Tension control device for PVB film production

Abstract

The utility model relates to PVB film production equipment technical field, specifically disclose a kind of tension control device for PVB film production, including base, base includes bearing plate, the inside of bearing plate is provided with multiple linear array distribution's limit slot, the both sides of limit slot are provided with limit hole, material guiding component and winding component between are provided with multiple linear array distribution's tension mechanism, tension mechanism includes support plate, the lower end of support plate is provided with gyro wheel, the end of support plate below far from gyro wheel is symmetrically connected with two limit rods, the middle part of support plate is connected with telescopic link, the telescopic end of telescopic link is connected with bottom plate, the upper end of bottom plate is connected with vertical plate, the side of two vertical plates mutually close is provided with baffle, two vertical plates between are rotatably connected with two tension rollers, the position of PVB film can be limited from the both sides of PVB film in the process that PVB film moves, avoid PVB film to slide outside the limit roller, guarantee the quality of PVB film winding.

Description

Technical Field

[0001] This utility model relates to the technical field of PVB film production equipment, and specifically discloses a tension control device for PVB film production. Background Technology

[0002] PVB film (polyvinyl butyral film) is a thermoplastic resin film formed by the condensation of polyvinyl alcohol (PVA) and butyral under the action of an acidic catalyst. It has high transparency, strong adhesion and excellent mechanical properties, and is the core material of laminated glass. During the winding process of PVB film, a tension control device is required to control the tension of the PVB film, avoid wrinkles in the PVB film during winding, and ensure the quality of PVB film winding.

[0003] Chinese patent CN216376828U discloses a tension control device for PVB film production, including a work platform, a material guiding assembly, a first tensioning assembly, a second tensioning assembly, a third tensioning assembly, and a winding assembly. Three hollow grooves are formed on the surface of the work platform corresponding to the middle of the material guiding assembly and the winding assembly. A plate is fixedly installed below the bottom of the work platform, and three lifting adjustment cylinders are installed on the plate. The drive shaft of each lifting adjustment cylinder corresponds to a hollow groove and is connected to a lifting support plate. The first tensioning assembly, the second tensioning assembly, and the third tensioning assembly are sequentially arranged on the three lifting support plates. The utility model features three lifting and adjusting cylinders that can respectively drive the lifting support plate to adjust the tension of the wound PVB film using the first, second, and third tensioning components. This ensures the winding quality of the winding assembly and improves work efficiency, making it highly valuable. However, the aforementioned device cannot restrict the position of the PVB film from both sides during use, which can easily lead to the PVB film sliding on the tension rollers, affecting the quality of the winding assembly. Therefore, to solve the above problems, this utility model proposes a tension control device for PVB film production. Utility Model Content

[0004] The present invention aims to provide a tension control device for PVB film production, which can restrict the position of PVB film from both sides during the movement of PVB film, prevent PVB film from sliding on the outside of the limiting roller, and ensure the quality of PVB film winding.

[0005] This utility model is achieved through the following technical solution: A tension control device for PVB film production includes a base, which includes a support plate. A material guiding assembly and a winding assembly are respectively disposed at the upper two ends of the support plate. The support plate has multiple linearly arrayed limiting grooves inside, with limiting holes on both sides of each limiting groove. Multiple linearly arrayed tensioning mechanisms are disposed between the material guiding assembly and the winding assembly. Each tensioning mechanism includes a support plate. A roller is disposed at one lower end of the support plate. Two limiting rods are symmetrically connected to the lower end of the support plate away from the roller. A telescopic rod is connected to the middle of the support plate. A base plate is connected to the telescopic end of the telescopic rod. Vertical plates are connected to both upper ends of the base plate. Baffles are disposed on the sides of the two vertical plates that are close to each other. Two tensioning rollers are rotatably connected between the two vertical plates.

[0006] As a further feature of the above solution, the limiting rod passes through the interior of the limiting hole and is slidably connected to the limiting hole, which can restrict the movement direction of the support plate and its connecting parts. A connecting shaft is provided at one end of the limiting hole, and two connecting holes are symmetrically provided at the end of the support plate away from the limiting rod. The connecting shaft passes through the interior of the connecting hole, and a nut is threaded on the outside of the connecting shaft, which can restrict the position of the tensioning mechanism and keep the tensioning mechanism stable during use.

[0007] As a further feature of the above solution, multiple first support legs are connected to both ends of the lower part of the bearing plate and the side away from the roller, and a second support leg is connected to the upper part of the roller. The upper end of the second support leg is connected to the support plate, which can provide stable support for the base, the components above it, and the tensioning mechanism.

[0008] As a further feature of the above solution, the baffle has a pre-drilled hole inside, and the tension roller passes through the pre-drilled hole to avoid positional conflict between the baffle and the tension roller and ensure smooth rotation of the tension roller. A lead screw is rotatably connected to the upper center of the baffle, and a support seat is provided at the upper center of the upright plate. The lead screw passes through the support seat and is threadedly connected to the support seat, so that the distance between the two baffles can be adjusted by rotating the lead screw, thereby restricting the position of the PVB film from both sides of the PVB film.

[0009] As a further feature of the above solution, connecting plates are provided at both ends of the upper part of the support base. A support rod is connected inside the connecting plate. A scale plate is provided at the upper end of the support rod, which allows the user to accurately adjust the position of the baffle by referring to the scale plate. Sliding sleeves are provided on both sides of the upper end of the baffle. The support rod passes through the inside of the sliding sleeve and is slidably connected to the sliding sleeve, which enables the support rod to provide stable support for the baffle and restrict the movement direction of the baffle.

[0010] As a further feature of the above solution, a controller is provided on one side of the base, and multiple telescopic rods are connected to the controller via power cords and signal lines, allowing users to independently control the extension and retraction of multiple telescopic rods in sequence.

[0011] The present invention has the following beneficial effects during use: 1. The design of multiple limiting grooves inside the bearing plate can avoid conflict between the bearing plate and the telescopic rod. The combination of the second support leg, roller and limiting rod under the support plate can provide support for the support plate and its connecting parts during the sliding of the limiting rod in the limiting hole. This allows the tensioning mechanism to be pulled out a certain distance from the inside of the bearing plate when adjusting the position of the baffle, so that the user can easily observe the scale on the scale plate. The combination of connecting shaft, connecting hole and nut can limit the position of the tensioning mechanism and keep the tensioning mechanism stable during use.

[0012] 2. The combination of support base, lead screw and baffle can adjust the distance between the two baffles by rotating the lead screw, so that the two baffles restrict the position of the PVB film from both sides. The combination of support rod and scale plate can provide stable support for the baffle and restrict the direction of movement of the baffle, so that the user can accurately adjust the position of the baffle by referring to the scale on the scale plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the base in this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of the combination of the support plate and the limiting rod in this utility model; Figure 5 This is a perspective view of the assembly of components such as the telescopic rod, base plate, and upright plate in this utility model; Figure 6 This is a perspective view of the combination of support rod, baffle and lead screw in this utility model.

[0015] In the diagram: 1. Base; 2. Material guide assembly; 3. Winding assembly; 4. Tensioning mechanism; 5. Controller; 11. Bearing plate; 111. Limiting hole; 112. Connecting shaft; 113. Nut; 114. Limiting groove; 12. First support leg; 41. Support plate; 411. Connecting hole; 412. Limiting rod; 42. Second support leg; 421. Roller; 43. Telescopic rod; 44. Base plate; 45. Vertical plate; 451. Support seat; 452. Connecting plate; 46. Tensioning roller; 47. Support rod; 471. Scale plate; 48. Baffle; 481. Sliding sleeve; 482. Reserved hole; 49. Lead screw. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-6 This application will be described in detail with reference to the embodiments.

[0018] For details on the specific structure and usage of the material guiding component 2 and the winding component 3 in this utility model, please refer to the specific structure and usage of the material guiding component 2 and the winding component 3 in Chinese patent with patent number CN216376828U and title "A Tension Control Device for PVB Film Production".

[0019] An embodiment discloses a tension control device for PVB film production, including a base 1, the base 1 including a support plate 11, a material guide assembly 2 and a winding assembly 3 respectively provided at the upper two ends of the support plate 11, a plurality of linearly arrayed limiting grooves 114 provided inside the support plate 11, and limiting holes 111 provided on both sides of the limiting grooves 114, a plurality of linearly arrayed tensioning mechanisms 4 provided between the material guide assembly 2 and the winding assembly 3, the tensioning mechanism 4 including a support plate 41, a roller 421 provided at one lower end of the support plate 41, two limiting rods 412 symmetrically connected at the lower end of the support plate 41 away from the roller 421, a telescopic rod 43 connected to the middle of the support plate 41, a base plate 44 connected to the telescopic end of the telescopic rod 43, and upright plates 45 connected to both upper ends of the base plate 44, a baffle 48 provided on the side of the two upright plates 45 that are close to each other, and two tensioning rollers 46 rotatably connected between the two upright plates 45.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the limiting rod 412 passes through the interior of the limiting hole 111 and is slidably connected to the limiting hole 111, which can limit the movement direction of the support plate 41 and its connecting parts. A connecting shaft 112 is provided at one end of the limiting hole 111. Two connecting holes 411 are symmetrically provided at the end of the support plate 41 away from the limiting rod 412. The connecting shaft 112 passes through the interior of the connecting hole 411. A nut 113 is threadedly connected to the outer side of the connecting shaft 112, which can limit the position of the tensioning mechanism 4 and keep the tensioning mechanism 4 stable during use.

[0021] like Figure 1 , Figure 2 and Figure 4 As shown, multiple first support legs 12 are connected to both the lower ends of the bearing plate 11 and the side away from the roller 421. A second support leg 42 is connected to the upper part of the roller 421. The upper end of the second support leg 42 is connected to the support plate 41, which can provide stable support for the base 1, the components above it, and the tensioning mechanism 4.

[0022] like Figure 1 , Figure 5 and Figure 6 As shown, the baffle 48 has a reserved hole 482 inside, and the tension roller 46 passes through the reserved hole 482. This can avoid positional conflict between the baffle 48 and the tension roller 46 and ensure that the tension roller 46 rotates smoothly. A lead screw 49 is rotatably connected to the upper middle part of the baffle 48. A support base 451 is provided at the upper middle part of the vertical plate 45. The lead screw 49 passes through the interior of the support base 451 and is threadedly connected to the support base 451. The distance between the two baffles 48 can be adjusted by rotating the lead screw 49, so that the two baffles 48 restrict the position of the PVB film from both sides of the PVB film.

[0023] like Figure 1 , Figure 5 and Figure 6 As shown, connecting plates 452 are provided at both ends of the upper part of the support base 451. A support rod 47 is connected inside the connecting plate 452. A scale plate 471 is provided at the upper end of the support rod 47, which allows the user to accurately adjust the position of the baffle 48 by referring to the scale on the scale plate 471. Sliding sleeves 481 are provided on both sides of the upper end of the baffle 48. The support rod 47 passes through the interior of the sliding sleeve 481 and is slidably connected to the sliding sleeve 481, which enables the support rod 47 to provide stable support for the baffle 48 and restrict the movement direction of the baffle 48.

[0024] like Figure 1 and Figure 2As shown, a controller 5 is provided on one side of the base 1, and multiple telescopic rods 43 are connected to the controller 5 through power lines and signal lines, so that users can control the extension and retraction of multiple telescopic rods 43 in turn.

[0025] The tension control device for PVB film production disclosed in this embodiment, before use, uses a tool to unscrew the two nuts 113 at one end of the same support plate 41, releasing the fixation on the support plate 41. The support plate 41 is then pulled, causing the limiting rod 412 to slide in the limiting hole 111, causing the roller 421 to roll on the ground, separating the telescopic rod 43 from the limiting groove 114. After pulling the tensioning mechanism 4 a certain distance from the inside of the bearing plate 11, according to the width of the PVB film and referring to the scale on the scale plate 471, the two lead screws 49 in the same tensioning mechanism 4 are rotated sequentially, causing the sliding sleeve 481 to move along the support rod. Slide the outer side of 47 to adjust the position of baffle 48. After adjustment, push the tensioning mechanism 4 back to the inner side of the bearing plate 11 so that the connecting shaft 112 is inserted into the connecting hole 411. Tighten the nut 113 on the outer side of the connecting shaft 112 to fix the tensioning mechanism 4. Refer to the scale on the scale plate 471 corresponding to the baffle 48 in the tensioning mechanism 4 after adjustment, and repeat the above operation of adjusting the position of the tensioning mechanism 4 and the position of the baffle 48. Adjust the position of the remaining baffle 48 in the tensioning mechanism 4, push the tensioning mechanism 4 back to the inner side of the bearing plate 11 and fix it with the nut 113.

[0026] After fixing, one end of the PVB film is passed sequentially between the two tension rollers 46 in the guide assembly 2 and the tensioning mechanism 4 and connected to the winding assembly 3. At this time, the two sides of the PVB film located inside the tensioning mechanism 4 are connected to the two baffles 48 respectively. The winding assembly 3 can be started to wind up the PVB film. During the winding process, the controller 5 is used to control the extension and retraction of the telescopic rods 43 in each tensioning mechanism 4 in sequence, so that the telescopic rods 43 drive the bottom plate 44, the upright plate 45 and the tension rollers 46 to move up and down, thereby tensioning the PVB film and adjusting the degree of tension of the PVB film.

[0027] The components disclosed in this utility model for a tension control device for PVB film production, including the material guide assembly 2, winding assembly 3, controller 5, bearing plate 11, connecting shaft 112, nut 113, first support leg 12, support plate 41, limiting rod 412, second support leg 42, roller 421, telescopic rod 43, base plate 44, upright plate 45, tension roller 46, support rod 47, scale plate 471, baffle 48, and lead screw 49, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tension control device for PVB film production, comprising a base, the base including a support plate, and a material guiding assembly and a winding assembly respectively disposed at the upper two ends of the support plate, characterized in that, The bearing plate has multiple limiting grooves arranged in a linear array inside, and limiting holes are provided on both sides of each limiting groove. Multiple tensioning mechanisms arranged in a linear array are provided between the material guiding assembly and the winding assembly. Each tensioning mechanism includes a support plate, a roller is provided at one lower end of the support plate, and two limiting rods are symmetrically connected to the lower end of the support plate away from the roller. A telescopic rod is connected to the middle of the support plate, and a base plate is connected to the telescopic end of the telescopic rod. Vertical plates are connected to both upper ends of the base plate. A baffle is provided on the side of the two vertical plates that are close to each other. Two tensioning rollers are rotatably connected between the two vertical plates.

2. The tension control device for PVB film production according to claim 1, characterized in that, The limiting rod passes through the interior of the limiting hole and is slidably connected to the limiting hole. A connecting shaft is provided at one end of the limiting hole. Two connecting holes are symmetrically provided at the end of the support plate away from the limiting rod. The connecting shaft passes through the interior of the connecting hole, and a nut is threaded onto the outer side of the connecting shaft.

3. The tension control device for PVB film production according to claim 1, characterized in that, Multiple first support legs are connected to both ends of the lower part of the bearing plate and to the side away from the roller. A second support leg is connected to the upper part of the roller, and the upper end of the support leg is connected to the support plate.

4. The tension control device for PVB film production according to claim 1, characterized in that, The baffle has a pre-drilled hole inside, the tensioning roller passes through the pre-drilled hole, a lead screw is rotatably connected to the upper middle part of the baffle, a support seat is provided at the upper middle part of the vertical plate, and the lead screw passes through the support seat and is threadedly connected to the support seat.

5. The tension control device for PVB film production according to claim 4, characterized in that, The support base has connecting plates at both ends above, and a support rod is connected inside the connecting plate. A scale plate is provided at the upper end of the support rod. Sliding sleeves are provided on both sides of the upper end of the baffle. The support rod passes through the inside of the sliding sleeve and is slidably connected to the sliding sleeve.

6. The tension control device for PVB film production according to claim 1, characterized in that, A controller is provided on one side of the base.

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