Winding film positioning and cutting device

Abstract

The utility model is suitable for the technical field of wrapping films, and provides a wrapping film positioning and cutting device which comprises a base, first supporting plates, second supporting plates and a third supporting plate are symmetrically arranged above the base, two sets of pressing rollers are arranged between the two sets of first supporting plates up and down, and a cutting mechanism is arranged between the two sets of second supporting plates. A winding roller is arranged between the two third supporting plates, and a motor is arranged at one end of the winding roller. The cutting mechanism comprises a lower seat and an upper seat; the lower seat is arranged below the position between the two second supporting plates and located on the base; the upper seat is arranged above the position between the two second supporting plates; the telescopic air cylinder penetrates through the upper base and is located on the top face of the upper base, the cutter is connected with the output end of the telescopic air cylinder and is located between the two sets of second supporting plates, a cutter groove is formed in the top of the lower base, a limiting assembly is arranged in the lower base, and therefore the cutting precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch films, in particular to a stretch film positioning and cutting device. Background Art

[0002] Stretch film, also known as stretch film or heat shrink film, was first produced in China using PVC as the base material and DOA as the plasticizer, which also acts as a self-adhesive agent. Early LLDPE stretch film was mostly blown film, evolving from single-layer to two-layer and three-layer. Cast film was primarily produced because cast film offers advantages such as uniform thickness and high transparency, making it suitable for high-ratio pre-stretching requirements. Since single-layer cast film cannot achieve single-sided adhesion, its application is limited. Single- and double-layer cast film lack the wide range of material options available for three-layer cast film, and the formulation costs are also higher, so a three-layer co-extruded structure is more ideal. High-quality stretch film should exhibit high transparency, high longitudinal elongation, a high yield point, high transverse tear strength, and good puncture resistance.

[0003] In daily work, when using stretch film, it is necessary to cut the stretch film. Since the stretch film itself is relatively soft, wrinkles are easily generated when it is cut. At the same time, when cutting stretch films of different widths, it is inconvenient to limit the positions on both sides of the stretch film, resulting in reduced cutting accuracy.

[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0005] In response to the above-mentioned defects, the purpose of the present invention is to provide a stretch film positioning and cutting device, which can eliminate wrinkles on the surface of the stretch film through a pressure roller, and then cut the stretch film through a cutting mechanism, while at the same time achieving abutment and limiting of the two sides of stretch films of different widths through a limiting component, thereby avoiding the stretch film from tilting during transportation and resulting in a decrease in cutting accuracy.

[0006] The lifting mechanism is a set of one or more first cams, and the second cam is installed in the range of 1000 to 10000. The two cams have the the first and the second cams, and the third cams have the the second and the second cams, and the third cams have the the second and the second cams, and the third cams have the the second and the second cams, and the third cams have the the second and the second cams, and the third cams have the the second and the

[0007] According to the wrapping film positioning and cutting device of the present invention, the limiting assembly includes a concave groove symmetrically arranged inside the lower seat, four groups of limiting blocks slidingly arranged in the concave groove, and a bidirectional screw passing through the interior of the concave groove.

[0008] According to the stretch film positioning and cutting device of the present invention, the bidirectional screw is rotatably connected to the concave groove and the second support plate.

[0009] According to the stretch film positioning and cutting device of the present invention, a handle is provided at one end of the bidirectional screw, and the handle is located outside the second support plate.

[0010] According to the stretch film positioning and cutting device of the present invention, the four groups of limit blocks are arranged in pairs, and a connecting plate is provided at the bottom between each group of limit blocks, and the height and width of the connecting plate match the concave groove.

[0011] According to the stretch film positioning and cutting device of the present invention, the connecting plate is threadedly connected to the bidirectional screw, and the connecting plates are respectively connected to the threaded portions of the bidirectional screw in opposite directions.

[0012] The lifting mechanism is a set of one or more lifting plates, and the lifting mechanism is a set of one or more lifting plates, and the lifting mechanism is a set of one or more lifting plates. To sum up, the utility model eliminates wrinkles on the surface of the stretch film through the pressure roller, and then cuts the stretch film through the cutting mechanism. At the same time, the two sides of the stretch film of different widths are abutted and limited by the limiting component, so as to avoid the stretch film from tilting during transportation, thereby causing a decrease in cutting accuracy. It can also adapt to the requirements of cutting stretch films of different widths, and the limit block will not hinder the operation of the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a three-dimensional diagram of the present utility model;

[0014] Figure 2 This is a structural diagram of the connection relationship between the lower seat and the limiting assembly of the utility model;

[0015] Figure 3 It is a structural schematic diagram of a side view of the lower seat of the utility model;

[0016] Figure 4 It is a structural diagram of the limit assembly of the utility model;

[0017] In the figure, 1-base, 2-first support plate, 3-pressure roller, 4-second support plate, 5-lower seat, 6-upper seat, 7-telescopic cylinder, 8-cutter, 9-knife groove, 10-concave groove, 11-bidirectional screw, 12-handle, 13-limiting block, 14-connecting plate, 15-third support plate, 16-winding roller, 17-motor. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] See also Figures 1-4 The utility model provides a stretch film positioning and cutting device, comprising: a base 1, a first support plate 2 is symmetrically provided above the base 1, two groups of pressing rollers 3 are provided above and below the two groups of the first support plates 2, a second support plate 4 is symmetrically provided above the base 1, and a cutting mechanism is provided between the two groups of the second support plates 4. A third support plate 15 is symmetrically provided above the base 1, and a winding roller 16 is provided between the two groups of the third support plates 15. One end of the winding roller 16 is provided with a motor 17 installed on one side of one group of the third support plates 15; the cutting mechanism includes a lower seat 5 provided below between the two groups of the second support plates 4 and located on the base 1, an upper seat 6 provided above between the two groups of the second support plates 4, a telescopic cylinder 7 penetrating the upper seat 6 and located on the top surface of the upper seat 6, and a cutter 8 with an output end of the telescopic cylinder 7 connected and located between the two groups of the second support plates 4, a knife groove 9 is provided on the top of the lower seat 5, and a limiting component is provided inside the lower seat 5.

[0022] See also Figure 2 and Figure 3 Preferably, the limiting assembly of the present invention includes a concave groove 10 symmetrically arranged inside the lower seat 5, four groups of limiting blocks 13 slidingly arranged in the concave groove 10, and a bidirectional screw 11 passing through the inside of the concave groove 10, and the concave groove 10 facilitates the sliding of the limiting blocks 13.

[0023] See also Figure 1-Figure 3 In addition, the bidirectional screw 11 of the present invention is rotatably connected to the concave groove 10 and the second support plate 4, which facilitates the rotation of the bidirectional screw 11.

[0024] See also Figure 1and Figure 2 Furthermore, a handle 12 is provided at one end of the bidirectional screw 11 of the present invention. The handle 12 is located outside the second support plate 4 , and the bidirectional screw 11 can be easily operated through the handle 12 .

[0025] See also Figure 2-Figure 4 Better yet, the four groups of limit blocks 13 of the utility model are arranged in pairs, and a connecting plate 14 is provided at the bottom between each group of limit blocks 13. The height and width of the connecting plate 14 match the concave groove 10, and the connecting plate 14 is used to realize synchronous movement of a group of limit blocks 13. At the same time, since the height and width of the connecting plate 14 match the concave groove 10, the connecting plate 14 will move stably under the drive of the bidirectional screw 11.

[0026] See also Figure 4 Finally, the connecting plate 14 of the present invention is screwed to the bidirectional screw 11, and the connecting plate 14 is respectively connected to the threaded parts in opposite directions of the bidirectional screw 11. Through the connection between the connecting plate 14 and the bidirectional screw 11, the connecting plate 14 and the limit block 13 can move toward each other.

[0027] The working principle of this utility model:

[0028] First, the staff fixes the base 1, then installs two sets of first support plates 2 and two sets of pressure rollers 3, then connects the lower seat 5 to the base 1, places the limit block 13 and the connecting plate 14 in the concave groove 10, and then places the second support plate 4 on both sides of the lower seat 5 and installs and connects with the base 1, connects the second support plate 4, the lower seat 5 and the limit block 13 and the connecting plate 14 through the bidirectional screw 11, and then assembles and connects the handle 12 and the bidirectional screw 11, and then installs and connects the third support plate 15, the winding roller 16 and the motor 17.

[0029] When the stretch film needs to be cut, the end of the stretch film is passed between the two sets of pressure rollers 3, and then between the cutter 8 and the lower seat 5, and the stretch film is wound around the winding roller 16. Then, according to the width of the stretch film, the handle 12 is turned to drive the bidirectional screw 11 to rotate. The rotation of the bidirectional screw 11 drives the connecting plate 14 to move toward each other. The movement of the connecting plate 14 drives the limit block 13 to move. When the limit block 13 moves to abut against both sides of the stretch film, it can stop moving. At this time, the limit block 13 abuts against both sides of the stretch film, and there is a certain distance between the limit block 13 and the lower seat 5, which is convenient for the stretch film to pass through, so that the stretch film will not tilt to one side during the subsequent transportation of the stretch film, thereby improving the cutting accuracy of the stretch film and the convenience of winding the stretch film.

[0030] The lifting mechanism is a lifting mechanism, and a lifting mechanism is a lifting mechanism, and a lifting mechanism is installed in the lifting mechanism of the lifting mechanism, and a new lifting mechanism is installed in the lifting mechanism. In summary, the utility model eliminates wrinkles on the surface of the stretch film through the pressure roller, and then cuts the stretch film through the cutting mechanism. At the same time, the limiting component is used to abut and limit the two sides of the stretch film of different widths, thereby avoiding the stretch film from tilting during transportation and resulting in a decrease in cutting accuracy. It can also adapt to the requirements of cutting stretch films of different widths, and the limit block will not hinder the operation of the cutter.

[0031] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A stretch film positioning and cutting device, characterized in that: include: A base, wherein a first support plate is symmetrically provided above the base, two groups of pressing rollers are provided above and below two groups of the first support plates, a second support plate is symmetrically provided above the base, a cutting mechanism is provided between the two groups of the second support plates, a third support plate is symmetrically provided above the base, a winding roller is provided between the two groups of the third support plates, and one end of the winding roller is provided with a motor installed on one side of one group of the third support plates; The cutting mechanism includes a lower seat arranged below between the two groups of second support plates and located on the base, an upper seat arranged above between the two groups of second support plates, a telescopic cylinder passing through the upper seat and located on the top surface of the upper seat, and a cutter connected to the output end of the telescopic cylinder and located between the two groups of second support plates, a knife groove is provided on the top of the lower seat, and a limit assembly is provided inside the lower seat.

2. The stretch film positioning and cutting device according to claim 1, characterized in that: The limiting assembly includes a concave groove symmetrically arranged inside the lower seat, four groups of limiting blocks slidably arranged in the concave groove, and a bidirectional screw running through the inside of the concave groove.

3. The stretch film positioning and cutting device according to claim 2, characterized in that: The bidirectional screw is rotatably connected to the concave groove and the second support plate.

4. The stretch film positioning and cutting device according to claim 3, characterized in that: A handle is provided at one end of the bidirectional screw, and the handle is located outside the second support plate.

5. The stretch film positioning and cutting device according to claim 2, characterized in that: The four groups of limit blocks are arranged in pairs, and a connecting plate is provided at the bottom between each group of limit blocks, and the height and width of the connecting plate match the concave groove.

6. The stretch film positioning and cutting device according to claim 5, characterized in that: The connecting plate is screwed to the bidirectional screw, and the connecting plates are respectively connected to the threaded portions of the bidirectional screw in opposite directions.

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