Novel film drawing device

Abstract

The utility model discloses a novel film drawing device which comprises two barrel clamping seats which are symmetrically clamped at the two axial ends of a packaging film barrel. The clamping cylinder seat is inserted into the supporting piece and rotates by taking the clamping cylinder seat as an axis; the handheld part is inserted into one end of the supporting part through a locking mechanism, and an elastic part used for tightly jacking the clamping cylinder seat is arranged at the end, close to the direction of the clamping cylinder seat, of the handheld part. By arranging the elastic component, a stable and continuous clamping effect can be exerted on the packaging film barrel in the axial direction, and the film barrel is prevented from falling off from the barrel clamping base. Due to the fact that the elastic component can exert continuous jacking force on the clamping cylinder base, the clamping cylinder base can bear certain resistance when the packaging film is pulled, the packaging film is stretched flatly and tightly instead of being stretched loosely, and the packaging effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of film stretching equipment, and specifically relates to a novel film stretching device. Background Art

[0002] Packaging film is commonly used for packaging and packaging of articles, and can also be used for covering crops, etc. There are many types of film stretchers for packaging film. The new patents with announcement numbers CN211055515U, CN204162162U and CN219904901U are all common film stretchers, which are small in size and suitable for stretching small-sized packaging films.

[0003] A new patent with announcement number CN220595344U discloses a film puller, which has the advantage of being adaptable to packaging films of different sizes. It adjusts the spacing between clamping parts through fasteners and positioning holes, and has a certain effect.

[0004] However, this structure has certain disadvantages:

[0005] First, the adjustment of the spacing of the clamping parts is a fixed-size adjustment, that is, even if the above patented product can adapt to packaging film tubes of more specifications and sizes, these specifications and sizes are all fixed sizes, and it is impossible to achieve any size adjustment between multiple specifications and sizes. Because the packaging film tube is made of paper, it is easy for the ends of the film tube to be deformed, softened by moisture, or incomplete during transportation and use. When the ends are uneven, it is easy to cause the clamping to be loose, especially when pulling the packaging film. It is difficult to fully clamp the film tube by adjusting the fixed size alone. It is easy to fall off when pulling hard, and it needs to be reinstalled before it can continue to be used.

[0006] Secondly, when the packaging film is pulled and stretched, the film cylinder is in a rotating state, and the film cylinder will be subjected to lateral pulling force. The clamping part is the main force-bearing component, and the clamping part is connected to the main body on one side. In other words, there is a distance between the clamping part and the main body, and the force-bearing positions of the two are not uniform. Long-term use will easily cause the second connecting rod and the main body to loosen. Moreover, the second connecting rod and the main body are connected in a sleeve-type sliding connection, and there will inevitably be a gap between the two. These defects will cause the film cylinder to be clamped loosely.

[0007] Third, none of the above-mentioned patents can achieve the tensioning effect when the packaging film is pulled and stretched, that is, the packaging film will not be in a taut state, which will be affected when performing special laminating operations, causing the packaging film to become loose and unable to fully fit the product or be stretched taut. Utility Model Content

[0008] The purpose of the utility model is to solve the above technical problems existing in the prior art and provide a new film pulling device, which can adapt to the adjustment of any size among various specifications and sizes, and is particularly suitable for the case where the end of the packaging film tube is uneven, and can firmly clamp the film tube. At the same time, it can also prevent the problem that the film tube cannot be used after being detached, that is, the film tube can continue to be rotated and used after being loosened.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A novel film drawing device comprises two clamping cylinder seats which are symmetrically clamped at two axial ends of a packaging film cylinder;

[0011] Its characteristics are:

[0012] It also includes a support member, and the chuck seat is plugged into the support member and rotates around the support member as the axis;

[0013] And a hand piece, which is plugged into one end of the support member through a locking mechanism, and one end of the hand piece close to the chuck seat is provided with an elastic component for tightening the chuck seat.

[0014] Preferably, the elastic component is a compression spring.

[0015] Preferably, the locking mechanism comprises a plurality of positioning holes uniformly provided in the axial direction on the support member and the handpiece and positioning pins adapted thereto.

[0016] Preferably, the length of the elastic component is greater than the hole distance between every two adjacent positioning holes.

[0017] Preferably, the positioning pin is provided with an anti-slip ring, one end of the anti-slip ring is hinged to one end of the positioning pin, and the other end of the anti-slip ring is clamped to the other end of the positioning pin.

[0018] Preferably, the chuck seat is rotatably connected to the support member via a bearing.

[0019] Preferably, the clamping seat is provided with at least two annular stepped platforms of different diameters on one side facing the packaging film cylinder. (The two stepped platforms are concentrically corresponding to each other and gradually shrink.)

[0020] Preferably, a detachable blocking piece is provided at one end of the support piece away from the handpiece.

[0021] Preferably, the hand piece is provided with an anti-slip handle.

[0022] The utility model can exert a stable and continuous clamping effect on the packaging film cylinder in the axial direction by arranging the elastic component. Even if the two ends of the film cylinder are uneven, the elastic component can exert a lasting tightening force thereon. There will be no gap margin between the film cylinder and the clamping cylinder seat, which prevents the film cylinder from falling off the clamping cylinder seat, and makes it easier to stretch the packaging film.

[0023] Moreover, even if the film cylinder is pulled off due to excessive force, it can be limited by the support and cannot fall off, and the function of stretching the packaging film can continue to be realized. Workers can reinstall the film cylinder when they are free, without the problem of the film cylinder being unusable after being detached.

[0024] Third, because the elastic component will apply a continuous tightening force to the clamp seat, the clamp seat will be subject to a certain resistance when pulling the packaging film, so that the packaging film is stretched flat and taut instead of loosely stretched, and the packaging effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic structural stereogram of the utility model.

[0027] Figure 2 It is a schematic structural front view of the utility model.

[0028] Figure 3 yes Figure 2 Schematic diagram of the changing state structure.

[0029] Figure 4 It is a schematic enlarged view of the structure of the elastic component in the utility model.

[0030] Figure 5 yes Figure 4 Schematic diagram of the changing state structure.

[0031] In the figure:

[0032] 100 - clamp seat 101 - bearing 200 - support piece 300 - hand piece 301 - anti-slip plate 400 - positioning hole 401 - pin shaft 402 - anti-slip ring 5 - elastic component 6 - membrane cylinder. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] The following is combined with Figure 1 To Attachment Figure 5 , some embodiments of the present utility model are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] Reference Figures 1 to 5 The utility model discloses a novel film drawing device, comprising two clamping cylinder seats 100, which are symmetrically clamped at the axial ends of a packaging film cylinder 6. The clamping cylinder seats 100 are common stepped discs and can adapt to film cylinders 6 of different diameters.

[0036] The support 200 is also included, and in practice, a stainless steel tube is used. The two chuck seats 100 are plugged into the support 200 and rotate with the support 200 as the axis. Since the film cylinder 6 is also fixed on the chuck seat 100, the film cylinder 6 can also rotate with the support 200 as the axis, and the packaging film can be pulled and stretched. Of course, the chuck seat 100 can be more stably connected to the support 100 by providing a bearing 101.

[0037] The best state is that the support member 200 , the clamping cartridge seat 100 and the film cartridge 6 are coaxially corresponding to each other.

[0038] In addition, a hand piece 300 is provided, which is also made of a stainless steel tube in practice. It is plugged into one end of the support member 200 through a locking mechanism. The two are plugged in, and the locking mechanism can achieve a plug-in locking effect between the two. An elastic component 5 for tightening the chuck seat 100 is provided at one end of the hand piece 300 close to the chuck seat 100. The elastic component 5 is a compression spring.

[0039] Reference Figure 4 and attached Figure 5 By setting a compression spring, a continuous tightening force can be applied to the clamp seat 100, that is, the two ends of the film cylinder 6 can be firmly clamped by the clamp seat 100. In reality, because the two ends of the film cylinder 6 are not flat and flawless, when there are deformation, moisture softening or incomplete uneven conditions, under the continuous tightening effect of the compression spring, the clamp seat 100 can always press in the direction of the film cylinder 6. This tightening force is continuous and stable. In addition, the support member 200, the clamp seat 100 and the film cylinder 6 are coaxially corresponding, which can ensure the stable rotation of the film cylinder 6, and the packaging film is pulled more stably.

[0040] At the same time, when the compression spring is continuously tightened, the clamp seat 100 will encounter a certain resistance when rotating. This resistance can just tighten the stretched packaging film to make it flat instead of loose and drooping, and the packaging effect of the product is better and more beautiful.

[0041] Reference Figure 2 and attached Figure 3 In the above embodiment, the locking mechanism includes a plurality of positioning holes 400 evenly arranged in the axial direction on the support member 200 and the hand piece 300 and positioning pins 401 adapted thereto. That is to say, the degree of insertion between the support member 200 and the hand piece 300 is controlled by the cooperation of the positioning holes 400 and the positioning pins 401, thereby achieving the combined use of membrane cylinders of different lengths.

[0042] This structure can ensure that the hand piece 300 does not interfere with the clamping cartridge seat 100, and when pulling the packaging film, the hand piece 300 does not interfere, that is, people can operate by holding the hand piece 300. Moreover, the hand piece 300 can lift the film cartridge 6, which is suitable for packaging tall products.

[0043] In addition, refer to the attached Figure 4 and attached Figure 5 The best effect is achieved when the length of the compression spring 5 is greater than the hole distance between each two adjacent positioning holes 400, that is, the distance between each two adjacent positioning holes 400 is adjusted to adapt to the specifications of a membrane cylinder 6, and the length of the compression spring 5 is greater than the distance between the two adjacent positioning holes 400. Therefore, when in use, the compression spring is in a compressed state, and the clamp seat 100 will be subjected to a continuous tightening force, and the clamp seat 100 will not loosen or shake.

[0044] As a further improvement, an anti-slip ring 402 is provided on the locating pin 401, one end of the anti-slip ring 402 is hinged to one end of the locating pin 401, and the other end of the anti-slip ring 402 is clamped to the other end of the locating pin 401, so that the locating pin 401 is not easy to fall off, and the insertion of the locating pin 401 can only be controlled by manually turning the anti-slip ring 402.

[0045] As a further improvement, a detachable blocking piece is provided at one end of the support member 200 away from the hand piece 300, which mainly serves to block the cartridge holder 100. That is to say, the cartridge holder 100 away from the hand piece 300 will not be separated from the support member due to the influence of the blocking piece. At the same time, disassembling and assembling the blocking piece can also realize the replacement of the film cartridge 6. If the blocking piece is not detachable, the film cartridge 6 can also be replaced, but the support member and the hand piece can only be disassembled by disassembling and assembling the positioning pin 401.

[0046] Preferably, the hand piece 300 is provided with an anti-slip handle 301 .

[0047] The utility model can exert a stable and continuous clamping effect on the packaging film cylinder in the axial direction by arranging the elastic component. Even if the two ends of the film cylinder are uneven, the elastic component can exert a lasting tightening force thereon. There will be no gap margin between the film cylinder and the clamping cylinder seat, which prevents the film cylinder from falling off the clamping cylinder seat, and makes it easier to stretch the packaging film.

[0048] Moreover, even if the film cylinder is pulled off due to excessive force, it can be limited by the support and cannot fall off, and the function of stretching the packaging film can continue to be realized. Workers can reinstall the film cylinder when they are free, without the problem of the film cylinder being unusable after being detached.

[0049] Third, because the elastic component will apply a continuous tightening force to the clamp seat, the clamp seat will be subject to a certain resistance when pulling the packaging film, so that the packaging film is stretched flat and taut instead of loosely stretched, and the packaging effect is better.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A novel film drawing device, comprising two clamping cylinder seats (100) which are symmetrically clamped at two axial ends of a packaging film cylinder (6); Its characteristics are: It also includes a support member (200), the chuck seat (100) being plugged into the support member (200) and rotating around the support member (200); And a hand piece (300) which is plugged into one end of the support piece (200) via a locking mechanism, and an elastic component (5) for tightening the chuck seat (100) is provided at one end of the hand piece (300) close to the chuck seat (100).

2. The film-drawing device according to claim 1, characterized in that: The elastic component (5) is a compression spring.

3. The film-drawing device according to claim 2, characterized in that: The locking mechanism comprises a plurality of positioning holes (400) uniformly arranged in the axial direction on the support member (200) and the handpiece (300), and positioning pins (401) adapted thereto.

4. The film-drawing device according to claim 3 is characterized in that: The length of the elastic component (5) is greater than the hole distance between any two adjacent positioning holes (400).

5. The film-drawing device according to claim 3, characterized in that: An anti-slip ring (402) is provided on the positioning pin (401), one end of the anti-slip ring (402) is hinged to one end of the positioning pin (401), and the other end of the anti-slip ring (402) is clamped to the other end of the positioning pin (401).

6. The film drawing device according to claim 1 or 2, characterized in that: The chuck seat (100) is rotatably connected to the support member (200) via a bearing (101).

7. The film-drawing device according to claim 1, characterized in that: At least two annular stepped platforms with different diameters are respectively provided on one side of the clamping cylinder seat (100) facing the packaging film cylinder (6).

8. The film-drawing device according to claim 1, characterized in that: A detachable blocking piece is provided at one end of the support piece (200) away from the hand piece (300).

9. The film-drawing device according to claim 1, characterized in that: The hand piece (300) is provided with an anti-slip handle (301).

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