Polyethylene film stretching device

Abstract

The utility model relates to the technical field of stretching devices, in particular to a polyethylene film stretching device which comprises a bottom plate and a stretching assembly, and the stretching assembly comprises two supporting parts, a stretching roller, a first motor, a guide rail, two sliding blocks, a bidirectional threaded lead screw, two telescopic parts, two guide rings and a driving part. During use, the multiple polyethylene film stretching devices are arranged, a polyethylene film to be stretched is pulled to stretching rollers of the multiple polyethylene film stretching devices, the driving component drives the stretching rollers to rotate, the stretching rollers convey the polyethylene film, and the polyethylene film can be stretched and formed; the polyethylene film is located between the two guide rings, limiting and guiding can be provided through the two guide rings when the polyethylene film is stretched, the polyethylene film is prevented from deviating on the stretching roller, and the phenomenon that the drawing effect of the polyethylene film is affected due to deviation of the polyethylene film is avoided.

Description

Technical Field

[0001] This utility model relates to the field of stretching device technology, and in particular to a polyethylene film stretching device. Background Technology

[0002] Polyethylene film needs to be stretched during production, and stretching rollers are required for stretching polyethylene film. However, the stretching rollers of traditional stretching devices are inconvenient to replace and have low replacement efficiency.

[0003] The existing technology CN215557659U discloses a polyethylene film stretching device, including a support frame. A motor is fixedly connected to one side of the support frame, a connecting plate is fixedly connected to one side of the motor, and a locking block is fixedly connected to the side of the connecting plate away from the motor. A first connecting block is slidably connected to the outer surface of the locking block, and a stretching roller is fixedly connected to one side of the first connecting block. Through the cooperative arrangement of the locking block, the first connecting block, the stretching roller, the second connecting block, the fixed column, the lead screw, the moving plate, the rotating block, the spring, and the clamping plate, pulling the clamping plate away from the fixed column, rotating the knob, the moving plate moves the rotating block away from the second connecting block, and the sliding stretching roller moves the first connecting block away from the locking block. A new stretching roller can be installed. Rotating the knob in the opposite direction moves the moving plate closer to the second connecting block, and the clamping plate is fitted onto the fixed column, facilitating the replacement of the stretching roller and improving replacement efficiency.

[0004] However, when the polyethylene film is stretched along the stretching roller using the above method, it is impossible to guide both sides of the polyethylene film. The polyethylene film is prone to deviation when moving on the stretching roller, which affects the stretching effect of the polyethylene film. Utility Model Content

[0005] The purpose of this invention is to provide a polyethylene film stretching device, which aims to solve the problem that existing polyethylene film stretching devices cannot guide both sides of the polyethylene film, causing the polyethylene film to easily deviate when moving on the stretching roller, thereby affecting the stretching effect of the polyethylene film.

[0006] To achieve the above objectives, this utility model provides a polyethylene film stretching device, including a base plate and a stretching assembly. The stretching assembly includes two support components, a stretching roller, a first motor, a guide rail, two sliders, a bidirectional threaded screw, two telescopic components, two guide rings, and a driving component.

[0007] Two support components are respectively disposed on the top sides of the base plate; the stretching roller is disposed between the two support components; the first motor is disposed on the side of the support component; the guide rail is fixedly connected to the base plate and is located on the top of the base plate; two sliders are slidably connected to the guide rail and are respectively located on the side of the guide rail; the bidirectional threaded screw is threadedly connected to the two sliders and fixedly connected to the output end of the first motor and is located on the side of the first motor; two telescopic members are respectively disposed on the top of the two sliders; two guide rings are respectively disposed on the top of the two telescopic members; the driving component is disposed on the side of the stretching roller.

[0008] The supporting component includes a base, a hydraulic cylinder, and a mounting base; the base is fixedly connected to the base plate and rotatably connected to the bidirectional threaded screw, and is located on top of the base plate; the hydraulic cylinder is fixedly connected to the base and is located on top of the base; the mounting base is fixedly connected to the output rod of the hydraulic cylinder and rotatably connected to the stretching roller, and is located on top of the hydraulic cylinder.

[0009] The supporting component further includes multiple guide rods; the multiple guide rods are respectively fixedly connected to the base and slidably connected to the mounting seat, and are respectively located on the top of the base.

[0010] The telescopic component includes a hollow column and a sliding column; the hollow column is fixedly connected to the slider and is located at the top of the slider; the sliding column is slidably connected to the hollow column and fixedly connected to the guide ring, and is located between the hollow column and the guide ring.

[0011] The driving component includes a support and a second motor; the support and the mounting base are fixedly connected and located on the side of the mounting base; the second motor and the support are fixedly connected, and the output end of the second motor is fixedly connected to the stretching roller and located on the side of the support.

[0012] This utility model discloses a polyethylene film stretching device. In use, multiple polyethylene film stretching devices are arranged to pull the polyethylene film to be stretched onto the stretching rollers of these devices. A driving component drives the stretching rollers to rotate, and the stretching rollers convey the polyethylene film, allowing it to be stretched and shaped. The polyethylene film is positioned between two guide rings, which provide limiting and guidance during the stretching process. A bidirectional threaded screw has external threads with opposite directions at both ends. Two sliders are located at the opposite ends of the bidirectional threaded screw. A guide rail guides the sliders and restricts their rotation. The bidirectional threaded screw is driven by a first motor. When the bidirectional threaded screw rotates in either forward or reverse direction, the two sliders slide along the guide rail in directions that are closer to or further apart from each other. The sliders, via the telescopic component, drive the guide rings to move, thereby allowing the spacing between the two guide rings to be adjusted according to the width of the polyethylene film, thus broadening its applicability. This invention, by setting two guide rings, provides limiting and guiding during the stretching of the polyethylene film, preventing the polyethylene film from shifting on the stretching roller and avoiding the impact on the stretching effect of the polyethylene film due to shifting. It solves the problem that existing polyethylene film stretching devices cannot guide both sides of the polyethylene film, causing the polyethylene film to easily shift when moving on the stretching roller, thereby affecting the stretching effect of the polyethylene film. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a structural schematic diagram of the entire utility model from another perspective.

[0016] Figure 3 This is a front sectional view of the entire utility model.

[0017] Figure 4 This is a side sectional view of the entire utility model.

[0018] 101-Base plate, 102-Supporting component, 103-Tension roller, 104-First motor, 105-Guide rail, 106-Slider, 107-Double threaded screw, 108-Telescopic component, 109-Guide ring, 110-Drive component, 111-Base, 112-Hydraulic cylinder, 113-Mounting seat, 114-Guide rod, 115-Hollow column, 116-Sliding column, 117-Support, 118-Second motor. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a structural schematic diagram of the entire utility model from another perspective. Figure 3 This is a front sectional view of the entire utility model. Figure 4 This is a side sectional view of the entire utility model.

[0021] This utility model provides a polyethylene film stretching device, including a base plate 101 and a stretching assembly. The stretching assembly includes two support components 102, a stretching roller 103, a first motor 104, a guide rail 105, two sliders 106, a bidirectional threaded screw 107, two telescopic components 108, two guide rings 109, and a driving component 110. The support component 102 includes a base 111, a hydraulic cylinder 112, a mounting base 113, and multiple guide rods 114. The telescopic component 108 includes a hollow column 115 and a sliding column 116. The driving component 110 includes a support 117 and a second motor 118. The aforementioned solution solves the problem that existing polyethylene film stretching devices cannot guide both sides of the polyethylene film, causing the polyethylene film to easily deviate when moving on the stretching roller 103, thus affecting the stretching effect of the polyethylene film.

[0022] In this specific embodiment, two support components 102 are respectively disposed on the top sides of the base plate 101; the stretching roller 103 is disposed between the two support components 102; the first motor 104 is disposed on the side of the support component 102; the guide rail 105 is fixedly connected to the base plate 101 and is located on the top of the base plate 101; two sliders 106 are slidably connected to the guide rail 105 and are respectively located on the side of the guide rail 105; the bidirectional threaded screw 107 is threadedly connected to the two sliders 106 and fixedly connected to the output end of the first motor 104 and is located on the side of the first motor 104; two telescopic members 108 are respectively disposed on the top of the two sliders 106; two guide rings 109 are respectively disposed on the top of the two telescopic members 108; and the driving component 110 is disposed on the side of the stretching roller 103. In use, multiple polyethylene film stretching devices are set up to pull the polyethylene film to be stretched onto the stretching rollers 103 of the multiple polyethylene film stretching devices. The driving component 110 drives the stretching rollers 103 to rotate, and the stretching rollers 103 convey the polyethylene film, so that the polyethylene film can be stretched and shaped. The polyethylene film is between the two guide rings 109, which can provide limiting and guidance during the stretching of the polyethylene film. The two ends of the bidirectional threaded screw 107 have external threads with opposite thread directions. The two sliders 106 are located at the two ends of the bidirectional threaded screw 107 with opposite thread directions. The guide rail 105 provides guidance for the sliders 106 and restricts the rotation of the sliders 106. The first motor 104 is controlled to drive the bidirectional threaded screw 107 to rotate forward or backward. Reversing the rotation of the bidirectional threaded screw 107 causes the two sliders 106 to slide along the guide rail 105 in a direction that moves closer to or further away from each other. The sliders 106 drive the guide rings 109 to move via the telescopic member 108, thereby adjusting the distance between the two guide rings 109 according to the width of the polyethylene film, thus expanding its applicability. This utility model provides limiting and guiding functions during polyethylene film stretching by setting two guide rings 109, preventing the polyethylene film from shifting on the stretching roller 103 and avoiding the impact of polyethylene film shifting on the stretching effect. This solves the problem that existing polyethylene film stretching devices cannot guide both sides of the polyethylene film, causing the polyethylene film to easily shift when moving on the stretching roller 103, thus affecting the stretching effect of the polyethylene film.

[0023] The base 111 is fixedly connected to the base plate 101 and rotatably connected to the bidirectional threaded screw 107, and is located on top of the base plate 101. The hydraulic cylinder 112 is fixedly connected to the base 111 and is located on top of the base 111. The mounting seat 113 is fixedly connected to the output rod of the hydraulic cylinder 112 and rotatably connected to the stretching roller 103, and is located on top of the hydraulic cylinder 112. The base 111 supports the bidirectional threaded screw 107, and the mounting seat 113 supports the stretching roller 103. The hydraulic cylinder 112 can drive the mounting seat 113 to move longitudinally, and the mounting seat 113 drives the stretching roller 103 to move longitudinally, thereby allowing the height position of the stretching roller 103 to be adjusted as needed, so that the polyethylene film maintains sufficient tension during stretching.

[0024] Secondly, the plurality of guide rods 114 are respectively fixedly connected to the base 111 and slidably connected to the mounting base 113, and are respectively located on the top of the base 111. The mounting base 113 has slots that are adapted to the guide rods 114. The guide rods 114 can provide guidance for the mounting base 113 when the hydraulic cylinder 112 drives the mounting base 113 to move longitudinally, thereby preventing the mounting base 113 from shifting.

[0025] Meanwhile, the hollow column 115 is fixedly connected to the slider 106 and is located at the top of the slider 106; the sliding column 116 is slidably connected to the hollow column 115 and fixedly connected to the guide ring 109, and is located between the hollow column 115 and the guide ring 109. The hollow column 115 has a groove inside that matches the sliding column 116. When the stretching roller 103 moves longitudinally, the sliding column 116 slides along the hollow column 115, avoiding interference with the movement of the stretching roller 103.

[0026] Additionally, the support 117 is fixedly connected to the mounting base 113 and is located on the side of the mounting base 113; the second motor 118 is fixedly connected to the support 117, and the output end of the second motor 118 is fixedly connected to the stretching roller 103 and is located on the side of the support 117. The support 117 is used to support the second motor 118, which can drive the stretching roller 103 to rotate.

[0027] In using this invention, multiple polyethylene film stretching devices are used to pull the polyethylene film to be stretched onto the stretching rollers 103 of the multiple polyethylene film stretching devices. The second motor 118 drives the stretching rollers 103 to rotate, and the stretching rollers 103 convey the polyethylene film, enabling the polyethylene film to be stretched and shaped. The polyethylene film is positioned between two guide rings 109, which provide limiting and guiding during the stretching of the polyethylene film. By controlling the first motor 104 to drive the bidirectional threaded screw 107 to rotate forward or backward, the rotation of the bidirectional threaded screw 107 causes the two sliders 106 to move closer to each other along the guide rail 105. The slider 106 can slide in a direction away from each other. The guide ring 109 is moved by the telescopic member 108, thereby adjusting the distance between the two guide rings 109 according to the width of the polyethylene film, thus expanding its applicability. By setting two guide rings 109, this utility model can provide limiting and guiding during the stretching of the polyethylene film, preventing the polyethylene film from shifting on the stretching roller 103. This avoids affecting the stretching effect of the polyethylene film due to the shift of the polyethylene film, and solves the problem that existing polyethylene film stretching devices cannot guide both sides of the polyethylene film, causing the polyethylene film to easily shift when moving on the stretching roller 103, thus affecting the stretching effect of the polyethylene film.

[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A polyethylene film stretching device, comprising a base plate, characterized in that, It also includes stretching components; The stretching assembly includes two support components, a stretching roller, a first motor, a guide rail, two sliders, a bidirectional threaded screw, two telescopic components, two guide rings, and a drive component; The two support components are respectively disposed on the top sides of the base plate; the stretching roller is disposed between the two support components; the first motor is disposed on the side of the support component; The guide rail and the base plate are fixedly connected and located on the top of the base plate; the two sliders are slidably connected to the guide rail and are located on the side of the guide rail; the bidirectional threaded screw is threadedly connected to the two sliders and fixedly connected to the output end of the first motor and is located on the side of the first motor; the two telescopic members are respectively disposed on the top of the two sliders; the two guide rings are respectively disposed on the top of the two telescopic members; the driving component is disposed on the side of the stretching roller.

2. The polyethylene film stretching device as described in claim 1, characterized in that, The support component includes a base, a hydraulic cylinder, and a mounting base; the base is fixedly connected to the base plate and rotatably connected to the bidirectional threaded screw, and is located on top of the base plate; the hydraulic cylinder is fixedly connected to the base and is located on top of the base; the mounting base is fixedly connected to the output rod of the hydraulic cylinder and rotatably connected to the stretching roller, and is located on top of the hydraulic cylinder.

3. The polyethylene film stretching device as described in claim 2, characterized in that, The support component also includes multiple guide rods; the multiple guide rods are respectively fixedly connected to the base and slidably connected to the mounting seat, and are respectively located on the top of the base.

4. The polyethylene film stretching device as described in claim 3, characterized in that, The telescopic component includes a hollow column and a sliding column; the hollow column is fixedly connected to the slider and is located at the top of the slider; the sliding column is slidably connected to the hollow column and fixedly connected to the guide ring, and is located between the hollow column and the guide ring.

5. A polyethylene film stretching device as described in claim 4, characterized in that, The driving component includes a support and a second motor; the support and the mounting base are fixedly connected and located on the side of the mounting base; the second motor and the support are fixedly connected, and the output end of the second motor is fixedly connected to the stretching roller and located on the side of the support.

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