Vacuum sealing machine with precise positioning telescopic flow guide

Abstract

The utility model provides a vacuum sealing machine with accurate positioning telescopic flow guide spare, include: main body and the machine cover of configuration on main body, be provided with the cover on main body, the cavity is formed with cover and main body, the telescopic flow guide mechanism and circuit board are provided in the cavity, the limit switch group is provided to the circuit board in the side near telescopic flow guide mechanism, telescopic flow guide mechanism is configured to switch between first position, second position and third position, in first position, telescopic flow guide mechanism is in first limit switch, in second position, telescopic flow guide mechanism is in second limit switch, in third position, telescopic flow guide mechanism is in third limit switch, for stretching into vacuum bag and with gas to main body, the utility model discloses through the setting of limit switch, can effectively promote the accuracy of flow guide plate movement, has simplified the structure of vacuum sealing machine, has reduced control difficulty, and has improved the sealing effect of vacuum bag.

Description

Technical Field

[0001] This utility model relates to the field of vacuum machine technology, and in particular to a vacuum sealing machine with a precision positioning telescopic guide. Background Technology

[0002] A vacuum sealer is a device used to seal food, medicine, and other items. It works by removing air from the packaging, creating a low-oxygen environment that helps extend the shelf life of the goods and prevents oxidation and bacterial growth. Vacuum sealers are frequently used in homes, restaurants, and the food processing industry to maintain food freshness and extend its shelf life.

[0003] Existing vacuum sealers use an extraction port within the vacuum chamber to remove gas from vacuum bags and achieve vacuum sealing. However, in practice, the sealing ring around the vacuum chamber fits too tightly, blocking the air passage and affecting the efficiency of the extraction port. To improve gas extraction, a telescopic guide plate is incorporated into the main unit. However, existing telescopic guide plates have difficulty controlling their movement distance and cannot stop at precise positions. This inability to control the guide plate's position makes it difficult to guide the gas from the vacuum bag into the vacuum chamber, affecting the vacuum sealing effect and increasing the difficulty of controlling the vacuum sealer. Utility Model Content

[0004] This invention provides a vacuum sealing machine with a precision positioning telescopic guide, which can effectively solve the above problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a vacuum sealing machine with a precision positioning telescopic guide, comprising: a main body and a cover disposed on the main body.

[0007] The main body is equipped with a cover, and the cover and the main body form a cavity. The cavity is equipped with a telescopic flow guiding mechanism and a circuit board. The circuit board is provided with a limit switch group on the side near the telescopic flow guiding mechanism. The limit switch group includes a first limit switch, a second limit switch, and a third limit switch. The telescopic flow guiding mechanism is configured to switch between a first position, a second position, and a third position. In the first position, the telescopic flow guiding mechanism is in the first limit switch position; in the second position, the telescopic flow guiding mechanism is in the second limit switch position; and in the third position, the telescopic flow guiding mechanism is in the third limit switch position, for extending into the vacuum bag and guiding gas to the main body.

[0008] As a further improvement, the telescopic flow guiding mechanism is provided with a flow guiding plate. The flow guiding plate has multiple air guiding channels at its first end, which are used to guide the gas in the vacuum bag into the main body. The flow guiding plate is connected to a slider at its second end. The slider has a sensing part formed on the side corresponding to the limit switch, and the slider is connected to a transmission rod.

[0009] As a further improvement, the main body has a lower chamber, and the cover has an opening on the side near the lower chamber.

[0010] As a further improvement, the lower chamber is provided with multiple expansion plates on the side near the opening, and multiple air extraction devices are also provided in the lower chamber, the air extraction devices including air extraction ports and vacuum pumps.

[0011] As a further improvement, the telescopic guide mechanism is also provided with a housing, which includes a lower housing and an upper housing, and the lower housing is provided with multiple slide rails.

[0012] As a further improvement, the transmission rod is connected to a transmission assembly at the end away from the slider. The transmission assembly includes a driving wheel and a driven wheel. The driven wheel is connected to the transmission rod, and the driven wheel is connected to the driving wheel. The driving wheel is connected to a motor, and the motor is electrically connected to the output terminal of the circuit board.

[0013] As a further improvement, a spring is provided between the guide plate and the slider.

[0014] As a further improvement, the length of the guide plate is defined as A, and the length of the air guide channel is defined as B, then B is between 1 / 3A and 1 / 2A.

[0015] The beneficial effects of this utility model are:

[0016] This invention features a telescopic flow guiding mechanism, allowing the flow guide plate to extend into the vacuum bag and guide the gas from the bag into the vacuum chamber via a gas guiding channel on the flow guide plate. This avoids the gas path blockage problem caused by overly tight sealing rings in traditional designs, significantly improving pumping efficiency. It also simplifies the number of vacuum pumps required, optimizes the overall structure of the vacuum sealing machine, and reduces production costs and maintenance difficulty. Limit switches precisely control the movement of the flow guide plate, preventing gas guiding failure due to positional deviations and improving the stability of the mechanism. A spring between the flow guide plate and the slider ensures that the flow guide plate moves with the flip cover when the vacuum sealing machine is closed, preventing the flow guide plate from being bent. By controlling the ratio of the flow guide plate length to the gas guiding channel length, the gas guiding channel effectively guides the gas from the vacuum bag into the vacuum chamber. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional view of the overall structure of a vacuum sealing machine with a precision positioning telescopic guide component according to this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of a vacuum sealing machine with a precision positioning telescopic guide component in use, according to this utility model. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of a vacuum sealing machine with a precision positioning telescopic guide component in use, according to this utility model. Figure 2 .

[0021] Figure 4 This is a schematic diagram of the structure of a vacuum sealing machine with a precision positioning telescopic guide component in use, according to this utility model. Figure 3 .

[0022] Figure 5 This is a schematic diagram of the internal structure of the main body of a vacuum sealing machine with a precision positioning telescopic guide component according to this utility model.

[0023] Figure 6 This is a schematic diagram of the telescopic flow guiding mechanism of a vacuum sealing machine with a precision positioning telescopic flow guiding component, according to this utility model. Figure 1 .

[0024] Figure 7 This is a schematic diagram of the telescopic flow guiding mechanism of a vacuum sealing machine with a precision positioning telescopic flow guiding component, according to this utility model. Figure 2 .

[0025] In the diagram: 1-Main body, 11-Cover, 111-Opening, 2-Cover, 3-Telescopic guide mechanism, 31-Outer shell, 311-Lower shell, 312-Upper shell, 32-Motor, 33-Transmission assembly, 331-Driving wheel, 332-Driven wheel, 34-Slide rail, 35-Transmission rod, 36-Slider, 361-Sensing part, 37-Guide plate, 38-Spring, 4-Circuit board, 41-First limit switch, 42-Second limit switch, 43-Third limit switch. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Reference Figure 1-4 As shown, a vacuum sealing machine with a precision positioning telescopic guide includes: a main body 1 and a cover 2 disposed on the main body 1.

[0029] The main body 1 is equipped with a cover 11, which forms a cavity with the main body 1. The cavity is equipped with a telescopic flow guide mechanism 3 and a circuit board 4. The circuit board 4 is equipped with a limit switch group on the side near the telescopic flow guide mechanism 3. The limit switch group includes a first limit switch 41, a second limit switch 42, and a third limit switch 43. The telescopic flow guide mechanism 3 is configured to switch between a first position, a second position, and a third position. In the first position, the telescopic flow guide mechanism 3 is at the first limit switch 41. In the second position, the telescopic flow guide mechanism 3 is at the second limit switch 42. In the third position, the telescopic flow guide mechanism 3 is at the third limit switch 43. It is used to extend into the vacuum bag and guide the gas to the main body 1. By setting the telescopic flow guide mechanism 3, the flow guide plate 37 can extend into the vacuum bag and guide the gas in the vacuum bag to the vacuum chamber of the vacuum sealing machine through the gas guide channel set on the flow guide plate 37, avoiding the problem of gas path blockage caused by the sealing ring being too tight in the traditional design.

[0030] Furthermore, a lower chamber is formed on the main body 1, and a heating component is provided near the lower chamber; an upper chamber is formed on the cover 2 corresponding to the lower chamber, and a pressure strip is provided near the upper chamber. The pressure strip is provided corresponding to the heating component, and sealing rings are provided around both the upper and lower chambers to improve the airtightness of the vacuum chamber when closed. The cover 2 can be operated between an open state and a closed state. In the closed state, the upper and lower chambers form a sealed space, i.e., a vacuum chamber, and the pressure strip and the heating component abut against each other. In the open state, the upper chamber moves away from the lower chamber.

[0031] A cover 11 is formed on the main body 1, and the cover 11 and the main body 1 form a cavity. The cavity is equipped with a telescopic flow guiding mechanism 3 and a circuit board 4. The output end of the circuit board 4 is electrically connected to the control end of the vacuum pump, the heating component, and the telescopic flow guiding mechanism 3. The cover 11 has an opening 111 on the side wall near the lower chamber. The lower chamber has multiple expansion plates on the side near the opening 111. The expansion plates are used to keep the opening of the vacuum bag open, so that the flow guiding plate 37 can be inserted into the vacuum bag. The lower chamber is also equipped with multiple air extraction ports. The air extraction ports are connected to the vacuum pump through pipelines. The gas in the vacuum bag is guided into the vacuum chamber through the air guiding channel on the flow guiding plate 37, and the vacuum pump draws the gas out of the vacuum chamber through the air extraction ports, so that the vacuum chamber enters a negative pressure state and the vacuum bag enters a vacuum state, thereby improving the sealing effect of the vacuum bag.

[0032] Furthermore, referring to Figure 5-7As shown, the telescopic flow guiding mechanism 3 is provided with a flow guiding plate 37. The flow guiding plate 37 has multiple air guiding channels at its first end. The air guiding channels are used to guide gas into the lower chamber 13. In this embodiment, the air guiding channels are multiple parallel grooves formed on the surface of the flow guiding plate 37. In order to improve the pumping efficiency, air guiding channels are provided on both the upper and lower surfaces of the flow guiding plate 37. The air guiding channels are used to connect the vacuum bag and the vacuum chamber. The length of the flow guiding plate 37 is defined as A, and the length of the air guiding channel is defined as B. Then B is between 1 / 3A and 1 / 2A. By controlling the length of the air guiding channel, it is ensured that the air guiding channel 331 can guide the gas in the vacuum bag to the vacuum chamber, avoiding the situation where the gas path is blocked, while ensuring the structural strength of the flow guiding plate 37. To prevent the guide plate 37 from breaking during operation due to excessive length of the air guide channel, and to effectively reduce the thickness of the guide plate 37 by embedding the air guide channel on the guide plate 37, the sealing ring is prevented from deforming due to excessive thickness of the guide plate 37 during long-term use, thus affecting the sealing effect of the sealing ring. Furthermore, to avoid the above problems, a relief groove can be provided on the sealing ring corresponding to the guide plate 37. When the vacuum sealing machine is in the closed state, the relief groove in the upper chamber and the relief groove in the lower chamber 13 form a through hole for the guide plate 37 to pass through. When the guide plate 37 passes through the through hole, the sealing ring will fit against the guide plate 37 to prevent gas in the vacuum chamber from escaping and affecting the airtightness of the vacuum chamber.

[0033] A slider 36 is connected to the second end of the guide plate 37. A sensing part 361 is formed on one side of the slider 36 corresponding to the limit switch 41. A transmission rod 35 is connected to the slider 36. A transmission assembly 33 is connected to the end of the transmission rod 35 away from the slider 36. The transmission assembly 33 includes a driving wheel 331 and a driven wheel 332. The driven wheel 332 is connected to the transmission rod 35 and is connected to the driving wheel 331. The transmission assembly 33 can be a gear transmission or a pulley transmission. A gear transmission can better control the extension and retraction of the guide plate 37. In this embodiment, a gear transmission is preferably provided. The drive assembly, with drive wheel 331 and driven wheel 332, achieves transmission through the meshing of their teeth. Drive wheel 331 is connected to motor 32, which is electrically connected to the output of circuit board 4. The telescopic guide mechanism 3 is configured to switch between a first position and a second position. In the third position, guide plate 37 extends from opening 111 under the drive of slider 36, and through the third limit switch 43 on circuit board 4, guide plate 37 extends into the vacuum bag, placing the opening of the air guide channel above the heating assembly. When the vacuum sealing machine executes the evacuation command, it can evacuate the air from the bag. The body is guided into the vacuum chamber; in the second position, the guide plate 37 is removed from the vacuum bag by the slider 36, and the guide plate 37 is retracted into the vacuum chamber by the second limit switch 42 on the circuit board 4, which makes it easier for users to shorten the extension time of the guide plate 37 when sealing items in batches, thus improving the sealing efficiency; in the first position, the guide plate 37 is placed in the cavity by the first limit switch 41 on the circuit board 4, which protects the guide plate 37. In this embodiment, the circuit board 4 is provided with three sets of limit switches 41, namely the first limit switch 41, the second limit switch 42, the third limit switch 43, the fourth limit switch 44, the fifth limit switch 45, the sixth limit switch 46, the seventh limit switch 47, the eleventh limit switch 48, the eleventh limit switch 49, the eleventh limit switch 41 ...2, the eleventh limit switch 41, the eleventh limit switch 42, the eleventh limit switch 43, the eleventh limit switch 44, the eleventh limit switch 45, the eleventh limit switch 46, the eleventh limit switch 47, the eleventh limit switch 48, the eleventh limit switch 49, the eleventh limit switch 41, the eleventh limit switch 41, the eleventh limit switch 49, the eleventh limit switch 41, the eleventh limit switch 41, the The first limit switch 42 and the second limit switch 43 are located at the same positions. The third limit switch 41 corresponds to the position where the guide plate 37 is above the heating component. The second limit switch 42 corresponds to the position where the guide plate 37 is above the vacuum chamber. The first limit switch 41 corresponds to the position where the guide plate 37 is inside the chamber. Therefore, the preset positions can be adjusted according to actual usage needs. For example, if a batch food preservation operation is performed, the guide plate 37 can be retracted to the vacuum chamber position to shorten the distance the guide plate 37 moves and improve work efficiency. If the main body is to be cleaned, the guide plate 37 can be retracted into the cover 11.

[0034] Furthermore, the telescopic flow guiding mechanism 3 is provided with a housing 31, which includes an upper housing 312 and a lower housing 311. The upper housing 312 and the lower housing 311 are fixedly connected by bolts or adhesive. The outer wall of the lower housing 311 is provided with a connection hole for connecting to the main body 1. Multiple slide rails 34 are provided inside the lower housing 311. A slider 36 is slidably disposed on the slide rail 321. The slider 36 is used to drive the extension and retraction of the flow guiding plate 37. The first end of the slider 36 is connected to the flow guiding plate 37. A spring 38 is provided between the flow guiding plate 37 and the slider 36. When closed, the guide plate 37 moves downwards as the cover 2 rotates, preventing the guide plate 37 from being bent and affecting its normal use. The second end of the slider 36 is connected to a transmission rod 35, which drives the slider 36 to move. One end of the transmission rod 35 is connected to a bushing, which is connected to a transmission assembly 33. The other end of the transmission assembly 33 is connected to a motor 32. The slider 36 has a sensing part 361 on one side of the corresponding limit switch group. The movement position of the guide plate 37 is controlled by the cooperation between the sensing part 361 and the limit switch group.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum sealing machine with a precision positioning telescopic guide, comprising: The main body (1) and the cover (2) disposed on the main body (1) are characterized in that, The main body (1) is provided with a cover (11), and the cover (11) and the main body (1) form a cavity. The cavity is provided with a telescopic flow guide mechanism (3) and a circuit board (4). The circuit board (4) is provided with a limit switch group on the side near the telescopic flow guide mechanism (3). The limit switch group includes: a first limit switch (41), a second limit switch (42) and a third limit switch (43). The telescopic flow guiding mechanism (3) is configured to switch between a first position, a second position and a third position. In the first position, the telescopic flow guiding mechanism (3) is in the first limit switch (41). In the second position, the telescopic flow guiding mechanism (3) is in the second limit switch (42). In the third position, the telescopic flow guiding mechanism (3) is in the third limit switch (43) for extending into the vacuum bag to be sealed and guiding the gas to the main body (1).

2. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 1, characterized in that, The telescopic flow guiding mechanism (3) is provided with a flow guiding plate (37). The flow guiding plate (37) has multiple air guiding channels at the first end. The air guiding channels are used to guide the gas in the vacuum bag into the main body (1). The flow guiding plate (37) is connected to a slider (36) at the second end. The slider (36) has a sensing part (361) on the side corresponding to the limit switch (41). The slider (36) is connected to a transmission rod (35).

3. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 1, characterized in that, The main body (1) has a lower chamber, and the cover (11) has an opening (111) on the side near the lower chamber.

4. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 3, characterized in that, The lower chamber is provided with multiple expansion plates on the side near the opening (111), and multiple air extraction devices are also provided in the lower chamber, including air extraction ports and vacuum pumps.

5. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 2, characterized in that, The telescopic guide mechanism (3) is also provided with a housing (31), which includes a lower housing (311) and an upper housing (312). The lower housing (311) is provided with a plurality of slide rails (34).

6. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 5, characterized in that, The transmission rod (35) is connected to a transmission assembly (33) at the end away from the slider (36). The transmission assembly (33) includes a drive wheel (331) and a driven wheel (332). The driven wheel (332) is connected to the transmission rod (35). The driven wheel (332) is connected to the drive wheel (331). The drive wheel (331) is connected to a motor (32). The motor (32) is electrically connected to the output end of the circuit board (4).

7. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 6, characterized in that, A spring (38) is provided between the guide plate (37) and the slider (36).

8. The vacuum sealing machine with a precision positioning telescopic guide as described in claim 2, characterized in that, Define the length of the guide plate (37) as A and the length of the air guide channel as B, then B is between 1 / 3A and 1 / 2A.

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