An automatic wrapping machine

Abstract

This invention discloses an automatic wrapping machine. As an automatic wrapping machine, it includes a frame, on which a feeding mechanism, a film feeding mechanism, and a heat-shrinking mechanism are mounted. The feeding mechanism includes a support plate, which is fixedly mounted on the frame. A first hydraulic cylinder is located on one side of the support plate, and the cylinder barrel of the first hydraulic cylinder is fixedly connected to the support plate. A top plate is fixedly mounted on one end of the piston rod of the support plate. The feeding mechanism and the film feeding mechanism cooperate to form a one-box-one-film combination, quickly wrapping the film material. Heat shrinking is then completed by the heat-shrinking mechanism, resulting in a high degree of automation and high efficiency. The PVC film material first slowly passes through a low-temperature space to complete preliminary shrinkage and determine the initial shape, and then quickly passes through a high-temperature space to complete the final shrinkage. This ensures that the reagents in the kit are not exposed to high temperatures for extended periods, and that the yield of the kit does not decrease due to the heat-shrink wrapping process.

Description

Technical Field

[0001] This invention belongs to the field of packaging and wrapping technology, and specifically relates to an automatic wrapping machine. Background Technology

[0002] A reagent kit is a box used to hold chemical reagents for detecting chemical components, drug residues, virus types, etc. It is commonly used in hospitals and pharmaceutical companies.

[0003] Heat shrink film is a thin film that shrinks when heated, thus tightly wrapping around the product.

[0004] In the final stages of reagent kit production, coating is required. Heat shrink coating is highly efficient and produces aesthetically pleasing finished products. However, some reagents within the kit cannot be continuously exposed to high temperatures. To enable heat shrink coating, the kit is often made very large and thick to prevent heat from being transferred to the reagents inside, which could cause them to lose their activity. While this method has some effect, it does not fundamentally solve the problem. The consequences include increased production costs, increased space usage, increased finished product weight, and increased transportation costs. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the existing technology, the present invention aims to provide an automatic wrapping machine.

[0006] The technical solution adopted in this invention is as follows:

[0007] An automatic wrapping machine includes a frame, on which a feeding mechanism, a film feeding mechanism, and a heat shrinking mechanism are mounted. The feeding mechanism includes a support plate fixedly mounted on the frame. A first hydraulic cylinder is mounted on one side of the support plate, and the cylinder barrel of the first hydraulic cylinder is fixedly connected to the support plate. A top plate is fixedly mounted on one end of the piston rod of the support plate. The film feeding mechanism includes a sliding rod slidably mounted on the frame. A second hydraulic cylinder is mounted on the sliding rod, and the piston rod of the second hydraulic cylinder is fixedly connected to the sliding rod. A semi-frame is fixedly mounted on one end of the cylinder barrel of the second hydraulic cylinder, and multiple suction cups are fixedly mounted on the side of the semi-frame away from the sliding rod. The heat shrinking mechanism includes a heating chamber fixedly connected to the frame. A microwave generator is fixedly mounted on the side of the heating chamber away from the film feeding mechanism.

[0008] As a preferred embodiment of the present invention, the feeding mechanism further includes a mounting plate, which is fixedly mounted on the frame. A third hydraulic cylinder is provided on one side of the mounting plate, and the cylinder barrel of the third hydraulic cylinder is fixedly connected to the mounting plate. A cylinder is provided at one end of the piston rod of the third hydraulic cylinder, and a support plate is controlled on both sides of the cylinder. A push plate is fixedly provided on the side of the cylinder away from the mounting plate.

[0009] As a preferred embodiment of the present invention, the film feeding mechanism further includes a slide rail, a slider is slidably mounted on the side of the slide rail near the frame, the slider is fixedly connected to the slide rod, a column is fixedly mounted on one end of the slide rail, and the end of the column away from the slide rail is fixedly connected to the frame; a control motor is fixedly mounted on one side of the slide rod, a transmission gear is fixedly mounted on the output shaft of the control motor, a drive gear is mounted on one side of the transmission gear, the drive gear meshes with the transmission gear, the drive gear is rotatably mounted on a connecting plate, and the connecting plate is fixedly connected to the slide rod; a rack is provided inside the slide rail, and the drive gear meshes with the rack.

[0010] As a preferred embodiment of the present invention, it further includes a first conveyor belt, a second conveyor belt, a third conveyor belt, a fourth conveyor belt, and a fifth conveyor belt, all located at the same horizontal level. The first, second, third, fourth, and fifth conveyor belts are respectively mounted on the frame and individually controlled by multiple servo motors, which are respectively fixedly mounted on the frame. The first conveyor belt is connected to the top plate, the third conveyor belt is located on one side of the first conveyor belt and is opposite to the conveying direction of the first conveyor belt, the second conveyor belt is located at one end of the first conveyor belt and forms a 90-degree angle with the conveying direction of the first conveyor belt, and the end of the second conveyor belt away from the first conveyor belt is connected to the third conveyor belt.

[0011] As a preferred embodiment of the present invention, the fourth conveyor belt and the fifth conveyor belt are located on the side of the first conveyor belt away from the third conveyor belt, the fourth conveyor belt and the fifth conveyor belt are connected end to end and their conveying directions are the same; the half frame moves along the length of the slide rail following the sliding rod, and the two ends of the movement trajectory of the half frame correspond to the ends of the fifth conveyor belt and the first conveyor belt away from the heating box, respectively.

[0012] As a preferred embodiment of the present invention, the heat shrinking mechanism further includes a heat dissipation box, which is located on the side of the heating box away from the mounting plate. The heating box has two openings on both the side away from the heat dissipation box and the side closer to the heat dissipation box. Each of the four openings has a shielding door, which is hinged to the side wall of the heating box via a torsion spring. The heating box has a baffle plate inside, forming two separate spaces: a low-temperature space and a high-temperature space. The space closer to the microwave generator is the high-temperature space, which is connected to the third conveyor belt. The low-temperature space is connected to the first conveyor belt. Each end of the high-temperature space and each end of the low-temperature space corresponds to a shielding door. The heat dissipation box has a grid on the side away from the frame, and both ends of the heat dissipation box are connected to the high-temperature space and the low-temperature space, respectively.

[0013] As a preferred embodiment of the present invention, the second conveyor belt has a hollow structure, and a cooling fan is provided on the side of the second conveyor belt away from the heat dissipation box. The cooling fan is fixedly mounted on the load-bearing plate, and the load-bearing plate is fixedly connected to the frame.

[0014] As a preferred embodiment of the present invention, the film feeding mechanism further includes a gantry frame, which is fixedly connected to the machine frame. A hanging plate is fixedly provided on the side of the gantry frame near the machine frame, and the end of the slide rail away from the column is fixedly connected to the hanging plate. A fourth hydraulic cylinder and a fourth hydraulic cylinder are respectively located on both sides of the gantry frame on the hanging plate. The cylinder barrel of the fourth hydraulic cylinder is fixedly connected to the hanging plate. A front pressure roller box is fixedly provided at one end of the piston rod of the fourth hydraulic cylinder. Multiple front pressure rollers are rotatably arranged in the front pressure roller box. The cylinder barrel of the fifth hydraulic cylinder is fixedly connected to the hanging plate. A rear pressure roller box is fixedly provided at one end of the piston rod of the fifth hydraulic cylinder. Multiple rear pressure rollers are rotatably arranged in the rear pressure roller box.

[0015] As a preferred embodiment of the present invention, a mounting plate is provided between the front pressure roller box and the rear pressure roller box, the mounting plate is fixedly connected to the hanging plate, a sixth hydraulic cylinder is provided on one side of the mounting plate, the cylinder barrel of the sixth hydraulic cylinder is fixedly connected to the mounting plate, a knife holder is fixedly provided at one end of the piston rod of the mounting plate, a cold knife and a hot knife are fixedly provided at the end of the knife holder away from the mounting plate, the knife holder is located at the connection of the fourth conveyor belt and the fifth conveyor belt, and a collection box is fixedly provided on the side of the frame away from the knife holder.

[0016] As a preferred embodiment of the present invention, a connecting rod is fixedly provided on one side of the sliding rod, a fixing plate is fixedly provided on the connecting rod, a seventh hydraulic cylinder is provided on the fixing plate, the cylinder barrel of the seventh hydraulic cylinder is fixedly connected to the fixing plate, and a sealing knife is fixedly provided at one end of the piston rod of the fixing plate.

[0017] The beneficial effects of this invention are as follows: As an automatic wrapping machine, the feeding mechanism and the film feeding mechanism work together to form a one-box-one-film combination, quickly wrapping the film material and completing the heat shrinking through the heat shrinking mechanism. This results in a high degree of automation and efficiency. The film feeding mechanism is located away from the microwave generator of the heat shrinking mechanism, preventing external interference that could cause deformation of the film material before it is wrapped onto the reagent kit. After the reagent kit enters the film material, the support plate can open the open side of the film material, facilitating a smooth, even, and aesthetically pleasing heat-sealing mark during the secondary sealing process. During production, the PVC film material first passes slowly through a low-temperature space to complete initial shrinkage and determine its preliminary shape, and then quickly passes through a high-temperature space to complete the final shrinkage. This ensures that the reagents inside the reagent kit are not exposed to high temperatures for extended periods, ensuring that the yield of the reagent kit does not decrease due to the heat shrink wrapping process. The reagent kit passes through the heating chamber twice, a unique partial heat shrinking method that still produces aesthetically pleasing finished reagent kits, but reduces the reagent kit's high-temperature resistance requirements. This achieves cost savings in terms of reagent material, size, and thickness, while also reducing storage and transportation costs. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is the present invention. Figure 1 A top-view structural diagram;

[0021] Figure 3 This is the present invention. Figure 1 Front view structural diagram;

[0022] Figure 4 This is the present invention. Figure 1 A schematic diagram of the left-side view structure;

[0023] Figure 5 This is the present invention. Figure 1 A schematic diagram of a portion of the film feeding mechanism;

[0024] Figure 6 This is the present invention. Figure 5 A magnified structural diagram at point A;

[0025] Figure 7 This is the present invention. Figure 1 A schematic diagram of the feeding mechanism;

[0026] Figure 8 This is the present invention. Figure 1 A schematic diagram of the two parts of the film feeding mechanism;

[0027] Figure 9This is the present invention. Figure 8 A magnified structural diagram at point B;

[0028] Figure 10 This is the present invention. Figure 8 A frontal view of the structure. Detailed Implementation

[0029] 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.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] The following is combined with Figure 1-10The present invention describes an automatic wrapping machine, comprising a frame 18, on which a feeding mechanism, a film feeding mechanism, and a heat shrinking mechanism are provided. The feeding mechanism includes a support plate 19, which is fixedly mounted on the frame 18. A first hydraulic cylinder 39 is provided on one side of the support plate 19, and the cylinder barrel of the first hydraulic cylinder 39 is fixedly connected to the support plate 19. A top plate 30 is fixedly provided at one end of the piston rod of the support plate 19. The film feeding mechanism includes a sliding rod 14 slidably mounted on the frame 18. A second hydraulic cylinder 55 is provided on the sliding rod 14, and the piston rod of the second hydraulic cylinder 55 is fixedly connected to the sliding rod 14. A semi-frame 52 is fixedly provided at one end of the cylinder barrel of the second hydraulic cylinder 55, and a plurality of suction cups 53 are fixedly provided on the side of the semi-frame 52 away from the sliding rod 14. The heat shrinking mechanism includes a heating box 13, which is fixedly connected to the frame 18. A microwave generator 25 is fixedly provided on the side of the heating box 13 away from the film feeding mechanism. The microwave generator of the film feeding mechanism is located away from the heat shrink mechanism, preventing external interference that could cause deformation of the film before it is wrapped around the reagent kit 15. The feeding mechanism and the film feeding mechanism work together to form a one-kit-one-film combination, quickly wrapping the film onto 15. Heat shrinking is then completed by the heat shrink mechanism, resulting in a high degree of automation and efficiency. The double-layer film 45 is made of PVC heat shrink film, which initially shrinks at 50°C and fully shrinks at 180°C. The suction cups 53 are connected to the air pump in parallel, allowing multiple suction cups 53 to simultaneously suction and blow air. During production, the reagent kit 15 passes through the heating chamber 13 twice. This unique partial heat shrinking method still produces an aesthetically pleasing finished reagent kit, but reduces the high-temperature resistance requirements. This achieves cost savings in terms of reagent materials, size, and thickness, while also reducing storage and transportation costs.

[0032] Advantageously, the feeding mechanism also includes a mounting plate 17, which is fixedly mounted on the frame 18. A third hydraulic cylinder 29 is provided on one side of the mounting plate 17, and the cylinder barrel of the third hydraulic cylinder 29 is fixedly connected to the mounting plate 17. A cylinder 50 is provided at one end of the piston rod of the third hydraulic cylinder 29. A support plate 51 is controlled on each side of the cylinder 50. A push plate 16 is fixedly provided on the side of the cylinder 50 away from the mounting plate 17. After the reagent kit 15 enters the membrane material, the support plate 51 can open the open side of the membrane material, which facilitates obtaining a flat, flush, and aesthetically pleasing heat-sealing mark during the secondary sealing of the membrane material.

[0033] Advantageously, the film feeding mechanism further includes a slide rail 40, on the side of the slide rail 40 near the frame 18, a slider 54 is slidably mounted, the slider 54 is fixedly connected to the sliding rod 14, a column 43 is fixedly mounted at one end of the slide rail 40, and the end of the column 43 away from the slide rail 40 is fixedly connected to the frame 18; a control motor 60 is fixedly mounted on one side of the sliding rod 14, a transmission gear 59 is fixedly mounted on the output shaft of the control motor 60, a drive gear 58 is mounted on one side of the transmission gear 59, the drive gear 58 meshes with the transmission gear 59, the drive gear 58 is rotatably mounted on a connecting plate 61, and the connecting plate 61 is fixedly connected to the sliding rod 14; a rack is provided inside the slide rail 40, and the drive gear 58 meshes with the rack. The slider 54 has a non-flat side structure with notches, and the slide rail 40 has ribs that match it. The slider 54 will not fall out of the slide rail. The rack is hidden inside the slide rail 40 and covers the entire inner wall of the top of the slide rail.

[0034] Beneficially, it also includes a first conveyor belt 31, a second conveyor belt 36, a third conveyor belt 27, a fourth conveyor belt 35, and a fifth conveyor belt 32, all located at the same horizontal level. The first conveyor belt 31, the second conveyor belt 36, the third conveyor belt 27, the fourth conveyor belt 35, and the fifth conveyor belt 32 are respectively mounted on the frame 18 and are individually controlled by multiple servo motors 28, which are respectively fixedly mounted on the frame 18. The first conveyor belt 31 is connected to the top plate 30. The third conveyor belt 27 is located on one side of the first conveyor belt 31 and is opposite to the conveying direction of the first conveyor belt 31. The second conveyor belt 36 is located at one end of the first conveyor belt 31 and forms a 90-degree angle with the conveying direction of the first conveyor belt 31. The end of the second conveyor belt 36 away from the first conveyor belt 31 is connected to the third conveyor belt 27. Transition rollers are provided at the joints of the first conveyor belt 31 and the second conveyor belt 36, and the second conveyor belt 36 and the third conveyor belt 27, so that the reagent kit 15 can smoothly change the transport direction. The end of the first conveyor belt 31 is connected to the side of the second conveyor belt 36, and the end of the second conveyor belt 36 is connected to the side of the third conveyor belt 27. The reagent kit 15 can be pushed onto the second conveyor belt 36 or the third conveyor belt 27 from the end of the first conveyor belt 31 or the end of the second conveyor belt 36.

[0035] Advantageously, the fourth conveyor belt 35 and the fifth conveyor belt 32 are located on the side of the first conveyor belt 31 away from the third conveyor belt 27. The fourth conveyor belt 35 and the fifth conveyor belt 32 are connected end to end and their conveying directions are the same. The half-frame 52 moves along the length of the slide rail 40 following the sliding rod 14. The two ends of the movement trajectory of the half-frame 52 correspond to the ends of the fifth conveyor belt 32 and the first conveyor belt 31 away from the heating box 13, respectively. The half-frame 52 will move along the path of the reagent kit 15 carrying the cut membrane material.

[0036] Advantageously, the heat shrinking mechanism further includes a heat dissipation box 12, which is located on the side of the heating box 13 away from the mounting plate 17. The heating box 13 has two openings on both the side away from the heat dissipation box 12 and the side closer to the heat dissipation box 12. Each of the four openings has a shielding door 26, which is hinged to the side wall of the heating box 13 via a torsion spring. The heating box 13 has a baffle inside, forming two separate spaces: a low-temperature space and a high-temperature space. The space closer to the microwave generator 25 is the high-temperature space, which is connected to the third conveyor belt 27. The low-temperature space is connected to the first conveyor belt 31. Each end of the high-temperature space and each end of the low-temperature space corresponds to a shielding door 26. The heat dissipation box 12 has a grille on the side away from the frame 18, and both ends of the heat dissipation box 12 are connected to the high-temperature space and the low-temperature space, respectively. During the production process, the PVC film first passes slowly through a low-temperature space to complete the initial shrinkage and determine the initial shape. Then it passes quickly through a high-temperature space to complete the final shrinkage, ensuring that the reagents inside the kit are not exposed to high temperatures for a long time and that the yield of the kit does not decrease due to the heat shrink wrapping process.

[0037] Advantageously, the second conveyor belt 36 has a hollow structure, and a cooling fan 42 is provided on the side of the second conveyor belt 36 away from the heat sink 12. The cooling fan 42 is fixedly mounted on the load-bearing plate 41, and the load-bearing plate 41 is fixedly connected to the frame 18. During the process between the two heat shrinking operations, the reagent kit 15 utilizes the heat sink 12 to eliminate the heat generated during the first passage through the heat space, ensuring that the reagent kit 15 is not continuously affected by high temperatures.

[0038] Advantageously, the film feeding mechanism further includes a gantry frame 11, which is fixedly connected to the frame 18. A hanging plate 44 is fixedly provided on the side of the gantry frame 11 near the frame 18. The end of the slide rail 40 away from the column 43 is fixedly connected to the hanging plate 44. The hanging plate 44 is provided with a fourth hydraulic cylinder 24 located on both sides of the gantry frame 11. The cylinder of the fourth hydraulic cylinder 24 is fixedly connected to the hanging plate 44. A front pressure roller box 34 is fixedly provided at one end of the piston rod of the fourth hydraulic cylinder 24. Multiple front pressure rollers 37 are rotatably provided in the front pressure roller box 34. The cylinder of the fifth hydraulic cylinder 21 is fixedly connected to the hanging plate 44. A rear pressure roller box 33 is fixedly provided at one end of the piston rod of the fifth hydraulic cylinder 21. Multiple rear pressure rollers 38 are rotatably provided in the rear pressure roller box 33. Both the front pressure roller 37 and the rear pressure roller 38 are powered by motors fixed inside the front pressure roller box 34 and the rear pressure roller box 33.

[0039] Advantageously, a mounting plate 46 is provided between the front pressure roller box 34 and the rear pressure roller box 33. The mounting plate 46 is fixedly connected to the hanging plate 44. A sixth hydraulic cylinder 47 is provided on one side of the mounting plate 46. The cylinder of the sixth hydraulic cylinder 47 is fixedly connected to the mounting plate 46. A knife holder 23 is fixedly provided at one end of the piston rod of the mounting plate 46. A cold knife 49 and a hot knife 48 are fixedly provided at the end of the knife holder 23 away from the mounting plate 46. The knife holder 23 is located at the connection between the fourth conveyor belt 35 and the fifth conveyor belt 32. A collection box 22 is fixedly provided on the side of the frame 18 away from the knife holder 23. After the cold knife 49 cuts the film material, a conventional cut (not closed) can be obtained, which serves as the open end of the next film material. After the hot knife 48 cuts, a heat-sealed cut (closed) is obtained, which serves as the closed end of this film material. The scrap material obtained between the two blades is collected.

[0040] Advantageously, a connecting rod 62 is fixedly provided on one side of the sliding rod 14, and a fixing plate 56 is fixedly provided on the connecting rod 62. A seventh hydraulic cylinder 57 is provided on the fixing plate 56, and the cylinder barrel of the seventh hydraulic cylinder 57 is fixedly connected to the fixing plate 56. A sealing knife 20 is fixedly provided at one end of the piston rod of the fixing plate 56. The sealing knife 20 and the hot knife 48 operate on the same principle, using a high-temperature blade to instantly heat the film material, causing the two layers of film material to adhere together.

[0041] Working principle of this invention:

[0042] In the initial state, the double-layer membrane 45 is wound on the master roll (the double-layer membrane 45 unfolds into a cylindrical shape, and after being flattened, it is a double-layer state with the two sides connected); the reagent kit 15 is filled with customized reagents and is transported to the top plate 30 by a conventional conveying mechanism (conveyor belt or robotic arm, etc.); the microwave generator 25 is started and preheated to obtain a suitable temperature in both the low-temperature space and the high-temperature space.

[0043] The film feeding mechanism is started, the fourth conveyor belt 35 and the fifth conveyor belt 32 are started, and at the same time the fourth hydraulic cylinder 24 is started to control the front pressure roller box 34 to descend until the front pressure roller 37 contacts the double-layer film material 45. The front pressure roller 37 is started, and the front pressure roller 37 and the fourth conveyor belt 35 clamp the double-layer film material 45, pulling the double-layer film material 45 and guiding it to move to the side of the rear pressure roller box 33. After the double-layer film material 45 passes the knife holder 23, the fifth hydraulic cylinder 21 is started to control the rear pressure roller box 33 to descend until the rear pressure roller 38 contacts the double-layer film material 45. The rear pressure roller 38 is started, and the fifth conveyor belt 32 and the rear pressure roller 38 clamp the double-layer film material 45, pulling the double-layer film material 45 again. When the double-layer film material 45 moves to the designated position, the front pressure roller 37 and the fourth conveyor belt 35 stop, and the rear pressure roller 38 and the fifth conveyor belt 32 stop.

[0044] The sixth hydraulic cylinder 47 is activated, controlling the cutter holder 23 to descend and reset. The cold cutter 49 and the hot cutter 48 simultaneously contact the double-layer membrane material 45, cutting the double-layer membrane material 45 and forming scrap. The scrap falls into the collection box 22. A normal cut is formed at the cold cutter 49, and a sealing interface is formed at the hot cutter 48.

[0045] After the fifth hydraulic cylinder 21 starts and controls the pressure roller box 33 to reset, the second hydraulic cylinder 55 starts and controls the half frame 52 to descend. At the same time, the air pump starts and multiple suction cups 53 suck up the two ends of the cut membrane material (hereinafter referred to as membrane material, at this time one end of the membrane material is sealed and the other end is open).

[0046] The control motor 60 starts, controlling the transmission gear 59 to rotate. The transmission gear 59 drives the drive gear 58 to rotate. The drive gear 58 meshes with the rack, causing the sliding rod 14 and its directly connected components to rotate. Figure 8 (Partial) The whole movement, the cut membrane material is moved to the upper side of the first conveyor belt 31 (one end of the membrane material is in a naturally open state, only the upper side of the open side is traction, and the lower side hangs down naturally under the action of gravity, without considering electrostatic adhesion);

[0047] When the feeding mechanism is started, the first hydraulic cylinder 39 starts to control the top plate 30 to rise slightly above the first conveyor belt 31, and the third hydraulic cylinder 29 starts to control the push plate 16 to push out. After the push plate 16 contacts the reagent kit 15, it drives the reagent kit 15 to move together until the reagent kit 15 enters the interior of the membrane from the open end of the membrane.

[0048] During the above process, the film feeding mechanism has already cut and prepared the next piece of film. Specifically: after the half frame 52 leaves the side where the fifth conveyor belt 32 is located, the front pressure roller 37 and the fourth conveyor belt 35 start first, pulling the double-layer film 45 through the knife holder 23. Then, the fifth hydraulic cylinder 21 starts, controlling the rear pressure roller box 33 to descend. The rear pressure roller 38 and the fifth conveyor belt 32 start, pulling the double-layer film 45 to the designated position again. Then the operation is repeated, which is completely consistent with the above principle.

[0049] After reagent kit 15 enters the membrane material, cylinder 50 is activated, controlling the two support plates 51 to unfold and tighten the open side of the membrane material. The seventh hydraulic cylinder 57 is activated, controlling the sealing knife 20 to fall and seal the open side of the membrane material, then resets. Then, cylinder 50 and the third hydraulic cylinder 29 both reset, awaiting the arrival of the next reagent kit 15. (Scrap material generated during the secondary sealing of the membrane material can be blown into the collection box 22 by a fan installed on the side of the frame 18).

[0050] After both ends of the membrane are sealed, the air pump releases air and controls multiple suction cups 53 to release the membrane at the same time. The membrane containing the reagent kit 15 falls to contact the first conveyor belt 31. The first conveyor belt 31 is always in the start state. The first conveyor belt 31 drives the reagent kit 15 to move. After passing through a shielding door 26 (the shielding door 26 is normally closed without external force under the action of a torsion spring), it enters the low temperature space.

[0051] The reagent kit 15 passes through the low-temperature space at a low speed (v) (control motor 60°C) to complete the initial heat shrinkage, with a heat shrinkage degree of 40%;

[0052] After the outer membrane material has been preliminarily heat-shrinked, the reagent kit 15 has a preliminary shape. As the first conveyor belt 31 continues to move through the low temperature space to the upper surface of the second conveyor belt 36, the second conveyor belt 36 continues to start, and the cold air blower 42 continues to start, so that the reagent kit 15 quickly returns to room temperature. The second conveyor belt 36 carries the reagent kit 15 through the heat dissipation box 12 to the upper surface of the third conveyor belt 27.

[0053] The third conveyor belt 27 continues to start, driving the reagent kit 15 through the high-temperature space (rack 180°C) at a relatively fast speed (5V). During this process, the outer membrane of the reagent kit 15 is instantly heat-shrinked to obtain the finished product. The finished reagent kit 15 (the outer membrane-coated reagent kit 15) moves with the third conveyor belt 27 into the next production stage.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An automatic wrapping machine, characterized in that: The system includes a frame, on which a feeding mechanism, a film feeding mechanism, and a heat shrinking mechanism are mounted. The feeding mechanism includes a support plate fixedly mounted on the frame. A first hydraulic cylinder is mounted on one side of the support plate, with its cylinder barrel fixedly connected to the support plate. A top plate is fixedly mounted on one end of the piston rod of the support plate. The film feeding mechanism includes a sliding rod slidably mounted on the frame. A second hydraulic cylinder is mounted on the sliding rod, with its piston rod fixedly connected to the sliding rod. A semi-frame is fixedly mounted on one end of the cylinder barrel of the second hydraulic cylinder, and multiple suction cups are fixedly mounted on the side of the semi-frame away from the sliding rod. The heat shrinking mechanism includes a heating chamber fixedly connected to the frame. A microwave generator is fixedly mounted on the side of the heating chamber away from the film feeding mechanism. The feeding mechanism also includes a mounting plate fixedly mounted on the frame. It also includes a first conveyor belt, a second conveyor belt, a third conveyor belt, a fourth conveyor belt, and a fifth conveyor belt, all located at the same horizontal level; The heat shrinking mechanism also includes a heat sink, which is located on the side of the heating box away from the mounting plate. The heating box has two openings on both the side away from the heat sink and the side closer to the heat sink. Each of the four openings has a shielding door, which is hinged to the side wall of the heating box via a torsion spring. The heating box has a baffle plate inside, forming two separate spaces: a low-temperature space and a high-temperature space. The space closer to the microwave generator is the high-temperature space, which is connected to the third conveyor belt. The low-temperature space is connected to the first conveyor belt. Each end of the high-temperature space and each end of the low-temperature space corresponds to a shielding door. The side of the heat sink away from the frame has a grille, and both ends of the heat sink are connected to the high-temperature space and the low-temperature space, respectively.

2. The automatic wrapping machine according to claim 1, characterized in that: A third hydraulic cylinder is provided on one side of the mounting plate. The cylinder barrel of the third hydraulic cylinder is fixedly connected to the mounting plate. A cylinder is provided at one end of the piston rod of the third hydraulic cylinder. A support plate is controlled on each side of the cylinder. A push plate is fixedly provided on the side of the cylinder away from the mounting plate.

3. An automatic wrapping machine according to claim 2, characterized in that: The film feeding mechanism further includes a slide rail, on the side of the slide rail near the frame a slider is slidably mounted thereon, the slider is fixedly connected to the slide rod, one end of the slide rail is fixedly mounted with a column, and the end of the column away from the slide rail is fixedly connected to the frame; a control motor is fixedly mounted on one side of the slide rod, a transmission gear is fixedly mounted on the output shaft of the control motor, a drive gear is mounted on one side of the transmission gear, the drive gear meshes with the transmission gear, the drive gear is rotatably mounted on a connecting plate, and the connecting plate is fixedly connected to the slide rod; a rack is provided inside the slide rail, and the drive gear meshes with the rack.

4. An automatic wrapping machine according to claim 3, characterized in that: The first conveyor belt, the second conveyor belt, the third conveyor belt, the fourth conveyor belt, and the fifth conveyor belt are respectively mounted on the frame and are individually controlled by multiple servo motors, which are respectively fixedly mounted on the frame. The first conveyor belt is connected to the top plate, the third conveyor belt is located on one side of the first conveyor belt and is opposite to the conveying direction of the first conveyor belt, the second conveyor belt is located at one end of the first conveyor belt and forms a 90-degree angle with the conveying direction of the first conveyor belt, and the end of the second conveyor belt away from the first conveyor belt is connected to the third conveyor belt.

5. An automatic wrapping machine according to claim 4, characterized in that: The fourth and fifth conveyor belts are located on the side of the first conveyor belt away from the third conveyor belt. The fourth and fifth conveyor belts are connected end to end and have the same conveying direction. The half-frame moves along the length of the slide rail following the sliding rod. The two ends of the half-frame's movement trajectory correspond to the ends of the fifth and first conveyor belts away from the heating box, respectively.

6. An automatic wrapping machine according to claim 5, characterized in that: The second conveyor belt has a hollow structure, and a cooling fan is provided on the side of the second conveyor belt away from the heat dissipation box. The cooling fan is fixedly mounted on the load-bearing plate, and the load-bearing plate is fixedly connected to the frame.

7. An automatic wrapping machine according to claim 6, characterized in that: The film feeding mechanism also includes a gantry frame, which is fixedly connected to the machine frame. A hanging plate is fixedly installed on the side of the gantry frame closer to the machine frame, and the end of the slide rail away from the column is fixedly connected to the hanging plate. A fourth hydraulic cylinder and a fifth hydraulic cylinder are respectively located on both sides of the gantry frame on the hanging plate. The cylinder barrel of the fourth hydraulic cylinder is fixedly connected to the hanging plate, and a front pressure roller box is fixedly installed at one end of the piston rod of the fourth hydraulic cylinder. Multiple front pressure rollers are rotatably installed in the front pressure roller box. The cylinder barrel of the fifth hydraulic cylinder is fixedly connected to the hanging plate, and a rear pressure roller box is fixedly installed at one end of the piston rod of the fifth hydraulic cylinder. Multiple rear pressure rollers are rotatably installed in the rear pressure roller box.

8. An automatic wrapping machine according to claim 7, characterized in that: A mounting plate is provided between the front pressure roller box and the rear pressure roller box. The mounting plate is fixedly connected to the hanging plate. A sixth hydraulic cylinder is provided on one side of the mounting plate. The cylinder barrel of the sixth hydraulic cylinder is fixedly connected to the mounting plate. A knife holder is fixedly provided at one end of the piston rod of the mounting plate. A cold knife and a hot knife are fixedly provided at the end of the knife holder away from the mounting plate. The knife holder is located at the connection between the fourth conveyor belt and the fifth conveyor belt. A collection box is fixedly provided on the side of the frame away from the knife holder.

9. An automatic wrapping machine according to claim 3, characterized in that: A connecting rod is fixedly provided on one side of the sliding rod, and a fixing plate is fixedly provided on the connecting rod. A seventh hydraulic cylinder is provided on the fixing plate, and the cylinder barrel of the seventh hydraulic cylinder is fixedly connected to the fixing plate. A sealing knife is fixedly provided at one end of the piston rod of the fixing plate.

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