Film tension control device of packaging machine

Abstract

The utility model belongs to the field of product packaging, and particularly relates to a packaging machine film tension control device which comprises a base and a connecting frame, and the base is fixedly connected to the bottom end of the connecting frame. The top of the base is rotationally connected with a pair of guide rollers and a tray, the middle of the tray is fixedly connected with an inserting rod, the bottom of the base is rotationally connected with a supporting arm, the end of the supporting arm is rotationally connected with an adjusting roller, and an adjusting assembly capable of enabling the supporting arm to rotate is arranged at the bottom of the supporting arm. The film barrel is placed above the tray, the inserting rod is inserted into the middle of the film barrel to be fixed, the tray is rotationally connected to the base and can rotate, then a film is pulled out to bypass a pair of guide rollers and an adjusting roller, then the distance between the adjusting roller and the guide rollers is adjusted by rotating the supporting arm, and therefore the tension degree of the film can be conveniently adjusted. Therefore, packaging can be carried out conveniently, and the thin film can be tightly wound and wrapped on the product conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to product packaging field, concretely is a packaging machine film tension control device. BACKGROUND

[0002] At present in the prior art, the packaging machine is mainly by rack, by motor drive chassis and film unwinding mechanism, product is placed on the chassis, relies on motor drive chassis rotation, packaging film reel is installed on the unwinding mechanism, the staff winds the film on the product surface, relies on the chassis to drive the product rotation to wind the packaging film and is wound, thereby completing the packaging of the product.

[0003] But in use, the packaging machine cannot control the tension of the packaging film, and the tension is too small, which will cause the packaging film to be difficult to tightly wind on the product, and the tension is too large, which will cause the packaging film to be stretched or even broken; therefore, aiming at the above problems, a packaging machine film tension control device is provided. SUMMARY

[0004] In order to make up for the deficiency of the prior art, solve at least one technical problem put forward in the background art, the utility model provides a packaging machine film tension control device.

[0005] The utility model discloses a packaging machine film tension control device, including base and connecting frame, the base is fixedly connected in the bottom of connecting frame, a pair of guide rollers is rotatably connected to the top of base, the top of base is rotatably connected with the tray, the middle part of tray is fixedly connected with the plug rod, the bottom of base is rotatably connected with the supporting arm, the end of supporting arm is rotatably connected with the adjusting roller, the bottom of supporting arm is equipped with the adjusting assembly that can make the supporting arm rotate.

[0006] Preferably, the adjusting assembly includes a worm gear and a worm, the base is fixedly connected with a support at the bottom, the worm gear is fixedly connected to the bottom of the supporting arm, the worm is rotatably connected to the support, the worm is located on the side of the worm gear, and the worm and the worm gear are meshed with each other.

[0007] Preferably, a scale bar is fixedly connected to the surface of the base, a pointer is fixedly connected to the corresponding position of the scale bar on the supporting arm, and the pointer is located on the side of the scale bar.

[0008] Preferably, a plurality of fixing rods are further included, a sliding groove is formed in the corresponding position of the plug rod and the fixing rod, and the fixing rod is inserted into the sliding groove and is slidably connected therewith.

[0009] Preferably, the middle part of the inserting rod is rotationally connected with a screw rod, the screw rod is threadedly connected with a moving seat, the moving seat is located between the plurality of fixing rods, the end of the moving seat is inserted into the sliding groove and is in sliding connection with the sliding groove, and the end of the moving seat is hingedly connected with a connecting rod, and the end of the connecting rod away from the moving seat is hingedly connected with the fixing rod.

[0010] Preferably, the top end of the fixing rod is obliquely arranged, and the fixing rod is arranged in four, and the four fixing rods are arranged in an annular array.

[0011] The utility model discloses the beneficial effect that:

[0012] 1. The utility model discloses a support arm, adjusting roller and guide roller are set up, when using, the base is installed on the rack of packaging machine through the connecting frame, the film cylinder is placed above the tray, the inserting rod is inserted in the middle part of the film cylinder and is fixed, the tray is rotationally connected on the base, and it can rotate, then the film is pulled out and passes a pair of guide rollers and adjusting rollers, after rotating the support arm, the distance between the adjusting roller and the guide roller is adjusted, so that the tension of the film can be conveniently adjusted, so that the packaging can be conveniently carried out, so that the film is tightly wound and covered on the product.

[0013] 2. The utility model discloses the fixed rod and sliding groove are set up, when using, rely on on the inserting rod and set up a plurality of sliding grooves, the fixed rod of sliding connection is inserted in the sliding groove, rely on the fixed rod and the inner wall of film cylinder and fit, so as to play the role of fixing the film cylinder, and the top end of the fixed rod is obliquely arranged, the inserting rod of different width is set up to fix the film cylinder of different diameter, so that the film cylinder can be conveniently installed. ACCURATE DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without paying creative labor under the premise.

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the base structure schematic diagram of the utility model;

[0017] Figure 3 It is the worm structure schematic diagram of the utility model;

[0018] Figure 4 It is the inserting rod structure schematic diagram of the utility model;

[0019] Figure 5 It is the structural schematic view of the fixed rod of the utility model.

[0020] In the figure: 11, base; 12, connecting frame; 13, tray; 14, plug rod; 15, guide roller; 16, support arm; 17, adjusting roller; 21, worm wheel; 22, worm; 31, scale bar; 32, pointer; 41, fixed rod; 42, sliding slot; 51, screw rod; 52, moving seat; 53, connecting rod; 7, hand wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The specific embodiments are given below.

[0023] Please refer to Figures 1-5 As shown in the figure, a packaging machine film tension control device, including base 11 and connecting frame 12, the base 11 is fixedly connected at the bottom end of connecting frame 12, a pair of guide rollers 15 is rotatably connected to the top of the base 11, the tray 13 is rotatably connected to the top of the base 11, the plug rod 14 is fixedly connected to the middle of the tray 13, the support arm 16 is rotatably connected to the bottom of the base 11, the adjusting roller 17 is rotatably connected to the end of the support arm 16, the bottom of the support arm 16 is provided with an adjusting assembly capable of rotating the support arm 16, the adjusting assembly includes worm wheel 21 and worm 22, the base 11 is fixedly connected with a support, the worm wheel 21 is fixedly connected to the bottom of the support arm 16, the worm 22 is rotatably connected to the support, the worm 22 is located on the side of the worm wheel 21, the worm 22 and the worm wheel 21 are meshed with each other.

[0024] In use, the base 11 is installed on the rack of the packaging machine through the connecting frame 12, the film cylinder is placed above the tray 13, the plug rod 14 is inserted into the middle of the film cylinder for fixation, the tray 13 is rotatably connected to the base 11, which can rotate, then the film is pulled out to pass through a pair of guide rollers 15 and adjusting rollers 17, then the distance between the adjusting roller 17 and the guide roller 15 is adjusted by rotating the support arm 16, so that the tension of the film can be conveniently adjusted, thereby facilitating packaging, so that the film is tightly wound and covered on the product.

[0025] In use, the bottom of the arm 16 is provided with a worm gear 21, which is driven to rotate by a rotating worm 22, so as to drive the arm 16 and the adjusting roller to move, thereby adjusting the tension of the film.

[0026] Further, as shown in Figures 1-5 the surface of the base 11 is fixed with a scale bar 31, the arm 16 is fixed with a pointer 32 at a position corresponding to the scale bar 31, and the pointer 32 is located on the side of the scale bar 31;

[0027] In use, the scale bar 31 is installed on the base 11, the arm 16 is fixed with the pointer 32 at a position corresponding to the scale bar 31, and the pointer 32 and the scale bar 31 are used to conveniently determine the moving angle of the adjusting roller 17 and conveniently adjust the tension of the packaging film.

[0028] Further, as shown in Figures 1-5 It also comprises a plurality of fixing rods 41, the plug rod 14 is provided with a sliding groove 42 at a position corresponding to the fixing rod 41, and the fixing rod 41 is inserted into the sliding groove 42 and is in sliding connection with the sliding groove 42;

[0029] In use, the sliding groove 42 is provided on the plug rod 14, the fixing rod 41 is inserted into and in sliding connection with the sliding groove 42, the fixing rod 41 is in close contact with the inner wall of the film cylinder, thereby fixing the film cylinder, the top end of the fixing rod 41 is inclined, different widths of the plug rod 14 are provided to fix film cylinders of different diameters, and the film cylinder can be conveniently installed.

[0030] Further, as shown in Figures 1-5 the middle part of the plug rod 14 is rotatably connected with a screw rod 51, the screw rod 51 is threadedly connected with a moving seat 52, the moving seat 52 is located between the fixing rods 41, the end of the moving seat 52 is inserted into the sliding groove 42 and is in sliding connection with the sliding groove 42, the end of the moving seat 52 is hingedly connected with a connecting rod 53, one end of the connecting rod 53 away from the moving seat 52 is hingedly connected with the fixing rod 41, and the top end of the fixing rod 41 is inclined, the fixing rod 41 is provided with four, and the four fixing rods 41 are arranged in an annular array;

[0031] In this embodiment, in use, the screw rod 51 is rotated, the screw rod 51 is threadedly connected with the moving seat 52, the moving seat 52 is driven to move up and down by the threads of the screw rod 51, the connecting rod 53 is hingedly connected between the moving seat 52 and the fixing rod 41, the fixing rod 41 is pushed out of the sliding groove 42 by the connecting rod 53, and the side of the fixing rod 41 abuts against the inner wall of the film cylinder, so as to adapt to film cylinders of different specifications.

[0032] Further, as shown inFigures 1-5 As shown, the end of the worm 22 is fixed with a hand wheel 7, in use, the hand wheel 7 can be conveniently set to rotate the worm 22.

[0033] The working principle is that, in use, the base 11 is installed on the rack of the packaging machine through the connecting frame 12, the film cylinder is placed above the tray 13, the inserting rod 14 is inserted in the middle of the film cylinder for fixation, the tray 13 is rotationally connected to the base 11, which can rotate, then the film is pulled out to pass a pair of guide rollers 15 and adjusting rollers 17, then the distance between the adjusting rollers 17 and the guide rollers 15 is adjusted by rotating the supporting arm 16, so that the tension of the film can be conveniently adjusted, thereby facilitating the packaging, so that the film is tightly wound on the product;

[0034] In use, the bottom of the supporting arm 16 is provided with a worm gear 21, the worm gear 21 is driven to rotate by rotating the worm 22, so that the supporting arm 16 and the adjusting roller move, thereby driving the supporting arm 16 to rotate, so as to adjust the tension of the film;

[0035] In use, the scale bar 31 is installed on the base 11, the pointer 32 corresponding to the position of the scale bar 31 is fixed on the supporting arm 16, the pointer 32 and the scale bar 31 are used to conveniently determine the moving angle of the adjusting roller 17, so as to conveniently adjust the tension of the packaging film, in use, a plurality of sliding grooves 42 are formed on the inserting rod 14, the fixed rod 41 is inserted into the sliding groove 42 in a sliding manner, the fixed rod 41 is attached to the inner wall of the film cylinder, so as to fix the film cylinder, the top end of the fixed rod 41 is inclined, the inserting rod 14 with different widths is used to fix the film cylinders with different diameters, so that the film cylinder can be conveniently installed, in use, the screw rod 51 is rotated, the screw rod 51 and the moving seat 52 are threadedly connected, the moving seat 52 moves up and down by the thread driving of the screw rod 51, the connecting rod 53 is hinged between the moving seat 52 and the fixed rod 41, the connecting rod 53 is used to push the fixed rod 41 to slide out of the sliding groove 42, so that the side surface of the fixed rod 41 abuts against the inner wall of the film cylinder, so as to adapt to the film cylinders with different specifications.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A packaging machine film tension control device, comprising a base (11) and a connecting frame (12), the base (11) is fixedly connected to the bottom end of the connecting frame (12); characterized in that: The top of the base (11) is rotatably connected with a pair of guide rollers (15), the top of the base (11) is rotatably connected with a tray (13), the middle of the tray (13) is fixedly connected with a inserting rod (14), the bottom of the base (11) is rotatably connected with a supporting arm (16), the end of the supporting arm (16) is rotatably connected with an adjusting roller (17), the bottom of the supporting arm (16) is provided with an adjusting assembly capable of rotating the supporting arm (16).

2. A packaging machine film tension control device according to claim 1, characterised in that: The adjusting assembly comprises a worm wheel (21) and a worm (22), the bottom of the base (11) is fixedly connected with a support, the worm wheel (21) is fixedly connected to the bottom of the supporting arm (16), the worm (22) is rotatably connected to the support, the worm (22) is located on the side of the worm wheel (21), and the worm (22) and the worm wheel (21) are meshed with each other.

3. A packaging machine film tension control apparatus according to claim 2, characterised in that: A scale bar (31) is fixedly connected to the surface of the base (11), a pointer (32) is fixedly connected to the corresponding position of the scale bar (31) and the supporting arm (16), and the pointer (32) is located on the side of the scale bar (31).

4. A packaging machine film tension control apparatus according to claim 3, characterised in that: A plurality of fixing rods (41) are further included, a sliding groove (42) is formed in the corresponding position of the inserting rod (14) and the fixing rod (41), and the fixing rod (41) is inserted into the sliding groove (42) and is in sliding connection with the sliding groove (42).

5. A packaging machine film tension control apparatus according to claim 4, characterised in that: A screw rod (51) is rotatably connected to the middle of the inserting rod (14), the screw rod (51) is threadedly connected with a moving seat (52), the moving seat (52) is located between the plurality of fixing rods (41), the end of the moving seat (52) is inserted into the sliding groove (42) and is in sliding connection with the sliding groove (42), the end of the moving seat (52) is hingedly connected with a connecting rod (53), and the end, away from the moving seat (52), of the connecting rod (53) is hingedly connected with the fixing rod (41).

6. A packaging machine film tension control apparatus according to claim 5, characterised in that: The top end of the fixing rod (41) is inclined, the fixing rod (41) is provided with four, and the four fixing rods (41) are arranged in an annular array.

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