A vacuum packaging machine

Abstract

The present invention relates to a vacuum packaging machine, comprising a base, a vacuum cover and a seal. The base comprises a base body and a reinforcement rib group, the reinforcement rib group extending from a first side of the base body, and the base is obtained by integrally forming through a casting process; the vacuum cover is connected to the second side of the base body, and the vacuum cover is obtained by integrally forming through a casting process; the seal is arranged between the base and the vacuum cover, and the base, the vacuum cover and the seal together constitute a sealed accommodating space. The vacuum packaging machine in this embodiment reduces material costs and processing costs, because the base and the vacuum cover are obtained by integrally forming through an aluminum alloy casting process, which simplifies the processing process, reduces the processing time cycle, and reduces material waste. It is beneficial to improve the flatness of the bottom plate and the sealing of the overall structure. In addition, a seal is arranged between the base and the vacuum cover to further enhance the sealing between the base and the vacuum cover. The arrangement of the reinforcement rib group is beneficial to strengthening the structural strength of the base and the vacuum cover.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum packaging, in particular to a vacuum packaging machine. Background Art

[0002] Traditional vacuum packaging machines are mostly made of multiple pieces of stainless steel plates that are welded together, which has the following drawbacks: the raw material cost of stainless steel plates is relatively high; the plate processing is complex, requiring multiple steps such as cutting, punching, welding, polishing, shaping, and surface treatment. This results in a complex process, high processing costs, and a long processing cycle; there is a lot of waste during material processing, such as corners and holes; other accessories are required for welding or installation; the weight is heavy, making installation, transportation, and storage inconvenient. Furthermore, the use of stainless steel makes the vacuum packaging machine heavier overall, and the base plate and reinforcement ribs are connected by welding. Due to the thin thickness of the base plate, the high temperature generated during welding can cause the base plate to deform, resulting in poor flatness, which in turn affects the use of the vacuum packaging machine. At the same time, the welded base and vacuum lid have poor sealing, which may affect the vacuum packaging effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a vacuum packaging machine, which aims to solve the technical problems of existing vacuum packaging machines, such as relatively high raw material costs, high temperatures generated during welding that may cause deformation of the bottom plate, affecting the flatness of the bottom plate, and poor sealing.

[0004] In order to solve the above technical problems, a vacuum packaging machine is provided, comprising:

[0005] The base comprises a base body and a reinforcement rib group, wherein the reinforcement rib group extends from a first side of the base body, and the base is integrally formed by a casting process;

[0006] a vacuum cover connected to the second side of the seat body, wherein the vacuum cover is integrally formed by a casting process;

[0007] The sealing member is arranged between the base and the vacuum cover, and the base, the vacuum cover and the sealing member together form a sealed accommodating space.

[0008] Furthermore, the base also includes a mounting plate, which extends from the first side of the seat body. The width of the seat body is L, and the thickness of the mounting plate is D, wherein the ratio of D / L is in the range of [0.04, 0.1].

[0009] Furthermore, the vacuum packaging machine also includes a rotating shaft, a connecting rod and a vacuum tube. The mounting plate is provided with a first mounting hole and a second mounting hole. The rotating shaft is mounted on the base through the first mounting hole. The connecting rod is connected to the rotating shaft. The vacuum tube is mounted on the base through the second mounting hole.

[0010] Furthermore, the vacuum packaging machine also includes a fixed seat, an elastic member and a pull rod. The base also includes an extension portion extending from the seat body. The pull rod is rotatably mounted on the extension portion. The fixed seat is fixedly mounted on the rotating shaft. The elastic member is connected between the fixed seat and the pull rod.

[0011] Furthermore, the vacuum packaging machine further comprises a travel switch and a trigger block cooperating with the travel switch, the travel switch is mounted on the base, and the trigger block is connected to the rotating shaft.

[0012] Furthermore, the vacuum packaging machine further includes a control valve, which is arranged on the vacuum tube.

[0013] Furthermore, the vacuum packaging machine further comprises a bearing, wherein the bearing is mounted on the mounting plate and the bearing is nested and mounted on the rotating shaft.

[0014] Furthermore, the vacuum packaging machine also includes a heating assembly, which includes a heating component and a pressure rod. The heating component is placed on the first side of the seat body, and the pressure rod is rotatably connected to the heating component; the vacuum cover and the base are both made of aluminum alloy material.

[0015] Furthermore, the reinforcing rib group also includes a reinforcing column, a first reinforcing rib and a second reinforcing rib, the first reinforcing rib and the second reinforcing rib are respectively connected to the reinforcing column, the first reinforcing rib is extended along a first direction, the second reinforcing rib is extended along a second direction, and the first direction is perpendicular to the second direction.

[0016] Furthermore, a mounting groove is provided on the first side of the seat body, the sealing member is provided in the mounting groove, the sealing member includes a central groove and an opening groove, the opening groove is connected to the central groove, and the groove opening of the opening groove gradually increases in the first direction and away from the central groove, and the opening groove is provided on the side away from the bottom wall of the mounting groove.

[0017] The implementation of the present invention will have the following beneficial effects:

[0018] The vacuum packaging machine in this embodiment reduces material and processing costs because the base and vacuum cover are integrally formed through an aluminum alloy casting process, rather than being formed by welding together multiple pieces of stainless steel plates. In addition, by avoiding complex welding, polishing and other processes, the processing technology can be simplified, the processing time cycle can be reduced, and material waste can be reduced. On the other hand, the integrally formed base and vacuum cover are conducive to improving the flatness of the bottom plate and the sealing of the overall structure. In addition, a seal is provided between the base and the vacuum cover to further enhance the sealing between the base and the vacuum cover, thereby improving the use effect and performance of the vacuum packaging machine. In addition, the integrally formed reinforcing rib group provided on the base is conducive to strengthening the structural strength of the base and the vacuum cover, thereby extending the service life of the vacuum packaging machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a front view of the vacuum packaging machine according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic structural diagram of a vacuum packaging machine according to an embodiment of the present invention;

[0022] Figure 3 A cross-sectional view of a vacuum packaging machine according to an embodiment of the present invention;

[0023] Figure 4 for Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0024] Figure 5 A bottom view of the base according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a base according to an embodiment of the present invention;

[0026] Figure 7 This is a structural diagram of the base and heating component combination according to an embodiment of the present invention.

[0027] Wherein: 100, vacuum packaging machine; 101, accommodating space; 110, base; 111, base body; 1111, first side; 1112, second side; 1113, mounting groove; 112, reinforcing rib group; 1121, reinforcing column; 1122, first reinforcing rib; 1123, second reinforcing rib; 113, mounting plate; 1131, first mounting hole; 1132, second mounting hole; 114, extension portion; 115. Packing notch; 120. Vacuum cover; 130. Seal; 131. Center slot; 132. Opening slot; 140. Rotating shaft; 150. Connecting rod; 160. Vacuum tube; 170. Fixed seat; 180. Elastic member; 190. Pull rod; 200. Travel switch; 210. Trigger block; 220. Heating assembly; 221. Heating component; 222. Pressure rod; 230. Control valve; 240. Bearing. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please refer to Figure 1-Figure 7An embodiment of the present invention provides a vacuum packaging machine 100, comprising a base 110, a vacuum cover 120, and a sealing member 130. The base 110 comprises a base body 111 and a rib assembly 112, wherein the rib assembly 112 extends from a first side 1111 of the base body 111. The base 110 is integrally formed through a casting process. The vacuum cover 120 is connected to a second side 1112 of the base body 111. The vacuum cover 120 is integrally formed through a casting process. The sealing member 130 is disposed between the base 110 and the vacuum cover 120. The base 110, the vacuum cover 120, and the sealing member 130 together constitute a sealed accommodating space 101.

[0032] Please refer to Figure 1 、 Figure 2 and Figure 3 The vacuum packaging machine 100 in this embodiment reduces material costs and processing costs because the base 110 and the vacuum cover 120 are obtained by integrally forming through an aluminum alloy casting process, rather than by welding together multiple pieces of stainless steel plates. In addition, since complex welding, polishing and other processes are avoided, the processing process can be simplified, the processing time cycle is reduced, and material waste is reduced. On the other hand, the integrally formed base 110 and vacuum cover 120 are conducive to improving the flatness of the bottom plate and the sealing of the overall structure. In addition, a seal 130 is provided between the base 110 and the vacuum cover 120 to further enhance the sealing between the base 110 and the vacuum cover 120, thereby improving the use effect and performance of the vacuum packaging machine 100, and the integrally formed reinforcing rib group 112 provided on the base 110 is conducive to strengthening the structural strength of the base 110 and the vacuum cover 120, thereby extending the service life of the vacuum packaging machine 100.

[0033] Please refer to Figure 2 、 Figure 3 and Figure 5In one possible embodiment, the base 110 further includes a mounting plate 113, which extends from a first side 1111 of the base body 111. The width of the base body 111 is L, and the thickness of the mounting plate 113 is D, wherein the ratio of D / L is in the range of [0.04, 0.1]. For example, in a traditional process, the base 110 is obtained by bending and welding a sheet metal, that is, the thickness of the mounting plate 113 is equivalent to the thickness of the sheet metal, and the bearing 240 seat needs to be fixed on the mounting plate 113. The mounting plate 113 is used to install the rotating shaft 140, and its structural strength is not high. However, the mounting plate 113 of the present application is formed in one piece through a casting process, which can increase the thickness of the mounting plate 113, which is beneficial to strengthening the structural strength of the base 110. Specifically, in this embodiment, the D / L ratio is 0.05. Of course, in specific applications, the D / L ratio is not limited thereto. For example, as an alternative, the D / L ratio may also be 0.04, or 0.06, or 0.07, or 0.08, or 0.09, or 0.1.

[0034] Please refer to Figure 2 、 Figure 3 and Figure 6 In one possible embodiment, the vacuum packaging machine 100 further includes a rotating shaft 140, a connecting rod 150, and a vacuum tube 160. The mounting plate 113 is provided with a first mounting hole 1131 and a second mounting hole 1132. The rotating shaft 140 is mounted on the base 110 through the first mounting hole 1131. The connecting rod 150 is connected to the rotating shaft 140. The vacuum tube 160 is mounted on the base 110 through the second mounting hole 1132. Exemplarily, two second mounting holes 1132 are provided, one on each opposite side of the first mounting hole 1131. The vacuum tube 160 is connected to a vacuum pump, which is in communication with the accommodating space 101. The vacuum pump is used to evacuate the accommodating space 101. It is understood that two rotating shafts 140 and two connecting rods 150 are provided, both of which are connected to the vacuum cover 120. The connection of the vacuum cover 120 with two connecting rods 150 provides a more stable connection. The first mounting hole 1131 and the second mounting hole 1132 are both disposed on the mounting plate 113 , and the first mounting hole 1131 and the second mounting hole 1132 pass through the mounting plate 113 .

[0035] Please refer to Figure 1 、 Figure 2 and Figure 3In one possible embodiment, the vacuum packaging machine 100 further includes a fixed seat 170, an elastic member 180, and a pull rod 190. The base 110 further includes an extension 114 extending from the base body 111. The pull rod 190 is rotatably mounted on the extension 114. The fixed seat 170 is fixedly mounted on the rotating shaft 140. The elastic member 180 is connected between the fixed seat 170 and the pull rod 190. Illustratively, the elastic member 180 is a tension spring, with its ends connected between the fixed seat 170 and the pull rod 190. The elastic member 180 provides tension for the connection between the vacuum cover 120 and the base 110, forcing the vacuum cover 120 to press tightly against the sealing member 130, further enhancing the sealing of the packaging space 101. As an elastic material, the elastic member 180 acts as a buffer and a connection between the fixed seat 170 and the pull rod 190. It absorbs impact forces caused by mechanical movement or vibration, protects other components from damage, and ensures the stability of the device during operation.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, the vacuum packaging machine 100 further includes a limit switch 200 and a trigger block 210 that cooperates with the limit switch 200. The limit switch 200 is mounted on the base 110, and the trigger block 210 is connected to the rotating shaft 140. For example, the vacuum cover 120 is connected to the connecting rod 150. The base 110 is provided with two packaging slots 115, and the vacuum cover 120 is provided with one. When in use, the vacuum cover 120 covers one of the packaging slots 115 to form the accommodating space 101. The vacuum cover 120 can switch back and forth between the two packaging slots 115. During switching, the vacuum cover 120 drives the connecting rod 150 and the rotating shaft 140 to rotate. When the trigger block triggers the limit switch 200, it indicates that the vacuum cover 120 has been positioned and sealed with one of the packaging slots 115.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, the vacuum packaging machine 100 further includes a control valve 230, which is disposed on the vacuum tube 160. For example, the control valve 230 is used to control the flow of gas in the vacuum packaging machine 100. Specifically, the control valve 230 may be used to open or close the channel for gas to enter or exit, thereby regulating and controlling the pressure inside the vacuum packaging machine 100. During the vacuum packaging process, the control valve 230 can accurately manage the vacuum level within the packaging container, ensuring that the required vacuum level is achieved to achieve effective sealing and preservation. In addition, the control valve 230 can also allow air to re-enter the system when necessary, so as to balance the internal and external pressures after the vacuum packaging is completed, making it easier for users to open and remove vacuum-packed items.

[0038] Please refer to Figure 1 、 Figure 2 and Figure 3 In one possible embodiment, the vacuum packaging machine 100 further includes a bearing 240 , which is mounted on the mounting plate 113 and nested within the rotating shaft 140 . For example, the primary function of the bearing 240 is to transmit force and motion through rolling contact rather than sliding. This significantly reduces friction and wear, thereby extending the life of the equipment. The bearing 240 is mounted on the mounting plate 113 and nested within the rotating shaft 140, providing stability and support for the rotating shaft 140. This not only ensures accurate and smooth rotation of the rotating shaft 140, but also prevents mechanical failures caused by vibration or imbalance.

[0039] Please refer to Figure 1 、 Figure 2 and Figure 7 In one possible embodiment, the vacuum packaging machine 100 further includes a heating assembly 220, which includes a heating component 221 and a pressure rod 222. The heating component 221 is positioned on the first side 1111 of the base body 111, and the pressure rod 222 is rotatably connected to the heating component 221. The vacuum cover 120 and the base 110 are both made of aluminum alloy. To seal a bag, the vacuum cover 120 is opened, the pressure rod 222 is rotated away from the heating component 221, and the bag opening is positioned between the pressure rod 222 and the heating component 221. The pressure rod 222 then presses against the bag opening, sealing the vacuum cover 120 and the base 110. The accommodating space 101 is then evacuated. After evacuation, the heating component 221 is turned on to heat-seal the bag opening. Finally, the vacuum cover 120 is opened, and the sealed bag is removed. Aluminum alloy has relatively low raw material costs and is more economical than stainless steel. This helps reduce the overall production cost of the equipment. Due to the excellent processing properties of aluminum alloy, it can be integrally molded through a casting process, eliminating the complex process of joining and welding multiple pieces. This simplified manufacturing process not only reduces processing time, but also reduces wear and tear on processing equipment and maintenance costs. Aluminum alloy is lighter than stainless steel, which reduces the overall weight of the vacuum packaging machine 100, making it easier to install, transport, and store.

[0040] Please refer to Figure 5 and Figure 6In one possible embodiment, the rib group 112 further includes a reinforcing column 1121, a first reinforcing rib 1122, and a second reinforcing rib 1123. The first reinforcing rib 1122 and the second reinforcing rib 1123 are respectively connected to the reinforcing column 1121. The first reinforcing rib 1122 extends along a first direction, and the second reinforcing rib 1123 extends along a second direction, with the first direction and the second direction being perpendicular. For example, there are three first reinforcing ribs 1122 and two second reinforcing ribs 1123. That is, the first and second reinforcing ribs 1122 and 1123 are crisscrossed. The reinforcing column 1121 is located at the intersection of the first and second reinforcing ribs 1122 and 1123, and is used to strengthen the connection between the first and second reinforcing ribs 1122 and 1123. In this embodiment, the reinforcing column 1121 is cylindrical. The function of the rib group 112 is to strengthen the overall structure of the seat body on the one hand, and to help maintain the flatness of the surface of the seat body 111 on the other hand.

[0041] Please refer to Figure 3 and Figure 4 In one possible embodiment, a mounting groove 1113 is provided on the first side 1111 of the base body 111. A seal 130 is disposed within the mounting groove 1113. The seal 130 includes a central groove 131 and an open groove 132. The open groove 132 communicates with the central groove 131 and gradually widens in a first direction away from the central groove 131. The open groove 132 is located on a side facing away from the bottom wall of the mounting groove 1113. For example, the arrangement of the central groove 131 and the open groove 132 facilitates elastic deformation of the seal 130, thereby further improving the seal between the base 110 and the vacuum cover 120. The seal 130 is made of rubber, silicone, or other materials with excellent elasticity and pressure resistance. The provision of the seal 130 facilitates enhanced sealing between the base 110 and the vacuum cover 120, which is crucial for maintaining a vacuum state, thereby improving the performance and usability of the vacuum packaging machine 100. In addition, air and moisture are prevented from entering the packaging container, ensuring the freshness of the packaged contents and extending the shelf life. Specifically, in this embodiment, the central groove 131 is circular, and the opening groove 132 includes a flat surface and an inclined surface. The flat surface is tangential to the central groove 131, and the distance between the inclined surface and the flat surface gradually increases in the direction away from the central groove 131.

[0042] The working process of the vacuum packaging machine 100 of this application is as follows:

[0043] 1. Preparation: First, put the items to be packaged into the packaging bag. Then, place the packaging bag on the working platform of the vacuum packaging machine 100.

[0044] 2. Start the device: Turn on the power of the vacuum packaging machine 100 and start the control switch. The device will automatically perform initial detection and preheating.

[0045] 3. Vacuuming: The vacuum level is adjusted using control valve 230, activating the rotating shaft 140, connecting rod 150, and vacuum tube 160 system. The equipment begins vacuuming the interior of the packaging bag. During this process, the limit switch 200 and trigger block 210 work together to ensure the accuracy of the mechanical action.

[0046] 4. Heat Sealing: While vacuuming, the heating assembly 220 heats the packaging bag. The heating element 221 is positioned on the first side 1111 of the base body 111, and a pressure rod 222 is connected to it to ensure uniform heating. After heating is complete, the pressure rod 222 rotates and connects to the heating element 221, completing the heat seal.

[0047] 5. End of work: When the set vacuum degree and heating time are reached, the equipment will automatically stop the vacuuming and heating process. At this time, the seal 130 ensures a high vacuum state inside the packaging bag.

[0048] 6. Take out the finished product: Finally, the user can open the cover of the vacuum packaging machine 100 and take out the vacuum-sealed packaging bag. Due to the setting of the sealing member 130, the vacuum state in the packaging bag is effectively maintained.

[0049] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A vacuum packaging machine, characterized in that: include: The base comprises a base body and a reinforcement rib group, wherein the reinforcement rib group extends from a first side of the base body, and the base is integrally formed by a casting process; a vacuum cover connected to the second side of the seat body, wherein the vacuum cover is integrally formed by a casting process; a sealing member disposed between the base and the vacuum cover, wherein the base, the vacuum cover and the sealing member together constitute a sealed accommodating space; The base further includes a mounting plate extending from a first side of the base body. Assuming the width of the base body is L and the thickness of the mounting plate is D, wherein a ratio of D / L is in the range of [0.04, 0.1]; The vacuum packaging machine further includes a rotating shaft, a connecting rod and a vacuum tube, wherein the mounting plate is provided with a first mounting hole and a second mounting hole, the rotating shaft is mounted on the base through the first mounting hole, the connecting rod is connected to the rotating shaft, and the vacuum tube is mounted on the base through the second mounting hole; The vacuum packaging machine further comprises a fixing seat, an elastic member and a pull rod, the base further comprises an extension portion extending from the seat body, the pull rod is rotatably mounted on the extension portion, the fixing seat is fixedly mounted on the rotating shaft, and the elastic member is connected between the fixing seat and the pull rod; The vacuum packaging machine further includes a travel switch and a trigger block cooperating with the travel switch, wherein the travel switch is mounted on the base, and the trigger block is connected to the rotating shaft; A mounting groove is provided on the first side of the seat body, and the sealing member is provided in the mounting groove. The sealing member includes a central groove and an opening groove. The opening groove is connected to the central groove. In the direction along the first direction and away from the central groove, the groove opening of the opening groove gradually increases, and the opening groove is provided on the side away from the bottom wall of the mounting groove.

2. The vacuum packaging machine according to claim 1, characterized in that The vacuum packaging machine further includes a control valve, which is arranged on the vacuum tube.

3. The vacuum packaging machine according to claim 1, characterized in that The vacuum packaging machine further comprises a bearing, which is mounted on the mounting plate and nested on the rotating shaft.

4. The vacuum packaging machine according to claim 1, characterized in that The vacuum packaging machine further includes a heating assembly, which includes a heating component and a pressure rod. The heating component is placed on the first side of the seat body, and the pressure rod is rotatably connected to the heating component. The vacuum cover and the base are both made of aluminum alloy.

5. The vacuum packaging machine according to claim 1, characterized in that: The reinforcing rib group also includes a reinforcing column, a first reinforcing rib and a second reinforcing rib, the first reinforcing rib and the second reinforcing rib are respectively connected to the reinforcing column, the first reinforcing rib extends along a first direction, the second reinforcing rib extends along a second direction, and the first direction is perpendicular to the second direction.

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