Freeze dryer electric lifting gland integrated material rack

Abstract

The utility model discloses a freeze dryer electric lifting gland integrated material shelf which comprises a fixed top plate and a base, and the fixed top plate and the base are connected through a plurality of supporting rods. A movable top plate and a plurality of bottom plates which are in linkage are arranged between the fixed top plate and the base, and the bottom plates are arranged under the movable top plate in a stacked mode; a stepping motor is fixedly installed on the fixed top plate, a lifting screw arranged in the vertical direction in a penetrating mode is arranged in a main body of the stepping motor, the bottom end of the lifting screw penetrates through the fixed top plate and then is fixedly connected with a pressing plate and a movable top plate below, and the pressing plate is fixedly connected to the movable top plate. According to the electric lifting and cap pressing integrated material frame of the freeze dryer, the problems that in the prior art, the number of accessories is large, machining, sealing and assembling are difficult, and the bottle cap pressing efficiency needs to be improved can be solved.

Description

Technical Field

[0001] This utility model relates to an integrated electric lifting and capping material rack for a freeze dryer, belonging to the field of freeze drying technology. Background Technology

[0002] A freeze dryer, also known as a vacuum freeze dryer, is a device that uses the principles of freezing and sublimation to remove moisture from an object in order to preserve it for a long time and maintain its original properties.

[0003] As attached Figure 1 As shown, existing freeze dryers generally use a manual rotation structure to press the bottle caps of vials in the material tray. By rotating the handle outside the freeze drying chamber, the lifting screw moves up and down, thereby driving the material rack pressure plate and the bottom plate to move up and down along the support rod, thus pressing the bottle caps of vials in the material tray.

[0004] However, existing technologies generally suffer from the following technical problems during use:

[0005] The system has several drawbacks: numerous components (the rotary lifting system consists of nine major parts: a rotating head, a rotating handle, a sealing turntable, a sealing ring, a rotating shaft, a lifting screw, a flange, a flange seat, a fixed top plate, and a movable top plate); difficult processing (the rotating head and sealing turntable are made of solid 304 stainless steel, and the lifting screw requires perforation and slotting, resulting in long processing time and high precision requirements); difficult sealing (the rotating handle is outside the freeze-drying chamber, while the material rack is inside, necessitating the addition of extra sealing components, and the sealing effect is significantly reduced compared to before the freeze-drying chamber was perforated); and difficult assembly (too many parts and a simple assembly sequence). The efficiency of bottle cap pressing needs to be improved.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] This utility model addresses the shortcomings of the prior art by providing an integrated electric lifting and capping material rack for freeze dryers, which solves the problems of numerous accessories, difficult processing, difficult sealing, difficult assembly, and the need to improve the cap pressing efficiency in the existing technology.

[0008] To solve the above technical problems, the present invention adopts the following technical solution:

[0009] An integrated electric lifting and capping material rack for a freeze dryer, comprising a fixed top plate and a base, which are connected by multiple support rods;

[0010] A movable top plate and multiple bottom plates are provided between the fixed top plate and the base, with the multiple bottom plates stacked and arranged directly below the movable top plate;

[0011] A stepper motor is fixedly installed on the fixed top plate. Inside the main body of the stepper motor is a lifting screw that runs vertically through the plate. The bottom end of the lifting screw passes through the fixed top plate and is fixedly connected to the pressure plate and the movable top plate below. The pressure plate is fixedly connected to the movable top plate.

[0012] Furthermore, the material rack is installed inside the freeze-drying chamber, which is then fastened to the top of the platform.

[0013] Furthermore, the support rod is set vertically, with its top end fixed to the fixed top plate by a nut, and its bottom end inserted into and fixed in the base.

[0014] Furthermore, the number of support rods is three.

[0015] Furthermore, both the movable top plate and the bottom plate are set in a horizontal direction.

[0016] Furthermore, a motor cover is fastened to the outside of the stepper motor, and a lifting screw is installed through the motor cover.

[0017] Furthermore, the movable top plate is provided with a sliding groove on its periphery, and the movable top plate is slidably connected to the support rod through the sliding groove.

[0018] Furthermore, an induction plate and a material tray are sequentially installed above the base plate, with the induction plate located between the material tray and the base plate.

[0019] Furthermore, the bottommost base plate is fixed to the support rod and positioned close to the base; adjacent base plates are connected by connecting rods except for the bottommost base plate, and the movable top plate is connected to the topmost base plate by connecting rods.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] This utility model uses a stepper motor to provide power for the vertical movement of the lifting screw. The lifting screw converts the rotational motion of the stepper motor into linear motion. During the movement, the lifting screw causes the movable top plate and multiple bottom plates to move up and down along the support rod, thereby realizing the automatic pressing of vial caps in the material tray and significantly improving the cap pressing efficiency.

[0022] This invention uses a through-type stepper motor to replace the manual rotating parts, reducing the size of the material rack rotation and lifting components. The lifting screw does not require perforation or slits, greatly reducing the processing difficulty. Since there is no need to make holes in the freeze-drying chamber, there is no need to worry about sealing issues, effectively isolating external contamination. It uses screw fixing, making assembly simple. The freeze dryer screen touch controls the stepper motor operation, and the screw rises and falls, stopping immediately upon removal, which is fast and efficient.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a material rack in the prior art;

[0025] Figure 2 This is an installation diagram of this utility model;

[0026] Figure 3 This is a three-dimensional structural view of the present invention;

[0027] Figure 4 This is the main structural view of this utility model.

[0028] In the diagram, 1-fixed top plate, 2-base, 3-support rod, 4-movable top plate, 5-bottom plate, 6-material tray, 7-sensor plate, 8-connecting rod, 9-lifting screw, 10-stepper motor, 11-motor cover, 12-pressure plate, 13-freeze-drying chamber, 14-platform. Detailed Implementation

[0029] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0030] like Figures 2-4 As shown in the figure, this utility model provides an integrated material rack for a freeze dryer with electric lifting and pressing. The material rack is installed in the inner cavity of the freeze drying chamber 13, which is fastened to the top of the platform 14.

[0031] The material rack includes a fixed top plate 1 and a base 2, which are connected by multiple support rods 3.

[0032] The support rod 3 is set vertically, and the top end of the support rod 3 is fixedly connected to the fixed top plate 1 by a nut. The bottom end of the support rod 3 is inserted into and fixed in the base 2. The number of support rods 3 is preferably three.

[0033] A movable top plate 4 and multiple bottom plates 5 are provided between the fixed top plate 1 and the base 2. The multiple bottom plates 5 are stacked and arranged directly below the movable top plate 4. Both the movable top plate 4 and the bottom plates 5 are arranged in a horizontal direction.

[0034] A stepper motor 10 is fixedly installed on the fixed top plate 1. Inside the main body of the stepper motor 10, there is a lifting screw 9 that runs through in the vertical direction. The stepper motor 10 provides power for the vertical movement of the lifting screw 9, and the lifting screw 9 converts the rotational motion of the stepper motor 10 into linear motion.

[0035] The stepper motor 10 is externally fastened with a motor cover 11, and the lifting screw 9 is installed through the motor cover 11.

[0036] The bottom end of the lifting screw 9 passes through the fixed top plate 1 and is fixedly connected to the pressure plate 12 and the movable top plate 4 below. The pressure plate 12 is fixed to the movable top plate 4. The lifting screw 9 drives the pressure plate 12 and the movable top plate 4 to rise and fall along the support rod 3.

[0037] The movable top plate 4 is provided with a sliding groove on its periphery, and the movable top plate 4 is slidably connected to the support rod 3 through the sliding groove.

[0038] An induction plate 7 and a material tray 6 are sequentially installed above the base plate 5, with the induction plate 7 located between the material tray 6 and the base plate 5.

[0039] The bottommost base plate 5 is fixed to the support rod 3 and positioned close to the base 2. Adjacent base plates 5, except for the bottommost base plate 5, are connected by connecting rods 8. The movable top plate 4 is connected to the topmost base plate 5 via connecting rods 8. The connecting rods 8 enable the movable top plate 4 and multiple base plates 5 to move in sequence.

[0040] The specific working principle of this utility model is as follows:

[0041] In this invention, a stepper motor 10 provides power for the vertical movement of the lifting screw 9. The lifting screw 9 converts the rotational motion of the stepper motor 10 into linear motion. During the movement, the lifting screw 9 causes the movable top plate 4 and multiple bottom plates 5 to move up and down along the support rod 3, thereby achieving automatic pressing of the vial caps in the material tray 6.

[0042] In this invention, the lifting screw is built into the freeze-drying chamber, eliminating the need to make openings in the freeze-drying chamber. Therefore, there is no need to worry about sealing issues, effectively isolating external contaminants.

[0043] This invention is simple to assemble and greatly reduces the difficulty of processing. The stepper motor drives the screw to lift and lower, and it can stop immediately after lifting, which is fast and efficient. By improving the pressing efficiency of dozens or even hundreds of vials of bottle caps in the material tray of the freeze dryer, the efficiency of the entire freeze drying process will be greatly improved.

[0044] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An integrated electric lifting and capping material rack for a freeze dryer, characterized in that: The material rack includes a fixed top plate (1) and a base (2), and the fixed top plate (1) and the base (2) are connected by multiple support rods (3); A movable top plate (4) and multiple bottom plates (5) are provided between the fixed top plate (1) and the base (2), and the multiple bottom plates (5) are stacked and arranged directly below the movable top plate (4); A stepper motor (10) is fixedly installed on the fixed top plate (1). Inside the main body of the stepper motor (10) is a lifting screw (9) that runs through in the vertical direction. The bottom end of the lifting screw (9) passes through the fixed top plate (1) and is fixedly connected to the pressure plate (12) below and the movable top plate (4). The pressure plate (12) is fixedly connected to the movable top plate (4).

2. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The material rack is installed in the inner cavity of the freeze-drying chamber (13), and the freeze-drying chamber (13) is fastened to the platform (14) above.

3. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The support rod (3) is set in the vertical direction. The top end of the support rod (3) is fixedly connected to the fixed top plate (1) by a nut. The bottom end of the support rod (3) is inserted into and fixed in the base (2).

4. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 3, characterized in that: The number of support rods (3) is three.

5. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The movable top plate (4) and bottom plate (5) are both set in the horizontal direction.

6. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The stepper motor (10) is externally fastened with a motor cover (11), and the lifting screw (9) is installed through the motor cover (11).

7. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The movable top plate (4) is provided with a sliding groove on its periphery, and the movable top plate (4) is slidably connected to the support rod (3) through the sliding groove.

8. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: An induction plate (7) and a material tray (6) are installed sequentially above the base plate (5), with the induction plate (7) located between the material tray (6) and the base plate (5).

9. The integrated electric lifting and capping material rack for a freeze dryer as described in claim 1, characterized in that: The bottom plate (5) is fixed to the support rod (3) and is set close to the base (2); except for the bottom plate (5), the adjacent plates (5) are connected by connecting rods (8), and the movable top plate (4) is connected to the top plate (5) by connecting rods (8).

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