microbubble-like relaxation point structures, resulting in uneven coating and high scrap rate. This relaxation effect is particularly noticeable after wide-width coating and long-term storage, impacting coating capacity and yield.
A plastic film coating flattener is designed, which uses a hydraulic push rod to drive a triangular flattening plate to cooperate with a flattening roller assembly. The hydraulic push rod pushes the push seat to bring the triangular flattening plate and the flattening roller closer together, so as to flatten films of different thicknesses. Combined with the toothed belt driving the gear and roller shaft to rotate synchronously, stable flattening is achieved.
It effectively prevents voids in plastic films, improves coating quality, reduces defect rate, enhances the adaptability of the flattening device, and meets the coating needs of films of different thicknesses.
Smart Images
Figure CN223440294U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of auxiliary mechanism of plastic film coating, specifically relates to a kind of flattener of plastic film coating. BACKGROUND
[0002] When drawing, some micro bubble-like relaxation point structures are generated due to uneven internal crystal stress of plastic, sometimes the structures are in strip shape, and the relaxation structures can cause whole roll waste in the process of running on two feeding rollers for coating microparticle powder. The wider the base diaphragm width coated is, the more serious the relaxation structure is, which limits coating capacity and qualified rate. In addition, the base diaphragm will appear relaxation result after being placed for a period of time due to air exhaust and internal stress, causing coating strip-shaped coating leakage whole roll waste.
[0003] The flattening device is not provided in the plastic film coating mechanism, and the plastic film coating in the coating mechanism is in a relaxed and unflattened state. If the plastic film is not adjusted in time, gaps will appear in the plastic film coating roll after winding, which causes the problem that the whole roll of plastic film coating roll cannot be used. In addition, due to the requirement of flow processing, corresponding flattening operation needs to be performed on plastic films of different thicknesses. Therefore, the technical personnel in the art provide a flattener for plastic film coating to solve the problems raised in the above background. UTILITY MODEL CONTENT
[0004] To solve the above technical problems, the utility model provides a flattener for plastic film coating, which comprises a fixed seat plate, a front and rear through placement slot is formed in the upper part of the fixed seat plate, a plurality of hydraulic push rods are fixedly installed on the top of the placement slot, a sliding inner slot is formed in the lower part of the front end face of the fixed seat plate, a flattening device is arranged in the sliding inner slot, the lower part of the front end face of the fixed seat plate is fixed by the left and right side plates to fix the flattening roller frame, and the flattening roller group is fixed in the middle part of the flattening roller frame.
[0005] The flattening device comprises a push seat, a limiting sliding plate, a sinking groove, a fixed plate, a positioning column, a triangular flattening plate, a bracket plate, a shaft column and a connecting plate. The limiting sliding plates are symmetrically fixed and installed on the left and right sides of the push seat and arranged in the limiting inner slot. The push seat directionally slides in the limiting inner slot under the action of the limiting sliding plate, so that the push seat directionally slides in the sliding inner slot. The sinking groove is formed in the middle part of the front end of the push seat, and a plurality of fixed plates are equidistantly arranged and installed in the sinking groove. The positioning columns are symmetrically fixed and installed between the adjacent fixed plates. The triangular flattening plate is arranged on the front side of the push seat, and a plurality of bracket plates are equidistantly arranged and installed on the rear end face of the triangular flattening plate. The shaft columns are symmetrically fixed and installed between the adjacent bracket plates. The connecting plates are movably connected between the corresponding shaft columns and the positioning columns. The sliding slot is formed between the two bracket plates on the left and right sides and the outer side of the rear end face of the triangular flattening plate. The sliding slot is slidably arranged between the limiting folding plate.
[0006] Preferably, the symmetrical left and right side walls of the upper part of the sliding inner groove are provided with limiting inner grooves, and the front end surface of the fixed base plate is symmetrically fixed with limiting flaps.
[0007] Preferably, the flattened roller frame is arranged at an acute angle with the fixed base plate.
[0008] Preferably, a notch is formed between the upper end of the flattened roller frame and the fixed base plate, and a through hole is formed between the lower end of the flattened roller frame and the fixed base plate, and the plastic film enters the flattened device and the flattened roller group through the notch and then passes out of the through hole after being flattened.
[0009] Preferably, the flattened roller group comprises flattened rollers, roller shafts, gears and toothed belts, the inner side walls of the flattened roller frame are movably provided with the roller shafts, and the middle parts of the roller shafts are fixedly provided with the flattened rollers.
[0010] Preferably, the left and right ends of the roller shafts are fixedly provided with gears, and the gears are synchronously arranged to rotate by toothed belts.
[0011] The technical effects and advantages of the utility model are as follows:
[0012] 1. When the utility model is used, the hydraulic push rod is driven to push down the pusher, the pusher pushes down the triangular flattening plate to slide downward, the connecting plate rotates on the positioning column and the shaft column when the lower end surface of the triangular flattening plate contacts the bottom of the fixed base plate, so that the triangular flattening plate approaches the plastic film, the distance between the triangular flattening plate and the flattened roller is shortened, and the plastic film of different thicknesses can be flattened, the adaptability of the flattening device is improved, and the practicability is improved.
[0013] 2. When the utility model is used, the roller shafts on the gears are synchronously rotated by the toothed belt during the flattening process, so that the flattened roller can stably flatten the plastic film, adjust the plastic film, prevent the appearance of gaps in the plastic film, and prevent the appearance of defective products. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 is a structural schematic view provided by the application;
[0015] Fig. 2 is a structural schematic view of the limiting inner groove provided by the application;
[0016] Fig. 3 is a structural schematic view of the flattening device provided by the application;
[0017] Fig. 4 is a structural schematic view of the flattened roller group provided by the application;
[0018] In the figure: 1, fixed seat plate; 2, installation groove; 3, hydraulic push rod; 4, sliding inner groove; 5, limiting folding plate; 6, flattening device; 7, notch; 8, flattening roller frame; 9, flattening roller group; 10, limiting inner groove; 11, through hole;
[0019] 61, push seat; 62, limiting sliding plate; 63, sunken groove; 64, fixed plate; 65, positioning column; 66, triangular flattening plate; 67, frame plate; 68, shaft column; 69, connecting plate;
[0020] 91, flattening roller; 92, roller shaft; 93, gear; 94, toothed belt. DETAILED DESCRIPTION
[0021] The utility model will be explained in further detail below in combination with the drawings and specific embodiments. The embodiments of the utility model are given for the purpose of example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.
[0022] Please refer to Figs. 1-4 In the embodiment, a flattening device for plastic film coating is provided, which comprises a fixed seat plate 1, a front and rear through installation groove 2 is formed in the upper part of the fixed seat plate 1, a plurality of hydraulic push rods 3 are fixedly installed in the inner groove top of the installation groove 2, a sliding inner groove 4 is formed in the lower part of the front end face of the fixed seat plate 1, a limiting inner groove 10 is symmetrically formed in the upper and lower side walls of the sliding inner groove 4, a limiting folding plate 5 is symmetrically fixedly installed on the lower side of the front end face of the fixed seat plate 1, a flattening device 6 is arranged in the sliding inner groove 4, the concave notch formed by the flattening device 6, the limiting inner groove 10 and the limiting folding plate 5 is correspondingly arranged, the flattening roller frame 8 is fixed on the lower part of the front end face of the fixed seat plate 1 by the left and right side plates, the flattening roller frame 8 is arranged at an acute angle with the fixed seat plate 1, the flattening roller group 9 is fixed in the middle of the flattening roller frame 8, the notch 7 is formed between the upper end of the flattening roller frame 8 and the fixed seat plate 1, the through hole 11 is formed between the lower end of the flattening roller frame 8 and the fixed seat plate 1, and the plastic film enters between the flattening device 6 and the flattening roller group 9 through the notch 7, and then is flattened and then passes out from the through hole 11;
[0023] The flattening device 6 comprises a pushing seat 61, limiting sliding plates 62, sinking grooves 63, fixed plates 64, positioning columns 65, triangular flattening plates 66, shelf plates 67, shaft columns 68 and connecting plates 69, the limiting sliding plates 62 are symmetrically and fixedly installed on the left and right sides of the pushing seat 61 and arranged in the limiting inner grooves 10, the pushing seat 61 is limited to slide in the limiting inner grooves 10, so that the pushing seat 61 slides in the sliding inner grooves 4, the sinking grooves 63 are formed in the middle of the front end of the pushing seat 61, a plurality of fixed plates 64 are equidistantly arranged and installed in the sinking grooves 63, the positioning columns 65 are symmetrically and fixedly installed between the adjacent fixed plates 64, the triangular flattening plates 66 are arranged on the front side of the pushing seat 61, a plurality of shelf plates 67 are equidistantly arranged and installed on the rear end face of the triangular flattening plates 66, the shaft columns 68 are symmetrically and fixedly installed between the adjacent shelf plates 67, the connecting plates 69 are movably connected between the corresponding shaft columns 68 and the positioning columns 65, and the sliding grooves are formed between the two shelf plates 67 on the left and right sides and the outer side of the rear end face of the triangular flattening plates 66.
[0024] The flattening roller group 9 comprises flattening rollers 91, roller shafts 92, gear wheels 93 and toothed belts 94, the roller shafts 92 are movably installed on the inner side walls of the flattening roller frames 8, the flattening rollers 91 are fixedly installed in the middle of the roller shafts 92, the gear wheels 93 are fixedly installed on the left and right ends of the roller shafts 92, and the gear wheels 93 are synchronously arranged and rotated through the toothed belts 94.
[0025] The working principle of the utility model is as follows:
[0026] In use, the plastic film is put into the slot 7 and then passes through the gap between the triangular flattening plates 66 and the flattening rollers 91 and is discharged from the through hole 11, then the pushing seat 61 is pushed down by the driving hydraulic push rod 3, the pushing seat 61 is limited to slide downward in the limiting inner grooves 10, so that the pushing seat 61 slides downward in the sliding inner grooves 4, the sliding grooves formed by the triangular flattening plates 66 and the two shelf plates 67 on the left and right sides slide in the limiting folding plates 5, under the driving of the connecting plates 69, the triangular flattening plates 66 slide downward along with the pushing seat 61, when the lower end face of the triangular flattening plates 66 contacts the bottom of the fixed base plate 1, the connecting plates 69 rotate on the positioning columns 65 and the shaft columns 68, so that the triangular flattening plates 66 are close to the plastic film, the distance between the triangular flattening plates 66 and the flattening rollers 91 is shortened, and then the plastic film of different thicknesses can be flattened, the adaptability of the flattening device 6 is improved, the practicability is improved, the roller shafts 92 on the gear wheels 93 are synchronously rotated through the toothed belts 94 in the flattening process, so that the flattening rollers 91 stably flatten the plastic film, the plastic film is adjusted, the gap in the plastic film is eliminated, and the defective products are prevented.
[0027] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor shall belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.
Claims
1. A flattener for coating plastic film, comprising a fixed base plate (1), characterized in that: The upper portion of the fixed seat plate (1) is provided with a placement groove (2) extending through the front and rear, a plurality of hydraulic push rods (3) are fixedly installed on the top of the placement groove (2), a sliding inner groove (4) is provided at the lower portion of the front end surface of the fixed seat plate (1), a flattening device (6) is provided in the sliding inner groove (4), a flattening roller frame (8) is fixed to the front end surface of the lower portion of the fixed seat plate (1) by vertical plates on both sides, and a flattening roller group (9) is fixed in the middle of the flattening roller frame (8); The flattening device (6) includes a push seat (61), a limiting slide (62), a sinking groove (63), a fixing plate (64), a positioning column (65), a triangular flattening plate (66), a frame plate (67), a shaft column (68) and a connecting plate (69). The limiting slides (62) are symmetrically fixed on the left and right sides of the push seat (61). The limiting slides (62) are arranged in the limiting inner groove (10). The push seat (61) is subject to the limiting slide (62) to slide in a directional manner in the limiting inner groove (10), so that the push seat (61) slides in a directional manner in the sliding inner groove (4). A sinking groove (63) is provided in the middle of the front end of the push seat (61). The equidistant inner groove (63) is provided with a plurality of equidistant inner grooves. A plurality of fixed plates (64) are arranged and installed, and positioning columns (65) are fixedly installed symmetrically between adjacent fixed plates (64). A triangular expansion plate (66) is provided on the front side of the push seat (61), and a plurality of frame plates (67) are equidistantly arranged and installed on the rear end surface of the triangular expansion plate (66). Axle columns (68) are fixedly installed symmetrically between adjacent frame plates (67). The front and rear corresponding axle columns (68) and the positioning columns (65) are rotatably connected by a movable connecting plate (69). The two frame plates (67) on the left and right sides and the rear end surface of the triangular expansion plate (66) form a sliding notch on the outer side, and the sliding notch is slidably arranged between the sliding notch and the limit folding plate (5).
2. A plastic film coating flattener according to claim 1, characterized in that: The sliding inner groove (4) has symmetrically provided limiting inner grooves (10) on the left and right side walls of the upper part of the groove, and the fixing seat plate (1) has symmetrically fixed limiting folding plates (5) on the lower side of the front end surface, and the flattening device (6) and the concave notches formed by the limiting inner groove (10) and the limiting folding plates (5) are all slidably arranged in correspondence.
3. The plastic film coating flattener according to claim 1, characterized in that: The flattening roller frame (8) and the fixed seat plate (1) are arranged at an acute angle.
4. A plastic film coating flattener according to claim 3, characterized in that: A notch (7) is formed between the upper end of the flattening roller frame (8) and the fixed seat plate (1), and a through hole (11) is formed between the lower end of the flattening roller frame (8) and the fixed seat plate (1). The plastic film passes through the notch (7) and enters between the flattening device (6) and the flattening roller group (9), is flattened, and then passes out from the through hole (11).
5. A plastic film coating flattener according to claim 4, characterized in that: The flattening roller group (9) comprises a flattening roller (91), a roller shaft (92), a gear (93) and a toothed belt (94); the roller shaft (92) is movably mounted on the inner wall of the flattening roller frame (8); and the flattening roller (91) is fixedly mounted in the middle of the roller shaft (92).
6. A plastic film coating flattener according to claim 5, characterized in that: Gears (93) are fixedly mounted on the left and right ends of the roller shaft (92), and adjacent gears (93) are synchronously rotated by toothed belts (94).