A hexagonal vacuum packaging forming device for granular materials

Abstract

The present invention discloses a hexagonal vacuum packaging forming device for granular materials, comprising a lower vacuum chamber, an upper cover, and a shaping mold. A shaping cylinder is provided at the bottom of the lower vacuum chamber, the shaping mold is installed within the lower vacuum chamber, a supporting plate within the shaping mold is connected to a connecting column, the connecting column extends downwardly through the shaping module and is magnetically connected to the piston rod of the shaping cylinder, a clamping plate device is installed within the lower vacuum chamber above the shaping mold, the upper cover is installed to cover the top of the lower vacuum chamber, and a clamping heat sealing device is installed within the upper cover. The shaping mold of the present invention is easy to replace and install, reduces replacement complexity, and improves replacement efficiency.

Description

Technical Field

[0001] The invention relates to the field of granular material packaging devices, in particular to a granular material hexagonal vacuum packaging forming device. Background Art

[0002] Hexagonal vacuum packaging for granular materials (generally rice, beans, etc.) is popular among granular material packaging companies due to its ease of placement and transportation, as well as its extended shelf life due to the vacuum packaging process. Currently, hexagonal vacuum packaging equipment used for vacuum packaging of granular materials on the market is capable of packaging hexagonal vacuum packages of multiple sizes (e.g., 2.5kg, 5kg, 10kg, etc.), meaning it can be multi-functional. The forming mold inside the vacuum chamber can be replaced to form packages of different sizes. However, existing hexagonal vacuum packaging equipment is very cumbersome and time-consuming to replace the forming mold, and the forming mold is difficult to position during installation, resulting in inconvenient replacement and low efficiency. Summary of the Invention

[0003] The invention provides a hexagonal vacuum packaging forming device for granular materials, so as to solve the problem of inconvenience in replacement and positioning of shaping dies in hexagonal vacuum packaging equipment in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A device for vacuum packaging and forming hexagonal shapes of granular materials, comprising a lower vacuum chamber, an upper cover plate and a shaping mold; the top of the lower vacuum chamber is open to form an opening connected to the indoor space of the lower vacuum chamber, a shaping cylinder is installed at the bottom of the lower vacuum chamber, the piston rod of the shaping cylinder extends vertically upward into the indoor space, and a suction joint and a blowing nozzle connected to the indoor space are installed on the side wall of the lower vacuum chamber; the shaping mold is placed in the lower vacuum chamber, and mounting angle irons are respectively connected to the two horizontal sides of the shaping mold, and supporting tables are respectively provided in the lower vacuum chamber at the corresponding mounting angle iron positions on each side for supporting the corresponding side mounting angle irons, and pressure plates are respectively rotatably installed on the supporting tables for pressing the corresponding side mounting angle irons, a mold cavity is provided in the shaping mold, and the mold cavity is used to place a packaging bag containing granular materials, The top of the shaping mold is open to form a cavity mouth of the mold cavity, and the cavity mouth is used for the bag mouth of the packaging bag to extend out. A liftable support plate is installed in the mold cavity, and the support plate is used to support the packaging bag. The bottom of the support plate is connected to a connecting column, and the connecting column passes through the bottom of the shaping mold. The piston rod of the shaping cylinder is magnetically connected to the connecting column by magnetic attraction. A movable clamping plate device is installed in the lower vacuum chamber above the cavity mouth of the shaping mold top, and the clamping plate device is used to clamp the bag mouth of the packaging bag; the upper cover plate is installed to cover the top opening of the lower vacuum chamber, and there is a cavity in the upper cover plate. The bottom of the upper cover plate is open to form the cavity mouth of the cavity, so that the upper cover plate is connected with the lower vacuum chamber through the cavity mouth, and a movable clamping heat sealing device is installed in the cavity of the upper cover plate, and the clamping heat sealing device is used to heat seal the bag mouth of the packaging bag.

[0006] Furthermore, the piston rod end of the shaping cylinder is connected to a first magnet, and the lower end of the connecting column is connected to a magnetic seat. The piston rod end of the shaping cylinder and the lower end of the connecting column are magnetically connected to the magnetic seat through the first magnet.

[0007] Furthermore, the horizontal cross-sectional area of the first magnet is larger than the horizontal cross-sectional area of the magnetic base, or the horizontal cross-sectional area of the magnetic base is larger than the horizontal cross-sectional area of the first magnet.

[0008] Furthermore, a second magnet is fixed to the bottom surface of the shaping mold, and the second magnet is used to magnetically cooperate with the magnetic seat.

[0009] Furthermore, the clamping plate device includes a pair of clamping plates, which are arranged inside the lower vacuum chamber and symmetrically distributed in the Y direction. Each clamping plate is fixed on a slider, and the sliders are slidably assembled on guide pillars extending along the Y direction. The guide pillars are fixed inside the lower vacuum chamber. The two clamping plates are also connected by a first synchronous reverse linkage mechanism. The clamping plate device is composed of the clamping plates, sliders, guide pillars, and the first synchronous reverse linkage mechanism; a clamping plate driving cylinder is installed on the side wall of the lower vacuum chamber, and the piston rod of the clamping plate driving cylinder extends into the interior of the lower vacuum chamber along the Y direction and is fixedly connected to one of the clamping plates. The corresponding clamping plate is driven by the clamping plate driving cylinder to move in the Y direction, and the other clamping plate is synchronously reversed by the first synchronous reverse linkage mechanism, thereby realizing the synchronous clamping action and mutual separation of the two clamping plates.

[0010] Furthermore, the first synchronous reverse linkage mechanism includes a first bearing, a first swing arm, and a pair of first connecting rods. The first bearing is fixed inside the lower vacuum chamber. The middle of the first swing arm is rotatably mounted on the first bearing through a rotating shaft. The two first connecting rods are respectively arranged at both ends of the first swing arm. One end of each first connecting rod is rotatably connected to the corresponding end of the first swing arm, and the other ends of the two first connecting rods are rotatably connected to the two splints one by one.

[0011] Furthermore, the clamping heat sealing device includes a pair of heat sealing blocks, which are arranged in the cavity of the upper cover plate and symmetrically distributed in the Y direction, each heat sealing block is respectively fixed to the mounting plate, and each mounting plate is respectively fixed to the slide, and the slides are respectively assembled on guide columns extending along the Y direction, and the guide columns are fixed to the inside of the upper cover plate, and the two mounting plates are connected by a second synchronous reverse linkage mechanism. The clamping heat sealing device is composed of the heat sealing blocks, the mounting plates, the slides, the guide columns, and the second synchronous reverse linkage mechanism; a heat sealing block driving cylinder is installed on the side wall of the upper cover plate, and the piston rod of the heat sealing block driving cylinder extends into the interior of the upper cover plate along the Y direction and is fixedly connected to one of the mounting plates, and the corresponding mounting plate and the heat sealing block are driven by the heat sealing block driving cylinder to move in the Y direction, and the other mounting plate and the heat sealing block are synchronized and reversed by the second synchronous reverse linkage mechanism, thereby realizing the synchronous clamping action and mutual separation of the two heat sealing blocks.

[0012] Furthermore, the second synchronous reverse linkage mechanism includes a second bearing, a second swing arm, and a pair of second connecting rods. The second bearing is fixed inside the upper cover plate. The middle of the second swing arm is rotatably mounted on the second bearing through a rotating shaft. The two second connecting rods are respectively arranged at both ends of the second swing arm. One end of each second connecting rod is rotatably connected to the corresponding end of the second swing arm, and the other ends of the two second connecting rods are rotatably connected to the two mounting plates one by one.

[0013] In the present invention, the connecting column connected to the support plate in the shaping mold is connected to the piston rod of the shaping cylinder in the lower vacuum chamber by magnetic attraction, and the shaping mold is placed in the lower vacuum chamber by installing an angle iron, and the installing angle iron is fixed by a pressing plate. When replacing the shaping mold, the pressing plate is rotated to disengage from the installing angle iron, and then the piston rod of the shaping cylinder is disengaged from the connecting column, and the shaping mold can be pulled out, thereby having the advantage of easy disassembly. When installing the shaping mold, after pressing the pressing plate on the installing angle iron, the piston rod of the shaping cylinder is magnetically attracted to the connecting column to achieve connection, without the need for repeated positioning, and having the advantage of easy assembly.

[0014] In the present invention, the clamping plate assembly and the heat-sealing device, through their respective synchronous reverse linkage mechanisms, can each achieve synchronized clamping and separation, thereby providing precise and reliable clamping and heat-sealing of packaging bags. Each clamping plate assembly and the heat-sealing device are driven by a single cylinder, eliminating the need for multiple drive units, resulting in a simple structure and cost savings.

[0015] Therefore, compared with the prior art, the present invention has the advantages of easy replacement and installation and no need for precise positioning when replacing the shaping mold, thereby reducing the complexity of replacement and improving replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a front view of the overall structure of an embodiment of the present invention.

[0018] Figure 3 It is a front perspective view of the lower vacuum chamber structure in an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the internal structure of the assembled lower vacuum chamber and shaping mold in an embodiment of the present invention.

[0020] Figure 5 It is a half-section view of the shaping mold structure in an embodiment of the present invention.

[0021] Figure 6 It is a front view of the shaping mold structure in an embodiment of the present invention.

[0022] Figure 7 2 is a schematic diagram of the upper cover structure in an embodiment of the present invention.

[0023] Figure 8 It is a bottom view of the upper cover structure in an embodiment of the present invention.

[0024] Figure 9 Schematic diagram of the structure of the clamping heat sealing device inside the upper cover plate in an embodiment of the present invention.

[0025] Figure 10 It is a working process diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0026] To help those skilled in the art better understand the present invention, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and examples. This will help those skilled in the art to fully understand and implement the present invention by applying technical means to solve technical problems and achieve corresponding technical effects. The embodiments of the present invention and the various features therein may be combined with each other as long as they do not conflict with each other, and the resulting technical solutions are all within the scope of protection of the present invention.

[0027] Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or apparatuses.

[0029] like Figure 1 、 Figure 2 As shown, this embodiment discloses a hexagonal vacuum packaging forming device for granular materials, including a lower vacuum chamber 1, an upper cover plate 2 and a shaping mold 3.

[0030] like Figure 3 、 Figure 4As shown, in this embodiment, the lower vacuum chamber 1 includes a solid upper chamber 1013 and a lower chamber 1014. The upper chamber 1013 is a rectangular box structure surrounded by two side panels in the X direction (i.e., the left side panel and the right side panel), two side panels in the Y direction (i.e., the front side panel and the rear side panel), and a bottom panel 1017. The top of the upper chamber 1013 is open to form an opening. The bottom panel 1017 of the upper chamber 1013 is provided with an opening 1015 in the middle. The sides of the top of the upper chamber 1013 extend outward to form a surrounding panel. The lower chamber 1014 is also a rectangular box structure surrounded by side panels on both sides of the X direction (i.e., the left side panel and the right side panel), side panels on both sides of the Y direction (i.e., the front side panel and the rear side panel) and a bottom plate 1018. The top of the lower chamber 1014 is open, and the length and width of the lower chamber 1014 are both smaller than the length and width of the upper chamber 1013, thereby making the horizontal cross-sectional area of the lower chamber 1014 smaller than the horizontal cross-sectional area of the upper chamber 1013, and the height of the lower chamber 1014 is greater than the height of the upper chamber 1013. The top opening of the lower chamber 1014 is fixed to the opening 1015 position of the bottom plate 1017 of the upper chamber 1013, thereby making the upper chamber 1013 and the lower chamber 1014 connected to each other to form a lower vacuum chamber 1 of a T-shaped box structure.

[0031] The bottom surface of the lower vacuum chamber 1, i.e., the bottom surface of the bottom plate 1018 of the lower chamber 1014, is fixedly mounted with a shaping cylinder 101. The piston rod of the shaping cylinder 101 extends vertically upward into the interior of the lower chamber 1014, and the end of the piston rod of the shaping cylinder 101 is fixedly connected to a first magnet 105. The bottom plate 1017 of the upper chamber 1013 is mounted with an exhaust connector 102. One end of the exhaust connector 102 is connected to the interior of the upper chamber 1013, and the other end of the exhaust connector 102 is connected to an external air supply device via an air valve. The side panels on both sides of the upper chamber 1013 (i.e., the left panel and the right panel) in the X direction are each mounted with an air blowing nozzle 103. One end of the air blowing nozzle 103 is connected to the interior of the upper chamber 1013, and the other end of the air blowing nozzle 103 is connected to an external air source via an air valve.

[0032] Two groups of pressure plate groups are provided on the inner bottom surface of the upper chamber 1013 (i.e., the top surface of the bottom plate 1017 of the upper chamber 1013). The two groups of pressure plate groups are respectively located outside the X-direction two sides (i.e., the left side and the right side) of the opening 1015 of the bottom plate 1017 of the upper chamber 1013. Each group of pressure plate groups includes two pressure plates 104 distributed front and back, and the pressure plates 104 are respectively rotatably installed on the inner bottom surface of the upper chamber 1013 through an axial vertical rotating shaft.

[0033] Two guide pillars 108 are provided inside the upper chamber 1013. The two guide pillars 108 are respectively located outside the two sides of the opening 1015 in the bottom plate 1017 of the upper chamber 1013 in the X direction (i.e., the left side and the right side). The axial direction of each guide pillar 108 extends along the Y direction, and the two ends of each guide pillar 108 are respectively fixedly connected to the front and rear side plates of the upper chamber 1013. A pair of splints 106 are also provided inside the upper chamber 1013. The two splints 106 are respectively located outside the Y-direction side edges (i.e., the front side edge and the rear side edge) of the opening 1015 of the bottom plate 1017 of the upper chamber 1013. The long side of each splint 106 extends along the X-direction, and the long side length of the splint 106 is greater than the corresponding side length of the opening 1015 of the bottom plate 1017 of the upper chamber 1013. The bottom surfaces of the two splints 106 are both higher than the top surface of the bottom plate 1017 of the upper chamber 103. The bottom ends of each splint 106 in the X-direction are respectively fixedly connected with a slider 107. The sliders 107 at the bottom left ends of the two splints 106 are both slidably mounted on the guide column on the left, and the sliders at the bottom right ends of the two splints 106 are both slidably mounted on the guide column 108 on the right.

[0034] Two sets of first synchronous reverse linkage mechanisms are further disposed within the upper chamber 1013. Each set of first synchronous reverse linkage mechanisms includes a first bearing 1010, a first swing arm 1011, and two first connecting rods 1012. One set of first synchronous reverse linkage mechanisms is located at the left end of the two clamping plates 106 to achieve synchronous reverse linkage of the two clamping plates 106, while the other set of first synchronous reverse linkage mechanisms is located at the right end of the two clamping plates 106 to achieve synchronous reverse linkage of the two clamping plates 106. Specifically, the axial direction of the first bearing 1010 in the first synchronous reverse linkage mechanism on the right is X-direction, and the first bearing 1010 on the right is installed on the right side plate of the upper chamber 1013. The middle position of the first swing arm 1011 in the first synchronous reverse linkage mechanism on the right is rotatably installed on the corresponding first bearing 1010 through a rotating shaft. One end of each of the two first connecting rods 1012 in the first synchronous reverse linkage mechanism on the right is rotatably connected to the two ends of the first swing arm 1011 through a pin shaft with an axial direction in the X-direction, and the other end of each of the two first connecting rods 1012 is rotatably connected to the right end of the two splints 106 through a pin shaft 1016 with an axial direction in the X-direction. Similarly, the first bearing in the first synchronous reverse linkage mechanism on the left is installed on the left side plate of the upper chamber 1013, and the middle position of the first swing arm in the first synchronous reverse linkage mechanism on the left is rotatably installed on the corresponding first bearing through a rotating shaft. One end of each of the two first connecting rods in the first synchronous reverse linkage mechanism on the left is rotatably connected to the two ends of the first swing arm through a pin shaft, and the other end of each of the two first connecting rods is rotatably connected to the left ends of the two splints through a pin shaft.

[0035] The front side plate of the upper chamber 1013 is fixedly installed with a splint driving cylinder 109, and the piston rod of the splint driving cylinder 109 extends into the interior of the upper chamber 1013 along the Y direction and is fixedly connected to the splint 106 on the front side. The splint driving cylinder 109 drives the front splint 106 to move in the Y direction. When the front splint 106 moves in the Y direction, the left and right ends of the front splint 106 respectively rotate the left and right first swing arms 1011 through the corresponding first connecting rods 1012. When the first swing arm 1011 rotates, the rear splint is reversed through the first connecting rods corresponding to the left and right ends of the rear splint, thereby realizing the synchronous clamping action and mutual separation of the two splints 106. The splint device is composed of the splint 106, the slider 107, the guide column 108, and the first synchronous reverse linkage mechanism.

[0036] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, in this embodiment, the shaping mold 3 is a rectangular mold surrounded by two side plates in the X direction (i.e., the left side plate and the right side plate), two side plates in the Y direction (i.e., the front side plate and the rear side plate) and a bottom plate. The horizontal cross-sectional area of the shaping mold 3 is smaller than the cross-sectional area of the opening 1015 in the middle of the bottom plate of the upper chamber 1013 in the lower vacuum chamber 1. The interior of the shaping mold 3 is a mold cavity, and the top of the shaping mold 3 is open. The outer walls of the left and right sides of the shaping mold 3 are respectively fixed with mounting angle irons 301, and a support plate 302 is vertically slidably installed in the mold cavity of the shaping mold 3. The bottom of the support plate 302 is connected to a connecting column 303, and the connecting column 303 passes downward from the bottom plate of the shaping mold 3, and the lower end of the connecting column 303 is connected to a magnetic seat 304. A second magnet 305 is also fixed to the bottom surface of the bottom plate of the shaping mold 3, and the second magnets 305 are all located above the magnetic seat 304. When the magnetic seat 304 rises to contact with the second magnet 305, the second magnet 305 can be attracted to the magnetic seat 304 by magnetic force.

[0037] The shaping mold 3 is installed as a whole in the lower vacuum chamber 1. Specifically, the lower half of the shaping mold 3 extends into the lower chamber 1014 of the lower vacuum chamber 1 through the opening 1015 in the middle of the bottom plate of the upper chamber 1013, and the piston rod end of the shaping cylinder 101 installed on the bottom plate of the lower chamber 1014 is magnetically connected to the magnetic seat 304 at the lower end of the connecting column 303 through the first magnet 105. The first magnet 105 and the magnetic seat 304 both have a sufficiently large horizontal cross-sectional area, and the horizontal cross-sectional area of the first magnet 105 is larger than the horizontal cross-sectional area of the magnetic seat 304, or the horizontal cross-sectional area of the magnetic seat 304 is larger than the horizontal cross-sectional area of the first magnet 105. Therefore, no positioning adjustment is required during magnetic attraction. The upper half of the shaping mold 3 extends into the interior of the upper chamber 1013, and the mounting angle irons 301 installed on the left and right side plates of the shaping mold 3 are respectively placed on the bottom plate 1017 of the upper chamber 1013 outside the left and right sides of the opening 1015. The top surface of the bottom plate 1017 of the upper chamber 1013 is used as a supporting table to support the mounting angle iron 301. The pressure plates 104 outside the left and right sides of the opening 1015 are respectively pressed on the mounting angle irons 301 on the corresponding sides. The mounting angle irons 301 on the corresponding sides are pressed by the pressure plates 104, thereby fixing the shaping mold 3 in the lower vacuum chamber 1. After the shaping mold 3 is fixed, the top surface of the shaping mold 3 is lower than the bottom surfaces of the two clamps 106.

[0038] like Figure 7 、 Figure 8 、 Figure 9 As shown, in this embodiment, the upper cover plate 2 is a box structure formed by two side plates in the X direction (i.e., the left and right sides), two side plates in the Y direction (i.e., the front and rear sides), and a bottom plate. The bottom of the upper cover plate 2 is open to form the cavity of the box body, and the bottom of the upper cover plate 2 extends outward to form a surrounding plate. A circle of sealing rings 209 is fixed to the bottom surface of the surrounding plate. A pair of mounting plates 202, a pair of heat sealing blocks 201, and a pair of guide posts 204 are provided in the cavity of the upper cover plate 2. The two mounting plates 202 are symmetrically distributed in the Y direction within the cavity of the upper cover plate 2, and the long side of each mounting plate 202 extends along the X direction. The two heat sealing blocks 201 are fixed to the opposite surfaces of the two mounting plates 202 in a one-to-one correspondence, and a heat insulation pad 210 is provided between the heat sealing block 201 and the corresponding mounting plate 202. Each heat sealing block 201 is integrated with a heating rod 211 and a temperature sensor 212. The two guide posts 204 are symmetrically distributed in the X-direction within the cavity of the upper cover 2. The axial direction of each guide post 204 is in the Y-direction, and the two ends of each guide post 204 are respectively fixed to the front and rear side panels of the upper cover 2. A slide 203 is respectively fixed to the two ends of each mounting plate 204 in the X-direction. The slides 203 at each end of each mounting plate 204 are slidably mounted on the two guide posts 204 in a one-to-one correspondence.

[0039] Two sets of first synchronous reverse linkage mechanisms are also provided in the cavity of the upper cover plate 2. Each set of first synchronous reverse linkage mechanisms includes a second bearing 206, a second swing arm 207, and two second connecting rods 208. Two sets of first synchronous reverse linkage mechanisms are located at the left ends of the two mounting plates 204 to achieve synchronous reverse linkage of the two mounting plates 204, while the other set of second synchronous reverse linkage mechanisms is located at the right ends of the two mounting plates 204 to achieve synchronous reverse linkage of the two mounting plates 204. Specifically, the axial direction of the second bearing 206 in the right second synchronous reverse linkage mechanism is in the X direction, and the right second bearing 206 is mounted on the right side plate of the upper cover plate 2. The middle position of the second swing arm 207 in the right second synchronous reverse linkage mechanism is rotatably mounted on the corresponding second bearing 206 via a rotating shaft. The two second connecting rods 208 in the right second synchronous reverse linkage mechanism are each rotatably connected at one end to the two ends of the second swing arm 207 via a pin with an axial direction in the X direction, and the other ends of the two second connecting rods 208 are each rotatably connected at one end to the right ends of the two mounting plates 204 via a pin with an axial direction in the X direction. Similarly, the second bearing in the left second synchronous reverse linkage mechanism is mounted on the left side plate of the upper cover plate 2. The middle position of the second swing arm in the left second synchronous reverse linkage mechanism is rotatably mounted on the corresponding second bearing via a rotating shaft. The two second connecting rods in the left second synchronous reverse linkage mechanism are each rotatably connected at one end to the two ends of the second swing arm via a pin, and the other ends of the two second connecting rods are each rotatably connected at one end to the left ends of the two mounting plates via a pin.

[0040] The front side plate of the upper cover 2 is fixedly installed with a heat sealing block driving cylinder 205, and the piston rod of the heat sealing block driving cylinder 205 extends into the interior of the upper cover 2 along the Y direction and is fixedly connected to the mounting plate 202 on the front side. The heat sealing block driving cylinder 205 drives the front mounting plate 202 to move in the Y direction. When the front mounting plate 202 moves in the Y direction, the left and right ends of the front mounting plate 202 respectively rotate the left and right second swing arms 207 through the corresponding second connecting rods 208. When the second swing arms 207 rotate, the rear mounting plate is reversed through the second connecting rods corresponding to the left and right ends of the rear mounting plate, thereby realizing the synchronous clamping action and mutual separation of the two mounting plates 202. The clamping type heat sealing device is composed of the heat sealing block 201, the mounting plate 202, the slide 203, the guide column 204, and the second synchronous reverse linkage mechanism.

[0041] The upper cover plate 2 is installed on the top opening of the upper chamber 1013 in the lower vacuum chamber 1 with the cavity opening facing downward, so that the upper cover plate 2 is connected with the upper chamber 1013 through the cavity opening. The covering makes the surrounding plate of the upper cover plate 2 and the surrounding plate of the upper chamber 1013 match, and sealing is achieved by the sealing ring 209.

[0042] When replacing the shaping mold 3 in this embodiment, the upper cover plate 2 is removed, and the piston rod of the shaping cylinder 101 is retracted until the first magnet 105 and the magnetic seat 304 configured for the shaping mold 3 are separated from each other, and then the pressing plate 104 is rotated to separate the rotating pressing plate 104 from the mounting angle iron 301 on the corresponding side, and then the shaping mold 3 is directly removed to replace the shaping mold of other specifications. When installing the shaping mold 3 in this embodiment, the shaping mold 3 is inserted into the lower vacuum chamber 1, and the piston rod of the shaping cylinder 101 is extended until the first magnet 105 is adsorbed and connected with the magnetic seat 304, and then the pressing plate 104 is rotated to press the mounting angle iron 301 to complete the assembly.

[0043] The working process of this implementation example is as follows:

[0044] like Figure 10 As shown, first remove the upper cover plate 2, so that the lower vacuum chamber 1 is in the normally open state. At this time, the shaping mold 3 is also open at the top, and the lower vacuum chamber 1 is moved to the bottom of the guide barrel 5. The packaging bag 4 is placed on the lower end of the guide barrel 5, and the granular material is placed into the packaging bag 4 through the guide barrel 5. The piston rod of the shaping cylinder 101 of the lower vacuum chamber 1 is retracted, so that the two clamping plates 106 in the upper chamber 1013 are separated from each other. At the same time, the guide barrel 5 is pressed Figure 10 The bag 4 is inserted downwardly into the shaping mold 3 in the direction of arrow A, so that the bag 4 enters the mold cavity of the shaping mold 3. The bottom of the bag 4 is supported by the support plate 302 in the shaping mold 3. After the bag 4 enters the shaping mold 3, the guide cylinder 5 rises and separates. At this time, the bag opening of the bag 4 extends out from the top opening of the shaping mold 3 and the top opening of the upper chamber 1013.

[0045] Next, the lower vacuum chamber 1 moves below the upper cover plate 2. During this movement, the piston rod of the shaping cylinder 101 rapidly extends and retracts, causing the granular material in the packaging bag 4 to swing up and down. When the lower vacuum chamber 1 moves below the upper cover plate 2, the piston rod of the shaping cylinder 101 extends, ensuring that the distance H between the upper surface of the granular material in the packaging bag 4 and the lower surface of the clamping plate 106 remains at 1 / 2 the width W (net width) of the shaping mold 3.

[0046] Then, when the piston rod of the clamp driving cylinder 109 is extended, the guide rod drives the front clamp 106 to move backward. At this time, the first connecting rods 1012 installed on the left and right ends of the front clamp 106 push the first swing arm 1011 to rotate counterclockwise. When the first swing arm 1011 rotates counterclockwise, it drives the first connecting rods at both ends of the rear clamp to rotate, thereby moving the rear clamp forward until the front clamp 106 and the rear clamp are closed in the middle to clamp the bag opening of the packaging bag 4. At the same time, the piston rod of the shaping cylinder 101 on the lower vacuum chamber 1 is extended, and the upper plane of the packaging bag 4, including the packaging bag, is fitted with the lower plane of the two clamps 106. At the same time, the upper cover 2 is pressed Figure 10Move downward in the direction of the arrow B until it covers the top of the lower vacuum chamber 1, and exhaust the air in the lower vacuum chamber 1 and the upper cover plate 2 from the exhaust joint 102 of the lower vacuum chamber 1 through an external vacuum device.

[0047] After the vacuum is applied, the heat-sealing block on the upper cover plate 2 drives the piston rod of the cylinder 205 to extend, driving the front mounting plate 202 to move backward. The second connecting rods 208 at the left and right ends of the front mounting plate 202 push the second swing arm 207 to rotate counterclockwise. The counterclockwise rotation of the second swing arm 207 drives the second connecting rods at both ends of the rear mounting plate to rotate, thereby causing the rear mounting plate to move forward simultaneously until the two heat-sealing blocks 201 close in the middle, sealing the bag opening of the packaging bag 4 and completing the heat seal. After the heat seal is completed, air enters the vacuum chamber through the reversing valve and the exhaust connector 102 of the lower vacuum chamber 1. At the same time, air is blown through the blowing nozzle 103 to the heat-sealing block 201 and the bag opening of the packaging bag 4 to reduce the temperature.

[0048] Finally, the upper cover plate 2 clamps the packaging bag 4 and moves upward to pull the packaging bag 4 out of the shaping mold 3, and the heat-sealed packaging bag 4 is sent to the next process.

[0049] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. Such combinations should also be regarded as the contents disclosed in this disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0050] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by those skilled in the art should fall within the scope of protection of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A hexagonal vacuum packaging forming device for granular materials, characterized in that: The invention comprises a lower vacuum chamber (1), an upper cover plate (2) and a shaping mold (3); the top of the lower vacuum chamber (1) is open to form an opening connected to the interior space of the lower vacuum chamber (1); a shaping cylinder (101) is installed at the bottom of the lower vacuum chamber (1); a piston rod of the shaping cylinder (101) extends vertically upward into the interior space; a suction joint (102) and a blowing nozzle (103) connected to the interior space are installed on the side wall of the lower vacuum chamber (1); the shaping mold (3) is placed In the lower vacuum chamber (1), the shaping mold (3) is connected to mounting angle irons (301) on both sides in the horizontal direction. A support table is provided at the position of the mounting angle iron (301) on each side in the lower vacuum chamber (1) for supporting the mounting angle iron (301) on the corresponding side. A pressing plate (104) is rotatably installed on the supporting table for pressing the mounting angle iron (301) on the corresponding side. The shaping mold (3) has a mold cavity, which is used to place a packaging bag containing granular materials. The top of the mold (3) is open to form a cavity opening for the bag opening of the packaging bag to extend out. A lifting support plate (302) is installed in the mold cavity. The support plate (302) is used to support the packaging bag. The bottom of the support plate (302) is connected to a connecting column (303). The connecting column (303) passes through the bottom of the shaping mold (3). The piston rod of the shaping cylinder (101) is magnetically connected to the connecting column (303) by magnetic attraction. The lower vacuum chamber (1) is located in the shaping mold ( 3) A movable clamping plate device is installed above the top cavity opening, and the clamping plate device is used to clamp the bag opening of the packaging bag; the upper cover plate (2) is installed to cover the top opening of the lower vacuum chamber (1), and a cavity is formed in the upper cover plate (2). The bottom of the upper cover plate (2) is open to form the cavity opening of the cavity, so that the upper cover plate (2) is connected with the lower vacuum chamber (1) through the cavity opening, and a movable clamping heat sealing device is installed in the cavity of the upper cover plate (2), and the clamping heat sealing device is used to heat seal the bag opening of the packaging bag; The piston rod end of the shaping cylinder (101) is connected to a first magnet (105), and the lower end of the connecting column (303) is connected to a magnetic seat (304). The piston rod end of the shaping cylinder (101) and the lower end of the connecting column (303) are magnetically connected to the magnetic seat (304) via the first magnet (105); The horizontal cross-sectional area of the first magnet (105) is larger than the horizontal cross-sectional area of the magnetic base (304), or the horizontal cross-sectional area of the magnetic base (304) is larger than the horizontal cross-sectional area of the first magnet (105); A second magnet (305) is also fixed to the bottom surface of the shaping mold (3), and the second magnet (305) is used to magnetically cooperate with the magnetic seat (304).

2. The device for forming hexagonal vacuum packaging of granular materials according to claim 1, characterized in that: The clamping plate device comprises a pair of clamping plates (106), the two clamping plates (106) are arranged inside the lower vacuum chamber (1) and are symmetrically distributed in the Y direction, each clamping plate (106) is fixed on a slider (107), the sliders (107) are slidably assembled on a guide post (108) extending along the Y direction, the guide post (108) is fixed inside the lower vacuum chamber (1), and the two clamping plates (106) are also connected by a first synchronous reverse linkage mechanism, which is composed of the clamping plates (106), the sliders (107), the guide posts (108) and the like. 8) The first synchronous reverse linkage mechanism constitutes a clamping type clamping plate device; a clamping plate driving cylinder (109) is installed on the side wall of the lower vacuum chamber (1), and the piston rod of the clamping plate driving cylinder (109) extends into the interior of the lower vacuum chamber (1) along the Y direction and is fixedly connected to one of the clamping plates (106). The clamping plate driving cylinder (109) drives the corresponding clamping plate (106) to move in the Y direction, and the first synchronous reverse linkage mechanism causes the other clamping plate to move synchronously in the opposite direction, thereby realizing the synchronous clamping action and mutual separation of the two clamping plates (106).

3. The device for forming hexagonal vacuum packaging of granular materials according to claim 2, characterized in that: The first synchronous reverse linkage mechanism comprises a first bearing (1010), a first swing arm (1011), and a pair of first connecting rods (1012), wherein the first bearing (1010) is fixed inside the lower vacuum chamber (1), the middle of the first swing arm (1011) is rotatably mounted on the first bearing (1010) via a rotating shaft, and the two first connecting rods (1012) are respectively arranged at both ends of the first swing arm (1011), one end of each first connecting rod (1012) is rotatably connected to the corresponding end of the first swing arm (1011), and the other ends of the two first connecting rods (1012) are rotatably connected to the two clamping plates (106) in a one-to-one correspondence.

4. The device for forming hexagonal vacuum packaging of granular materials according to claim 1, characterized in that: The clamp-type heat sealing device comprises a pair of heat sealing blocks (201), the two heat sealing blocks (201) are arranged in the cavity of the upper cover plate (2) and are symmetrically distributed in the Y direction, each heat sealing block (201) is respectively fixed on the mounting plate (202), each mounting plate (202) is respectively fixed on the slide seat (203), the slide seats (203) are respectively assembled on the guide posts (204) extending along the Y direction, the guide posts (204) are fixed inside the upper cover plate (2), and the two mounting plates (202) are connected by a second synchronous reverse linkage mechanism. 203), a guide column (204), and a second synchronous reverse linkage mechanism constitute a clamping type heat sealing device; a heat sealing block driving cylinder (205) is installed on the side wall of the upper cover plate (2), and the piston rod of the heat sealing block driving cylinder (205) extends into the interior of the upper cover plate (2) along the Y direction and is fixedly connected to one of the mounting plates (202); the heat sealing block driving cylinder (205) drives the corresponding mounting plate (202) and the heat sealing block (201) to move in the Y direction, and the second synchronous reverse linkage mechanism causes the other mounting plate and the heat sealing block to move synchronously in the opposite direction, thereby realizing the synchronous clamping action and mutual separation of the two heat sealing blocks (201).

5. The device for forming hexagonal vacuum packaging of granular materials according to claim 4, characterized in that: The second synchronous reverse linkage mechanism comprises a second bearing (206), a second swing arm (207), and a pair of second connecting rods (208). The second bearing (206) is fixed inside the upper cover plate (2). The middle of the second swing arm (207) is rotatably mounted on the second bearing (206) via a rotating shaft. The two second connecting rods (208) are respectively arranged at both ends of the second swing arm (207). One end of each second connecting rod (208) is rotatably connected to the corresponding end of the second swing arm (207). The other ends of the two second connecting rods (208) are rotatably connected to the two mounting plates (202) in a one-to-one correspondence.

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