Unreeling and deviation rectifying mechanism for stretching and wrapping film

Abstract

The utility model relates to the technical field of film stretching packaging, and discloses a stretching wrapping film unwinding deviation rectifying mechanism which comprises a roller. An outer cover is arranged outside the roller, the roller is installed in the outer cover and rotationally connected with the outer cover, an opening is formed in the outer cover, a shell is fixedly installed on one side of the outer cover, through grooves communicated with the interior of the shell are formed in the two ends of the shell, an auxiliary assembly is installed between the outer cover and the shell and close to the positions, corresponding to the opening, of the through grooves of the outer cover, and a correcting assembly is installed in the shell. Inclined rods are mounted at the end, away from the outer cover, of the shell and correspond to the upper and lower ends of the through groove; according to the stretching and winding film unwinding deviation rectifying mechanism, the roller is arranged, a film on the roller can enter the shell, during normal winding, the film can be torn open and is not prone to being overlapped together under driving of threads, and during inclined winding, the two transmission rods in the set can also unfold the film, so that the film is not prone to falling off. In this way, the deviation rectifying effect can be achieved when the thin film is wound.

Description

Technical Field

[0001] The utility model relates to the technical field of film stretch packaging, in particular to a stretch wrapping film unwinding and deviation correction mechanism. Background Art

[0002] Stretch film wrapping machine is called wrapping machine for short. To distinguish it from other wrapping machines, some people call it wrapping machine because it uses stretch film (also called wrapping film) as consumables. There are also many different names such as pallet baler and pallet wrapping machine. This is a packaging machine that has emerged as people's requirements for logistics efficiency continue to increase, and to reduce labor, save packaging costs and achieve economical loading and unloading. The correction device is a mechanical device that corrects the side error of the coil during forward movement. The displacement correction realizes the side correction of the coil by changing the span of the coil at the inlet and outlet.

[0003] However, the current stretch wrap film needs to be wrapped diagonally during packaging, which causes the ends of the film to overlap and be difficult to tear apart. Ultimately, during packaging, the available width of the film will be greatly reduced, and the strength of the packaging will also be reduced. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a stretch wrap film unwinding and correcting mechanism, which has the advantage of non-overlapping oblique winding, and solves the problem in the prior art that the ends of the films are overlapped and adhered together and are difficult to separate.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stretch wrap film unwinding and correction mechanism, comprising a roller; an outer cover is provided on the outside of the roller, the roller is installed in the outer cover and is rotatably connected to the outer cover, an opening is provided on the outer cover, an outer shell is fixedly installed on one side of the outer cover, both ends of the outer shell are provided with through grooves connected to the interior of the outer cover, the through groove close to the outer cover corresponds to the position of the opening, an auxiliary component is installed between the outer cover and the outer shell, a correction component is installed in the outer shell, and inclined rods are installed at the positions of the upper and lower ends of the through groove at one end of the outer cover away from the outer cover.

[0008] In some embodiments, the correction assembly includes two groups of transfer rods and conveying rods. Any group of transfer rods has two transfer rods, one end of which is connected to the side wall of the outer shell, and the other end of the transfer rod away from the transfer rod is connected to the inner wall of the end of the outer shell. The transfer rods can change their angles relative to the outer shell. There are several conveying rods, at least one, and the conveying rod is arranged in the outer shell, and its main axis is rotatably connected to the outer shell.

[0009] In some embodiments, threads are provided on the outside of the transmission rods, the threads on the two transmission rods in any group are in opposite directions, and the transmission rod at the end of the shell is tilted.

[0010] In some embodiments, the two groups of transfer rods are symmetrically arranged up and down with respect to the transverse center line of the housing.

[0011] In some embodiments, the ends of the two transfer rods of any group that are away from each other are fixedly mounted with fixing ears, and the fixing ears are fixed to the housing by bolts.

[0012] In some embodiments, the position of the inclined rod corresponds to the inclined transmission rod, and the inclined rod has a larger inclination angle than the transmission rod.

[0013] In some embodiments, the auxiliary component includes a transmission rod and a bracket. There are two brackets, which are distributed up and down and fixedly connect the outer cover and the outer shell. There are two transmission rods, both of which are located between the two brackets and are rotatably connected relative to the two brackets. The transmission rods correspond to the position of the through slot.

[0014] In some embodiments, the upper end of the outer cover can be opened to allow the drum to be inserted.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a stretch wrap film unwinding and deviation correction mechanism, which has the following beneficial effects:

[0017] 1. The unwinding and correcting mechanism of the stretch wrap film is provided with a roller, and the film on the roller can enter the shell, and then is transported to the transfer rod by two conveying rods. When winding normally, driven by the thread, the upper and lower groups of transfer rods can separate the films from each other, and the films can be torn apart, and they are not easy to overlap. When winding obliquely, one end of the film bears the force of the obliquely distributed transfer rods, and the two transfer rods of this group will also unfold the film. When one end of the film is subjected to a large pulling force, it is not easy to overlap. Therefore, the correction effect can be achieved when the film is wound.

[0018] 2. The stretch wrap film unwinding and correcting mechanism is provided with auxiliary components, so that the film extending from the outer cover can be first transmitted by the auxiliary components before entering the outer shell, and then the inclined rods on the outer shell can also make the ends of the film expand outwards, and it is not easy to stick together inwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a top view of the structure of the utility model;

[0021] Figure 3This is a side view of the structure of the utility model;

[0022] Figure 4 This is a diagram of the internal structure of the outer cover and the outer shell of the utility model;

[0023] Figure 5 It is the structural diagram of the transfer rod of the utility model.

[0024] In the figure: 1. roller; 2. outer cover; 3. opening; 4. shell; 5. through slot; 6. auxiliary component; 601. transmission rod; 602. bracket; 7. correction component; 701. transfer rod; 702. conveying rod; 703. fixing ear; 8. inclined rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the related art, the stretch wrap film needs to be wrapped diagonally during packaging. The diagonal wrapping will cause the ends of the film to overlap and be difficult to tear apart. Ultimately, during packaging, the available width of the film will be greatly reduced, and the strength of the packaging will also be reduced.

[0029] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a stretch wrap film unwinding and correction mechanism. When it is needed, only the roller 1 with the film needs to be placed in the outer cover 2. The film extending from the outer cover 2 can be transmitted by the auxiliary component 6 first before entering the outer shell 4, and then transported to the transfer rod 701 by the two conveying rods 702. When winding normally, driven by the thread, the upper and lower groups of transfer rods 701 can separate the films from each other, and can tear the films apart, making them difficult to overlap. When winding at an angle, one end of the film is subjected to the force of the inclined distribution transfer rod 701, and the two transfer rods 701 of this group will also cause the film to unfold. When one end of the film is subjected to a large pulling force, it is not easy to overlap. The inclined rod 8 on the outer shell 4 can also make the end of the film expand outward, making it difficult to stick inward.

[0030] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0031] Combination Figure 1-Figure 5 The embodiment of the present application provides a stretch wrap film unwinding and correcting mechanism, including a roller 1; an outer cover 2 is provided on the outside of the roller 1, the roller 1 is installed in the outer cover 2 and is rotatably connected thereto, an opening 3 is provided on the outer cover 2, a shell 4 is fixedly installed on one side of the outer cover 2, and both ends of the shell 4 are provided with through grooves 5 connected to the interior thereof, the through groove 5 close to the outer cover 2 corresponds to the position of the opening 3, an auxiliary component 6 is installed between the outer cover 2 and the shell 4, a correction component 7 is installed in the shell 4, and inclined rods 8 are installed at the positions corresponding to the upper and lower ends of the through groove 5 at one end of the shell 4 away from the outer cover 2.

[0032] In this embodiment, the opening 3 of the outer cover 2 is used for the film to extend out, and the through slot 5 is used for the film to enter and exit.

[0033] In some embodiments, the correction component 7 includes two groups of transfer rods 701 and conveying rods 702. Any group of transfer rods 701 has two transfer rods, one end of which is connected to the side wall of the outer shell 4, and the other end of the transfer rod 701 away from it is connected to the inner wall of the end of the outer shell 4. The transfer rods 701 can change their angles relative to the outer shell 4. There are several conveying rods 702, at least one. The conveying rod 702 is arranged in the outer shell 4, and its main axis is rotatably connected to the outer shell 4.

[0034] Specifically, the conveying rod 702 plays a role of intermediate transmission to prevent the film from contacting the inner wall of the shell 4.

[0035] In some embodiments, threads are disposed on the outside of the transmission rods 701 , and the threads on the two transmission rods 701 in any group are in opposite directions, and the transmission rods 701 at the ends of the housing 4 are tilted.

[0036] Specifically, the two transfer rods 701 with opposite threads can separate the film when conveying and rotating, and the film can slide relative to the threads.

[0037] In some embodiments, the two groups of transfer rods 701 are symmetrically arranged up and down about the transverse center line of the housing 4.

[0038] In some embodiments, a fixing ear 703 is fixedly installed at one end of two transfer rods 701 of any group that are away from each other, and the fixing ear 703 is fixed to the housing 4 by bolts.

[0039] Specifically, the fixing ear 703 can change the angle between the fixing ear 703 and the housing 4 after the bolt is loosened.

[0040] In some embodiments, the position of the inclined rod 8 corresponds to the inclined transmission rod 701 , and the inclined angle of the inclined rod 8 is larger than that of the transmission rod 701 .

[0041] Specifically, the inclined rod 8 is used to further open the end of the film.

[0042] In some embodiments, the auxiliary component 6 includes a transmission rod 601 and a bracket 602. There are two brackets 602, which are distributed up and down and fixedly connect the outer cover 2 and the outer shell 4. There are two transmission rods 601, which are both located between the two brackets 602 and are rotatably connected relative to the two brackets 602. The transmission rod 601 corresponds to the position of the through groove 5.

[0043] Specifically, the transfer rod 701 serves as an intermediate transmission component to prevent the film from being without support in the middle.

[0044] In some embodiments, the upper end of the outer cover 2 can be opened to allow the drum 1 to be placed inside.

[0045] Specifically, it can be used to replace the roller 1 with the film.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0047] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stretch film unwinding and deviation correction mechanism, comprising a roller (1); Features: The drum (1) is provided with an outer cover (2) outside, the drum (1) is installed in the outer cover (2) and is rotatably connected thereto, an opening (3) is provided on the outer cover (2), an outer shell (4) is fixedly installed on one side of the outer cover (2), both ends of the outer shell (4) are provided with through grooves (5) communicating with the interior thereof, the through grooves (5) close to the outer cover (2) correspond to the position of the opening (3), an auxiliary component (6) is installed between the outer cover (2) and the outer shell (4), a correction component (7) is installed in the outer shell (4), and inclined rods (8) are installed at the positions corresponding to the upper and lower ends of the through groove (5) at one end of the outer cover (4) away from the outer cover (2).

2. The stretch film unwinding and deviation correction mechanism according to claim 1, characterized in that: The correction assembly (7) comprises two groups of transmission rods (701) and a conveying rod (702). Any group of transmission rods (701) has two transmission rods, one end of one transmission rod (701) is connected to the side wall of the outer shell (4), and the other end of the transmission rod (701) away from the transmission rod is connected to the inner wall of the end of the outer shell (4). The transmission rods (701) can change their angles relative to the outer shell (4). There are a plurality of conveying rods (702), at least one. The conveying rod (702) is arranged in the outer shell (4), and its main shaft is rotatably connected to the outer shell (4).

3. The stretch film unwinding and deviation correction mechanism according to claim 2, characterized in that: The transmission rods (701) are all provided with threads on their exteriors. The threads on the two transmission rods (701) in any group are in opposite directions. The transmission rods (701) at the ends of the housing (4) are arranged tilted.

4. The stretch film unwinding and deviation correction mechanism according to claim 3, characterized in that: The two groups of transmission rods (701) are symmetrically arranged up and down with respect to the transverse center line of the housing (4).

5. The stretch film unwinding and deviation correction mechanism according to claim 4, characterized in that: A fixing ear (703) is fixedly mounted on one end of the two transmission rods (701) of any group that is away from each other. The fixing ear (703) is fixed to the housing (4) by means of bolts.

6. The stretch film unwinding and deviation correction mechanism according to claim 5, characterized in that: The position of the inclined rod (8) corresponds to the inclined transmission rod (701), and the inclined angle of the inclined rod (8) is greater than that of the transmission rod (701).

7. The stretch film unwinding and deviation correction mechanism according to claim 1, characterized in that: The auxiliary component (6) comprises a transmission rod (601) and a bracket (602). Two brackets (602) are provided, which are distributed up and down and fixedly connected to the outer cover (2) and the outer shell (4). Two transmission rods (601) are provided, both of which are located between the two brackets (602) and are rotatably connected relative to the two brackets (602). The transmission rods (601) correspond to the position of the through slot (5).

8. The stretch film unwinding and deviation correction mechanism according to claim 1, characterized in that: The upper end of the outer cover (2) can be opened to allow the drum (1) to be placed inside.

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