Winding machine for polypropylene film production

Abstract

The utility model discloses a winding machine for polypropylene film production, which comprises a bottom plate, supports are arranged at two ends of the bottom plate, a winding roller is rotatably connected between the supports on two sides, the winding roller comprises a left support roller, a plurality of extension rollers and a right support roller, the extension rollers are connected between the left support roller and the right support roller, and the extension rollers are connected between the left support roller and the right support roller. One side of the right supporting roller is connected with the driving motor, and the left supporting roller is connected with the left support; an inner cavity of the right supporting roller and an inner cavity of the extension roller are provided with inserting shafts, inner cavities of the inserting shafts are provided with fixing plates, the fixing plates are provided with telescopic rods, the telescopic rods are provided with moving plates, elastic pieces are connected between the moving plates and the fixing plates, the moving plates are movably connected with connecting plates, and the other ends of the connecting plates are movably connected with clamping plates. Clamping grooves are formed in the right sides of the left supporting roller and the extension roller. After the technical scheme is adopted, the length of the winding roller can be adjusted according to the width of a wound film by assembling and disassembling the number of the extension rollers, and the application range of the winding roller is widened.

Description

Technical Field

[0001] This utility model relates to the field of film processing technology, and in particular to a winding machine for polypropylene film production. Background Technology

[0002] Polypropylene is a thermoplastic resin obtained by polymerizing propylene. It is a non-toxic, odorless, and tasteless milky-white, highly crystalline polymer widely used in food, pharmaceutical, and chemical industries, with food packaging accounting for the largest proportion, such as beverage packaging, frozen food packaging, retortable food packaging, and fast food packaging.

[0003] In the production of polypropylene film, a winding machine is typically used to wind the film. However, different products require different film widths, and therefore the required roll widths also vary. Consequently, winding rollers of different lengths need to be customized for different film widths. That is, a winding roller of a certain length is usually only used to wind film of a certain width, making it difficult to adjust according to the actual width of the film being wound, thus limiting the applicability of the winding roller. Utility Model Content

[0004] The purpose of this invention is to provide a winding machine for polypropylene film production to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a winding machine for polypropylene film production, characterized in that: it includes a base plate, and supports are provided at both ends of the top of the base plate. A winding roller is rotatably connected between the two supports. A drive motor for driving the winding roller to rotate is provided on one of the supports. The winding roller includes a left support roller, several extension rollers and a right support roller connected in sequence along the axial direction. Several extension rollers are connected between the left support roller and the right support roller. The side of the right support roller away from the extension roller is connected to the drive motor, and the side of the left support roller away from the extension roller is connected to the left support.

[0006] A shaft is fixedly connected to the inner cavity of the right support roller and the extension roller. A fixed plate is provided on the inner cavity of the shaft. A telescopic rod is provided on one side of the fixed plate. A movable plate is provided on the side of the telescopic rod away from the fixed plate. An elastic element is connected between the movable plate and the fixed plate. A connecting plate is movably connected to one side of the movable plate, and a locking plate is movably connected to the other end of the connecting plate. A locking groove for the locking plate to engage is provided on the top surface of the right side of the left support roller and the extension roller.

[0007] Preferably, the elastic element is a spring, which is sleeved on the outer surface of the telescopic rod.

[0008] Preferably, slots are provided at the right end of the left support roller and the right end of the extension roller, and one end of the insertion shaft extends into the inner cavity of the slot and is movably connected to the inner cavity of the slot.

[0009] Preferably, a placement groove is provided on one side of the slot cavity, and a placement post extending into the placement groove cavity is provided at one end of the insertion shaft, the placement post being movably connected to the placement groove cavity.

[0010] Preferably, a limiting groove is formed on one side of the inner cavity of the insert shaft, and a limiting rod that can slide along the limiting groove is fixedly connected to one side of the movable plate.

[0011] Preferably, a longitudinal groove is provided on one end face of the insert shaft, and a longitudinal slider that can be slidably connected along the longitudinal groove is provided on one side of the card plate.

[0012] Preferably, a protrusion is fixedly connected to the bottom of the insertion shaft, and a sliding groove is provided at the bottom of the inner cavity of the slot. The protrusion extends into the inner cavity of the sliding groove and is slidably connected to the inner cavity of the sliding groove.

[0013] Preferably, it further includes a drive transmission device for moving the right support along the length of the base plate. The drive transmission device includes a lead screw rotatably connected to the base plate. The bottom of the right support is threadedly connected to the lead screw. Two guide grooves are provided on the base plate. Guide blocks that can move along the guide grooves are respectively provided on both sides of the right support. By rotating the lead screw, the right support can move closer to or further away from the left support.

[0014] Preferably, the component driving the lead screw to rotate is a rotating wheel, which is fixedly connected to the end of the lead screw. As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages:

[0015] 1. The present invention provides a winding machine for polypropylene film production. The winding roller is composed of a left support roller, a right support roller and multiple extension rollers spliced ​​together. By loading and unloading the number of extension rollers, the length of the winding roller can be adjusted according to the width of the film being wound, thereby increasing the applicability of the winding roller.

[0016] 2. The present invention provides a winding machine for polypropylene film production. The insertion shaft extends into the inner cavity of the slot. The slot initially compresses the card plate. When the card plate moves to the bottom of the slot, the spring's return force will drive the moving plate and connecting plate to one side. The connecting plate will drive the card plate to move upward, so that the card plate enters the inside of the slot. This realizes the connection between the left support roller, the extension roller and the right support roller. By using a splicing method for connection, it is not only convenient and fast, but also avoids rust or stripping, thus ensuring the stability of the connection. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a winding machine for polypropylene film production according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of an extension roller for a rewinding machine used in polypropylene film production according to the present invention.

[0020] Figure 3 This is a schematic diagram of the left support roller of a winding machine for polypropylene film production according to the present invention.

[0021] Figure 4 This is a cross-sectional view of an insert shaft for polypropylene film production according to the present invention. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Example

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a winding machine for polypropylene film production includes a base plate 11. Supports are provided at both ends of the top of the base plate 11, and a winding roller is rotatably connected between the two supports. A drive motor 3 for driving the winding roller is mounted on one of the supports. The winding roller includes a left support roller 21, several extension rollers 22, and a right support roller 23 connected sequentially along the axial direction. The extension rollers 22 are connected between the left support roller 21 and the right support roller 23. The side of the right support roller 23 away from the extension rollers 22 is connected to the drive motor 3. The side of the left support roller 21 away from the extension rollers 22 is connected to the left support 12. The right support roller 23... An insert shaft 4 is fixedly connected to the inner cavity of the extension roller 22. A fixed plate 41 is provided on the inner cavity of the insert shaft 4. A telescopic rod 42 is provided on one side of the fixed plate 41. A movable plate 43 is provided on the side of the telescopic rod 42 away from the fixed plate 41. An elastic element is connected between the movable plate 43 and the fixed plate 41. A connecting plate 45 is movably connected to one side of the movable plate 43, and a locking plate 46 is movably connected to the other end of the connecting plate 45. A locking groove 46a for the locking plate 46 to engage is provided on the top surface of the right side of both the left support roller 21 and the extension roller 22. The elastic element is a spring 44, which is sleeved on the outer surface of the telescopic rod 42. With this structure, the take-up roller is composed of a left support roller 21, a right support roller 23, and multiple extension rollers 22 spliced ​​together. By loading and unloading the extension rollers 22, the length of the take-up roller can be adjusted according to the width of the film being wound, thus increasing the applicability of the take-up roller.

[0028] like Figure 2 and Figure 3 As shown, slots 51 are provided at the right ends of the left support roller 21 and the extension roller 22. One end of the insertion shaft 4 extends into the inner cavity of the slot 51 and is movably connected to the inner cavity of the slot 51. A placement groove 52 is provided on one side of the inner cavity of the slot 51. A placement post 55 extending into the inner cavity of the placement groove 52 is also provided at one end of the insertion shaft 4. The placement post 55 is movably connected to the inner cavity of the placement groove 52. A protrusion 53 is fixedly connected to the bottom of the insertion shaft 4. A sliding groove 54 is provided at the bottom of the inner cavity of the slot 51. The protrusion 53 extends into the inner cavity of the sliding groove 54 and is slidably connected to the inner cavity of the sliding groove 54. With this structure, by designing the placement groove 52, the placement post 55 enters the interior of the placement groove 52, thereby limiting the placement of the placement post 55. When the left end of the insertion shaft 4 enters the interior of the slot 51, the insertion shaft 4 will drive the protrusion 53 to move along the trajectory of the inner cavity of the sliding groove 54, thereby limiting the insertion shaft 4 and preventing the insertion shaft 4 from being misaligned during movement.

[0029] like Figure 4 As shown, a limiting groove 4a is formed on one side of the inner cavity of the insert shaft 4, and a limiting rod 43a that can slide along the limiting groove 4a is fixedly connected to one side of the moving plate 43; a longitudinal groove is formed on one end face of the insert shaft 4, and a longitudinal slider that can slide along the longitudinal groove is provided on one side of the clamping plate 46. With this structure, the longitudinal slider will slide along the inner cavity of the longitudinal groove during the movement of the clamping plate 46, which not only limits the clamping plate 46, but also ensures the stability of the clamping plate 46 during movement. When the moving plate 43 moves, it will drive the limiting rod 43a to slide in the inner cavity of the limiting groove 4a, thereby preventing the limiting groove 4a from shifting position during movement.

[0030] like Figure 1 As shown, the system also includes a drive transmission device for moving the right-side bracket 13 along the length of the base plate 11. The drive transmission device includes a lead screw 61 rotatably connected to the base plate 11. The bottom of the right-side bracket 13 is threadedly connected to the lead screw 61. Two guide grooves 62 are provided on the base plate 11, and guide blocks movable along the guide grooves 62 are respectively provided on both sides of the right-side bracket 13. Rotating the lead screw 61 allows the right-side bracket 13 to move closer to or further away from the left-side bracket 12. The component driving the lead screw 61 to rotate is a rotating wheel 63, which is fixedly connected to the end of the lead screw 61. With this structure, when the right-side bracket 13 needs to be moved towards the left-side bracket 12, rotating the rotating wheel 63 clockwise causes the lead screw 61 connected to it to rotate clockwise, allowing the right-side bracket 13 to move towards the left-side bracket 12; rotating the rotating wheel 63 counterclockwise causes the lead screw 61 connected to it to rotate counterclockwise, allowing the right-side bracket 13 to move away from the left-side bracket 12.

[0031] When a wider film needs to be wound, first press the clamping plate 46. The clamping plate 46 moves downward under force, causing it to disengage from the inner cavity of the clamping slot 46a. At the same time, rotate the rotating wheel 63, causing the right support 13 to move away from the left support 12, which pulls the right support roller 23. The right support roller 23 will drive the clamping plate 46 and the insert shaft 4 to disengage from the inner cavity of the extension roller 22. Then, insert the new extension roller 22 into the extended position and fix it. During this process, as the new extension roller 22 moves, it drives the insert shaft 4 into the inner cavity of the slot 51. The slot 51 performs initial extrusion on the clamping plate 46. The pressure causes the clamping plate 46 to move the connecting plate 45, the moving plate 43, and the spring 44 to one side. The spring 44 will be compressed and deformed until the clamping plate 46 moves to the bottom of the slot 46a. The clamping plate 46 loses the squeezing force, and then the restoring force of the spring 44 will drive the moving plate 43 and the connecting plate 45 to one side. The connecting plate 45 drives the clamping plate 46 to move upward, so that the clamping plate 46 enters the interior of the slot 46a, thereby enabling the take-up roller to take up films with a wider width; and vice versa. By using a splicing method for connection, it is not only convenient and fast, but also effectively ensures the stability of the connection.

[0032] The above description is only a preferred embodiment of the present utility model and is 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 winding machine for polypropylene film production, characterized in that: The device includes a base plate, with supports at both ends of the top of the base plate. A take-up roller is rotatably connected between the two supports. A drive motor for driving the take-up roller is mounted on one of the supports. The take-up roller includes a left support roller, several extension rollers, and a right support roller connected sequentially along the axial direction. Several extension rollers are connected between the left support roller and the right support roller. The side of the right support roller away from the extension roller is connected to the drive motor, and the side of the left support roller away from the extension roller is connected to the left support. A shaft is fixedly connected to the inner cavity of the right support roller and the extension roller. A fixed plate is provided on the inner cavity of the shaft. A telescopic rod is provided on one side of the fixed plate. A movable plate is provided on the side of the telescopic rod away from the fixed plate. An elastic element is connected between the movable plate and the fixed plate. A connecting plate is movably connected to one side of the movable plate, and a locking plate is movably connected to the other end of the connecting plate. A locking groove for the locking plate to engage is provided on the top surface of the right side of the left support roller and the extension roller.

2. A winding machine for polypropylene film production according to claim 1, characterized in that: The elastic element is a spring, which is sleeved on the outer surface of the telescopic rod.

3. A winding machine for polypropylene film production according to claim 1, characterized in that: The right end of the left support roller and the right end of the extension roller are both provided with slots, and one end of the insertion shaft extends into the inner cavity of the slot and is movably connected to the inner cavity of the slot.

4. A winding machine for polypropylene film production according to claim 3, characterized in that: A placement groove is provided on one side of the inner cavity of the slot, and a placement post extending into the inner cavity of the placement groove is provided at one end of the insertion shaft. The placement post is movably connected to the inner cavity of the placement groove.

5. A winding machine for polypropylene film production according to claim 1, characterized in that: A limiting groove is provided on one side of the inner cavity of the insert shaft, and a limiting rod that can slide along the limiting groove is fixedly connected to one side of the movable plate.

6. A winding machine for polypropylene film production according to claim 1, characterized in that: A longitudinal groove is provided on one end face of the insert shaft, and a longitudinal slider that can slide along the longitudinal groove is provided on one side of the card plate.

7. A winding machine for polypropylene film production according to claim 3, characterized in that: A protrusion is fixedly connected to the bottom of the insertion shaft, and a sliding groove is provided at the bottom of the inner cavity of the slot. The protrusion extends into the inner cavity of the sliding groove and is slidably connected to the inner cavity of the sliding groove.

8. A winding machine for polypropylene film production according to claim 1, characterized in that: It also includes a drive transmission device for moving the right side bracket along the length of the base plate. The drive transmission device includes a lead screw rotatably connected to the base plate. The bottom of the right side bracket is threadedly connected to the lead screw. Two guide grooves are provided on the base plate. Guide blocks that can move along the guide grooves are respectively provided on both sides of the right side bracket. By rotating the lead screw, the right side bracket can move towards or away from the left side bracket.

9. A winding machine for polypropylene film production according to claim 8, characterized in that: The component that drives the lead screw to rotate is a rotating wheel, which is fixedly connected to the end of the lead screw.

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