Automatic filling and sealing integrated machine

Abstract

The application discloses an automatic filling and sealing integrated machine and relates to the technical field of filling and sealing machines.The automatic filling and sealing integrated machine comprises a frame body, a table top is arranged at the top of the frame body, a control display structure, a liquid supply structure, a carrying structure and a hot-pressing structure are installed above the table top, an envelope film supply structure for conveying envelope films is installed in the frame body, a driving assembly is installed at the top of the table top, a rotating disc is installed at the top of the driving assembly, a tray rack that is circumferentially distributed is installed at the top of the rotating disc, a groove for placing a crystal tray is formed in the tray rack, a clamping assembly and an envelope film positioning assembly are arranged in the tray rack, and the clamping assembly is used for fixing the crystal tray in the groove.The automatic positioning and clamping of the crystal tray in the whole process of transmission and filling and sealing are realized through the cooperation of the rotating disc, the guide assembly and the clamping assembly, and the production quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of filling and sealing machine technology, and more specifically to an automatic filling and sealing integrated machine. Background Technology

[0002] A filling and sealing machine is a device with an internal filling and sealing mechanism. It is used for quantitative filling and heat-sealing of PP boxes, plastic cups, and aluminum-plastic boxes. It is widely used for medical lens holders, ointments, food, and small plastic reagent boxes. In use, the liquid is filled into the small box, and then a sealing film is applied for heat sealing. It is widely used in the food, daily chemical, and pharmaceutical industries.

[0003] Current filling and sealing machines still have the following problems: 1. After the trays and PP boxes are placed, there is a lack of structures for positioning and clamping them. This causes the crystal trays to easily shift when transferred between the filling, sealing and hot pressing stations, resulting in filling deviation or sealing misalignment, which affects production quality and efficiency.

[0004] 2. Due to the different placement of the heat-sealing film and the heat-pressing position, the sealing film is prone to displacement during the movement process, which not only affects the heat-pressing effect, but also leads to a reduction in product consistency.

[0005] 3. During heat sealing, the impact load generated by the downward pressure of the hot press head acts directly on the bottom drive component, which can easily lead to a decrease in equipment stability and a shortened service life after long-term use.

[0006] Therefore, it is necessary to propose an automatic filling and sealing machine to solve the above problems. Summary of the Invention

[0007] In view of the above situation and to overcome the defects of the prior art, the present invention provides an automatic filling and sealing machine to solve the problems mentioned in the background art.

[0008] The technical solution is as follows: The present invention includes a frame, a tabletop on top of the frame, a control and display structure, a liquid supply structure, a conveying structure, and a hot pressing structure mounted on the tabletop, a sealing film feeding structure for conveying sealing films installed inside the frame, a drive assembly mounted on top of the tabletop, a rotating disk mounted on top of the drive assembly, and a circumferentially distributed tray frame mounted on top of the rotating disk. The tray frame has a groove for placing crystal trays inside, and a clamping assembly and a sealing film positioning assembly are provided inside the tray frame. The clamping assembly fixes the crystal trays in the grooves, and the sealing film positioning assembly positions the sealing films. A guide assembly for driving the clamping assembly is located below the rotating disk. A lifting component is provided at the bottom of the rotating disk near the hot pressing structure. The lifting component supports the rotating disk from the bottom. A pressing component is provided on the hot pressing structure. The pressing component drives the sealing film positioning component and the lifting component to operate.

[0009] Preferably, the tray frame has guide tubes located on both sides of the groove inside, the clamping assembly includes a clamping block slidably connected in the guide tube, a first oblique groove is provided on one side of the clamping block, a clamping support rod that moves up and down is provided below the clamping block, a sliding pin is connected to the top of the clamping support rod located in the first groove, and the bottom of the clamping support rod is connected to a lifting drive device.

[0010] Preferably, the guide assembly includes an annular plate connected to the top of the tabletop, the annular plate having a through guide groove inside, an extension rod connected to the bottom of the clamping support rod, one end of the extension rod being located in the guide groove, the clamping support rod and the tray frame being connected by a spring, the guide groove including a clamping part, a releasing part, a reversing part and a vertical part, and a blocking assembly provided at the vertical part of the guide groove.

[0011] Preferably, a fixed seat is connected to the outer wall of the annular plate, and the blocking assembly includes an L-shaped plate slidably connected to the fixed seat. The horizontal portion of the L-shaped plate corresponds to the vertical portion. The L-shaped plate and the fixed seat are connected by a spring, and the L-shaped plate is connected to a horizontal driving device.

[0012] Preferably, the top of the platform is connected to a telescopic cylinder located on one side of the rotating disk, the output end of the telescopic cylinder is connected to a trigger rod, the side wall of the telescopic cylinder is connected to a guide frame, an inclined block is slidably connected on the guide frame, one side of the inclined block and the bottom of the trigger rod are provided with mutually cooperating inclined surfaces, a pull tube is connected between the guide frame and the fixed seat, an inner core is slidably connected inside the pull tube, and the two ends of the inner core are respectively connected to the inclined block and the L-shaped plate.

[0013] Preferably, the sealing and positioning assembly includes a positioning block slidably connected to the tray frame, the positioning block being positioned towards the crystal tray, a second sliding groove being provided at the bottom of the positioning block, a positioning ring frame being slidably connected up and down inside the tray frame, a sliding pin being slidably connected to the top of the positioning ring frame in the second sliding groove, the positioning ring frame and the tray frame being connected by a spring, and an external driving device being connected to the positioning ring frame.

[0014] Preferably, the rotating disk has a cavity corresponding to the tray frame inside, and a positioning push rod is slidably connected in the cavity. One end of the positioning push rod extends out of the cavity, and the other end extends into the tray frame. There are mutually cooperating inclined surfaces between the positioning push rod and the positioning ring frame. The positioning push rod drives the positioning ring frame to move downward through the inclined surfaces. The positioning push rod and the cavity are connected by a spring. The pressing component squeezes the positioning push rod to move it.

[0015] Preferably, the pressing component includes a vertically arranged positioning lifting rod, which is connected to the extension rod of the hot-pressing structure. The outer wall of the positioning lifting rod is provided with an upper receiving part and a protrusion. The end of the positioning push rod near the positioning lifting rod is provided with a corresponding inclined surface.

[0016] Preferably, the lifting assembly includes a housing located below the hot press head, a top block is slidably connected inside the housing, the top block and the housing are connected by a spring, a first hydraulic cylinder is installed between the housing and the top block, and the first hydraulic cylinder is externally connected to an oil supply device.

[0017] Preferably, an adjusting plate is installed on one side of the positioning lifting rod, and an adjusting bolt is installed on the adjusting plate. A second hydraulic cylinder located below the adjusting bolt is connected to one side of the hot-pressing structure. The second hydraulic cylinder and the first hydraulic cylinder are connected through an oil supply line.

[0018] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages: 1. This invention, through the coordinated arrangement of a rotating disk, guiding components, and clamping components, achieves automatic positioning and clamping of the crystal tray throughout the entire process of transfer and filling, improving production quality and efficiency. When the rotating disk rotates, the extension rod moves along the guide groove and drives the clamping support rod to move up and down, thereby causing the clamping block to automatically clamp or release the crystal tray. This ensures that the crystal tray maintains a precise position during transfer between the filling, sealing, and heat-sealing stations, preventing filling deviations or sealing misalignments caused by displacement, and improving the quality of heat sealing.

[0019] 2. This invention achieves precise alignment of the sealing film before heat sealing through the coordinated operation of the pressing component, sealing film positioning component, and lifting component in the hot pressing structure. At the same time, the positioning block automatically retracts to avoid interference with the hot pressing head.

[0020] 3. By setting up a blocking component and a telescopic cylinder structure in combination, the present invention realizes automatic control of the crystal tray placement and clamping action. When the tray is placed in the filling position, the telescopic cylinder performs a liquid filling retraction action, and the L-shaped plate is moved through the pull tube and inner core to release the obstruction of the extension rod. The extension rod then rises along the vertical part and the clamping block automatically clamps the tray, improving the efficiency of automatic clamping.

[0021] 4. During the hot pressing process, the top block supports the bottom of the rotating disk, offsetting the impact load generated by the downward pressure of the hot pressing head, protecting the drive components from long-term pressure damage, and improving the overall stability and service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the frame and control display structure in this invention; Figure 2 This is a schematic diagram of the frame and rotating disk structure in this invention; Figure 3 This is a schematic diagram of the rotating disk and tray frame structure in this invention; Figure 4 This is a schematic diagram of the hot-pressing structure and the rotating disk structure in this invention; Figure 5 This is a schematic diagram of the rotating disk and telescopic cylinder structure in this invention; Figure 6 This is a schematic diagram of the annular plate and guide groove structure in this invention; Figure 7 This is a schematic diagram of the guide tube and clamping block structure in this invention; Figure 8 This is a schematic diagram of the hot-pressing structure and the positioning lifting rod structure in this invention; Figure 9 This is a schematic diagram illustrating the use of the present invention.

[0023] Figure label: 101. Frame; 102. Control and display structure; 103. Liquid supply structure; 104. Handling structure; 105. Hot pressing structure; 106. Drive assembly; 107. Rotary disc; 108. Pallet holder; 109. Sealing film; 110. Hopper; 201. Guide tube; 202. Clamping block; 203. First sluice; 204. Clamping support rod; 205. Annular plate; 206. Guide groove; 207. Extension rod; 208. Clamping part; 209. Releasing part; 210. Reversing part; 211. Vertical part ; 301, Fixed base; 302, L-shaped plate; 303, Telescopic cylinder; 304, Trigger rod; 305, Guide frame; 306, Inclined block; 307, Pull cable tube; 308, Inner core; 401, Positioning block; 402, Second slide groove; 403, Positioning ring frame; 404, Positioning push rod; 405, Positioning lifting rod; 406, Upper receiving part; 407, Protrusion; 501, Housing; 502, Top block; 503, First hydraulic cylinder; 504, Adjusting plate; 505, Adjusting bolt; 506, Second hydraulic cylinder. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] The conventional components and key load-bearing components in this case are selected in accordance with standards in terms of material selection, heat treatment process and structural dimensions to ensure that they have sufficient strength, stiffness and fatigue resistance under rated load and expected working conditions. These are all conventional design considerations well known to those skilled in the art.

[0026] Depend on Figures 1 to 9The device includes a frame 101 with a platform on top. The main equipment structure is located on the platform. Above the platform are a control and display structure 102, a liquid supply structure 103, a transport structure 104, and a hot-pressing structure 105. The control and display structure 102 is used for controlling and displaying the equipment and has a display screen. The liquid supply structure 103 is connected to a liquid tank via a liquid supply hose to add liquid to the crystal tray. The transport structure 104, also known as a vacuum transport module, consists of a linear slide, cylinder, and suction nozzle, and moves axially to transport the sealing film 109 or the heat-sealed crystal tray. The hot-pressing structure 105 heat-seals the sealing film 109 onto the crystal tray. The control and display structure 102, liquid supply structure 103, transport structure 104, and hot-pressing structure 105 are existing mature devices and will not be described in detail here. All components are covered with metal protective plates for easy cleaning and aesthetic purposes. The frame 101 houses a sealing film feeding structure for conveying sealing film sheets 109. This structure consists of multiple vertically arranged guide rods and vertically moving top rods. The sealing film sheets 109 to be used are stacked between the guide rods. The conveying structure 104 sequentially sucks away the sealing film sheets 109 needed at the top, and the top rods gradually convey the material upwards. This is a mature existing structure and will not be described in detail here. A drive assembly 106, a geared motor structure, is installed on the top of the platform to drive the rotating disk 107 to rotate. The rotating disk 107 is mounted on the top of the drive assembly 106, and a circumferentially distributed tray rack 108 is mounted on the top of the rotating disk 107. The tray rack 108 has an internal groove for placing crystal trays; the groove is larger than the crystal tray to facilitate placement. Four tray racks 108 are arranged counter-clockwise from the position of the control display structure 102 as a filling position, a sealing film placement position, a heat-sealing position, and a discharging position.

[0027] The specific steps are as follows: The feeder places the crystal tray in the groove of the tray frame 108. This position is the filling position. The liquid supply structure 103 is activated, and the liquid is filled into the crystal tray through the liquid supply pipe.

[0028] Subsequently, the drive assembly 106 drives the rotating disk 107 to rotate, and the crystal tray moves to the sealing film placement position.

[0029] The transport structure 104 moves to place the sealing film 109 on the crystal tray, and then continues to rotate to the heat sealing position.

[0030] The heat-sealing head on the hot-pressing structure 105 presses down to heat-seal the sealing film 109 and the crystal tray together.

[0031] The rotary disk 107 continues to rotate to the unloading position, and the conveying structure 104 uses vacuum to suck away the heat-sealed crystal tray and place it in the unloading hopper 110.

[0032] The tray frame 108 is internally equipped with a clamping assembly and a sealing film positioning assembly. Since the tray frame 108 has a groove larger than the crystal tray, the clamping assembly fixes the crystal tray within the groove, thus providing positioning. The sealing film positioning assembly positions the sealing film 109, ensuring that the crystal tray and the sealing film 109 correspond in position. Below the rotating disk 107 is a guide assembly that drives the clamping assembly, enabling it to operate according to different positions. A lifting assembly is provided at the bottom of the rotating disk 107 near the hot pressing structure 105. The lifting assembly supports the rotating disk 107 from the bottom, preventing the stability of the rotating disk 107 from being affected after prolonged use under the pressure of the hot pressing structure 105. A pressing assembly is provided on the hot pressing structure 105, which drives the sealing film positioning assembly and the lifting assembly to operate.

[0033] The crystal tray located within the tray frame 108 needs to be positioned and clamped to prevent displacement during liquid addition and heat sealing, thereby improving the uniformity and quality of the finished product. The following provides a structure for clamping and positioning the crystal tray: Specifically, the tray frame 108 has guide tubes 201 located on both sides of a groove. The guide tubes 201 are located inside the hollow tray frame 108 and communicate with the groove. The clamping assembly includes a clamping block 202 slidably connected within the guide tube 201. The clamping block 202 moves within the guide tube 201 and can extend into the groove to clamp the crystal tray. The crystal tray has concave portions on both sides for easy gripping with the thumb and forefinger. The clamping block 202 is positioned corresponding to these concave portions, clamping the crystal tray by extending into and contacting them. In one embodiment, a rubber pad is provided at the end of the clamping block 202 to enhance the clamping force. The clamping block 202 has an inclined first groove 203 on one side. Below the clamping block 202 is a clamping support rod 204 that moves vertically. The top of the clamping support rod 204 is connected to a sliding pin located within the first groove 203. When the clamping support rod 204 moves upward, the sliding pin in the first groove 203 causes the symmetrical clamping blocks 202 to move towards the crystal tray, thus achieving a clamping effect. The bottom of the clamping support rod 204 is connected to a lifting drive device to control its vertical movement. The crystal tray is placed in the tray frame 108, and the clamping block 202 clamps it. When it reaches the unloading position, the clamping is released, allowing the transport structure 104 to suck up the heat-sealed crystal tray.

[0034] Since the rotating disk 107 is always rotating in one direction, it is not convenient to install a lifting device for electrically driven clamping support rod 204 inside it. At the same time, the clamping support rod 204 needs different actions at different positions to facilitate clamping and releasing. The following provides a structure that drives the clamping support rod 204 to move up and down during rotation: Specifically, the guide assembly includes an annular plate 205 connected to the top of the platform. In one embodiment, an annular groove is formed at the bottom of the outer wall of the rotating disk 107, and the annular plate 205 is located within the annular groove. A through guide groove 206 is formed inside the annular plate 205. An extension rod 207 is connected to the bottom of the clamping support rod 204. One end of the extension rod 207 extends out of the rotating disk 107 and is located within the guide groove 206. A slot is formed on the side wall of the rotating disk 107 to allow the extension rod 207 to move up and down, avoiding any impact on the up and down movement of the extension rod 207. Because the guide groove 206 penetrates the annular plate 205, the annular plate 205 is divided into upper and lower halves, which are connected by a connector located on the outer circumference of the annular plate 205. The connector has an indentation on the side near the guide groove 206 to avoid contact with the extension rod 207, thus preventing contact with the moving extension rod 207. The clamping support rod 204 and the tray frame 108 are connected by a compression spring, ensuring that the initial position of the clamping support rod 204 is at the top.

[0035] The guide groove 206 includes a clamping part 208, a releasing part 209, a reversing part 210, and a vertical part 211. (Reference) Figure 6 , Figure 6 This is a planar unfolded view of the annular plate 205. When the extension rod 207 moves to the clamping part 208, the clamping support rod 204 moves upward, causing the clamping block 202 to extend and clamp the crystal tray. The length of the clamping part 208 extends from the filling position to the heat sealing position, so that the clamping block 202 is in a clamping state from the filling position to the heat sealing position. When the extension rod 207 moves to the release part 209, the extension rod 207 will move downward, the bottom spring will be compressed, the clamping block 202 will release its grip on the crystal tray, and the position of the release part 209 will extend from the unloading position to the filling position. The reversing part 210 is located between the heat sealing position and the unloading position, so that after heat sealing, the extension rod 207 can move downward, thereby releasing the clamping of the crystal tray. When the extension rod 207 moves from the release part 209 to the vertical part 211, it will be located at the bottom of the vertical part 211. The clamping support rod 204 will move upward under the action of the spring, thus moving to the position of the clamping part 208. A blocking component is provided at the vertical part 211 of the guide groove 206 to block the upwardly moving extension rod 207. Even if the tray frame 108 moves to the filling position, the clamping block 202 still needs to be in the open state because no crystal tray is placed. When the crystal tray is placed, the blocking component is activated, and the extension rod 207 is no longer blocked. At this time, the extension rod 207 moves from the bottom to the top of the vertical part 211, and the clamping block 202 clamps the crystal tray.

[0036] The tray rack 108 located at the filling position requires the crystal tray to be placed before clamping to avoid affecting the placement of the crystal tray during pre-clamping. The following provides a structure for blocking the extension rod 207: Specifically, a fixed seat 301 is connected to the outer wall of the annular plate 205. The blocking assembly includes an L-shaped plate 302 slidably connected to the fixed seat 301. The horizontal portion of the L-shaped plate 302 corresponds to the vertical portion 211. When the L-shaped plate 302 moves towards the fixed seat 301, the horizontal portion will be misaligned with the vertical portion 211, allowing the extension rod 207 to move upward. The L-shaped plate 302 and the fixed seat 301 are connected by a spring, ensuring that the initial position of the L-shaped plate 302 always blocks the vertical portion 211. The L-shaped plate 302 is connected to a horizontal drive device, which controls the movement of the L-shaped plate 302, thereby controlling the passage of the extension rod 207.

[0037] Setting up a horizontal drive device requires a detection structure to monitor the placement of the crystal tray, which not only increases the control difficulty but also makes the detection structure susceptible to environmental influences. The following provides a structure for automatically pulling the L-shaped plate 302: Specifically, a telescopic cylinder 303 is connected to the top of the platform, located on one side of the rotating disk 107. A liquid supply support plate is installed at the output end of the telescopic cylinder 303, and a vertical liquid supply metal pipe is installed on one side of the liquid supply support plate. The liquid supply metal pipe is connected to the liquid supply structure via a flexible hose. During liquid filling, the telescopic cylinder 303 retracts, and the liquid supply support plate drives the liquid supply metal pipe to insert into the crystal tray, thereby performing the filling operation. A trigger rod 304 is connected to the output end of the telescopic cylinder 303, and the trigger rod 304 is vertically positioned. A guide frame 305 is connected to the side wall of the telescopic cylinder 303, and an inclined block 306 is slidably connected to the guide frame 305. The inclined block 306 and the guide frame 305 are connected by a spring. One side of the inclined block 306 and the bottom of the trigger rod 304 are provided with mutually cooperating inclined surfaces. When the output end of the telescopic cylinder 303 retracts, it will drive the trigger rod 304 to move downward. Through the contact of the inclined surfaces, the trigger rod 304 and the inclined block 306 move the inclined block 306 away from the guide frame 305, and the spring on the guide frame 305 is compressed. After the inclined block 306 is driven to move, it cannot continue to move due to the limited width of the trigger rod 304. A pull cable tube 307 is connected between the guide frame 305 and the fixed base 301. An inner core 308 is slidably connected inside the pull cable tube 307, and the inner core 308 moves inside the pull cable tube 307. The two ends of the inner core 308 are connected to the inclined block 306 and the L-shaped plate 302, respectively. When the inclined block 306 moves, it pulls the inner core 308 to move within the pull tube 307. The inner core 308 exerts a pulling force on the L-shaped plate 302, thereby causing the L-shaped plate 302 to move. The combination of the inner core 308 and the pull tube 307 is called a Bowden cable. A Bowden cable is a mechanical transmission cable composed of an inner steel wire core and a flexible outer sheath. It is used to transmit tensile or thrust forces over long distances in a non-linear manner and is commonly used in bicycle brake structures. This is an existing and mature structure, and will not be described in detail here.

[0038] When the handling structure 104 picks up, transports, and places the sealing film 109, the sealing film 109 may shift, affecting the quality of heat sealing. The following provides a structure for positioning the sealing film 109: Specifically, the sealing film positioning assembly includes a positioning block 401 slidably connected within the tray frame 108. The top of the crystal end cap has multiple protruding structures, also referred to as "protrusions" or "protruding sealing parts," which is a common and effective heat sealing design and will not be elaborated further here. The height of the positioning block 401 is higher than the crystal tray and partially overlaps with the protruding structures. When the sealing film 109 is placed, the protruding structures provide support. When the positioning block 401 moves towards the sealing film 109, it positions the sealing film 109 without contacting the crystal tray. In one embodiment, the positioning block 401 has a downward-facing inclined surface on the side facing the sealing film 109, so that it contacts the sealing film 109 first while avoiding contact with the crystal tray during movement. The positioning block 401 is positioned facing the crystal tray. A second sliding groove 402 is provided at the bottom of the positioning block 401. A positioning ring frame 403 is slidably connected vertically inside the tray frame 108. A sliding pin is slidably connected to the top of the positioning ring frame 403 within the second sliding groove 402. When the positioning ring frame 403 moves downwards, the sliding pin within the second sliding groove 402 causes multiple positioning blocks 401 to move towards the sealing film 109, thereby positioning the sealing film 109 and maintaining the corresponding positions of the crystal tray and the sealing film 109. The positioning ring frame 403 and the tray frame 108 are connected by a spring. When not under driving force, the positioning block 401 is in an open state. An external driving device is connected to the positioning ring frame 403 to facilitate its vertical movement.

[0039] When the sealing film 109 is in the sealing placement position, it is placed above the crystal tray. When rotating from the sealing placement position to the heat sealing position, the sealing film 109 will experience varying degrees of displacement due to inertia, affecting the heat sealing effect. The following provides a structure where the positioning ring 403 moves downwards when it reaches the heat sealing position: Specifically, the rotating disk 107 has a cavity corresponding to the tray frame 108 inside, and a positioning push rod 404 is slidably connected within the cavity, allowing the positioning push rod 404 to move horizontally. One end of the positioning push rod 404 extends out of the cavity, and the other end extends into the tray frame 108. A cooperating inclined surface is provided between the positioning push rod 404 and the positioning ring frame 403. The positioning push rod 404 drives the positioning ring frame 403 to move downwards via the inclined surface. When the positioning push rod 404 is pressed from the outside, it enters the tray frame 108, and through its cooperation with the inclined surface of the positioning ring frame 403, it causes the positioning ring frame 403 to move downwards. The positioning push rod 404 and the cavity are connected by a spring, so that the initial position of the positioning push rod 404 is outwardly extended, at which time the positioning ring frame 403 is above, and the positioning block 401 is in the open state. The pressing component squeezes the positioning push rod 404 to move. When it moves to the heat-sealing position, the pressing component drives the positioning push rod 404 to actuate.

[0040] Since the heat-sealing position requires a heat-sealing action, the continuously extending positioning block 401 will affect the hot-pressing head and easily cause damage to the equipment. The following provides a structure where the positioning block 401 extends and then retracts: Specifically, the pressing assembly includes a vertically arranged positioning lifting rod 405, which is connected to the extension rod of the hot-pressing structure 105. The extension end of the hot-pressing structure 105 simultaneously drives the hot-pressing head and the positioning lifting rod 405 to move. The outer wall of the positioning lifting rod 405 has an upper receiving portion 406 and a protrusion 407. The bottom of the protrusion 407 has a slope, and the end of the positioning push rod 404 near the positioning lifting rod 405 has a corresponding slope. When the positioning lifting rod 405 moves downward, the bottom inclined surface will press the positioning push rod 404 into the cavity, thereby causing the positioning block 401 to extend and position the sealing film 109. As the positioning lifting rod 405 continues to move downward, the upper receiving part 406 of the positioning lifting rod 405 will correspond to the positioning push rod 404. After the positioning push rod 404 loses the pressure of the protrusion 407, it will extend out of the cavity. At this time, the positioning block 401 retracts into the tray frame 108 to avoid contact with the pressing head.

[0041] The downward pressure of the hot press head acts on the drive assembly 106 through the rotating disk 107, which can affect the stability of the drive assembly 106 after prolonged use. The following provides a structure for supporting the rotating disk 107 from the bottom: Specifically, the lifting assembly includes a housing 501 located below the hot press head. A top block 502 is slidably connected inside the housing 501. When the top block 502 moves upward, it contacts the bottom of the rotating disk 107. The top block 502 and the housing 501 are connected by a spring, so that the initial position of the top block 502 is at the bottom, and it only contacts the rotating disk 107 when pushed upward. A first hydraulic cylinder 503 is installed between the housing 501 and the top block 502. The first hydraulic cylinder 503 is externally connected to an oil supply device. The oil supply device supplies oil to the first hydraulic cylinder 503, and the extended end of the first hydraulic cylinder 503 drives the top block 502 to move upward.

[0042] The hydraulic supply device requires frequent starts to drive the first hydraulic cylinder 503, necessitating a complex and cumbersome detection structure. The following provides a structure that facilitates the operation of the first hydraulic cylinder 503: Specifically, an adjusting plate 504 is mounted on one side of the positioning lifting rod 405, and an adjusting bolt 505 is mounted on the adjusting plate 504. The extension length of the adjusting bolt 505 is adjustable. A second hydraulic cylinder 506 located below the adjusting bolt 505 is connected to one side of the hot-pressing structure 105. The second hydraulic cylinder 506 and the first hydraulic cylinder 503 are connected via an oil supply line. The positioning lifting rod 405, through the adjusting plate 504, moves the adjusting bolt 505 downwards, thereby pressing the extended end of the second hydraulic cylinder 506 into its cylinder body. The hydraulic oil in the second hydraulic cylinder 506 enters the first hydraulic cylinder 503 through the oil supply line, causing the extended end of the first hydraulic cylinder 503 to move upwards. When the positioning lifting rod 405 moves upward, the top block 502 retracts into the housing 501 under the action of the spring inside the housing 501, thus achieving a reset function. In one embodiment, the second hydraulic cylinder 506 is provided with a spring structure inside, so that the initial position of the second hydraulic cylinder 506 is the extended state.

[0043] The extension amount of the output end of the first hydraulic cylinder 503 is controlled by adjusting the extension length of the adjusting bolt 505. In one embodiment, the top block 502 is provided with a spring or rubber pad structure to improve stability during support.

[0044] The steps for using this invention are as follows: Step 1: The feeding machine places the crystal tray into the groove of the tray frame 108. This position is the filling position. The extended end of the telescopic cylinder 303 retracts. When retracted, the L-shaped plate 302 loses its restraining effect on the extension rod 207, causing the clamping support rod 204 to move upward. At this time, the clamping block 202 extends to clamp and position the crystal tray. The liquid supply structure 103 above is activated, filling the crystal tray with liquid through the liquid supply pipe.

[0045] Step 2: The drive assembly 106 drives the rotating disk 107 to rotate, moving the crystal tray to the sealing film placement position. The transport structure 104 then moves to place the sealing film 109 onto the crystal tray, and then continues to rotate to the heat sealing position.

[0046] Step 3: The heat-sealing head on the hot-pressing structure 105 moves downward, causing the lifting component and the sealing film positioning component to operate through the pressing component, so that the position of the sealing film 109 corresponds to the crystal tray. Then the sealing film positioning component retracts. The heat-pressing head heat-seales the sealing film 109 and the crystal tray together, and then retracts upward.

[0047] Step 4: The rotary disk 107 continues to rotate to the unloading position, and the conveying structure 104 uses vacuum to suck away the heat-sealed crystal tray and place it in the unloading hopper 110.

[0048] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An automatic filling and sealing machine, comprising a frame (101), a table being provided on the top of the frame (101), a control and display structure (102), a liquid supply structure (103), a conveying structure (104), and a hot pressing structure (105) being installed above the table, a sealing film feeding structure for conveying sealing film sheets (109) being installed inside the frame (101), a drive assembly (106) being installed on the top of the table, and a rotating disk (107) being installed on the top of the drive assembly (106), characterized in that: The top of the rotating disk (107) is equipped with a circumferentially distributed tray frame (108). The inside of the tray frame (108) is provided with a groove for placing a crystal tray. The inside of the tray frame (108) is provided with a clamping component and a sealing film positioning component. The clamping component fixes the crystal tray in the groove, and the sealing film positioning component positions the sealing film (109). The bottom of the rotating disk (107) is provided with a guide component to drive the clamping component to move. A lifting component is provided on the bottom side of the rotating disk (107) near the hot pressing structure (105). The lifting component supports the rotating disk (107) from the bottom. A pressing component is provided on the hot pressing structure (105). The pressing component drives the sealing film positioning component and the lifting component to perform actions.

2. The automatic filling and sealing machine according to claim 1, characterized in that: The tray frame (108) is provided with guide tubes (201) located on both sides of the groove. The clamping assembly includes a clamping block (202) slidably connected in the guide tube (201). A first inclined groove (203) is provided on one side of the clamping block (202). A clamping support rod (204) that moves up and down is provided below the clamping block (202). A sliding pin is connected to the top of the clamping support rod (204) located in the first groove (203). The bottom of the clamping support rod (204) is connected to the lifting drive device.

3. The automatic filling and sealing machine according to claim 2, characterized in that: The guide assembly includes an annular plate (205) connected to the top of the tabletop. The annular plate (205) has a through guide groove (206) inside. The bottom of the clamping support rod (204) is connected to an extension rod (207). One end of the extension rod (207) is located in the guide groove (206). The clamping support rod (204) and the tray frame (108) are connected by a spring. The guide groove (206) includes a clamping part (208), a releasing part (209), a reversing part (210), and a vertical part (211). A blocking assembly is provided at the vertical part (211) of the guide groove (206).

4. The automatic filling and sealing machine according to claim 3, characterized in that: A fixed seat (301) is connected to the outer wall of the annular plate (205). The blocking assembly includes an L-shaped plate (302) slidably connected to the fixed seat (301). The horizontal part of the L-shaped plate (302) corresponds to the vertical part (211). The L-shaped plate (302) and the fixed seat (301) are connected by a spring. The L-shaped plate (302) is connected to a horizontal driving device.

5. The automatic filling and sealing machine according to claim 1, characterized in that: The top of the platform is connected to a telescopic cylinder (303) located on one side of the rotating disk (107). The output end of the telescopic cylinder (303) is connected to a trigger rod (304). The side wall of the telescopic cylinder (303) is connected to a guide frame (305). An inclined block (306) is slidably connected on the guide frame (305). One side of the inclined block (306) and the bottom of the trigger rod (304) are provided with mutually cooperating inclined surfaces. A pull tube (307) is connected between the guide frame (305) and the fixed seat (301). An inner core (308) is slidably connected inside the pull tube (307). The two ends of the inner core (308) are respectively connected to the inclined block (306) and the L-shaped plate (302).

6. The automatic filling and sealing machine according to claim 5, characterized in that: The sealing and positioning assembly includes a positioning block (401) slidably connected to the tray frame (108), the positioning block (401) facing the crystal tray, the bottom of the positioning block (401) is provided with a second slide groove (402), the inside of the tray frame (108) is slidably connected to a positioning ring frame (403), the top of the positioning ring frame (403) is connected to a sliding pin slidably connected to the second slide groove (402), the positioning ring frame (403) and the tray frame (108) are connected by a spring, and the positioning ring frame (403) is externally connected to a driving device.

7. The automatic filling and sealing machine according to claim 6, characterized in that: The rotating disk (107) has a cavity corresponding to the tray frame (108) inside. A positioning push rod (404) is slidably connected in the cavity. One end of the positioning push rod (404) extends out of the cavity, and the other end of the positioning push rod (404) extends into the tray frame (108). There are mutually cooperating inclined surfaces between the positioning push rod (404) and the positioning ring frame (403). The positioning push rod (404) drives the positioning ring frame (403) to move downward through the inclined surface. The positioning push rod (404) and the cavity are connected by a spring. The pressing component squeezes the positioning push rod (404) to move.

8. The automatic filling and sealing machine according to claim 7, characterized in that: The pressing assembly includes a vertically arranged positioning lifting rod (405), which is connected to the extension rod of the hot pressing structure (105). The outer wall of the positioning lifting rod (405) is provided with an upper receiving part (406) and a protrusion (407). The positioning push rod (404) has a corresponding inclined surface at one end near the positioning lifting rod (405).

9. The automatic filling and sealing machine according to claim 8, characterized in that: The lifting assembly includes a housing (501) located below the hot press head. A top block (502) is slidably connected inside the housing (501). The top block (502) and the housing (501) are connected by a spring. A first hydraulic cylinder (503) is installed between the housing (501) and the top block (502). The first hydraulic cylinder (503) is externally connected to an oil supply device.

10. The automatic filling and sealing machine according to claim 9, characterized in that: An adjusting plate (504) is installed on one side of the positioning lifting rod (405), and an adjusting bolt (505) is installed on the adjusting plate (504). A second hydraulic cylinder (506) located below the adjusting bolt (505) is connected to one side of the hot pressing structure (105). The second hydraulic cylinder (506) and the first hydraulic cylinder (503) are connected through an oil supply line.

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