A tray bag supporting and packing mechanism

Abstract

The present application provides a kind of tray bag supporting packing mechanism, comprising: packing platform, for carrying out tray packing operation;Bag taking device, including the packing bag placement platform for placing packing bag and the bag taking manipulator for moving packing bag on packing bag placement platform to packing platform;Bag supporting device, for opening packing bag;Pushing device, for pushing the tray to be packed into opened packing bag;Pumping device, for vacuumizing packing bag;Sealing device, for heat melting and sealing packing bag.The present application can realize automatic feeding of packing bag, automatic feeding of tray, automatic sealing, heat melting and discharging, and is reliable and stable in operation, with high packing efficiency and good effect, and wide application range.

Description

Technical Field

[0001] This invention relates to a tray packaging device, and more particularly to a tray bag-supporting packaging mechanism. Background Technology

[0002] In the process of optical lens manufacturing, the optical lenses need to be placed in a housing component to facilitate turnover and multi-step processing of the optical lenses. The housing component is generally composed of plate A and plate B. Plate A serves as the base plate for placing the lens, and plate B serves as the cover plate for sealing, preventing the lens from falling out, and facilitating the storage and handling of the lens.

[0003] The aforementioned container is also called a tray. To facilitate handling, the trays are packaged when leaving the warehouse. Usually, multiple trays are tied together with rubber bands to form a whole, which makes them easier to handle. In the existing technology, packaging and packing are usually done manually, which is inconvenient and inefficient. Therefore, there is an urgent need to develop a packing device that can automatically realize packaging and sealing. Summary of the Invention

[0004] Technical problems to be solved

[0005] The technical problem to be solved by the present invention is to provide a compact material tray bag holding and packaging mechanism that can automatically pick up bags, fill materials, empty and seal them.

[0006] Technical solutions to the problem

[0007] This invention provides a tray-supported bag packaging mechanism, comprising:

[0008] Packaging platform 45 is used for packaging material trays;

[0009] The bag-retrieving device 42 includes a bag-placement platform 44 for placing packaging bags and a bag-retrieving robot for moving the packaging bags on the bag-placement platform 44 to a packaging platform.

[0010] Bag-opening device 46, used to open the packaging bag;

[0011] The pushing device 47 is used to push the tray to be packaged into the opened packaging bag;

[0012] Vacuum extraction device, used to vacuum the packaging bags;

[0013] Sealing device 43 is used to heat-seal the packaging bag.

[0014] Furthermore, the packaging bag placement platform 44 is located directly below the packaging platform 45, and the packaging platform 44 can rotate horizontally and open or close the material inlet at the upper end of the packaging bag placement platform 44.

[0015] Furthermore, the packaging platform 45 includes one or more platform plates capable of horizontal rotation and a platform plate driving device for driving the platform plates to rotate horizontally. When the platform plates are in a horizontal state, the packaging platform is formed; when the platform plates are rotated to a vertical state, an opening is formed, and the upper end of the packaging bag placement platform 44 is opened to form a material picking window.

[0016] Furthermore, the bag-retrieving robot includes a main mounting base disposed above the packaging platform 45 and capable of horizontal sliding, a secondary mounting base 4201 vertically sliding on the main mounting base, and a first suction cup 4202 disposed downward for absorbing the packaging bag on the secondary mounting base 4201.

[0017] Furthermore, there are multiple first suction cups 4202 arranged in a rectangular pattern.

[0018] Furthermore, a discharge cylinder 4203 is vertically arranged on the auxiliary mounting base 4201, and a second suction cup 4204 is provided at the lower output end of the discharge cylinder 4203 for picking up the packaged material tray and conveying it to the finished product discharge station.

[0019] Furthermore, the second suction cup 4204 is a sponge suction cup and can pick up irregularly shaped items.

[0020] Furthermore, the second suction cup 4204 is disposed between the first suction cups 4202.

[0021] Furthermore, the feeding end of the packaging platform 45 is equipped with an upward-facing third suction cup 4804. The third suction cup 4804 can move vertically and is used to suction the lower opening of the packaging bag to fully open the bag opening and provide entry space for the bag-supporting device 46.

[0022] Furthermore, the pushing device 47 includes a placing platform 4702 for placing the tray to be packaged, and a push plate 4703 facing the packaging platform 45 and used to horizontally push the tray on the placing platform 4702 onto the packaging platform 45; the bag supporting device 46 includes a plurality of bag supporting rods symmetrically arranged on both sides of the placing platform 4702 and parallel to the sliding direction of the push plate 4703. The bag supporting rods can slide horizontally toward or away from the placing platform 4702, and a bag supporting area is formed between the bag supporting rods. The width and height of the bag supporting area are variable and can be horizontally inserted into the packaging bag and opened.

[0023] Furthermore, the bag-supporting device 46 includes:

[0024] The first slide block 4601 can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device 47.

[0025] The fourth mounting base 4602 is horizontally slidably mounted on the first slide block 4601. The sliding direction of the fourth mounting base 4602 is perpendicular to the sliding direction of the first slide block 4601. There are two fourth mounting bases 4602 and they are symmetrically arranged. The two fourth mounting bases 4602 can move towards each other or away from each other. The pushing device 47 is located between the two fourth mounting bases 4602.

[0026] The bag support assembly is installed on the fourth mounting base 4602 and includes a fixed slider and a movable slider 4605 that is vertically slidably mounted on the upper end of the fixed slider. Both the fixed slider and the movable slider are equipped with bag support rods, and the length direction of the bag support rods is parallel to the sliding direction of the first slide block 4601.

[0027] Furthermore, a guide plate 4611 is fixed to the inner side of the fourth mounting base 4602, and a guide area is formed between the two guide plates 4611.

[0028] Furthermore, the bag support rod includes an upper bag support rod fixed on the movable slider and a lower bag support rod 4606 fixed on the fixed slider. The lower bag support rod 4606 has an L-shaped cross-section. The support rod is provided with a horizontal support part. The upper surface of the support part forms a support surface, which is used to contact the bottom surface of the material tray and provide support when pushing the material. The side wall of the lower bag support rod is a limiting surface and is used to limit the lower position of the material tray.

[0029] Furthermore, the feed end of the guide plate 4611 is bent outward to form an oblique guide portion.

[0030] Furthermore, two third pulleys 4603 are arranged in parallel on the first slide block 4601, and a third belt 4604 is provided between the two third pulleys 4603. The movement direction of the third belt 4604 is parallel to the sliding direction of the fourth mounting base 4602. The two fourth mounting bases 4602 are respectively connected to the third belts 4604 on both sides of the third pulleys 4603 and can realize synchronous movement in opposite directions or in opposite directions.

[0031] Furthermore, two fourth pulleys 4607 are arranged in parallel on the fourth mounting base 4602, and a fourth belt 4608 is provided between the two fourth pulleys 4607. The movement direction of the fourth belt 4608 is parallel to the sliding direction of the movable slider 4605. The movable slider 4605 is connected to the fourth belt 4608 and can achieve vertical sliding.

[0032] Furthermore, the air extraction device includes an air extraction pipe 4610 disposed on the side wall of the fourth mounting base 4602 and capable of horizontal sliding. The length direction and sliding direction of the air extraction pipe 4610 are parallel to the sliding direction of the first slide block 4601.

[0033] Furthermore, the suction pipe 4610 is a rigid pipe and can flatten the opening of the packaging bag when the fourth mounting base 4602 slides.

[0034] Furthermore, the sealing device 43 includes an upper pressure plate 4301 that slides vertically above the feeding end of the packaging platform 45 and a lower pressure plate 4801 that slides vertically below the feeding end. Both the upper pressure plate 4301 and the lower pressure plate 4801 are strip-shaped and their length direction is perpendicular to the pushing direction of the pushing device 47. The lower end of the upper pressure plate 4301 is provided with a heat sealing knife 4302 and an upper sealing strip 4303. The top of the lower pressure plate 4801 can contact the heat sealing knife 4302 and the upper sealing strip 4303 to achieve heat sealing and sealing.

[0035] Furthermore, the upper pressure plate 4301 and the bag-retrieving robot are mounted on the same base.

[0036] Furthermore, the heat sealing blade 4302 and the upper sealing strip 4303 are respectively slidably mounted vertically on the lower end of the upper pressure plate 4301 via guide rods, and the lower pressure plate 4301 is provided with elastic components that give the heat sealing blade 4302 and the upper sealing strip 4303 a downward movement tendency.

[0037] Furthermore, when in the lower limit position, the height of the lower sealing surface of the upper sealing strip 4303 is lower than the height of the heat sealing surface of the heat sealing knife 4302.

[0038] Furthermore, a suction cylinder 4805 is vertically arranged at the lower end of the lower pressure plate 4801, and a third suction cup 4804 is provided at the upper output end of the suction cylinder 4805. The lower pressure plate 4801 has an opening 48010 for the third suction cup 4804 to pass through and extend to the upper end of the lower pressure plate 4801, thereby suctioning the lower end of the packaging bag to fully open the bag opening.

[0039] Beneficial effects

[0040] This invention relates to a tray-supported bag-packing mechanism. The vertical structure positions the bag placement platform directly below the packaging platform, reducing installation space and improving structural compactness. It also minimizes the bag's movement path, reducing idle travel time and increasing work efficiency. The upper and lower multi-suction cup structure ensures the bag opening is fully open, facilitating smooth entry of the supporting mechanism and improving reliability and stability. The movable supporting structure allows for full unfolding of the bag, providing entry space for pushing the material, ensuring smooth pushing and good operational reliability and stability. The lower supporting rod adopts an L-shaped structure, which... The tray is used to open the bag and guide the material tray into the bag, preventing it from rubbing against the inner wall of the bag and ensuring smooth and stable entry. A telescopic vacuum tube structure is included to vacuum the bag and flatten the bag opening, ensuring the quality of subsequent sealing and heat sealing, and preventing folding of the bag opening from affecting the sealing and heat-sealing effect. This invention's tray-supporting bag packaging mechanism can automatically feed the bag, automatically feed the tray, automatically seal, heat-seal, and discharge. It is reliable, stable, efficient, and effective, with a wide range of applications. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the material tray bag-supporting and packaging mechanism of the present invention;

[0042] Figure 2 This is a schematic diagram of the material tray bag-supporting and packaging mechanism of the present invention from another angle;

[0043] Figure 3 This is a schematic diagram of the bag-taking device of the material tray bag-supporting and packaging mechanism of the present invention;

[0044] Figure 4 This is a schematic diagram of the installation of the bag-supporting device in the material tray bag-supporting and packaging mechanism of the present invention;

[0045] Figure 5 This is a schematic diagram of the bag-supporting device of the material tray bag-supporting packaging mechanism of the present invention;

[0046] Figure 6 This is a cross-sectional view of the bag-supporting device of the material tray bag-supporting packaging mechanism of the present invention;

[0047] Figure 7 This is a schematic diagram of the material pushing device of the material tray supporting bag packaging mechanism of the present invention;

[0048] Figure 8 This is a schematic diagram of the material pushing device of the material tray supporting bag packaging mechanism of the present invention from another angle.

[0049] Figure 9 This is a schematic diagram of the lower pressure plate of the material tray bag-supporting and packaging mechanism of the present invention;

[0050] Figure 10 A cross-sectional view of the lower pressure plate of the material tray supporting bag packaging mechanism of the present invention;

[0051] Figure 11 for Figure 10 Enlarged view of section B in the middle;

[0052] Figure 12 This is a schematic diagram of the sealing device of the material tray bag packaging mechanism of the present invention;

[0053] Figure 13 This is a schematic diagram of the sealing device of the material tray bag packaging mechanism of the present invention from another angle;

[0054] Figure 14 This is a schematic diagram of the bag-taking device of the material tray bag-supporting and packaging mechanism of the present invention;

[0055] Figure 15 This is a schematic diagram of the bag-taking device of the material tray bag-supporting and packaging mechanism of the present invention from another angle. Detailed Implementation

[0056] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0057] See Figures 1-15 This invention provides a tray bagging and packaging mechanism for bagging trays that have been secured with elastic bands. It includes a packaging platform 45, a bag-taking device, a bag-supporting device 46, a material-pushing device 47, an air extraction device, and a sealing device 43.

[0058] The packaging platform 45 is used for packaging material trays, that is, it serves as a working platform for packaging operations.

[0059] The bag-retrieving device is used to retrieve packaging bags for packaging operations. The bag-retrieving device includes a packaging bag placement platform 44 and a bag-retrieving robot. The packaging bag placement platform 44 is used to place packaging bags. When placed, the packaging bags are stacked. The bag-retrieving robot is used to retrieve packaging bags from the packaging bag placement platform and move them to the packaging platform to provide the required packaging bags for the packaging operations.

[0060] The bag-opening device 46 is used to open the packaging bag, thereby providing a sufficient opening for the material tray to enter (the packaging bag), and avoiding the bag opening being too small to affect normal entry and cause packaging failure;

[0061] The pushing device 47 is used to push the tray to be packaged into the opened packaging bag, thereby realizing the loading of the tray;

[0062] The vacuum device is used to vacuum the packaging bag, that is, to fully expel the air inside the packaging bag, so that the packaging bag fits the surface of the inner tray, and avoids bulging due to the presence of air, which would affect the subsequent storage and stacking.

[0063] The sealing device 43 is used to heat-seal the opening of the packaging bag to achieve internal sealing.

[0064] See Figures 1-2 To reduce the overall size of the equipment, minimize space occupation, and improve compactness, in this application, the packaging bag placement platform 44 is located directly below the packaging platform 45. Simultaneously, the packaging platform 44 can rotate horizontally, thereby enabling the opening or closing of the material handling port at the upper end of the packaging bag placement platform 44. Specifically, the packaging platform 45 includes a platform plate and a platform plate driving device. There are one or more platform plates; in this embodiment, there are two platform plates arranged symmetrically, capable of horizontal rotation, i.e., the rotation axis is parallel to the horizontal plane. Each platform plate is shaped like a double door. The platform plate driving device is used to drive the platform plate to rotate horizontally to realize "opening" and "closing". When the platform plate is in a horizontal state, that is, in the "closed" state, it can withstand the load force, that is, items can be placed on the platform plate. At this time, a packaging platform is formed. When the platform plate rotates to a vertical state or tends to a vertical state, an opening is formed to realize "opening". This makes the upper end of the packaging bag placement platform 44 open, forming a material picking window. At this time, the bag picking device can pass through the door and take out the packaging bag from the packaging bag placement platform 44.

[0065] The bag-retrieving robot includes a dual-axis slide 41, enabling horizontal movement along two axes (X-axis and Y-axis). It is located above the packaging platform 45. A mounting base is provided on the dual-axis slide, which also slides horizontally under the action of the slide. A secondary mounting base 4201 is vertically mounted on the mounting base, enabling lifting. A drive mechanism connected to the secondary mounting base 4201 is provided on the mounting base to drive the lifting of the fourth mounting base. This drive mechanism can be a cylinder or a lead screw and nut structure. A first suction cup 4202 is mounted on the secondary mounting base 4201, with its working end facing vertically downwards, generating suction at the lower end to pick up the packaging bag. In this embodiment, the first... Multiple suction cups 4202 are arranged in a rectangular pattern. To facilitate material discharge after packaging and improve the gripping strength, in this embodiment, a discharge cylinder 4203 is vertically installed on the auxiliary mounting base 4201. The output end of the discharge cylinder is vertically downward. At the same time, a second suction cup 4204 is provided at the output end of the discharge cylinder 4203. The second suction cup 4204 is used to pick up the packaged tray for conveying it to the finished product discharge station. The second suction cup 4204 is a cuboid sponge suction cup that can pick up irregular items. When picking up, it can adhere to the packaged tray to improve the suction strength and prevent it from falling off during transportation. The second suction cup 4204 is located between the first suction cups 4202, that is, the first suction cups are located on the outer edge of the second suction cups.

[0066] See Figures 14-15 In order to fully open the bag opening and allow the bag-opening device to enter smoothly, in this embodiment, a third suction cup 4804 is installed at the feeding end of the packaging platform 45. The working end of the third suction cup 4804 is vertically upward, and there are at least two of them, arranged in parallel. They can suck up the lower sides of the bag opening, making the bag opening open in a rectangular shape. The third suction cup 4804 can move vertically. When it is necessary to open, it rises vertically and sucks up the bag. After sucking, it descends to provide working space for other processes (such as sealing). The third suction cup can cooperate with the first suction cup, one sucking from the top and the other from the bottom, thereby fully opening the bag opening and providing entry space for the bag-opening device 46, improving the reliability and stability of the operation.

[0067] See Figure 7 and Figure 8 The feeding device 47 includes a feeding platform 4702 and a pusher plate 4703. The feeding platform 4702 is used to place the trays to be packaged. Specifically, it includes a base, on which a horizontally arranged plate 4701 is fixed. The plate 4701 is a strip plate, and the plate 4701 is located on the same horizontal plane as the packaging platform. The front end of the plate 4701 (the end closer to the packaging platform) forms the feeding platform 4702. A pusher rod 4704 is horizontally arranged on the plate 4701. The length of the push rod is parallel to the length of the plate and it can move axially, that is, it can slide horizontally towards or away from the material placement platform. Therefore, it is also equipped with a drive device for driving the axial movement of the push rod. The drive device can be a cylinder, a belt, or a screw and nut assembly. A push plate 4703 is fixed at the head of the push rod. The push plate is perpendicular to the axis of the push rod and is used to push the material tray on the material placement platform 4702 horizontally into the packaging bag on the packaging platform 45, thereby realizing the packaging feeding.

[0068] See Figures 5-6 The bag-supporting device 46 includes multiple bag-supporting rods symmetrically arranged on both sides of the material placement platform 4702. The bag-supporting rods are rods whose length direction is parallel to the sliding direction of the push plate 4703, and the bag-supporting rods can slide horizontally towards or away from the material placement platform 4702, that is, their sliding direction is parallel to the pushing direction of the push plate. A bag-supporting area is formed between the bag-supporting rods. The bag-supporting area is rectangular, and the width and height of the bag-supporting area are variable. Therefore, the packaging bag can be inserted horizontally and opened. That is, when insertion is required, the height and width of the bag-supporting area are small, that is, the distance between two adjacent bag-supporting rods is small. At this time, it can ensure that the bag-supporting rods can smoothly enter the packaging bag. After fully entering, the length and height of the bag-supporting area increase, that is, the distance between two adjacent bag-supporting rods increases, and they contact the inner wall of the packaging bag and support the packaging bag, ensuring the smooth pushing (feeding) of the material.

[0069] The structure of the bag-supporting device in this application is described in detail below:

[0070] The bag-supporting device 46 includes a first slide block 4601, a fourth mounting base 4602, and a bag-supporting assembly. The first slide block 4601 can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device 47. It is also equipped with a driving device for driving the first slide block 4601 to slide horizontally. This driving device can be a cylinder, belt, or screw and nut assembly. The fourth mounting base 4602 slides horizontally on the first slide block 4601, and its sliding direction is perpendicular to the sliding direction of the first slide block 4601. There are two fourth mounting bases 4602, symmetrically arranged at both ends of the first slide block 4601. The two fourth mounting bases 4602 can move towards each other (approaching each other) or away from each other (moving away from each other). The pushing device 47 is located between the two fourth mounting bases 4602. Specifically, in the first... A slide block 4601 is provided with two parallel third pulleys 4603, and a third belt 4604 is provided between the two third pulleys 4603. The movement direction of the third belt 4604 is parallel to the sliding direction of the fourth mounting base 4602. The two fourth mounting bases 4602 are respectively connected to the third belts 4604 on both sides of the third pulleys 4603, and can realize synchronous movement towards each other or backward movement. In this embodiment, the line connecting the two third pulleys is taken as the center line, and the conveying directions of the belts on both sides are opposite. The two fourth mounting bases are respectively connected to the belts on both sides of the center line, thereby realizing synchronous movement towards or away from each other. In order to improve the reliability and stability of operation, the above-mentioned third pulleys and third belts are synchronous pulleys and synchronous belts, which improves the synchronicity of the sliding of the fourth mounting base.

[0071] The bag support assembly is installed on the fourth mounting base 4602, including a fixed slider and a movable slider 4605. The fixed slider is fixed on the fourth mounting base, and the movable slider 4605 is vertically slidable on the fourth mounting base and located directly above the fixed slider. It moves up and down to move closer to or away from the fixed slider. Bag support rods are installed on both the fixed slider and the movable slider, facing the packaging platform, and their length direction is parallel to the sliding direction of the first slide block 4601. In this embodiment, a lower bag support rod 4606 is fixed on the fixed slider. The lower bag support rod 4606 has an L-shaped cross-section, with its lower end being horizontal and forming a support part. The upper surface of the support part forms a support surface, which is used for the bottom surface of the material tray to contact the support surface when pushing the material, avoiding direct contact with the packaging bag and ensuring smooth feeding. To avoid impact caused by the material tray contacting the end of the support surface when feeding, this embodiment... In this embodiment, the feed end of the support is bent downwards to form a guide. This guide is a slope with an inclination angle of 10-30 degrees. The side wall of the lower support rod is used to limit the feeding of the tray, preventing it from sliding left and right and improving feeding accuracy. The above structure greatly improves the smoothness of the tray entering the packaging bag, avoiding friction with the packaging bag during the feeding process, which would affect normal feeding or even damage the packaging bag. This improves the reliability and stability of feeding. That is, the lower support rod 4606 is used to open the bag on one hand and to guide the tray into the bag on the other hand, preventing it from rubbing against the inner wall of the packaging bag. An upper support rod 46051 is provided on the side wall of the movable slider. The upper support rod 46051 is mainly used to move upwards and open the packaging bag, providing sufficient space height for the tray to feed, so that the tray can smoothly enter the packaging bag.

[0072] To ensure the accuracy of feeding and pushing, a guide plate 4611 is fixed on the inner side of the fourth mounting base 4602. The guide plate 4611 is vertically set and flush with the side wall of the lower support bag rod, that is, it is located on the same vertical plane, which allows the material tray to move smoothly between the two upper support bag rods and then into the packaging bag. A guiding area is formed between the two guide plates 4611. The feeding end of the guide plate 4611 is bent outward at 10-30 degrees to form an inclined guide, which allows the material tray on the material placement platform to smoothly enter the guiding area.

[0073] Two fourth pulleys 4607 are arranged in parallel on the fourth mounting base 4602, and a fourth belt 4608 is provided between the two fourth pulleys 4607. The movement direction of the fourth belt 4608 is parallel to the sliding direction of the movable slider 4605. The movable slider 4605 is connected to the fourth belt 4608 and can slide vertically, thereby controlling the height of the bag support area. The above-mentioned fourth pulleys and fourth belts are synchronous pulleys and synchronous belts, which can improve the running accuracy and avoid slippage.

[0074] See Figure 5The vacuum device includes a vacuum pipe 4610 disposed on the side wall of the fourth mounting base 4602 and capable of horizontal sliding. Specifically, a pipe slide 4609 is provided on the outer side wall of the fourth mounting base. The pipe slide 4609 is located between the upper support bag rod 46051 and the lower support bag rod 4606 and can slide horizontally. The length direction and sliding direction of the vacuum pipe 4610 are parallel to the sliding direction of the first slide 4601. A cylinder is provided on the fourth mounting base for driving the vacuum pipe 4610 to slide horizontally, so that the vacuum pipe enters the packaging bag and achieves vacuuming. The tail end of the vacuum pipe is connected to a vacuum device. In this embodiment, the vacuum pipe 4610 is a rigid pipe, which can be a metal pipe or a high-strength plastic rod. It can flatten the bag opening when the fourth mounting base 4602 slides, ensuring the flatness of the bag opening during sealing (heat sealing) and improving the packaging quality.

[0075] See Figures 9-13 The sealing device 43 includes an upper pressure plate 4301 and a lower pressure plate 4801. The upper pressure plate is vertically slidably mounted above the feeding end of the packaging platform 45, and the lower pressure plate 4801 is vertically slidably mounted below the feeding end. During operation, both are located on the same vertical plane. Both the upper pressure plate 4301 and the lower pressure plate 4801 are strip-shaped and horizontal, with their length direction perpendicular to the pushing direction of the pushing device 47. A heat sealing knife 4302 and an upper sealing strip 4 are provided at the lower end of the upper pressure plate 4301. 303, the top of the lower pressure plate 4801 can contact the heat sealing knife 4302 and the upper sealing strip 4303 to achieve heat sealing and sealing. In this application, the lower pressure plate is vertically slidably mounted between the material placement table and the packaging platform via the guide rod 4802. A drive device 4803 is also provided for driving the lower pressure plate to rise and fall. This drive device can be a belt, cylinder, or screw nut assembly. When it is at the lower limit position, the lower pressure plate is located below the packaging workbench, and at this time, it will not obstruct the material pushing and packaging process. When it is at the upper limit position, it is used for sealing and heat-melting the packaging bag. To improve structural compactness and reduce installation space, in this application, a bag suction cylinder 4805 is fixed at the lower end of the lower pressure plate 4801. The bag suction cylinder 4805 is vertically arranged with its output end facing upwards. A mounting plate 4806 is provided at its output end, and a third suction cup 4804 facing upwards is fixed on the mounting plate 4806. Meanwhile, on the lower pressure plate 4801... 1 has a hole 48010 through which a third suction cup 4804 passes. The third suction cup 4804 passes through the hole 48010 and extends upward to the upper end of the lower pressure plate 4801. At this time, the distance to the opening of the packaging bag can be reduced, thereby sucking the lower opening of the packaging bag to fully open the packaging bag opening. After the packaging bag is sucked in, it is reset. At this time, the third suction cup is located in the hole, that is, its top is lower than the top surface of the lower pressure plate, thereby enabling the heat melting and sealing process.

[0076] The heat-sealing blade 4302 and the upper sealing strip 4303 are vertically slidably mounted on the lower end of the upper pressure plate 4301 via guide rods. Meanwhile, an elastic component, a spring, is provided on the lower pressure plate 4301, which allows the heat-sealing blade 4302 and the upper sealing strip 4303 to have a downward movement tendency, thereby achieving elastic contact with the lower pressure plate and improving the sealing and heat-sealing effect. In this embodiment, when at the lower limit position, i.e., under the action of their respective elastic forces, the height of the lower sealing surface of the upper sealing strip 4303 is lower than the height of the heat-sealing surface of the heat-sealing blade 4302. Therefore, the upper sealing strip can first contact the lower pressure plate to achieve sealing and fixing of the packaging bag, and then the heat-sealing blade 4303 contacts the lower pressure plate to achieve heat sealing.

[0077] To improve structural compactness, reduce production difficulty and cost, and avoid collisions during movement, in this embodiment, the upper pressure plate 4301 and the bag-retrieving robot are mounted on the same base and share a dual-axis slide. Therefore, during movement, the upper pressure plate and the bag-retrieving robot can move synchronously, resulting in high structural compactness, low manufacturing cost, and safe and reliable operation.

[0078] This invention relates to a tray-supported bag-packing mechanism. The vertical structure positions the bag placement platform directly below the packaging platform, reducing installation space and improving structural compactness. It also minimizes the bag's movement path, reducing idle travel time and increasing work efficiency. The upper and lower multi-suction cup structure ensures the bag opening is fully open, facilitating smooth entry of the supporting mechanism and improving reliability and stability. The movable supporting structure allows for full unfolding of the bag, providing entry space for pushing the material, ensuring smooth pushing and good operational reliability and stability. The lower supporting rod adopts an L-shaped structure, which... The tray is used to open the bag and guide the material tray into the bag, preventing it from rubbing against the inner wall of the bag and ensuring smooth and stable entry. A telescopic vacuum tube structure is included to vacuum the bag and flatten the bag opening, ensuring the quality of subsequent sealing and heat sealing, and preventing folding of the bag opening from affecting the sealing and heat-sealing effect. This invention's tray-supporting bag packaging mechanism can automatically feed the bag, automatically feed the tray, automatically seal, heat-seal, and discharge. It is reliable, stable, efficient, and effective, with a wide range of applications.

[0079] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A material tray bag-supporting and packaging mechanism, characterized in that, include: Packaging platform (45) is used for packaging material trays; The bag-retrieving device includes a bag-placement platform (44) for placing the packaging bags and a bag-retrieving robot for moving the packaging bags on the bag-placement platform (44) to the packing platform; Bag-opening device (46) for opening the packaging bag; The pushing device (47) is used to push the tray to be packaged into the opened packaging bag; Vacuum extraction device, used to vacuum the packaging bags; Sealing device (43) is used to heat-seal the packaging bag; The packaging platform (45) is located directly above the packaging bag placement platform. It includes two platform plates and a platform plate driving device for driving the platform plates to rotate horizontally. The two platform plates are symmetrically arranged and their rotation axes are parallel to the horizontal plane. The two platform plates are in the shape of double doors. The platform plate driving device drives the two platform plates to rotate downward. When the two platform plates are both in a horizontal state, they are joined together to form the packaging platform. When the two platform plates rotate downward to a vertical state or tend to be vertical, an opening is formed between them, so that the upper end of the packaging bag placement platform is open and forms a material picking window. The bag picking device can pass through the opening and pick up the packaging bag from the packaging bag placement platform.

2. The material tray bag-supporting and packaging mechanism as described in claim 1, characterized in that: The bag-picking robot includes a main mounting base that is positioned above the packaging platform (45) and can slide horizontally. A secondary mounting base (4201) is vertically mounted on the main mounting base. A first suction cup (4202) facing downwards and used to pick up the packaging bag is mounted on the secondary mounting base (4201).

3. The material tray bag-supporting and packaging mechanism as described in claim 2, characterized in that: A discharge cylinder (4203) is vertically arranged on the auxiliary mounting base (4201). The lower output end of the discharge cylinder (4203) is provided with a second suction cup (4204) for picking up the packaged material tray and conveying it to the finished product discharge station.

4. The material tray bag-supporting and packaging mechanism as described in claim 1, characterized in that: The packaging platform (45) is equipped with an upward-facing third suction cup (4804) at its feed end. The third suction cup (4804) can move vertically and is used to suction the lower opening of the packaging bag to fully open the bag opening and provide entry space for the bag-supporting device (46).

5. The material tray bag-supporting and packaging mechanism as described in claim 1, characterized in that: The pushing device (47) includes a placing platform (4702) for placing the tray to be packaged, and a push plate (4703) facing the packaging platform (45) and used to horizontally push the tray on the placing platform (4702) to the packaging platform (45); the bag supporting device (46) includes a plurality of bag supporting rods symmetrically arranged on both sides of the placing platform (4702) and parallel to the sliding direction of the push plate (4703). The bag supporting rods can slide horizontally toward or away from the placing platform (4702). A bag supporting area is formed between the bag supporting rods. The width and height of the bag supporting area are variable and can be horizontally inserted into the packaging bag and opened.

6. The material tray bag-supporting and packaging mechanism as described in claim 1, characterized in that: The bag-supporting device (46) includes: The first slide (4601) can slide horizontally, and its sliding direction is parallel to the pushing direction of the pushing device (47); The fourth mounting base (4602) is horizontally slidably mounted on the first slide (4601). The sliding direction of the fourth mounting base (4602) is perpendicular to the sliding direction of the first slide (4601). There are two fourth mounting bases (4602) and they are symmetrically arranged. The two fourth mounting bases (4602) can move towards each other or away from each other. The pushing device (47) is located between the two fourth mounting bases (4602). The bag support assembly is installed on the fourth mounting base (4602) and includes a fixed slider and a movable slider (4605) that is vertically slidably mounted on the upper end of the fixed slider. Both the fixed slider and the movable slider are equipped with bag support rods, and the length direction of the bag support rods is parallel to the sliding direction of the first slide block (4601).

7. The material tray bag-supporting and packaging mechanism as described in claim 6, characterized in that: The air extraction device includes an air extraction pipe (4610) disposed on the side wall of the fourth mounting base (4602) and capable of horizontal sliding. The length direction and sliding direction of the air extraction pipe (4610) are parallel to the sliding direction of the first slide (4601).

8. The material tray bag-supporting and packaging mechanism as described in claim 7, characterized in that: The suction pipe (4610) is a rigid pipe and can flatten the opening of the packaging bag when the fourth mounting base (4602) slides.

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