Vacuumizing device for packing stuffed wheaten food

Abstract

The utility model discloses a vacuum-pumping device for packing stuffed wheaten food, which comprises a vacuum bag, a sealing device is arranged on one side of the vacuum bag, the sealing device comprises a communicating pipe, a connecting pipe, a flowing groove, a fixing plate, a communicating hole, a communicating groove, an input groove, a reset plate, a reset spring, a center rod and a connecting plate, and the flowing groove and the input groove are arranged on the side wall of the center rod. The communication hole is formed in the fixing plate, the communication groove is formed in the inner side of the center rod, the reset spring is connected with the reset plate and the connecting plate, a driving device is arranged on the outer side of the center rod and comprises a linkage rod, a driven wheel, an inner gear, a control sleeve and a linkage sleeve, the linkage rod is connected with the linkage sleeve through threads, and the driven wheel is connected to the outer side of the linkage sleeve. The inner gear is installed on the inner side of the control sleeve, a positioning mechanism is arranged on one side of the control sleeve and comprises a movable spring, a positioning rod, a locking sleeve, a limiting plate and an annular groove, and the sealing device has the advantages of being rapid in sealing, reliable in leakage prevention and stable in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the vacuum pumping technology field for the stuffed food packaging, more specifically, it relates to a vacuum pumping device for the stuffed food packaging. BACKGROUND

[0002] In the field of food packaging, the timeliness, reliability and stability of vacuum sealing are key factors to ensure product quality. However, the vacuum pumping device for the stuffed food packaging on the current market still has many technical defects in actual application, which not only affects the packaging efficiency, but also may lead to the shortening of product shelf life and the decline of product quality.

[0003] The primary problem is that the sealing operation is complicated and inefficient. The sealing method in the prior art has significant defects: first, the traditional threaded connection sealing method is complicated to operate; second, the threaded connection process of the sealing cover and the connecting pipe takes a long time; third, the complicated threaded connection operation is easy to cause worker fatigue. The shortcomings of this traditional sealing method not only reduce the packaging efficiency, but also increase the labor intensity of the operator, affecting the production progress.

[0004] More importantly, there are major defects in the timeliness of sealing. The spring return sealing device used in the prior art has obvious design problems: first, the spring return sealing requires a certain response time; second, air backflow is easy to occur during the disassembly of the air pump; third, the backflow of air will affect the sealing effect of vacuum packaging. The shortcomings of this design not only affect the quality of vacuum packaging, but also may lead to the shortening of product shelf life, reducing the reliability of packaging.

[0005] Most importantly, the sealing structure stability is seriously insufficient. Although some equipment has improved the design through active sealing mechanism, there are still obvious defects in actual application: first, the simple active sealing structure is difficult to adapt to the transportation environment; second, the vibration of the equipment during movement is easy to cause the structure to loosen; third, the slight displacement of the structure will affect the sealing effect. The shortcomings of this structure design not only affect the reliability of sealing, but also may cause the product to deteriorate due to poor sealing. INVENTION CONTENTS

[0006] (I) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides a vacuum pumping device for the stuffed food packaging to solve the technical problems mentioned in the background art.

[0008] (II) Technical solutions

[0009] To achieve the above object, the utility model provides following technical scheme: a kind of vacuumizing device for packing stuffed food, including vacuum bag, the vacuum bag side is equipped with sealing device, the sealing device includes communicating pipe, connecting pipe, flow tank, fixed plate, communicating hole, communicating groove, input slot, reset plate, reset spring, center rod and connecting plate, the communicating pipe is arranged in connecting pipe side, the connecting pipe is installed in vacuum bag side, the flow tank and input slot are opened in center rod side wall, the fixed plate is fixedly installed in communicating pipe inboard, the communicating hole is opened in fixed plate, the communicating groove is opened in center rod inboard, the reset plate is slidably arranged in connecting pipe inboard, the reset spring both ends are connected with reset plate and connecting plate respectively, the center rod is fixedly arranged in fixed plate side, the connecting pipe is fixedly connected with center rod by connecting plate, the center rod outside is provided with driving device, the driving device includes linkage rod, driven wheel, internal gear, control sleeve and linkage sleeve, the linkage rod is movably connected with linkage sleeve by thread, the driven wheel is fixedly connected on linkage sleeve outside, the internal gear is fixedly installed in control sleeve inboard, the control sleeve both ends are rotatably connected with connecting pipe and communicating pipe, the linkage sleeve is rotatably installed in connecting plate, the control sleeve side is provided with positioning mechanism, the positioning mechanism includes movable spring, positioning rod, locking sleeve, limit plate and annular groove, the movable spring is movably arranged in positioning rod outside, the movable spring one end is connected with limit plate, multiple positioning rods are slidably connected with limit plate, the locking sleeve is movably arranged in connecting pipe outside by thread, the limit plate is fixedly arranged in connecting pipe outside, the annular groove is opened in control sleeve side.

[0010] The utility model further sets up, flow tank, input slot and communicating hole all are provided with multiple.

[0011] The utility model further sets up, the vacuum bag side is equipped with seal, the seal outside is slidably equipped with pressure block.

[0012] The utility model further sets up, multiple linkage sleeve is rotatably installed in connecting plate, and the linkage rod is provided with multiple.

[0013] The utility model further sets up, reset plate side is the recessed structure design.

[0014] The utility model further sets up, the connecting plate side is movably equipped with linkage board, multiple linkage rod is connected in linkage board side, and the setting of linkage board has realized the location of linkage rod, ensures that linkage rod moves stably.

[0015] The utility model further sets up, multiple positioning grooves are opened in annular groove, positioning block is connected in positioning rod one end, and the positioning block is clamped into positioning groove, and the setting of positioning groove and positioning block has realized the complete locking of control sleeve.

[0016] The utility model further sets up, the edge of positioning groove and positioning block one end all adopt round angle structure design, the design of round angle makes the movement of positioning block more stable and smooth.

[0017] (Three) beneficial effect

[0018] Compared with the prior art, the utility model provides a vacuumizing device for stuffing food packaging has the following beneficial effects:

[0019] 1, the sealing device through the communication pipe, connecting pipe, flow tank, fixed plate, communication hole, communication groove, input slot, reset plate, reset spring, center rod and connecting plate's precision cooperation, constructs a set of efficient vacuum sealing system, the fixed connection of communication pipe and connecting pipe provides stable airflow channel, the multi-point setting of flow tank and input slot realizes uniform air extraction, the design of reset plate cooperates reset spring realizes automatic sealing, this design not only discloses the complicated operation of traditional screw connection, still improves the vacuum efficiency through multi-channel air extraction, significantly improves the packaging efficiency and operation convenience.

[0020] 2, the driving device through the coordinated action of linkage rod, driven wheel, internal gear, control sleeve and linkage sleeve, constructs a set of reliable driving sealing system, the threaded connection of linkage rod and linkage sleeve provides accurate displacement control, the meshing of driven wheel and internal gear realizes synchronous transmission, the design of control sleeve cooperates linkage plate and ensures the stable movement of linkage rod, this structure not only realizes quick driving sealing through mechanical linkage, but also prevents air backflow through multi-point linkage, ensures the reliability of vacuum packaging.

[0021] 3, the positioning mechanism through the precision cooperation of movable spring, positioning rod, locking sleeve, limit plate and annular groove, constructs a set of stable locking system, the elastic cooperation of movable spring and positioning rod provides reliable reset function, the threaded connection of locking sleeve and connecting pipe realizes the stable locking of positioning rod, the design of limit plate cooperates annular groove and realizes the limiting of positioning rod and positioning block, the setting of positioning block and positioning groove realizes complete locking, this design not only provides reliable anti-loose protection through multiple locking, but also realizes smooth transition through round angle structure design, ensures the structural stability of equipment in the process of transportation and use. ACCURACY

[0022] Figure 1 It is the whole structure schematic drawing of the vacuumizing device for stuffing food packaging in the utility model;

[0023] Figure 2 It is the sectional structure schematic drawing of sealing device, driving device and positioning mechanism part in the utility model;

[0024] Figure 3It is cross section structure schematic view of the communication pipe, the connecting pipe and the control sleeve part in the utility model.

[0025] Figure 4 It is cross section structure schematic view of the communication pipe and the connecting pipe part in the utility model.

[0026] Figure 5 It is cross section structure schematic view of the sealing device, the driving device and the positioning mechanism part second angle in the utility model.

[0027] In the drawing: 1, vacuum bag;2, communication pipe;3, connecting pipe;4, flow tank;5, fixed plate;6, communication hole;7, communication groove;8, input slot;9, reset plate;10, reset spring;11, center rod;12, connecting plate;13, linkage rod;14, driven wheel;15, inner gear;16, control sleeve;17, linkage sleeve;18, movable spring;19, positioning rod;20, locking sleeve;21, limiting plate;22, annular groove;23, seal;24, pressing block;25, linkage plate;26, positioning groove;27, positioning block. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise specified, the directions such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions. Similarly, for the convenience of understanding and description, "left, right" are generally directed to the left and right shown in the drawings, and "inner, outer" are directed to the inner and outer relative to the contour of each component itself. However, the above directional words are not used to limit the present application.

[0031] Please refer to Figures 1-5A kind of vacuum device for stuffing food packaging, including vacuum bag 1, vacuum bag 1 one side is equipped with sealing device, sealing device includes communication pipe 2, connecting pipe 3, flow groove 4, fixed plate 5, communication hole 6, communication groove 7, input slot 8, reset plate 9, reset spring 10, center rod 11 and connecting plate 12, communication pipe 2 is arranged in connecting pipe 3 one side, connecting pipe 3 is installed in vacuum bag 1 one side, flow groove 4 and input slot 8 are opened in the side wall of center rod 11, fixed plate 5 is fixedly installed in the inner side of communication pipe 2, communication hole 6 is opened in fixed plate 5, communication groove 7 is opened in the inner side of center rod 11, reset plate 9 is slidably arranged in the inner side of connecting pipe 3, reset spring 10 two ends are connected with reset plate 9 and connecting plate 12 respectively, center rod 11 is fixedly arranged in the one side of fixed plate 5, connecting pipe 3 is fixedly connected with center rod 11 by connecting plate 12, the outer side of center rod 11 is provided with driving device, driving device includes linkage rod 13, driven wheel 14, internal gear 15, control sleeve 16 and linkage sleeve 17, linkage rod 13 is movably connected with linkage sleeve 17 by screw thread, driven wheel 14 is fixedly connected on the outer side of linkage sleeve 17, internal gear 15 is fixedly installed in the inner side of control sleeve 16, control sleeve 16 two ends are rotatably connected with connecting pipe 3 and communication pipe 2 respectively, linkage sleeve 17 is rotatably installed on connecting plate 12, control sleeve 16 one side is provided with positioning mechanism, positioning mechanism includes movable spring 18, positioning rod 19, locking sleeve 20, limit plate 21 and annular groove 22, movable spring 18 is movably sleeved on the outer side of positioning rod 19, movable spring 18 one end is connected with limit plate 21, multiple positioning rods 19 are slidably connected with limit plate 21, locking sleeve 20 is movably sleeved on the outer side of connecting pipe 3 by screw thread, limit plate 21 is fixedly arranged on the outer side of connecting pipe 3, annular groove 22 is opened in the one side of control sleeve 16.

[0032] Flow groove 4, input slot 8 and communication hole 6 are all provided with multiple.

[0033] Vacuum bag 1 one side is equipped with seal 23, seal 23 outer side is slidably provided with pressing block 24.

[0034] Multiple linkage sleeve 17 is rotatably installed on connecting plate 12, linkage rod 13 is provided with multiple.

[0035] Reset plate 9 one side is designed as concave structure.

[0036] Connecting plate 12 one side is movably provided with linkage plate 25, multiple linkage rods 13 are connected on the one side of linkage plate 25.

[0037] In the embodiment, when the device is needed, first move the pressing block 24 to open the seal 23, then put the stuffed food into the vacuum bag 1, then push the pressing block 24 reversely to make the pressing block 24 seal the seal 23, then connect the external air pump with the connecting pipe 2, then rotate the control sleeve 16 forwardly to make the control sleeve 16 rotate the inner gear 15 installed inside, then the inner gear 15 rotates the multiple driven wheels 14 engaged with the inner gear 15, then the driven wheels 14 rotate the linkage sleeve 17 on the connecting plate 12 synchronously, since the multiple linkage rods 13 are connected to one side of the linkage plate 25, the linkage rods 13 cannot rotate, and the linkage rods 13 are movably connected with the linkage sleeve 17 through threads, then the linkage rods 13 slide the linkage plate 25 along the linkage sleeve 17, so that one end of the linkage rods 13 gradually moves away from the reset plate 9, and the reset plate 9 is no longer pressed tightly, then open the external air pump to make the air pump move the reset plate 9, then the reset plate 9 slides along the center rod 11, and the reset plate 9 and the connecting plate 12 press the reset spring 10, then the reset plate 9 moves to the other end of the input slot 8, then the air inside the vacuum bag 1 enters the communicating slot 7 in the center rod 11 through the input slot 8, then enters the other side of the connecting plate 12 through the multiple flow slots 4 in the other end of the center rod 11, so as to be pumped out through the multiple communicating holes 6 in the fixed plate 5, when the vacuum bag 1 is pumped to vacuum, rotate the control sleeve 16 reversely to make the control sleeve 16 drive the linkage sleeve 17 to rotate reversely on the connecting plate 12 through the inner gear 15 and the driven wheels 14, then the linkage rods 13 slide the linkage plate 25 reversely, then the other end of the linkage rods 13 slides the reset plate 9 along the center rod 11 to reset, and the reset plate 9 stretches the reset spring 10, then the reset plate 9 moves back to the original side of the input slot 8, so that the reset plate 9 seals the connecting pipe 3 again to realize active sealing, then the air pump is removed, which effectively avoids the air entering during the dismounting process.

[0038] Please refer to Figures 2-5 , as a further embodiment of the positioning mechanism: multiple positioning slots 26 are arranged in the annular slot 22, and the positioning block 27 is connected to one end of the positioning rod 19 and is clamped into the positioning slot 26.

[0039] The edges of the positioning slot 26 and one end of the positioning block 27 are designed in a round corner structure.

[0040] More specifically, when the device needs to be used, first rotate the locking sleeve 20 in the forward direction, so that the locking sleeve 20 moves along the threads outside the connecting pipe 3, then one side of the locking sleeve 20 no longer limits one end of the positioning rod 19, then rotate the control sleeve 16, the control sleeve 16 drives the annular groove 22 and the plurality of positioning grooves 26 inside it to rotate, then the inner wall of the positioning groove 26 extrudes one end of the positioning block 27, and due to the round design of the edge of the positioning groove 26 and the end of the positioning block 27, then the positioning block 27 will slide out of the positioning groove 26 into the annular groove 22, and the positioning block 27 will cooperate with the limiting plate 21 to extrude the movable spring 18 sleeved outside the positioning rod 19, and at the same time the positioning rod 19 slides along the limiting plate 21, when the device is used, the movable spring 18 pushes the positioning block 27 to slide back, so that the positioning block 27 is clamped into the corresponding positioning groove 26, and the positioning block 27 drives the positioning rod 19 to slide back along the limiting plate 21, then rotate the locking sleeve 20 in the reverse direction, so that the locking sleeve 20 moves along the threads arranged outside the connecting pipe 3 to reset, then one side of the locking sleeve 20 limits the positioning rod 19 again, so that the positioning rod 19 cooperates with the positioning groove 26 to lock the control sleeve 16, preventing the control sleeve 16 from rotating, so as to ensure that the linkage lever 13 tightly abuts against the reset plate 9, preventing the reset plate 9 from moving accidentally, thereby ensuring the stability of the device and preventing accidental opening.

[0041] In summary, the overall device in use or operation: when the need to use the device, first move the block 24, so that the seal 23 open, and then put the stuffed pasta into the vacuum bag 1, then push the block 24 in reverse, so that the block 24 will seal 23 closed, then with the external air pump and connecting tube 2 connection, then positive rotation control sleeve 16, so that the control sleeve 16 drive the inside installed internal gear 15 rotation, then the internal gear 15 drive a plurality of driven wheels 14 rotation, then the driven wheel 14 drive linkage sleeve 17 on the connecting plate 12 synchronous rotation, because a plurality of linkage rods 13 connected to the linkage plate 25 one side, so that the linkage rod 13 can not rotate, and the linkage rod 13 through the screw with the linkage sleeve 17 movable connection, then the linkage rod 13 will drive the linkage plate 25 along the linkage sleeve 17 sliding, so that the linkage rod 13 one end gradually away from the reset plate 9, no longer reset plate 9 tightly, then open the external air pump, so that the air pump reset plate 9 movement, then the reset plate 9 along the center rod 11 sliding, and reset plate 9 and connecting plate 12 reset spring 10 extrusion cooperation, then the reset plate 9 will move to the input slot 8 the other end, then the vacuum bag 1 inside the air will be through the input slot 8 into the center rod 11 inside the communication groove 7, then through the center rod 11 other end side wall opening a plurality of flow slot 4 into the connecting plate 12 the other side, so as to be extracted through the fixed plate 5 opening a plurality of communication hole 6, when the vacuum bag 1 is extracted into a vacuum, reverse rotation control sleeve 16, so that the control sleeve 16 through the internal gear 15 and driven wheel 14 drive linkage sleeve 17 on the connecting plate 12 reverse rotation, then the linkage rod 13 drive linkage plate 25 reverse sliding, then the linkage rod 13 the other end reset plate 9 along the center rod 11 sliding reset, while the reset plate 9 drive reset spring 10 stretch reset, then the reset plate 9 move back to the input slot 8 originally one side, so that the reset plate 9 reseal connecting tube 3, active sealing, then the air pump is removed, effectively avoid the entry of air in the process of disassembly.

[0042] When the device needs to be used, first rotate the locking sleeve 20 in the forward direction, so that the locking sleeve 20 moves along the threads outside the connecting pipe 3, then one side of the locking sleeve 20 no longer limits one end of the positioning rod 19, then rotate the control sleeve 16, the control sleeve 16 drives the annular groove 22 and the plurality of positioning grooves 26 inside to rotate, then the inner wall of the positioning groove 26 extrudes the end of the positioning block 27, due to the round design of the edge of the positioning groove 26 and the end of the positioning block 27, then the positioning block 27 will slide out of the positioning groove 26 into the annular groove 22, and the positioning block 27 will cooperate with the limiting plate 21 to extrude the movable spring 18 sleeved outside the positioning rod 19, and the positioning rod 19 slides along the limiting plate 21, when the device is used, the movable spring 18 pushes the positioning block 27 to slide back, so that the positioning block 27 is clamped into the corresponding positioning groove 26, and the positioning block 27 drives the positioning rod 19 to slide back along the limiting plate 21, then rotate the locking sleeve 20 in the reverse direction, so that the locking sleeve 20 moves back along the threads arranged outside the connecting pipe 3, then one side of the locking sleeve 20 limits the positioning rod 19 again, so that the positioning rod 19 cooperates with the positioning groove 26 to lock the control sleeve 16, preventing the control sleeve 16 from rotating, so as to ensure that the linkage rod 13 tightly abuts against the reset plate 9, preventing the reset plate 9 from moving accidentally, thereby ensuring the stability of the device and preventing accidental opening.

[0043] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection methods, which will not be described one by one. In the above, whenever there is a fixed connection, welding is preferred. Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vacuum-packing device for ravioli packs, comprising a vacuum bag (1), characterised in that: The vacuum bag (1) is provided with a sealing device on one side, the sealing device comprises a communication pipe (2), a connecting pipe (3), a flow groove (4), a fixed plate (5), a communication hole (6), a communication groove (7), an input groove (8), a reset plate (9), a reset spring (10), a center rod (11) and a connecting plate (12), the flow groove (4) and the input groove (8) are arranged on the side wall of the center rod (11), the communication hole (6) is arranged on the fixed plate (5), the communication groove (7) is arranged on the inner side of the center rod (11), the reset spring (10) is connected with the reset plate (9) and the connecting plate (12), the outer side of the center rod (11) is provided with a driving device, the driving device comprises a linkage rod (13), a driven wheel (14), an internal gear (15), a control sleeve (16) and a linkage sleeve (17), the linkage rod (13) is connected with the linkage sleeve (17) through threads, the driven wheel (14) is connected on the outer side of the linkage sleeve (17), the internal gear (15) is installed on the inner side of the control sleeve (16), one side of the control sleeve (16) is provided with a positioning mechanism, the positioning mechanism comprises a movable spring (18), a positioning rod (19), a locking sleeve (20), a limiting plate (21) and an annular groove (22), the movable spring (18) is sleeved on the outer side of the positioning rod (19), the positioning rod (19) is slidably connected with the limiting plate (21), the locking sleeve (20) is sleeved on the outer side of the connecting pipe (3) through threads, and the annular groove (22) is arranged on one side of the control sleeve (16).

2. A device for evacuating the air from a package of stuffed pasta according to claim 1, characterized in that: The flow groove (4), the input groove (8) and the communication hole (6) are all provided with a plurality of.

3. A device for evacuating the package of stuffed pasta according to claim 2, characterized in that: The vacuum bag (1) is provided with a sealing device on one side, the sealing device comprises a communication pipe (2), a connecting pipe (3), a flow groove (4), a fixed plate (5), a communication hole (6), a communication groove (7), an input groove (8), a reset plate (9), a reset spring (10), a center rod (11) and a connecting plate (12), the flow groove (4) and the input groove (8) are arranged on the side wall of the center rod (11), the communication hole (6) is arranged on the fixed plate (5), the communication groove (7) is arranged on the inner side of the center rod (11), the reset spring (10) is connected with the reset plate (9) and the connecting plate (12), the outer side of the center rod (11) is provided with a driving device, the driving device comprises a linkage rod (13), a driven wheel (14), an internal gear (15), a control sleeve (16) and a linkage sleeve (17), the linkage rod (13) is connected with the linkage sleeve (17) through threads, the driven wheel (14) is connected on the outer side of the linkage sleeve (17), the internal gear (15) is installed on the inner side of the control sleeve (16), one side of the control sleeve (16) is provided with a positioning mechanism, the positioning mechanism comprises a movable spring (18), a positioning rod (19), a locking sleeve (20), a limiting plate (21) and an annular groove (22), the movable spring (18) is sleeved on the outer side of the positioning rod (19), the positioning rod (19) is slidably connected with the limiting plate (21), the locking sleeve (20) is sleeved on the outer side of the connecting pipe (3) through threads, and the annular groove (22) is arranged on one side of the control sleeve (16).

4. A device for evacuating the package of stuffed pasta according to any one of claims 1-3, characterized in that: The flow groove (4), the input groove (8) and the communication hole (6) are all provided with a plurality of.

5. A device for evacuating the air from a package of stuffed pasta according to claim 1, characterized in that: The vacuum bag (1) is provided with a sealing device on one side, the sealing device comprises a communication pipe (2), a connecting pipe (3), a flow groove (4), a fixed plate (5), a communication hole (6), a communication groove (7), an input groove (8), a reset plate (9), a reset spring (10), a center rod (11) and a connecting plate (12), the flow groove (4) and the input groove (8) are arranged on the side wall of the center rod (11), the communication hole (6) is arranged on the fixed plate (5), the communication groove (7) is arranged on the inner side of the center rod (11), the reset spring (10) is connected with the reset plate (9) and the connecting plate (12), the outer side of the center rod (11) is provided with a driving device, the driving device comprises a linkage rod (13), a driven wheel (14), an internal gear (15), a control sleeve (16) and a linkage sleeve (17), the linkage rod (13) is connected with the linkage sleeve (17) through threads, the driven wheel (14) is connected on the outer side of the linkage sleeve (17), the internal gear (15) is installed on the inner side of the control sleeve (16), one side of the control sleeve (16) is provided with a positioning mechanism, the positioning mechanism comprises a movable spring (18), a positioning rod (19), a locking sleeve (20), a limiting plate (21) and an annular groove (22), the movable spring (18) is sleeved on the outer side of the positioning rod (19), the positioning rod (19) is slidably connected with the limiting plate (21), the locking sleeve (20) is sleeved on the outer side of the connecting pipe (3) through threads, and the annular groove (22) is arranged on one side of the control sleeve (16).

6. A device for evacuating a package of stuffed pasta according to claim 5, characterized in that: ​ 7. A device for evacuating the air from a package of stuffed pasta according to claim 1, characterized in that: ​ 8. A vacuum packaging apparatus for stuffed pasta according to claim 7, characterized in that: ​

Images