Vacuum sealing device suitable for vertical bagging machine and vertical vacuum bagging machine

Abstract

The utility model discloses a vacuum sealing device suitable for a vertical bagging machine and the vertical bagging machine, and relates to the technical field of packaging machinery. According to the vertical bagging machine, the vacuumizing mechanism is additionally arranged on an existing vertical bagging machine, the bag clamping and conveying mechanism is structurally improved, the sealing mechanism and the bag clamping and conveying mechanism are integrated together to form the bag clamping and sealing mechanism of a new structure, the vacuumizing mechanism vacuumizes packaging bags, the bag clamping and sealing mechanism is matched with the vacuumizing mechanism, and the bag clamping and sealing mechanism is matched with the vacuumizing mechanism. The bag opening of the packaging bag is clamped when the vacuumizing mechanism conducts vacuumizing, heat sealing is conducted immediately after the vacuumizing mechanism conducts vacuumizing, the number of times of transferring of the packaging bag is reduced, the sealing efficiency is improved, meanwhile, the bag clamping and sealing mechanism is matched with the vacuumizing mechanism, vacuum sealing of the packaging bag is achieved, and air leakage of the packaging bag is avoided; and the air tightness of vacuum packaging is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and more specifically to a vacuum sealing device and a vertical vacuum bagging machine suitable for vertical bagging machines. Background Technology

[0002] Many everyday items need to be packaged in bags for preservation. Horizontal bagging machines or round bag feeders are commonly used for this purpose. Horizontal bagging machines are generally suitable for packaging standard-sized materials, while round bag feeders are better suited for bulk or irregularly shaped materials. However, round bag feeders have a more complex structure and higher equipment costs, making them unsuitable for packaging small-sized materials (single packages with low weight). Vertical bagging machines also exist, but they cannot achieve vacuum sealing.

[0003] For example, the utility model patent entitled "Vertical Bag-Type Bag-Placing Machine" with an authorization announcement date of June 9, 2023, authorization announcement number CN219154893U, describes a process where, after material is filled into a bag, a lifting mechanism receives the bag containing the material, then a corner-inserting device tidies up the bag opening, and finally, a bag-clamping and conveying mechanism holds the tidyed bag opening and transfers it to a sealing mechanism for sealing. However, this vertical bag-placing machine cannot vacuum-seal the bags, and the bags are transferred multiple times, resulting in low sealing efficiency. If a vacuum-sealing mechanism were added, the vertical bag-placing machine would cause vacuum leakage during bag transfer, hindering vacuum sealing. Utility Model Content

[0004] To overcome the defects and shortcomings of the existing technology, this utility model provides a vacuum sealing device and a vertical bagging machine suitable for vertical bagging machines. The purpose of this invention is to solve the problem that existing vertical bagging machines cannot achieve vacuum sealing, and that the numerous transfers of packaging bags in existing vertical bagging machines easily lead to vacuum leakage. This utility model adds a vacuuming mechanism to the existing vertical bagging machine and improves the structure of the bag clamping and feeding mechanism. The sealing mechanism and the bag clamping and feeding mechanism are integrated to form a new bag clamping and sealing mechanism. The vacuuming mechanism performs a vacuuming operation on the packaging bag. The bag clamping and sealing mechanism works in conjunction with the vacuuming mechanism, clamping the bag opening during vacuuming and immediately performing heat sealing after the vacuuming mechanism removes the bag. This reduces the number of bag transfers, improves sealing efficiency, and simultaneously achieves vacuum sealing of the packaging bag, preventing air leakage and improving the airtightness of the vacuum packaging.

[0005] To address the problems existing in the prior art, the present invention is achieved through the following technical solution.

[0006] The first aspect of this utility model provides a vacuum sealing device suitable for a vertical bagging machine. The vacuum sealing device includes a bag mouth straightening mechanism and a bag receiving mechanism. The bag receiving mechanism is configured to rise to the bottom of the packaging bag covered by the lowest bag support of the vertical bagging machine, and after the material is filled, catch the packaging bag containing the material and lower it to a set height. The bag mouth straightening mechanism is configured to straighten the bag mouth of the packaging bag on the bag receiving mechanism that has fallen to the set height. It also includes a vacuuming mechanism and a bag clamping and sealing mechanism. The vacuuming mechanism includes a vacuum tube, a first vacuum drive component that drives the vacuum tube to extend towards the bag mouth of the packaging bag, and a second vacuum drive component that drives the vacuum tube to insert into the bag mouth of the packaging bag.

[0007] The bag clamping and sealing mechanism includes a bag clamping opening assembly and a translation drive assembly. The translation drive assembly drives the bag clamping opening assembly to reciprocate. The bag clamping opening assembly includes a first bag clamping plate, a second bag clamping plate, and a bag clamping opening drive assembly. The bag clamping opening drive assembly drives the first bag clamping plate and the second bag clamping plate to close and clamp the bag opening of the packaging bag. A first sealing assembly is provided on the first bag clamping plate, and a second sealing assembly is provided on the second bag clamping plate. The first sealing assembly and the second sealing assembly cooperate to heat seal the bag opening of the vacuum-sealed packaging bag.

[0008] The working principle of this utility model is as follows:

[0009] After the bag support at the lowest position of the vertical bagging machine completes material loading, the bag receiving mechanism rises to the bottom of the packaging bag supported by the bag support. After loading, the packaging bag falls onto the bag receiving mechanism, which then lowers the bag to a set height to facilitate the bag opening sorting mechanism. The bag opening sorting mechanism sorts the bag opening; if it is an "M" shaped bag opening, it performs M-shaped bag opening forming; if it is an "I" shaped bag opening, it performs "I" shaped bag opening forming (the structures of the M-shaped and I-shaped bag opening sorting mechanisms are different and can be assembled according to actual needs). While the bag opening sorting mechanism is sorting the bag opening, a... The vacuum tube of the vacuum mechanism is inserted into the packaging bag; the first vacuum drive component drives the vacuum tube to extend above the bag opening, and the second vacuum drive component drives the vacuum tube to insert into the packaging bag; after the bag opening sorting mechanism completes the sorting of the packaging bag, the bag opening clamping drive component drives the first and second clamping plates to close, clamping the bag opening. At this time, the vacuum tube begins to extract the air from the packaging bag. After the vacuuming operation is completed, the second vacuum drive component drives the vacuum tube to withdraw from the packaging bag. The first and second sealing components on the first and second clamping plates act simultaneously to heat seal the bag opening.

[0010] More preferably, the ends of the first and second clamping plates used to clamp the opening of the packaging bag are equipped with clamping strips.

[0011] More preferably, the bag clip is made of rubber.

[0012] More preferably, the bag clamping assembly further includes a bag clamping mounting frame, and the translation drive assembly drives the bag clamping mounting frame to reciprocate; the first bag clamping plate is slidably mounted on the bag clamping mounting frame via a first bag clamping connecting plate, and the second bag clamping plate is slidably mounted on the bag clamping mounting frame via a second bag clamping connecting plate; the bag clamping opening drive assembly drives the first bag clamping connecting plate and the second bag clamping connecting plate to reciprocate relative to each other, thereby realizing the clamping and release of the bag opening by the first bag clamping plate and the second bag clamping plate.

[0013] More preferably, the translation drive assembly includes a translation slide rail that slides with the bag clamping mounting bracket and a translation servo motor assembly mounted on the bag clamping mounting bracket; the translation slide rail is mounted on the frame, a translation gear is mounted on the output shaft of the translation servo motor assembly, and a rack that meshes with the translation gear is fixed on the frame on which the translation slide rail is mounted, the rack being parallel to the translation slide rail.

[0014] More preferably, the first sealing assembly includes a first heat-sealing cylinder and a first heat-sealing block, and the second sealing assembly includes a second heat-sealing cylinder and a second heat-sealing block, wherein the first heat-sealing block and the second heat-sealing block are disposed opposite to each other and are parallel to the first bag clamping plate and the second bag clamping plate.

[0015] More preferably, the bag receiving mechanism includes a bag receiving mounting base, a bag receiving servo drive assembly, a bag receiving transmission assembly, a sliding mounting base, and a lifting plate. The sliding mounting base is slidably mounted on the bag receiving mounting base, the lifting plate is mounted on the sliding mounting base, and the bag receiving servo drive assembly drives the sliding mounting base to move up and down reciprocally through the bag receiving transmission assembly.

[0016] More preferably, the lifting plate is equipped with a pair of telescopic cylinders, which are arranged opposite to each other. Each telescopic cylinder has a suction cup assembly installed at its extended end. The suction cup assemblies of the pair of telescopic cylinders are arranged opposite to each other to adsorb the sides of the packaging bag.

[0017] More preferably, the lifting plate is equipped with a pair of packaging bag baffles, and a bag receiving cavity for receiving the packaging bag is formed between the pair of packaging bag baffles.

[0018] The second aspect of this utility model provides a vertical vacuum bagging machine, including a feeding hopper, a bag storage device, a bag taking device, a bag bagging device, a turntable bag supporting device, and the vacuum sealing device described in the first aspect.

[0019] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0020] 1. This utility model adds a vacuuming mechanism and improves the structure of the existing vertical bagging machine's bag clamping and feeding mechanism to form a new bag clamping and sealing mechanism. The vacuuming mechanism performs a vacuuming operation on the packaging bag. The bag clamping and sealing mechanism works in conjunction with the vacuuming mechanism to clamp the bag opening while the vacuuming mechanism is performing vacuuming, and immediately performs heat sealing after the vacuuming mechanism is removed. This reduces the number of times the packaging bag is transferred and improves sealing efficiency. At the same time, the bag clamping and sealing mechanism works in conjunction with the vacuuming mechanism to achieve vacuum sealing of the packaging bag, preventing air leakage and improving the airtightness of vacuum packaging.

[0021] 2. This utility model assembles a heat-sealing block onto a bag-clamping plate via a heat-sealing cylinder. Heat sealing can be performed immediately during bag clamping, avoiding the need for the packaging bag to be transferred to the heat-sealing mechanism. This integrates the heat-sealing process with the bag clamping and translation process, improving the sealing output efficiency of the packaging bags. Simultaneously, sealing the packaging bag can be performed immediately during clamping, reducing the risk of bag opening repositioning (after bag opening adjustment). When used in conjunction with a vacuum mechanism, it also reduces the risk of vacuum leakage.

[0022] 3. This utility model changes the existing interlocking bag clamping motion to a translational motion, which makes the clamping force applied to the bag opening by the clamping plate more uniform and avoids the problem of excessive local clamping force. At the same time, the sealing method of the heat sealing block is also changed from interlocking to translational sealing, which also makes the sealing more uniform and helps to improve the sealing performance of the bag opening.

[0023] 4. This utility model restructures the existing bag receiving mechanism by adding a telescopic cylinder and a suction cup assembly to the lifting plate. In the initial state, the telescopic cylinder is in a retracted state. After the lifting plate rises to the bottom of the packaging bag, the telescopic cylinder extends, causing the suction cup on the suction cup assembly to contact the body of the packaging bag and adhere to it. When the lifting plate descends, the suction cup adheres to the packaging bag and removes it from the bag holder, effectively solving the problem that the packaging bag cannot be smoothly removed from the bag holder. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the vacuum sealing device of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of the bag receiving mechanism of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the vacuum mechanism of this utility model;

[0027] Figure 4This is a three-dimensional structural diagram of the bag-clamping and sealing mechanism of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the vertical vacuum bagging machine of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of the bag opening sorting mechanism of this utility model;

[0030] Reference numerals: 100, feeding hopper; 200, bag storage device; 300, bag taking device; 400, bag putting device; 500, turntable bag supporting device; 501, bag supporting device; 600, vacuum sealing device; 61, bag mouth sorting mechanism.

[0031] 62. Bag receiving mechanism; 6201. Bag receiving mounting base; 6202. Bag receiving servo drive assembly; 6203. Sliding mounting base; 6204. Lifting plate; 6205. Telescopic cylinder; 6206. Suction cup; 6207. Suction cup assembly; 6208. Suction cup mounting plate; 6209. Packaging bag baffle; 6210. Bag receiving cavity;

[0032] 63. Vacuum pumping mechanism; 6301. Vacuum pumping tube; 6302. First vacuum drive assembly; 6303. Second vacuum drive assembly;

[0033] 64. Bag clamping and sealing mechanism; 6401. Bag clamping mouth assembly; 6402. Translation drive assembly; 6403. Bag clamping mounting frame; 6404. First bag clamping plate; 6405. Second bag clamping plate; 6406. First bag clamping connecting plate; 6407. Second bag clamping connecting plate; 6408. First heat sealing cylinder; 6409. Second heat sealing cylinder; 6410. First heat sealing block; 6411. Second heat sealing block; 6412. Bag clamping strip; 6413. Upper slide rail; 6414. Lower slide rail; 6415. First slider; 6416. Second slider; 6417. Bag clamping servo motor assembly; 6418. Bag clamping rotating arm; 6419. First connecting rod; 6420. Second connecting rod; 6421. Translation slide rail; 6422. Translation servo motor assembly. Detailed Implementation

[0034] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] Example 1

[0036] As a preferred embodiment of this example, please refer to the appendix to the specification. Figure 1 As shown, this embodiment discloses a vacuum sealing device 600 suitable for a vertical bagging machine. The vacuum sealing device 600 includes a bag mouth straightening mechanism 61 and a bag receiving mechanism 62. The bag receiving mechanism 62 is configured to rise to the bottom of the packaging bag fitted by the lowest position bag support 501 of the vertical bagging machine, and after the material is filled, catch the packaging bag containing the material and lower it to a set height. The bag mouth straightening mechanism 61 is configured to straighten the bag mouth of the packaging bag on the bag receiving mechanism 62 that has fallen to the set height.

[0037] Unlike existing vertical bagging machines, this machine is designed according to the instructions attached. Figure 1 Appendix Figure 3 and attached Figure 4 As shown, the vacuum sealing device 600 of this embodiment also includes a vacuuming mechanism 63 and a bag clamping and sealing mechanism 64.

[0038] Refer to the instruction manual appendix Figure 3 As shown, the vacuuming mechanism 63 includes a vacuum tube 6301, a first vacuum drive component 6302 that drives the vacuum tube 6301 to extend towards the opening of the packaging bag, and a second vacuum drive component 6303 that drives the vacuum tube 6301 to insert into the opening of the packaging bag.

[0039] As an example of this embodiment, the first vacuum drive component 6302 can be a cylinder or a linear motor; the second vacuum drive component 6303 can be a cylinder or a servo motor assembly + crank-connecting rod structure (as shown in the attached diagram). Figure 1 and attached Figure 3 (As shown).

[0040] Refer to the instruction manual appendix Figure 4 As shown, the bag clamping and sealing mechanism 64 includes a bag clamping mouth assembly 6401 and a translation drive assembly 6402. The translation drive assembly 6402 drives the bag clamping mouth assembly 6401 to reciprocate. The bag clamping mouth assembly 6401 includes a first bag clamping plate 6404, a second bag clamping plate 6405, and a bag clamping mouth drive assembly. The bag clamping mouth drive assembly drives the first bag clamping plate 6404 and the second bag clamping plate 6405 to close and clamp the bag opening of the packaging bag. A first sealing assembly is provided on the first bag clamping plate, and a second sealing assembly is provided on the second bag clamping plate 6405. The first sealing assembly and the second sealing assembly cooperate to heat seal the bag opening of the vacuum-sealed packaging bag.

[0041] In this embodiment, the working principle of the vacuum sealing device 600 is as follows:

[0042] After the bag support 501 at the lowest position of the vertical bagging machine completes the material filling, the bag receiving mechanism 62 rises to the bottom of the packaging bag fitted by the bag support 501. After the material filling is completed, the packaging bag falls onto the bag receiving mechanism, which then lowers the packaging bag to a set height so that the bag opening straightening mechanism 61 can straighten the bag opening. The bag opening straightening mechanism 61 straightens the bag opening. If it is an "M" shaped bag opening, it performs M-shaped bag opening forming; if it is an "I" shaped bag opening, it performs "I" shaped bag opening forming (the structures of the M-shaped and I-shaped bag opening straightening mechanisms 61 are different and can be assembled according to actual needs). While the bag opening straightening mechanism 61 is straightening the bag opening, the vacuum tube 6301 of the vacuuming mechanism 63 is inserted into... Inside the packaging bag; the first vacuum drive component 6302 drives the vacuum tube 6301 to extend above the bag opening, and the second vacuum drive component 6303 drives the vacuum tube 6301 to insert into the packaging bag; after the bag opening sorting mechanism 61 completes the sorting of the packaging bag, the bag opening clamping drive component drives the first clamping plate 6404 and the second clamping plate 6405 to close, clamping the bag opening. At this time, the vacuum tube 6301 begins to extract the air from the packaging bag. After the vacuuming operation is completed, the second vacuum drive component 6303 drives the vacuum tube 6301 to pull away from the packaging bag. The first sealing component and the second sealing component on the first clamping plate 6404 and the second clamping plate 6405 act simultaneously to heat seal the bag opening.

[0043] As an example of this embodiment, the bag opening sorting mechanism 61 can adopt an existing corner-insertion mechanism (such as...). Figure 6 As shown, this is applicable to M-type bag openings, but existing pull-bag mechanisms (applicable to "I"-type bag openings) can also be used. Optional features can be selected based on packaging requirements.

[0044] Example 2

[0045] As another preferred embodiment of the present invention, this embodiment is a further detailed supplement and explanation of the technical solution of the present invention based on the above embodiment 1.

[0046] In this embodiment, refer to the appendix to the specification. Figure 1 and attached Figure 4As shown, the bag clamping assembly 6401 further includes a bag clamping mounting frame 6403, and the translation drive assembly 6402 drives the bag clamping mounting frame 6403 to reciprocate. The first bag clamping plate 6404 is slidably mounted on the bag clamping mounting frame 6403 via the first bag clamping connecting plate 6406, and the second bag clamping plate 6405 is slidably mounted on the bag clamping mounting frame 6403 via the second bag clamping connecting plate 6407. The bag clamping opening drive assembly drives the first bag clamping connecting plate 6406 and the second bag clamping connecting plate 6407 to reciprocate relative to each other, thereby realizing the clamping and release of the bag opening by the first bag clamping plate 6404 and the second bag clamping plate 6405.

[0047] The first sealing assembly includes a first heat-sealing cylinder 6408 and a first heat-sealing block 6410, and the second sealing assembly includes a second heat-sealing cylinder 6409 and a second heat-sealing block 6411. The first heat-sealing block 6410 and the second heat-sealing block 6411 are arranged opposite to each other and are parallel to the first bag clamping plate 6404 and the second bag clamping plate 6405.

[0048] After the packaging bag is vacuumed, the bag clamping drive assembly drives the first bag clamping connecting plate 6406 and the second bag clamping connecting plate 6407 to move closer together, causing the first bag clamping plate 6404 and the second bag clamping plate 6405 to clamp the bag opening. Then, the first heat sealing cylinder 6408 and the second heat sealing cylinder 6409 extend simultaneously, and the first heat sealing block 6410 and the second heat sealing block 6411 clamp the bag opening and perform heat sealing. The improved structure allows for immediate heat sealing after the bag opening is clamped, improving sealing efficiency, reducing the risk of vacuum leakage, and using a translational sealing method for more uniform sealing and improved sealing effect.

[0049] In one embodiment of this invention, to facilitate the vacuuming operation of the packaging bag by the vacuum tube 6301, the first clamping plate 6404 and the second clamping plate 6405 are equipped with clamping strips 6412 at the ends of the packaging bag openings. The clamping strips 6412 are made of a soft material with good sealing properties, so that they can cooperate with the vacuum tube 6301 of the vacuuming mechanism 63 to clamp the packaging bag. The soft material of the clamping strips 6412 allows for some space to be provided for the vacuum tube 6301, facilitating the vacuuming operation after the clamping plates clamp the bag opening. Preferably, the clamping strips 6412 are made of rubber.

[0050] As another embodiment of this invention, please refer to the appendix to the specification. Figure 4As shown, this embodiment changes the existing interlocking motion of the bag clamping plate to a reciprocating translational motion. To ensure the stability of the bag clamping plate's movement and to better transmit the driving force of the bag clamping drive assembly to the bag clamping plate, this embodiment provides two parallel slide rails on the bag clamping mounting bracket 6403. The first bag clamping connecting plate 6406 and the second bag clamping connecting plate 6407 are each equipped with a first slider 6415 and a second slider 6416. The first slider 6415 slides in engagement with the upper slide rail 6413, and the second slider 6416 slides in engagement with the lower slide rail 6414. This increases the operational stability of the first bag clamping connecting plate 6406 and the second bag clamping connecting plate 6407. Simultaneously, the connection point of the bag clamping drive assembly can be located between the first slider 6415 and the second slider 6416 to facilitate smoother force transmission.

[0051] As an example of this embodiment, please refer to the appendix to the specification. Figure 4 As shown, the bag clamping drive assembly includes a bag clamping servo motor assembly 6417, a bag clamping rotating arm 6418, a first connecting rod 6419, and a second connecting rod 6420. The bag clamping servo motor assembly 6417 is mounted on the bag clamping mounting bracket 6403. The bag clamping rotating arm 6418 is mounted on the output shaft of the bag clamping servo motor assembly 6417. One end of the bag clamping rotating arm 6418 is hinged to one end of the first connecting rod 6419, and the other end of the first connecting rod 6419 is hinged to the first bag clamping connecting plate 6406. The other end of the bag clamping rotating arm 6418 is connected to one end of the second connecting rod 6420, and the other end of the second connecting rod 6420 is hinged to the second bag clamping connecting plate 6407.

[0052] Furthermore, the hinge points where the first connecting rod 6419 is hinged to the first bag-clamping connecting plate 6406 and the second connecting rod 6420 is hinged to the second bag-clamping connecting plate 6407 are located on the plate between the first slider 6415 and the second slider 6416. This facilitates smoother force transmission.

[0053] Instruction manual attached Figure 4 The diagram only shows one embodiment of the bag clamping drive assembly. The bag clamping drive assembly can also adopt a structure of synchronous belt pulley assembly + bag clamping servo motor assembly 6417, wherein the first bag clamping connecting plate 6406 can be fixed on one side of the annular synchronous belt, and the second bag clamping connecting plate 6407 is fixed on the other side of the annular synchronous belt. When the bag clamping servo motor assembly 6417 drives the annular synchronous belt to rotate, the first bag clamping connecting plate 6406 and the second bag clamping connecting plate 6407 move relative to each other (closer or farther apart).

[0054] As another example of this embodiment, the bag clamping drive assembly can also be implemented using a structure of bag clamping servo motor assembly 6417 + bidirectional threaded screw.

[0055] As another embodiment of this invention, please refer to the appendix to the specification. Figure 1 and attached Figure 4 As shown, the translation drive assembly 6402 includes a translation slide rail 6421 that slides with the bag clamping mounting bracket 6403 and a translation servo motor assembly 6422 mounted on the bag clamping mounting bracket 6403; the translation slide rail 6421 is mounted on the frame, and a translation gear (not shown in the figure) is mounted on the output shaft of the translation servo motor assembly 6422. A rack that meshes with the translation gear is fixed on the frame on which the translation slide rail 6421 is mounted, and the rack is parallel to the translation slide rail 6421.

[0056] As an example of this embodiment, the structure of the translation drive assembly 6402 can also be a translation servo motor assembly 6422 + synchronous pulley assembly, or a translation servo motor assembly 6422 + single threaded screw.

[0057] Furthermore, two parallel sliding rails 6421 are provided, and the bag clamping mounting bracket 6403 is slidably assembled on the two sliding rails 6421 to ensure the stable operation of the bag clamping mounting bracket 6403.

[0058] Both the bag clamping servo motor assembly 6417 and the translation servo motor assembly 6422 mentioned above are combinations of servo motors and reducers.

[0059] Example 3

[0060] As another preferred embodiment of this utility model, this embodiment is a further detailed supplement and explanation of the technical solution of this utility model based on the above-described embodiment 1 or embodiment 2. In this embodiment, refer to the appendix to the specification. Figure 2 As shown, the bag receiving mechanism 62 includes a bag receiving mounting base 6201, a bag receiving servo drive assembly 6202, a bag receiving transmission assembly, a sliding mounting base 6203, and a lifting plate 6204. The sliding mounting base 6203 is slidably mounted on the bag receiving mounting base 6201, and the lifting plate 6204 is mounted on the sliding mounting base 6203. The bag receiving servo drive assembly 6202 drives the sliding mounting base 6203 to move up and down reciprocally through the bag receiving transmission assembly.

[0061] As a preferred embodiment, when packaging small-sized materials (with small bag weight), it is difficult to use the weight of the material to knock the packaging bag off the bag holder 501. Therefore, the bag docking mechanism 62 has been structurally improved. Specifically, a pair of telescopic cylinders 6205 are mounted on the lifting plate 6204. The pair of telescopic cylinders 6205 are arranged opposite to each other, and each telescopic cylinder 6205 has a suction cup assembly 6207 installed at its extended end. The suction cup assemblies 6207 of the pair of telescopic cylinders 6205 are arranged opposite to each other to adsorb the sides of the packaging bag.

[0062] A telescopic cylinder 6205 and a suction cup assembly 6207 are added to the lifting plate 6204. In the initial state, the telescopic cylinder 6205 is in a retracted state. After the lifting plate 6204 rises to the bottom of the packaging bag, the telescopic cylinder 6205 extends, so that the suction cup 6206 on the suction cup assembly 6207 contacts the body of the packaging bag and adheres to the body of the packaging bag. When the lifting plate 6204 descends, the suction cup 6206 adheres to the packaging bag and removes the packaging bag from the bag stretcher 501, effectively solving the problem that the packaging bag cannot be smoothly removed from the bag stretcher 501.

[0063] As one implementation method of this embodiment, please refer to the appendix to the specification. Figure 2 As shown, the suction cup assembly 6207 includes a suction cup 6206 and a suction cup mounting plate 6208. The suction cup 6206 is mounted on the suction cup mounting plate 6208, and the suction cup mounting plate 6208 is mounted on the extended end of the telescopic cylinder 6205. The suction cup mounting plate 6208 facilitates the fixed assembly of the suction cup 6206 and compensates for insufficient space.

[0064] As another embodiment of this invention, please refer to the appendix to the specification. Figure 2 As shown, the lifting plate 6204 is equipped with a pair of packaging bag baffles 6209, and a receiving cavity 6210 for receiving the packaging bag is formed between the pair of packaging bag baffles 6209. The design of the receiving cavity 6210 prevents the packaging bag from changing its posture after receiving it, thus ensuring the stability of the packaging bag.

[0065] As an example, the suction cup assembly 6207 is located on both sides of the bag receiving cavity 6210. The suction cup assembly 6207, located on both sides of the bag receiving cavity 6210, provides a large contact area, allowing the suction cup 6206 to stably adhere to the body of the packaging bag.

[0066] As an example of this embodiment, please refer to the appendix to the specification. Figure 1 As shown, the bag receiving transmission assembly includes a driving wheel, a driven wheel, and a synchronous belt. The synchronous belt is annularly sleeved on the driving wheel and the driven wheel. The driving wheel is connected to the output shaft of the bag receiving servo drive assembly 6202. The sliding mounting base 6203 is fixed relative to the synchronous belt.

[0067] As another example of this embodiment, the bag receiving transmission assembly (not shown in the figure, but refer to the structure of the transmission assembly of the lifting mechanism in CN219154893U) includes a crank and a connecting rod. One end of the crank is mounted on the output shaft of the servo drive assembly, and the other end of the crank is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the sliding mounting base 6203.

[0068] Example 4

[0069] As another preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 5 As shown, this embodiment discloses a vertical vacuum bagging machine, including a feeding hopper 100, a bag storage device 200, a bag taking device 300, a bag putting device 400, a turntable bag supporting device 500, and a vacuum sealing device 600 as described in Embodiments 1, 2, or 3 above.

[0070] The bag storage device 200 is used to store packaging bags. The bag retrieval device 300 is located at the bottom of the bag storage device 200 and retrieves the packaging bags one by one from the bottom of the bag storage device 200. The bag-fitting device 400 is used to pick up the packaging bags retrieved by the bag retrieval device 300 and open the bag opening. The opened packaging bag is then fitted onto the highest position of the turntable bag-supporting device 500, the bag support 501. After the bag is fitted onto the highest position of the turntable bag-supporting device 500, it rotates to the lowest position. At this time, the discharge hopper 100 is located above the lowest position bag support 501 and corresponds to the bag opening of the packaging bag opened by the lowest position bag support 501. The material falls into the bag opening of the packaging bag through the discharge hopper 100, completing the material filling. After the material filling is completed, the bag receiving mechanism 62 rises to the bottom of the packaging bag fitted by the bag support 501. After the material filling is completed, the packaging bag falls onto the bag receiving mechanism, which then lowers the packaging bag to a set height so that the bag opening straightening mechanism 61 can straighten the bag opening. The bag opening straightening mechanism 61 straightens the bag opening. If it is an "M" shaped bag opening, it performs M-shaped bag opening shaping; if it is an "I" shaped bag opening, it performs "I" shaped bag opening shaping (the structures of the M-shaped and I-shaped bag opening straightening mechanisms 61 are different and can be assembled according to actual needs). While the bag opening straightening mechanism 61 is straightening the bag opening, the vacuum tube 6301 of the vacuuming mechanism 63 is inserted into the packaging bag. A vacuum drive assembly 6302 drives a vacuum tube 6301 to extend above the opening of the packaging bag, while a second vacuum drive assembly 6303 drives the vacuum tube 6301 to insert into the packaging bag. After the bag opening sorting mechanism 61 completes the sorting of the packaging bag, the bag opening clamping drive assembly drives the first clamping plate 6404 and the second clamping plate 6405 to close, clamping the opening of the packaging bag. At this time, the vacuum tube 6301 begins to extract air from the packaging bag. After the vacuuming operation is completed, the second vacuum drive assembly 6303 drives the vacuum tube 6301 to remove it from the packaging bag. The first sealing assembly and the second sealing assembly on the first clamping plate 6404 and the second clamping plate 6405 operate simultaneously to heat-seal the opening of the packaging bag.

Claims

1. A vacuum sealing device suitable for a vertical bagging machine, the vacuum sealing device (600) comprising a bag mouth arranging mechanism (61) and a bag receiving mechanism (62), the bag receiving mechanism (62) is configured to ascend to the bottom of a packaging bag set by the lowest bag holder (501) of the vertical bagging machine, and after the material is filled, the bag receiving mechanism (62) receives the packaging bag containing the material and descends to a set height; the bag mouth arranging mechanism (61) is configured to arrange the bag mouth of the packaging bag on the bag receiving mechanism (62) descending to the set height; characterized in that: Further comprising a vacuumizing mechanism (63) and a bag clamping and sealing mechanism (64), the vacuumizing mechanism (63) comprising a vacuumizing pipe (6301), a first vacuum driving assembly (6302) driving the vacuumizing pipe (6301) to stretch out of the bag opening, and a second vacuum driving assembly (6303) driving the vacuumizing pipe (6301) to insert into the bag opening; The bag clamping and sealing mechanism (64) comprises a bag clamping assembly (6401) and a translation driving assembly (6402) driving the bag clamping assembly (6401) to reciprocate translationally; the bag clamping assembly (6401) comprises a first bag clamping plate (6404), a second bag clamping plate (6405), and a bag clamping and sealing driving assembly driving the first bag clamping plate (6404) and the second bag clamping plate (6405) to close to clamp the bag opening, the first bag clamping plate (6404) is provided with a first sealing assembly, and the second bag clamping plate (6405) is provided with a second sealing assembly, the first sealing assembly and the second sealing assembly cooperate to heat seal and seal the bag opening after vacuumizing.

2. A vacuum sealer for a vertical bagger as defined in claim 1, wherein: The first bag clamping plate (6404) and the second bag clamping plate (6405) are provided with a bag clamping strip (6412) for clamping the end of the bag opening.

3. A vacuum sealer for a vertical bagger as defined in claim 2, wherein: The bag clamping strip (6412) is made of rubber.

4. Vacuum sealing device suitable for a vertical bagging machine according to any one of claims 1-3, characterized in that: The bag clamping assembly (6401) further comprises a bag clamping mounting frame (6403), the translation driving assembly (6402) drives the bag clamping mounting frame (6403) to reciprocate translationally; the first bag clamping plate (6404) is slidably assembled on the bag clamping mounting frame (6403) through a first bag clamping connecting plate (6406), and the second bag clamping plate (6405) is slidably assembled on the bag clamping mounting frame (6403) through a second bag clamping connecting plate (6407); the bag clamping and sealing driving assembly drives the first bag clamping connecting plate (6406) and the second bag clamping connecting plate (6407) to reciprocate relatively, so as to clamp and release the bag opening by the first bag clamping plate (6404) and the second bag clamping plate (6405).

5. A vacuum sealer for a vertical bagger as defined in claim 4, wherein: The translation driving assembly (6402) comprises a translation sliding rail (6421) slidably matched with the bag clamping mounting frame (6403) and a translation servo motor assembly (6422) assembled on the bag clamping mounting frame (6403); the translation sliding rail (6421) is assembled on a rack, and a translation gear is assembled on an output shaft of the translation servo motor assembly (6422), a rack gear engaged with the translation gear is fixed on the rack assembling the translation sliding rail (6421), and the rack gear and the translation sliding rail (6421) are parallel to each other.

6. A vacuum sealer for a vertical bagger as claimed in any one of claims 1 to 3, wherein: The first sealing assembly comprises a first heat sealing cylinder and a first heat sealing iron, the second sealing assembly comprises a second heat sealing cylinder and a second heat sealing iron, the first heat sealing iron and the second heat sealing iron are oppositely arranged and parallel to the first bag clamping plate (6404) and the second bag clamping plate (6405).

7. A vacuum sealer for a vertical bagger as claimed in any one of claims 1 to 3, wherein: The bag receiving mechanism (62) comprises a bag receiving mounting base (6201), a bag receiving servo driving assembly (6202), a bag receiving transmission assembly, a sliding mounting base (6203) and a lifting plate (6204), the sliding mounting base (6203) is slidingly assembled on the bag receiving mounting base (6201), the lifting plate (6204) is installed on the sliding mounting base (6203), and the bag receiving servo driving assembly (6202) drives the sliding mounting base (6203) to move up and down reciprocatingly through the bag receiving transmission assembly.

8. A vacuum sealer for a vertical bagger as defined in claim 7, wherein: A pair of telescopic air cylinders (6205) are assembled on the lifting plate (6204) and oppositely arranged, a suction disc assembly (6207) is installed at the extending end of each telescopic air cylinder (6205), and the suction disc assemblies (6207) of the pair of telescopic air cylinders (6205) are oppositely arranged for sucking the bag bodies on two sides of the packaging bag.

9. A vacuum sealer for a vertical bagger as defined in claim 7, wherein: A pair of packaging bag baffles (6209) are assembled on the lifting plate (6204), and a bag receiving cavity (6210) for receiving the packaging bag is formed between the pair of packaging bag baffles (6209).

10. A vertical vacuum sleeve bagging machine characterized by: The packaging machine comprises a lower hopper (100), a bag store device (200), a bag taking device (300), a bag sleeving device (400), a rotary disc bag supporting device (500) and the vacuum sealing device (600) according to any one of claims 1-9.

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