Automatic film winding device and winding method

Abstract

The invention belongs to the technical field of thin film production, and particularly relates to an automatic thin film winding device and method. The feeding receiving assembly is arranged on one side of the rack; the rolling bearing assembly is arranged on the other side of the rack; the tensioning adjusting unit is arranged on the rack and located between the feeding bearing assembly and the rolling bearing assembly; the feeding detection assembly is located between the tensioning adjusting unit and the feeding bearing assembly; the winding detection assembly is arranged between the winding bearing assembly and the tensioning adjusting unit; according to the device, the tension of the wound film can be adjusted in time through the tension adjusting unit, so that the wound film is prevented from loosening or wrinkling.

Description

Technical Field

[0001] The present invention belongs to the technical field of film production, and in particular relates to an automatic film winding device and a winding method. Background Art

[0002] With the continuous advancement of science and technology, the application range of optical materials is becoming wider and wider. Due to its superior mechanical properties, mechanical properties and optical properties, polyester film has a wide range of applications in liquid crystal display, in-mold decoration, and optical protection.

[0003] After the film is produced, it needs to be wound using a roll core for subsequent transportation, processing, and sales. However, during the winding process, the film is prone to problems such as winding slack due to the asynchronous speed of winding and feeding, which has a certain impact on the winding work and may cause the wound film to have certain wrinkles and deformations, thereby affecting subsequent operations. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned technical problems and provide a winding device and a winding control method that have a simple structure, are convenient for film winding, and can ensure the film winding effect.

[0005] In view of this, the present invention provides an automatic film winding device, comprising: frame; The feed receiving assembly is arranged on one side of the frame; The winding receiving assembly is arranged on the other side of the frame; A tensioning adjustment unit is provided on the frame and is located between the feeding receiving assembly and the winding receiving assembly; The feed detection component is located between the tension adjustment unit and the feed receiving component; The winding detection component is arranged between the winding receiving component and the tensioning adjustment unit.

[0006] In the above technical solution, further, the tensioning adjustment unit includes: Several tension adjustment components are distributed on the frame alternately up and down; The tension adjustment components include: A support plate is mounted on the frame; A support frame is arranged toward the direction in which the film passes; a tensioning roller, which is arranged at the end of the support frame and can contact the film; The adjustment frame is arranged on the support plate, the upper end of which is connected to the support frame and can drive the support frame to move up and down; One end of the side guide rod is fixedly connected to the support plate, and the other end is slidably matched with the support frame.

[0007] In the above technical solution, further, the tension adjustment component also includes: Two side guide frames are respectively arranged on both sides of the support plate and guide the tensioning roller; The side guide frame includes: an end connecting rod, one end of which is fixedly connected to the end of the tensioning roller and the other end of which extends outward; The end sliding member is sleeved on the end connecting rod and is a rolling bearing; The end limit guide rail is formed with a vertical slide groove, the end connecting rod extends into the slide groove, and the end sliding member rolls with the inner wall of the slide groove.

[0008] In the above technical solution, further, the adjustment frame includes: Two slides are arranged in a straight line, each with a lead screw, a slide rail, a lead screw nut and a support plate; A support block is provided between the two slides and is formed with a through hole; A coupling is located in the through hole and connects the screws on the two slides; a drive motor, disposed on one of the slides; Two oblique drive rods are distributed in a ∧-shaped or ∨-shaped configuration, one end of which is connected to the support plate on the slide on the side where it is located, and the other end is connected to the middle of the support frame; The telescopic receiving mechanism is provided on the support block, with one end connected to the support block and the other end fixedly connected to the middle of the support frame; The telescopic receiving mechanism is located between the two oblique driving rods.

[0009] In the above technical solution, further, the adjustment frame also includes: Support seat, one is provided at each end of each oblique driving rod, and the oblique driving rod is connected to the supporting plate and the supporting frame respectively through the support seat at both ends; The support base includes: A fixed frame, fixedly connected to the support plate or support frame on the slide; A support shaft is arranged on a fixed frame; An external connecting cylinder is sleeved outside the supporting shaft; a positioning ring, which is provided on the fixing frame and is coaxially formed outside the supporting shaft and inside the outer connecting cylinder; An inner bearing is provided between the positioning ring and the outer connecting cylinder; An end gland is provided at the end of the outer connecting cylinder and is coaxially located outside the supporting shaft; An outer bearing is provided between the outer support shaft and the short end gland; The outer limit ring is threadedly connected to the end gland and prevents the outer bearing from moving outward; In the above technical solution, further, the support seat also includes: A middle receiving mechanism is arranged in the middle of the outer connecting tube; The central undertaking institutions include: Two side sliding rings are sleeved on the supporting shaft; The inner support ring is arranged between the two side sliding rings, and the outer wall of the inner support ring is formed with a plurality of evenly distributed rolling grooves; A plurality of rotating rollers are evenly arranged in the rolling groove of the inner support ring according to the circumference and are in rotational contact with the inner wall of the outer connecting cylinder; The inner wall of the inner support ring is provided with a plurality of limiting ribs evenly distributed along the circumference, and the support shaft is provided with limiting grooves that cooperate with the limiting ribs.

[0010] In the above technical solution, further, the telescopic receiving mechanism includes: An outer support tube, one end of which is connected to the support block and the other end of which is disposed toward the support frame; An inner telescopic rod is disposed in the outer support tube and extends out of the outer support tube, and a driving hole is formed inwardly at one end of the inner telescopic rod facing the outer support tube; The outer piston cylinder is arranged at one end of the inner telescopic rod located in the outer support cylinder, and the end away from the inner telescopic rod is formed with a sealing portion that slides with the outer support cylinder; an inner chamber formed between an end of the sealing portion of the outer piston cylinder and a bottom of the outer support cylinder; an outer chamber formed between a side of the outer piston cylinder without the sealing portion and a side wall of the outer support cylinder; An inner valve stem is disposed in the inner drive hole and extends into and out of the outer piston cylinder; The connection between the inner chamber and the outer chamber is opened or cut off by the displacement of the inner valve stem.

[0011] In the above technical solution, further, the telescopic receiving mechanism also includes: An internal return spring is arranged in the internal drive hole, and a sealing section is formed at one end of the internal valve stem located in the internal drive hole, and the two ends of the internal return spring respectively abut against the outer piston cylinder and the sealing section; A circulation hole is provided on the inner telescopic rod and is connected to the driving hole. Compressed air is supplied into the circulation hole to push the inner valve stem to move. An inner valve core is provided with a valve cavity inwardly at one end of the outer piston cylinder away from the inner telescopic rod. The inner valve core is arranged in the valve cavity. The inner valve stem passes through the inner valve core and opens or cuts off the connection between the inner valve core and the inner chamber through the displacement of the inner valve stem. a side connection hole formed in the side wall of the outer piston cylinder and connecting the inner valve core with the outer chamber; The inner valve core is a hollow structure with two ends connected. The outer wall is a regular polygon and is formed with a plurality of liquid holes, which are connected with the side connection holes.

[0012] In the above technical solution, further, the telescopic receiving mechanism also includes: The end fixing ring is set at the valve cavity port to prevent the inner valve core from detaching; A limiting hoop is provided at one end of the inner valve stem extending out of the inner valve core, and prevents the inner valve stem from being separated from the inner valve core through the limiting hoop; A plurality of sealing rings are respectively arranged on the outer wall of the sealing portion, between the inner valve core and the outer piston cylinder, and between the inner telescopic rod and the outer piston cylinder.

[0013] A winding method for an automatic film winding device, wherein the winding device is provided with an external control cabinet, wherein the control cabinet is provided with a controller and a control circuit. The operation of the winding device is controlled by the cooperation of the controller and the control circuit. The controller is provided with a tension threshold required for film winding. The winding motor, the drive motor and the two-position three-way solenoid valve are programmed and controlled by the controller, and the tension detector transmits the detected tension value to the controller.

[0014] The winding control method of the device includes: Step 1: obtaining a first tension value of the film passing through the feed receiving component through the feed detection component, and determining whether the first tension value is within a tension threshold; Step 2: If the first tension value is lower than the tension threshold, one or more tension adjustment components in the tension adjustment unit are controlled to operate to increase the tension value of the film; if the first tension value is within the tension threshold, the current state of the tension adjustment unit is maintained; if the first tension value is greater than the tension threshold, one or more tension adjustment components in the tension adjustment unit are controlled to operate and reset to reduce the tension value of the film; Step 3: Detecting the second tension value of the film entering the winding receiving assembly through the winding detection assembly to determine whether the second tension value is within the tension threshold; Step 4: If the second tension value is lower than the tension threshold, the winding speed of the winding receiving component is increased; if the second tension value is within the tension threshold, the winding speed of the winding receiving component is maintained; if the second tension value is higher than the tension threshold, the winding speed of the winding receiving component is reduced.

[0015] The beneficial effects of the present invention are: 1. The winding device can adjust the tension of the wound film in time through the tension adjustment unit to prevent the wound film from becoming loose or wrinkled; 2. The winding method uses two-stage detection and two-time adjustment to better adjust the film tension to ensure the stability of film winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a schematic cross-sectional view of the present invention; Figure 3 is a structural schematic diagram of the tension adjusting assembly in the application; Figure 4 is a sectional schematic diagram of the tension adjusting assembly in the application; Figure 5 is a lateral sectional schematic diagram of the support seat in the application; Figure 6 is a longitudinal sectional schematic diagram of the support seat in the application; Figure 7 is a structural schematic diagram of the telescopic receiving mechanism in the application; The figure marks are as follows: 1-supporting plate, 2-supporting frame, 3-tension roller, 4-side guide rod, 5-end connecting rod, 6-end sliding piece, 7-end limiting guide rail, 8-sliding table, 9-supporting block, 10-driving motor, 11-inclined driving rod, 12-fixing frame, 13-supporting shaft, 14-outer connecting cylinder, 15-inner bearing, 16-end gland, 17-outer bearing, 18-outer limiting ring, 19-side sliding ring, 20-inner supporting ring, 21-rotary roller, 22-limiting rib, 23-outer supporting cylinder, 24-inner telescopic rod, 25-driving hole, 26-outer piston cylinder, 27-sealing part, 28-inner cavity, 29-outer cavity, 30-inner valve rod, 31-inner return spring, 32-circulating hole, 33-inner valve core, 34-side connecting hole, 35-liquid passing hole, 36-end fixing ring, 37-limiting hoop, 100-tension adjusting assembly, 101-rack, 102-feed receiving assembly, 103-winding receiving assembly, 104-feed detection assembly, 105-winding detection assembly. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the application.

[0018] Embodiment 1 The embodiment provides a thin film automatic winding device, which comprises: a rack 101; a feed receiving assembly 102 arranged on one side of the rack 101; a winding receiving assembly 103 arranged on the other side of the rack 101; a tension adjusting unit arranged on the rack 101 and located between the feed receiving assembly 102 and the winding receiving assembly 103; a feed detection assembly 104 located between the tension adjusting unit and the feed receiving assembly 102; The winding detection component 105 is arranged between the winding receiving component 103 and the tensioning adjustment unit.

[0019] In this embodiment, the path for the film to enter the winding device is to first pass through the feed receiving component 102, then be detected by the feed detection component 104, adjust the tension by the tensioning adjustment component 100, then be detected by the winding detection component 105, and finally be rolled up and fixed on the winding core by the winding receiving component 103.

[0020] The feed receiving assembly 102 includes several freely rotatable feed receiving rollers. To ensure the passage of the film, an external motor can be installed to drive the feed receiving roller located on the side of the tensioning adjustment unit to rotate. The winding receiving assembly 103 includes several freely rotatable winding receiving rollers. A winding receiving roller located away from the feed receiving assembly 102 is the main winding roller. The main winding roller is driven by an external winding motor and is used to place the winding core. The feed detection assembly 104 and the discharge detection assembly each include two detection receiving rollers and a detection roller with a tension detector arranged between the two detection receiving rollers. The feed detection assembly 104 detects the tension of the film passing through the feed receiving assembly 102. The winding detection assembly 105 detects the tension of the film to be entered into the winding receiving assembly 103. The tension value is adjusted in time by the tensioning adjustment unit to adjust the tension of the passing film, thereby preventing the wound film from becoming loose or wrinkled. In order to ensure the passage of the film, the device also includes a number of freely rotatable guide rollers that guide the film.

[0021] Example 2: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] The tension adjustment unit includes: A plurality of tension adjustment assemblies 100 are alternately distributed on the frame 101 in an upper and lower arrangement; The tension adjustment assembly 100 includes: Support plate 1, mounted on the frame 101; Support frame 2, arranged in the direction of film passing; a tensioning roller 3, which is arranged at the end of the support frame 2 and can contact the film; The adjustment frame is arranged on the support plate 1, the upper end of which is connected to the support frame 2 and can drive the support frame 2 to move up and down; One end of the side guide rod 4 is fixedly connected to the support plate 1 , and the other end is slidably engaged with the support frame 2 .

[0023] In this embodiment, the film passes through the middle of a plurality of tension adjustment components 100 that are alternately distributed up and down; the up and down floating conditions of the film are changed by driving the tension adjustment components 100. by Adjust film tension. The support plate 1 in the tension adjustment assembly 100 facilitates installation of the tension adjustment assembly 100 on the frame 101. The support frame 2 is used to mount and secure the tension roller 3, which is freely rotatable on the support frame 2, thereby reducing friction on the film and ensuring the film's passage. The adjustment frame can adjust the distance by which the tension roller 3 lifts or presses down the film, thereby adjusting the floating amplitude of the film at that location. The side guide rods 4 provide good guidance for the support frame 2, ensuring its stability during vertical displacement and preventing it from shaking.

[0024] Example 3: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] The tension adjustment assembly 100 further includes: Two side guide frames are respectively arranged on both sides of the support plate 1 and guide the tensioning roller 3; The side guide frame includes: An end connecting rod 5, one end of which is fixedly connected to the end of the tensioning roller 3 and the other end of which extends outward; The end sliding member 6 is sleeved on the end connecting rod 5 and is a rolling bearing; The end limit guide rail 7 is formed with a vertical slide groove, the end connecting rod 5 extends into the slide groove, and the end sliding member 6 is in rolling cooperation with the inner wall of the slide groove.

[0026] In this embodiment, the side guide frames provide effective guidance for the tension roller 3 on both sides of the support plate 1, thereby ensuring the stability of the tension roller 3 when the support frame 2 moves. The end support rods in the side guide frames extend the length of the tension roller 3 at both ends, and the end sliding assemblies are arranged on the connecting rods. As the support frame 2 drives the tension roller 3 up and down, it can move smoothly along the slide grooves on the end limit guide rails 7, ensuring smooth rotation of the tension roller 3. The end sliding member 6 rolls with the inner wall of the slide groove, thereby reducing resistance to its up and down movement.

[0027] Example 4: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] The adjustment frame includes: Two slides 8 are arranged in a straight line, each having a screw, a slide rail, a screw nut and a support plate; A support block 9 is provided between the two slides 8 and has a through hole formed thereon; A coupling is located in the through hole and connects the screws on the two slides 8; A drive motor 10 is provided on one of the slides 8; Two oblique drive rods 11 are distributed in a ∧-shaped or ∨-shaped manner, one end of which is connected to the support plate on the slide 8 on the side where it is located, and the other end is connected to the middle part of the support frame 2; The telescopic receiving mechanism is provided on the support block 9, and one end is connected to the support block 9, and the other end is fixedly connected to the middle of the support frame 2; The telescopic receiving mechanism is located between the two oblique driving rods 11 .

[0029] In this embodiment, the screws on the two slides 8 are driven to rotate by a drive motor 10. When the motor is driven, the pallets on the two slides 8 move in opposite directions, that is, the pallets on the two slides 8 move toward or away from each other synchronously. The coupling connects the screws on the two slides 8, thereby ensuring synchronous rotation of the screws on the two slides 8. The two inclined drive rods 11 in the upper tension adjustment assembly 100 are arranged in a ∨ shape, while the two inclined drive rods 11 in the lower tension adjustment assembly 100 are arranged in a ∧ shape. Because the length of the inclined drive rods 11 is fixed, the angle between the two inclined drive rods 11 is changed by the displacement of the pallets on the two slides 8 to adjust the distance that the support frame 2 moves up or down, thereby changing the pressure of the tension roller 3 on the film, thereby adjusting the floating amplitude of the film and increasing or decreasing the film tension. The provision of a telescopic support mechanism ensures the stability of the support frame 2 when stationary, preventing the support frame 2 from sliding and affecting the film tension. The telescopic support mechanism also improves the support effect of the support frame 2.

[0030] Example 5: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] The adjustment stand also includes: Support seat, each oblique driving rod 11 is provided with one at both ends, and the oblique driving rod 11 is connected to the support plate and the support frame 2 respectively through the support seat at both ends; The support base includes: The fixing frame 12 is fixedly connected to the support plate or the support frame 2 on the slide 8; A support shaft 13 is provided on the fixing frame 12; The outer connecting cylinder 14 is sleeved outside the supporting shaft 13; A positioning ring is provided on the fixing frame 12 and is coaxially formed outside the support shaft 13 and inside the outer connecting cylinder 14; The inner bearing 15 is provided between the positioning ring and the outer connecting cylinder 14; The end gland 16 is provided at the end of the outer connecting cylinder 14 and is coaxially located outside the support shaft 13; An outer bearing 17 is provided between the outer support shaft 13 and the short end gland 16; The outer limiting ring 18 is threadedly connected to the end gland 16 and prevents the outer bearing 17 from moving outward; In this embodiment, the connecting support seat facilitates the connection between the tilting drive rod 11 and the support plate or support frame 2, and ensures smooth adjustment of the angle between the two tilting drive rods 11. The fixing frame 12 facilitates the installation and fixation of the support seat, and the support seat can be fixedly connected to the support plate or support frame 2 by bolts. The support shaft 13 is used to support the outer connecting tube 14. The outer connecting tube 14 is sleeved outside the support shaft 13 and can rotate relative to the support shaft 13 under the support of the inner bearing 15 and the outer bearing 17. The connecting tube is fixed to the end of the tilting drive rod 11, so that the two ends of the tilting drive rod 11 can swing freely relative to the support plate or support frame 2 to facilitate angle adjustment. The provision of the positioning ring facilitates the installation of the inner bearing 15. The provision of the end pressure cover 16 facilitates the installation and fixation of the outer bearing 17. The outer limiting ring 18 can limit the outer bearing 17 and simultaneously limit the outer connecting tube 14 and the end pressure cover 16 on the support shaft 13.

[0032] Example 6: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0033] The support base also includes: The middle receiving mechanism is arranged in the middle of the outer connecting tube 14; The central undertaking institutions include: Two side sliding rings 19 are sleeved on the support shaft 13; The inner support ring 20 is arranged between the two side sliding rings 19, and the outer wall thereof is formed with a plurality of evenly distributed rolling grooves; A plurality of rotating rollers 21 are evenly arranged in a circumferential manner in the rolling groove of the inner support ring 20 and are in rotational contact with the inner wall of the outer connecting cylinder 14; The inner wall of the inner support ring 20 is provided with a plurality of limiting ribs 22 evenly distributed along the circumference, and the support shaft 13 is provided with limiting grooves that cooperate with the limiting ribs 22 .

[0034] In this embodiment, the middle supporting mechanism can further support the external connecting tube 14; the setting of the middle supporting mechanism ensures that the external connecting tube 14 can better rotate on the support shaft 13; wherein the inner support ring 20 is used to provide a limiting and installation space for the rotating roller 21, and the setting of the limiting rib 22 and the limiting groove can prevent the support ring from rotating, while the rotating roller 21 can rotate freely, thereby reducing the friction during the rotation of the external connecting tube 14 to ensure the smooth rotation of the external connecting tube 14, and the setting of the side sliding ring 19 is used to prevent the rotating roller 21 from shifting.

[0035] Example 7: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] The telescopic bearing mechanism includes: The outer support tube 23 has one end connected to the support block 9 and the other end disposed toward the support frame 2; The inner telescopic rod 24 is disposed in the outer support tube 23 and extends out of the outer support tube 23, and a driving hole 25 is formed inwardly at one end of the inner telescopic rod 24 facing the outer support tube 23; The outer piston cylinder 26 is provided at one end of the inner telescopic rod 24 located inside the outer support cylinder 23 and has a sealing portion 27 formed at the end away from the inner telescopic rod 24 and slidably engaged with the outer support cylinder 23; an inner chamber 28 formed between the end of the sealing portion 27 of the outer piston cylinder 26 and the bottom of the outer support cylinder 23; The outer chamber 29 is formed between the side of the outer piston cylinder 26 without the sealing portion 27 and the side wall of the outer support cylinder 23; The inner valve stem 30 is disposed in the inner driving hole 25 and extends into the outer piston cylinder 26 and can pass through the outer piston cylinder 26; The displacement of the inner valve stem 30 opens or cuts off the connection between the inner chamber 28 and the outer chamber 29 .

[0037] In this embodiment, a support flange is formed at one end of the outer support tube 23 connected to the support block 9, and the support flange is fixed to the support plate 1 by bolts; the inner telescopic rod 24 is threadedly connected to a fixing joint at one end of the support frame 2, and the fixing joint is fixed to the support frame 2 by bolts; and the inner chamber 28 and the outer chamber 29 are both filled with buffer solution; the connection between the inner chamber 28 and the outer chamber 29 is opened or cut off by the movement of the inner valve stem 30; when the inner chamber 28 and the outer chamber 29 are connected, the buffer solutions in the inner chamber 28 and the outer chamber 29 can flow with each other, so that no excessive resistance will be generated when the inner telescopic rod 24 moves up and down; and when the inner chamber 28 and the outer chamber 29 are disconnected, the buffer solutions in the inner chamber 28 and the outer chamber 29 cannot flow, thereby achieving a good buffering and supporting effect; thereby preventing the support frame 2 from sliding vertically due to gravity.

[0038] Example 8: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0039] The telescopic bearing mechanism also includes: The inner return spring 31 is disposed in the inner drive hole 25, and a sealing section is formed at one end of the inner valve stem 30 located in the inner drive hole 25. The two ends of the inner return spring 31 respectively abut against the outer piston cylinder 26 and the sealing section; The circulation hole 32 is provided on the inner telescopic rod 24 and is connected to the driving hole 25. The inner valve stem 30 is pushed to move by supplying compressed air into the circulation hole 32. An inner valve core 33 is provided with a valve cavity inwardly at one end of the outer piston cylinder 26 away from the inner telescopic rod 24. The inner valve core 33 is disposed in the valve cavity. The inner valve stem 30 passes through the inner valve core 33 and the displacement of the inner valve stem 30 opens or cuts off the connection between the inner valve core 33 and the inner chamber 28. a side connection hole 34 formed in the side wall of the outer piston cylinder 26 and connecting the inner valve core 33 with the outer chamber 29; The inner valve core 33 is a hollow structure with two ends connected. The outer wall is a regular polygon with a plurality of liquid holes 35 formed on the outer wall. The liquid holes 35 are connected to the side connection holes 34.

[0040] In this embodiment, the provision of circulation hole 32 facilitates the entry of compressed air into drive hole 25, thereby pushing inner valve stem 30 outward from outer piston cylinder 26 and connecting inner chamber 28 with outer chamber 29. The provision of internal return spring 31 facilitates the reset of inner valve stem 30, thereby disconnecting inner chamber 28 from outer chamber 29. A two-position, three-way solenoid valve is connected to circulation hole 32 via a pipe. One position of the solenoid valve core connects circulation hole 32 to a compressed air source, while the other position of the solenoid valve core connects circulation hole 32 to the outside world. The provision of internal valve core 33 provides a good connection. The provision of side connection hole 34 and liquid passage hole 35 facilitates the entry and exit of buffer solution into and out of inner chamber 28.

[0041] Example 9: This embodiment provides an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] The telescopic bearing mechanism also includes: The end fixing ring 36 is provided at the valve cavity port to prevent the inner valve core 33 from being separated; A limiting hoop 37 is provided at one end of the inner valve stem 30 extending from the inner valve core 33 to prevent the inner valve stem 30 from being separated from the inner valve core 33; Several sealing rings are respectively arranged on the outer wall of the sealing portion 27, between the inner valve core 33 and the outer piston cylinder 26, and between the inner telescopic rod 24 and the outer piston cylinder 26.

[0043] In this embodiment, the setting of the end fixing ring 36 can limit the inner valve core 33, and the setting of the limiting hoop 37 can limit the inner valve stem 30; and the setting of the sealing ring can ensure the sealing of the connection between the inner telescopic rod 24 and the inner valve core 33 and the outer piston; at the same time, it can ensure the sealing effect of the outer piston cylinder 26 when it slides in the outer support cylinder 23.

[0044] Example 10: This embodiment provides a winding method for an automatic film winding device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The winding device is equipped with an external control cabinet, which contains a controller and a control circuit. The operation of the winding device is controlled by the cooperation of the controller and the control circuit. The controller is provided with a tension threshold required for film winding. The winding motor, the drive motor 10 and the two-position three-way solenoid valve are programmed and controlled by the controller, and the tension detector transmits the detected tension value to the controller.

[0046] The winding control method of the device includes: Step 1: obtaining a first tension value of the film passing through the feed receiving component 102 through the feed detecting component 104, and determining whether the first tension value is within a tension threshold; Step 2: If the first tension value is lower than the tension threshold, one or more tension adjustment components 100 in the tension adjustment unit are controlled to operate to increase the tension value of the film; if the first tension value is within the tension threshold, the current state of the tension adjustment unit is maintained; if the first tension value is greater than the tension threshold, one or more tension adjustment components 100 in the tension adjustment unit are controlled to operate and reset to reduce the tension value of the film; Step 3: The winding detection component 105 detects the second tension value of the film entering the winding receiving component 103 and determines whether the second tension value is within the tension threshold; Step 4: If the second tension value is lower than the tension threshold, the winding speed of the winding receiving component 103 is increased; if the second tension value is within the tension threshold, the winding speed of the winding receiving component 103 is maintained; if the second tension value is higher than the tension threshold, the winding speed of the winding receiving component 103 is reduced.

[0047] In this embodiment, the device is equipped with an encoder to monitor the number of revolutions of the film winding receiving assembly 103. The speed of each film winding rotation is determined by detecting the number of revolutions, thereby facilitating adjustment. A sensor is also provided to detect the distance between each tensioning roller 3 and the support plate 1 in the tension adjustment assembly 100, thereby accurately controlling the position of each tensioning roller 3 and achieving precise adjustment of the film tension. The tension of the film passing through the feed receiving assembly 102 is monitored. If the tension is abnormal, the tension adjustment assembly 100 is used. Furthermore, the tension of the film to be entered into the winding receiving assembly 103 is monitored. If the tension is abnormal, the winding speed is adjusted promptly. Through these two detection and adjustment steps, the film winding effect is guaranteed and the wound film is prevented from becoming loose or wrinkled.

[0048] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An automatic film winding device, characterized in that: include: Rack(101); A feed receiving assembly (102) is provided on one side of the frame (101); A winding receiving assembly (103) is arranged on the other side of the frame (101); A tensioning adjustment unit is provided on the frame (101) and is located between the feed receiving assembly (102) and the winding receiving assembly (103); A feed detection assembly (104) is located between the tensioning adjustment unit and the feed receiving assembly (102); The winding detection component (105) is arranged between the winding receiving component (103) and the tensioning adjustment unit.

2. The automatic film winding device according to claim 1, characterized in that: The tensioning adjustment unit comprises: A plurality of tension adjustment components (100) are distributed alternately up and down on the frame (101); The tension adjustment assembly (100) includes: A support plate (1) is mounted on the frame (101); A support frame (2) is arranged in the direction in which the film passes; A tensioning roller (3) is provided at the end of the support frame (2) and can be in contact with the film; An adjustment frame is arranged on the support plate (1), the upper end of which is connected to the support frame (2) and can drive the support frame (2) to move up and down; One end of the side guide rod (4) is fixedly connected to the support plate (1), and the other end is slidably engaged with the support frame (2).

3. The automatic film winding device according to claim 2, characterized in that: The tension adjustment assembly (100) further includes: Two side guide frames are respectively arranged on both sides of the support plate (1) and guide the tensioning roller (3); The side guide frame includes: An end connecting rod (5), one end of which is fixedly connected to the end of the tensioning roller (3) and the other end of which extends outward; An end sliding member (6) is sleeved on the end connecting rod (5); The end limit guide rail (7) is formed with a vertical slide groove, the end connecting rod (5) extends into the slide groove, and the end sliding member (6) is in rolling engagement with the inner wall of the slide groove.

4. The automatic film winding device according to claim 2, characterized in that: The adjustment frame includes: Two slides (8) are arranged in a straight line, each having a screw, a slide rail, a screw nut and a support plate; A support block (9) is arranged between the two slides (8), and a through hole is formed on the support block (9); A drive motor (10) is provided on one of the slides (8); Two oblique drive rods (11) are distributed in a ∧-shaped or ∨-shaped manner, one end of which is connected to the support plate on the slide (8) on the side where it is located, and the other end is connected to the middle part of the support frame (2); The telescopic receiving mechanism is arranged on the support block (9), and one end is connected to the support block (9), and the other end is connected to the middle part of the support frame (2).

5. The automatic film winding device according to claim 4, characterized in that: The telescopic bearing mechanism includes: An outer support tube (23), one end of which is connected to the support block (9) and the other end of which is disposed toward the support frame (2); An inner telescopic rod (24) is disposed in the outer support tube (23) and extends out of the outer support tube (23), and a driving hole (25) is formed inwardly at one end of the inner telescopic rod (24) facing the outer support tube (23); An outer piston cylinder (26) is arranged at one end of the inner telescopic rod (24) located inside the outer support cylinder (23), and is formed with a sealing portion (27) that slidably cooperates with the outer support cylinder (23) at one end away from the inner telescopic rod (24); an inner chamber (28) formed between the end of the sealing portion (27) of the outer piston cylinder (26) and the bottom of the outer support cylinder (23); An outer chamber (29) is formed between a side of the outer piston cylinder (26) without the sealing portion (27) and a side wall of the outer support cylinder (23); An inner valve stem (30) is disposed in the inner drive hole (25) and extends into the outer piston cylinder (26) and can pass through the outer piston cylinder (26); The displacement of the inner valve stem (30) opens or cuts off the connection between the inner chamber (28) and the outer chamber (29).

6. The automatic film winding device according to claim 5, characterized in that: The telescopic receiving mechanism further comprises: An inner return spring (31) is disposed in the inner drive hole (25), and a sealing section is formed at one end of the inner valve stem (30) located in the inner drive hole (25), and two ends of the inner return spring (31) respectively abut against the outer piston cylinder (26) and the sealing section; A circulation hole (32) is provided on the inner telescopic rod (24) and is in communication with the driving hole (25), and is configured to push the inner valve stem (30) to move by supplying compressed air into the circulation hole (32); An inner valve core (33) is provided with a valve cavity inwardly at one end of the outer piston cylinder (26) away from the inner telescopic rod (24), the inner valve core (33) is arranged in the valve cavity, the inner valve stem (30) passes through the inner valve core (33), and the connection between the inner valve core (33) and the inner chamber (28) is opened or cut off by the displacement of the inner valve stem (30); A side connection hole (34) is formed on the side wall of the outer piston cylinder (26) and connects the inner valve core (33) and the outer chamber (29); The inner valve core (33) is a hollow structure with two ends connected. The outer wall is a regular polygon and is formed with a plurality of liquid holes (35). The liquid holes (35) are connected to the side connection holes (34).

7. A winding method applicable to the automatic film winding device according to any one of claims 1 to 6, characterized in that: Step 1: obtaining a first tension value of the film passing through the feed receiving component (102) through the feed detection component (104), and determining whether the first tension value is within a tension threshold; Step 2: if the first tension value is lower than the tension threshold, one or more tension adjustment components (100) in the tension adjustment unit are controlled to operate to increase the tension value of the film; if the first tension value is within the tension threshold, the current state of the tension adjustment unit is maintained; if the first tension value is greater than the tension threshold, one or more tension adjustment components (100) in the tension adjustment unit are controlled to operate and reset to reduce the tension value of the film; Step three, detecting the second tension value of the film entering the winding receiving component (103) through the winding detection component (105), and determining whether the second tension value is within the tension threshold; Step 4: If the second tension value is lower than the tension threshold, the winding speed of the winding receiving component (103) is increased; if the second tension value is within the tension threshold, the winding speed of the winding receiving component (103) is maintained; if the second tension value is higher than the tension threshold, the winding speed of the winding receiving component (103) is reduced.

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