A freeze dryer inlet and outlet push rod mechanism

Abstract

The invention discloses a freeze dryer inlet and outlet push rod mechanism, comprising a guide rail assembly, a guide frame slidably arranged on the guide rail assembly, a rack and a push rod arranged on the guide frame, and a driving mechanism for driving the rack to reciprocate connected to the rack. The invention has the advantages of simple structure, small space occupation, etc.

Description

Technical Field

[0001] The invention relates to a freeze dryer, in particular to a material inlet and outlet push rod mechanism for the freeze dryer. Background Art

[0002] The common bottle push rod actuator components of the automatic feeding and discharging system of the freeze dryer have the following defects: 1. The linear push mechanism has a long stroke, and a long linear push rod will be configured in front of the RABS, which greatly limits the layout of the plant and is not conducive to the operator to operate with gloves; 2. Generally, a bellows needs to be configured for isolation. The bellows is not clean, and there is a great risk of leakage for the isolator; 3. Single-row push feeding and whole-plate push feeding cannot be carried out synchronously, which greatly reduces the feeding speed. For this reason, the applicant proposes a freeze dryer high-speed feeding system and a feeding method thereof, which is provided with a first push mechanism for pushing the bottle body in the conveying channel to the feeding platform and a second push mechanism for pushing the bottle body on the feeding platform to the freeze dryer plate layer. The two push mechanisms can operate synchronously, so that the overall length is shortened and the feeding speed is greatly accelerated. In this technical solution, the second push mechanism adopts a rocker arm mechanism to execute the push rod to push forward, which has a relatively complex structure and occupies a large space. It is more suitable for the production of large freeze dryers. In the case of a small door of the freeze dryer, its use will be restricted. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a freeze dryer inlet and outlet push rod mechanism which has a simple structure and occupies little space.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A freeze dryer inlet and outlet push rod mechanism comprises a guide rail assembly, a guide frame is slidably arranged on the guide rail assembly, a rack and a push rod are arranged on the guide frame, and the rack is connected to a driving mechanism for driving the rack to move back and forth.

[0006] As a further improvement of the above technical solution: the guide rail assembly is arranged between the freeze dryer conveying channel and the freeze dryer plate layer.

[0007] As a further improvement of the above technical solution: the guide rail assembly includes an inner guide rail and an outer guide rail, the inner guide rail and the outer guide rail are respectively arranged on the inner and outer sides of the small door of the freeze dryer, and a reversible transmission mechanism is provided between the rack and the driving mechanism.

[0008] As a further improvement of the above technical solution: the transmission mechanism includes a driving wheel, a driven wheel, and a synchronous belt wound around the driving wheel and the driven wheel, the driving wheel is connected to the driving mechanism, the distance between the driven wheel and the driving wheel is adjustable, and the outer surface of the synchronous belt is evenly provided with a plurality of first transmission teeth and meshes with the rack.

[0009] As a further improvement of the above technical solution: the driving wheel is arranged on a fixed plate, the driven wheel is arranged on a movable plate, the fixed plate and the movable plate are butt-jointed and the joint is arc-shaped.

[0010] As a further improvement of the above technical solution: a plurality of second transmission teeth are evenly arranged on the inner surface of the synchronous belt, and the driving wheel and the driven wheel are both gears and mesh with the inner surface of the synchronous belt.

[0011] As a further improvement of the above technical solution: the first transmission teeth and the second transmission teeth are arranged alternately.

[0012] As a further improvement of the above technical solution: the driving mechanism includes a rotating driving member, a reducer, a reversing gear box and a driving rod which are connected in sequence, and the transmission mechanism is connected to the driving rod.

[0013] As a further improvement of the above technical solution: guide grooves are provided on the upper and lower sides of the guide rail assembly, and the guide frame is provided with upper and lower groups of guide wheel assemblies, the upper guide wheel assembly is positioned in the upper guide groove, and the lower guide wheel assembly is positioned in the lower guide groove, and the guide wheel assembly includes a first guide wheel with multiple axes horizontally arranged and a second guide wheel with multiple axes vertically arranged.

[0014] As a further improvement of the above technical solution: the guide frame is provided with a swing arm for driving the push rod to swing up and down.

[0015] Compared with the prior art, the advantages of the present invention are as follows: the freeze dryer inlet and outlet push rod mechanism disclosed in the present invention is provided with a guide frame that can slide along the guide rail assembly on the guide rail assembly, the push rod is arranged on the guide frame, and a rack is arranged on the guide frame, the rack is driven to reciprocate by the driving mechanism, and then the guide frame and the push rod are driven to reciprocate by the rack, the structure is simple and compact, occupies less space, and is convenient for crossing gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the inlet and outlet push rod mechanism of the freeze dryer of the present invention.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the transmission mechanism in the present invention.

[0018] Figure 3It is a schematic diagram of the three-dimensional structure of the guide wheel assembly in the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the guide rail assembly in the present invention.

[0020] Figure 5 It is a structural schematic diagram of the present invention when pushing materials.

[0021] Figure 6 It is a structural schematic diagram of the present invention when the material is recovered after pushing.

[0022] The numbers in the figure represent: 1. push rod; 2. guide rail assembly; 21. inner guide rail; 22. outer guide rail; 23. guide groove; 3. small door; 4. guide frame; 41. swing arm; 42. swing arm driving member; 5. transmission mechanism; 51. driving wheel; 52. driven wheel; 53. synchronous belt; 54. rack; 55. first transmission tooth; 56. second transmission tooth; 57. fixed plate; 58. movable plate; 6. driving mechanism; 61. rotating driving member; 62. reducer; 63. reversing gear box; 64. driving rod; 7. guide wheel assembly; 71. first guide wheel; 72. second guide wheel; 81. freeze dryer housing; 82. freeze dryer plate layer; 83. freeze dryer conveying channel. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Figures 1 to 6 An embodiment of the freeze dryer inlet and outlet push rod mechanism of the present invention is shown. The freeze dryer inlet and outlet push rod mechanism of this embodiment includes a guide rail assembly 2, a guide frame 4 is slidably provided on the guide rail assembly 2, a rack 54 and a push rod 1 are provided on the guide frame 4, and the rack 54 is connected to a driving mechanism 6 for driving the rack 54 to move back and forth.

[0025] The freeze dryer inlet and outlet push rod mechanism has a guide frame 4 that can slide along the guide rail assembly 2, a push rod 1 is arranged on the guide frame 4, and a rack 54 is arranged on the guide frame 4. The rack 54 is driven by a driving mechanism 6 to reciprocate, and then the rack 54 drives the guide frame 4 and the push rod 1 to reciprocate. The structure is simple and compact, takes up little space, and is easy to cross the gap.

[0026] In this embodiment, the guide rail assembly 2 is arranged between the freeze dryer conveying channel 83 and the freeze dryer plate layer 82, that is, the freeze dryer inlet and outlet push rod mechanism of the present invention is used as the second pushing mechanism. After the bottle body on the freeze dryer conveying channel 83 is pushed to the feeding platform by the first pushing mechanism, the freeze dryer inlet and outlet push rod mechanism of the present invention pushes the bottle body on the feeding platform to the freeze dryer plate layer 82.

[0027] Further, in this embodiment, the guide rail assembly 2 includes an inner guide rail 21 and an outer guide rail 22, which are respectively arranged on the inner and outer sides of the small door 3 of the freeze dryer, and a reversible transmission mechanism 5 is arranged between the rack 54 and the driving mechanism 6. The inner guide rail 21 and the outer guide rail 22 are respectively arranged on the inner and outer sides of the small door 3 of the freeze dryer, so as not to interfere with the lifting and closing process of the small door 3. The transmission mechanism 5 adopts a reversible structure. When the small door 3 needs to be closed, it is turned to the outside of the small door 3. When the small door 3 is opened, the transmission mechanism 5 is turned to the inside of the small door 3 and extended into the freeze dryer, reducing the required length of the feeding and discharging push rod mechanism. At the same time, it can be used for transmission to realize pushing the bottle body onto the freeze dryer plate layer 82. The rack 54 is convenient for crossing the gap between the inner guide rail 21 and the outer guide rail 22.

[0028] Furthermore, in this embodiment, the transmission mechanism 5 includes a driving wheel 51, a driven wheel 52, and a synchronous belt 53 wound around the driving wheel 51 and the driven wheel 52. The driving wheel 51 is connected to the driving mechanism 6, and the distance between the driven wheel 52 and the driving wheel 51 is adjustable. The outer surface of the synchronous belt 53 is evenly provided with a plurality of first transmission teeth 55 and meshes with the rack 54. Compared with the conventional belt transmission mechanism, the transmission mechanism 5 has an adjustable distance between the driven wheel 52 and the driving wheel 51, and the driven wheel 52 can be turned relative to the driving wheel 51 in combination with the bendable and deformable characteristics of the synchronous belt 53 itself. On the other hand, the first transmission teeth 55 are arranged on the outer surface of the synchronous belt 53, and the synchronous belt 53 can drive the rack 54 to move back and forth during its reciprocating operation. It is novel, ingenious, compact in structure, and takes up little space. Of course, in other embodiments, the transmission mechanism 5 can also directly use gears to drive the rack 54 to move through the gears. The disadvantage is that the length of the rack 54 needs to be increased accordingly, which is not conducive to reducing the required length of the feeding and discharging push rod mechanism.

[0029] Furthermore, in this embodiment, the driving wheel 51 is arranged on a fixed plate 57, and the driven wheel 52 is arranged on a movable plate 58, and the fixed plate 57 and the movable plate 58 are butted and the joint is arc-shaped. The fixed plate 57 and the movable plate 58 are butted with an arc-shaped joint, which can not only ensure the overall stability of the transmission mechanism 5 during the transmission process, but also facilitate the flipping of the driven wheel 52 relative to the driving wheel 51.

[0030] Furthermore, in this embodiment, a plurality of second transmission teeth 56 are evenly arranged on the inner surface of the synchronous belt 53, and the driving wheel 51 and the driven wheel 52 are gears and mesh with the inner surface of the synchronous belt 53. The second transmission teeth 56 are arranged on the inner surface of the synchronous belt 53, and the driving wheel 51 and the driven wheel 52 are gears, so that the transmission mechanism 5 is not easy to slip, has higher reliability, and is conducive to keeping the inner and outer surfaces of the synchronous belt 53 in synchronous motion.

[0031] As a preferred technical solution, in this embodiment, the first transmission teeth 55 and the second transmission teeth 56 are arranged alternately, so that the synchronous belt 53 runs more stably and smoothly, and its own structural strength is also higher.

[0032] Furthermore, in this embodiment, the driving mechanism 6 includes a rotating driving member 61 (such as a motor, etc.), a speed reducer 62, a reversing gear box 63 and a driving rod 64 connected in sequence, and the transmission mechanism 5 is connected to the driving rod 64, specifically, the driving wheel 51 is connected to the driving rod 64. During operation, the rotating driving member 61 drives the driving rod 64 to rotate after passing through the speed reducer 62 and the reversing gear box 63, and the driving rod 64 drives the driving wheels 51 at both ends to rotate, and the driving wheel 51 drives the rack 54 to reciprocate through the synchronous belt 53, keeping the two ends of the push rod 1 moving synchronously, thereby driving the push rod 1 to complete the loading and unloading. The driving mechanism 6 does not need to follow the push rod 1 into the freeze dryer, which avoids the driving mechanism 6 from polluting the clean environment in the freeze dryer, and at the same time reduces the space occupied by the loading and unloading push rod mechanism.

[0033] Furthermore, in this embodiment, both upper and lower sides of the guide rail assembly 2 are provided with guide grooves 23, and the guide frame 4 is provided with upper and lower groups of guide wheel assemblies 7, the upper guide wheel assembly 7 is positioned in the upper guide groove 23, and the lower guide wheel assembly 7 is positioned in the lower guide groove 23, and the guide wheel assembly 7 includes a plurality of first guide wheels 71 with axes arranged horizontally and a plurality of second guide wheels 72 with axes arranged vertically. The guide wheel assembly 7 facilitates the guide frame 4 to cross the gap between the inner guide rail 21 and the outer guide rail 22, and can limit the displacement of the guide frame 4 in the up-down direction and the left-right direction, so as to ensure that the guide frame 4 only moves back and forth along the guide rail assembly 2, and the structure is stable and reliable.

[0034] As a preferred technical solution, in this embodiment, a swing arm 41 is provided on the guide frame 4 for driving the push rod 1 to swing up and down. When the swing arm 41 drives the push rod 1 to swing up and down, the height of the push rod 1 changes. When the push rod 1 is in a high position, the bottle body can pass under the push rod 1. When it is in a low position, the push rod 1 can push the bottle body to feed. The swing arm 41 is driven to swing by a swing arm driving member 42. The swing arm driving member 42 can be, for example, a vertical telescopic structure, a lifting structure, or a rotating structure.

[0035] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A freeze dryer inlet and outlet push rod mechanism, characterized in that: The invention comprises a guide rail assembly (2), wherein a guide frame (4) is slidably mounted on the guide rail assembly (2), wherein a rack (54) and a push rod (1) are mounted on the guide frame (4), wherein the rack (54) is connected to a driving mechanism (6) for driving the rack (54) to reciprocate, wherein the driving mechanism (6) is located outside a freeze dryer housing (81); the guide rail assembly (2) is arranged between a freeze dryer conveying channel (83) and a freeze dryer plate layer (82); the guide rail assembly (2) comprises an inner guide rail (21) and an outer guide rail (22), wherein the inner guide rail (21) is provided with a plurality of guide rails, ... ) and an outer guide rail (22) are respectively arranged on the inner and outer sides of the small door (3) of the freeze dryer, and a reversible transmission mechanism (5) is arranged between the rack (54) and the driving mechanism (6); the transmission mechanism (5) comprises a driving wheel (51), a driven wheel (52), and a synchronous belt (53) wound around the driving wheel (51) and the driven wheel (52), the driving wheel (51) is connected to the driving mechanism (6), and the outer surface of the synchronous belt (53) is evenly provided with a plurality of first transmission teeth (55) and meshes with the rack (54).

2. The freeze dryer inlet and outlet push rod mechanism according to claim 1, characterized in that: The distance between the driven wheel (52) and the driving wheel (51) is adjustable.

3. The freeze dryer inlet and outlet push rod mechanism according to claim 2, characterized in that: The driving wheel (51) is arranged on a fixed plate (57), and the driven wheel (52) is arranged on a movable plate (58). The fixed plate (57) and the movable plate (58) are butt-jointed and the joint is arc-shaped.

4. The freeze dryer inlet and outlet push rod mechanism according to claim 2, characterized in that: The inner surface of the synchronous belt (53) is evenly provided with a plurality of second transmission teeth (56); the driving wheel (51) and the driven wheel (52) are both gears and mesh with the inner surface of the synchronous belt (53).

5. The freeze dryer inlet and outlet push rod mechanism according to claim 4, characterized in that: The first transmission teeth (55) and the second transmission teeth (56) are arranged alternately.

6. The freeze dryer inlet and outlet push rod mechanism according to any one of claims 1 to 5, characterized in that: The driving mechanism (6) comprises a rotating driving member (61), a speed reducer (62), a reversing gear box (63) and a driving rod (64) which are connected in sequence, and the transmission mechanism (5) is connected to the driving rod (64).

7. The freeze dryer inlet and outlet push rod mechanism according to any one of claims 1 to 5, characterized in that: The guide rail assembly (2) is provided with guide grooves (23) on both upper and lower sides, and the guide frame (4) is provided with upper and lower groups of guide wheel assemblies (7), the upper guide wheel assembly (7) is positioned in the upper guide groove (23), and the lower guide wheel assembly (7) is positioned in the lower guide groove (23), and the guide wheel assembly (7) comprises a first guide wheel (71) with a plurality of axes arranged horizontally, and a second guide wheel (72) with a plurality of axes arranged vertically.

8. The freeze dryer inlet and outlet push rod mechanism according to any one of claims 1 to 5, characterized in that: The guide frame (4) is provided with a swing arm (41) for driving the push rod (1) to swing up and down.

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