A vertical packaging bag sleeving machine

Abstract

The present invention relates to the field of packaging machinery, and discloses a vertical packaging bag bagging machine, including a working platform, a plug plate with a power source is provided above the working platform, a plastic packaging bag silo is provided on the other side, a swing arm with a suction nozzle is provided below the silo, and a bag body clamping and moving device is also provided below the working platform, the bag body clamping and moving device is provided with a clamping plate, and the device is also provided with a power source for moving the clamping plate up and down, the clamping plate clamps the plastic bag filled with materials when it rises to a high position, and the clamping plate can make the top bag opening of the plastic bag be located at the heat sealing head of the heat sealing device when it descends to a low position, and the clamping plate shuttles in the clearance channel formed by the heat sealing head, so that the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate. The present invention fixes the bag body throughout the process from the material bag entering the plastic bag to the bag opening being sealed by the clamping and moving device, so that the bag surface of the plastic bag is sealed flatly, and the bottom wrinkles caused by the traditional block dragging the bottom of the bag are avoided.

Description

Technical Field

[0001] The present invention relates to the field of packaging machinery, and particularly to a vertical packaging bag sleeving machine. Background Art

[0002] Vertical packaging machines generally work in a way of feeding materials from above and sealing at the bottom. For example, in the Chinese utility model patent with the publication number CN217730958U and the name of an automatic packaging device for sheet materials, as shown in its Figure 15, the sealing device is located below the bag body expanding device. A guide plate is provided at the bottom of the sealing device, and an output channel is formed on the inner surface of the guide plate. The sealing head is arranged at the upper end inlet position of the guide plate. The sealing device is also provided with a bag body stopper for blocking the output channel. A through groove for the telescopic movement of the bag body stopper is provided on the guide plate, and the bag body stopper can telescopically move in and out along the through groove and can be adjusted up and down. The function of the bag body stopper is to hold the bag body filled with materials, and then the upper sealing head seals the bag body in the state where the bag body is held. However, for the bag body with this structure, due to the heavy materials and the flexible material of the bag body itself, there will be a state of bottom bending or even wrinkling. The bottom bending or wrinkling of the bag body will cause deformation of the bag mouth part, and the unevenness of the bag body or the bag mouth will lead to poor sealing quality, resulting in defective products. Therefore, there is an urgent need for a vertical packaging bag sleeving machine to solve the problem of poor sealing quality. Summary of the Invention

[0003] The present invention aims at the deficiencies in the prior art and provides a vertical packaging bag sleeving machine.

[0004] To solve the above technical problems, the present invention is solved by the following technical solutions:

[0005] A vertical packaging bag sleeving machine includes a working platform. Above the working platform, there is an inserting plate with a power source. The working platform has a working plane, and a gap for the inserting plate to pass through is provided on the working plane;

[0006] On the side of the working plane, there is also a material conveying platform, which conveys materials to the corresponding working station of the working platform. Between the working platform and the conveying platform, there is a material moving rack, which moves the materials from the working station to the working plane at the bottom of the inserting plate in a way of sucking or grasping or pushing;

[0007] On the other side of the working platform, there is a plastic packaging bag bin. Below the bin, there is a swinging arm with a suction nozzle. After the swinging arm swings, it sucks the packaging bag from the bin to below the working platform and finally makes the packaging bag in a vertical state. The suction nozzle on the swinging arm cooperates with the suction nozzle arranged on the other side below the working platform to open the plastic bag mouth;

[0008] A bag clamping and moving device is also provided under the working platform. The bag clamping and moving device is provided with a clamping plate and a power source that can close or separate the clamping plate. The device is also provided with a power source that can move the clamping plate up and down. When the clamping plate rises to a high position, it clamps the plastic bag that has been filled with materials. This moment is the first position. When the clamping plate descends to a low position, the top bag opening of the plastic bag can be located at the heat sealing head of the heat sealing device. This moment is the second position. The clamping plate shuttles through the yield channel formed by the heat sealing head, and finally the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate.

[0009] As another alternative, a vertical packaging bag bagging machine includes a material conveying platform, a working platform with a working plane is arranged on the material conveying platform or the body of the material conveying platform is the working plane, a plug board with a power source is arranged above the working plane, and a gap for the plug board to pass through is arranged on the working plane; a plastic packaging bag silo is arranged on the side of the working plane, and a swing arm with a suction nozzle is arranged below the silo. After the swing arm swings, it sucks the packaging bag from the silo to the bottom of the working plane and finally makes the packaging bag in a vertical state. The suction nozzle on the swing arm matches the suction nozzle arranged on the other side below the working plane. The bag is then closed so that the mouth of the plastic bag opens; a bag clamping and moving device is also provided below the working plane, and the bag clamping and moving device is provided with a clamping plate and a power source that can close or separate the clamping plate. The device is also provided with a power source that can move the clamping plate up and down. When the clamping plate rises to a high position, it clamps the plastic bag that has been filled with materials, which is the first position at this moment; when the clamping plate descends to a low position, the top bag mouth of the plastic bag can be located at the heat-sealing head of the heat-sealing device, which is the second position at this moment. The clamping plate shuttles through the yield channel formed by the heat-sealing head, and finally the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate.

[0010] Preferably, at least one of the suction nozzles on the swing arm and the suction nozzle on the other side has a power source for horizontally moving toward each other, so that the suction nozzles on both sides can suck the plastic bag. The suction nozzles on both sides move toward each other to suck the plastic bag, so that the two planes of the plastic bag can be more fully sucked and then the plastic bag can be opened. Preferably, the suction nozzle on one side of the swing arm is connected to the power source through a connecting rod, and after the swing arm swings into place, the power source drives the suction nozzle to suck the bag inward, so as to ensure that the suction nozzle is in full contact and adsorption with the plastic bag in a vertical state, so as to ensure that the plastic bag can be fully opened.

[0011] Preferably, the heat sealing head has a power source for driving it to close or separate horizontally, and the heat sealing device also includes a retaining plate, which closes synchronously with the heat sealing head, or moves toward the plastic bag earlier than the heat sealing head during heat sealing, and the middle of the retaining plate has a recess for accommodating a splint, so that when the heat sealing head is closed, the retaining plate and the splint are in contact with the outer surface of the plastic bag.

[0012] Preferably, the closed clamping plates have different widths, wherein the heat sealing head of the narrower clamping plate extends into the clearance groove of the retaining plate when closed, and the narrower clamping plate cooperates with the retaining plate and the wider clamping plate on the other side to clamp the plastic bag. The clamping plate and the retaining plate are in full contact, increasing the contact surface on both sides of the plastic bag. The matching design of the clamping plate and the retaining plate ensures that the heat sealing area is evenly stressed, and can also discharge the air in the packaging bag, further improving the sealing effect.

[0013] Preferably, a guide plate is provided below the bag body clamping and moving device.

[0014] Preferably, the bag body clamping and moving device is provided with a discharging conveyor belt. The discharging conveyor belt can also be arranged at the outlet side below the guide plate for automatic discharging.

[0015] Preferably, a plurality of guide rods capable of swinging are arranged below the working platform or the working plane, and when two adjacent guide rods are opened, they connect the gap and the bag opening to form a material feeding channel for the inserting plate to smoothly insert the material into the bag body;

[0016] Preferably, two adjacent guide rods are V-shaped when closed, and when opened, the bottom swings outward to open the two sides of the plastic bag. The coordinated action of the guide rods and the insert plate ensures that the bag opening is always aligned when the material is inserted. Furthermore, the guide rods can play a role in supporting the bag, preventing the edge of the plastic bag from being fully opened, thereby causing the material to fall crookedly or not completely into the bag.

[0017] Preferably, the bag body clamping and moving device includes a mounting seat, a crossbeam is arranged on the mounting seat, the clamping plate is fixed on the crossbeam, and the mounting seat is connected to a power source for driving the mounting seat to move up and down.

[0018] The present invention has significant technical effects due to the adoption of the above technical solution:

[0019] The clamping and moving device fixes the bag body during the whole process from the material bag entering the plastic bag to the bag opening being sealed, so that the plastic bag surface is sealed smoothly, avoiding the bottom wrinkles caused by the traditional block dragging the bottom of the bag, reducing the scrap rate and reducing the cost to a certain extent;

[0020] The clamping moving device is used to move the packaging bag containing the material to the lower station for sealing while shaping the packaging bag containing the material. This can be completed without an additional conveying device, has a simple structure and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the structure of the invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the invention;

[0023] Figure 3It is a schematic diagram of the internal structure of the invention;

[0024] Figure 4 It is a schematic diagram of the structures of the bag body clamping and moving device and the heat sealing device;

[0025] Figure 5 It is a schematic diagram of the structure of the heat sealing device;

[0026] Figure 6 It is a schematic diagram of the structure of the bag body clamping and moving device;

[0027] Figure 7 It is a schematic diagram of the structure of the bag body clamping and moving device from another angle.

[0028] The names of the parts referred to by each digital label in the above drawings are as follows: Among them, 1 is the working platform; 11 is the plug board; 2 is the conveying platform; 21 is the material moving rack; 3 is the material bin; 4 is the swing arm; 41 is the suction nozzle; 5 is the guide rod; 61 is the clamping plate; 62 is the mounting seat; 63 is the cross beam; 7 is the heat sealing device; 71 is the heat sealing head; 72 is the holding plate; 721 is the relief groove; 81 is the guiding plate; 82 is the discharge conveyor belt. Detailed implementation manners

[0029] The present invention will be further described in detail below in conjunction with the drawings and embodiments. Embodiment

[0030] A vertical packaging bag sleeving machine, as Figure 1-2 shown, includes a working platform 1. Above the working platform 1, there is a plug board 11 with a power source. The working platform 1 has a working plane, and there is a gap on the working plane for the plug board 11 to pass through;

[0031] On the side of the working plane, there is also a material conveying platform 2. The conveying platform 2 conveys the material to the corresponding working position of the working platform 1. Between the working platform 1 and the conveying platform 2, there is a material moving rack 21. The material moving rack 21 moves the material from the working position to the working plane at the bottom of the plug board 11 by means of sucking or grasping or pushing;

[0032] As Figure 2-3 shown, on the other side of the working platform 1, there is a plastic packaging bag bin 3. Below the bin 3, there is a swing arm 4 with a suction nozzle 41. After the swing arm 4 swings, it sucks the packaging bag from the bin 3 to below the working platform 1 and finally makes the packaging bag in a vertical state. The suction nozzle 41 on the swing arm 4 and the suction nozzle 41 arranged on the other side below the working platform 1 cooperate to open the plastic bag mouth;

[0033] As Figure 3As shown, a plurality of groups of swingable guide rods 5 are provided below the working platform 1. When two adjacent guide rods 5 are opened, the gap and the bag opening are connected to form a material feeding channel for the inserting plate 11 to smoothly insert the material into the bag body.

[0034] like Figure 3-6 As shown, a bag clamping and moving device is also provided under the working platform 1. The bag clamping and moving device is provided with a clamping plate 61 and a power source that can close or separate the clamping plate 61. The device is also provided with a power source that can move the clamping plate 61 up and down. When the clamping plate 61 rises to a high position, it clamps the plastic bag that has been filled with materials. This moment is the first position. When the clamping plate 61 descends to a low position, the top bag opening of the plastic bag can be located at the heat sealing head 71 of the heat sealing device 7. This moment is the second position. The clamping plate 61 shuttles through the make way channel formed by the heat sealing head 71, and finally the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate 61.

[0035] At least one of the suction nozzle 41 on the swing arm 4 and the suction nozzle 41 on the other side has a power source for horizontal movement toward each other, so as to be used for the suction nozzles 41 on both sides to suck the plastic bags.

[0036] The heat sealing head 71 has a power source that drives it to close or separate horizontally. The heat sealing device also includes a retaining plate. The retaining plate moves synchronously with the heat sealing head, or moves toward the plastic bag earlier than the heat sealing head during heat sealing. The two can use the same power source or different power sources. A retaining plate 72 is fixed on the heat sealing head 71. The retaining plate 72 moves synchronously with the heat sealing head 71. The retaining plate 72 has a clearance groove 721 in the middle to accommodate the clamping plate 61, so that when the heat sealing head 71 is closed, the retaining plate 72 and the clamping plate 61 are in contact with the outer surface of the plastic bag.

[0037] like Figure 6-7 As shown, the closed clamping plates 61 have different widths, wherein the narrower clamping plate 61 extends into the clearance groove 721 of the retaining plate 72 when the heat sealing head 71 is closed, and the narrower clamping plate 61 cooperates with the retaining plate 72 and the wider clamping plate 61 on the other side to clamp the plastic bag.

[0038] A guide plate 81 is provided below the bag body clamping moving device, and a discharge conveyor belt 82 is provided at the outlet side of the guide plate 81. Alternatively, a discharge conveyor belt 82 is provided below the bag body clamping moving device, so as to realize automatic collection of the packaged plastic bags.

[0039] The two adjacent guide rods 5 are in a V shape when closed, and when opened, the bottoms thereof swing outwards to open the two sides of the plastic bag.

[0040] The bag body clamping and moving device includes a mounting base 62, on which a cross beam 63 is provided. The clamping plate 61 is fixed to the cross beam 63, and the mounting base 62 is connected to a power source that drives it to move up and down. As one implementation, the bag body clamping and moving device includes a mounting base 62, on which a cross beam 63 is provided. The clamping plate 61 on one of the two sides is fixed to the cross beam 63 (not shown in the figure). The cross beam 63 is connected to a power source to move the clamping plate 61 on this side closer to or away from the other side. The mounting base 62 is connected to a power source that drives it to move up and down, or the cross beam 63 is connected to a power source that drives it to move up and down.

[0041] As another implementation, the bag body clamping and moving device includes a mounting base 62, on which at least two cross beams 63 are provided. The clamping plates 61 on both sides are respectively fixed to the cross beams 63 on both sides. The cross beams 63 on both sides are respectively connected to power sources that drive them to move towards each other or away from each other to close or separate the clamping plates 61, and the mounting base 62 is connected to a power source that drives it to move up and down.

[0042] Working principle: Materials are conveyed on the conveying platform 2. The material moving frame 21 moves the materials from the work station to the working plane at the bottom of the inserting plate 11 in a way of sucking, grasping or pushing. In the figure, it is the pushing way. There is a gap on the working plane for the inserting plate 11 to pass through. When the inserting plate 11 extends into the gap, it can drive the materials laid on it to be folded along the gap. The folded part enters the gap in the form of being at the bottom of the materials. The gap can extend in a row on the machine frame or multiple gaps can be set, and the same number of inserting plates 11 are arranged above for synchronous feeding.

[0043] The lower swing arm 4 sucks the bag body from the bin 3 to below the working platform 1 by using the suction nozzles 41, and the suction nozzles 41 on both sides open the bag mouth. As an alternative implementation, at least one of the suction nozzles 41 on the swing arm 4 and the suction nozzle 41 on the other side has a power source for horizontal movement towards each other. When the swing arm 4 reaches the preset position, the suction nozzles 41 are horizontal. Using the suction nozzles 41 on both sides to move towards each other to suck the plastic bag can suck the two planes of the plastic bag more fully, and then the suction nozzles 41 move away from each other to open the bag mouth.

[0044] The guide rods unfold to form a channel. The guide rods support the two sides of the already opened plastic bag outward, and the inserting plate 11 pushes the materials into the bag body.

[0045] The power source drives the clamping plate to rise and fit on both sides of the plastic bag filled with materials, clamping the plastic bag to maintain its shape. At this time, the heat sealers on both sides are in an open state so that the clamping plate can move up and down. After the clamping device rises and closes to clamp the bag body (the first position), it descends to the heat sealing position (the second position). After the bag mouth reaches the corresponding position of the heat sealer, the heat sealers close to each other to seal the bag mouth.

[0046] The two side clamps can be of the same shape and work together to hold the two sides of the plastic bag. They can also be of different shapes, one wide and one narrow. A retaining plate 72 is set below the heat sealing head 71 to assist the clamp to increase the contact surface with the packaging bag. When the heat sealing head 71 is closed, the clamp 61 is embedded in the retaining plate groove and flattens the bag opening together with the wide clamp 61 to complete the sealing. After packaging, the material is sent out and collected through the conveyor belt 82 below.

[0047] The power source mentioned in the present invention includes a linear motion power source, which is a conventional motor, motor, cylinder, electric cylinder and other devices in the field, which is directly connected to the corresponding device to drive or can be further indirectly transmitted through components such as synchronous belts, screws, synchronous wheels, connecting rods, cams, etc., and a rotating power source, which is a conventional motor, rotating cylinder and other devices in the field, or the above-mentioned devices are transmitted through components such as synchronous wheels, cams, connecting rods, etc., which will not be elaborated here. Example

[0048] The vertical packaging bag bagging machine includes a material conveying platform 2, on which a working platform with a working plane is arranged or the main body of the material conveying platform 2 is the working plane, a plug board 11 with a power source is arranged above the working plane, and a gap for the plug board 11 to pass through is arranged on the working plane; the main body of the material conveying platform 2 is a conveyor belt or a conveyor chain or other devices conventionally used by people in the field to convey materials, and the working plane arranged on the material conveying platform 2 here refers to a plate-like object, a block-like object, etc. placed on the main body of the material conveying platform 2 or separately arranged through various connection methods and used to directly contact the material. In this embodiment, the working plane refers to the part of the area on the material conveying platform 2 or the main body of the material conveying platform 2 with the material.

[0049] A plastic packaging bag silo 3 is provided on the side of the working plane 1, and a swing arm 4 with a suction nozzle 41 is provided below the silo 3. After the swing arm 4 swings, it sucks the packaging bag from the silo 3 to the bottom of the working plane 1 and finally makes the packaging bag in a vertical state. The suction nozzle 41 on the swing arm 4 cooperates with the suction nozzle 41 provided on the other side below the working plane 1 to open the mouth of the plastic bag;

[0050] A bag clamping and moving device is also provided below the working plane 1. The bag clamping and moving device is provided with a clamping plate 61 and a power source that can close or separate the clamping plate 61. The device is also provided with a power source that can move the clamping plate 61 up and down. When the clamping plate 61 rises to a high position, it clamps the plastic bag that has been filled with materials. This moment is the first position. When the clamping plate 61 descends to a low position, the top bag opening of the plastic bag can be located at the heat sealing head 71 of the heat sealing device 7. This moment is the second position. The clamping plate 61 shuttles through the make way channel formed by the heat sealing head 71, and finally the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate 61.

[0051] At least one of the suction nozzle 41 on the swing arm 4 and the suction nozzle 41 on the other side has a power source for horizontal movement toward each other, so as to be used for the suction nozzles 41 on both sides to suck the plastic bags.

[0052] The heat sealing head 71 has a power source that drives it to close or separate horizontally. The heat sealing device also includes a retaining plate. The retaining plate moves synchronously with the heat sealing head, or moves toward the plastic bag earlier than the heat sealing head during heat sealing. The two can use the same power source or different power sources. A retaining plate 72 is fixed on the heat sealing head 71. The retaining plate 72 moves synchronously with the heat sealing head 71. The retaining plate 72 has a clearance groove 721 in the middle to accommodate the clamping plate 61, so that when the heat sealing head 71 is closed, the retaining plate 72 and the clamping plate 61 are in contact with the outer surface of the plastic bag.

[0053] like Figure 6-7 As shown, the closed clamping plates 61 have different widths, wherein the narrower clamping plate 61 extends into the clearance groove 721 of the retaining plate 72 when the heat sealing head 71 is closed, and the narrower clamping plate 61 cooperates with the retaining plate 72 and the wider clamping plate 61 on the other side to clamp the plastic bag.

[0054] A guide plate 81 is provided below the bag body clamping moving device, and a discharge conveyor belt 82 is provided at the outlet side of the guide plate 81. Alternatively, a discharge conveyor belt 82 is provided below the bag body clamping moving device, so as to realize automatic collection of the packaged plastic bags.

[0055] The two adjacent guide rods 5 are in a V shape when closed, and when opened, the bottoms thereof swing outwards to open the two sides of the plastic bag.

[0056] As one embodiment, the bag body clamping and moving device includes a mounting seat 62, and a crossbeam 63 is arranged on the mounting seat 62. The clamping plate 61 on one of the two sides is fixed on the crossbeam 63 (not shown in the figure), and the crossbeam 63 is connected to a power source for moving the clamping plate 61 on the side closer to or away from the other side. The mounting seat 62 is connected to a power source for driving it to move up and down, or the crossbeam 63 is connected to a power source for driving it to move up and down.

[0057] As another embodiment, the bag body clamping and moving device includes a mounting base 62, on which at least two cross beams 63 are arranged, and the clamps 61 on both sides are respectively fixed on the cross beams 63 on both sides, and the cross beams 63 on both sides are respectively connected to a power source that drives the two to move toward or away from each other, so as to close or separate the clamps 61, and the mounting base 62 is connected to a power source that drives it to move up and down.

[0058] Working principle: Materials are conveyed on the conveying platform 2. A working plane is provided at the end of the conveying platform 2 or the conveying platform. A gap for the insertion plate 11 to pass through is provided on the working plane. When the insertion plate 11 extends into the gap, it can drive the materials laid flat thereon to be folded along the gap, and the folded part enters the gap in the form of being at the bottom of the materials. The gap can extend in a row on the frame, or multiple gaps can be provided, and the same number of insertion plates 11 are provided above for synchronous feeding.

[0059] The lower swing arm 4 sucks the bag body from the bin 3 to below the working plane 1 by using the suction nozzles 41, and the suction nozzles 41 on both sides open the bag mouth; as an alternative implementation, at least one of the suction nozzles 41 on the swing arm 4 and the suction nozzle 41 on the other side has a power source for horizontal relative movement. When the swing arm 4 reaches the preset position, the suction nozzles 41 are horizontal. Adopting the relative movement of the suction nozzles 41 on both sides to suck the plastic bag can suck the two planes of the plastic bag more fully. Then the suction nozzles 41 move away from each other to open the bag mouth.

[0060] The guide rods unfold to form a channel. The guide rods support the outer sides of the two sides of the already opened plastic bag, and the insertion plate 11 pushes the materials into the bag body.

[0061] The power source drives the clamping plates to rise and fit on both sides of the plastic bag containing the materials, clamping the plastic bag to maintain its shape. At this time, the hot sealers on both sides are in a separated state so that the clamping plates can move up and down. After the clamping device rises and closes to clamp the bag body (the first position) and then descends to the hot seal position (the second position), when the bag mouth reaches the corresponding position of the hot sealers, the hot sealers close to each other to seal the bag mouth.

[0062] The clamping plates on both sides can be selected to have the same shape and cooperate with each other to hold and clamp both sides of the plastic bag. They can also have different shapes, one wide and one narrow. A holding plate 72 is provided below the hot sealer 71 to assist the clamping plate to increase the contact surface with the packaging bag. When the hot sealer 71 closes, the clamping plate 61 is embedded in the holding plate groove and flattens the bag mouth together with the wide clamping plate 61 to complete the sealing. After packaging, the materials are sent out for collection through the lower conveyor belt 82.

[0063] The power sources mentioned in the present invention include power sources for linear motion, such as conventional devices in the art like motor lead screws, motor synchronous belts, cylinders, electric cylinders, etc., and power sources for rotation, such as conventional motors, rotating cylinders, etc. in the art, which will not be elaborated here.

[0064] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A vertical packaging bag sleeving machine, characterized in that: It comprises a working platform (1), a plug board (11) with a power source is arranged above the working platform (1), the working platform (1) has a working plane, and a gap is arranged on the working plane for the plug board (11) to pass through; A material conveying platform (2) is also included on the side of the working plane (1), and the conveying platform (2) conveys materials to the workstation corresponding to the working platform (1). A material moving frame (21) is provided between the working platform (1) and the conveying platform (2), and the material moving frame (21) moves materials from the workstation to the working platform (1) at the bottom of the insert plate (11) by suction, grabbing or pushing. A plastic packaging bag silo (3) is provided on the other side of the working platform (1), and a swing arm (4) with a suction nozzle (41) is provided below the silo (3). After the swing arm (4) swings, it sucks the packaging bag from the silo (3) to the bottom of the working platform (1) and finally makes the packaging bag in a vertical state. The suction nozzle (41) on the swing arm (4) cooperates with the suction nozzle (41) provided on the other side below the working platform (1) so that the mouth of the plastic bag opens; A bag clamping and moving device is also provided below the working platform (1). The bag clamping and moving device is provided with a clamping plate (61) and a power source capable of closing or separating the clamping plate (61). The bag clamping and moving device is also provided with a power source capable of moving the clamping plate (61) up and down. When the clamping plate (61) rises to a high position, it clamps the plastic bag filled with materials, which is the first position at this moment. When the clamping plate (61) descends to a low position, the top bag opening of the plastic bag is located at the heat sealing head (71) of the heat sealing device (7), which is the second position at this moment. The clamping plate (61) shuttles in a clearance channel formed by the heat sealing head (71), and finally the plastic bag filled with materials is heat-sealed at the second position clamped by the clamping plate (61). The heat sealing device (7) further comprises a retaining plate (72), wherein a clearance groove (721) for accommodating the clamping plate (61) is provided in the middle of the retaining plate (72), so that when the heat sealing head (71) is closed, the retaining plate (72) and the clamping plate (61) are both in contact with the outer surface of the plastic bag, and the closed clamping plates (61) have different widths, wherein the narrower clamping plate (61) extends into the clearance groove (721) of the retaining plate (72) when the heat sealing head (71) is closed, and the narrower clamping plate (61) cooperates with the retaining plate (72) and the wider clamping plate (61) on the other side to clamp the plastic bag.

2. The vertical packaging bag sleeving machine according to claim 1, wherein: At least one of the suction nozzle (41) on the swing arm (4) and the suction nozzle (41) on the other side has a power source for horizontal movement toward each other, which is used for the suction nozzles (41) on both sides to suck up plastic bags.

3. The vertical packaging bag sleeving machine according to claim 1, characterized in that: The heat sealing head (71) has a power source for driving it to close or separate horizontally, and the retaining plate (72) moves synchronously with the heat sealing head (71) to close, or moves toward the plastic bag earlier than the heat sealing head (71) during heat sealing.

4. The vertical packaging bag sleeving machine according to claim 1, characterized in that: A plurality of groups of swingable guide rods (5) are provided below the working platform (1). When two adjacent guide rods (5) are opened, they connect the gap with the bag opening to form a material feeding channel for the inserting plate (11) to smoothly insert the material into the bag body.

5. The vertical packaging bag sleeving machine according to claim 4, characterized in that: The two adjacent guide rods (5) are in a V shape when closed, and when opened, the bottoms swing outwards to open the two sides of the plastic bag.

6. The vertical packaging bag sleeving machine according to claim 1, characterized in that: The bag body clamping and moving device comprises a mounting seat (62), a crossbeam (63) is arranged on the mounting seat (62), a clamping plate (61) is fixed on the crossbeam (63), and the mounting seat (62) is connected to a power source for driving the mounting seat (62) to move up and down.

7. A vertical packaging bag sleeving machine according to claim 1, characterized in that: A guide plate (81) is provided below the bag body clamping and moving device.

8. The vertical packaging bag sleeving machine according to claim 1 or 7, characterized in that: A discharge conveyor belt (82) is provided below the bag body clamping and moving device.

9. Vertical packaging bag sleeving machine, characterized in that: It comprises a material conveying platform (2), a working platform with a working plane is arranged on the material conveying platform (2), or the main body of the material conveying platform (2) is the working plane, a plug plate (11) with a power source is arranged above the working plane, and a gap is arranged on the working plane for the plug plate (11) to pass through; A plastic packaging bag silo (3) is provided on the side of the working plane, and a swing arm (4) with a suction nozzle (41) is provided below the silo (3). After the swing arm (4) swings, it sucks the packaging bag from the silo (3) to below the working plane, and finally makes the packaging bag in a vertical state. The suction nozzle (41) on the swing arm (4) cooperates with the suction nozzle (41) provided on the other side below the working plane to open the mouth of the plastic bag; A bag clamping and moving device is also provided below the working plane. The bag clamping and moving device is provided with a clamping plate (61) and a power source capable of closing or separating the clamping plate (61). The bag clamping and moving device is also provided with a power source capable of moving the clamping plate (61) up and down. When the clamping plate (61) rises to a high position, it clamps the plastic bag already filled with materials. This is the first position. When the clamping plate (61) descends to a low position, the top bag opening of the plastic bag is located at the heat sealing head (71) of the heat sealing device (7). This is the second position. The clamping plate (61) shuttles through the clearance channel formed by the heat sealing head (71), and finally the plastic bag filled with materials is moved to the second position. The plastic bag containing the material is heat-sealed at a second position clamped by the clamping plate (61); the heat-sealing device (7) further comprises a retaining plate (72), the middle of the retaining plate (72) having a clearance groove (721) for accommodating the clamping plate (61), so that when the heat-sealing head (71) is closed, the retaining plate (72) and the clamping plate (61) are both in contact with the outer surface of the plastic bag, and the closed clamping plates (61) have different widths, wherein the narrower clamping plate (61) extends into the clearance groove (721) of the retaining plate (72) when the heat-sealing head (71) is closed, and the narrower clamping plate (61) cooperates with the retaining plate (72) and the wider clamping plate (61) on the other side to clamp the plastic bag.

10. The vertical packaging bag sleeving machine according to claim 9, characterized in that: At least one of the suction nozzle (41) on the swing arm (4) and the suction nozzle (41) on the other side has a power source for horizontal movement toward each other, which is used for the suction nozzles (41) on both sides to suck up plastic bags.

11. The vertical packaging bag sleeving machine according to claim 9, wherein: The heat sealing head (71) has a power source for driving it to close or separate horizontally, and the retaining plate (72) moves synchronously with the heat sealing head (71) to close, or moves toward the plastic bag earlier than the heat sealing head (71) during heat sealing.

12. The vertical packaging bag sleeving machine according to claim 9, wherein: A plurality of groups of swingable guide rods (5) are provided below the working plane. When two adjacent guide rods (5) are opened, they connect the gap and the bag opening to form a material feeding channel for the inserting plate (11) to smoothly insert the material into the bag body.

13. The vertical packaging bag sleeving machine according to claim 12, characterized in that: The two adjacent guide rods (5) are in a V shape when closed, and when opened, the bottoms swing outwards to open the two sides of the plastic bag.

14. The vertical packaging bag sleeving machine according to claim 9, characterized in that: The bag body clamping and moving device comprises a mounting seat (62), a crossbeam (63) is arranged on the mounting seat (62), a clamping plate (61) is fixed on the crossbeam (63), and the mounting seat (62) is connected to a power source for driving the mounting seat (62) to move up and down.

15. The vertical packaging bag sleeving machine according to claim 9, characterized in that: A guide plate (81) is provided below the bag body clamping and moving device.

16. The vertical packaging bag sleeving machine according to claim 9 or 15, characterized in that: A discharge conveyor belt (82) is provided below the bag body clamping and moving device.

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