Nitrogen charging machine for food packaging

Abstract

The utility model provides a food packaging nitrogen filling machine, which relates to the technical field of food packaging, and comprises a workbench and a press-fit cover, a nitrogen filling piece is fixed on the top of the workbench, a corner cutting fixing piece is fixed on one side of the workbench, an installation piece is fixed on one side of the corner cutting fixing piece, and a circular groove is arranged on one side of the installation piece. A food packaging nitrogen filling machine adopting a clamping column mounting mode is efficient mechanical equipment and is used for injecting pure nitrogen into food packaging, in the operation process, a heating cover plate is a key component of the machine and achieves sealed packaging by conducting hot melting sealing on a packaging film, however, in the design of an existing food packaging nitrogen filling machine, the heating cover plate cannot be used for heating the packaging film, and the packaging film cannot be sealed. In the prior art, some safety risks exist, and particularly, the machines usually lack enough safety protection measures, and if an operator does not keep mind to approach hands or clothes to a working area of a heating cover plate on a busy production line, the machines cannot be shut down in time due to lack of a safety sensing device, so that serious safety accidents are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a food packaging nitrogen filling machine. Background Art

[0002] Food packaging nitrogen filling machine is a device used to fill nitrogen into food during packaging to preserve freshness and extend shelf life. Food packaging nitrogen filling machine is a device specially used in the food industry to provide products with an oxygen-free or low-oxygen storage environment to prevent food oxidation, deterioration and inhibit the growth of microorganisms. This equipment usually fills high-purity nitrogen into the package during the food packaging process to replace the air inside the package. The development prospects of food packaging nitrogen filling machine are very broad. As consumers have higher and higher requirements for food safety and quality, the demand for nitrogen-filled packaging continues to grow.

[0003] In the prior art, a food packaging nitrogen filling machine is a highly efficient mechanical device used to inject pure nitrogen into food packaging to remove oxygen, extend the shelf life of food, and maintain the original flavor and freshness of food. During operation, the heated cover is a key component of the machine, which achieves sealed packaging by hot-melt sealing of the packaging film. However, there are some safety risks in the design of existing food packaging nitrogen filling machines. In particular, these machines usually lack sufficient safety protection measures. On a busy production line, if the operator inadvertently puts his hands or clothes close to the working area of ​​the heated cover, the machine will not be able to stop in time due to the lack of a safety sensing device, resulting in serious safety accidents. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a food packaging nitrogen filling machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a food packaging nitrogen filling machine, comprising a workbench and a pressing cover, a nitrogen filling part is fixed on the top of the workbench, a corner cutting fixing part is fixed on one side of the workbench, a mounting part is fixed on one side of the corner cutting fixing part, a circular groove is opened on one side of the mounting part, a rotating shaft is fixed on one side of the workbench, a connecting rod is rotatably connected to the circumference of the rotating shaft, one end of the connecting rod is rotatably connected to one side of the workbench, a rotating tooth is fixed on one end of the rotating shaft, the surface of the rotating tooth is slidably connected to the inner wall of the circular groove, an operating handle is fixed on the top of the mounting part, a parallel circular path is opened on the inner wall of the mounting part, and a vertical path is opened on the inner wall of the mounting part. The inner wall of the parallel circular path is slidably connected with a sliding column, one end of the sliding column is fixed with a clamping column, the other end of the sliding column is fixed with a parallel spring, the middle part of the sliding column is provided with an inclined groove, the inner wall of the vertical path is slidably connected with a pressing column, the middle part of the pressing column is provided with an inclined hole, the surface of the inclined groove is slidably connected with the inclined hole, the top of the pressing column is fixed with a top spring, the top of the pressing column is fixed with a pressing column member, the circumference of the pressing column member is slidably connected with the inner wall of the operating handle, in the prior art, a food packaging nitrogen filling machine is a highly efficient mechanical equipment used to inject pure nitrogen into food packaging to exclude oxygen, extend the shelf life of food, and maintain the original flavor and freshness of food. During operation, the nitrogen filling machine is used to fill the food packaging with nitrogen. The hot cover is a key component of the machine, which achieves sealed packaging by hot-melt sealing of the packaging film. However, there are some safety risks in the design of existing food packaging nitrogen filling machines. In particular, these machines usually lack sufficient safety protection measures. On a busy production line, if the operator inadvertently puts his hands or clothes close to the working area of ​​the heated cover, the machine will not be able to stop in time due to the lack of a safety sensing device, resulting in serious safety accidents. In response to such problems, the utility model adopts the method of installing a clamping column to solve the problem. When the staff needs to move the pressing cover, they need to hold the operating handle with both hands and press the pressing column to push the pressing column downward to stretch the top spring. At the same time, the inclined hole and the inclined groove in the middle of the sliding column slip, pushing the sliding column to move to the side of the parallel spring, compressing the parallel spring, so that the clamping column is separated from the tooth groove of the rotating tooth, so that the rotating shaft and the connecting rod can rotate normally. Due to the installation of two left and right column parts, the staff must use both hands to operate the equipment to prevent the staff from accidentally placing their hands in the working area. The two are in different directions up and down, which makes the staff very awkward when operating, and forces them to stay focused during operation. Once the staff lets go during the operation, the top spring and the parallel spring quickly release the elastic potential energy, allowing the clamping column to re-enter the tooth groove of the rotating tooth and immediately stop the movement of the pressing cover, thereby achieving the effect of improving production safety.

[0006] Preferably, a top sink groove is provided on the top of the operating handle, and a pressing cap is fixed on the top of the pressing column. In the prior art, once the staff presses too hard, causing the pressing column to move downward excessively, the stretching length of the top spring will exceed the limit stretching length, causing the component to lose its effectiveness, resulting in the equipment being unable to operate normally and causing the service life of the equipment to be reduced. To solve this problem, the utility model adopts the method of installing a pressing cap to achieve a solution, so that when the user presses the pressing cap, the pressing cap increases the contact area with the finger and reduces the pressure. When the pressing cap drops to the top sink groove, it is restricted by the bottom surface of the inner wall of the top sink groove and cannot continue to move downward, thereby preventing excessive pressure, thereby improving user experience and increasing the service life of the equipment.

[0007] Preferably, L-shaped extension plates are fixed at both ends of the workbench. By setting the L-shaped extension plates higher than the workers' knees, it is prevented that the workers fall forward due to misoperation or put their hands on the working area, thereby improving production safety.

[0008] Preferably, semicircular stops are fixed on both sides of the workbench, so that the staff operating the equipment can maintain a certain distance from the equipment, thereby improving production safety.

[0009] Preferably, the top edge of the L-shaped extension plate is configured as a rounded edge to prevent scratches on staff and improve user experience.

[0010] Preferably, the linear array on the side of the operating handle is provided with anti-slip grooves to increase the friction between the component and the palm of the staff, making it easier for the staff to exert force and improving the user experience.

[0011] Preferably, the diameter of the top sinking groove is larger than the diameter of the pressing cap, so as to prevent the inner wall of the top sinking groove from rubbing against the peripheral surface of the pressing cap and thus prevent the resetting from being hindered, thereby improving the smoothness of the use of the equipment.

[0012] Beneficial Effects

[0013] 1. In the prior art, a food packaging nitrogen filling machine is an efficient mechanical device used to inject pure nitrogen into food packaging to exclude oxygen, extend the shelf life of food, and maintain the original flavor and freshness of food. During operation, the heated cover is a key component of the machine, which achieves sealed packaging by hot-melt sealing of the packaging film. However, there are some safety risks in the design of existing food packaging nitrogen filling machines. In particular, these machines usually lack sufficient safety protection measures. On a busy production line, if the operator inadvertently puts his hands or clothes close to the working area of ​​the heated cover, the machine will not be able to stop in time due to the lack of a safety sensing device, resulting in serious safety accidents. In response to such problems, the utility model adopts the method of installing a clamping column to solve the problem, which realizes that when the worker When the operator needs to move the pressing cover, he needs to hold the operating handle with both hands and press the pressing column to push the pressing column downward, stretching the top spring. At the same time, the inclined hole and the inclined groove in the middle of the sliding column slide, pushing the sliding column to the side of the parallel spring, compressing the parallel spring, so that the clamping column is separated from the tooth groove of the rotating tooth, so that the rotating shaft and the connecting rod can rotate normally. Due to the installation of two left and right pressing column parts, the operator must use both hands to operate the equipment to prevent the operator from placing his hands in the working area by mistake. The two hands are in different directions up and down, which makes the operator very awkward when operating, and forces the operator to stay focused during operation. Once the operator lets go during the operation, the top spring and the parallel spring quickly release the elastic potential energy, causing the clamping column to re-enter the tooth groove of the rotating tooth, immediately stopping the movement of the pressing cover, thereby improving production safety.

[0014] 2. In the prior art, once the staff presses too hard, causing the column to move downward excessively, the top spring stretching length will exceed the limit stretching length, causing the component to lose its effectiveness, resulting in the equipment being unable to operate normally and causing the service life of the equipment to be reduced. To address this problem, the utility model solves it by installing a press cap, so that when the user presses the press cap, the press cap increases the contact area with the finger and reduces the pressure. When the press cap drops to the top sink groove, it is restricted by the bottom surface of the inner wall of the top sink groove and cannot continue to move downward, preventing excessive pressure, thereby improving user experience and increasing the service life of the equipment.

[0015] 3. By setting an L-shaped extension plate higher than the workers' knees, it can prevent workers from falling forward or putting their hands in the work area due to accidental operation, thereby improving production safety. The top edge of the L-shaped extension plate is set as a rounded edge to prevent scratches on the workers and improve user experience. The semi-circular block allows workers operating the equipment to keep a certain distance from the equipment, thereby improving production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2It is a three-dimensional structural schematic diagram of the rotating gear of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the pressing cap of the utility model;

[0019] Figure 4 It is a cross-sectional view of the mounting member of the utility model.

[0020] Legend:

[0021] 1. Workbench; 101. Pressing cover; 102. Rotating shaft; 103. Nitrogen charging part; 104. Connecting rod; 2. Rotating gear; 201. Angle cutting fixing part; 202. Mounting part; 203. Circular groove; 204. Parallel circular path; 205. Vertical path; 206. Pressing column; 207. Pressing column part; 208. Top spring; 209. Sliding column; 2010. Clamping column; 2011. Inclined groove; 2012. Parallel spring; 3. Operating handle; 301. Anti-slip groove; 302. Pressing cap; 303. Top sinking groove; 4. L-shaped extension plate; 401. Rounded edge; 402. Semicircular stop. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0025] Reference Figure 1-4A food packaging nitrogen filling machine comprises a workbench 1 and a pressing cover 101, a nitrogen filling part 103 is fixed on the top of the workbench 1, a corner cutting fixing part 201 is fixed on one side of the workbench 1, a mounting part 202 is fixed on one side of the corner cutting fixing part 201, a circular groove 203 is provided on one side of the mounting part 202, a rotating shaft 102 is fixed on one side of the workbench 1, a connecting rod 104 is rotatably connected to the circumference of the rotating shaft 102, one end of the connecting rod 104 is rotatably connected to one side of the workbench 1, a rotating tooth 2 is fixed on one end of the rotating shaft 102, the surface of the rotating tooth 2 is slidably connected to the inner wall of the circular groove 203, an operating handle 3 is fixed on the top of the mounting part 202, a parallel circular path 204 is provided on the inner wall of the mounting part 202, a vertical path 205 is provided on the inner wall of the mounting part 202, and the inner wall of the parallel circular path 204 slides A slide column 209 is connected, a clamping column 2010 is fixed at one end of the slide column 209, a parallel spring 2012 is fixed at the other end of the slide column 209, an inclined groove 2011 is opened in the middle of the slide column 209, a pressure column 206 is slidably connected to the inner wall of the vertical channel 205, an inclined hole is opened in the middle of the pressure column 206, the surface of the inclined groove 2011 is slidably connected to the inclined hole, a top spring 208 is fixed on the top of the pressure column 206, a pressing column 207 is fixed on the top of the pressure column 206, and the circumference of the pressing column 207 is slidably connected to the inner wall of the operating handle 3. The food packaging nitrogen filling machine is an efficient mechanical equipment used to inject pure nitrogen into food packaging to exclude oxygen, extend the shelf life of food, and maintain the original flavor and freshness of food. During operation, the heating cover is The key component of the machine is that it realizes sealed packaging by hot-melt sealing of the packaging film. However, there are some safety risks in the design of existing food packaging nitrogen filling machines. In particular, these machines usually lack sufficient safety protection measures. On a busy production line, if the operator inadvertently puts his hands or clothes close to the working area of ​​the heated cover, the machine will not be able to stop in time due to the lack of a safety sensor, resulting in a serious safety accident. The problem is solved by installing a clamping column 2010, which realizes that when the staff needs to move the pressing cover 101, they need to hold the operating handle 3 with both hands and press the pressing column 207 to push the pressing column 206 downward to stretch the top spring 208. At the same time, the inclined hole and the inclined groove 2011 in the middle of the sliding column 209 are released. The sliding movement occurs, pushing the sliding column 209 to move toward the parallel spring 2012, compressing the parallel spring 2012, so that the clamping column 2010 is separated from the tooth groove of the rotating tooth 2, allowing the rotating shaft 102 to rotate normally with the connecting rod 104. Since the left and right pressing column members 207 are installed, the staff must use both hands to operate the equipment to prevent the staff from accidentally placing their hands on the working area. The two hands are in different directions up and down, which makes the staff very awkward when operating, and is forced to stay focused during operation. Once the staff lets go during the operation, the top spring 208 and the parallel spring 2012 quickly release the elastic potential energy, so that the clamping column 2010 re-enters the tooth groove of the rotating tooth 2, and immediately stops the movement of the pressing cover 101, thereby achieving the effect of improving production safety.

[0026] A top sinking groove 303 is provided on the top of the operating handle 3, and a pressing cap 302 is fixed on the top of the pressing column 207. Once the staff presses too hard, the pressing column 207 moves downward excessively, which will cause the top spring 208 to stretch beyond the limit stretching length, causing the component to lose its effectiveness, resulting in the device being unable to operate normally and reducing the service life of the device. This problem is solved by installing a pressing cap 302, so that when the user presses the pressing cap 302, the pressing cap 302 increases the contact area with the finger and reduces the pressure. When the pressing cap 302 drops to the top sinking groove 303, it is restricted by the bottom surface of the inner wall of the top sinking groove 303 and cannot continue to move downward, preventing the pressing from being excessive, thereby improving the user experience and the service life of the device. An anti-skid groove 301 is provided in a linear array on the side of the operating handle 3 to increase the friction between the component and the palm of the staff, facilitate the staff to exert force, and improve the user experience. The diameter of the top sinking groove 303 is larger than the diameter of the pressing cap 302, which prevents the friction between the inner wall of the top sinking groove 303 and the peripheral surface of the pressing cap 302, thereby preventing the reset from being hindered and improving the smoothness of the equipment use. L-shaped extension plates 4 are fixed at both ends of the workbench 1. By setting the L-shaped extension plates 4 higher than the workers' knees, it is prevented that the workers fall forward due to misoperation or put their hands on the working area, thereby improving production safety. The top edge of the L-shaped extension plate 4 is set as a rounded edge 401 to prevent scratches on the workers and improve user experience. Semicircular stops 402 are fixed on both sides of the workbench 1 to keep the workers who operate the equipment at a certain distance from the equipment, thereby improving production safety.

[0027] Once the staff lets go during the operation, the top spring 208 and the parallel spring 2012 quickly release the elastic potential energy, so that the clamping column 2010 re-enters the tooth groove of the rotating tooth 2, and the pressing cover 101 is stopped immediately.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A food packaging nitrogen filling machine, comprising a workbench (1) and a press-fit cover (101), wherein a nitrogen filling component (103) is fixed on the top of the workbench (1), characterized in that: A corner cutting fixture (201) is fixed on one side of the workbench (1), a mounting member (202) is fixed on one side of the corner cutting fixture (201), a circular groove (203) is provided on one side of the mounting member (202), a rotating shaft (102) is fixed on one side of the workbench (1), a connecting rod (104) is rotatably connected to the circumference of the rotating shaft (102), one end of the connecting rod (104) is rotatably connected to one side of the workbench (1), a rotating tooth (2) is fixed on one end of the rotating shaft (102), a surface of the rotating tooth (2) is slidably connected to the inner wall of the circular groove (203), an operating handle (3) is fixed on the top of the mounting member (202), a parallel circular path (204) is provided on the inner wall of the mounting member (202), and a connecting rod (104) is provided on the inner wall of the mounting member (202). A vertical path (205) is provided, and a sliding column (209) is slidably connected to the inner wall of the parallel circular path (204), a clamping column (2010) is fixed to one end of the sliding column (209), a parallel spring (2012) is fixed to the other end of the sliding column (209), an inclined groove (2011) is provided in the middle of the sliding column (209), a pressing column (206) is slidably connected to the inner wall of the vertical path (205), an inclined hole is provided in the middle of the pressing column (206), the surface of the inclined groove (2011) is slidably connected to the inclined hole, a top spring (208) is fixed to the top of the pressing column (206), a pressing column member (207) is fixed to the top of the pressing column (206), and the circumferential surface of the pressing column member (207) is slidably connected to the inner wall of the operating handle (3).

2. A food packaging nitrogen filling machine according to claim 1, characterized in that: A top sink groove (303) is provided on the top of the operating handle (3), and a pressing cap (302) is fixed on the top of the pressing column (207).

3. A food packaging nitrogen filling machine according to claim 1, characterized in that: L-shaped extension plates (4) are fixed to both ends of the workbench (1).

4. A food packaging nitrogen filling machine according to claim 1, characterized in that: Semicircular stops (402) are fixed on both sides of the workbench (1).

5. A food packaging nitrogen filling machine according to claim 3, characterized in that: The top edge of the L-shaped extension plate (4) is configured as a rounded edge (401).

6. A food packaging nitrogen filling machine according to claim 1, characterized in that: The side of the operating handle (3) is provided with anti-slip grooves (301) in a linear array.

7. A food packaging nitrogen filling machine according to claim 2, characterized in that: The diameter of the top sinking groove (303) is greater than the diameter of the pressing cap (302).

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