Laminating film tensioning device of food packaging machine

Abstract

The utility model relates to the technical field of food packaging machines, in particular to a coating film tensioning device of a food packaging machine, which comprises a back plate, a coating film mounting roller, a fixed seat and a swing arm, the film covering mounting roller is mounted at the lower part of the front surface of the back plate; the fixed seat is fixed above the laminating mounting roller in front of the back plate through a screw; one end of the swing arm is connected with the fixing base in an inserted mode to form a rotating device, and the tensioning roller is fixed to the other end of the tensioning roller through a screw. The adjusting groove is formed in the middle of the swing arm, and the locking screw penetrates through the adjusting groove to fix the balancing weight to the swing arm. One end of the supporting plate is welded and fixed to one side of the first auxiliary guide roller through which the covering film passes; by improving the film tensioning device of the food packaging machine, the film tensioning device has the advantages that the tensioning force can be adjusted, butt joint of a new film and an old film is facilitated, and the replacement efficiency is improved, so that the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging machines, and more specifically, to a film-covering tensioning device of a food packaging machine. Background Art

[0002] Stretch film packaging machine, also known as stretch film vacuum packaging machine or laminating machine, is a highly automated packaging equipment. Its main function is to stretch the lower film as required, then put the package into the formed lower film cavity, then vacuum or vacuum inflate the package in the sealing box, and finally heat seal the upper film with the lower film in the sealing box, and divide the package by cross-cutting and longitudinal cutting.

[0003] The film tensioning device of the food packaging machine is a key component of the stretch film packaging machine, which is used to ensure that the film maintains appropriate tension and stability during the packaging process. The tensioning force of the existing film tensioning device is generally achieved by the gravity of the tensioning roller to tension the tensioning film. The tensioning force on the tensioning film is inconvenient to adjust, and the same tension is used for different types of food, which affects the stability of the packaging.

[0004] In view of this, research and improvement are conducted on the existing problems, and a film tensioning device for a food packaging machine is provided, aiming to achieve the purpose of solving the problems and improving the practical value through this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a film-laminating tensioning device for a food packaging machine, so as to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the utility model provides a film tensioning device for a food packaging machine, which is achieved by the following specific technical means:

[0007] A film tensioning device for a food packaging machine comprises: a back plate, a film installation roller, a fixing seat, a swing arm, a tensioning roller, a counterweight, an adjustment slot, a locking screw, an auxiliary guide roller, a support plate, a pressure strip, a pressure pad, a guide column, a pressing screw, and a fixing platform; the film installation roller is installed at the lower part of the front of the back plate; the fixing seat is fixed to the top of the film installation roller in front of the back plate by screws; one end of the swing arm is plugged into the fixing seat to form a rotating device, and the tensioning roller is fixed to the other end of the tensioning roller by screws; the adjustment slot is opened in the middle position of the swing arm, and the locking screw passes through the adjustment slot to hold the counterweight The block is fixed on the swing arm; the auxiliary guide rollers are installed in multiple places on the back plate; one end of the support plate is welded and fixed to the side of the first auxiliary guide roller through which the coating passes; the pressure strip is arranged between the support plate and the auxiliary guide roller, and the pressure pad is fixed to the side of the pressure strip close to the auxiliary guide roller, and the fixing platform is welded to the middle position of the side of the pressure strip close to the support plate; the clamping screw is connected to the support plate by threaded rotation, and the end of the clamping screw is clamped and fixed to the fixing platform as a rotating device; the guide column is symmetrically fixed at both ends of the pressure strip, and the guide column and the support plate are plug-in-type sliding devices.

[0008] As a further optimization of the technical solution, the adjustment groove of the film tensioning device of a food packaging machine of the utility model is a waist-shaped step groove.

[0009] As a further optimization of the technical solution, the pressure strip of the film tensioning device of a food packaging machine of the utility model is a rectangular strip structure, and the side of the pressure strip close to the auxiliary guide roller is arc-shaped.

[0010] As a further optimization of the technical solution, in the film-laminating tensioning device of a food packaging machine of the utility model, an annular groove which is clamped with the fixing platform is formed at the lower end of the clamping screw.

[0011] As a further optimization of the technical solution, in the film-laminating tensioning device of a food packaging machine of the utility model, the fixing platform is a circular tubular structure, and the upper end of the fixing platform is provided with an annular protrusion engaged with the clamping screw.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] 1. The adjusting groove of the utility model is a waist-shaped step groove, which is opened in the middle position of the swing arm, and the locking screw passes through the adjusting groove to fix the counterweight block on the swing arm. When the locking screw is loosened, the counterweight block moves along the adjusting groove. By changing the position of the counterweight block, the tensioning force of the tensioning roller is changed. It is suitable for the production of different products, has a simple structure, and is easy to adjust and use.

[0014] 2. The pressure strip of the utility model is arranged between the support plate and the auxiliary guide roller, and the fixing platform is welded to the middle position of the pressure strip close to the support plate. The clamping screw is connected to the support plate by threaded rotation, and the end of the clamping screw is clamped and fixed to the fixing platform to form a rotating device. The pressure strip is moved by turning the clamping screw to clamp the film, which facilitates the docking of the new film and the old film and improves the efficiency of film replacement.

[0015] 3. The utility model improves the film tensioning device of the food packaging machine, has the advantages of adjustable tensioning force, convenient docking of new and old films, and improved replacement efficiency, thereby effectively solving the problems and shortcomings of the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the swing arm structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the layering strip of the utility model;

[0021] Figure 5 It is a partial cross-sectional structural schematic diagram of the utility model.

[0022] In the figure: back plate 1, coating installation roller 2, fixing seat 3, swing arm 4, tensioning roller 5, counterweight block 6, adjustment slot 7, locking screw 8, auxiliary guide roller 9, support plate 10, pressure strip 11, pressure pad 12, guide column 13, clamping screw 14, fixing platform 15. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figures 1 to 5 The utility model provides a specific technical implementation scheme of a film tensioning device for a food packaging machine:

[0025] A film tensioning device for a food packaging machine, comprising: a back plate 1, a film installation roller 2, a fixing seat 3, a swing arm 4, a tensioning roller 5, a counterweight 6, an adjustment slot 7, a locking screw 8, an auxiliary guide roller 9, a support plate 10, a pressure strip 11, a pressure pad 12, a guide column 13, a clamping screw 14, and a fixing platform 15; the film installation roller 2 is installed at the lower part of the front of the back plate 1; the fixing seat 3 is fixed to the front of the back plate 1 above the film installation roller 2 by screws; one end of the swing arm 4 is plugged into the fixing seat 3 It is a rotating device, and the tensioning roller 5 is fixed to the other end of the tensioning roller 5 by a screw; the adjusting slot 7 is opened in the middle position of the swing arm 4, and the locking screw 8 passes through the adjusting slot 7 to fix the counterweight 6 on the swing arm 4; the adjusting slot 7 is a waist-shaped step slot, which is convenient for fixing the screw and moving the counterweight 6; loosen the locking screw 8, and the counterweight 6 moves along the adjusting slot 7. By changing the position of the counterweight 6, the tensioning force of the tensioning roller 5 is changed. It is suitable for the production of different products, has a simple structure, and is easy to adjust and use.

[0026] The auxiliary guide rollers 9 are installed at multiple locations on the back plate 1; one end of the support plate 10 is welded and fixed to the side of the first auxiliary guide roller 9 through which the film is coated; the pressure strip 11 is a rectangular strip structure, and the side of the pressure strip 11 close to the auxiliary guide roller 9 is arc-shaped; the pressure strip 11 is arranged between the support plate 10 and the auxiliary guide roller 9, and the pressure pad 12 is fixed to the side of the pressure strip 11 close to the auxiliary guide roller 9, and the fixing platform 15 is welded to the middle position of the side of the pressure strip 11 close to the support plate 10, and the pressure pad 12 plays a buffering role; the fixing platform 15 is a circular tubular structure, and the upper end of the fixing platform 15 is provided with There is an annular protrusion that is engaged with the clamping screw 14; the lower end of the clamping screw 14 is provided with an annular groove that is engaged with the fixing platform 15; the clamping screw 14 is connected to the support plate 10 by a threaded rotation, and the end of the clamping screw 14 is clamped and fixed to the fixing platform 15 to form a rotating device; the pressure strip 11 is moved by turning the clamping screw 14 to clamp the membrane, which facilitates the docking of the new membrane with the old membrane and improves the efficiency of membrane replacement; the guide column 13 is symmetrically fixed at both ends of the pressure strip 11, and the guide column 13 is plugged into the support plate 10 as a sliding device, and the guide column 13 plays a guiding role in the movement of the pressure strip 11.

[0027] Specific implementation steps:

[0028] When in use, fix the film on the film installation roller 2, pass the film through each auxiliary guide roller 9 and the tensioning roller 5 respectively, loosen the locking screw 8, adjust the position of the counterweight 6 in the adjustment groove 7, so that the tension force on the film is appropriate; when the film is used up, turn the clamping screw 14 to make the pressure strip 11 approach the auxiliary guide roller 9 until the pressure pad 12 fits with the film and the auxiliary guide roller 9 cannot rotate, install the new film on the film installation roller 2, connect the new and old films, loosen the clamping screw 14 until the pressure pad 12 leaves the film at a certain distance, and then it can be used.

[0029] To sum up: the film tensioning device of the food packaging machine has a waist-shaped step groove through the adjusting groove, the adjusting groove is opened in the middle position of the swing arm, and the locking screw passes through the adjusting groove to fix the counterweight block on the swing arm. The locking screw is loosened, and the counterweight block moves along the adjusting groove. By changing the position of the counterweight block, the tensioning force of the tensioning roller is changed, which is suitable for the production of different products. The structure is simple and the adjustment is convenient. The pressure strip is arranged between the support plate and the auxiliary guide roller, and the fixed platform is welded at the middle position of the pressure strip close to the support plate. The clamping screw is connected to the support plate by a threaded rotation method, and the end of the clamping screw is clamped and fixed to the fixed platform as a rotating device. The pressure strip is moved by turning the clamping screw to clamp the film, which is convenient for docking the new film with the old film and improving the film replacement efficiency. The utility model improves the film tensioning device of the food packaging machine, has the advantages of adjustable tensioning force, convenient docking of the new and old films, and improved replacement efficiency, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0030] 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 film tensioning device for a food packaging machine, comprising: A back plate (1), a coating installation roller (2), a fixed seat (3), a swing arm (4), a tensioning roller (5), a counterweight (6), an adjustment slot (7), a locking screw (8), an auxiliary guide roller (9), a support plate (10), a pressure strip (11), a pressure pad (12), a guide column (13), a clamping screw (14), and a fixing platform (15); characterized in that: the coating installation roller (2) is installed at the lower part of the front of the back plate (1); the fixed seat (3) is fixed to the top of the coating installation roller (2) in front of the back plate (1) by screws; one end of the swing arm (4) is plugged into the fixed seat (3) to form a rotating device, and the tensioning roller (5) is fixed to the other end of the tensioning roller (5) by screws; the adjustment slot (7) is opened in the middle position of the swing arm (4), and the locking screw (8) passes through the adjustment slot (7) to fix the counterweight (6 ) is fixed on the swing arm (4); the auxiliary guide roller (9) is installed at multiple locations on the back plate (1); one end of the support plate (10) is welded and fixed to the side of the first auxiliary guide roller (9) through which the coating passes; the pressure strip (11) is arranged between the support plate (10) and the auxiliary guide roller (9), and the pressure pad (12) is fixed to the side of the pressure strip (11) close to the auxiliary guide roller (9), and the fixed platform (15) is welded to the middle position of the side of the pressure strip (11) close to the support plate (10); the clamping screw (14) is connected to the support plate (10) by a threaded rotation method, and the end of the clamping screw (14) is clamped and fixed to the fixed platform (15) to form a rotating device; the guide column (13) is symmetrically fixed at both ends of the pressure strip (11), and the guide column (13) and the support plate (10) are plugged into a sliding device.

2. The film-laminating tensioning device of a food packaging machine according to claim 1, characterized in that: The adjusting groove (7) is a waist-shaped step groove.

3. The film-laminating tensioning device of a food packaging machine according to claim 1, characterized in that: The pressure strip (11) is a rectangular strip structure, and the side of the pressure strip (11) close to the auxiliary guide roller (9) is arc-shaped.

4. The film-laminating tensioning device of a food packaging machine according to claim 1, characterized in that: The lower end of the clamping screw (14) is provided with an annular groove which is clamped with the fixing platform (15).

5. The film-laminating tensioning device of a food packaging machine according to claim 1, characterized in that: The fixing platform (15) is a circular tubular structure, and the upper end of the fixing platform (15) is provided with an annular protrusion that is clamped with the clamping screw (14).

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