Double-station active unreeling machine for PET (Polyethylene Terephthalate) release film

Abstract

The utility model discloses a PET release film double-station active unreeling machine. The PET release film double-station active unreeling machine comprises a mounting seat, a connecting plate, a first unreeling mechanism, a second unreeling mechanism, a tension balancing mechanism and a locking mechanism, the connecting plate is mounted on one side of the mounting seat; the first unwinding mechanism, the second unwinding mechanism and the tension balancing mechanism are installed on the surface of one side of the connecting plate, and the first unwinding mechanism and the second unwinding mechanism are arranged on one side of the tension balancing mechanism. One end of the locking mechanism is connected to the mounting base, and the other end of the locking mechanism is correspondingly arranged on the other side of the tension balancing mechanism. According to the PET release film double-station active unreeling machine, the utilization rate of the tension balance mechanism and the locking mechanism can be effectively increased while efficient unreeling of two PET release film coiled materials is guaranteed, so that the overall equipment size of the unreeling machine is reduced, and convenience and flexibility of installation and application of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pay-off equipment technical field especially relates to a PET release film double station initiative pay-off machine. BACKGROUND

[0002] Pay-off equipment is the core unit of PET release film production line, and is mainly used for stably unfolding and conveying raw material coils (base material or coated film) to subsequent process sections (such as coating, compounding, slitting, etc.). Its core function is to maintain constant pay-off tension and accurate transverse correction, to ensure that the film is wrinkle-free, stretch-free or offset-free during high-speed operation, directly affecting the uniformity, thickness accuracy and yield of the release film coating. The existing pay-off equipment is generally divided into mechanical pay-off, pneumatic pay-off, servo drive pay-off and intelligent pay-off. Among them, for low-speed and low-precision production lines, mechanical pay-off type equipment is generally used for pay-off work, which adjusts the pay-off tension through mechanical friction or magnetic powder resistance.

[0003] For production tasks with multiple pay-off stations, the existing pay-off equipment usually provides independent tension balancing mechanisms and emergency locking mechanisms for each pay-off station to independently transport and manage the PET release film payed off at different stations. However, for low-speed and low-precision production, the independent setting of the tension balancing mechanism and the emergency locking mechanism increases the equipment installation space occupation, and increases the equipment energy consumption and maintenance cost. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a PET release film double station initiative pay-off machine to solve the technical problems of large space occupation and high application cost of the existing pay-off equipment.

[0005] A PET release film double station initiative pay-off machine, which comprises a mounting seat, a connecting plate, a first pay-off mechanism, a second pay-off mechanism, a tension balancing mechanism and a locking mechanism. The connecting plate is installed on one side of the mounting seat. The first pay-off mechanism, the second pay-off mechanism and the tension balancing mechanism are installed on one side surface of the connecting plate, and the first pay-off mechanism and the second pay-off mechanism are arranged on one side of the tension balancing mechanism. One end of the locking mechanism is connected to the mounting seat, and the other end of the locking mechanism is correspondingly arranged on the other side of the tension balancing mechanism.

[0006] The first pay-off mechanism and the second pay-off mechanism are respectively arranged as pay-off stations of the PET release film, and are sequentially arranged with the tension balancing mechanism and the locking mechanism.

[0007] In one embodiment, the tension balancing mechanism comprises a lifting guide rail, a counterweight and a plurality of first roller bodies. The lifting guide rail is arranged on one side surface of the connecting plate in the direction of gravity. The counterweight is slidably connected to the lifting guide rail. The plurality of first roller bodies are installed on one side surface of the counterweight.

[0008] In one of the embodiments, the lifting rail is provided with a stopper, which is arranged at the bottom end of the lifting rail.

[0009] In one of the embodiments, the tension balancing mechanism is further provided with a plurality of second roller bodies, which are arranged at the top end of the lifting rail and are respectively installed on one side surface of the connecting plate.

[0010] In one of the embodiments, the tension balancing mechanism is further provided with a sensor rail and a plurality of sensors, the sensor rail is arranged on one side of the lifting rail and is installed on one side surface of the connecting plate, and the plurality of sensors are arranged on the sensor rail in parallel to the lifting rail.

[0011] In one of the embodiments, the counterweight is provided with a sensor sheet on the side facing the sensor rail, and the sensor sheet is capable of sequentially cooperating with the plurality of sensors.

[0012] In one of the embodiments, the locking mechanism comprises a bracket, a pressing strip, a driving unit and a third roller body, the bracket is correspondingly arranged on the adjacent side of the tension balancing mechanism, the pressing strip, the driving unit and the third roller body are all installed inside the bracket, the pressing strip is arranged in parallel to the third roller body, and the pressing strip is connected to the output end of the driving unit.

[0013] In one of the embodiments, the locking mechanism is further provided with a fourth roller body, which is arranged at the top side of the bracket and is installed on one side surface of the connecting plate.

[0014] In one of the embodiments, the locking mechanism is further provided with two fifth roller bodies, which are arranged at the bottom side of the bracket and are respectively installed on one side surface of the connecting plate, and the two fifth roller bodies are arranged in a staggered manner.

[0015] In one of the embodiments, the first unwinding mechanism and the second unwinding mechanism are both provided as air expansion shafts, and the two air expansion shafts are respectively driven to rotate by corresponding motors.

[0016] The PET release film double-station active unwinding machine realizes double-station unwinding of the PET release film through the cooperation of the first unwinding mechanism and the second unwinding mechanism. The two PET release film coiled materials can be arranged in the first unwinding mechanism and the second unwinding mechanism respectively and sequentially output to external equipment through the tension balancing mechanism and the locking mechanism respectively, so as to complete double-station active unwinding of the PET release film. In the unwinding process, the PET release films output by the first unwinding mechanism and the second unwinding mechanism can simultaneously be subjected to conveying tension control through the tension balancing mechanism and simultaneously be subjected to start-stop of the conveying process through the locking mechanism, so as to realize double-station synchronous unwinding of the PET release film. Based on this, the PET release film double-station active unwinding machine can effectively improve the utilization rate of the tension balancing mechanism and the locking mechanism while ensuring efficient unwinding of the two PET release film coiled materials, so as to reduce the overall equipment volume of the unwinding machine and improve the convenience and flexibility of installation and application of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the PET release film double-station active unwinding machine in an embodiment. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0020] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply a relative importance or an ordering between or among the indicated features. Thus, a feature defined with "first", "second", etc. can explicitly or implicitly include at least one of the feature. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0023] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0024] Please refer to Figure 1The utility model discloses a kind of PET release film double-station active unwinding machine, the PET release film double-station active unwinding machine includes mounting seat 100, connecting plate 200, first unwinding mechanism 300, second unwinding mechanism 400, tension balance mechanism 500 and locking mechanism 600;Connecting plate 200 is installed in one side of mounting seat 100;First unwinding mechanism 300, second unwinding mechanism 400 and tension balance mechanism 500 are installed in the one side surface of connecting plate 200, and first unwinding mechanism 300 and second unwinding mechanism 400 are set in one side of tension balance mechanism 500;Locking mechanism 600 one end is connected to mounting seat 100, and the other end of locking mechanism 600 is correspondingly set in the other side of tension balance mechanism 500.Specifically, first unwinding mechanism 300 and second unwinding mechanism 400 are respectively arranged as the unwinding station of PET release film and tension balance mechanism 500 and locking mechanism 600 are sequentially arranged, that is, in actual application, two PET release film coiled material can be respectively set in first unwinding mechanism 300 and second unwinding mechanism 400, and sequentially output to external equipment through tension balance mechanism 500 and locking mechanism 600 respectively, to complete the double-station active unwinding of PET release film;In the unwinding process, the PET release film output by first unwinding mechanism 300 and second unwinding mechanism 400 can be simultaneously transported tension control through tension balance mechanism 500, can be simultaneously started and stopped in the conveying process through locking mechanism 600, to realize the double-station synchronous unwinding work of PET release film.Based on this, the PET release film double-station active unwinding machine of the utility model can effectively improve the utilization of tension balance mechanism 500 and locking mechanism 600 while ensuring the efficient unwinding of two PET release film coiled materials, to reduce the overall equipment volume of unwinding machine, improve the convenience and flexibility of equipment installation application.

[0025] Further, the tension balancing mechanism 500 comprises a lifting rail 510, a counterweight 520 and a plurality of first roller bodies 530. The lifting rail 510 is arranged on one side surface of the connecting plate 200 along the direction of gravity. The counterweight 520 is slidingly connected to the lifting rail 510, so that the counterweight 520 can move up and down along the connecting plate 200. The plurality of first roller bodies 530 are installed on one side surface of the counterweight 520. The PET release films output by the first unwinding mechanism 300 and the second unwinding mechanism 400 can be conveyed to the locking mechanism 600 through the plurality of first roller bodies 530. By adjusting the weight of the counterweight 520 and the unwinding speed of the PET release film, the PET release film can lift the plurality of first roller bodies 530 and the counterweight 520 and move up and down along the lifting rail 510. During the conveying process, the counterweight 520 presses the PET release film with its own weight, so as to maintain the tension state of the PET release film within a certain range, thereby realizing tension balancing. In an embodiment, the lifting rail 510 is provided with a stop block 511 arranged at the bottom end of the lifting rail 510, so as to limit the descending range of the counterweight 520 and the plurality of first roller bodies 530.

[0026] Further, the tension balancing mechanism 500 further comprises a plurality of second roller bodies 540 arranged at the top end of the lifting rail 510 and installed on one side surface of the connecting plate 200. During the tension balancing process of the two PET release films output by the two stations, the two PET release films pass through the plurality of second roller bodies 540 and the plurality of first roller bodies 530 synchronously and alternately. The plurality of second roller bodies 540 can control and guide the conveying direction of the PET release film to the plurality of first roller bodies 530, so as to more facilitate the maintenance of the unfolded state of the PET release film during the conveying process and avoid the generation of wrinkles.

[0027] Further, the tension balancing mechanism 500 further comprises a sensor rail 550 and a plurality of sensors 560. The sensor rail 550 is arranged on one side of the lifting rail 510 and installed on one side surface of the connecting plate 200. The plurality of sensors 560 are arranged on the sensor rail 550 in a direction parallel to the lifting rail 510, so as to monitor the up-and-down movement state of the counterweight 520 in real time. In an embodiment, the counterweight 520 is provided with a sensor sheet 521 on one side facing the sensor rail 550. The sensor sheet 521 can sequentially cooperate with the plurality of sensors 560, so as to realize the displacement monitoring of the counterweight 520 by the plurality of sensors 560.

[0028] Further, the locking mechanism 600 comprises a bracket 610, a pressing strip 620, a driving unit 630 and a third roller body 640, the bracket 610 is correspondingly arranged at the adjacent side of the tension balance mechanism 500; the pressing strip 620, the driving unit 630 and the third roller body 640 are all mounted in the interior of the bracket 610, wherein the pressing strip 620 is arranged in parallel with the third roller body 640, and the pressing strip 620 is connected to the output end of the driving unit 630, so that the driving unit 630 can drive the pressing strip 620 to abut against the side surface of the third roller body 640. The two PET release films output by the tension balance mechanism 500 can pass between the third roller body 640 and the pressing strip 620 at the same time, and the driving unit 630 can drive the pressing strip 620 to cooperate with the third roller body 640 to simultaneously lock the PET release films in the two stations according to the actual production situation.

[0029] Further, the locking mechanism 600 further comprises a fourth roller body 650, the fourth roller body 650 is arranged at the top side of the bracket 610 and is mounted on one side surface of the connecting plate 200, and the two PET release films output by the tension balance mechanism 500 are first guided by the fourth roller body 650 in a synchronous manner, and then are extended and subsequently conveyed by the third roller body 640.

[0030] Further, the locking mechanism 600 further comprises two fifth roller bodies 660, the two fifth roller bodies 660 are arranged at the bottom side of the bracket 610 and are respectively mounted on one side surface of the connecting plate 200; the two fifth roller bodies 660 are arranged in a staggered manner, and the PET release films output by the two stations can be respectively guided and separated by the two fifth roller bodies 660.

[0031] Further, the first unwinding mechanism 300 and the second unwinding mechanism 400 are both arranged as air expansion shafts, and the two air expansion shafts are respectively driven to rotate by corresponding motors, so as to realize the unwinding function of the first unwinding mechanism 300 and the second unwinding mechanism 400.

[0032] In summary, the PET release film double-station active unwinding machine disclosed by the utility model realizes double-station unwinding of the PET release film through the cooperative work of the first unwinding mechanism and the second unwinding mechanism. The two PET release film coiled materials can be respectively arranged in the first unwinding mechanism and the second unwinding mechanism and are respectively sequentially output to external equipment through the tension balancing mechanism and the locking mechanism, so as to complete double-station active unwinding of the PET release film. In the unwinding process, the PET release films output by the first unwinding mechanism and the second unwinding mechanism can be simultaneously subjected to conveying tension control through the tension balancing mechanism and can be simultaneously subjected to start-stop of the conveying process through the locking mechanism, thereby realizing double-station synchronous unwinding work of the PET release film. Based on this, the PET release film double-station active unwinding machine of the utility model can effectively improve the utilization rate of the tension balancing mechanism and the locking mechanism while ensuring efficient unwinding of the two PET release film coiled materials, so as to reduce the overall equipment volume of the unwinding machine and improve the convenience and flexibility of installation and application of the equipment.

[0033] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0034] The above-described embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the utility model, and these belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A dual-station active unwinding machine for PET release film, characterized in that, include: Mounting base, connecting plate, first unwinding mechanism, second unwinding mechanism, tension balancing mechanism, and locking mechanism; The connecting plate is installed on one side of the mounting base; the first unwinding mechanism, the second unwinding mechanism, and the tension balancing mechanism are installed on one side surface of the connecting plate, and the first unwinding mechanism and the second unwinding mechanism are located on one side of the tension balancing mechanism; one end of the locking mechanism is connected to the mounting base, and the other end of the locking mechanism is located on the other side of the tension balancing mechanism. The first unwinding mechanism and the second unwinding mechanism serve as unwinding stations for PET release film, and are arranged sequentially with the tension balancing mechanism and the locking mechanism.

2. The PET release film dual-station active unwinding machine according to claim 1, characterized in that, The tension balancing mechanism includes a lifting guide rail, a counterweight, and several first rollers. The lifting guide rail extends along the direction of gravity and is disposed on one side surface of the connecting plate. The counterweight is slidably connected to the lifting guide rail. Several first rollers are installed on one side surface of the counterweight.

3. The PET release film dual-station active unwinding machine according to claim 2, characterized in that, The lifting guide rail is equipped with a stop block, which is located at the bottom end of the lifting guide rail.

4. The PET release film dual-station active unwinding machine according to claim 2, characterized in that, The tension balancing mechanism also includes several second rollers, which are located at the top of the lifting guide rail and are respectively installed on one side surface of the connecting plate.

5. The PET release film dual-station active unwinding machine according to claim 4, characterized in that, The tension balancing mechanism also includes a sensor guide rail and several sensors. The sensor guide rail is located on one side of the lifting guide rail and is mounted on one side surface of the connecting plate. Several sensors are arranged on the sensor guide rail in a direction parallel to the lifting guide rail.

6. The PET release film dual-station active unwinding machine according to claim 5, characterized in that, A sensor plate is installed on the side of the counterweight facing the sensor guide rail, and the sensor plate can be used in sequence with several sensors.

7. The PET release film dual-station active unwinding machine according to claim 1, characterized in that, The locking mechanism includes a bracket, a pressure bar, a drive unit, and a third roller. The bracket is positioned adjacent to the tension balancing mechanism. The pressure bar, drive unit, and third roller are all installed inside the bracket. The pressure bar is parallel to the third roller and is connected to the output end of the drive unit.

8. The PET release film dual-station active unwinding machine according to claim 7, characterized in that, The locking mechanism also includes a fourth roller, which is located on the top side of the bracket and mounted on one side surface of the connecting plate.

9. The PET release film dual-station active unwinding machine according to claim 8, characterized in that, The locking mechanism also includes two fifth rollers, which are located on the bottom side of the bracket and respectively installed on one side surface of the connecting plate; the two fifth rollers are staggered.

10. The PET release film dual-station active unwinding machine according to claim 1, characterized in that, Both the first and second unwinding mechanisms are equipped with air shafts, and the two air shafts are driven to rotate by corresponding advance motors.

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