Vacuum packaging equipment and method

Abstract

The invention belongs to the technical field of packaging devices, and discloses vacuum packaging equipment which is provided with N vacuumizing stations, a transfer carrier receives packaging bags at an input station, and a moving assembly drives the transfer carrier to move so as to arrange the packaging bags to all middle stations; the number of the intermediate work stations is N-1, the input work station and the N-1 intermediate work stations form a transfer work station, or the number of the intermediate work stations is N, the N intermediate work stations form the transfer work station, and the transfer work stations are arranged parallel to the first direction so as to be in one-to-one correspondence with the vacuumizing work stations; and the vacuum cabin or the movable mechanism acts to transfer the packaging bags of the transfer station to the vacuumizing station. The packaging bag transfer device can be well matched with actions of previous process equipment and accord with the process rhythm, so that multiple packaging bags can stay at different transfer stations at the same time, and the multiple packaging bags are transferred to a vacuumizing station at a time to be subjected to vacuum packaging. The invention further discloses a vacuum packaging method.

Description

Technical Field

[0001] The present invention belongs to the technical field of packaging devices, and in particular relates to vacuum packaging equipment and a method. Background Art

[0002] There are two main ways of vacuuming, one is the intubation type and the other is the vacuum chamber type. The vacuum degree of the intubation type is poor and is not suitable for materials containing liquids. The vacuum degree of the vacuum chamber type is good, but the equipment is large and the processing time is long, which makes it difficult to match the processing time of the bagging, bag opening, and unloading processes of the previous process equipment. In other words, it is difficult for the vacuum equipment to complete the vacuuming according to the process rhythm of the previous process equipment. Summary of the Invention

[0003] To address the above technical issues, the present invention discloses vacuum packaging equipment that effectively coordinates with the operations of preceding process equipment and matches the process rhythm, thereby enabling multiple packaging bags to be simultaneously stored at different transfer stations, thereby transferring the multiple packaging bags to a vacuum pumping station for vacuum packaging. The present invention also discloses a vacuum packaging method.

[0004] The specific technical solutions of the present invention are as follows:

[0005] A vacuum packaging device comprising a vacuum chamber and a transfer mechanism;

[0006] The vacuum packaging equipment is provided with N vacuum pumping stations along the first direction, N≥2, N is an integer, and each vacuum pumping station is provided with the vacuum chamber;

[0007] The transfer mechanism includes a transfer carrier for grabbing packaging bags and a moving component that drives the transfer carrier to move. The transfer carrier receives packaging bags containing materials output by the preceding packaging equipment at the input station. The transfer mechanism is provided with intermediate stations. The moving component drives the transfer carrier to move to arrange the packaging bags to each of the intermediate stations.

[0008] There are N-1 intermediate workstations, the input workstation and the N-1 intermediate workstations constitute a transfer workstation, and the transfer workstations are arranged parallel to the first direction so as to correspond one-to-one with the vacuum pumping workstations; or there are N intermediate workstations, the N intermediate workstations constitute a transfer workstation, and the transfer workstations are arranged parallel to the first direction so as to correspond one-to-one with the vacuum pumping workstations;

[0009] The vacuum chamber moves between the vacuum pumping station and the transfer station to receive the packaging bag, or the moving component has a movable mechanism that moves between the transfer station and the vacuum pumping station to deliver the packaging bag into the vacuum chamber.

[0010] In the present application, the transfer mechanism carries the packaging bags to move so as to transfer the packaging bags to the intermediate workstation. The present application uses intermittent step-by-step actions to realize the transfer of packaging bags, so that each intermediate workstation can realize the temporary storage of packaging bags in turn, so that multiple packaging bags can be arranged to all intermediate workstations along the first direction, so that the vacuum chamber can receive packaging bags in the transfer station composed of all intermediate workstations or the transfer station composed of all intermediate workstations and the output workstation, so that the vacuum chamber can realize vacuum sealing of packaging bags at the vacuum pumping station. In the present application, the time period in which the packaging bags complete vacuum packaging at the vacuum pumping station covers the time of the preceding process equipment. That is to say, after a batch of packaging bags completes the bag loading, unloading and other processes on the preceding process equipment, they can be transferred to the intermediate workstation by the transfer mechanism. At the same time, the packaging bags of the previous batch complete vacuum packaging. At this time, the packaging bags of the intermediate workstation can be transferred to the vacuum pumping station, thereby realizing continuous process action, and the continuous process action continues from the preceding process equipment to the vacuum packaging equipment, thereby better improving the process efficiency.

[0011] Preferably, each of the intermediate workstations is provided with an intermediate carrier for temporarily storing packaging bags, and N transfer carriers are provided parallel to the first direction. The moving assembly includes a first moving mechanism that moves back and forth parallel to the first direction, and the N transfer carriers are driven by the first moving mechanism to move synchronously back and forth to transfer packaging bags.

[0012] After the packaging bag is transferred to the intermediate carrier by a transfer carrier, the packaging bag will be transferred from the intermediate carrier to the next intermediate carrier by the next transfer carrier. That is, through such a cyclic operation, after all the intermediate stations are fully loaded, the packaging bag will be transferred from the vacuum chamber to the vacuum pumping station for heat sealing. The motion trajectory achieved by this structure is simple, making the overall structure more compact, which can further reduce the size of the equipment and effectively improve the heat sealing efficiency of the packaging bag.

[0013] Preferably, the intermediate carrier includes a holding portion 1 and a holding portion 2 that are arranged opposite to each other, and the holding portion 1 and the holding portion 2 cooperate with the sides of the packaging bag to fix the packaging bag, and the transfer carrier cooperates with the mouth of the packaging bag to grab the packaging bag.

[0014] The transfer carrier clamps the mouth of the packaging bag, and the intermediate carrier clamps the side of the packaging bag. Therefore, the clamping position of the packaging bag by the transfer carrier can avoid the clamping position of the packaging bag by the intermediate carrier, thereby saving structural volume and avoiding movement interference; when clamping the mouth of the packaging bag, the clamping force is balanced, which can ensure the clamping stability of the packaging bag.

[0015] Preferably, the moving assembly further includes a second moving mechanism, and the transfer vehicle is driven by the second moving mechanism to move perpendicularly to the first direction.

[0016] On the basis of connecting and receiving the packaging bags of the preceding process equipment and ensuring the miniaturization of the vacuum packaging equipment, movement interference may occur between the transfer carrier and the intermediate carrier. That is to say, in order to enable the packaging bag to enter the inner side of the intermediate carrier, it is necessary to utilize the flexibility of the packaging bag itself. When the packaging bag touches the intermediate carrier, the continued movement of the transfer carrier causes the side of the packaging bag to shrink inward in the opposite direction of its movement direction, so that the width of the packaging bag is reduced, thereby entering the inner side of the intermediate carrier, so that the intermediate carrier can receive the packaging bag transferred by the transfer carrier. However, in some cases, the packaging bag The material contained in the bag is heavy. When the packaging bag touches the intermediate carrier, it is not necessarily possible to use the flexibility of the packaging bag to make the entire packaging bag located on the inner side of the intermediate carrier. The packaging bag may also fall from the transfer carrier due to the force relationship. Therefore, the best way is to avoid motion interference between the packaging bag and the intermediate carrier during the transfer of the packaging bag. Therefore, the present application uses a second moving mechanism to drive the transfer carrier to move perpendicular to the first direction, so that the packaging bag is located at the corresponding position on the inner side of the intermediate carrier, and then moves in the opposite direction along the above direction, so that the packaging bag enters the inner side of the intermediate carrier without interference.

[0017] Preferably, the vacuum chamber comprises a first chamber body and a second chamber body that are openable and closable, the first chamber body is provided with a holding mechanism for fixing the packaging bag, and the first chamber body is driven by a third moving mechanism to move between the vacuum pumping station and the transfer station to receive the packaging bag;

[0018] A sealing mechanism is provided on the first cabin and / or the second cabin.

[0019] The structure is simple. The cabin body 1 is switched between the vacuum pumping station and the transfer station through the action of the third moving mechanism, thereby realizing the transfer of the packaging bag. When the cabin body 1 carries the packaging bag back to the vacuum pumping station, it can be combined with the cabin body 2 to form a sealed cabin, that is, a vacuum cabin, thereby realizing vacuum heat sealing of the packaging bag on the basis of stable clamping of the packaging bag by the cabin body 1.

[0020] Preferably, the holding mechanism comprises a first clamping member and a second clamping member for clamping two sides of the packaging bag;

[0021] The second cabin is further provided with an expansion and contraction mechanism, which is associated with at least one of the first clamping member and the second clamping member, and the expansion and contraction mechanism is actuated to drive the first clamping member and the second clamping member to move relative to each other.

[0022] For packaging bags of different specifications, the width dimensions are different, so the fixed-spaced clamping parts 1 and 2 cannot adapt to larger application conditions; for heat sealing, the flatness of the packaging bag mouth is related to the sealing effect of the packaging bag. If the packaging bag mouth is not flat, then after heat sealing, an air gap may appear at the mouth of the packaging bag, that is, air leakage may occur; therefore, after setting up the expansion and contraction mechanism, the present application can not only adapt to packaging bags of different specifications, but also use the expansion and contraction mechanism to flatten the mouth of the packaging bag during the heat sealing process, thereby effectively improving the sealing effect of the packaging bag mouth.

[0023] Preferably, the expansion and contraction mechanism includes a screw and a driving mechanism 1 for driving the screw to rotate, and the screw is threadedly connected to at least one of the first clamping member and the second clamping member;

[0024] The cabin body 1 is further provided with a guide rod, the clamping member 1 and the clamping member 2 are slidably connected to the guide rod, and the axis of the guide rod is parallel to the axis of the screw.

[0025] The structure is simple and easy to set up, and can well meet the requirement of stable relative movement of the clamping member 1 and the clamping member 2.

[0026] Preferably, the vacuum chamber includes a plurality of workstations arranged in parallel, and the transfer vehicle correspondingly includes a plurality of transfer units arranged in parallel.

[0027] This structure can process as many packaging bags as possible at one time, making the entire process more compact and faster, and enabling the present application to further realize multi-station vacuum packaging, further improving process efficiency.

[0028] Preferably, the transfer carrier includes carrier one and carrier two, and carrier two rotates relative to carrier one under the action of drive mechanism two to clamp the mouth of the packaging bag, and the rotation plane of carrier two is parallel to the first direction.

[0029] The present application utilizes the flipping of the carrier 1 to meet the clamping requirement for the mouth of the packaging bag, and has an appropriate accommodating space for the packaging bag, thereby ensuring the clamping stability of the packaging bag.

[0030] Preferably, it also includes an output mechanism for receiving the heat-sealed packaging bags released from the vacuum chamber to transport the packaging bags out of the vacuum packaging equipment.

[0031] When the packaging bag completes the sealing operation, the vacuum chamber releases the packaging bag, and the packaging bag falls onto the output mechanism through free fall, and is then transported out of the vacuum packaging equipment through the output mechanism. This structure is simple and easy to set up, and it rationally utilizes the space occupied by the vacuum packaging equipment, which is conducive to the miniaturization of the equipment.

[0032] A vacuum packaging method, comprising:

[0033] Several vacuum pumping stations are arranged along the first direction, and each vacuum pumping station is provided with a vacuum chamber;

[0034] A plurality of transfer stations are arranged parallel to the first direction, and the transfer stations correspond to the vacuum chambers one by one;

[0035] Delivering the packaging bags filled with materials to the transfer stations;

[0036] When packaging bags are arranged at all the transfer stations, the vacuum chamber receives the packaging bags corresponding to the transfer stations respectively;

[0037] The packaging bags are vacuumed and sealed in the vacuum chamber, and during this process, the packaging bags filled with materials are sent to each transfer station;

[0038] The vacuum chamber releases the finished packaging bag.

[0039] Preferably, the step of delivering the packaging bags filled with materials to each transfer station comprises:

[0040] Except for the first transfer station, the other transfer stations are respectively equipped with intermediate carriers for temporarily storing packaging bags and transfer mechanisms for transporting packaging bags;

[0041] The transfer mechanism includes a transfer carrier for grabbing the packaging bags and a moving component that drives the transfer carrier to move. Several transfer carriers are arranged parallel to the first direction. The number of the transfer carriers is consistent with the number of vacuum chambers. The moving component includes a first moving mechanism that moves back and forth parallel to the first direction. All the transfer carriers are driven by the first moving mechanism to move back and forth synchronously to transfer the packaging bags.

[0042] Preferably, the vacuum chamber receives the packaging bags corresponding to the transfer stations respectively, including:

[0043] The vacuum chamber moves to the transfer station to receive the packaging bags delivered by the transfer mechanism, and then the vacuum chamber returns to the vacuum pumping station.

[0044] Compared with the existing technology, the present invention can match the process actions of the preceding process equipment. During the vacuum packaging process, the preceding process and the packaging bag transfer are carried out simultaneously, thereby continuously realizing the vacuum packaging of the packaging bags, effectively improving the process efficiency and saving process time. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0046] Figure 2 for Figure 1 A top view of

[0047] Figure 3 for Figure 2 AA cross-sectional view;

[0048] Figure 4 This is a schematic diagram of an application state of an embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of an application state of an embodiment of the present invention;

[0050] Figure 6 This is a schematic diagram of an application state of an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of an application state of an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of an application state of an embodiment of the present invention;

[0053] Figure 9 Schematic diagram of a vacuum chamber according to an embodiment of the present invention;

[0054] Figure 10 This is a partial schematic diagram of cabin 1 in an embodiment of the present invention;

[0055] Figure 11 for Figure 10 Enlarged view of point B;

[0056] Figure 12 This is another schematic diagram of pushing out according to an embodiment of the present invention;

[0057] Figure 13 A schematic diagram of the coordination of component 1 and component 2 in an embodiment of the present invention;

[0058] Figure 14 Another schematic diagram of expansion and contraction in an embodiment of the present invention;

[0059] Figure 15 for Figure 10 Enlarged view of point C;

[0060] Figure 16 Schematic diagram of a transfer mechanism in an embodiment of the present invention;

[0061] Figure 17 Schematic diagram of a docking mechanism according to an embodiment of the present invention;

[0062] Figure 18 for Figure 17 Enlarged view of point D;

[0063] Figure 19 Schematic diagram of a combined framework according to an embodiment of the present invention;

[0064] Figure 20 FIG. 2 is another schematic diagram of an embodiment of the present invention.

[0065] In the figure: 1000-vacuum pumping station; 1001-vacuum pumping station 1; 1002-vacuum pumping station 2; 1003-vacuum pumping station 3; 1004-vacuum pumping station 4; 2000-input station; 3000-intermediate station; 3001-intermediate station 1; 3002-intermediate station 2; 3003-intermediate station; 4000-transfer station; 4001-transfer station 1; 4002-transfer station 2; 4003-transfer station 3; 4004-transfer station 4; 1-vacuum chamber; 2-transfer carrier; 201-transfer carrier 1; 202-transfer carrier 2; 203-transfer carrier 3; 204-transfer carrier 4; 3-output mechanism; 4-first moving mechanism; 5- Combined frame; 6-second moving mechanism; 7-holding part one; 8-holding part two; 9-component one; 10-component two; 11-cabin one; 12-cabin two; 13-third moving mechanism; 14-heat sealing part one; 15-fourth moving mechanism; 16-clamping part one; 17-clamping part two; 18-component one; 19-component two; 20-reset spring; 21-waist-shaped hole; 22-guide part; 23-guide column; 24-screw; 25-driving mechanism one; 26-guide rod; 27-rod one; 28-rod two; 29-gear; 30-ejection rod; 31-roller; 32-limiting part one; 33-limiting part two; 34-carrier one; 35-carrier two; 36-driving mechanism two; 37-base. DETAILED DESCRIPTION

[0066] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0067] like Figures 1 to 20As shown, a vacuum packaging equipment includes a vacuum chamber 1 and a transfer mechanism; the vacuum packaging equipment is provided with N vacuum pumping stations 1000 along a first direction, N ≥ 2, N is an integer, and each vacuum pumping station 1000 is provided with the vacuum chamber 1; the transfer mechanism includes a transfer carrier 2 for grabbing packaging bags and a moving component that drives the transfer carrier 2 to move, the transfer carrier 2 receives the packaging bags containing materials output by the preceding packaging equipment at the input station 2000, the transfer mechanism is provided with an intermediate station 3000, the moving component drives the transfer carrier 2 to move to arrange the packaging bags to each of the intermediate stations 3000; the intermediate station 3000 is provided with N-1, the input station Station 2000 and N-1 intermediate stations 3000 constitute a transfer station 4000, and the transfer stations 4000 are arranged parallel to the first direction so as to correspond one to each of the vacuum pumping stations 1001; alternatively, the intermediate stations 3000 are provided with N, and the N intermediate stations 3000 constitute a transfer station 4000, and the transfer stations 4000 are arranged parallel to the first direction so as to correspond one to each of the vacuum pumping stations 1001; the vacuum chamber 1 moves between the vacuum pumping station 1000 and the transfer station 4000 to receive the packaging bags, or the moving assembly has a movable mechanism that moves between the transfer station 4000 and the vacuum pumping station 1000 to deliver the packaging bags into the vacuum chamber 1. Furthermore, in this embodiment, the vacuum chamber 1 includes a plurality of workstations arranged in parallel, and the transfer carrier 2 correspondingly includes a plurality of transfer units arranged in parallel. Several workstations in the vacuum chamber 1 are arranged along a second direction, which is parallel to the first direction, and the vacuum pumping stations 1000 are arranged along the first direction. Therefore, in the plane where all the vacuum pumping stations 1000 are located, there are m*n workstations for vacuum packaging, where m and n are positive integers, and at least one of them is greater than or equal to 2. Therefore, in order to further improve the working efficiency, the transfer carriers 2 have m*n pieces, which is equivalent to that in the same plane, the transfer carriers 2 can clamp m*n packaging bags at the same time. The number of bags that can be connected at one time is large, which can greatly improve the transfer efficiency. Specifically, before the vacuum chamber 1 receives the packaging bags, the transfer carrier 2 can simultaneously clamp multiple packaging bags to the vacuum pumping station 1000 to be clamped by the vacuum chamber 1, or the vacuum chamber 1 can move to the position where the transfer carrier 2 clamps the packaging bags to receive the packaging bags, and then carry the packaging bags back to the vacuum pumping station 1000 for vacuuming.

[0068] Furthermore, the vacuum packaging equipment also includes an output mechanism 3 for receiving heat-sealed packaging bags released from the vacuum chamber 1 for transporting the bags out of the vacuum packaging equipment. Once the packaging bags are received at the vacuuming station and heat-sealed, the corresponding station in the vacuum chamber 1 will directly release the sealed packaging bags, allowing them to be directly dropped onto the output mechanism 3 for transport out of the vacuum packaging equipment. In this embodiment, the output mechanism 3 is a belt transport mechanism, which has a simple structure, high transport efficiency, and can save transport space. The output mechanism 3 can cover all stations in the vacuum chamber 1, thereby enabling the transport of packaging bags.

[0069] In this embodiment, there are N-1 intermediate workstations 3000. The input workstation 2000 and the N-1 intermediate workstations 3000 constitute a transfer workstation 4000. The transfer workstations 4000 are arranged parallel to the first direction and correspond one to one with the vacuum pumping workstations 1001. Specifically, a first distance is provided between the output workstation and the first transfer workstation 4000, and between any intermediate workstation 3000 and the next adjacent transfer workstation 4000. That is, when all transfer vehicles 2 simultaneously receive packaging bags, they move the first distance in the first direction to reach the transfer workstation 4000. In the first direction, the first transfer station 4000 is located between the output station and the first intermediate station 3000, the last transfer station 4000 is located behind the last intermediate station 3000, and any other transfer stations 4000 between the first and last transfer stations 4000 are located between the previous intermediate station 3000 and the next intermediate station 3000, thereby shortening the packaging bag transfer distance and further improving transfer efficiency. In other embodiments, there are N intermediate stations 3000, and N intermediate stations 3000 constitute the transfer stations 4000. The transfer stations 4000 are arranged parallel to the first direction to correspond one-to-one with the vacuum pumping stations 1000. The difference between this embodiment and the present embodiment is that the number of intermediate stations 3000 corresponds to the transfer carrier 2. Before the packaging bag enters the vacuum station 1000, the transfer carrier 2 does not receive the packaging bag on the input station 2000. At this time, all transfer carriers 2 receive the packaging bag located at the intermediate station 3000.

[0070] like Figure 20 As shown, in a technical solution of this embodiment, the vacuum packaging equipment improves the overall process efficiency through a ring-shaped circulation structure, but this circulation structure is usually a ring-shaped circulation structure, which results in a large moment of inertia in the circulation structure before the preceding process equipment 5000 and the vacuum packaging equipment are connected to transfer the packaging bags, which is not conducive to the stable connection between the preceding process equipment 5000 and the vacuum packaging equipment. Figure 1As shown, in this embodiment, the vacuum packaging equipment improves the overall process efficiency through a linear displacement cycle structure, which can get rid of the energy loss of rotational inertia, achieve more efficient start and stop and more agile connection response, and at the same time, due to the motion accuracy of linear motion under the same conditions, effectively reduce the motion positioning error. Specifically, in this embodiment, the first direction is the motion direction of the transfer mechanism, and multiple transfer carriers 2 are arranged along the first direction. That is to say, when transferring packaging bags, multiple transfer carriers 2 can simultaneously transfer multiple packaging bags along the first direction. Figures 4 to 8 As shown, in this embodiment, transfer carrier 1 201, transfer carrier 202, transfer carrier 3 203, and transfer carrier 4 204 are arranged along a first direction. The transfer stations 4000 are respectively transfer station 1 4001, transfer station 2 4002, transfer station 3 4003, and transfer station 4 4004. Correspondingly, the intermediate stations 3000 are respectively intermediate station 1 3001, intermediate station 2 3002, and intermediate station 3000. The vacuum stations 1000 are respectively vacuum station 1 1001, vacuum station 2 1002, vacuum station 3 1003, and vacuum station 4 1004. For ease of explanation, the specific application of transfer carrier 1 201 and transfer carrier 2 202 will be used for description.

[0071] During specific use, the transfer carrier 1 201 and the transfer carrier 2 202 move simultaneously. In the first process stage, the transfer carrier 1 201 clamps the packaging bag from the previous process equipment 5000, that is, the input station 2000 clamps the packaging bag. At this time, there is no packaging bag at the intermediate station 1 3001, so the transfer carrier 2 202 grabs it empty. Then the transfer carrier 1 201 transfers the packaging bag to the intermediate station 1 3001, and the transfer carrier 2 202 moves to the intermediate station 2 3002 at the same time; in the second process stage, the transfer carrier 1 201 and the transfer carrier 2 202 move in the opposite direction of the first direction. The transfer carrier 1 201 clamps the new packaging bag from the previous process equipment 5000, and the transfer mechanism 2 clamps the upper packaging bag from the intermediate station 1 3001. The packaging bags are stored in the first transfer carrier 201. At this time, the transfer carrier 1 201 and the transfer carrier 2 202 both clamp the corresponding packaging bags; in the third process stage, the transfer carrier 1 201 and the transfer carrier 2 202 both clamp the packaging bags and move along the first direction. At this time, the position reached is the transfer station 4000, that is, the transfer carrier 1 201 clamps the packaging bags and arrives at the transfer station 1 4001, and the transfer carrier 2 202 clamps the packaging bags and arrives at the transfer station 2 4002. Then the vacuum chambers 1 of the vacuum station 1 1001 and the vacuum station 2 1002 are switched to the transfer station 1 4001 and the transfer station 2 4002 to receive the packaging bags, and reset to the corresponding vacuum station 1000 to heat-seal the packaging bags clamped by the corresponding vacuum chambers 1.

[0072] Therefore, in this embodiment, for one packaging bag, the longest movement path of the packaging bag is from the preceding process equipment 5000 to the intermediate workstation 1 3001 by the transfer carrier 1 201, from the intermediate workstation 1 3001 to the intermediate workstation 2 3002 by the transfer carrier 2 202, from the intermediate workstation 2 3002 to the intermediate workstation 3000 3 by the transfer carrier 3 203, and from the intermediate workstation 3000 3 to the transfer workstation 4 4004 by the transfer carrier 4 204; and for another packaging bag, the shortest movement path is from the transfer carrier 1 201 to the transfer workstation 1 4001.

[0073] During the use of this embodiment, the packaging bags are transferred in an intermittent step-by-step manner, that is, the packaging bags are moved one by one and transferred to the rear. At this time, the transfer of the packaging bags has a fixed rhythm. In the preceding process equipment 5000, the packaging bags can be transferred and unloaded. Therefore, this embodiment can cooperate with the process rhythm of the preceding process equipment 5000 on the basis of eliminating rotational inertia. It can be seen that in this embodiment, each moving distance of the packaging bags is shorter, so the control accuracy is also higher. Based on the transfer principle of this embodiment, in some embodiments, the packaging bags can be transferred to a preset position at one time, for example, multiple packaging bags can be placed in the intermediate work station three 3003, the intermediate work station two 3002, and the intermediate work station one 3001 in turn. It should be noted that the movement mode of this embodiment is direct transfer, not intermittent step-by-step transfer. Therefore, since the packaging bags are transferred from The movement distance between the preceding process equipment 5000 and the intermediate workstation 30003 is the largest. Therefore, while coordinating with the process rhythm of the preceding process equipment 5000, the time of this journey is the longest, so it is necessary to speed up the speed required for this journey. That is to say, the reciprocating time t3 of the transfer vehicle 2 from the preceding process equipment 5000 to the intermediate workstation 30003, the reciprocating time t2 of the transfer vehicle 2 from the preceding process equipment 5000 to the intermediate workstation 2 3002, and the reciprocating time t1 of the transfer vehicle 2 from the preceding process equipment 5000 to the intermediate workstation 1 3001 should satisfy t1=t2=t3. This has different speed requirements for each journey. Therefore, in order to cooperate with the process rhythm of the preceding process equipment 5000, the vacuum packaging equipment of this embodiment is not conducive to the use of a continuous transfer method. That is to say, the intermittent step-by-step transfer method of this embodiment is the optimal implementation method.

[0074] This embodiment adopts a linear transport, which is also conducive to power supply. Compared with the annular circulation structure, there is no need to set up high-cost structures such as air slip rings. This embodiment can even directly use a flexible spiral structure cable to complete rapid power connection, so this embodiment can achieve low-cost power supply.

[0075] In this embodiment, each intermediate workstation 3000 is respectively provided with an intermediate carrier for temporarily storing packaging bags. N transfer carriers 2 are provided parallel to the first direction. The moving assembly includes a first moving mechanism 4 that moves back and forth parallel to the first direction. The N transfer carriers 2 are driven by the first moving mechanism 4 to synchronously reciprocate to transfer packaging bags. The moving assembly also includes a combined frame 5. The first moving mechanism 4 drives the combined frame 5 to reciprocate in the first direction. A plurality of transfer carriers 2 are provided on the combined frame 5. In other words, this embodiment utilizes the combined frame 5 to load all transfer carriers 2, and then the action of the first moving mechanism 4 drives the combined frame 5 to move, thereby achieving the synchronous action of all transfer carriers 2. This structure is simple and easy to implement.

[0076] In this embodiment, one of the process steps is that the transfer carrier 2 clamps the mouth of the packaging bag to transfer the packaging bag to the intermediate workstation 3000 to wait for the next transfer. When the packaging bag is clamped by the intermediate carrier of the intermediate workstation 3000, the intermediate carrier clamps the side of the packaging bag. Therefore, when the intermediate carrier is opened, the packaging bag needs to be moved to the inside of the intermediate carrier so that the intermediate carrier can clamp the side of the packaging bag when it is closed. The position of the intermediate carrier will interfere with the movement of the transfer mechanism. Therefore, in this embodiment, the moving component also includes a second moving mechanism 6, and the transfer carrier 2 is driven by the second moving mechanism 6 to move perpendicular to the first direction. Specifically, the second moving mechanism 6 is connected to the combined frame 5 by transmission; the intermediate carrier opens and closes the clamp along the first direction; when the combined frame 5 moves along the first direction past the intermediate carrier, the second moving mechanism 6 drives the combined frame 5 to move, thereby preventing the intermediate carrier from touching the packaging bag and reducing the width of the packaging bag. The first moving mechanism 4 continues to move after the second moving mechanism 6 moves, allowing the packaging bag to enter the side corresponding to the inner side of the intermediate carrier, and then the second moving mechanism 6 moves in the opposite direction, allowing the packaging bag to enter the inner side of the intermediate carrier without interference, thereby avoiding the use of the flexibility of the packaging bag itself to achieve the intermediate carrier's reception of the packaging bag, thereby improving the transportation stability of the packaging bag. This not only avoids the movement interference between the packaging bag and the intermediate carrier, but also can well complete the transition from clamping the packaging bag mouth to clamping the packaging bag side. It can be seen that the movable mechanism can be the second moving mechanism 6.

[0077] While driving the combined frame 5, the second moving mechanism 6 also simultaneously drives the first moving mechanism 4, thereby simplifying the structure. Both the first moving mechanism 4 and the second moving mechanism 6 can be configured as telescopic mechanisms, or alternatively, as lead screw mechanisms, linear modules, and the like. It should be noted that in this embodiment, each drive mechanism employing a telescopic mechanism is equipped with a corresponding slider track to ensure guidance and drive stability.

[0078] In this embodiment, the intermediate carrier includes a holding portion 1 7 and a holding portion 2 8 arranged opposite to each other. The holding portion 1 7 and the holding portion 2 8 cooperate with the sides of the packaging bag to fix the packaging bag, and the transfer carrier 2 cooperates with the opening of the packaging bag to grab the packaging bag. The holding portion 1 7 and the holding portion 2 8 can be clamp components or suction cup components. Figure 17 、 Figure 18 As shown, in this embodiment, the intermediate carrier also opens and closes in the first direction. The retaining portion 1 (7) and retaining portion 2 (8) comprise components 1 (9) and 2 (10). These components 1 (9) and 2 (10) are activated by a cylinder to achieve relative rotational separation and closure, thereby meeting specific usage requirements. In this embodiment, retaining portion 1 (7) and retaining portion 2 (8) can simultaneously clamp adjacent sides of packaging bags in the second direction, that is, clamping a packaging bag between two adjacent intermediate carriers.

[0079] like Figure 1 、 Figure 3 、 Figure 9As shown, in this embodiment, the vacuum chamber 1 includes a chamber 11 and a chamber 2 12 that are arranged to open and close. The chamber 11 is provided with a holding mechanism for fixing the packaging bag. The chamber 11 is driven by a third moving mechanism 13 to move between the vacuum pumping station 1000 and the transfer station 4000 to receive the packaging bag. A sealing mechanism is provided on the chamber 11 and / or the chamber 2 12. Furthermore, in this embodiment, the sealing mechanism is a heat sealing mechanism, which includes a heat sealing element 14 and a heat sealing element 2. The chamber 11 is provided with the heat sealing element 14, and the chamber 2 12 is provided with the heat sealing element 2. Of course, in other embodiments, an independent sealing mechanism may be provided in the chamber 11 or the chamber 2 12. In addition, in addition to heat sealing, the sealing mechanism may also be ultrasonic sealing, pressure sealing, suture sealing, etc. The cabin body 11 can switch between the vacuum station 1000 and the intermediate station 3000. Its purpose is to clamp the packaging bag at the intermediate station 3000 and transfer the packaging bag to the vacuum station 1000. The third moving mechanism 13 can be a telescopic rod structure, that is, the movement of the cabin body 11 can be achieved by pushing and dragging. The driving direction of the third moving mechanism 13 is the third direction, which is perpendicular to the first direction and the second direction, that is, the third direction is the direction perpendicular to the layout plane of the transfer mechanism. Based on this, in order to simplify the structure and facilitate operation, in this embodiment, the opening and closing of chamber 11 and chamber 2 12 are achieved by a fourth moving mechanism 15. The fourth moving mechanism 15 is used to drive chamber 2 12 to move back and forth in a first direction. When the vacuum chamber 1 needs to clamp a packaging bag, the fourth moving mechanism 15 drives chamber 2 12 away from chamber 1 11. Then, the third moving mechanism 13 drives chamber 1 11 in a third direction to the intermediate station 3000 to clamp the packaging bag. Then, it returns to the vacuum station 1000. After that, the fourth moving mechanism 15 drives chamber 2 12 to a position that is in contact with chamber 1 11, thereby achieving heat sealing. Of course, the position of chamber 2 12 can also be fixed, and only the movement of chamber 1 11 is driven. In this case, using a manipulator to achieve the movement of chamber 1 11 is the simplest solution, but it is costly. If other displacement mechanisms (slide rail mechanism, telescopic mechanism, gear rack mechanism, etc.) are used, the structure will be complicated and the volume will be large. It is known that, in some other embodiments, the fourth moving mechanism 15 may also be configured to drive the cabin body 11 and the cabin body 2 12 to move simultaneously. In this embodiment, the structure may be more complicated and the docking difficulty may be greater.In this embodiment, cabin 11 can first move to the transfer station 4000 to wait, and then receive the packaging bags brought by the transfer mechanism, or the transfer mechanism can first carry the packaging bags to the transfer station 4000, and then cabin 11 moves to the transfer station 4000 to receive the packaging bags. As a preferred implementation method, this embodiment specifically adopts the former, which can further improve the transfer efficiency of the packaging bags and avoid motion interference caused by the transfer mechanism of cabin 11 when it is in the rear movement and waiting state.

[0080] In this embodiment, the holding mechanism clamps the two opposite sides of the packaging bag. Therefore, on the basis of the transfer carrier 2 clamping the mouth of the packaging bag, the interference of the clamping parts of the two can be avoided. Moreover, since the holding mechanism clamps the two opposite sides of the packaging bag, it will not affect the sealing requirements of the packaging bag. In other words, such a clamping method can avoid the sealing position very well. The holding mechanism includes a clamping member 16 and a clamping member 2 17 for clamping the two opposite sides of the same packaging bag. In this embodiment, the holding mechanism also includes a pushing mechanism; the clamping member 16 and the clamping member 2 17 both include a component 18 and a component 2 19; the component 1 18 is stationary; the component 2 19 is transmission-connected to the pushing mechanism, the component 2 19 and the component 1 18 are slidably matched, and a return spring 20 is also provided between the component 18 and the component 2 19. It can be seen that the second component 19 is separated from the first component 18 under the action of the pushing mechanism. When the pushing mechanism releases the force, the second component 19 is closed with the first component 18 under the action of the return spring 20. In this embodiment, the pushing direction of the pushing mechanism is toward the first direction, that is, the pushing mechanism is a linear motion mechanism, such as Figure 12 As shown, in some embodiments, the swing of the rocker arm can also be converted into linear motion of the component 19 through a rocker arm slider mechanism to achieve the pushing of the component 19. The difference from this embodiment is that the present embodiment is a linear pushing, and this embodiment is a rocker arm that pushes the component 19 through an arc path. In this embodiment, it is also necessary to set a guide mechanism on the component 19 to meet the pushing requirements.

[0081] like Figure 13 As shown, in some other embodiments, the member 18 and the member 2 19 are also opened and closed by means of hinged rotation. For example, the member 18 and the member 2 19 are hinged by a cross structure, and then the member 18 and the member 2 19 are driven to move by forward and reverse threaded rods to achieve the purpose of opening and closing. However, this structure is complex and has low stability.

[0082] like Figure 11As shown, in this embodiment, the component 18 is provided with a waist-shaped hole 21, and the component 2 19 has a guide member 22 that cooperates with the side wall of the waist-shaped hole 21, thereby realizing the movement guidance of the component 2 19 relative to the component 1 18. The axis of the reset spring 20 extends in the first direction. Therefore, after the push-up mechanism unloads the force, the reset spring 20 can well realize the reset of the component 2 19. The component 1 18 and / or the component 2 19 has a guide column 23 that guides the deformation direction of the reset spring 20, which can improve the energy storage efficiency and release energy storage efficiency of the reset spring 20.

[0083] like Figure 10 、 Figure 11 As shown, in order to expand the scope of use of this embodiment and accommodate different packaging bag sizes, in this embodiment, the cabin 11 further includes an expansion and contraction mechanism, which is associated with at least one of the clamping member 16 and the clamping member 2 17. The expansion and contraction mechanism operates to drive relative movement between the clamping member 16 and the clamping member 2 17. When the expansion and contraction mechanism is associated with one of the clamping members, the other remains relatively restrained with respect to the entire structure, and only the associated one is driven to move in the second direction, thereby adjusting the relative distance between the clamping member 16 and the clamping member 2 17. It can be seen that when the expansion and contraction mechanism is associated with both the clamping member 16 and the clamping member 2 17, the clamping member 16 and the clamping member 2 17 move toward or away from each other synchronously. At this time, in addition to adapting to the specifications and sizes of different packaging bags, it can also produce better effects on the heat sealing process. Specifically, when the clamping member 16 and the clamping member 2 17 clamp the two opposite sides of the packaging bag, the shape of the packaging bag may be irregular, that is, the width of the packaging bag is smaller than the width of the packaging bag in the normal state. At this time, there is a high probability that a gap will appear between the side walls of the mouth of the packaging bag, and the mouth may also have a bent structure. If heat sealing is performed at this time, there may be residual heat-sealed parts, or the heat-sealing effect may be interfered with by the side walls of the mouth at different positions, resulting in incomplete heat sealing, and therefore the vacuum state in the packaging bag cannot be guaranteed. Based on this, the expansion and contraction mechanism can realize the relative displacement between the clamping member 16 and the clamping member 2 17, thereby stretching the mouth of the packaging bag, and then better realizing the fitting of the side walls of the mouth, thereby better meeting the sealing requirements.

[0084] Furthermore, the retracting mechanism includes a screw 24 and a drive mechanism 1 25 for rotating the screw 24. The screw 24 is threadedly connected to at least one of the clamp 16 and the clamp 2 17. The cabin 11 also includes a guide rod 26, to which the clamp 16 and the clamp 2 17 are slidably connected. The axis of the guide rod 26 is parallel to the axis of the screw 24. In this embodiment, the screw 24 is provided with forward and reverse thread segments. The forward thread segment is threadedly connected to the clamp 16, and the reverse thread segment is threadedly connected to the clamp 2 17. It is understood that the forward and reverse thread segments have multiple segments, corresponding to the actual number of clamps 16 and 17. Thus, when the drive mechanism 1 25 drives the screw 24 to rotate, the clamp 16 and the clamp 2 17 can move toward or away from each other. The drive mechanism can be a motor, a rack and pinion mechanism, or the like. When the screw 24 and the clamping member 16 are threadedly connected, the screw 24 passes through the clamping member 2 17 and slides with the clamping member 2 17, or there is a gap between the screw 24 and the clamping member 2 17, thereby also meeting the requirements of the spacing adjustment. This embodiment can be configured with different numbers of guide rods 26 according to actual conditions. The guide rods 26 can maintain the preset posture of the clamping member 16 and the clamping member 2 17, ensure the clamping stability of the packaging bag, and can also achieve motion guidance, making the movement process more stable. It should be noted that the guide rod 26 and the component 1 18 slide together, thereby avoiding interference with the movement of the component 2 19, and also avoiding the use of a complex structure to achieve spacing adjustment. Of course, in some embodiments, a gear rod mechanism can also be used to achieve the relative movement of the clamping member 16 and the clamping member 2 17, such as Figure 14As shown, rod 1 27 is fixedly connected to clamp 1 16 and slidably connected to clamp 2 17. Rod 2 28 is fixedly connected to clamp 2 17 and slidably connected to clamp 1 16. Rod 1 27 and rod 2 28 are arranged in parallel, and gear 29 is used to engage rod 1 27 and rod 2 28 respectively. At this time, relative movement between clamp 1 16 and clamp 2 17 can also be well achieved. Of course, in some embodiments, the relative movement between clamp 1 16 and clamp 2 17 can also be directly achieved using a telescopic mechanism. Furthermore, in order to better achieve opening and closing of the clamp, the ejection mechanism includes an ejection rod 30, which is arranged parallel to the axis of the screw 24; the ejection surface of the member 2 19 and the ejection rod 30 are in active contact. This structure can realize the movement of the clamping member 16 and / or the clamping member 2 17 relative to the ejection mechanism during the expansion and contraction process, and does not affect the force transmission of the ejection mechanism to the component 2 19. That is to say, after adjusting the spacing between the clamping member 16 and the clamping member 2 17, the ejection mechanism can still normally realize the opening and closing of the clamping member 16 and the clamping member 2 17. Specifically, the component 2 19 is provided with a roller 31 that rolls with the ejection surface. It can be understood that in this embodiment, the ejection rod 30 covers the entire transfer vehicle 2 at its location in the second direction. Therefore, along the first direction, this embodiment has multiple ejection rods 30, each of which can achieve ejection through its own telescopic mechanism, or all ejection rods 30 can achieve ejection through one telescopic mechanism. The return spring 20 can drive the roller 31 of the second component 19 to contact and cooperate with the ejection rod 30 at all times, satisfying the next ejection action of the ejection member, and also effectively improving the ejection efficiency and avoiding empty pushing (avoiding a gap between the ejection rod 30 and the roller 31). Therefore, when the expansion and contraction mechanism adjusts the distance between the clamping member 16 and the clamping member 2 17, the roller 31 rolls on the ejection surface of the ejection rod 30.

[0085] like Figure 15 As shown, in this embodiment, to prevent the movement of the ejection rod 30 from causing interference between the movement of component 19 and the front parts, component 18 has a limiter 32 and component 19 has a limiter 33. The ejection mechanism pushes component 19 to move, causing components 18 and 19 to open and form a clamping space. The limiters 1 32 and 2 33 abut against each other to prevent excessive movement of component 18. The limiters 1 32 and 2 33 are interlocking inclined structures. In other embodiments, they can also be stepped structures, thereby structurally limiting excessive movement of component 18. In this embodiment, component 18 can be effectively prevented from colliding with cabin 2 12.

[0086] like Figure 16As shown, the transfer vehicle 2 includes a first carrier 34 and a second carrier 35. Under the action of a second drive mechanism 36, the second carrier 35 rotates relative to the first carrier 34 to clamp the mouth of the packaging bag. The rotation plane of the second carrier 35 is parallel to the first direction. Specifically, the transport vehicle also includes a base 37; the first carrier 34 and the base 37 are fixedly connected, and the second carrier 35 and the base 37 are hinged; the third drive mechanism is hinged to the base 37 and is also hinged to the second carrier 35. The extension direction of the base 37 is along the third direction, that is, the second carrier 35 is flipped up and down. The second drive mechanism 36 is a telescopic mechanism. When the second drive mechanism 36 is extended, the second carrier 35 is tilted toward the first carrier 34 to achieve closure. When the second drive mechanism 36 is retracted, the second carrier 35 is tilted away from the first carrier 34 to achieve opening. This structure is conducive to clamping the packaging bag at the mouth of the packaging bag. The structure is simple and easy to implement.

[0087] Therefore, when using this embodiment, the packaging bags are unloaded from the preceding process equipment 5000, moved to the appropriate position, and taken over by the transfer carrier 2. The transfer carrier 2 sequentially clamps the packaging bags and fills all the intermediate carriers of the intermediate stations with intermittent step-by-step movement. Then, the transfer carrier 2 is used to take over the packaging bags of the input station 2000 in the next clamping, and at the same time receives the packaging bags on all the intermediate carriers. Then, all the packaging bags clamped by the transfer carrier 2 this time are uniformly transferred to the transfer station 4000, and then the vacuum chamber 1 is used to take over the packaging bags of the transfer station 4000 and transfer them back to the vacuum station 1000. During vacuum packaging, the vacuum chamber 1 is vacuumed until all the packaging bags are sealed. After sealing is completed, the vacuum chamber 1 releases the packaging bags, and the packaging bags fall onto the output mechanism 3 and are sent out of the vacuum packaging equipment. In this embodiment, the pipe connected to the vacuum equipment can be connected to the cabin body 11 and / or the cabin body 2 12, and can be set according to actual conditions.

[0088] In another embodiment, a vacuum packaging method is disclosed, such as Figures 4 to 8 ,as well as Figure 20 As shown, the vacuum packaging method includes:

[0089] S100, arranging a plurality of vacuum pumping stations 1000 along a first direction, each vacuum pumping station 1000 being provided with a vacuum chamber 1;

[0090] S200, a plurality of transfer stations 4000 are arranged parallel to the first direction, and the transfer stations 4000 correspond to the vacuum chambers 1 one by one;

[0091] S300, sending the packaging bags filled with materials to the transfer stations 4000;

[0092] S400: When packaging bags are arranged at all the transfer stations 4000, the vacuum chamber 1 receives the packaging bags corresponding to the transfer stations 4000;

[0093] S500: The packaging bags are evacuated and sealed in the vacuum chamber 1. During this process, the packaging bags filled with materials are sent to the transfer stations 4000.

[0094] S600: The vacuum chamber 1 releases the processed packaging bag.

[0095] In a preferred technical solution of this embodiment, the step of delivering the packaging bags filled with materials to each of the transfer stations 4000 includes:

[0096] S301. Except for the first transfer station 4000, the remaining transfer stations 4000 are respectively provided with intermediate carriers for temporarily storing packaging bags and transfer mechanisms for transporting packaging bags.

[0097] S302. The transfer mechanism includes a transfer carrier 2 for grabbing packaging bags and a moving component that drives the transfer carrier 2 to move. Several transfer carriers 2 are arranged parallel to the first direction. The number of the transfer carriers 2 is consistent with the number of vacuum chambers 1. The moving component includes a first moving mechanism 4 that moves back and forth parallel to the first direction. All the transfer carriers 2 are driven by the first moving mechanism 4 to move back and forth synchronously to transfer packaging bags.

[0098] In a preferred technical solution of this embodiment, the vacuum chamber 1 receives the packaging bags corresponding to the transfer stations 4000, including:

[0099] S401 , the vacuum chamber 1 moves to the transfer station 4000 to receive the packaging bags delivered by the transfer mechanism, and then the vacuum chamber 1 returns to the vacuum pumping station 1000 .

[0100] In this embodiment, the vacuum chamber 1 can first move to the transfer station 4000 to wait, and then receive the packaging bags brought by the transfer mechanism, or the transfer mechanism can first carry the packaging bags to the transfer station 4000, and then the vacuum chamber 1 moves to the transfer station 4000 to receive the packaging bags. As a preferred implementation method, this embodiment specifically adopts the former, which can further improve the transfer efficiency of the packaging bags and avoid motion interference caused by the transfer mechanism of the vacuum chamber 1 in the post-movement and waiting state.

[0101] Therefore, in the vacuum packaging process of this embodiment, there are the following process stages:

[0102] In the first process stage, transfer carrier 1 201 transfers the packaging bag from input station 2000 to intermediate station 1 3001. Transfer carrier 2 202 grabs the packaging bag at intermediate station 1 3001 and moves to intermediate station 2 3002. Transfer carrier N grabs the packaging bag at intermediate station N-1 and moves to one side of the station, driving each transfer carrier 2 to synchronously reciprocate. During this repeated action, a packaging bag passes through intermediate station 1 3001 and intermediate station 2 3002 in sequence until it is located at intermediate station N-1. A packaging bag passes through intermediate station 1 3001 and intermediate station 2 3002 in sequence until it is located at intermediate station N-2. Through this step-by-step action, after being received at input station 2000, the packaging bag gradually fills all intermediate stations 3000.

[0103] Second process stage: Transfer carrier 1 201 receives packaging bags at input station 2000, and transfer carrier 2 202 to transfer carrier N receive packaging bags from intermediate station 1 3001 to intermediate station N-1.

[0104] The third process stage: synchronously driving each transfer carrier 2 after receiving the packaging bag to move to the corresponding transfer station 1 4001 to transfer station N;

[0105] In the fourth process stage, the packaging bags received by the transfer station 1 4001 to the transfer station N are correspondingly transferred to the vacuum pumping station 1 1001, the vacuum pumping station 2 1002 ... the vacuum pumping station N, so that all the packaging bags are vacuum-packed synchronously.

[0106] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A vacuum packaging device, characterized in that: including a vacuum chamber and a transfer mechanism; The vacuum packaging equipment is provided with N vacuum pumping stations along the first direction, N≥2, N is an integer, and each vacuum pumping station is provided with the vacuum chamber; The transfer mechanism includes a transfer carrier for grabbing packaging bags and a moving component that drives the transfer carrier to move. The transfer carrier receives packaging bags containing materials output by the preceding packaging equipment at the input station. The transfer mechanism is provided with intermediate stations. The moving component drives the transfer carrier to move to arrange the packaging bags to each of the intermediate stations. There are N-1 intermediate workstations, the input workstation and the N-1 intermediate workstations constitute a transfer workstation, and the transfer workstations are arranged parallel to the first direction so as to correspond one-to-one with the vacuum pumping workstations; or there are N intermediate workstations, the N intermediate workstations constitute a transfer workstation, and the transfer workstations are arranged parallel to the first direction so as to correspond one-to-one with the vacuum pumping workstations; The vacuum chamber moves between the vacuum pumping station and the transfer station to receive the packaging bag, or the moving component has a movable mechanism that moves between the transfer station and the vacuum pumping station to deliver the packaging bag into the vacuum chamber.

2. A vacuum packaging device according to claim 1, characterized in that: Each of the intermediate workstations is respectively provided with an intermediate carrier for temporarily storing packaging bags. N transfer carriers are arranged parallel to the first direction. The moving assembly includes a first moving mechanism that moves back and forth parallel to the first direction. The N transfer carriers are driven by the first moving mechanism to move synchronously back and forth to transfer packaging bags.

3. A vacuum packaging device according to claim 2, characterized in that: The intermediate carrier includes a holding portion 1 and a holding portion 2 that are arranged opposite to each other. The holding portion 1 and the holding portion 2 cooperate with the sides of the packaging bag to fix the packaging bag. The transfer carrier cooperates with the mouth of the packaging bag to grab the packaging bag.

4. A vacuum packaging device according to claim 2, characterized in that: The moving assembly further includes a second moving mechanism, and the transfer vehicle is driven by the second moving mechanism to move perpendicularly to the first direction.

5. The vacuum packaging device according to claim 1, characterized in that: The vacuum chamber comprises a first chamber body and a second chamber body that are openable and closable. The first chamber body is provided with a holding mechanism for fixing the packaging bag. The first chamber body is driven by a third moving mechanism to move between the vacuuming station and the transfer station to receive the packaging bag. A sealing mechanism is provided on the first cabin and / or the second cabin.

6. The vacuum packaging device according to claim 5, characterized in that: The holding mechanism includes a first clamping member and a second clamping member for clamping two sides of the packaging bag; The second cabin is further provided with an expansion and contraction mechanism, which is associated with at least one of the first clamping member and the second clamping member, and the expansion and contraction mechanism is actuated to drive the first clamping member and the second clamping member to move relative to each other.

7. A vacuum packaging device according to claim 6, characterized in that: The expansion and contraction mechanism includes a screw and a driving mechanism 1 for driving the screw to rotate, wherein the screw is threadedly connected to at least one of the first clamping member and the second clamping member; The cabin body 1 is further provided with a guide rod, the clamping member 1 and the clamping member 2 are slidably connected to the guide rod, and the axis of the guide rod is parallel to the axis of the screw.

8. The vacuum packaging device according to claim 1, characterized in that: The vacuum chamber includes a plurality of workstations arranged in parallel, and the transfer vehicle correspondingly includes a plurality of transfer units arranged in parallel.

9. The vacuum packaging device according to claim 1, characterized in that: The transfer carrier includes carrier one and carrier two. Carrier two rotates relative to carrier one under the action of driving mechanism two to clamp the mouth of the packaging bag. The rotation plane of carrier two is parallel to the first direction.

10. The vacuum packaging device according to claim 1, characterized in that: It also includes an output mechanism for receiving the heat-sealed packaging bags released from the vacuum chamber to transport the packaging bags out of the vacuum packaging equipment.

11. A vacuum packaging method, characterized in that: include: Several vacuum pumping stations are arranged along the first direction, and each vacuum pumping station is provided with a vacuum chamber; A plurality of transfer stations are arranged parallel to the first direction, and the transfer stations correspond to the vacuum chambers one by one; Delivering the packaging bags filled with materials to the transfer stations; When packaging bags are arranged at all the transfer stations, the vacuum chamber receives the packaging bags corresponding to the transfer stations respectively; The packaging bags are vacuumed and sealed in the vacuum chamber, and during this process, the packaging bags filled with materials are sent to each transfer station; The vacuum chamber releases the finished packaging bag.

12. A vacuum packaging method according to claim 11, characterized in that: The step of delivering the packaging bags filled with materials to each transfer station includes: Except for the first transfer station, the other transfer stations are respectively equipped with intermediate carriers for temporarily storing packaging bags and transfer mechanisms for transporting packaging bags; The transfer mechanism includes a transfer carrier for grabbing the packaging bags and a moving component that drives the transfer carrier to move. Several transfer carriers are arranged parallel to the first direction. The number of the transfer carriers is consistent with the number of vacuum chambers. The moving component includes a first moving mechanism that moves back and forth parallel to the first direction. All the transfer carriers are driven by the first moving mechanism to move back and forth synchronously to transfer the packaging bags.

13. A vacuum packaging method according to claim 11, characterized in that: The vacuum chamber receives the packaging bags corresponding to the transfer stations, including: The vacuum chamber moves to the transfer station to receive the packaging bags delivered by the transfer mechanism, and then the vacuum chamber returns to the vacuum pumping station.

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