Packaging film winding device

Abstract

The utility model discloses a packaging film winding device which comprises a controller, a base, a servo motor arranged on the base, a support and two oppositely-arranged installation frames, rotating shafts are rotationally installed in the two installation frames, clamping sleeves are further arranged at the opposite ends of the two rotating shafts, and one rotating shaft is connected with the servo motor in a driving mode. The support is further provided with a first installation plate, the first installation plate is further provided with a damping sliding sleeve and a linear displacement sensor, a measuring rod of the linear displacement sensor is arranged in the damping sliding sleeve in a sliding and penetrating mode, and the damping sliding sleeve is further provided with a damping adjusting mechanism used for adjusting the sliding resistance of the measuring rod in the damping sliding sleeve. The other end of the measuring rod is further connected with a second mounting plate, the other end face of the second mounting plate is further rotationally provided with a roller, and the linear displacement sensor and the servo motor are electrically connected with the controller. According to the device, the large winding drum can be conveniently disassembled and assembled, the increased thickness of the packaging film can be measured in real time and converted into the angular speed control quantity, and therefore the rotating speed of the winding drum is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging film processing, in particular to a packaging film winding device. Background Art

[0002] After printing and cutting, the packaging film is made into the desired finished product. In order to improve efficiency, the packaging film will be directly rolled up by related devices after printing and drying. Therefore, it is a problem that needs to be solved to ensure that the packaging film passes through the printing equipment and drying equipment at a uniform speed. When making larger rolls, there are some problems that need to be solved in the existing winding device. First, as the winding continues, the thickness of the packaging film continues to accumulate, causing the outer diameter of the roll to increase continuously. When the angular velocity of the roll rotation remains unchanged, the linear velocity of the outer wall of the roll increases accordingly. Therefore, the speed of the roll needs to be adjusted. Second, the installation and disassembly of larger rolls is not very convenient. Utility Model Content

[0003] The utility model aims to provide a packaging film winding device to solve the problems described in the background technology.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A packaging film winding device comprises a controller, a base and a servo motor arranged on the base, a bracket and two mounting brackets arranged opposite to each other, wherein a rotating shaft is rotatably installed in each of the two mounting brackets, the central axes of the two rotating shafts are on the same straight line, and an openable and closable clamping sleeve is provided at opposite ends of the two rotating shafts, one of the rotating shafts is connected to the servo motor, a first mounting plate is provided on the bracket, a damping sleeve and a linear displacement sensor are provided on the first mounting plate, a measuring rod of the linear displacement sensor is slidably inserted into the damping sleeve, the telescopic direction of the measuring rod is parallel to the radial direction of the rotating shaft and vertically points to the central axis of the rotating shaft, a damping adjustment mechanism for adjusting the sliding resistance of the measuring rod in the damping sleeve is provided on the damping sleeve, the other end of the measuring rod is also connected to a second mounting plate, a roller is rotatably installed on the other end surface of the second mounting plate, the central axis of the roller is parallel to the central axis of the rotating shaft, and the linear displacement sensor, the servo motor and the controller are electrically connected.

[0006] When using the above scheme, open the jacket at the end of the rotating shaft, place the roll in the jacket, and then lock the jacket to clamp the roll. After rolling up part of the packaging film, extend the measuring rod so that the roller is against the packaging film on the roll, and measure the real-time displacement of the packaging film layer. Knowing the outer diameter of the roll, set the outer diameter distance of the roll as the initial distance. The initial distance plus the displacement is the radius of the outermost layer of the packaging film. When you want to control the real-time linear velocity of the outermost layer of the packaging film, control the angular velocity of the servo motor according to the radius of the outermost layer of the packaging film, and you can control the linear velocity of the outermost layer of the packaging film. The linear displacement sensor transmits the displacement to the controller, and the controller controls the rotational angular velocity of the servo motor by presetting the linear velocity value and the linear velocity calculation formula.

[0007] By setting up a damping sleeve and a damping adjustment mechanism, the measuring rod can have a certain sliding damping, which prevents the measuring rod from moving around in the damping sleeve at will. The measuring rod can only move when the packaging film layer is against the roller, and is not moved by gravity or inertia, thereby improving real-time measurement accuracy.

[0008] By arranging the roller, the measuring rod can be pushed and moved by the increasing outer layer of the packaging film without scratching the packaging film.

[0009] A further technical solution is that the number of rollers rotatably mounted on the other side of the second mounting plate is at least three, the plurality of rollers are arranged at equal intervals, the second mounting plate is also provided with at least two first sliding bars on the side facing the linear displacement sensor, the plurality of first sliding bars and measuring bars are parallel to each other and are arranged at equal intervals, the first mounting plate is also provided with damping sleeves equal in number to the first sliding bars, the first sliding bars are slidably inserted in the corresponding damping sleeves, and the sliding direction of the first sliding bars points perpendicularly to the central axis of the rotating shaft.

[0010] By providing a plurality of rollers and a first slide bar, the stress points of the second mounting plate and the packaging film layer can be evenly shared, preventing the packaging film from being excessively squeezed by the rollers, making the second mounting plate slide more smoothly, thereby measuring a more accurate displacement of the packaging film.

[0011] A further technical solution is that the jacket includes a connecting plate arranged on the rotating shaft, a first semi-circular cylindrical jacket is fixedly provided on the connecting plate, one end of the first jacket is also hinged with a second semi-circular cylindrical jacket through a hinge, the first jacket and the second jacket are combined to form a cylindrical jacket, the other ends of the first jacket and the second jacket are respectively provided with locking parts, and the other ends of the first jacket and the second jacket are connected by the locking parts.

[0012] By customizing a jacket slightly smaller than the outer diameter of the reel, when the reel needs to be installed, the connection of the locking piece is released, the jacket is opened, the reel is placed in the first jacket, and then the second jacket is rotated and buckled, and the locking piece is locked, so that the jacket clamps the reel, so that the reel rotates when the shaft rotates. When the reel needs to be taken out after winding, the jacket can be opened to quickly take out the reel, and a new reel can be quickly replaced.

[0013] A further technical solution is that a driven wheel is further provided on one of the rotating shafts, a driving wheel is further provided on the output shaft of the servo motor, and the driven wheel and the driving wheel are drivingly connected.

[0014] A further technical solution is that the damping adjustment mechanism includes a groove opened on the side wall of the damping sleeve, the groove is connected to the side wall of the measuring rod inserted in the damping sleeve, and a bridge plate fixed on the damping sleeve is also provided at the top of the groove, and a damping block for pressing against the side wall of the measuring rod is also provided in the groove between the bridge plate and the measuring rod, and a second sliding rod is fixed to the end of the damping block facing the bridge plate, the second sliding rod is slidably inserted in the bridge plate, and an adjusting bolt is also threadedly inserted in the bridge plate, and the bottom of the adjusting bolt is rotatably connected to the damping block through a rotating connecting piece, and the central axis of the second sliding rod is parallel to the central axis of the adjusting bolt.

[0015] When using the above solution, the adjusting bolt is rotated to move in the bridge plate, thereby driving the damping block to move closer to or away from the measuring rod, thereby changing the pressure between the damping block and the side wall of the measuring rod, thereby changing the resistance encountered by the measuring rod when sliding.

[0016] A further technical solution is that the damping block is made of hard material, an arc groove is formed at one end of the damping block facing the measuring rod, an arc-shaped damping sheet is fixed in the arc groove, and the arc-shaped damping sheet completely fits the side wall of the measuring rod.

[0017] By arranging the arc groove and the arc-shaped damping sheet, the contact between the damping block and the measuring rod is made more stable, and the damping effect is made more stable.

[0018] The beneficial effects of the utility model are:

[0019] 1. By setting a jacket that can be quickly disassembled and assembled, the connection between the rotating shaft and the reel is realized, and the reel for winding larger packaging film can be quickly replaced. Then, by setting a roller and a linear displacement sensor for real-time measurement of the outermost radius of the packaging film, in conjunction with the controller and the servo motor, the angular velocity of the servo motor is controlled through the conversion relationship between the linear velocity, radius and angular velocity, thereby adjusting the speed of the reel, so that the packaging film can pass through the printing equipment and drying equipment at a uniform speed.

[0020] 2. By setting the roller, the measuring rod can be pushed and moved by the increasing outer layer of the packaging film without scratching the packaging film.

[0021] 3. By setting the damping sleeve and the damping adjustment mechanism, the measuring rod can have a certain sliding damping, which prevents the measuring rod from moving randomly in the damping sleeve. The measuring rod can only move when the packaging film layer is against the roller, and is not affected by gravity and inertia, thereby improving the real-time measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the elevation structure diagram of the device;

[0023] Figure 2 for Figure 1 Top view

[0024] Figure 3 for Figure 2 Sectional view of the jacket along line BB;

[0025] Figure 4 for Figure 1 A magnified view of the structure at center;

[0026] Figure 5 for Figure 4 A top view of the structure;

[0027] Figure 6 for Figure 4 Cross-sectional view along line CC.

[0028] In the figure, 1, base, 2, mounting frame, 3, packaging film, 4, rotating shaft, 5, driven wheel, 6, servo motor, 7, driving wheel, 8, bracket, 9, first mounting plate, 10, linear displacement sensor, 11, roller, 12, second mounting plate, 13, jacket, 14, reel, 15, first slide bar, 16, damping sleeve, 17, controller, 18, first jacket, 19, second jacket, 20, connecting plate, 21, hinge, 22, first connecting block, 23, second connecting block, 24, fastening bolt, 25, connecting rod, 26, coupling, 27, measuring rod. 28, sleeve, 29, groove, 30, damping block, 31, bridge plate, 32, second slide bar, 33, adjusting bolt, 34, rotating connecting member, 35, support rod, 36, arc groove, 37, arc damping sheet. DETAILED DESCRIPTION

[0029] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0030] See also Figures 1 to 6A packaging film 3 winding device includes a controller 17, a base 1 and a servo motor 6 arranged on the base 1, a bracket 8 and two mounting frames 2 arranged opposite to each other.

[0031] The controller 17 adopts an STM32 single chip microcomputer or a SMART200 PLC controller 17 .

[0032] The two mounting frames 2 are both rotatably mounted with a rotating shaft 4, the central axes of the two rotating shafts 4 are on the same straight line, and the opposite ends of the two rotating shafts 4 are also provided with a jacket 13 that can be opened and closed, and the jacket 13 includes a connecting plate 20 fixedly mounted on the rotating shaft 4, and a first jacket 18 in the shape of a semi-circular cylinder is fixedly mounted on the connecting plate 20, and a second jacket 19 in the shape of a semi-circular cylinder is hingedly connected to one end of the first jacket 18 through a hinge 21, and the first jacket 18 and the second jacket 19 are surrounded to form a cylindrical jacket 13. The other ends of the first jacket 18 and the second jacket 19 are also respectively provided with locking members, which are a first connecting block 22 arranged on the first jacket 18 and a second connecting block 23 arranged on the second jacket 19, and the first connecting block 22 and the second connecting block 23 are threadedly fastened by fastening bolts 24, and the other ends of the first jacket 18 and the second jacket 19 are locked and connected by the first connecting block 22 and the second connecting block 23.

[0033] A driven wheel 5 is also provided on one of the rotating shafts 4, and a driving wheel 7 is also provided on the output shaft of the servo motor 6. The driven wheel 5 and the driving wheel 7 are pulleys of the same size and specification, and the driven wheel 5 and the driving wheel 7 are connected by belt drive.

[0034] A first mounting plate 9 is provided on the bracket 8, and the upper end surface of the first mounting plate 9 is horizontally arranged. Three damping sleeves 16 and a linear displacement sensor 10 are also provided on the first mounting plate 9. The damping sleeve 16 includes a sleeve body 28, and the sleeve body 28 is arranged on the first mounting plate 9 through a support rod 35. The measuring rod 27 of the linear displacement sensor 10 is slidably inserted into the damping sleeve 16. The telescopic direction of the measuring rod 27 is parallel to the radial direction of the rotating shaft 4 and vertically points to the central axis of the rotating shaft 4. The telescopic direction of the measuring rod 27 is horizontal extension.

[0035] A second strip-shaped mounting plate 12 is provided above the first mounting plate 9. Three rollers 11 are rotatably mounted on the side of the second mounting plate 12 facing the reel 14. The central axis of the roller 11 is parallel to the central axis of the rotating shaft 4, and the three rollers 11 are arranged at equal intervals. Two first slide bars 15 are also provided on the side of the second mounting plate 12 facing the linear displacement sensor 10. The two first slide bars 15 are respectively slidably inserted into the other two damping sleeves 16. The first slide bars 15 and the measuring rod 27 are parallel to each other and are arranged at equal intervals. The sliding direction of the first slide bar 15 is perpendicular to the central axis of the rotating shaft 4. A connecting rod 25 is also provided on the side of the second mounting plate 12 facing the linear displacement sensor 10. The measuring rod 27 and the connecting rod 25 are connected by a coupling 26.

[0036] The damping sleeve 16 is also provided with a damping adjustment mechanism for adjusting the sliding resistance of the measuring rod 27 and the first slide bar 15 in the damping sleeve 16. The damping adjustment mechanism includes a groove 29 opened on the side wall of the damping sleeve 16. The groove 29 is connected to the measuring rod 27 and the side wall of the first slide bar 15 which are inserted into the damping sleeve 16. A bridge plate 31 fixed to the damping sleeve 16 is also provided at the top of the groove 29. A rectangular hard damping block 30 for pressing against the side wall of the measuring rod 27 is also provided in the groove 29 between the bridge plate 31 and the measuring rod 27. A second slide bar 32 is fixed to one end of the damping block 30 facing the bridge plate 31. The second slide bar 32 is slidably inserted into the bridge plate 31. An adjusting bolt 33 is screwed into the bridge plate 31. The bottom of the adjusting bolt 33 is rotatably connected to the damping block 30 through a rotating connector 34. The central axis of the second slide bar 32 is parallel to the central axis of the adjusting bolt 33. The damping block 30 has an arc groove 36 at one end facing the measuring rod 27 and the first slide bar 15. An elastic arc-shaped damping sheet 37 is fixed in the arc groove 36. The arc-shaped damping sheet 37 completely fits the side walls of the measuring rod 27 and the first slide bar 15. Preferably, the arc-shaped damping sheet 37 is made of rubber material.

[0037] The linear displacement sensor 10 , the servo motor 6 and the controller 17 are electrically connected.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A packaging film winding device, characterized in that: It includes a controller, a base and a servo motor arranged on the base, a bracket and two mounting brackets arranged oppositely, each of the two mounting brackets is rotatably installed with a rotating shaft, the central axes of the two rotating shafts are on the same straight line, and the opposite ends of the two rotating shafts are also provided with an openable and closable clamping sleeve, one of the rotating shafts is connected to the servo motor, and a first mounting plate is also provided on the bracket, and a damping sleeve and a linear displacement sensor are also provided on the first mounting plate, a measuring rod of the linear displacement sensor is slidably inserted into the damping sleeve, the telescopic direction of the measuring rod is parallel to the radial direction of the rotating shaft and vertically points to the central axis of the rotating shaft, and a damping adjustment mechanism for adjusting the sliding resistance of the measuring rod in the damping sleeve is also provided on the damping sleeve, the other end of the measuring rod is also connected to a second mounting plate, and a roller is also rotatably installed on the other end surface of the second mounting plate, and the central axis of the roller is parallel to the central axis of the rotating shaft, and the linear displacement sensor, the servo motor and the controller are electrically connected.

2. A packaging film winding device according to claim 1, characterized in that: The number of rollers rotatably mounted on the other surface of the second mounting plate is at least three, and the rollers are arranged at equal intervals. The second mounting plate is also provided with at least two first sliding bars on the side facing the linear displacement sensor. The first sliding bars and the measuring bars are parallel to each other and are arranged at equal intervals. The first mounting plate is also provided with damping sleeves with the same number as the first sliding bars. The first sliding bars are slidably inserted into the corresponding damping sleeves, and the sliding direction of the first sliding bars is perpendicular to the central axis of the rotating shaft.

3. The packaging film winding device according to claim 1, characterized in that: The jacket comprises a connecting plate arranged on a rotating shaft, on which a first jacket in the shape of a semi-circular cylinder is fixedly provided, one end of the first jacket is hingedly connected to a second jacket in the shape of a semi-circular cylinder via a hinge, the first jacket and the second jacket are combined to form a cylindrical jacket, the other ends of the first jacket and the second jacket are respectively provided with locking parts, and the other ends of the first jacket and the second jacket are connected via the locking parts.

4. The packaging film winding device according to claim 1, characterized in that: A driven wheel is also provided on one of the rotating shafts, and a driving wheel is also provided on the output shaft of the servo motor, and the driven wheel is drivingly connected to the driving wheel.

5. A packaging film winding device according to any one of claims 1 to 4, characterized in that: The damping adjustment mechanism includes a groove opened on the side wall of the damping sleeve, the groove is connected to the side wall of the measuring rod inserted in the damping sleeve, a bridge plate fixed on the damping sleeve is also provided at the top of the groove, a damping block for pressing against the side wall of the measuring rod is also provided in the groove between the bridge plate and the measuring rod, a second sliding rod is fixed to the end of the damping block facing the bridge plate, the second sliding rod is slidably inserted in the bridge plate, an adjusting bolt is also threadedly inserted in the bridge plate, the bottom of the adjusting bolt is rotatably connected to the damping block through a rotating connecting piece, and the central axis of the second sliding rod is parallel to the central axis of the adjusting bolt.

6. The packaging film winding device according to claim 5, characterized in that: The damping block is made of hard material. An arc groove is formed at one end of the damping block facing the measuring rod. An arc-shaped damping sheet is fixed in the arc groove. The arc-shaped damping sheet completely fits the side wall of the measuring rod.

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