A freeze dryer for producing fish skin collagen peptide
By designing a freeze dryer that combines sliding rails and guide rails, the problem of splashing caused by solution sloshing during the production of fish skin collagen peptides was solved, achieving efficient freeze drying and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIQING HEALTH TECH (SUZHOU) CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-21
AI Technical Summary
In the current production of fish skin collagen peptides, the solution splashes due to sloshing during freeze-drying, resulting in raw material waste and equipment contamination. At the same time, it hinders the escape of water vapor, affecting drying efficiency and product quality.
A freeze dryer comprising a housing, a refrigeration unit, and a detachable support tray was designed. Through the sliding engagement of the slide rail groove and the guide rail, combined with the lifting drive mechanism and the sealed top cover, the solution is prevented from splashing out, and cooling and freezing are performed under vacuum conditions to ensure that water vapor can escape smoothly.
This method prevents solution splashing during the pushing process, improves drying efficiency, maintains product quality and yield, reduces energy consumption, and avoids uneven drying and moisture residue.
Smart Images

Figure CN224534648U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of fish skin collagen peptide production technology, specifically to a freeze dryer for fish skin collagen peptide production. Background Technology
[0002] Fish skin collagen peptides are substances with high nutritional value and broad bioactivity, widely used in the food, health product, cosmetic, and pharmaceutical industries. Freeze-drying is a crucial step in their production process. This process allows the water in the fish skin collagen peptide solution to sublimate at low temperatures, thereby maximizing the preservation of its bioactivity, physicochemical properties, and porous structure.
[0003] Currently, freeze-drying of fish skin collagen peptide solutions mostly uses tray-type equipment. Containers containing the solution are placed on shelves or pallets and then pushed into the drying chamber via tracks. During this process, uneven speed or sudden stops can generate inertia, causing the solution to shake and splash, resulting in raw material waste, equipment contamination, and production interruptions. To solve this problem, some producers add lids to the containers. While this can prevent splashing, it severely hinders the escape of water vapor in the subsequent freeze-drying stage, leading to decreased drying efficiency, longer drying time, increased energy consumption, and even problems such as uneven drying, residual moisture, and product clumping, seriously affecting the quality and yield of the finished product.
[0004] Therefore, existing technologies still lack a drying device that can effectively prevent splashing during the pushing stage without affecting the sublimation efficiency during the freeze-drying stage. Utility Model Content
[0005] 1. The technical problem to be solved by the utility model: This invention provides a freeze dryer for producing fish skin collagen peptides, thereby solving the technical problems existing in the background art.
[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a freeze dryer for producing fish skin collagen peptides, comprising a housing, wherein a refrigeration unit and a detachable support tray are provided inside the housing; The carrying tray is composed of a horizontal plate and a vertical plate integrally formed at one end. The horizontal plate has slide rail grooves extending horizontally on both sides, and its top is used to support the open top of the material box. The slide rail grooves on both sides are respectively in sliding fit with the guide rails fixedly set on both sides of the inner wall of the box. The vertical plate matches the insertion slot provided on one side of the box. The box body is also equipped with a sealed top cover that matches the opening at the top of the material box. The top of the sealed top cover is connected to a lifting drive mechanism, which slides in cooperation with two horizontal guide rods symmetrically arranged inside the box body.
[0007] Furthermore, a sealing baffle is integrally formed on the side of the vertical plate that is away from the horizontal plate. The area of the sealing baffle is larger than that of the horizontal plate and completely covers it. The sealing baffle matches the sealing interface connected to the insertion slot on one side of the box. A sealing ring is provided on the side of the sealing baffle facing the horizontal plate. The housing is connected to an air extraction pipe, which is connected to the air inlet of a vacuum pump.
[0008] Furthermore, a handle is installed on the side of the sealing baffle away from the vertical plate. The top of the enclosure is connected to a vent pipe, and a control valve is installed on the vent pipe.
[0009] Furthermore, the lifting drive mechanism includes a movable frame, the top of which is symmetrically provided with mounting lugs. Each of the two mounting lugs has a first guide hole and is slidably engaged with the two horizontal guide rods respectively. A telescopic cylinder is installed at the center of the top of the movable frame. The piston rod of the telescopic cylinder passes vertically downward through the movable frame and is fixedly connected to the center of the top of the sealing top cover. Guide rods are symmetrically fixed at the top of the sealing top cover, and each guide rod is slidably engaged with the corresponding second guide hole on the movable frame.
[0010] Furthermore, a cold trap is provided at the top of the interior of the box, and a water collection box is provided at the corresponding position at the bottom.
[0011] Furthermore, the top of the horizontal plate is provided with four limiting blocks, which together form a limiting area that matches the outer contour of the material box.
[0012] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: the fish skin collagen peptide solution is injected into the material box and placed on the horizontal plate. The box is pushed by the sliding cooperation of the slide rail groove and the guide rail. The lifting drive mechanism controls the sealing top cover to move down and close the material box to prevent the solution from splashing out due to inertia. When the vertical plate is fully engaged with the insertion slot, the carrying tray reaches the working position. At this time, the sealing top cover is raised and the refrigeration unit is started to efficiently cool and freeze the solution. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the load-bearing pallet and box body of this utility model; Figure 3 This is a front sectional view of the present invention. Figure 4 For the present utility model Figure 3Enlarged structural diagram at point A in the middle.
[0014] Figure label: 1. Cabinet; 101. Insertion slot; 102. Sealing interface; 2. Refrigeration unit; 3. Supporting tray; 301. Horizontal plate; 302. Vertical plate; 303. Slide rail groove; 304. Sealing baffle; 305. Handle; 4. Material box; 5. Guide rail; 6. Sealing top cover; 7. Lifting drive mechanism; 701. Movable frame; 702. Lug; 703. Telescopic cylinder; 704. Guide upright; 8. Horizontal guide rod; 9. Sealing ring; 10. Suction pipe; 11. Vacuum pump; 12. Vent pipe; 13. Control valve; 14. Cold trap; 15. Water collection box; 16. Limit block. Detailed Implementation
[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example
[0019] See attached document Figure 1-4 A freeze dryer for producing fish skin collagen peptides includes a housing 1, inside which is a refrigeration unit 2 and a detachable support tray 3. The support tray 3 consists of a horizontal plate 301 and a vertical plate 302 integrally formed at one end. The horizontal plate 301 has horizontally extending slide rail grooves 303 on both sides, and its top is used to support a material box 4 with an open top. The slide rail grooves 303 on both sides are in sliding engagement with guide rails 5 fixedly arranged on both sides of the inner wall of the housing 1. The vertical plate 302 matches the insertion slot 101 provided on one side of the housing 1. The housing 1 also has a sealing top cover 6 adapted to the open top of the material box 4. The top of the sealing top cover 6 is connected to a lifting drive mechanism 7, which is in sliding engagement with two horizontal guide rods 8 symmetrically arranged inside the housing 1.
[0020] In this embodiment, the fish skin collagen peptide solution is injected into the material box 4 and placed on the horizontal plate 301. The box 1 is pushed forward by the sliding engagement of the slide rail groove 303 and the guide rail 5. During this process, the lifting drive mechanism 7 controls the sealing top cover 6 to move down and cover the material box 4 to prevent the solution from splashing out due to inertia caused by changes in the pushing speed or when it stops. When the vertical plate 302 is fully engaged with the insertion slot 101, the carrying tray 3 reaches the working position. At this time, the lifting drive mechanism 7 lifts the sealing top cover 6 to remove it from the material box 4. The refrigeration unit 2 is started in the uncovered state, which can cool and freeze the solution more efficiently. After the material is completely frozen, the low temperature condition is maintained to allow the ice crystals to sublimate, thereby achieving dehydration and drying.
[0021] A sealing baffle 304 is integrally formed on the side of the vertical plate 302 away from the horizontal plate 301. The area of the sealing baffle 304 is larger than that of the horizontal plate 301 and completely covers it. The sealing baffle 304 matches the sealing interface 102 connected to the insertion slot 101 provided on one side of the housing 1. A sealing ring 9 is provided on the side of the sealing baffle 304 facing the horizontal plate 301. An air extraction pipe 10 is connected to the housing 1. The air extraction pipe 10 is connected to the air inlet of the vacuum pump 11.
[0022] In this embodiment, when the vacuum pump 11 is started, the inside of the box 1 can be evacuated to a near-vacuum state through the suction pipe 10, thereby accelerating the sublimation of ice crystals and improving the drying efficiency. At the same time, under the negative pressure, the sealing baffle 304 is pushed by atmospheric pressure to press against the sealing interface 102 and achieves a reliable seal through the sealing ring 9. During this process, the carrying tray 3 can be fixed without the need for an additional locking device.
[0023] A handle 305 is installed on the side of the sealing baffle 304 away from the vertical plate 302; a vent pipe 12 is connected to the top of the box 1, and a control valve 13 is installed on the vent pipe 12.
[0024] In this embodiment, when performing vacuuming, the control valve 13 is in the closed state to isolate the inside of the chamber 1 from the outside atmosphere. After the fish skin collagen peptides are dehydrated, the control valve 13 is opened and the outside gas is introduced into the chamber 1 through the vent pipe 12 to restore the pressure inside the chamber 1 to normal pressure. At this time, the carrying tray 3 can be pulled out from the chamber 1 with the handle 305 and the material box 4 can be taken away.
[0025] The lifting drive mechanism 7 includes a movable frame 701. The top of the movable frame 701 is symmetrically provided with mounting lugs 702. Each mounting lug 702 has a first guide hole and is slidably engaged with two horizontal guide rods 8. A telescopic cylinder 703 is installed at the top center of the movable frame 701. The piston rod of the telescopic cylinder 703 passes vertically downward through the movable frame 701 and is fixedly connected to the top center of the sealing top cover 6. Guide rods 704 are symmetrically fixed at the top of the sealing top cover 6. Each guide rod 704 is slidably engaged with the corresponding second guide hole on the movable frame 701.
[0026] In this embodiment, the telescopic cylinder 703 is activated to drive the sealing top cover 6 to rise and fall. The stability of the lifting movement is ensured by the sliding cooperation between the guide rod 704 and the second guide hole. At the same time, the entire lifting drive mechanism 7 can move horizontally by the sliding cooperation between the first guide hole and the horizontal guide rod 8, so that when the sealing top cover 6 and the material box 4 are closed, it can move horizontally synchronously.
[0027] In this embodiment, the water vapor generated during the sublimation process is captured by the cold trap 14 and condensed into frost. After the carrying tray 3 is removed from the box 1 and the pressure is restored to normal, the frost layer melts into liquid water and drips into the water collection box 15 below for collection.
[0028] The top of the horizontal plate 301 is provided with four limiting blocks 16, which together form a limiting area that matches the outer contour of the material box 4, and are used to position and limit the material box 4 placed therein.
[0029] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
[0030] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art.
Claims
1. A freeze dryer for producing fish skin collagen peptides, characterized in that: Includes a housing (1), inside which a refrigeration unit (2) and a detachable support tray (3) are provided. The carrying tray (3) is composed of a horizontal plate (301) and a vertical plate (302) integrally formed at one end. The horizontal plate (301) has slide rail grooves (303) extending in the horizontal direction on both sides, and its top is used to support the open top of the material box (4). The slide rail grooves (303) on both sides are in sliding fit with the guide rails (5) fixedly provided on both sides of the inner wall of the box (1). The vertical plate (302) matches the insertion slot (101) provided on one side of the box (1). The box (1) is also provided with a sealed top cover (6) that is compatible with the top opening of the material box (4). The top of the sealed top cover (6) is connected to a lifting drive mechanism (7). The lifting drive mechanism (7) is slidably engaged with two horizontal guide rods (8) symmetrically arranged inside the box (1).
2. The freeze dryer for producing fish skin collagen peptides according to claim 1, characterized in that: A sealing baffle (304) is integrally formed on the side of the vertical plate (302) away from the horizontal plate (301). The area of the sealing baffle (304) is larger than that of the horizontal plate (301) and completely covers it. The sealing baffle (304) matches the sealing interface (102) connected to the insertion slot (101) provided on one side of the box body (1). A sealing ring (9) is provided on the side of the sealing baffle (304) facing the horizontal plate (301). The housing (1) is connected to an air extraction pipe (10), which is connected to the air inlet of the vacuum pump (11).
3. The freeze dryer for producing fish skin collagen peptides according to claim 2, characterized in that: A handle (305) is installed on the side of the sealing baffle (304) away from the vertical plate (302). The top of the box (1) is connected to a vent pipe (12), and a control valve (13) is installed on the vent pipe (12).
4. The freeze dryer for producing fish skin collagen peptides according to claim 1, characterized in that: The lifting drive mechanism (7) includes a movable frame (701). The movable frame (701) has symmetrical mounting lugs (702) on its top. Each mounting lug (702) has a first guide hole and is slidably engaged with two horizontal guide rods (8). A telescopic cylinder (703) is installed at the top center of the movable frame (701). The piston rod of the telescopic cylinder (703) passes vertically downward through the movable frame (701) and is fixedly connected to the top center of the sealing top cover (6). Guide rods (704) are symmetrically fixed at the top of the sealing top cover (6). Each guide rod (704) is slidably engaged with the corresponding second guide hole on the movable frame (701).
5. The freeze dryer for producing fish skin collagen peptides according to claim 1, characterized in that: A cold trap (14) is provided at the top of the box (1), and a water collection box (15) is provided at the corresponding position at the bottom.
6. The freeze dryer for producing fish skin collagen peptides according to claim 1, characterized in that: The top of the horizontal plate (301) is provided with four limiting blocks (16), which together form a limiting area that matches the outer contour of the material box (4).