Gas filling device for food packaging

Abstract

The utility model provides a gas filling device for food packaging, which relates to the technical field of food packaging and comprises a device body. The device body is provided with a fixed bearing plate in the left-right direction, a vertical plate with a left-right through threaded hole is arranged in front of the left end of the top end face of the fixed bearing plate, and a bearing plate with a left-right through threaded hole is arranged in the middle of the right side of the top end face of the fixed bearing plate. Two vertically-through threaded holes which are arranged left and right are formed in the front and back of the left side of the fixed bearing plate, and two bearing blocks which are arranged left and right in the front and back direction are arranged in front of the right end of the top end face of the fixed bearing plate; the packaging exhaust cylinder can be conveniently inserted into a packaging bag to extract impurity air in the packaging bag, and the problems that no evacuation measure is taken on a gas filling device, the food packaging quality is easily influenced by the air in the packaging bag, and an evacuation measure is inconvenient to add on the device to evacuate the air in the packaging bag are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food packaging, and in particular relates to a gas filling device for food packaging. Background Art

[0002] Food packaging, also known as food packaging, is an integral part of food commodities. It prevents food from being damaged by external factors such as biology, chemical and physical during the circulation process from leaving the factory to the hands of consumers. It has the function of maintaining the stable quality of the food itself. During the food packaging process, gas needs to be injected into the packaging bag, thereby extending the shelf life of the food packaging and preventing the food from being crushed.

[0003] Based on the above, the inventors found that the existing gas injection device for food packaging has the following shortcomings:

[0004] 1. There is no evacuation measure on the gas filling device, which may easily affect the packaging quality of food due to the air inside the packaging bag. It is not convenient to install evacuation measures on the device to evacuate the air inside the packaging bag;

[0005] 2. There is no quantitative measure on the gas filling device, which may easily affect the quality of food packaging due to too much or too little gas. It is not convenient to add quantitative measures to the device to quantitatively fill the filling gas. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a gas filling device for food packaging, so as to solve the problems that the existing gas filling device does not have any vacuuming measures, and the air inside the packaging bag may affect the food packaging quality, and it is inconvenient to install vacuuming measures on the device to vacuum the air inside the packaging bag; the gas filling device does not have any quantitative measures, and the food packaging quality may be affected by too much or too little gas, and it is inconvenient to install quantitative measures on the device to quantitatively fill the filling gas.

[0007] The purpose and effect of the gas injection device for food packaging of the utility model are achieved by the following specific technical means:

[0008] A gas filling device for food packaging comprises a device body; the device body is provided with a fixed supporting plate in the left and right directions, a vertical plate with left and right threaded holes is provided in front of the left end of the top end face of the fixed supporting plate, a supporting plate with left and right threaded holes is provided in the middle of the right side of the top end face of the fixed supporting plate, two threaded holes arranged left and right and penetrating up and down are provided at the front and back of the left side of the fixed supporting plate, two supporting blocks arranged left and right and in front and back directions are provided in front of the right end of the top end face of the fixed supporting plate, threaded blind holes are provided at the front and back of the top end face of the supporting block of the fixed supporting plate, a packaging vacuum cylinder in the left and right directions is installed inside the vertical plate of the fixed supporting plate, threads are provided on the outer circumference of the right side of the packaging vacuum cylinder, a regular hexagonal ring plate is provided on the outer circumference of the right end of the packaging vacuum cylinder, a limit adjustment rod in the left and right directions is installed inside the supporting plate of the fixed supporting plate, threads are provided on the outer circumference of the limit adjustment rod, a hemispherical head is provided on the left end face of the limit adjustment rod, and a regular hexagonal prism is provided on the right end face of the limit adjustment rod.

[0009] Furthermore, the right end of the piston rod of the injection piston rod is installed with a injection connecting block in the front-to-back direction by bolts, both ends of the injection connecting block are provided with insertion holes that penetrate left and right, the front and rear end surfaces of the injection connecting block are provided with threaded holes, and the left end of the extension rod of the injection electric cylinder is installed inside the insertion hole at the front end of the injection connecting block by bolts.

[0010] Furthermore, a left-right filling piston rod is placed inside the gas filling cylinder, a piston disc is provided at the left end of the filling piston rod, two left-right annular grooves are opened on the outer circumference of the piston disc of the filling piston rod, a sealing ring is embedded inside the annular groove of the filling piston rod, a left-right piston rod is arranged at the center of the right end surface of the piston disc of the filling piston rod, and a through hole that penetrates front and back is opened at the right end of the piston rod of the filling piston rod.

[0011] Furthermore, the left end of the gas outlet one-way valve is threadedly mounted with a gas discharge tube in left and right directions, the right end of the gas discharge tube is threadedly provided with a regular hexagonal ring plate on its outer circumference.

[0012] Furthermore, an air inlet check valve in the front-to-back direction is installed on the air inlet external threaded tube of the gas filling tube, and an air outlet check valve in the left-to-right direction is installed on the air outlet external threaded tube of the gas filling tube. A regular hexagonal ring plate is provided on the middle outer circumference of the air inlet check valve and the air outlet check valve, and annular grooves with threads are provided on the inner circumference of both ends of the air inlet check valve and the air outlet check valve.

[0013] Furthermore, a gas injection cylinder for left and right directions is installed by bolts in the middle of the left side of the top end face of the fixed bearing plate, and fixed plates with upper and lower through holes at both ends are arranged on the left and right sides of the bottom of the gas injection cylinder, an air inlet external threaded cylinder for front and back directions is arranged on the rear wall of the left end of the gas injection cylinder, and an air outlet external threaded cylinder for left and right directions is arranged in the center of the left end face of the gas injection cylinder.

[0014] Furthermore, a left-right perfusion electric cylinder is installed on the top between the bearing blocks of the fixed bearing plate by bolts, and a fixing plate with upper and lower through holes at both ends is provided on the left and right sides of the bottom of the perfusion electric cylinder, and a through hole that penetrates front and back is opened at the left end of the extension rod of the perfusion electric cylinder.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The packaging vacuum cylinder is conveniently installed on the fixed supporting plate through threads to connect to the external vacuum device, so that the packaging vacuum cylinder can be conveniently inserted into the packaging bag to extract the mixed air therein, thereby solving the problem that there is no vacuuming measure on the gas filling device, the air inside the packaging bag may affect the packaging quality of food, and it is inconvenient to add vacuuming measures on the device to vacuum the air inside the packaging bag.

[0017] The limit adjustment rod is conveniently installed on the fixed supporting plate through a thread, so that the movement of the filling piston rod can be limited by the limit adjustment rod to achieve quantitative filling, thereby solving the problem that there is no quantitative measure on the gas filling device, the quality of food packaging is easily affected by too much or too little gas, and it is inconvenient to add quantitative measures on the device to quantitatively fill the filling gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the disassembled structure of the utility model.

[0020] Figure 3 It is a cross-sectional schematic diagram of the gas filling cylinder of the utility model.

[0021] Figure 4 It is a top view schematic diagram of the fixed bearing plate of the utility model.

[0022] Figure 5 It is a rear view schematic diagram of a gas filling cylinder of the utility model.

[0023] Figure 6 It is a left side schematic diagram of the perfusion connection block of the utility model.

[0024] In the figure: 1. Device body; 2. Fixed bearing plate; 3. Packaged vacuum cylinder; 4. Limit adjustment rod; 5. Injection electric cylinder; 6. Gas injection cylinder; 7. Inlet check valve; 8. Outlet check valve; 9. Gas discharge cylinder; 10. Injection piston rod; 11. Injection connecting block. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0026] Embodiment 1:

[0027] As attached Figure 1 To Attachment Figure 6 As shown:

[0028] The utility model provides a gas filling device for food packaging, comprising a device body 1; the device body 1 is provided with a fixed bearing plate 2 in the left and right directions, which is convenient for carrying various components; a vertical plate with left and right threaded holes is provided in front of the left end of the top end surface of the fixed bearing plate 2, which is convenient for the packaging vacuum tube 3 to be installed by threading; a bearing plate with left and right threaded holes is provided in the middle of the right side of the top end surface of the fixed bearing plate 2, which is convenient for the limit adjustment rod 4 to be installed by threading; two left and right arranged threaded holes that penetrate up and down are provided in the front and back of the left side of the fixed bearing plate 2, which is convenient for the gas filling tube 6 to be installed by bolts; two bearing blocks arranged in the front and back directions are provided in front of the right end of the top end surface of the fixed bearing plate 2, which is convenient for carrying the filling electric cylinder 5; threaded blind holes are provided in the front and back of the top end surface of the bearing block of the fixed bearing plate 2, which is convenient for the filling electric cylinder 5 to be installed by bolts; a packaging vacuum tube 3 in the left and right directions is installed inside the vertical plate of the fixed bearing plate 2, which is convenient for inserting into the packaging bag to extract the mixed air therein, and the packaging vacuum tube 3 is provided with a thread on the right outer circumference, which is convenient for installation through the thread and connection with the external air extraction device. A regular hexagonal ring plate is provided on the outer circumference of the right end of the encapsulated air extraction cylinder 3, which is convenient for rotation and disassembly through tools. A limit adjustment rod 4 in the left and right directions is installed inside the bearing plate of the fixed bearing plate 2, which is convenient for limiting the right displacement of the injection piston rod 10. The outer circumference of the limit adjustment rod 4 is provided with a thread, which is convenient for installation through the thread. The left end face of the limit adjustment rod 4 is provided with a hemispherical head, which is convenient for contact with the right end face of the piston rod of the injection piston rod 10. The right end face of the limit adjustment rod 4 is provided with a regular hexagonal prism, which is convenient for rotation and adjustment through tools. The top between the bearing blocks of the fixed bearing plate 2 is provided with a left and right injection electric cylinder 5 through bolts, which is convenient for driving the injection piston rod 10 to move left and right. The left and right sides of the bottom of the injection electric cylinder 5 are provided with fixing plates with upper and lower through holes at both ends, which are convenient for installation through bolts. The left end of the extended rod of the injection electric cylinder 5 is provided with a through hole that penetrates front and back, which is convenient for the injection connection block 11 to be installed through bolts.

[0029] Among them, a gas filling cylinder 6 in the left and right directions is installed in the middle of the left side of the top end face of the fixed bearing plate 2 by bolts, which is convenient for temporarily storing the filled gas. Fixed plates with upper and lower through holes at both ends are arranged on the left and right sides of the bottom of the gas filling cylinder 6, which are convenient for installation by bolts. An inlet external threaded cylinder in the front and back directions is arranged on the rear wall of the left end of the gas filling cylinder 6, which is convenient for the inlet check valve 7 to be installed by thread. An outlet external threaded cylinder in the left and right directions is arranged in the center of the left end face of the gas filling cylinder 6, which is convenient for the outlet check valve 8 to be installed by thread. The inlet external threaded cylinder of the gas filling cylinder 6 is installed with an inlet check valve 7 in the front and back directions, which is convenient for only entering the gas filling cylinder 6. The left and right gas outlet check valves 8 are installed on the outer threaded tube of the gas filling tube 6, which is convenient for exhausting only to the outside of the gas filling tube 6. The outer circumferences in the middle of the inlet check valve 7 and the outlet check valve 8 are provided with regular hexagonal ring plates, which are convenient for rotating and disassembling by tools. The inner circumferences at both ends of the inlet check valve 7 and the outlet check valve 8 are provided with threaded annular grooves, which are convenient for threaded installation. The left end of the outlet check valve 8 is provided with a gas discharge tube 9 in the left and right directions through threads, which is convenient for inserting into the packaging bag for gas filling. The outer circumference of the right end of the gas discharge tube 9 is provided with threads, which is convenient for threaded installation. A regular hexagonal ring plate is arranged on the circumference, which is convenient for rotating and disassembling by tools. A left-right injection piston rod 10 is placed inside the gas injection cylinder 6, which is convenient for the left-right piston movement of the injection piston rod 10. A piston circular plate is arranged on the left end of the injection piston rod 10, which is convenient for the piston remote movement. Two left-right annular grooves are arranged on the outer circumference of the piston circular plate of the injection piston rod 10, which is convenient for the installation of the sealing ring. A sealing ring is embedded in the annular groove of the injection piston rod 10, which is convenient for strengthening the sealing effect. A left-right piston rod is arranged at the center of the right end face of the piston circular plate of the injection piston rod 10, which is convenient for connection with the injection connecting block 11. The activity of the injection piston rod 10 A through hole running through the front and back is provided at the right end of the plug rod, which is convenient for the installation of the injection connecting block 11 by bolts. The right end of the piston rod of the injection piston rod 10 is installed with the injection connecting block 11 in the front and rear directions by bolts, which is convenient for connection with the injection electric cylinder 5. Insertion holes running through the left and right are provided at both ends of the injection connecting block 11, which is convenient for the insertion of the injection electric cylinder 5 and the injection piston rod 10. Threaded holes are provided on the front and rear end surfaces of the injection connecting block 11, which is convenient for bolt installation. The left end of the extension rod of the injection electric cylinder 5 is installed inside the insertion hole at the front end of the injection connecting block 11 by bolts, which is convenient for the injection electric cylinder 5 to drive the injection piston rod 10 to move left and right through the injection connecting block 11.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present utility model, Figure 1When the device body 1 shown is in use, the rear end of the air intake check valve 7 is connected to the external air supply device through a pipeline, the right end of the packaging vacuum cylinder 3 is connected to the external vacuum device through a pipeline, and the filling electric cylinder 5 is electrically connected to the external control device, thereby performing normal food packaging gas filling; when the limit adjustment rod 4 is adjusted, the limit adjustment rod 4 is rotated by a tool to engage with the fixed bearing plate 2 threadedly, so that the limit adjustment rod 4 moves to the left through the threaded engagement. At this time, the rightward movement distance of the filling piston rod 10 becomes shorter, and the gas capacity inside the gas filling cylinder 6 becomes smaller. Conversely, the limit adjustment rod 4 moves to the right through the threaded engagement. At this time, the rightward movement distance of the filling piston rod 10 becomes longer, and the gas capacity inside the gas filling cylinder 6 becomes larger, thereby realizing the quantitative gas filling of the device body 1.

[0032] Embodiment 2:

[0033] The difference from Example 1 is that the regular hexagonal ring plate of the packaged vacuum cylinder 3 can also be set to a regular heptagonal ring plate, so that the packaged vacuum cylinder 3 can only be rotated by a special tool that cooperates with the regular heptagonal ring plate, preventing non-staff from rotating and disassembling the packaged vacuum cylinder 3.

[0034] Embodiment three:

[0035] The difference from the first embodiment is that the regular hexagonal prism of the limit adjustment rod 4 can also be set as a regular heptagonal prism, so that the limit adjustment rod 4 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the limit adjustment rod 4.

Claims

1. A gas filling device for food packaging, characterized in that: The device body (1) comprises a fixed bearing plate (2), a vertical plate with threaded holes passing through left and right sides is arranged in front of the left end of the top end surface of the fixed bearing plate (2), a bearing plate with threaded holes passing through left and right sides is arranged in the middle of the right end surface of the top end surface of the fixed bearing plate (2), two threaded holes arranged in left and right sides and passing through up and down are opened at the front and back of the left side of the fixed bearing plate (2), two bearing blocks arranged in left and right sides and in front and back directions are arranged in front of the right end of the top end surface of the fixed bearing plate (2), and the fixed bearing plate (2) is provided with a plurality of threaded holes passing through the top and back sides of the fixed bearing plate (2). Threaded blind holes are provided at the front and rear ends of the top end surface of the bearing block, a sealed vacuum cylinder (3) is installed inside the vertical plate of the fixed bearing plate (2), a thread is provided on the right outer circumference of the sealed vacuum cylinder (3), a regular hexagonal ring plate is provided on the right outer circumference of the sealed vacuum cylinder (3), a limit adjustment rod (4) is installed inside the bearing plate of the fixed bearing plate (2), a thread is provided on the outer circumference of the limit adjustment rod (4), a hemispherical head is provided on the left end surface of the limit adjustment rod (4), and a regular hexagonal prism is provided on the right end surface of the limit adjustment rod (4).

2. A gas injection device for food packaging as claimed in claim 1, characterized in that: An injection electric cylinder (5) is mounted on the top between the bearing blocks of the fixed bearing plate (2) by means of bolts, and fixing plates with upper and lower through holes at both ends are arranged on the left and right sides of the bottom of the injection electric cylinder (5), and a through hole that penetrates front and back is opened at the left end of the extension rod of the injection electric cylinder (5).

3. A gas injection device for food packaging as claimed in claim 2, characterized in that: A gas filling cylinder (6) is installed in the middle of the left side of the top end surface of the fixed bearing plate (2) by means of bolts. The left and right sides of the bottom of the gas filling cylinder (6) are both provided with fixing plates with upper and lower through holes at both ends. An air inlet external thread cylinder in the front-to-back direction is provided on the rear wall of the left end of the gas filling cylinder (6). An air outlet external thread cylinder in the left-to-right direction is provided at the center of the left end surface of the gas filling cylinder (6).

4. A gas injection device for food packaging as claimed in claim 3, characterized in that: An inlet check valve (7) is installed on the inlet external threaded cylinder of the gas filling cylinder (6), and an outlet check valve (8) is installed on the outlet external threaded cylinder of the gas filling cylinder (6). Regular hexagonal ring plates are provided on the middle outer circumferences of the inlet check valve (7) and the outlet check valve (8), and threaded annular grooves are provided on the inner circumferences of both ends of the inlet check valve (7) and the outlet check valve (8).

5. A gas injection device for food packaging as claimed in claim 4, characterized in that: The left end of the gas outlet one-way valve (8) is threadedly mounted with a gas outlet tube (9), the right end of the gas outlet tube (9) is provided with a threaded outer circumference, and the right end of the gas outlet tube (9) is provided with a regular hexagonal ring plate on the outer circumference.

6. A gas injection device for food packaging as claimed in claim 4, characterized in that: A filling piston rod (10) is placed inside the gas filling cylinder (6), a piston disc is arranged at the left end of the filling piston rod (10), two annular grooves arranged left and right are opened on the outer circumference of the piston disc of the filling piston rod (10), a sealing ring is embedded in the annular groove of the filling piston rod (10), a piston rod in the left and right direction is arranged at the center of the right end surface of the piston disc of the filling piston rod (10), and a through hole penetrating from front to back is opened at the right end of the piston rod of the filling piston rod (10).

7. A gas injection device for food packaging as claimed in claim 6, characterized in that: The right end of the piston rod of the injection piston rod (10) is bolted with an injection connection block (11), both ends of the injection connection block (11) are provided with insertion holes that penetrate left and right, the front and rear end surfaces of the injection connection block (11) are provided with threaded holes, and the left end of the extension rod of the injection electric cylinder (5) is bolted inside the insertion hole at the front end of the injection connection block (11).

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