Adjusting type elastic winding device for packaging film

Abstract

The utility model discloses a packaging film adjusting type elastic winding device which comprises racks arranged on the two sides at intervals, and film winding mechanisms arranged up and down at intervals are rotationally connected between the racks. The film winding mechanism comprises a winding shaft rotationally connected to the rack, annular adjusting frames arranged at intervals on the two sides are assembled and connected to the winding shaft, and a plurality of winding rods are assembled and connected between the annular adjusting frames; the winding rod is assembled and connected to the annular adjusting frame through a spring connecting piece. The winding rod is connected to the spring connecting piece in a sliding mode. A plurality of inner sliding arms are fixedly connected to the inner side wall of the annular adjusting frame, and a plurality of sliding grooves connected with the inner sliding arms in a sliding mode are formed in the winding shaft. A locking hoop plate is assembled and connected to the winding shaft and used for locking the inner sliding arm. And the film winding mechanisms are in transmission connection. According to the device, in the winding process, the wound thin film is kept to be wound in a neat mode, and the technical defect that in the winding process of the thin film with high looseness, the thin film is difficult to be neat is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging film processing, and in particular relates to an adjustable elastic winding device for packaging film. Background Art

[0002] Packaging film is a film made of polyethylene resin and other materials for packaging products. When the packaging film is wrapped, it can protect the packaged products from water and pollution.

[0003] In the production process of packaging film, the film discharged from the processing equipment needs to be wound on the roll rack. The current conventional roll rack mechanical structure is: the roll rack includes a rotating shaft part, and the long packaging film is rolled up during the rotation of the shaft part. During the winding process, due to the high slack of the film, the high-speed rotating shaft part cannot roll the film into a roll regularly during the winding process. In the winding process, the packaging bag film is uneven in the rolling position and the neatness is not high.

[0004] Later in the processing, the packaging bag film cannot be kept in a straight line when unwinding, resulting in the operator needing to constantly correct the posture of the packaging bag film during processing. Since the packaging bag film is often transported over long distances during processing, if the film transmission posture cannot be guaranteed to be accurate at the starting position, subsequent corrections will be cumbersome and it will be difficult to accurately correct the packaging bag film in time.

[0005] The main reason for the above technical defects is that during the winding process of a film with a relatively high degree of slack, the film cannot be stretched during winding, which makes it difficult to maintain the neatness of the winding process. In addition, during the winding process, the two ends of the coil cannot be in a contact pressure limit state, which further makes it difficult to maintain the neatness of the coil during the winding process. Utility Model Content

[0006] Based on the above background, the purpose of the utility model is to provide an adjustable elastic winding device for packaging film.

[0007] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0008] A packaging film adjustable elastic winding device comprises frames arranged at intervals on both sides, and a film winding mechanism arranged at intervals above and below is rotatably connected between the frames;

[0009] The film winding mechanism comprises a winding shaft rotatably connected to a frame, the winding shaft is equipped with annular adjustment frames spaced apart on both sides, and a plurality of winding rods are equipped between the annular adjustment frames;

[0010] The winding rod is assembled and connected to the annular adjustment frame through a spring connector; the winding rod is slidably connected to the spring connector;

[0011] The inner side wall of the annular adjustment frame is fixedly connected with a plurality of inner sliding arms, and the winding shaft is provided with a plurality of sliding grooves slidably connected with the inner sliding arms;

[0012] The reeling shaft is equipped with a locking hoop plate, which is used to lock the inner sliding arm;

[0013] The film winding mechanisms are transmission connected to each other.

[0014] Preferably, a rotating shaft rotatably connected to the frame is respectively fixedly mounted on the front and rear side walls of the winding shaft;

[0015] The rotating shaft is fixedly assembled with a pulley, and the pulleys are connected through a belt transmission;

[0016] The frame is equipped with a driving motor connected to drive the winding shaft to rotate.

[0017] Preferably, the inner sliding arm comprises a vertical portion fixedly connected to the inner side wall of the annular adjustment frame, and the vertical portion is integrally formed with a sliding portion slidably connected to the sliding groove;

[0018] The locking hoop plate is locked on the sliding part.

[0019] Preferably, the locking hoop plate is threadedly connected with a fastening bolt which is pressed against the winding shaft.

[0020] Preferably, the annular adjustment frame is provided with a plurality of installation openings, and the spring connector is fixedly assembled in the installation openings.

[0021] Preferably, the spring connector comprises a short sliding rod fixedly connected in the mounting opening, a lower sliding seat is slidably connected to the short sliding rod, and the winding rod is slidably connected to the lower sliding seat;

[0022] The two ends of the winding rod are respectively threadedly connected with a pair of nuts positioned on both sides of the lower sliding seat;

[0023] A spring is sleeved on the short sliding rod, and two ends of the spring are respectively fixedly connected to the bottom of the lower sliding seat and the installation opening.

[0024] Preferably, a vertical sliding opening is provided on the short sliding rod, the winding rod passes through the lower sliding seat, and the winding rod is slidably connected to the vertical sliding opening.

[0025] Preferably, a pressing nut for pressing down the lower sliding seat is threadedly connected on the short sliding rod.

[0026] Preferably, the driving motor is equipped with a motor mounting frame which is fixedly mounted on the frame.

[0027] The utility model has the following beneficial effects:

[0028] 1. During the working process, the distance between the front and rear annular adjustment frames is adjusted according to the width of the film to be rolled up. The method is: slide and adjust the annular adjustment frame on the winding shaft. During this process, the inner sliding arm on the inner wall of the annular adjustment frame slides in the slide groove. Then, after the sliding adjustment, the locking hoop plate is put on the sliding part of all the inner sliding arms, and then the fastening bolts are tightened on the winding shaft. In this way, the annular adjustment frame is kept from loosening during the rotation. Furthermore, after the adjustment is achieved in this way, the annular adjustment frame-winding rod can still be kept in a positioned state to maintain the stability of the rotation and winding. In addition, during the winding process, the adjustment method adjusts the distance between the annular adjustment frames according to the width of the film material to ensure that the annular adjustment frame can act as an end contact to contact the film material of the roll.

[0029] 2. During the working process, when the film is rolled up on the winding rod, due to the winding rod-lower sliding seat structure, it is subjected to the elastic force of the spring. Therefore, the winding rod always maintains a tensioned posture against the film, thereby keeping the film in a tight state, thereby increasing the neatness of the winding.

[0030] 3. During the working process, the winding shaft-winding rod structure is kept rotating synchronously under the drive of the driving motor. The purpose of this method is to synchronously wind up the film materials constituting the composite film during the composite film processing, so as to facilitate the subsequent synchronous unwinding during the unwinding production. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the spring connector in the embodiment of the utility model;

[0034] Figure 3 This is a structural schematic diagram of a film winding mechanism in an embodiment of the utility model;

[0035] Figure 4 For the utility model embodiment Figure 1 Front view in;

[0036] Figure 5 For the utility model embodiment Figure 1 Top view of .

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] Example 1

[0042] like Figure 1-5 As shown, a packaging film adjustable elastic winding device includes frames 5 spaced apart at the front and rear sides (according to the existing method, the frames 5 are fixedly installed on the working frame in a suspended installation manner), and the frames 5 are rotatably connected with film winding mechanisms spaced apart at the upper and lower sides.

[0043] This method is used to reel in the unwound film during the working process (in actual work, double-layer reeling can be performed simultaneously, which is suitable for processing double-layer composite films, or single-layer film can be reeled in from the top and then from the bottom).

[0044] The film winding mechanism includes a winding shaft 1 rotatably connected to a frame 5 (rotating shafts are fixedly mounted on both ends of the winding shaft 1, and the rotating shafts are rotatably connected to the frame 5 in the following manner: bearings matching the rotating shafts are mounted on the frame 5), and the winding shaft 1 is assembled and connected with annular adjustment frames 2 spaced apart on both sides, and a number of winding rods 3 are assembled and connected between the annular adjustment frames 2.

[0045] Specifically, the inner side wall of the annular adjustment frame 2 is fixedly connected with a plurality of inner sliding arms 22, and correspondingly, the winding shaft 1 is provided with a plurality of sliding grooves slidably connected with the inner sliding arms 22 (specifically, the shape of the inner sliding arms 22 is: the inner sliding arm 22 includes a vertical portion fixedly connected with the inner side wall of the annular adjustment frame 2, and the vertical portion is integrally formed with a sliding portion slidably connected with the sliding groove). The winding shaft 1 is equipped with a locking hoop plate 23, and the locking hoop plate 23 is used to lock the inner sliding arm 22; specifically, the locking hoop plate 23 is locked on the sliding portion.

[0046] The specific locking method is: the locking hoop plate 23 is threadedly connected with a fastening bolt 231 that is pressed against the winding shaft 1. During operation, the distance between the front and rear annular adjustment frames 2 is adjusted according to the width of the film being wound, in the following manner: the annular adjustment frame 2 is slidably adjusted on the winding shaft 1, and during this process, the inner sliding arm 22 on the inner side wall of the annular adjustment frame 2 slides in the slide groove. Subsequently, after the sliding adjustment, the locking hoop plate 23 is put on the sliding part of all the inner sliding arms 22, and then the fastening bolt 231 is pressed against the winding shaft 1. In this manner, the annular adjustment frame 2 is kept from loosening during the rotation process.

[0047] The above method can realize the winding by flexibly adjusting the film with different widths.

[0048] During the adjustment process of the annular adjustment frame 2 , the distance between the winding rod 3 and the annular adjustment frame 2 is adjusted.

[0049] Specifically, the winding rod 3 is assembled and connected to the annular adjustment frame 2 through a spring connector 32 ; the winding rod 3 is slidably connected to the spring connector 32 .

[0050] During this process, the winding rod 3 slides relative to the spring connection member 32 .

[0051] Example 2

[0052] like Figure 1-5 As shown, in this embodiment, based on the structure of the embodiment 1, a plurality of mounting openings 21 are provided on the annular adjustment frame 2 , and the spring connectors 32 are fixedly assembled in the mounting openings 21 .

[0053] The spring connector 32 includes a short slide bar 321 fixedly connected to the mounting opening 21, a lower slide seat 322 being slidably connected to the short slide bar 321, and the winding rod 3 is slidably connected to the lower slide seat 322; at the same time, a pair of nuts 31 positioned on both sides of the lower slide seat 322 are respectively threadedly connected at both ends of the winding rod 3. Correspondingly, a vertical slide opening 3211 is provided on the short slide bar 321, the winding rod 3 passes through the lower slide seat 322, and the winding rod 3 is slidably connected to the vertical slide opening 3211.

[0054] Meanwhile, a spring 323 is sleeved on the short sliding rod 321 , and two ends of the spring 323 are fixedly connected to the bottom of the lower sliding seat 322 and the installation opening 21 , respectively.

[0055] During operation, when the film is rolled up on the winding rod 3, due to the winding rod 3-lower sliding seat 322 structure, it is subjected to the elastic force of the spring 323. Therefore, the winding rod 3 always maintains a tensioned posture against the film, thereby keeping the film in a tight state, thereby increasing the neatness of the rolling.

[0056] Before winding, the lower slide seat 322 is pressed down by the pressing nut 324 threadedly connected to the short slide rod 321, and the lower slide seat 322-winding rod 3 enters the installation opening 21. During the pressing process, the winding rod 3 slides down in the vertical sliding opening 3211. During the winding process, the two ends of the coil are against the annular adjustment frame 2 (the slide seat 325-winding rod 3 is retracted into the installation opening 21), so the neatness of the coil is further maintained under the resistance of the ends of the coil.

[0057] During the spacing adjustment of the annular adjustment frame 2 , it is necessary to loosen the nuts 31 located on both sides of the lower slide seat 322 . After loosening, the winding rod 3 is adjusted to slide horizontally relative to the lower slide seat 322 and the vertical slide opening 3211 .

[0058] Example 3

[0059] like Figure 1-5 As shown, based on the structure of Example 1, this embodiment is fixedly assembled and connected to the rotating shaft with a pulley 12, and the pulleys 12 are connected by belt transmission; at the same time, the frame 5 is assembled and connected with a driving motor 4 that drives the winding shaft 1 to rotate (according to the existing conventional method, the output shaft of the driving motor 4 is installed on the rotating shaft installed on the winding shaft 1 through a coupling). During the working process, under the drive of the driving motor 4, the winding shaft 1-winding rod 3 structure is kept to rotate synchronously. The purpose of this method is: during the processing of the composite film, the film materials constituting the composite film are synchronously wound, which is convenient for the subsequent unwinding production to also be synchronous unwinding.

[0060] According to the conventional method, the driving motor 4 is equipped with a motor mounting frame fixedly mounted on the frame 5 .

[0061] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A packaging film adjustable elastic winding device, characterized in that: It comprises frames arranged at intervals on both sides, and film winding mechanisms arranged at intervals up and down are rotatably connected between the frames; The film winding mechanism comprises a winding shaft rotatably connected to a frame, the winding shaft is equipped with annular adjustment frames spaced apart on both sides, and a plurality of winding rods are equipped between the annular adjustment frames; The winding rod is assembled and connected to the annular adjustment frame through a spring connector; the winding rod is slidably connected to the spring connector; The inner side wall of the annular adjustment frame is fixedly connected with a plurality of inner sliding arms, and the winding shaft is provided with a plurality of sliding grooves slidably connected with the inner sliding arms; The reeling shaft is equipped with a locking hoop plate, which is used to lock the inner sliding arm; The film winding mechanisms are transmission connected to each other.

2. The packaging film adjustable elastic winding device according to claim 1, characterized in that: The front and rear side walls of the reel are respectively fixedly mounted with a rotating shaft rotatably connected to the frame; The rotating shaft is fixedly assembled with a pulley, and the pulleys are connected through a belt transmission; The frame is equipped with a driving motor connected to drive the winding shaft to rotate.

3. The packaging film adjustable elastic winding device according to claim 1, characterized in that: The inner sliding arm comprises a vertical portion fixedly connected to the inner side wall of the annular adjustment frame, and the vertical portion is integrally formed with a sliding portion slidably connected to the sliding groove; The locking hoop plate is locked on the sliding part.

4. The packaging film adjustable elastic winding device according to claim 3, characterized in that: The locking hoop plate is threadedly connected with a fastening bolt which is pressed against the winding shaft.

5. The packaging film adjustable elastic winding device according to claim 1, characterized in that: The annular adjustment frame is provided with a plurality of installation openings, and the spring connector is fixedly assembled in the installation openings.

6. The packaging film adjustable elastic winding device according to claim 1, characterized in that: The spring connector comprises a short sliding rod fixedly connected in the mounting opening, a lower sliding seat is slidably connected to the short sliding rod, and the winding rod is slidably connected to the lower sliding seat; The two ends of the winding rod are respectively threadedly connected with a pair of nuts positioned on both sides of the lower sliding seat; A spring is sleeved on the short sliding rod, and two ends of the spring are respectively fixedly connected to the bottom of the lower sliding seat and the installation opening.

7. The packaging film adjustable elastic winding device according to claim 6, characterized in that: A vertical sliding opening is provided on the short sliding rod, the winding rod passes through the lower sliding seat, and the winding rod is slidably connected to the vertical sliding opening.

8. The packaging film adjustable elastic winding device according to claim 7, characterized in that: The short sliding rod is threadedly connected with a pressing nut for pressing down the lower sliding seat.

9. The packaging film adjustable elastic winding device according to claim 2, characterized in that: The driving motor is connected to a motor mounting frame which is fixedly mounted on the frame.

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