WO2014117690A2 - Freeze-drying machine - Google Patents

Abstract

A freeze-drying machine is disclosed. The machine comprises a freeze-drying tank (7) and a bottle in/out component. A set of ascending/descending plate-surfaces is provided inside said tank (7), said set comprising multiple freeze-drying plate-surfaces (71) on which bottles can be disposed. The bottle in/out component comprises a drive mechanism, a pull-push rod (3) driven by the drive mechanism to make reciprocating linear movement about two sides of the free-drying plate-surfaces (71), and a push-pull member (4) used for pushing in and pulling out bottles, the push-pull member (4) connecting to and detaching from said push-pull rod (3) by means of a clutch structure. The invention has the advantages of being simple in structure, low in cost, occupying little space, being safe and reliable, and preventing bottle breakage.

Description

 Freeze dryer

[Technical Field]

 The invention mainly relates to the field of food and medical packaging machinery, and particularly relates to a lyophilizer.

 【Background technique】

 The lyophilizer is used to lyophilize the filled bottle, which mainly includes the conveyor belt, the inlet and outlet mechanism, the lyophilization box and the cold trap. The entry and exit mechanism is used to transport the bottles from the conveyor belt to the lyophilization box and return the bottles in the lyophilization box to the conveyor belt. The lyophilization box is provided with a plurality of lyophilized sheets for placing the bottles, and the plurality of lyophilized sheets are vertically arranged and movable up and down in the lyophilizer. A rubber stopper is added to the bottle which is fed into the lyophilized layer by the inlet and outlet mechanism, and the rubber stopper is only half inserted. After the bottle is lyophilized in the lyophilization box, the rubber stopper is completely pressed by the lyophilized layer of the upper layer. Into the bottle.

 The existing lyophilizer, such as the lyophilizer disclosed in US Pat. No. 7,695,230, the inlet and outlet mechanism includes two push rods and a rotatable push-pull plate disposed at the ends of the two push rods. When the bottle is discharged, the push-pull plate is first rotated to a horizontal state, The push rod enters the freeze-drying box with the push-pull plate and passes over the bottle on the freeze-dried plate layer; when the push-pull plate reaches the push-pull plate support table behind the freeze-dried plate layer, the push-pull plate is rotated to a straight state. Pull the bottle out of the lyophilized layer. The inadequacies of this bottle-feeding mechanism are: Since a small number of rubber plugs and bottles are bonded to the bottom of the upper layer of the lyophilized layer during the delamination of the lyophilized sheet, when the push rod is pushed with the push bottle When the plate enters the lyophilization box, the bottle bonded to the bottom of the upper lyophilized layer is broken. In the European patent of EP0782686B1, a pusher component consisting of a pusher and a pusher plate is arranged on the front and rear of the freeze-drying box, a pusher component in front of the freeze-drying box is used for feeding the bottle, and a pusher component behind the freeze-drying box is provided. For the bottle, so that the push rod does not have to pass over the bottle, so as to avoid crushing the bottle adhered to the bottom of the lyophilized layer; however, the bottle-feeding mechanism needs to be provided with two front and rear pusher parts. The structure is complicated, the space is large, the cost is high, and in order to avoid interference with the push-back bottle parts, the cold trap can only be set to the side of the freeze-drying box, which causes the occupied space of the whole lyophilizer to further increase.

[Summary of the Invention]

 The technical problem to be solved by the present invention is to provide a lyophilizer with simple structure, low cost, small space occupation, safety and reliability, and avoiding broken bottles.

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

 A lyophilizer comprising a lyophilization box and an inlet and outlet bottle component, wherein the lyophilization box is provided with a slab group capable of lifting and lowering, the slab group comprising a plurality of lyophilized slabs for placing bottles, The inlet and outlet bottle member comprises a driving mechanism, a push-pull rod driven by the driving mechanism to reciprocate linearly on both sides of the freeze-dried plate layer, and a push-pull member for pushing the bottle into and out of the bottle, and the push-pull member passes through a clutch structure Realize the connection and separation with the push-pull rod.

As a further improvement of the present invention - The clutch structure includes a jack disposed at both ends of the push-pull member, a latch disposed on the push-pull rod, and a linkage for driving the plug to be inserted into or disengaged from the jack.

 The linkage includes a gear and a rack that mesh with the transmission, and a control mechanism for driving the gear to reciprocate, the rack being disposed on the latch.

 The control mechanism comprises a driving cylinder, a center push rod and a connecting rod, wherein the central shaft of the gear is fixedly connected with an intermediate rod extending radially to the gear, one end of the connecting rod is hinged to the extended end of the intermediate rod, and the connecting rod The other end of the rod is hinged to the end of the center push rod, which is driven by the drive cylinder for reciprocating linear motion.

 The push rod is hollow inside, and the center push rod is sleeved in the push rod.

 A push-pull member support table is fixed in the lyophilization box, and the push-pull member support table is located behind the lyophilized plate layer, and the push-pull member is supported on the push-pull member support table when separated from the push-pull rod.

 The ply set further includes a base ply for passing the push-pull member.

 The push-pull rod comprises a push-pull rod body and a push-pull head fixed to one end of the push-pull rod body, and a lower portion of the push-pull head is provided with a guide groove for slidingly engaging with the guide rails on both sides of the freeze-drying plate layer.

 The bottom of the push-pull member is provided with a supporting roller.

 Compared with the prior art, the invention has the advantages that: the lyophilizer of the invention has the advantages of simple structure, low cost and small occupied space; since the push-pull member is connected and separated from the push-pull rod through a clutch structure, it can be out The push-pull piece is sent to the rear of the lyophilized layer before the bottle, and then the push-pull rod is separated from the push-pull member and exits the lyophilization box. When the bottle is pushed out, the push-pull rod is connected to the lyophilization box and connected to the push-pull member, and the lyophilized layer can be placed on the lyophilized layer. The bottle is pulled out; thus, the push-pull rod enters the freeze-drying box when it is out of the bottle. Since there is no push-pull member, the bottle adhered to the bottom of the freeze-dried layer is not broken, which is safe and reliable.

[Description of the Drawings]

 Figure 1 is a schematic top plan view of the present invention.

 2 is a schematic view showing a partial left side view of the present invention.

 Figure 3 is a partial top plan view of the present invention when the pin is disengaged from the socket.

 Figure 4 is a partial top plan view showing the insertion of the pin into the jack of the present invention.

 Figure 5 is a schematic view showing the structure of the push-pull rod pushing the bottle from the conveyor belt to the transition plate with the push-pull member in the present invention.

 Figure 6 is a schematic view showing the structure of the push-pull rod pushing the bottle from the transition plate to the lyophilized plate layer with the push-pull member in the present invention. Figure 7 is a schematic view showing the structure of the push-pull rod separating the push-pull member from the push-pull member and exiting the freeze-drying box after the push-pull rod is sent to the push-pull member support table.

Figure 8 is a schematic view showing the structure in which the push-pull rod is connected to the lyophilization box and the push-pull member, and the bottle is pulled out from the lyophilized sheet layer. Legend: 1, push-pull support table; 2, linear module; 21, slide; 3, push-pull rod; 31, push-pull head; 311, guide groove; 4, push-pull member; 41, support roller; 6, transition plate; 7, freeze-drying box; 71, freeze-dried plate layer; 72, base plate layer; 73, guide rail; 81, jack; 82, latch; 83, gear; 84, rack; 85, drive Cylinder; 86, center push rod; 87, connecting rod; 88, intermediate rod; 9, bottle. 【detailed description】

 The invention will be further described in detail below with reference to the drawings and specific embodiments.

 As shown in FIG. 1 and FIG. 5, the lyophilizer of the present invention comprises a conveyor belt 5, a transition plate 6, a lyophilization box 7 and an inlet and outlet bottle member, and the lyophilization box 7 is provided with a slab group capable of lifting and lowering, a slab layer The group comprises a plurality of lyophilized plies 71 arranged vertically for placing the bottles 9. The inlet and outlet bottle member includes a driving mechanism, a push-pull rod 3 which is driven by the driving mechanism to reciprocate linearly on both sides of the freeze-dried plate layer 71, and a push-pull member 4 for pushing the bottle into and out of the bottle. The driving mechanism is a linear module 2, and the push-pull rod 3 is fixedly mounted on the sliding seat 21 of the linear module 2. The push-pull rods 3 are two, arranged in parallel on both sides of the freeze-dried plate layer 71, and each push-pull rod 3 is driven by a corresponding linear module 2, and driven by the linear module 2, the two push-pull rods 3 are respectively Both sides of the freeze-dried plate layer 71 are reciprocating linear motion. The push-pull member 4 is a push-pull plate with a supporting roller 41 at the bottom, which is located between the two push-pull rods 3, and can be connected or separated from the push-pull rod 3 through the clutch structure, and the push-pull member 4 can be connected with the push-pull rod 3 The reciprocating linear motion of the push-pull rod 3 is used to push the bottle into the bottle or pull the bottle out of the bottle. Since the push-pull member 4 is connected and separated from the push-pull rod 3 through a clutch structure, the push-pull member 4 can be sent to the rear of the lyophilized sheet layer 71 before the bottle is taken out, and then the push-pull rod 3 is separated from the push-pull member 4 and is released from the freeze. Dry box 7, when the bottle is pulled out, the push-pull rod 3 is connected to the freeze-drying box 7 and connected to the push-pull member 4, and the bottle 9 on the freeze-dried layer 71 can be pulled out; thus, the push-pull rod 3 enters the freeze-drying box when the bottle is discharged. In the process of 7 , since the push-pull member 4 is not provided, the bottle 9 adhered to the bottom of the lyophilized plate layer 71 is not broken, which is safe and reliable.

 As shown in Fig. 7, in the present embodiment, a push-pull member support table 1 is fixed in the freeze-drying box 7, and the push-pull member support table 1 is fixed to the inner wall of the freeze-drying box 7 and located behind the freeze-dried plate layer 71. The push-pull member 4 is supported on the push-pull member support table 1 when separated from the push-pull rod 3.

 As shown in Fig. 7, in the embodiment, the ply group further includes a base plate layer 72 for passing the push-pull member 4, and the bottom plate layer 72 is disposed below the lowermost freeze-dried plate layer 71. When entering the bottle, when all of the lyophilized plies 71 are filled with the bottle, the base ply 72 is moved to a position flush with the transition plate 6, and the push-pull rod 3 is no longer carried by the push-pull member 4 from the conveyor belt 5. Pushing the bottle, the push-pull member 4 is directly pushed through the base plate layer 72, and the push-pull member 4 is sent to the push-pull member support table 1.

In this embodiment, the push-pull rod 3 includes a push-pull rod body mounted on the sliding block 21 of the linear module 2 and a push-pull head 31 fixed to one end of the push-pull rod body. As shown in FIG. 2, the lower part of the push-pull head 31 is provided with a guiding slot. 311, a guide rail 73 is disposed on both sides of the lyophilized plate layer 71 and the base plate layer 72, and the movement of the push-pull rod 3 and the push-pull member 4 is guided and supported by the sliding fit of the guide groove 311 and the guide rail 73. As shown in FIG. 3 and FIG. 4, in the embodiment, the clutch structure includes a jack 81 disposed at two ends of the push-pull member 4, a latch 82 disposed on the push-pull rod 3, and a latch 81 for inserting or disengaging the jack 81. Linkage device. The jack 81 is opened along the length of the push-pull member 4, and the latch 82 is mounted on the push-pull head 31 and disposed perpendicular to the push-pull rod 3.

 In this embodiment, the linkage device includes a gear 83 and a rack 84 that mesh with the transmission, and a control mechanism for driving the gear 83 to reciprocate. The rack 84 is disposed on the latch 82. The gear 83 rotates to drive the rack 84 to move. The latch 82 is inserted or disengaged from the jack 81. In this embodiment, the gear 83 is a partial gear, and includes a gear body and a central shaft fixedly coupled to the gear body by a key. The central shaft is rotatably mounted on the push-pull head 31; the rack 84 and the latch 82 are an integral structure. .

 In the present embodiment, the control mechanism includes a drive cylinder 85, a center push rod 86, and a link 87. The center shaft of the gear 83 is fixedly coupled to an intermediate rod 88 extending radially to the gear 83. One end of the link 87 is hinged to the extended end of the intermediate rod 88, and the other end of the link 87 is hinged to one end of the center push rod 86. . The center push rod 86 is driven by the driving cylinder 85 to reciprocate linear motion; in this embodiment, the push rod 3 is hollow inside, and the center push rod 86 is sleeved in the push rod 3 to make the structure more compact; the driving cylinder 85 can be a cylinder or an electric motor. The cylinder, the driving cylinder 85 is fixedly mounted on the outer side of the push-pull rod 3; the other end of the center push rod 86 extends from the push-pull rod 3 port, and is connected to the piston rod of the driving cylinder 85 through a connecting member. When the driving cylinder 85 is actuated, the center push rod 86, the connecting rod 87 and the intermediate rod 88 are simultaneously actuated, thereby driving the gear 83 to rotate, and the rack 84 is moved to insert or disengage the latch 82 into the jack 81.

 The working process of the invention (see Figures 5 to 8):

 The bottle feeding process: 1. First, the push-pull rod 3 is located at an initial position outside the freeze-drying box 7, the push-pull member 4 is connected with the push-pull rod 3, and the uppermost layer of the freeze-dried sheet 71 is in a position flush with the transition plate 6 (see the figure). 5); 2. The push-pull member 4 pushes the bottle 9 on the conveyor belt 5 to the transition plate 6 row by row under the driving of the push-pull rod 3, and then pushes the bottle 9 on the transition plate 6 into the flush with the transition plate 6. On the lyophilized ply layer 71 (see Fig. 6); 3. The lyophilized ply layer 71 flush with the transition plate 6 is filled up with the bottle 9 and then moved up a distance while the lyophilized ply layer below the lyophilized ply layer 71 71 is moved up to the position flush with the transition plate 6; 4. Steps 2 and 3 are repeated until the base plate layer 72 below the lowermost freeze-dried plate layer 71 is moved up to be flush with the transition plate 6, at which time the push-pull member 4 is The bottle 9 is no longer pushed from the conveyor belt 5, but is driven by the push-pull rod 3 into the lyophilization box 7, and passes through the base plate layer 72 to reach the push-pull member support table 1; 5. The push-pull rod 3 and the push-pull member 4 Separate, push-pull rod 3 exit freeze-drying box 7 back to the initial position, and finally close the freeze-drying box 7 box door, freeze-dry Make;

The bottle discharging process: 1. First, the lowermost lyophilized layer 71 loaded with the bottle 9 is moved to be flush with the transition plate 6; 2. The push-pull rod 3 enters the lyophilization box 7 and is leveled along with the transition plate 6. The guide rails 73 on both sides of the lyophilized plate layer 71 are moved to the push-pull member support table 1 to be connected with the push-pull member 4, and then the push-pull member 4 is driven to gradually pull the bottle 9 on the freeze-dried plate layer 71 back onto the conveyor belt 5. 3. After the bottles 9 on the lyophilized layer 71 which are flush with the transition plate 6 are all pulled back onto the conveyor belt 5, the push-pull rod 3 re-sends the push-pull member 4 to the push-pull member support table 1 and pushes and pulls The piece 4 is separated from the freeze-drying box 7, Then, the lyophilized plate layer 71 flush with the transition plate 6 is moved down a distance, while the lyophilized plate layer 71 located above the lyophilized plate layer 71 is moved down to a position flush with the transition plate 6; 4. Repeating steps 2 and 3, until all the bottles 9 on all of the lyophilized plies 71 are pulled back onto the conveyor belt 5, thereby completing the entire bottle discharging process.

 The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments, and all the technical solutions falling under the inventive concept belong to the protection scope of the present invention. It should be noted that a number of modifications and adaptations of the present invention are considered to be within the scope of the present invention without departing from the principles of the invention.

Claims

Rights request 1 . A lyophilizer comprising a lyophilization box (7) and an entry and exit bottle component, wherein: the lyophilization box (7) is provided with a slab group capable of lifting and lowering, and the slab group comprises a plurality of blocks a lyophilized layer (71) for placing a bottle (9), the inlet and outlet bottle member comprising a driving mechanism, a push-pull rod (3) driven by the driving mechanism to reciprocate linearly on both sides of the lyophilized layer (71), And a push-pull member (4) for pushing the bottle into and out of the bottle, the push-pull member (4) is connected and separated from the push-pull rod (3) by a clutch structure.  2. The lyophilizer according to claim 1, wherein: the clutch structure comprises a socket (81) disposed at both ends of the push-pull member (4), and a latch (82) disposed on the push-pull rod (3) And the linkage used to drive the latch (82) into or out of the jack (81).  3. The lyophilizer according to claim 2, wherein: the linkage comprises a gear (83) and a rack (84) that mesh with the transmission, and a control mechanism for driving the gear (83) to reciprocate. The rack (84) is disposed on the latch (82).  4. The lyophilizer according to claim 3, wherein: said control mechanism comprises a driving cylinder (85), a center push rod (86) and a connecting rod (87), a central axis of said gear (83) An intermediate rod (88) extending radially to the gear (83) is fixedly connected, one end of the connecting rod (87) is hinged to the extended end of the intermediate rod (88), and the other end of the connecting rod (87) is hinged to At the end of the center push rod (86), the center push rod (86) is driven by the drive cylinder (85) to reciprocate linearly.  The lyophilizer according to claim 4, characterized in that: the push-pull rod (3) is hollow inside, and the center push rod (86) is sleeved in the push-pull rod (3).  The lyophilizer according to any one of claims 1 to 5, characterized in that: a push-pull member support table (1) is fixed in the lyophilization box (7), and the push-pull member support table (1) ) Located behind the lyophilized sheet layer (71), the push-pull member (4) is supported on the push-pull member support table (1) when separated from the push-pull rod (3).  The lyophilizer according to any one of claims 1 to 5, characterized in that the slab group further comprises a base plate layer (72) for passing the push-pull member (4).  The lyophilizer according to any one of claims 1 to 5, wherein: the push-pull rod (3) comprises a push-pull rod body and a push-pull head (31) fixed to one end of the push-pull rod body, The lower part of the push-pull head (31) is provided with a guide groove (311) for slidingly engaging with the guide rails (73) on both sides of the freeze-dried plate layer (71).  The lyophilizer according to any one of claims 1 to 5, characterized in that the bottom of the push-pull member (4) is provided with a support roller (41).