Vacuum packaging equipment and packaging machine

Abstract

The invention belongs to the technical field of packaging equipment, and discloses vacuum packaging equipment which comprises a driving disc with a rotating shaft driven by a power mechanism to rotate in the transverse direction, a plurality of vacuum cabins are distributed on the driving disc in the rotating circumferential direction of the driving disc, and packaging bag carriers and heat sealing mechanisms are arranged in the vacuum cabins. The vacuum cabin comprises a cabin body rotationally connected to the driving disc and a cover body hinged to the cabin body; a posture keeping mechanism is arranged between the driving disc and the cabin body so as to keep the cabin body in a preset posture in the rotating process of the driving disc; or the cabin body keeps the preset posture in the rotating process of the driving disc through the self weight; the device further comprises a vacuumizing mechanism which is matched with the vacuum cabin to vacuumize. The vacuum cabin moves in the annular circumferential direction, the arrangement length of vacuum packaging equipment is effectively reduced, the arrangement area is saved, meanwhile, multi-station vacuum packaging is achieved, and the process efficiency is effectively improved. The invention further discloses a packaging machine with the vacuum packaging equipment.

Description

Technical Field

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

[0002] In the food and chemical industries, vacuum packaging machines are often used to vacuum-pack materials to ensure storage quality and time. One type of vacuum packaging machine is a vacuum chamber packaging machine, which has an openable and closable cabin. After the packaging container containing materials is placed in the cabin, the cabin is closed and then vacuuming and sealing are performed. Existing vacuum chamber packaging machines usually only have a fixed single-station vacuum chamber, which has low work efficiency. It is necessary to wait for the vacuuming operation of the previous batch of packaging containers containing materials to be completed before the next batch of packaging containers containing materials can be placed. In order to ensure that the vacuum degree meets the requirements, the time for a single vacuuming operation is long, which leads to low overall work efficiency. If the production capacity is to be increased, multiple vacuum packaging machines need to be operated in parallel or the model size of the vacuum packaging machine needs to be significantly increased, which is costly and occupies a large space. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a vacuum packaging device, which enables the vacuum chamber to move in a circular circumferential direction, effectively reduces the layout length of the vacuum packaging device, saves the layout area, and realizes multi-station vacuum packaging, effectively improving the process efficiency. The present invention also discloses a packaging machine having the above vacuum packaging device.

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

[0005] A vacuum packaging device, comprising a drive disk with a rotating shaft driven by a power mechanism and arranged along a horizontal direction, the drive disk is provided with a plurality of vacuum chambers distributed along its rotation circumference, a packaging bag carrier and a heat sealing mechanism are arranged in the vacuum chamber, and the vacuum chamber comprises a chamber body rotatably connected to the drive disk and a cover body hinged on the chamber body;

[0006] A posture maintaining mechanism is provided between the driving disk and the cabin body to maintain the cabin body in a preset posture during the rotation of the driving disk; or the cabin body maintains the preset posture by its own weight during the rotation of the driving disk;

[0007] It also includes a vacuum pumping mechanism, which cooperates with the vacuum chamber to draw a vacuum.

[0008] The present application utilizes a vacuum chamber with circular motion instead of a vacuum chamber with linear motion, which can effectively reduce the area of ​​the layout site, and multiple vacuum chambers can be configured to move in a circular motion path, thereby meeting the requirements of multi-station operations. While the vacuum chamber rotates circumferentially, the packaging bag should be prevented from tipping over, so the posture of the chamber body needs to be maintained. The present application utilizes a holding mechanism or the deadweight of the chamber body to achieve posture maintenance, so that after the packaging bag carrier clamps the packaging bag, the packaging bag can maintain a posture with the bag mouth facing upward, thereby improving the stability of the vacuum packaging.

[0009] Preferably, the vacuum pumping mechanism comprises:

[0010] A stationary air distribution plate and an air guide plate connected to the driving plate;

[0011] Among them, the air distribution disk and the air guide disk are rotatably matched, and the pre-vacuum position, vacuum pumping section and vacuum breaking position are arranged in sequence on the matching surface of the air distribution disk along the rotation circumference. The air guide disk is provided with an air duct, one end of which is connected to the vacuum chamber, and the other end of the air duct slides along the matching surface of the air distribution disk to periodically connect with the pre-vacuum position, vacuum pumping section and vacuum breaking position.

[0012] During the vacuuming process, the air duct sequentially and cyclically cooperates with the pre-vacuuming position, the vacuuming section, and the vacuum breaking position. The structure is simple and compact, and can well realize the vacuuming and heat sealing actions, thereby meeting the sealing requirements of the packaging bag. It also has good smoothness and can effectively improve the process efficiency.

[0013] Preferably, the retaining mechanism is a gear linkage mechanism or a cam linkage mechanism.

[0014] The structure is simple and easy to set up, and can well meet the posture maintenance requirements of the vacuum cabin.

[0015] Preferably, when the holding mechanism is a gear linkage mechanism, the gear linkage mechanism comprises:

[0016] A gear 1 is disposed at the center of the driving disk, wherein the gear 1 is arranged stationarily; and

[0017] Gear 2 connected to the cabin, wherein gear 2 is drivingly connected to gear 1;

[0018] The rotation of the driving disk relative to the gear one and the rotation of the gear two relative to the driving disk have the same speed and opposite directions;

[0019] When the holding mechanism is a cam linkage mechanism, the cam linkage mechanism comprises:

[0020] A stationary fixed disk, the fixed disk being located on one side of the driving disk, the fixed disk being provided with at least two annular grooves; and

[0021] A retaining plate, the retaining plate is connected to the cabin body and is provided with a guide portion that is slidably matched with the annular groove;

[0022] Wherein, the distance from the rotation axis of the cabin body on the driving disk to the rotation axis of the driving disk is consistent with the radius of the annular groove.

[0023] When the holding mechanism is a gear linkage mechanism, the gear 2 moves with the cabin body. During this process, since the gear 1 is stationary and the gear 1 and the gear 2 are connected in transmission, the gear 2 drives the cabin body to rotate in the opposite direction relative to the driving disk. Therefore, on the basis that the rotation directions of the gear 1 and the gear 2 are opposite and the rotation speeds are consistent, it can be ensured that the vacuum cabin is always in a preset posture to meet actual use requirements; and when the holding mechanism is a cam linkage mechanism, the holding disk is connected to the cabin body. Since there are mutually matching annular grooves and guide portions between the holding disk and the fixed disk, the holding disk moves along a preset path during the process of the holding disk following the rotation of the driving disk. Since the distance from the rotation axis of the cabin body on the driving disk to the rotation axis of the driving disk is consistent with the radius of the annular groove, the holding disk is prevented from rotating relative to the fixed disk when moving along the preset path, so that the vacuum cabin can maintain a preset posture when following the driving disk.

[0024] Preferably, the parameters of gear one are consistent with the parameters of gear two.

[0025] When the parameters of the gear one and the gear two are consistent, the transmission structure between the gear one and the gear two is simple, and the gear one and the gear two can be well guaranteed to maintain a consistent rotation speed.

[0026] Preferably, the driving disc is further provided with a limit driving part; the cover body is provided with a linkage part for cooperating with the limit driving part, and during the rotation of the driving disc, the limit driving part and the linkage part switch between the limit state and the separation state;

[0027] When the limit drive part and the linkage part are in a limit state, the linkage part contacts the limit drive part, and the cover body is limited and blocked and moves with the driving disk to open the cover; when the limit drive part and the linkage part are in a separation state, the linkage part is separated from the limit drive part, and the cover body rotates synchronously with the cabin body to keep the cover closed.

[0028] In the prior art, the vacuum chamber is usually opened and closed by an actuating mechanism, and the assembly of the actuating mechanism takes up much space and usually requires an independent power source, which makes the overall structure complex and has a high failure rate. Therefore, the present application provides a limit drive part and a linkage part that cooperate with each other, and utilizes the limit drive part to block the linkage part to avoid always keeping the chamber body and the cover body tightly closed during the movement of the drive disk. In other words, when the vacuum chamber follows the rotation of the drive disk to the position where the vacuum chamber needs to be opened, the limit drive part and the linkage part can be used to drive the cover body relative to the chamber body, thereby realizing the placement or removal of the packaging bag at a preset position; this structure does not require the provision of an active actuating mechanism, and therefore does not require an additional power source. Therefore, while simplifying the structure, it can reduce the debugging time and also reduce the number of failures caused by a large number of transmission components.

[0029] Preferably, the cover body and the cabin body are connected via a multi-point hinge structure, and the multi-point hinge structure comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hinged between the cabin body and the cover body.

[0030] The multi-point hinge structure formed by the connecting rod 1 and the connecting rod 2 can reduce the rotation radius of the cover body relative to the cabin body, and can completely separate the cover body from the cabin body during the process of opening the cover, thereby reducing the volume of the structure and avoiding failure of the packaging bag to enter the cabin due to obstruction during the process.

[0031] A packaging machine, comprising a front packaging device, a transfer device, and a vacuum packaging device as described above;

[0032] The front packaging device is used to fill the material into the packaging bag, and the transfer device transfers the packaging bag filled with the material to the vacuum chamber of the vacuum packaging device in the open state.

[0033] The structure is simple, and on the basis of the circumferential rotation of the vacuum chamber, the overall layout area of ​​the packaging machine is greatly reduced, which is conducive to the miniaturization of the entire machine.

[0034] Preferably, the transfer device includes a primary transfer device, a transition fixture and a secondary transfer device;

[0035] The primary transfer device includes a transverse movement mechanism 1 and a clamp 1, and the secondary transfer device includes a swing mechanism and a clamp 2;

[0036] The transverse movement mechanism 1 is arranged between the bag receiving position and the transition clamp, so as to transversely move the packaging bag filled with materials at the bag receiving position to the transition clamp toward the bag receiving position through the clamp 1;

[0037] The swing mechanism is arranged between the transition clamp and the bag delivery position, and the swing mechanism drives the second clamp to maintain a preset posture and perform a swinging motion, so as to transport the packaging bag filled with materials from the transition clamp to the bag delivery position with the bag opening facing upward.

[0038] The transverse movement mechanism 1 can realize the transverse transfer of the packaging bag, and the reasonable setting distance between the front packaging device and the vacuum packaging equipment can well meet the transverse transition of the packaging bag; since the transition clamp and the second clamp are relatively arranged, when the transition clamp and the second clamp are connected to the packaging bag, the second clamp can directly clamp the packaging bag on the transition clamp to transfer the packaging bag to the vacuum chamber of the vacuum packaging equipment. The structure is compact and easy to set up, and can avoid the motion interference problem caused by the complex structure; in addition, since the transverse movement mechanism 1 is arranged between the bag receiving position and the transition clamp, and the swing mechanism is arranged between the transition clamp and the bag feeding position, the present application utilizes the space reserved between the primary transfer device and the secondary transfer device, which can well avoid the motion interference of the swing mechanism, thereby improving the stability of the secondary transfer device in receiving the packaging bag.

[0039] Preferably, the swing mechanism comprises:

[0040] A base, a swing arm and a seat body, one end of the swing arm is hinged to the base body, and the other end is hinged to the seat body, at least two swing arms are provided to form a parallelogram mechanism with the base body and the seat body, and the second clamp is arranged on the seat body.

[0041] The parallelogram mechanism can maintain a preset posture of the packaging bag, thereby preventing the material loaded into the packaging bag from falling out of the packaging bag.

[0042] Preferably, the second clamp is connected to the base body via a second transverse movement mechanism.

[0043] The second transverse movement mechanism can facilitate the clamping of the packaging bag by the second clamp. When the second clamp releases the packaging bag, the subsequent process device clamps the packaging bag. If the second clamp is directly reset by the original swing mechanism, it is easy for the second clamp to interfere with the packaging bag, which may cause the packaging bag to fall off. Therefore, the second transverse movement mechanism is used to move before the swing mechanism drives the second clamp to reset. The packaging bag has a certain flexibility. The second clamp moves back laterally under the drive of the second transverse movement mechanism. The clamping part on one side of the second clamp will push the packaging bag to deform so as to pass over the packaging bag, thereby realizing the complete separation of the second clamp and the packaging bag. Then the swing mechanism moves again to make the second clamp reset to the vicinity of the transition clamp. Then the second transverse movement mechanism drives the second clamp to move forward laterally. Similarly, the clamping part on one side of the second clamp will push the packaging bag to deform so as to pass over the packaging bag. Then the second clamp clamps and receives a new packaging bag filled with materials on the transition clamp.

[0044] Preferably, the transition clamp comprises a clamp seat 1 and a driving rod, the driving rod and the clamp seat 1 are slidably matched, one end of the driving rod is provided with a clamp seat 2, and the other end of the driving rod is provided with a power source for driving the axial movement thereof, so that the clamp seat 2 reciprocates relative to the clamp seat 1 to clamp the packaging bag or release the packaging bag;

[0045] One of the clamping seat 1 and the driving rod is provided with a guide groove and the other is provided with a guide block, and the guide groove and the guide block are slidably matched;

[0046] The guide groove is a spiral structure.

[0047] During the opening and closing process of the transition clamp, in addition to axial movement relative to clamp seat 1, clamp seat 2 also produces relative rotational movement. Therefore, after the transition clamp is opened, clamp seat 1 moves toward the transition clamp under the drive of the transverse movement mechanism 1. Due to the misalignment between clamp seat 2 and clamp seat 1 and the relative angle, clamp seat 2 moves away from the front area of ​​clamp seat 1, that is, clamp seat 2 can avoid the packaging bag clamped by clamp seat 1 during the movement of clamp seat 1. When clamp seat 1 transfers the packaging bag into place, the transition clamp is reset to restore the clamping state to clamp the packaging bag. Therefore, when the transition clamp is in an open clamping state, the packaging bag can move freely along the opening and closing direction of the transition clamp. After the packaging bag is moved into place, it is clamped by the transition clamp, avoiding the use of a complex structure to avoid the packaging bag, thereby also ensuring the clamping tightness of the packaging bag by clamp 1, thereby avoiding the packaging bag from falling off clamp 1 due to the obstruction of clamp seat 2, thereby improving the transportation stability of the packaging bag.

[0048] Preferably, the first clamp, the transition clamp, and the second clamp are each arranged in plurality side by side.

[0049] In the present application, in addition to the transition clamp realizing multi-station packaging bag transfer, clamp one and clamp two can also clamp multiple packaging bags at one time, thereby effectively improving the transfer efficiency of the packaging bags.

[0050] Preferably, the transition clamp is used to clamp the side of the packaging bag, the clamp one and the clamp two are used to clamp the mouth of the packaging bag, the transition clamp and the clamp one are staggered, and the transition clamp and the clamp two are staggered.

[0051] The structure is simple and realizes staggered clamping of the packaging bag by clamps at different positions, thereby avoiding movement interference of the clamps, better realizing the transfer and transportation of the packaging bag, and also meeting the clamping requirements of the packaging bag.

[0052] Compared with the prior art, the present invention has a simple structure and is easy to use. It can open the vacuum chamber at a preset position and keep the vacuum chamber in a closed state in a certain working section during the rotation of the driving disk, thereby meeting the specific needs of vacuum extraction and heat sealing. The present invention can also keep the vacuum chamber in a preset posture during use, thereby ensuring that the material in the packaging bag falls out of the bag, while also ensuring the heat sealing effect. The present invention can avoid interference with the clamping action of the packaging bag by the first clamp, the second clamp, and the transition clamp, effectively improving the transportation efficiency of the packaging bag, and has the advantages of simple and compact structure and high transportation stability. The present invention uses fewer transition clamps not only to avoid interference with the movement of the packaging bag, but also to further improve the compactness of the transportation device on the basis of satisfying the clamping of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of a vacuum packaging device according to an embodiment of the present invention in which a driving disk on one side is hidden;

[0054] Figure 2 for Figure 1 Side view of

[0055] Figure 3 A schematic diagram of opening the vacuum chamber in an embodiment of the present invention;

[0056] Figure 4 A schematic diagram of closing the vacuum chamber cover in an embodiment of the present invention;

[0057] Figure 5 for Figure 4 A front view of

[0058] Figure 6 for Figure 1 A magnified image of point A;

[0059] Figure 7 is a schematic diagram of a holding mechanism in an embodiment of the present invention;

[0060] Figure 8 is a schematic diagram of a holding mechanism in an embodiment of the present invention;

[0061] Fig. 9 This is a schematic diagram of a state where the vacuum chamber is located at the first working position in an embodiment of the present invention;

[0062] Fig.10 This is a schematic diagram of a state where the vacuum chamber is located at the second working position in an embodiment of the present invention;

[0063] Fig.11 This is a schematic diagram of a state where the vacuum chamber is located at the third working position in an embodiment of the present invention;

[0064] Fig.12 This is a schematic diagram of a state where the vacuum chamber is located at the fourth working position in an embodiment of the present invention;

[0065] Fig.13 This is a schematic diagram of a state where the vacuum chamber is located at the fifth working position in an embodiment of the present invention;

[0066] Fig.14 is a schematic diagram of a packaging machine according to an embodiment of the present invention;

[0067] Fig.15 is a schematic diagram of a transfer device in an embodiment of the present invention;

[0068] Fig.16 for Fig.15 Front view of the base (part of the base is hidden);

[0069] Fig.17 for Fig.15 A top view of

[0070] Fig.18 Schematic diagram of the closed clamping state of the transition clamp in an embodiment of the present invention;

[0071] Fig.19 Schematic diagram of the open clamp state of the transition clamp in an embodiment of the present invention;

[0072] Fig. 20 A schematic diagram of a configuration of a power source in an embodiment of the present invention;

[0073] Fig.21 for Fig.15 A magnified view of point B;

[0074] Fig. 22 for Fig.15 Enlarged view of point C;

[0075] Fig.23 It is a schematic diagram of the arrangement of the vacuum pumping mechanism in an embodiment of the present invention;

[0076] Fig.24 is a schematic diagram of an air guide disk in an embodiment of the present invention;

[0077] Fig.25 Schematic diagram of a gas distribution disk in an embodiment of the present invention.

[0078] In the figure: 1-driving plate; 2-cabin; 3-cover; 4-limiting driving part; 5-linkage part; 6-link rod 1; 7-link rod 2; 8-roller; 9-gear 1; 10-gear 2; 11-synchronous belt; 12-transition gear; 13-tensioning wheel; 14-fixing plate; 15-holding plate; 16-circular groove; 17-guide part; 18-transition clamp; 19-transverse mechanism 1; 20-clamp 1; 21-swing mechanism; 22-clamp Tool 2; 23-base; 24-swing arm; 25-seat body; 26-transverse movement mechanism 2; 27-driven gear; 28-driving gear; 29-clamp seat 1; 30-driving rod; 31-clamp seat 2; 32-power source; 33-guide groove; 34-guide block; 35-spring; 36-support member; 37-driving member; 38-support slider; 39-slide; 40-front packaging device; 41-receiving slope; 42-belt conveyor. DETAILED DESCRIPTION

[0079] 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.

[0080] like Figure 1 , Figure 2 As shown, a vacuum packaging equipment comprises a driving disk 1 with a rotating shaft driven by a power mechanism and arranged along a horizontal direction, the driving disk 1 is provided with a plurality of vacuum chambers distributed along its rotation circumference, a packaging bag carrier and a heat sealing mechanism are arranged in the vacuum chamber, the vacuum chamber comprises a chamber body 2 rotatably connected to the driving disk 1 and a cover body 3 hinged to the chamber body 2; a posture maintaining mechanism is arranged between the driving disk 1 and the chamber body 2 to maintain the chamber body 2 in a preset posture during the rotation of the driving disk 1; or, the chamber body 2 maintains a preset posture during the rotation of the driving disk 1 by its own weight; and also comprises a vacuum pumping mechanism, which cooperates with the vacuum chamber to perform vacuum pumping.

[0081] In this embodiment, the packaging bag carrier is specifically arranged in the cabin 2. When the cover 3 is closed, the cover 3 and the cabin 2 form a closed vacuum cabin. The vacuum cabin rotates with the driving disk 1, and in this process, a vacuum is performed by a vacuum pumping mechanism. The heat sealing mechanism includes a heat sealing member 1 arranged in the cabin 2 and a heat sealing member 2 arranged in the cover 3. Therefore, after the vacuum pumping mechanism performs the vacuum pumping action, the heat sealing member 1 and the heat sealing member 2 can perform a heat sealing action on the packaging bag in a vacuum environment, thereby achieving the packaging of the packaging bag. The vacuum pumping mechanism can be used to pump vacuum through an annular air distribution rail, on which a plurality of vent holes 1 are arranged; the vacuum chamber is provided with vent holes 2; the vacuum chamber moves with the driving disk 1, and when it moves to the point where vent hole 1 is directly connected to vent hole 2, the driving disk 1 stops rotating, the valve at one vent hole is opened and the vacuum pumping operation is performed. After a preset time, the valve at one vent hole is closed, and the driving disk 1 rotates again. Due to the vacuum adsorption effect, the vacuum chamber is tightly attached to the rail surface of the air distribution rail through the fitting surface, and the vacuum chamber will not be broken in the process of moving along the air distribution rail to the next vent hole 1, that is, the vacuum chamber will maintain its current vacuum The vacuum state is moved forward, and when the vacuum chamber moves to the point where the second vent hole is directly connected to the next vent hole one, the valve at one of the vent holes is opened to perform the vacuum operation again after a preset time and then closed, and this cycle is repeated for multiple mobile vacuuming operations. Each vacuuming time is short, so that the dynamic and static time ratio of the production line is more reasonable, thereby effectively improving the overall processing efficiency, and effectively improving the vacuuming efficiency and effect, meeting the application requirements of high vacuum degree. It can be seen that after the vacuum degree in the vacuum chamber meets the requirements, the heat sealing component one and / or the heat sealing component two are driven to heat-seal the packaging bag, and finally the vacuum is broken through the second vent hole, so that the cover body 3 can be opened relative to the chamber body 2. In another embodiment, the vacuum pumping mechanism operates by plug-in vacuum pumping, that is, the second vent hole of the vacuum chamber has a one-way valve. When the vacuum pumping mechanism moves to the corresponding position, the telescopic tube provided by the vacuum pumping mechanism plugs into the second vent hole to perform vacuum pumping. After the vacuum degree in the vacuum chamber meets the requirements, the telescopic tube withdraws from the second vent hole, and the vacuum chamber still meets the corresponding vacuum degree requirements, thereby achieving vacuum heat sealing of the packaging bag. In this embodiment, vacuum pumping is achieved by an air slip ring, such as Figure 23 to Figure 25As shown, the vacuum mechanism includes a stationary air distribution disk 43 and an air guide disk 44 connected to the driving disk 1, the air distribution disk 43 and the air guide disk 44 are rotatably matched, and the mating surface of the air distribution disk 43 is provided with a pre-vacuum position 45, a vacuum section 46 and a vacuum breaking position 47 in sequence along the rotation circumference. The vacuum section 46 can be a plurality of discrete points distributed along the rotation circumference, or a continuous arc segment covering the rotation circumference. An air duct 48 is provided on the air guide disk 44, one end of the air duct 48 is connected to the vacuum chamber, and the other end of the air duct 48 slides along the mating surface of the air distribution disk 43 to periodically communicate with the pre-vacuum position 45, the vacuum section 46 and the vacuum breaking position 47. After the packaging bag is sent into the vacuum chamber, the driving disk 1 drives the vacuum chamber to rotate until the air passage 48 is connected to the pre-vacuum position 45, and the vacuum chamber is pre-vacuumed. Under the action of negative pressure, the cover body 3 and the chamber body 2 are fully closed to achieve sealing; then the driving disk 1 continues to rotate to allow the vacuum chamber to enter the vacuum section 46, and the vacuum chamber is vacuumed for a preset time while moving along the vacuum section 46 to ensure that the vacuum degree meets the requirements, and then the packaging bag is sealed; the driving disk 1 continues to rotate to allow the vacuum chamber to rotate until the air passage 48 is connected to the vacuum breaking position 47, and gas is introduced into the vacuum chamber to break the vacuum, and then the cover body 3 can be opened relative to the chamber body 2 to release the processed packaging bag, and then a new packaging bag can be sent into the vacuum chamber to cycle the vacuum packaging process. For example, please refer to Figures 9 to 13 When the vacuum chamber is located at the fourth station, the vacuum chamber is correspondingly at the pre-vacuuming position 45; when the vacuum chamber is located in a path from the fourth station to the first station, the vacuum chamber moves in the vacuuming section 46; when the vacuum chamber is located at the first station, the vacuum chamber is correspondingly at the vacuum breaking position 47; after the above cycle, the process cycle of the vacuum packaging equipment is completed.

[0082] In order to ensure that the packaging bag maintains a preset posture, the cabin 2 rotates relative to the driving disk 1 to maintain the preset posture during the rotation of the driving disk 1. The cabin 2 can be achieved by a holding mechanism or by its own weight. In this embodiment, a posture holding mechanism is provided between the driving disk 1 and the cabin 2 to keep the cabin 2 in a preset posture during the rotation of the driving disk 1. The holding mechanism is a gear linkage mechanism or a cam linkage mechanism.

[0083] like Figure 2 and Figure 7As shown, when the holding mechanism is a gear linkage mechanism, the gear linkage mechanism includes a gear 19 arranged at the center of the driving disk 1, and a gear 2 10 connected to the cabin 2; the gear 19 is arranged statically; the gear 2 10 is connected to the gear 19 in transmission connection; the rotation of the driving disk 1 relative to the gear 19 is at the same speed and in the opposite direction as the rotation of the gear 2 10 relative to the driving disk 1. Since the gear 2 10 is connected to the cabin 2, it rotates with the driving disk 1. Since the gear 2 10 is connected to the gear 19 in transmission connection, the gear 2 10 that rotates with the driving disk 1 will rotate in the opposite direction relative to the rotation direction of the driving disk 1 due to the static state of the gear 19. When the speeds of the gear 19 and the gear are consistent, the cabin 2 is always kept in a preset posture, so that the packaging bag placed in the cabin 2 is in a posture with the bag opening facing upward, and the material will not fall out of the packaging bag, thereby meeting the vacuum heat sealing requirements for the packaging bag. In order to simplify the transmission structure between the gear 19 and the gear 2 10, the parameters of the gear 19 are consistent with the parameters of the gear 2 10. Therefore, as shown in Figure 2 As shown, the gear 1 9 and the gear 2 10 are connected by a synchronous belt 11 or a chain transmission so that the rotation of the drive plate 1 relative to the gear 1 9 and the rotation of the gear 2 10 relative to the drive plate 1 have the same speed and opposite directions. Figure 7 As shown, gear 1 9 and gear 2 10 can also be connected by transmission via a transition gear 12.

[0084] like Figure 2 As shown, in this embodiment, the driving disk 1 is provided with a plurality of vacuum chambers along its circumference. Therefore, when the gear 1 9 and the gear 2 10 are in transmission connection, the synchronous belt 11 or the chain simultaneously meshes with the gear 1 9 and the gear 2 10, and the posture of all the vacuum chambers can be maintained through the holding mechanism. Of course, a tensioning wheel 13 can also be added, and the tensioning wheel 13 can realize the reversal of the synchronous belt 11 or the chain and increase the contact area with the gear 1 9 and the gear 2 10 to ensure the driving effect. In addition, as Figure 7 As shown, when the transition gear 12 is used for transmission connection, a transition gear 12 is provided between the gear 2 10 and the gear 1 9 corresponding to each cabin 2, so that when the gear 1 9 rotates, all the transition gears 12 rotate synchronously, and the power is synchronously transmitted to the gear 2 10 corresponding to any transition gear 12, and the synchronous posture maintenance of all the cabins 2 can also be achieved.

[0085] like Figure 8As shown, when the holding mechanism is a cam linkage mechanism, the difference from the above-mentioned gear linkage mechanism is that the cam linkage mechanism includes a stationary fixed disk 14 and a holding disk 15; the fixed disk 14 is located on one side of the driving disk 1 (hidden in the figure for the convenience of display), and the fixed disk 14 is provided with at least two annular grooves 16; the holding disk 15 is connected to the cabin body 2, and is provided with a guide portion 17 that slides in the annular groove 16; the distance from the rotation axis of the cabin body 2 on the driving disk 1 to the rotation axis of the driving disk 1 is consistent with the radius of the annular groove 16. In this embodiment, the diameters of the multiple annular grooves 16 are consistent, and the distance from the rotation axis of the cabin body 2 on the driving disk 1 to the rotation axis of the driving disk 1 is consistent with the radius of the annular groove 16. The fixed disk 14 in this embodiment is provided with two intersecting annular grooves 16. During the rotation of the driving disk 1, the retaining disk 15 rotates along the circumference of the driving disk 1 along with the cabin body 2 as a whole, and the guide portion 17 provided on the retaining disk 15 slides along the corresponding annular groove 16. The orientation of the two guide portions 17 relative to the hinge point of the cabin body 2 on the driving disk 1 remains unchanged. For example, one guide portion is always located on the upper left side of the hinge point of the cabin body 2 on the driving disk 1, and the other guide portion is always located on the upper right side of the hinge point of the cabin body 2 on the driving disk 1. Therefore, during the entire rotation process of the driving disk 1, the retaining disk 15 / cabin body 2 can be kept in a posture-maintaining state at all times. That is to say, in this embodiment, the two guide portions 17 move along the corresponding annular groove 16 at the same speed and direction of movement, thereby ensuring the preset posture of the retaining disk 15, thereby maintaining the preset posture of the cabin body 2.

[0086] In this embodiment, a buffer mechanism is provided between the cabin 2 and the cover 3. When the limit drive part 4 and the linkage part 5 are separated, the cover 3 is in a state of lack of obstruction, so it can rotate downward by its own weight or the return spring. Due to the gravity potential energy, the cover 3 generates an impact force on the cabin 2, which may cause the vacuum cabin to shake, thereby affecting the vacuuming effect and / or the clamping effect and / or the heat sealing effect of the packaging bag. Therefore, a buffer mechanism is provided to avoid a large impact and poor vacuuming and heat sealing effect. The buffer mechanism can be a buffer layer provided on the contact surface of the cabin 2 and / or the cover 3, such as rubber, foam, plastic, etc., and in some other embodiments, the buffer mechanism can also be a buffer spring, a damping device, etc. provided between the cabin 2 and the cover 3.

[0087] In addition, if Figure 1 As shown, in this embodiment, drive disks 1 are provided on both sides of the vacuum chamber, and the two drive disks 1 are transmission-connected and output power through a power mechanism to ensure the movement stability of the vacuum chamber.

[0088] The vacuum chamber can be evacuated during operation, and the vacuum mechanism can achieve the vacuum action by connecting the chamber body 2 or the cover body 3. During the rotation of the driving disk 1, it has a cover opening section and a cover closing section. Therefore, it can be known that when the vacuum chamber moves in the cover opening section, the cover body 3 is opened from the chamber body 2 to load the packaging bag into the vacuum chamber or take out the vacuum chamber. When the vacuum chamber moves in the cover closing section, the cover body 3 closes the chamber body 2, and the vacuum mechanism is used to perform the vacuum operation. Since the chamber body 2 rotates relative to the driving disk 1 to maintain a preset posture during the rotation of the driving disk 1, the vacuum chamber is evacuated in the closed state, and the cover body 3 will be pressed against the chamber body 2 due to the negative pressure, so that the cover body 3 and the chamber body 2 are connected as a rigid whole. The cover body 3 cannot move relative to the cabin body 2. The cover body 3 is maintained in a preset posture along with the cabin body 2. After the vacuum is broken, the cover body 3 recovers the freedom to move relative to the cabin body 2. When the linkage part 5 contacts the limit drive part 4 and is limited, the cabin body 2 cannot be kept closed. The linkage part 5 and the limit drive part 4 simultaneously slide relative to each other. During this process, the cabin body 2 maintains a preset posture, and the cover body 3 rotates along with the drive disk 1, and then the cover body 3 and the cabin body 2 move relative to each other to open the lid. In the open lid state, the packaging bag that needs to be vacuumized can be delivered into the cabin body 2, and then the vacuumization and heat sealing actions are performed in the closed lid state, and then the cycle is returned to the open lid state, and the processed packaging bag is released from the cabin body 2. This cycle realizes the vacuumization and heat sealing process. Specifically, Figures 9 to 13 As shown in FIG. 1 , a schematic diagram of the vacuum chamber rotating clockwise at five different working positions is shown. Fig. 9 As shown, when the vacuum chamber is located at the first position, the linkage part 5 and the limit driving part 4 are just in contact, and the chamber body 2 and the cover body 3 are still closed. At this time, as the driving disk 1 rotates, the vacuum chamber reaches the position shown in FIG. Fig.10 In the second station shown in the figure, the movement of the cover body 3 to maintain the preset posture is blocked due to the blocking of the linkage part 5 by the limit drive part 4. Therefore, the cover body 3 rotates with the drive disk 1 and forms an angle with the cabin body 2, thereby realizing the opening of the cover. Fig.11 In the third station shown, during the continuous rotation of the driving disk 1, the linkage part 5 and the limit driving part 4 slide relative to each other, so that the linkage part 5 is separated from the limit driving part 4, so that the cover body 3 rotates synchronously with the cabin body 2 to keep the cover closed; Fig.12 and Fig.13As can be seen from the fourth and fifth stations, after the cover is closed at the third station, the vacuum chamber is in the closed state at the fourth and fifth stations, at which time the linkage part 5 and the limit drive part 4 are both in the separated state. After the vacuum chamber moves back to the first station, the linkage part 5 and the limit drive part 4 are in contact again, and then the cover body 3 is blocked by the limit position and moves with the drive disk 1 to open the cover. In this embodiment, when the linkage part 5 and the limit drive part 4 are separated, the cover body 3 can be reset by its own gravity to close the cover, and the cover body 3 can also be realized by a reset spring. The above structure is simple and easy to implement.

[0089] In the prior art, in addition to using an action mechanism to realize the relative rotation of the cover body 3 and the cabin body 2, the cover body 3 and the cabin body 2 are generally configured as a single-point hinge. This structure makes the far end of the cover body 3 have a longer rotation radius when the cover body 3 rotates relative to the cabin body 2, which will result in low space utilization and easily cause the packaging bag to fail to be placed in the cabin body 2. Therefore, this embodiment uses a multi-point hinge structure to reduce the rotation radius of the cover body 3. When opening the cover, the cover body 3 is completely separated from the cabin body 2, thereby providing a larger movement space for the packaging bag to ensure successful entry into the cabin. Specifically, Figure 3 and Figure 4 As shown, the cover body 3 is connected to the cabin body 2 through a multi-point hinge structure, and the multi-point hinge structure includes a link rod 1 6 and a link rod 2 7, and the link rod 1 6 and the link rod 2 7 are hinged between the cabin body 2 and the cover body 3. The length of the link rod 1 6 is greater than the length of the link rod 2 7, so that during the opening process, the cover body 3 can move to the upper part of the cabin body 2, thereby reserving enough movement space for the packaging bag, so that the packaging bag can be well placed, and the movement space required for the opening and closing action of the cover body 3 is smaller, which can reduce the operating radius of the entire vacuum device, improve the compactness of the structure, and facilitate better and more compact connection of the bag loading device and the bag discharging device.

[0090] In this embodiment, the linkage part 5 is arranged on the multi-point hinge structure or on the cover body 3. The linkage part 5 can be a part on the cover body 3, or a part on the connecting rod. The part on the connecting rod can also be regarded as an extension of the cover body 3. The linkage part 5 can be a fixed part relative to the cover body 3, or a part that can move to a certain extent relative to the cover body 3, such as some handles with a certain degree of freedom of movement. Further, in order to improve the movement stability between the limit drive part 4 and the linkage part 5, the limit drive part 4 is provided with a roller 8 that cooperates with the linkage part 5, or the limit drive part 4 is a cylindrical structure.

[0091] Based on the vacuum packaging equipment disclosed in the above embodiment, this embodiment further discloses a packaging machine, which also includes a pre-packaging device 40 and a transfer device; the pre-packaging device 40 is used to fill the material into the packaging bag, and the transfer device transfers the packaging bag containing the material to the vacuum chamber of the vacuum packaging device in the open state. Figure 14 to Figure 17 , Fig. 22 As shown, the transfer device includes a primary transfer device, a transition clamp 18 and a secondary transfer device; the primary transfer device includes a transverse movement mechanism 19 and a clamp 20, and the secondary transfer device includes a swing mechanism 21 and a clamp 22; the transverse movement mechanism 19 is arranged between the bag receiving position and the transition clamp 18, so as to laterally move the packaging bag filled with materials at the bag receiving position to the transition clamp 18 facing the bag receiving position through the clamp 20; the swing mechanism 21 is arranged between the transition clamp 18 and the bag delivery position, and the swing mechanism 21 drives the clamp 22 to maintain a preset posture and perform a swinging motion, so as to maintain the packaging bag filled with materials in a posture with the bag mouth facing upward and transport it from the transition clamp 18 to the bag delivery position.

[0092] The packaging bag clamped by the primary transfer device contains materials. When transferring the packaging bag containing materials, the bag mouth is kept moving in an upward posture. Specifically, the packaging bag is clamped at the bag receiving position by a clamp 20, and then the clamp 20 is driven to move horizontally by a transverse mechanism 19, so as to transfer the packaging bag to the transition clamp 18 while maintaining the preset posture of the packaging bag. Then the transition clamp 18 receives the packaging bag containing materials, and the second clamp 22 receives the packaging bag. The second clamp 22 is transferred to the bag delivery position under the action of the swing mechanism 21. It can be seen that the second clamp 22 releases the packaging bag at the bag delivery position, and the packaging bag is received by the packaging bag carrier set in the vacuum chamber. Then the second clamp 22 is reset to the transition clamp 18 to receive a new packaging bag containing materials. Fig.16 and Fig.17 As shown, in this embodiment, the swing mechanism 21 includes a base 23, a swing arm 24 and a seat 25. One end of the swing arm 24 is hinged to the base 23, and the other end is hinged to the seat 25. The swing arm 24 is provided with at least two arms to form a parallelogram mechanism with the base 23 and the seat 25. The second clamp 22 is provided on the seat 25. Further, as Fig.16 As shown, the swing arm 24 is a curved structure having two swing arms 24, the bending directions of the two swing arms 24 are opposite and intersect in the projection of the swing plane. This structure can reduce the swing radius of the base 23 while maintaining the supporting strength, thereby saving movement space and further realizing structural miniaturization.

[0093] like Fig.15 and Fig.16As shown, in this embodiment, the second clamp 22 is connected to the seat body 25 through the second transverse mechanism 26. The second transverse mechanism 26 retreats after the second clamp 22 releases the packaging bag, so as to pass over the packaging bag by utilizing the flexibility of the packaging bag, thereby realizing the complete separation of the second clamp 22 and the packaging bag, and then the swing mechanism 21 is operated again to make the second clamp 22 swing back to the vicinity of the position of the transition clamp 18, and then the second transverse mechanism 26 drives the second clamp 22 to move forward transversely, and similarly, the clamping part on one side of the second clamp 22 will move the packaging bag to deform to pass over the packaging bag, and then the second clamp 22 clamps and receives a new packaging bag filled with materials on the transition clamp 18; compared with the second clamp 22 swinging back to the original path directly under the action of the swing mechanism 21, it can avoid the situation where the second clamp 22 interferes with the packaging bag, thereby preventing the packaging bag from falling off. It should be noted that the transverse movement mechanism 1 19 and the transverse movement mechanism 2 26 can be realized by a linear displacement module, or a chain mechanism, a belt mechanism, etc.

[0094] like Fig.16As shown, in this embodiment, the swing mechanism 21 includes a driving mechanism disposed on a base 23, and a driven gear 27 is connected to one end of the swing arm 24 hinged to the base 23, and the driving mechanism is in transmission connection with the driven gear 27 of each swing arm 24. Specifically, the driving mechanism includes a driving gear 28, and the driven gear 27 of the swing arm 24 is meshed with the driving gear 28, and in this embodiment, the two driven gears 27 do not contact each other, so that when the driving gear 28 rotates, the two swing arms 24 can achieve synchronous action. In some embodiments, transmission can also be achieved through a synchronous belt, a synchronous chain, etc. It is known that it should be satisfied that all the swing arms 24 swing in the same direction and at the same speed under the action of the driving mechanism. The swing mechanism 21 realizes the driving function with a parallelogram structure. The swing mechanism 21 needs to perform a large swing angle movement to complete the transportation of the packaging bag. During the movement of the swing mechanism 21, the four endpoints of the parallelogram structure will be collinear. At this time, the swing arm 24 is prone to instability, that is, the two swing arms 24 cannot ensure synchronous deflection in the same direction, which in turn causes the posture of the seat 25 to be unable to remain constant and change, thereby causing a movement risk in the packaging bag transportation process. Therefore, in this embodiment, the driving gear 28 simultaneously drives the two driven gears 27 to rotate. In addition to meeting the movement requirements of the swing mechanism 21, it can also achieve stability when the four endpoints of the parallelogram structure are in a collinear position, ensuring that the two swing arms 24 can always maintain synchronous deflection in the same direction, so as to ensure that the swing mechanism 21 always maintains stable movement during the movement of the packaging bag, and ensure that the packaging bag is always in a posture with the bag mouth facing up during the transportation process. It should be noted that the cover body 3 is flipped up relative to the cabin body 2 to achieve opening, and is flipped down to achieve closing. In order to adapt to the vacuum requirements of various types of materials, the packaging bag sent to the cabin body 2 is also maintained in a bag-mouth-upward posture for vacuuming and sealing processing; when the vacuum chamber is in an open state, an open area from bottom to top is formed between the cover body 3 and the cabin body 2, and the packaging bag needs to be maintained in a bag-mouth-upward posture, so that the packaging bag carrier in the cabin body 2 is also in a horizontally opened and closed state, that is, the packaging bag can only be sent from bottom to top; the secondary transfer device of this embodiment adopts a swing mechanism 21 to use a pendulum method to send the packaging bag filled with materials into the vacuum chamber. It has a simple and compact structure, smooth and fast movement, and no motion interference. The posture of the packaging bag can be well maintained during the entire pendulum transportation process, thereby ensuring the reliability of transfer and transportation, and ensuring that the packaging bag filled with materials is accurately sent to the vacuum chamber.

[0095] like Fig.18 and Fig.19As shown, in this embodiment, the transition clamp 18 includes a clamp seat 29 and a driving rod 30, and the driving rod 30 and the clamp seat 29 are slidably matched. A clamp seat 21 is provided at one end of the driving rod 30, and a power source 32 for driving its axial movement is provided at the other end of the driving rod 30, so that the clamp seat 21 31 can reciprocate relative to the clamp seat 29 to clamp or release the packaging bag; one of the clamp seat 29 and the driving rod 30 is provided with a guide groove 33 and the other is provided with a guide block 34, and the guide groove 33 and the guide block 34 are slidably matched; the guide groove 33 is a spiral structure. Before the packaging bag is loaded, the driving rod 30 moves from the first position where the transition clamp 18 is closed to the second position where the transition clamp 18 is separated, that is, when the driving rod 30 is in the second position, the clamp seat 1 29 and the clamp seat 2 31 are separated. During the movement of the clamp seat 2 31, the driving rod 30 rotates to gradually stagger the clamp seat 1 29 and the clamp seat 2 31. After the clamp seat 2 31 reaches the second position, the clamp seat 1 29 and the clamp seat 2 31 do not overlap in the axial direction of the driving rod 30, so the clamp 1 20 can transport the packaging bag along the axial direction of the driving rod 30 to the clamp seat 1 29 and the clamp seat 2 31, in other words, the packaging bag can move along the axial direction of the driving rod 30 to a position close to the clamp seat 1 29. After the packaging bag reaches this position, the driving rod 30 moves from the second position to the first position. During this period, the clamp seat 2 31 rotates and approaches the clamp seat 1 29. After the clamp seat 2 31 reaches the first position, the packaging bag is pressed against the clamp seat 1 29, so that the packaging bag is clamped between the clamp seat 1 29 and the clamp seat 2 31 to achieve the purpose of clamping the packaging bag. Of course, when there is no packaging bag, the clamp seat 2 31 located in the first position can directly contact the clamp seat 1 29. In order to clamp the packaging bag more securely, an anti-slip structure can be set on the clamp seat 1 29 and the clamp seat 2 31. The anti-slip structure can be a concave-convex plate, a rubber pad or a suction cup.

[0096] In this embodiment, the clamp seat 1 29 is provided with a guide groove 33, and the driving rod 30 is provided with a guide block 34. When the guide block 34 is located at one end of the guide groove 33, the clamp seat 2 31 is located at the first position, and when the guide block 34 is located at the other end of the guide groove 33, the clamp seat 2 31 is located at the second position. When the driving rod 30 moves in an axial straight line, the guide block 34 slides along the spiral direction of the guide groove 33, thereby driving the driving rod 30 to rotate. Further, the rotation angle range of the clamp seat 2 31 can be set by setting the angle between the two ends of the guide groove 33 along the axial direction of the driving rod 30, that is, the angle of rotation of the clamp seat 2 31 between the first position and the second position. For example, if the rotation angle range is set to 90°, the angle between one end and the other end of the guide groove 33 along the circumference of the driving rod 30 is 90°, and can also be set to 30°, 45°, 60° or other angles according to the shape of the packaging bag or other requirements. In this embodiment, the maximum rotation angle of the second clamping seat 31 relative to the first clamping seat 29 is 90°, so as to better avoid movement interference between the packaging bag and the second clamping seat 31.

[0097] To facilitate the resetting of the driving rod 30 and save energy, the transition clamp 18 also includes an elastic member, which is arranged between the driving rod 30 and the clamp seat 29. The elastic member is used to drive the driving rod 30 to move from the second position to the first position. The elastic member can be a spring 35, and the spring 35 can be sleeved on the driving rod 30. One end of the spring 35 can abut or be fixed to the clamp seat 29, and the other end can abut or be fixed to the driving rod 30. In the process of the driving rod 30 moving from the first position to the second position, the spring 35 is compressed. The driving rod 30 can move from the second position to the first position by relying on the elastic force generated by the compression of the spring 35, which can omit the process of relying on mechanical driving of the clamp seat 31 to move from the second position to the first position. Other elastic members can also be set with reference to the spring 35. In order to further improve the close fit between the clamp seat 2 31 and the clamp seat 1 29 after movement, the clamp seat 2 31 and the driving rod 30 are hinged to compensate for the gap generated when the clamp seat 2 31 and the clamp seat 1 29 are not in complete contact, so as to better clamp the packaging bag under the action of the spring 35.

[0098] In this embodiment, the transition clamp 18 is arranged in multiple numbers side by side, the clamp seat 1 29 includes a clamping portion 1 symmetrically arranged on both sides of the driving rod 30, and the clamp seat 2 31 correspondingly includes a clamping portion 2 symmetrically arranged on both sides of the driving rod 30. This structure is simple and can clamp multiple packaging bags at a time, thereby improving the transportation efficiency. In order to improve the clamping efficiency, in this embodiment, the clamp 1 20, the transition clamp 18, and the clamp 2 22 are arranged in multiple numbers side by side. Further, as Fig.17 and Fig.21As shown, the transition clamp 18 is used to clamp the side of the packaging bag, the clamp 1 20 and the clamp 2 22 are used to clamp the mouth of the packaging bag, the transition clamp 18 and the clamp 1 20 are arranged in a staggered manner, and the transition clamp 18 and the clamp 2 22 are arranged in a staggered manner. In the case of multiple stations, a single clamping component of the transition clamp 18 has two left and right clamping parts, so that each transition clamp 18 can clamp two packaging bags, while in the traditional technical solution, the packaging bag of each station needs two clamps to clamp, and a total of N*2 clamps are required in the case of multiple stations. In contrast, this embodiment only needs N+1 transition clamps 18, which not only has fewer driving points, but also effectively saves space and has the advantage of compactness, where N is the number of packaging bags. Therefore, by configuring the transition clamp 18 to clamp the side of the packaging bag, and configuring the clamp 1 20 and the clamp 2 22 to clamp the mouth of the packaging bag, it is possible to avoid interference between the clamping actions of each clamp and ensure the stability of the clamped packaging bag.

[0099] In this embodiment, a power source 32 may be provided for each transition fixture 18, or one power source 32 may drive all transition fixtures 18 to move. Specifically, a plurality of transition fixtures 18 are arranged side by side on a support member 36, and the support member 36 may be a common support structure such as a support plate, a support rod or a support frame; the power source 32 may be a rotary motor and a camshaft, the rotary motor drives the camshaft to rotate, and the cam on the camshaft pushes the end of the driving rod 30, so that the driving rod 30 moves axially, and in order to prevent the cam from wearing the driving rod 30, a push plate may be provided at the end of the driving rod 30; the power source 32 may also be a telescopic device, a supporting member and an inclined slider, the inclined slider is fixed on the supporting member, the telescopic device drives the supporting member to move radially along the driving rod 30, the inclined surface of the inclined slider contacts the end of the driving rod 30, and the inclined slider pushes the driving rod 30 to move axially during the movement of the supporting member.

[0100] Therefore, if Fig.17 As shown, when each packaging machine clamp body is equipped with an independent power source 32, the power source 32 may include a plurality of telescopic devices corresponding to the transition clamp 18, and the telescopic devices are used to drive the power source 32 to move from the first position to the second position. The telescopic devices may be air cylinders, oil cylinders or electric telescopic rods. Fig. 20As shown, when the power source 32 drives all the transition clamps 18 to move simultaneously, the power source 32 may include a telescopic device and a driving member 37, and the driving member 37 is connected to the telescopic device. The telescopic device simultaneously drives the driving rods 30 of multiple transition clamps 18 to move from the first position to the second position through the driving member 37. The driving member 37 may be a structure such as a plate or a rod extending along the arrangement direction of the transition clamps 18. The driving member 37 may contact multiple driving rods 30 at the same time under the push of the telescopic device. With this arrangement, one telescopic device can be used to drive multiple transition clamps 18 to move. It can be known that in other embodiments, when the number of telescopic devices is less than the number of transition clamps 18, the above-mentioned technical solution can be used to achieve simultaneous movement of all transition clamps 18.

[0101] like Fig. 20 As shown, in order to facilitate the adjustment of the position of the transition clamp 18 on the support member 36, a support slider 38 can be provided on the clamp seat 29, and the support member 36 is provided with a slide groove 39 extending along the extension direction of the support member 36. The support slider 38 is slidably matched with the slide groove 39. When adjusting the position of the transition clamp 18, the support slider 38 can be pushed to slide in the slide groove 39.

[0102] On the basis of the above embodiment, this embodiment further discloses a packaging bag transfer method, which realizes the transfer of packaging bags containing materials through the following steps:

[0103] S100, the packaging bag filled with the material is transported to the transition transfer device through the primary transfer device in a preset posture with the opening facing upward;

[0104] S200, the secondary transfer device grabs the packaging bag transferred by the transition transfer device, and sends the packaging bag to the clamp in the vacuum chamber along an arc path by swinging while keeping the opening facing upward in a preset posture;

[0105] S300, the fixture on the secondary transfer device moves back laterally, and then the secondary transfer device swings in the opposite direction to reset;

[0106] S400, the clamp on the secondary transfer device moves forward transversely to grab the new packaging bag received by the intermediate transfer device.

[0107] It can be seen that in this embodiment, after the packaging bag is clamped at the bag receiving position by the clamp 1 20, it is transferred to the transition clamp 18 through the transverse movement mechanism 1 19, and then the packaging bag received by the transition clamp 18 is clamped by the clamp 2 22, and the clamp 2 22 is driven to move to the bag delivery position by the swing mechanism 21, that is, the packaging bag is transferred to the vacuum chamber; then the clamp 2 22 retreats under the action of the transverse movement mechanism 2 26, so that the clamp 2 22 only drives the packaging bag to swing slightly, and then swings in the opposite direction to reset while preventing the packaging bag from falling off, and the clamp 2 22 also moves forward under the action of the transverse movement mechanism 26, so as to receive the packaging bag newly transferred by the clamp 1 20 after being reset in place.

[0108] like Fig.14 As shown, in this embodiment, during the complete heat-sealing process of the packaging bag, the front packaging device 40 transfers the packaging bag containing the material to the clamp 20 of the primary transfer device, and then the clamp 20 moves to the transition clamp 18 under the transportation of the transverse movement mechanism 19, and the packaging bag is received by the transition clamp 18. Then, the clamp 22 of the secondary transfer device receives the packaging bag, and under the drive of the swing mechanism 21, it enters the cabin 2 of the vacuum packaging equipment with an open cover 3 in a downward arc path, and is clamped by the packaging bag carrier. Since the path of the clamp 22 is a curve, during the transfer of the packaging bag, it avoids parts and avoids motion interference with the transition clamp 18; then the clamp 22 moves in the opposite direction and resets to the transition clamp 18 to wait for the next new packaging bag. It can also be known that, at the second station, the packaging bag is loaded into the chamber body 2 with the vacuum chamber cover opened, and the vacuum chamber moves with the driving disk 1. When it moves to the second station again, the vacuum chamber cover is opened, the packaging bag carrier is opened, and the packaging bag falls after heat sealing. A receiving slope 41 is set below the second station, and the packaging bag slides down the receiving slope 41 to the belt conveyor 42 on one side, so that the heat-sealed packaging bag is transported out of the packaging machine.

[0109] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum packaging device, characterized in that: It includes a drive disk with a rotating shaft driven by a power mechanism and arranged along a horizontal direction, and a plurality of vacuum chambers are arranged on the drive disk along its rotation circumference, and a packaging bag carrier and a heat sealing mechanism are arranged in the vacuum chamber, and the vacuum chamber includes a chamber body rotatably connected to the drive disk and a cover body hinged on the chamber body; A posture maintaining mechanism is provided between the driving disk and the cabin body to maintain the cabin body in a preset posture during the rotation of the driving disk; Alternatively, the cabin body maintains a preset posture by its own weight during the rotation of the driving disc; It also includes a vacuum pumping mechanism, which cooperates with the vacuum chamber to draw a vacuum.

2. A vacuum packaging device as claimed in claim 1, characterized in that: The vacuum pumping mechanism comprises: A stationary air distribution plate and an air guide plate connected to the driving plate; Among them, the air distribution disk and the air guide disk are rotatably matched, and the pre-vacuum position, vacuum pumping section and vacuum breaking position are arranged in sequence on the matching surface of the air distribution disk along the rotation circumference. The air guide disk is provided with an air duct, one end of which is connected to the vacuum chamber, and the other end of the air duct slides along the matching surface of the air distribution disk to periodically connect with the pre-vacuum position, vacuum pumping section and vacuum breaking position.

3. A vacuum packaging device as claimed in claim 1, characterized in that: The holding mechanism is a gear linkage mechanism or a cam linkage mechanism.

4. A vacuum packaging device as claimed in claim 3, characterized in that: When the holding mechanism is a gear linkage mechanism, the gear linkage mechanism comprises: A gear 1 is disposed at the center of the driving disk, wherein the gear 1 is arranged stationarily; and Gear 2 connected to the cabin, wherein gear 2 is drivingly connected to gear 1; The rotation of the driving disk relative to the gear one and the rotation of the gear two relative to the driving disk have the same speed and opposite directions; When the holding mechanism is a cam linkage mechanism, the cam linkage mechanism comprises: A stationary fixed disk, the fixed disk being located on one side of the driving disk, the fixed disk being provided with at least two annular grooves; and A retaining plate, the retaining plate is connected to the cabin body and is provided with a guide portion that is slidably matched with the annular groove; Wherein, the distance from the rotation axis of the cabin body on the driving disk to the rotation axis of the driving disk is consistent with the radius of the annular groove.

5. A vacuum packaging device as claimed in claim 4, characterized in that: The parameters of gear one are consistent with the parameters of gear two.

6. A vacuum packaging device as claimed in claim 1, characterized in that: The driving disc is also provided with a limit driving part; the cover body is provided with a linkage part for cooperating with the limit driving part, and during the rotation of the driving disc, the limit driving part and the linkage part switch between the limit state and the separation state; When the limit drive part and the linkage part are in a limit state, the linkage part contacts the limit drive part, and the cover body is limited and blocked and moves with the driving disk to open the cover; when the limit drive part and the linkage part are in a separation state, the linkage part is separated from the limit drive part, and the cover body rotates synchronously with the cabin body to keep the cover closed.

7. A vacuum packaging device as claimed in claim 6, characterized in that: The cover body is connected to the cabin body via a multi-point hinge structure, wherein the multi-point hinge structure comprises a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hinged between the cabin body and the cover body.

8. A packaging machine, characterized in that: It comprises a front packaging device, a transfer device, and a vacuum packaging device as claimed in any one of claims 1 to 7; The front packaging device is used to fill the material into the packaging bag, and the transfer device transfers the packaging bag filled with the material to the vacuum chamber of the vacuum packaging device in the open state.

9. A packaging machine as claimed in claim 8, characterized in that: The transfer device comprises a primary transfer device, a transition fixture and a secondary transfer device; The primary transfer device includes a transverse movement mechanism 1 and a clamp 1, and the secondary transfer device includes a swing mechanism and a clamp 2; The transverse movement mechanism 1 is arranged between the delivery position of the front packaging device and the transition clamp, so as to transversely move the packaging bag filled with materials at the bag receiving position to the transition clamp toward the delivery position of the front packaging device through the clamp 1; The swing mechanism is arranged between the transition clamp and the feeding position of the vacuum packaging device, and the swing mechanism drives the second clamp to maintain a preset posture and perform a swinging motion, so as to transport the packaging bag filled with materials from the transition clamp to the bag delivery position with the bag opening facing upward.

10. A packaging machine as claimed in claim 9, characterized in that: The swing mechanism comprises: A base, a swing arm and a seat body, one end of the swing arm is hinged to the base body, and the other end is hinged to the seat body, at least two swing arms are provided to form a parallelogram mechanism with the base body and the seat body, and the second clamp is arranged on the seat body.

11. A packaging machine as claimed in claim 10, characterized in that: The second clamp is connected to the seat body through a second transverse movement mechanism.

12. A packaging machine as claimed in claim 9, characterized in that: The transition clamp comprises a clamp seat 1 and a driving rod, wherein the driving rod and the clamp seat 1 are slidably matched, one end of the driving rod is provided with a clamp seat 2, and the other end of the driving rod is provided with a power source for driving the axial movement thereof, so that the clamp seat 2 reciprocates relative to the clamp seat 1 to clamp the packaging bag or release the packaging bag; One of the clamping seat 1 and the driving rod is provided with a guide groove and the other is provided with a guide block, and the guide groove and the guide block are slidably matched; The guide groove is a spiral structure.

13. A packaging machine as claimed in claim 10, characterized in that: The first clamp, the transition clamp, and the second clamp are respectively arranged in plurality in parallel.

14. A packaging machine as claimed in claim 10, characterized in that: The transition clamp is used to clamp the side of the packaging bag, the clamp one and the clamp two are used to clamp the mouth of the packaging bag, the transition clamp and the clamp one are staggered, and the transition clamp and the clamp two are staggered.

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