A continuous packaging equipment for bird's nest production

Abstract

This invention relates to the field of packaging equipment technology, specifically to a continuous packaging device for bird's nest production. The continuous packaging device for bird's nest production includes a bag-making mechanism and a forming mechanism. The bird's nest includes a cup body and a base. The bag-making mechanism includes a forming mold, a raw material film, and a first thermoplastic component. The forming mechanism includes an upper mold and a lower mold. The forming mold and the raw material film are in contact. The first thermoplastic component heats the raw material film, causing it to adhere to the forming mold and form a bird's nest film capable of containing the bird's nest with a seam located at the base of the bird's nest. This prevents the seam from being located at the corners of the bird's nest, thus avoiding edge breakage and bird's nest breakage. Furthermore, the seam at the base of the bird's nest does not affect its appearance when sold. This invention provides a continuous packaging device for bird's nest production to solve the problem in existing bird's nest packaging equipment where excessive edge sealing of the packaging film affects the neatness of the bird's nest's appearance and increases the probability of edge breakage.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, specifically to a continuous packaging equipment for bird's nest production. Background Technology

[0002] As a high-end health supplement, bird's nest requires stable packaging to ensure its quality, prevent microbial contamination, nutrient loss, and flavor changes, and facilitate consumer storage. Currently, heat shrink film is a commonly used material for bird's nest packaging. However, the packaging process in the bird's nest industry still relies heavily on manual labor or semi-automated equipment. Traditional processes such as filling, weighing, capping, and sealing are primarily done manually. This method is not only inefficient and has limited production capacity, making it difficult to meet large-scale market demand, but more importantly, manual operation easily leads to significant quality fluctuations and hygiene risks. Factors such as hand contact and improper handling can introduce microbial contamination, which is particularly detrimental to high-value, high-hygiene-requirement foods like bird's nest.

[0003] Bird's nest consists of a cup-shaped body and a base. The cup-shaped body is boat-shaped, including a convex surface, a concave surface, and two sides, which form two included angles. The base is fixed to one side of the cup-shaped body, and its thickness is greater than that of the cup-shaped body. Therefore, when covering it with a protective film, a dead corner can easily form at the base, resulting in more air residue and affecting the preservation effect of the bird's nest.

[0004] For example, patent application CN119840911A discloses a packaging device for bird's nest production, which uses a first heat-shrink film and a second heat-shrink film to cover the bird's nest, and then achieves packaging through welding. However, this method produces a lot of sealing edges during welding. Since the corners of the bird's nest are relatively sharp and the base is relatively thick, the sealing edges have poor elasticity and are prone to breakage during transportation, leading to the bird's nest breaking. Furthermore, excessive sealing not only affects the neatness of the appearance but also increases the risk of edge breakage. Summary of the Invention

[0005] This invention provides a continuous packaging equipment for bird's nest production, which solves the problem that excessive sealing of the packaging film in existing bird's nest packaging equipment affects the neatness of the bird's nest appearance and increases the probability of the sealing breaking.

[0006] The present invention provides a continuous packaging equipment for bird's nest production, comprising a support, a turntable, a bag-making mechanism, at least one forming mechanism, and at least one adjusting mechanism. The turntable is vertically oriented and rotatably mounted on the support.

[0007] The bird's nest consists of a cup-shaped body and a base. The cup-shaped body is boat-shaped, and the base is fixedly mounted on one side of the cup-shaped body. The forming mechanism is located on a turntable and is offset from the axis of the turntable. The forming mechanism includes an upper mold and a lower mold that interlock with each other, forming a cavity between the upper mold and the lower mold. The bird's nest is located within the cavity, and the base is located on the side away from the axis of the turntable.

[0008] The bag-making mechanism is mounted on a support and includes a first thermoplastic component, a forming mold that matches the cavity, and a vertically arranged raw material film. The forming mold can slide radially along the turntable and is used to contact the raw material film. The first thermoplastic component heats the raw material film, causing it to adhere to the forming mold and form a bird's nest film capable of containing the bird's nest with a seam located at the base. The bird's nest film is located within the cavity, and the bird's nest is located within the bird's nest film. Each adjustment mechanism includes a second thermoplastic component for enclosing the bird's nest with the bird's nest film.

[0009] Furthermore, a continuous packaging device for bird's nest production also includes a first cutting mechanism, a sealing mechanism, and a second cutting mechanism. The first cutting mechanism is used to cut the connection between the raw material film and the bird's nest film in the mold cavity. Each adjusting mechanism also includes a release component for separating the molding die and the bird's nest film in the mold cavity. The second cutting mechanism is used to trim any excess bird's nest film after wrapping the bird's nest. The sealing mechanism is used to heat-shrink and seal the seam of the bird's nest film containing the bird's nest.

[0010] The support frame is divided into four sections along the circumference of the turntable: a bag-making area, a feeding area, a thermoforming area, a trimming area, a finishing area, and a blanking area. The forming mechanism passes through these areas sequentially as the turntable rotates.

[0011] Both the bag-making mechanism and the first cutting mechanism are located within the bag-making area. When the forming mechanism is in the feeding area, the bird's nest is manually placed into the bird's nest film through the seam opening. When the forming mechanism is in the thermoforming area, the second thermoforming component causes the bird's nest film to wrap around the bird's nest. The second cutting mechanism is located in the edge-trimming area. The sealing mechanism is located in the edge-finishing area.

[0012] Furthermore, the bag-making mechanism also includes a first hydraulic cylinder and a connecting rod. The first hydraulic cylinder is mounted on a support, and the connecting rod is arranged radially along the turntable. One end of the connecting rod is fixedly connected to the extended end of the first hydraulic cylinder, and the other end of the connecting rod is fixedly connected to the forming mold.

[0013] Furthermore, the raw material film is positioned on the side closest to the turntable axis relative to the forming mold. The bag-making mechanism also includes a first fixed frame, a first motor, a first rotating rod, and a second rotating rod. The first fixed frame is fixedly mounted on the support. Both the first and second rotating rods are arranged tangentially to the turntable and are rotatably mounted on the first fixed frame. The first rotating rod is positioned above the second rotating rod. The upper side of the raw material film is wound around the first rotating rod, and the lower side of the raw material film is wound around the second rotating rod. The first motor is mounted on the support, and the output shaft of the first motor is connected to the second rotating rod.

[0014] Furthermore, a first hot air source is provided on the support. The first thermoplastic assembly includes two first hot air pipes, with a first air inlet and a first air outlet at their respective ends. The first air inlet of the first hot air pipe is connected to the first hot air source. The first air outlet of the first hot air pipe is connected to the first fixed frame. The first air outlets of the two first hot air pipes are located on both sides of the upper mold along the circumference of the turntable, and are situated between the raw material film and the forming mechanism.

[0015] Furthermore, the first cutting mechanism is located between the raw material film and the forming mechanism. Both the first and second cutting mechanisms include a blade holder, an upper blade plate, a lower blade plate, a blade, a second hydraulic cylinder, and a third hydraulic cylinder. The blade holder in the first cutting mechanism is mounted on a support. A fourth hydraulic cylinder is mounted on the support, with its extended end arranged radially along the turntable. The fourth hydraulic cylinder is fixedly connected to the blade holder in the second cutting mechanism.

[0016] The upper blade, lower blade, and blade are all vertically arranged. The lower blade is mounted on the blade holder. The upper blade is positioned above the lower blade and slides vertically on the blade holder. The lower and upper blades cooperate to clamp the bird's nest membrane at the seam. The blade slides vertically on the blade holder to cut the bird's nest membrane. The second and third hydraulic cylinders are both mounted on the blade holder. The extended end of the second hydraulic cylinder is connected to the upper blade. The extended end of the third hydraulic cylinder is connected to the blade.

[0017] Furthermore, the sealing mechanism includes a second fixing frame and a second hot air duct, with the second fixing frame mounted on the support. One end of the second hot air duct is connected to the first hot air source, and the other end of the second hot air duct is fixedly mounted on the support and corresponds to the seam of the bird's nest film.

[0018] Furthermore, an air box is fixedly installed on the turntable, and a first air pipe and a second air pipe are installed on the air box. The first air pipe is connected to the upper mold. The second air pipe is connected to the lower mold. Both the first and second air pipes are connected to the mold cavity. The release assembly includes an air pump, which is connected to the air box and is used to draw air into the mold cavity through the first and second air pipes. The second thermoplastic assembly includes a second hot air source, which is connected to the air box and is used to introduce hot air into the mold cavity through the first and second air pipes.

[0019] Furthermore, the turntable is provided with at least one third fixed frame, on which a positioning rod and a bidirectional threaded rod are vertically mounted. The positioning rod is fixedly mounted on the third fixed frame. The bidirectional threaded rod is rotatably mounted on the third fixed frame. The bidirectional threaded rod has a first thread and a second thread with opposite directions of rotation. A second motor is mounted on the third fixed frame, and the output shaft of the second motor is connected to the bidirectional threaded rod.

[0020] The upper and lower molds are slidably mounted on the positioning rod. Both the upper and lower molds are threadedly connected to the bidirectional threaded rod, with the upper mold threaded into the first thread and the lower mold into the second thread. When the bidirectional threaded rod rotates in the forward direction, the upper and lower molds move closer together. When the bidirectional threaded rod rotates in the reverse direction, the upper and lower molds move further apart.

[0021] Furthermore, a third motor is fixedly mounted on the bracket. The output shaft of the third motor is coaxial with the turntable and is fixedly connected to the turntable.

[0022] The beneficial effects of this invention are as follows: In this continuous packaging equipment for bird's nest production, the adjusting mechanism and the bag-making mechanism are first aligned. The forming mold and the raw material film come into contact, and the first thermoplastic component heats the raw material film, causing it to adhere to the forming mold and form a bird's nest film capable of accommodating the bird's nest with a seam located at the base of the bird's nest.

[0023] Next, the bird's nest membrane is placed into the cavity, and then the bird's nest is placed inside the membrane. The second thermoplastic component ensures that the bird's nest membrane completely encloses the bird's nest, preventing air from accumulating in dead corners due to uneven thickness of the bird's nest base, which would affect the preservation of the bird's nest.

[0024] Because the base of a bird's nest is relatively thick, and the two corners are relatively sharp compared to the base, the seam of the bird's nest membrane is designed to be only one, located at the base of the bird's nest. This prevents the seam from being located at the two corners of the bird's nest, which could lead to cracking of the seal and breakage of the bird's nest. Furthermore, the seal at the base of the bird's nest is not easily noticeable, leaving only one seam, which does not affect the appearance when sold. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1Enlarged view of point A in the middle;

[0028] Figure 3 This is a top view of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram from another perspective of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0030] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0031] Figure 6 This is a schematic diagram of the structure of the first cutting mechanism of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the forming mechanism of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0033] Figure 8 This is a partial structural diagram of the bag-making mechanism of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0034] Figure 9 This is a partial structural schematic diagram of a continuous packaging equipment for bird's nest production provided in an embodiment of the present invention;

[0035] Figure 10 A cross-sectional view of a bird's nest film coating forming mold for a continuous packaging equipment for bird's nest production, provided in an embodiment of the present invention;

[0036] Figure 11 A cross-sectional view of a bird's nest film-coated bird's nest provided by a continuous packaging equipment for bird's nest production according to an embodiment of the present invention;

[0037] Figure 12 This is a schematic diagram of bird's nest packaged by a continuous packaging device for bird's nest production, as provided in an embodiment of the present invention.

[0038] In the diagram: 100, support frame; 101, turntable; 102, first hydraulic cylinder; 103, air box; 1031, first air pipe; 104, upper mold; 105, lower mold; 107, raw material film; 108, forming mold; 1082, bird's nest film; 110, knife holder; 111, second hydraulic cylinder; 112, upper blade; 113, lower blade; 114, blade; 115, bird's nest; 1151, base; 116, third hydraulic cylinder; 117. Fourth hydraulic cylinder; 120. Bag making area; 121. Feeding area; 122. Thermoplastic forming area; 123. Trimming area; 124. Edge finishing area; 125. Unloading area; 130. Connecting rod; 140. First fixing frame; 141. First rotating rod; 142. Second rotating rod; 150. First hot air pipe; 160. Second fixing frame; 170. Bidirectional threaded rod; 171. Second motor; 190. First hot air source. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Reference Figures 1 to 12 As shown in the figure, an embodiment of the present invention provides a continuous packaging equipment for bird's nest production, used for packaging bird's nest 115, including a support 100, a turntable 101, a bag-making mechanism, a sealing mechanism, a first cutting mechanism, at least one adjusting mechanism, and at least one forming mechanism. The axis of the turntable 101 is vertically arranged and rotatably mounted on the support 100.

[0041] The bird's nest 115 includes a cup body and a base 1151. The cup body is boat-shaped, and the base 1151 is fixedly mounted on one side of the cup body. The thickness of the base 1151 is greater than the thickness of the cup body. A forming mechanism is mounted on a turntable 101 and offset from the axis of the turntable 101. The forming mechanism includes an upper mold 104 and a lower mold 105 that interlock with each other. The upper mold 104 is located above the lower mold 105, and the two can move closer or further apart, forming a cavity between the upper mold 104 and the lower mold 105. The bird's nest 115 is located within the cavity, and the base 1151 is located on the side away from the axis of the turntable 101.

[0042] The bag-making mechanism is mounted on the support 100 and includes a first thermoplastic component, a molding die 108 that matches the cavity, and a vertically arranged raw material film 107. The molding die 108 is slidable radially along the turntable 101 and is used to contact the raw material film 107. The first thermoplastic component heats the raw material film 107, causing it to adhere to the molding die 108 and form a bird's nest film 1082 capable of accommodating the bird's nest 115 with a seam opening located at the base 1151 of the bird's nest 115. A first cutting mechanism cuts the connection between the raw material film 107 and the bird's nest film 1082 within the cavity.

[0043] The adjustment mechanism includes a release component and a second thermoplastic component. The release component is used to release the molding die 108 and the bird's nest film 1082 from the cavity. The second thermoplastic component is used to wrap the bird's nest 115 with the bird's nest film 1082. The sealing mechanism is used to heat-shrink and seal the seam of the bird's nest film 1082 containing the bird's nest 115. The bird's nest film 1082 has only one seam, located at the base 1151 of the bird's nest 115.

[0044] First, the adjusting mechanism and the bag-making mechanism are aligned. The forming mold 108 moves towards the raw material film 107. During the contact between the raw material film 107 and the forming mold 108, the first thermoplastic component heats the raw material film 107, causing it to adhere to the forming mold 108 and form a bird's nest film 1082 that can accommodate the bird's nest 115 and has a seam opening. The seam opening is located at the base 1151 of the bird's nest 115. Then, the first cutting mechanism cuts the connection between the raw material film 107 and the bird's nest film 1082 in the cavity.

[0045] Next, after placing the molding mold 108 and the bird's nest film 1082 into the cavity, the molding mold 108 and the bird's nest film 1082 are detached from the cavity by the release component. Then, the molding mold 108 moves away from the raw material film 107, exiting the cavity, and the bird's nest 115 is placed inside the bird's nest film 1082. The second thermoplastic component ensures that the bird's nest film 1082 wraps around the bird's nest 115, preventing air from accumulating in dead corners due to uneven thickness of the base 1151 of the bird's nest 115, thus affecting the preservation of the bird's nest 115. The sealing mechanism is used to heat-shrink and seal the seams of the bird's nest film 1082 containing the bird's nest 115, thereby completing the packaging of the bird's nest 115.

[0046] Because the base 1151 of bird's nest 115 is relatively thick, and the two corners of bird's nest 115 are relatively sharp compared to the base 1151, the seam of bird's nest membrane 1082 is designed to be only one, located at the base 1151 of bird's nest 115. This prevents the seam from being located at the two corners of bird's nest 115, which could lead to edge breakage and breakage of bird's nest 115. Furthermore, the edge sealing at the base 1151 of bird's nest 115 is not easily noticeable, leaving only one seam, which does not affect the appearance when sold.

[0047] In this embodiment, the support 100 is divided into a bag-making area 120, a feeding area 121, a thermoforming area 122, an edge-trimming area 123, an edge-gathering area 124, and a discharge area 125 along the circumference of the turntable 101. The forming mechanism passes through the bag-making area 120, the feeding area 121, the thermoforming area 122, the edge-trimming area 123, the edge-gathering area 124, and the discharge area 125 in sequence as the turntable 101 rotates.

[0048] Preferably, there are six forming mechanisms, which correspond one-to-one with the bag making area 120, the feeding area 121, the thermoforming area 122, the trimming area 123, the edge-gathering area 124, and the unloading area 125. During operation, the forming mechanisms pass through the bag making area 120, the feeding area 121, the thermoforming area 122, the trimming area 123, the edge-gathering area 124, and the unloading area 125 in sequence.

[0049] Both the bag-making mechanism and the first cutting mechanism are located within the bag-making area 120. When the forming mechanism is located within the feeding area 121, the bird's nest 115 is manually placed into the bird's nest film 1082 through the seam opening. When the forming mechanism is located within the thermoforming area 122, the second thermoforming component causes the bird's nest film 1082 to wrap the bird's nest 115. A continuous packaging device for bird's nest production also includes a second cutting mechanism located within the trimming area 123. The second cutting mechanism is used to trim excess bird's nest film 1082 after wrapping the bird's nest 115. The sealing mechanism is located within the edge-sealing area 124.

[0050] In this embodiment, the forming mold 108 is boat-shaped, with two sides, namely the first side and the second side. The first side of the forming mold 108 is located closer to the axis of the turntable 101 than the second side. The first side of the forming mold 108 corresponds to the base 1151 of the bird's nest 115. The second side of the forming mold 108 is used to abut against the raw material film 107.

[0051] The bag-making mechanism also includes a first hydraulic cylinder 102 and a connecting rod 130. The first hydraulic cylinder 102 is fixedly mounted on the bracket 100, and the connecting rod 130 is arranged radially along the turntable 101. One end of the connecting rod 130 is fixedly connected to the extended end of the first hydraulic cylinder 102, and the other end of the connecting rod 130 is fixedly connected to the first side of the forming mold 108. When the first hydraulic cylinder 102 extends or retracts, it drives the forming mold 108 to move radially along the turntable 101 via the connecting rod 130.

[0052] In this embodiment, the raw material film 107 is positioned on the side closest to the axis of the turntable 101 relative to the forming mold 108. The bag-making mechanism also includes a first fixed frame 140, a first motor, a first rotating rod 141, and a second rotating rod 142. The first fixed frame 140 is fixedly mounted on the support 100. The first rotating rod 141 and the second rotating rod 142 are both arranged tangentially to the turntable 101 and are rotatably mounted on the first fixed frame 140. The first rotating rod 141 is positioned above the second rotating rod 142. The upper side of the raw material film 107 is wound around the first rotating rod 141, and the lower side of the raw material film 107 is wound around the second rotating rod 142. The first motor is fixedly mounted on the support 100, and the output shaft of the first motor is fixedly connected to the second rotating rod 142.

[0053] After the bird's nest membrane 1082 is cut off from the raw material membrane 107, the raw material membrane 107 itself is not completely cut off and remains continuous. The first motor drives the second rotating rod 142 to rotate, pulling the raw material membrane 107 to move, rolling up the waste material, and at the same time conveying the new raw material membrane 107 to the station corresponding to the forming mold 108.

[0054] In this embodiment, a first hot air source 190 is fixedly mounted on the support 100. The first thermoplastic assembly includes two first hot air pipes 150, with a first air inlet and a first air outlet at their respective ends. The first air inlet of the first hot air pipe 150 is connected to the first hot air source 190. The first air outlet of the first hot air pipe 150 is connected to the first fixed frame 140. The first air outlets of the two first hot air pipes 150 are located on both sides of the upper mold 104 along the circumference of the turntable 101, and are situated between the raw material film 107 and the molding mechanism.

[0055] The first hot air source 190 is activated, generating hot air that enters the first hot air duct 150 and is eventually discharged from the first air outlet of the first hot air duct 150. As the molding mold 108 gradually approaches the raw material film 107, the hot air blown out from the first hot air duct 150 adheres the raw material film 107 to the molding mold 108.

[0056] In this embodiment, the plane containing the base 1151 of the bird's nest 115 is vertically arranged. The lower mold 105 includes a fixing plate and a boat-shaped protrusion, one side of which is fixedly connected to the fixing plate. The other side of the boat-shaped protrusion corresponds to the base 1151 of the bird's nest 115 and is vertically arranged. The protrusion abuts against the concave surface of the bird's nest 115. The upper mold 104 has a boat-shaped first groove, which abuts against the convex surface of the bird's nest 115. That is, the shape of the cavity is the same as the shape of the bird's nest 115, and the cavity size is larger than the size of the bird's nest 115 to accommodate bird's nests 115 of different sizes.

[0057] The first cutting mechanism is located between the raw material film 107 and the forming mechanism. Both the first and second cutting mechanisms include a blade holder 110, an upper blade plate 112, a lower blade plate 113, a blade 114, a second hydraulic cylinder 111, and a third hydraulic cylinder 116. The blade holder 110 in the first cutting mechanism is fixedly mounted on the support 100. A fourth hydraulic cylinder 117 is fixedly mounted on the support 100, with its extended end arranged radially along the turntable 101. The fourth hydraulic cylinder 117 is fixedly connected to the blade holder 110 in the second cutting mechanism.

[0058] The upper blade 112, lower blade 113, and blade 114 are all vertically arranged. The lower blade 113 is fixedly mounted on the blade holder 110. A protruding plate with the same radius as the boat-shaped protrusion is fixedly mounted on the lower blade 113. A cutting groove is formed on the protruding plate. The upper blade 112 is located above the lower blade 113 and is slidably mounted on the blade holder 110. A second groove is formed on the upper blade 112 that mates with the boat-shaped protrusion. The lower blade 113 and the upper blade 112 cooperate with each other to clamp the bird's nest membrane 1082 at the seam. The blade 114 is slidably mounted on the blade holder 110 and is positioned within the cutting groove to cut the bird's nest membrane 1082.

[0059] The second hydraulic cylinder 111 and the third hydraulic cylinder 116 are both fixedly mounted on the tool holder 110. The extended end of the second hydraulic cylinder 111 is vertically mounted and fixedly connected to the upper blade plate 112. The extended end of the third hydraulic cylinder 116 is vertically mounted and fixedly connected to the blade 114.

[0060] After the forming mold 108 exits the cavity, the second hydraulic cylinder 111 and the third hydraulic cylinder 116 in the first cutting mechanism are activated. The second hydraulic cylinder 111 first moves the upper blade 112 downward to clamp the connection between the raw material film 107 and the formed bird's nest film 1082. The third hydraulic cylinder 116 then moves the blade 114 downward to cut the connection between the raw material film 107 and the formed bird's nest film 1082.

[0061] In this embodiment, the sealing mechanism includes a second fixing frame 160 and a second hot air pipe. The second fixing frame 160 is fixedly mounted on the support 100. One end of the second hot air pipe is connected to the first hot air source 190, and the other end of the second hot air pipe is fixedly mounted on the support 100 and corresponds to the seam opening of the bird's nest film 1082. When the second hot air source is activated, the hot air blown out of the second hot air pipe performs heat shrink sealing on the seam opening.

[0062] In this embodiment, the upper mold 104 has multiple first air holes, and the lower mold 105 has multiple second air holes, both of which communicate with the cavity. An air box 103 is fixedly mounted on the turntable 101, and the air box 103 has a first air pipe 1031 and a second air pipe. The first air pipe 1031 is connected to the upper mold 104 and communicates with the multiple first air holes. The second air pipe is connected to the lower mold 105 and communicates with the multiple second air holes. The release assembly includes an air pump, which is connected to the air box 103. The second thermoplastic assembly includes a second hot air source, which is connected to the air box 103.

[0063] The air pump is started, and air is drawn in through the first air pipe 1031 and the second air pipe, causing the bird's nest membrane 1082 inside the cavity to detach from the forming mold 108 and adhere to the upper mold 104 and the lower mold 105. The air pump is then turned off, and the second hot air source is started, blowing hot air into the cavity through the first air pipe 1031 and the second air pipe, so that the bird's nest membrane 1082 firmly covers the bird's nest 115 and perfectly conforms to its shape.

[0064] In this embodiment, at least one third fixing frame is fixedly mounted on the turntable 101. A positioning rod and a bidirectional threaded rod 170 are vertically mounted on the third fixing frame. The positioning rod is fixedly mounted on the third fixing frame. The bidirectional threaded rod 170 is rotatably mounted on the third fixing frame. The bidirectional threaded rod 170 has a first thread and a second thread with opposite directions of rotation. A second motor 171 is fixedly mounted on the third fixing frame, and the output shaft of the second motor 171 is fixedly connected to the bidirectional threaded rod 170.

[0065] The upper mold 104 has a first through hole and a second through hole. The upper mold 104 is slidably mounted on the positioning rod through the first through hole, and the lower mold 105 is slidably mounted on the bidirectional threaded rod 170 through the second through hole and the lower mold 105 is slidably mounted on the bidirectional threaded rod 170 through the second through hole and the lower mold 105 through the fourth through hole. The second through hole and the first thread are threadedly engaged. The fourth through hole and the second thread are threadedly engaged. When the bidirectional threaded rod 170 rotates in the forward direction, the upper mold 104 and the lower mold 105 move closer to each other. When the bidirectional threaded rod 170 rotates in the reverse direction, the upper mold 104 and the lower mold 105 move further apart.

[0066] The positioning rod and the bidirectional threaded rod 170 together restrict the upper mold 104 and the lower mold 105 to rotate synchronously with the bidirectional threaded rod 170, so that the upper mold 104 and the lower mold 105 can only move up and down when the bidirectional threaded rod 170 rotates.

[0067] In this embodiment, a third motor is fixedly mounted on the bracket 100. The output shaft of the third motor is coaxially arranged with the turntable 101 and is fixedly connected to the turntable 101. When the third motor is started, it drives the turntable 101 to rotate, and the turntable 101 drives the molding mechanism to rotate.

[0068] Working process: In the initial state, the upper mold 104 and the lower mold 105 are far apart. The upper blade 112 and the lower blade 113 are far apart, and the blade 114 is disengaged from the blade groove.

[0069] The forming mechanism is initially positioned in the bag-making area 120. The first hydraulic cylinder 102 is activated to move the forming mold 108 toward the cavity. The second side of the forming mold 108 first contacts the raw material film 107. Simultaneously, the first hot air source 190 is activated, and the first hot air pipe 150 blows out hot air to heat and adhere the raw material film 107 to the forming mold 108, forming a bird's nest film 1082 that can accommodate the bird's nest 115 and has a seam opening. The seam opening is located at the base 1151 of the bird's nest 115.

[0070] After the forming mold 108 enters the cavity, the bidirectional threaded rod 170 rotates in the opposite direction, causing the upper mold 104 and lower mold 105 to move closer together. Then, the air pump is activated, drawing air through the first air pipe 1031 and the second air pipe, causing the bird's nest membrane 1082 to detach from the forming mold 108 and adhere to the upper mold 104 and lower mold 105. The first hydraulic cylinder 102 then moves the forming mold 108 away from the cavity.

[0071] After the forming mold 108 exits the cavity, the second hydraulic cylinder 111 and the third hydraulic cylinder 116 in the first cutting mechanism are activated. The second hydraulic cylinder 111 first moves the upper blade 112 downward to clamp the connection between the raw material film 107 and the formed bird's nest film 1082. The third hydraulic cylinder 116 then moves the blade 114 downward to cut the connection between the raw material film 107 and the formed bird's nest film 1082.

[0072] After the bird's nest membrane 1082 is cut off from the raw material membrane 107, the raw material membrane 107 itself is not completely cut off and remains continuous. The first motor drives the second rotating rod 142 to rotate, pulling the raw material membrane 107 to move, rolling up the waste material, and at the same time conveying the new raw material membrane 107 to the station corresponding to the forming mold 108.

[0073] Turntable 101 then rotates, driving the forming mechanism to the feeding area 121, where the bird's nest 115 is manually placed into the bird's nest membrane 1082 through the seam.

[0074] Then, turntable 101 continues to rotate, moving the molding mechanism to the thermoforming area 122. The air pump is turned off, and the second hot air source is started. Hot air is blown into the cavity through the first air pipe 1031 and the second air pipe, so that the bird's nest membrane 1082 firmly covers the bird's nest 115 and perfectly fits its shape. This prevents air from accumulating in dead corners due to uneven thickness of the base 1151 of the bird's nest 115, which would affect the preservation of the bird's nest 115.

[0075] Then, turntable 101 continues to rotate, moving the forming mechanism to the trimming area 123. Because the bird's nests 115 are of inconsistent sizes, the bird's nest membrane 1082 cut by the first cutting mechanism has a larger allowance. The second cutting mechanism is then activated to trim away the excess bird's nest membrane 1082 at the seam.

[0076] Turntable 101 rotates again, driving the forming mechanism to move to the edge-sealing area 124, and starting the second hot air source. The hot air blown out of the second hot air pipe is used to heat-shrink and seal the seam.

[0077] Finally, turntable 101 continues to rotate, driving the forming mechanism to move to the unloading area 125, so that the upper mold 104 and the lower mold 105 move away from each other, and the packaged bird's nest 115 is taken out.

[0078] Because the base 1151 of bird's nest 115 is relatively thick, and the two corners of bird's nest 115 are relatively sharp compared to the base 1151, the seam of bird's nest membrane 1082 is designed to be only one, located at the base 1151 of bird's nest 115. This prevents the seam from being located at the two corners of bird's nest 115, which could lead to edge breakage and breakage of bird's nest 115. Furthermore, the edge sealing at the base 1151 of bird's nest 115 is not easily noticeable, leaving only one seam, which does not affect the appearance when sold.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous packaging equipment for bird's nest production, used for packaging bird's nest, characterized in that: It includes a support frame, a turntable, a bag-making mechanism, at least one forming mechanism, and at least one adjusting mechanism; the axis of the turntable is vertically set and rotatably mounted on the support frame; The bird's nest consists of a cup body and a base. The cup body is boat-shaped, and the base is fixedly set on one side of the cup body. The forming mechanism is set on a turntable and is offset from the axis of the turntable. The forming mechanism includes an upper mold and a lower mold that interlock with each other, and a cavity is formed between the upper mold and the lower mold. The bird's nest is located in the cavity, and the base is located on the side away from the axis of the turntable. The bag-making mechanism is mounted on a support and includes a first thermoplastic component, a forming mold that matches the cavity, and a vertically arranged raw material film. The forming mold can slide radially along the turntable and is used to contact the raw material film. The first thermoplastic component is used to heat the raw material film, causing the raw material film to adhere to the forming mold and form a bird's nest film that can accommodate bird's nest and has a seam opening located at the base. The bird's nest film is located inside the cavity, and the bird's nest is located inside the bird's nest film. Each adjustment mechanism includes a second thermoplastic component, which is used to wrap the bird's nest film around the bird's nest.

2. The continuous packaging equipment for bird's nest production according to claim 1, characterized in that: It also includes a first cutting mechanism, a sealing mechanism, and a second cutting mechanism; the first cutting mechanism is used to cut the connection between the raw material film and the bird's nest film in the cavity; each adjustment mechanism also includes a detachment component, which is used to detach the molding die and the bird's nest film in the cavity. The second cutting mechanism is used to trim the excess bird's nest membrane after wrapping the bird's nest; the sealing mechanism is used to heat-shrink and seal the seams of the bird's nest membrane containing the bird's nest. The support frame is divided into a bag making area, a feeding area, a thermoforming area, a trimming area, a finishing area, and a blanking area along the circumference of the turntable. The forming mechanism passes through the bag making area, feeding area, thermoforming area, trimming area, finishing area, and blanking area in sequence as the turntable rotates. Both the bag-making mechanism and the first cutting mechanism are located within the bag-making area; when the forming mechanism is located within the feeding area, the bird's nest is manually placed into the bird's nest film through the seam opening; when the forming mechanism is located within the thermoplastic forming area, the second thermoplastic component causes the bird's nest film to wrap the bird's nest; the second cutting mechanism is located within the edge-trimming area; and the sealing mechanism is located within the edge-gathering area.

3. The continuous packaging equipment for bird's nest production according to claim 1, characterized in that: The bag-making mechanism also includes a first hydraulic cylinder and a connecting rod; the first hydraulic cylinder is mounted on a support, and the connecting rod is arranged radially along the turntable; one end of the connecting rod is fixedly connected to the extended end of the first hydraulic cylinder, and the other end of the connecting rod is fixedly connected to the forming mold.

4. The continuous packaging equipment for bird's nest production according to claim 2, characterized in that: The raw material film is positioned on the side closest to the turntable axis relative to the forming mold; the bag-making mechanism also includes a first fixed frame, a first motor, a first rotating rod, and a second rotating rod; the first fixed frame is fixedly mounted on the support; the first rotating rod and the second rotating rod are both arranged tangentially to the turntable and are rotatably mounted on the first fixed frame; the first rotating rod is positioned above the second rotating rod; the upper side of the raw material film is wound around the first rotating rod, and the lower side of the raw material film is wound around the second rotating rod; the first motor is mounted on the support, and the output shaft of the first motor is connected to the second rotating rod.

5. The continuous packaging equipment for bird's nest production according to claim 4, characterized in that: A first hot air source is provided on the support; the first thermoplastic component includes two first hot air pipes, the two ends of which are a first air inlet and a first air outlet, respectively; the first air inlet of the first hot air pipe is connected to the first hot air source; the first air outlet of the first hot air pipe is connected to the first fixed frame; the first air outlets of the two first hot air pipes are respectively located on both sides of the upper mold along the circumference of the turntable, and are located between the raw material film and the forming mechanism.

6. The continuous packaging equipment for bird's nest production according to claim 2, characterized in that: The first cutting mechanism is located between the raw material film and the forming mechanism; both the first and second cutting mechanisms include a blade holder, an upper blade plate, a lower blade plate, a blade, a second hydraulic cylinder, and a third hydraulic cylinder; the blade holder in the first cutting mechanism is mounted on a support; a fourth hydraulic cylinder is mounted on the support, and the extended end of the fourth hydraulic cylinder is arranged radially along the turntable; the fourth hydraulic cylinder and the blade holder in the second cutting mechanism are fixedly connected. The upper blade, lower blade, and blade are all vertically arranged; the lower blade is mounted on the blade holder; the upper blade is located above the lower blade and is slidably mounted on the blade holder; the lower blade and upper blade cooperate to clamp the bird's nest membrane at the seam; the blade is slidably mounted on the blade holder to cut the bird's nest membrane; the second hydraulic cylinder and the third hydraulic cylinder are both mounted on the blade holder; the extended end of the second hydraulic cylinder is connected to the upper blade; the extended end of the third hydraulic cylinder is connected to the blade.

7. A continuous packaging equipment for bird's nest production according to claim 5, characterized in that: The sealing mechanism includes a second fixing frame and a second hot air pipe. The second fixing frame is mounted on a support. One end of the second hot air pipe is connected to a first hot air source, and the other end of the second hot air pipe is fixedly mounted on the support and corresponds to the seam of the bird's nest film.

8. The continuous packaging equipment for bird's nest production according to claim 2, characterized in that: An air box is fixedly installed on the turntable, and a first air pipe and a second air pipe are installed on the air box; the first air pipe is connected to the upper mold; the second air pipe is connected to the lower mold; both the first air pipe and the second air pipe are connected to the cavity; the release component includes an air pump, which is connected to the air box and is used to draw air into the cavity through the first air pipe and the second air pipe; the second thermoplastic component includes a second hot air source, which is connected to the air box and is used to introduce hot air into the cavity through the first air pipe and the second air pipe.

9. A continuous packaging equipment for bird's nest production according to claim 1, characterized in that: At least one third fixed frame is provided on the turntable. A positioning rod and a bidirectional threaded rod are vertically provided on the third fixed frame. The positioning rod is fixedly provided on the third fixed frame. The bidirectional threaded rod is rotatably provided on the third fixed frame. The bidirectional threaded rod has a first thread and a second thread with opposite directions of rotation. A second motor is provided on the third fixed frame. The output shaft of the second motor is connected to the bidirectional threaded rod. The upper and lower molds are slidably mounted on the positioning rod; both the upper and lower molds are threadedly connected to the bidirectional threaded rod, with the upper mold threaded into the first thread and the lower mold into the second thread; when the bidirectional threaded rod rotates in the forward direction, the upper and lower molds move closer to each other; when the bidirectional threaded rod rotates in the reverse direction, the upper and lower molds move further apart.

10. A continuous packaging equipment for bird's nest production according to claim 1, characterized in that: A third motor is fixedly mounted on the bracket. The output shaft of the third motor is coaxial with the turntable and is fixedly connected to the turntable.

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