CN214421904U

CN214421904U - Unwinding device of packaging film

Info

Publication number: CN214421904U
Application number: CN202023162947.2U
Authority: CN
Inventors: 刘晓东
Original assignee: Dede Packaging Materials Hebei Co ltd
Current assignee: Dede Packaging Materials Hebei Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-19
Anticipated expiration: 2030-12-24

Abstract

The application relates to an unwinding device of a packaging film, which belongs to the technical field of packaging film production and comprises a pair of supporting seats, wherein the inner sides of the pair of supporting seats are rotatably connected with a swing frame, and a central roller which is used for winding the packaging film and is hollow in the middle is arranged on the swing frame; the swing frame comprises a rotating shaft arranged between a pair of supporting seats, one end of the rotating shaft is fixedly connected with a first main swing arm, the other end of the rotating shaft is fixedly connected with a second main swing arm, and the first main swing arm and the second main swing arm are respectively and fixedly connected with a shell; an abutting rod which is contacted with one end surface of the central roller and a driving assembly which drives the abutting rod to move are arranged in a shell connected with the first main swing arm; a cylinder which is connected with the center roller in an inserted manner is arranged in a shell connected with the second main swing arm; the side walls of the cylinder and the abutting rod are respectively provided with scale marks. The application has the effect of reducing the possibility of the packaging film tilting during the conveying process.

Description

Unwinding device of packaging film

Technical Field

The application relates to the technical field of packaging film production, especially, relate to an unwinding device of packaging film.

Background

At present, the production of the packaging film basically adopts mechanized assembly line type operation, thereby greatly improving the production efficiency of the packaging film.

The present has been granted chinese utility model patent that is No. CN209161036U, and it discloses a wrapping film is compound with unreeling device, include two bearing bracket and articulate between two bearing bracket and order about pivoted swing span through a actuating mechanism, the swing span includes a pivot and sets firmly the swing arm at the pivot both ends respectively, swing arm inside wall both ends all are provided with a bracket body that is C-shaped, and double-phase has erect a home roll axle that is used for twining the wrapping film to between the bracket body, is provided with the scale mark on the lateral wall of bracket body.

When the main roll shaft is installed, the main roll shaft can be placed in the middle of the two swing arms through the scale marks on the bracket body, so that inclined material conveying can be avoided as much as possible, and normal production operation can be guaranteed as much as possible. In view of the above related art, the inventor provides another unwinding device for packaging films, aiming at solving the problem of inclination when the packaging films are conveyed.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that the packaging film inclines in the conveying process, the application provides an unwinding device of the packaging film.

The application provides a unwinding device of packaging film adopts following technical scheme:

the unwinding device for the packaging film comprises a pair of oppositely arranged supporting seats, wherein the inner sides of the pair of supporting seats are rotatably connected with a swing frame, and a central roller which is used for winding the packaging film and is hollow in the middle is mounted on the swing frame;

the swing frame comprises a rotating shaft arranged between a pair of supporting seats, one end of the rotating shaft is fixedly connected with a first main swing arm, the other end of the rotating shaft is fixedly connected with a second main swing arm, and the first main swing arm and the second main swing arm are respectively and fixedly connected with a shell opposite to the end part of the central roller;

a butting rod corresponding to one end face of the central roller and a driving assembly for driving the butting rod to move along the axial direction of the butting rod are arranged in a shell connected with the first main swing arm;

a cylinder which is in sliding insertion connection with the other end of the central roller is arranged in a shell connected with the second main swing arm;

and scale marks are respectively arranged on the piston rod of the cylinder and the side wall of the abutting rod.

Through adopting above-mentioned technical scheme, when utilizing unwinding device to unreel, at first need guarantee that the center roll is in the position in the middle of first main swing arm and the second main swing arm, when installing the center roll, at first peg graft the center roll on the cylinder, then utilize drive assembly to drive the direction removal of butt pole towards the center roll, the in-process that the butt pole removed can drive the center roll and move along the piston rod of cylinder, because all be provided with the scale mark on the lateral wall of butt pole and cylinder piston rod, so expose the scale mark of casing through observing on butt pole and the cylinder piston rod and can make the center roll be located the position in the middle of first main swing arm and the second main swing arm, can avoid the packaging film to take place the slope at the in-process of conveying this moment as far as possible.

Optionally, drive assembly including be located the casing and with butt pole fixed connection's rack, the top meshing of rack has the gear, wear to be equipped with on the gear and rotate the dwang of being connected with the casing, the tip fixedly connected with hand wheel that the dwang is located the casing outside.

Through adopting above-mentioned technical scheme, when needs drive the butt joint pole and remove, rotate the hand wheel and drive the dwang and rotate, can drive the gear when the dwang rotates and rotate to the drive removes with the rack of gear engaged with, and then realizes driving the butt joint pole and remove.

Optionally, a sliding rail for sliding the rack is fixedly connected inside the housing.

Through adopting above-mentioned technical scheme, set up the slide rail and can make the rack remove along fixed track to can guarantee that the butt connects the pole accuracy on the terminal surface of center roller.

Optionally, a plurality of rollers are mounted on the lower surface of the rack.

Through adopting above-mentioned technical scheme, set up the gyro wheel on the lower surface of rack and can make more smooth and easy that the rack removed.

Optionally, a positioning mechanism for positioning the center roller is fixedly connected to the housing connected to the second main swing arm, and a locking assembly for limiting the movement of the abutting rod is fixedly connected to the housing connected to the first main swing arm.

Through adopting above-mentioned technical scheme, when the center roll removed the position in the middle of first initiative swing arm and the second initiative swing arm, utilize positioning mechanism to fix a position one of them one end of center roll to utilize locking Assembly to lock the butt joint pole, thereby the restriction butt joint pole removes, and then can fix the position of center roll, avoids taking place the skew at transportation in-process center roll.

Optionally, the positioning mechanism includes an annular plate slidably sleeved on the cylinder piston rod, a guide rod penetrating through the inside of the housing is fixedly connected to a side wall of the annular plate far away from the center roller, a plurality of insertion holes are formed in the guide rod along the length direction of the guide rod, and the housing is fixedly connected with an insertion assembly which is inserted into the insertion holes.

By adopting the technical scheme, when the center roller needs to be positioned, the annular plate is moved to abut against the end face of the center roller, and then the plug-in assembly is plugged into the plug-in hole of the center roller, so that the annular plate can be positioned, and the center roller can be positioned; the annular plate can be more stably moved in the moving process by arranging the guide rod.

Optionally, the inserting assembly includes a fixing plate fixedly connected to the housing, and an inserting rod passing through the fixing plate and inserted into the inserting hole.

Through adopting above-mentioned technical scheme, when needs fix a position the annular plate, pass the fixed plate and peg graft in the spliced eye of guide bar with the spliced pole to can fix the position of annular plate.

Optionally, the locking assembly includes a pair of clamping plates fixedly connected to the housing and attached to the abutting rod, and a screw rod for abutting the abutting rod is disposed through the clamping plates.

Through adopting above-mentioned technical scheme, when needs locking the butt joint pole, through revolving the wrong screw rod and make the screw rod support tightly on the lateral wall of butt joint pole to realize locking the butt joint pole.

In summary, the present application includes at least one of the following beneficial technical effects:

1. one end of the center roller is inserted into the cylinder, and the other end of the center roller is provided with the abutting rod which drives the center roller to move, so that the center roller can move to the position between the first driving swing arm and the second driving swing arm, the packaging film can be conveyed along the middle as far as possible, and the possibility of deviation is reduced;

2. through set up positioning mechanism on the cylinder to set up locking Assembly and can make the central roll lock when being located the intermediate position on the butt joint pole, thereby avoid the central roll to take place the skew at the removal in-process.

Drawings

Fig. 1 is a schematic structural diagram of an unwinding device in an embodiment of the present application.

Fig. 2 is a schematic structural diagram showing installation of the center roller in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a butting rod and a driving assembly in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a cylinder and a positioning mechanism in the embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Description of reference numerals: 1. a supporting seat; 2. a swing frame; 21. a rotating shaft; 22. a first main swing arm; 23. a second main swing arm; 24. an auxiliary swing arm; 25. a center roller; 26. a guide roller; 3. a housing; 4. a cylinder; 41. scale lines; 5. a positioning mechanism; 51. an annular plate; 52. a guide bar; 521. inserting holes; 53. a limiting block; 54. a plug-in assembly; 541. a fixing plate; 542. a plug rod; 543. mounting blocks; 544. a spring; 6. a butting rod; 61. inserting the column; 611. chamfering; 7. a drive assembly; 71. rotating the rod; 72. a hand wheel; 73. a gear; 74. a rack; 741. a roller; 75. a slide rail; 8. a locking assembly; 81. a clamping plate; 82. a screw.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses unwinding device of packaging film. Referring to fig. 1, the unwinding device includes two opposite supporting seats 1 and a swing frame 2 rotatably connected between the two supporting seats 1. The swing frame 2 comprises a rotating shaft 21 which is rotatably connected between the two supporting seats 1, wherein a first main swing arm 22 which is arranged along the radial direction of the rotating shaft 21 is fixedly connected to one end of the rotating shaft 21, and the end part of the rotating shaft 21 is positioned in the middle of the first main swing arm 22; a second main swing arm 23 corresponding to the first main swing arm 22 is fixedly connected to the other end of the rotating shaft 21.

The two ends of the rotating shaft 21 are further fixedly connected with auxiliary swing arms 24, the two auxiliary swing arms 24 are arranged along the radial direction of the rotating shaft 21, and the auxiliary swing arms 24 are perpendicular to the first main swing arm 22.

The two ends of the first main swing arm 22 and the second main swing arm 23 are fixedly connected with rectangular shells 3 respectively, a central roller 25 for winding a packaging film is rotatably installed between the shells 3 on the same side of the first main swing arm 22 and the second main swing arm 23, and the interior of the central roller 25 is hollow; two guide rollers 26 located at both ends are fixedly connected between the two auxiliary swing arms 24, and the orientation of the packaging film can be guided by providing the guide rollers 26. When the wrapping film is wound around the center roller 25, both end portions of the center roller 25 are provided to protrude from the wrapping film.

Referring to fig. 2, the housing 3 horizontally passing through the second main swing arm 23 is provided with a cylinder 4 slidably inserted into the center roller 25, and a positioning mechanism 5 for positioning the center roller 25 is provided outside a piston rod of the cylinder 4.

Referring to fig. 3 and 4, a contact rod 6 penetrating the housing 3 and contacting the other end of the center roller 25 is disposed inside the housing 3 connected to the first main swing arm 22, a driving unit 7 driving the contact rod 6 to move along an axial direction of the contact rod 6 is further disposed inside the housing 3 provided with the contact rod 6, and scale marks 41 are disposed on a piston rod of the cylinder 4 and a side wall of the contact rod 6.

Referring to fig. 3, an insertion column 61 inserted into the center roller 25 is fixedly connected to an end of the contact lever 6, and when the contact lever 6 abuts against the end of the center roller 25, the insertion column 61 can be inserted into the center roller 25. Chamfers 611 are respectively arranged at the ends of the piston rods of the inserting column 61 and the cylinder 4 close to the central roller 25, and the inserting column 61 and the cylinder 4 can be more accurately inserted into the central roller 25 by arranging the chamfers 611.

Referring to fig. 4, the positioning mechanism 5 includes the annular plate 51 that the slip cup joints on the outer wall of the piston rod of the cylinder 4, fixedly connected with two guide rods 52 that distribute from top to bottom on the lateral wall of the central roller 25 is kept away from to the annular plate 51, the other end of the guide rod 52 is inserted with the casing 3 in a sliding manner, the end part that is located inside the casing 3 at two guide rods 52 is fixedly connected with a limiting block 53 respectively, and the guide rod 52 can be avoided breaking away from the casing 3 by setting up the limiting block 53.

Referring to fig. 4 and 5, a plurality of insertion holes 521 are formed in a side wall of the upper guide bar 52 along a longitudinal direction of the guide bar 52, and an insertion module 54 inserted into the insertion holes 521 is formed in a side wall of the housing 3 above the guide bar 52. The plug assembly 54 includes a fixing plate 541 fixedly connected to a sidewall of the housing 3, a plug rod 542 penetrating through the fixing plate 541 and being connected to the plug hole 521, a mounting block 543 fixedly connected to a top of the plug rod 542, and a spring 544 having two ends respectively fixed to the fixing plate 541 and the mounting block 543 sleeved on an outer side of the plug rod 542.

Referring to fig. 1 and 3, the driving assembly 7 includes a rotating rod 71 located inside the housing 3 connected to the first main swing arm 22 and arranged along the length direction of the first main swing arm 22, one end of the rotating rod 71 is arranged to protrude from the housing 3, and a hand wheel 72 is fixedly connected to the end portion protruding from the housing 3. A gear 73 is fixedly fitted to the rotating lever 71 in the housing 3, a rack 74 is engaged below the gear 73, and one end of the rack 74 is fixed to the contact lever 6. A slide rail 75 for sliding the rack 74 is further fixedly connected to the inner bottom surface of the housing 3, and a roller 741 rolling along the slide rail 75 is attached to the lower surface of the rack 74.

Referring to fig. 3, the housing 3 is further fixedly connected with a locking assembly 8 for locking the abutting rod 6, the locking assembly 8 includes a pair of clamping plates 81 fixedly connected to the housing 3 and attached to the side walls of the abutting rod 6, and screws 82 abutting against the abutting rod 6 are disposed through the clamping plates 81.

When the central roller 25 needs to be installed, the annular plate 51 is firstly moved to one side close to the shell 3, then the cylinder 4 is controlled to extend, and one end of the central roller 25 is inserted on the piston rod of the cylinder 4; at this time, the rotating hand wheel 72 is rotated to drive the rotating rod 71 to rotate, and the rotating rod 71 can drive the gear 73 to rotate when rotating, so that the rack 74 and the abutting rod 6 are driven to move towards the central roller 25; when the inserting column 61 on the abutting rod 6 is inserted into the central roller 25, the central roller 25 can be driven to slide along the piston rod of the cylinder 4; the center roller 25 can be moved to a position intermediate the first main swing arm 22 and the second main swing arm 23 by observing the scale marks 41 on the abutting rod 6 and the cylinder 4 during the movement of the center roller 25.

Then the mounting block 543 is pulled to move towards the direction away from the fixing plate 541, when the plugging rod 542 is disengaged from the plugging hole 521, the ring plate 51 is moved to the position contacting with the end of the central roller 25, at this time, the mounting block 543 is loosened, the plugging rod 542 can be plugged into the corresponding plugging hole 521 of the guide rod 52 under the elastic force of the spring 544, at this time, the position of the ring plate 51 is fixed, and thus the side of the central roller 25 close to the ring plate 51 can be positioned; subsequently, the screw 82 is screwed so that the screw 82 abuts against the side wall of the abutment rod 6, thereby completing the locking of the abutment rod 6, and both sides of the center roller 25 are positioned, so that the center roller 25 cannot move in the axial direction, thereby completing the entire installation work of the center roller 25.

The implementation principle of the unwinding device of the packaging film in the embodiment of the application is as follows: when the unwinding device is used for unwinding the packaging film, the central roller 25 can rotate relative to the insertion column 61 and the air cylinder 4, the mounting film can be unwound at the moment, and the direction of the packaging film can be guided by the guide roller 26 in the unwinding process.

When the packaging film on the central roller 25 is used up and the central roller 25 needs to be replaced and installed, one end of the central roller 25 is firstly inserted into the piston rod of the cylinder 4, and then the hand wheel 72 is rotated to drive the insertion column 61 on the abutting rod 6 to be inserted into the other end of the central roller 25. At this time, the hand wheel 72 is continuously rotated to drive the center roller 25 to move along the cylinder 4, and when the center roller 25 moves to the position between the first main swing arm 22 and the second main swing arm 23, the insertion rod 542 is inserted into the insertion hole 521 of the guide rod 52 to position one end of the center roller 25; then, the screw 82 is screwed so that the screw 82 abuts against the side wall of the abutment rod 6, and at this time, the other end of the center roller 25 can be positioned, thereby completing the replacement and installation of the center roller 25.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an unwinding device of packaging film which characterized in that: the packaging film wrapping machine comprises a pair of supporting seats (1) which are arranged oppositely, the inner sides of the pair of supporting seats (1) are rotatably connected with a swing frame (2), and a central roller (25) which is used for winding a packaging film and is hollow in the middle is installed on the swing frame (2);

the swing frame (2) comprises a rotating shaft (21) arranged between a pair of supporting seats (1), one end of the rotating shaft (21) is fixedly connected with a first main swing arm (22), the other end of the rotating shaft is fixedly connected with a second main swing arm (23), and the first main swing arm (22) and the second main swing arm (23) are respectively and fixedly connected with a shell (3) opposite to the end part of the central roller (25);

a butting rod (6) corresponding to one end face of the central roller (25) and a driving assembly (7) for driving the butting rod (6) to move along the axial direction of the butting rod (6) are arranged in a shell (3) connected with the first main swing arm (22);

a cylinder (4) which is in sliding insertion connection with the other end of the central roller (25) is arranged in a shell (3) connected with the second main swing arm (23);

and scale marks (41) are respectively arranged on the piston rod of the cylinder (4) and the side wall of the abutting rod (6).

2. The unwinding device of packaging film of claim 1, characterized in that: drive assembly (7) including be located casing (3) and with butt pole (6) fixed connection's rack (74), the top meshing of rack (74) has gear (73), wear to be equipped with on gear (73) and rotate dwang (71) of being connected with casing (3), tip fixedly connected with hand wheel (72) that dwang (71) are located the casing (3) outside.

3. The unwinding device of packaging film of claim 2, characterized in that: the inside of the shell (3) is fixedly connected with a sliding rail (75) for the rack (74) to slide.

4. The unwinding device of packaging film of claim 3, characterized in that: a plurality of rollers (741) are mounted on the lower surface of the rack (74).

5. The unwinding device of packaging film of claim 1, characterized in that: the positioning mechanism (5) for positioning the center roller (25) is fixedly connected to the shell (3) connected with the second main swing arm (23), and the locking assembly (8) for limiting the abutting rod (6) to move is fixedly connected to the shell (3) connected with the first main swing arm (22).

6. The unwinding device of packaging film of claim 5, characterized in that: positioning mechanism (5) including slip cup joint annular plate (51) on cylinder (4) piston rod, the lateral wall fixedly connected with that central roller (25) was kept away from in annular plate (51) wears to locate inside guide bar (52) of casing (3), a plurality of spliced eye (521) have been seted up along the length direction of guide bar (52) on guide bar (52), fixedly connected with and spliced eye (521) grafting subassembly (54) each other on casing (3).

7. The unwinding device of packaging film of claim 6, characterized in that: the plug-in component (54) comprises a fixing plate (541) fixedly connected to the shell (3), and a plug-in rod (542) which is plugged with the plug-in hole (521) is arranged through the fixing plate (541).

8. The unwinding device of packaging film of claim 5, characterized in that: the locking assembly (8) comprises a pair of clamping plates (81) which are fixedly connected to the shell (3) and attached to the abutting rods (6), and screws (82) which are used for abutting the abutting rods (6) are arranged through the clamping plates (81).