Test tube film sealing equipment

Abstract

The utility model discloses test tube film sealing equipment, and relates to the technical field of test tube detection, the test tube film sealing equipment comprises a machine body, a film feeding device, a film cutting device and a film sealing device, the machine body is provided with a film feeding station, a film cutting station and a film sealing station which are arranged at intervals, and the film sealing station is used for placing test tubes; the film feeding device is arranged at the film feeding station and is used for conveying a film material to the film cutting station; the film cutting device is arranged at the film cutting station and is used for receiving the film material conveyed by the film conveying device and cutting the film material into a film sheet with a preset length; the film sealing device comprises a driving mechanism and a film sealing mechanism, the driving mechanism is arranged on the machine body, the film sealing mechanism is movably arranged under the driving of the driving mechanism so as to have a movement stroke between the film cutting station and the film sealing station, and the film sealing mechanism is used for transferring the film from the film cutting device to the film sealing station and enabling the film to be heat-sealed at the opening of the test tube. According to the technical scheme, automatic film sealing of the test tubes is achieved, and the cost for sealing and storing the test tubes is reduced.

Description

Technical Field

[0001] This utility model relates to the field of test tube testing technology, and in particular to a test tube sealing device. Background Technology

[0002] In related technologies, test tube specimens need to be preserved by sealing the opening of the test tube. Currently, the common method is to seal the test tube by adding a cap, which results in high costs for maintaining a sealed test tube. Utility Model Content

[0003] The main purpose of this invention is to provide a test tube sealing device, which aims to automate the sealing of test tubes and reduce the cost of sealing and preserving test tubes.

[0004] To achieve the above objectives, the test tube sealing device proposed in this utility model includes:

[0005] The machine body has a film feeding station, a film cutting station and a film sealing station arranged at intervals, wherein the film sealing station is used to place test tubes.

[0006] A film feeding device is provided at the film feeding station and is used to feed film material to the film cutting station;

[0007] A film cutting device, located at the film cutting station, is used to receive the film material conveyed by the film feeding device and cut the film material into film sheets of a preset length; and

[0008] A sealing device includes a driving mechanism and a sealing mechanism. The driving mechanism is disposed on the machine body. The sealing mechanism is movably disposed under the drive of the driving mechanism to have a travel between the film cutting station and the film sealing station. The sealing mechanism is used to transfer the film from the film cutting device to the film sealing station and heat-seal the film to the opening of the test tube.

[0009] In one embodiment, the film feeding device includes:

[0010] An unwinding mechanism, located at the film feeding station, includes a rotating shaft for winding the film material. The rotating shaft is rotatably configured to drive the film material to rotate, thereby unwinding the film material.

[0011] A conveying mechanism, located downstream of the unwinding mechanism, is used to receive the film material and guide the film material to move toward the film cutting device to the preset length.

[0012] In one embodiment, the conveying mechanism includes:

[0013] A clamping assembly is closably disposed between the unwinding mechanism and the film cutting device, having a closed state for clamping the film material and an open state for releasing the film material; and

[0014] A conveying assembly is disposed on the machine body and is throttle-connected to the clamping assembly. The conveying assembly is used to drive the clamping assembly in the closed state toward the film cutting device and to drive the clamping assembly in the open state away from the film cutting device.

[0015] In one embodiment, the clamping assembly includes:

[0016] The seat structure is drivenly connected to the conveying assembly to move toward or away from the film cutting device under the drive of the conveying assembly;

[0017] A support structure is provided on the base structure, and a support surface is formed on the top side of the support structure, on which the membrane material can be placed;

[0018] A pressure-film structure, movably disposed relative to the base structure, wherein at least a portion of the pressure-film structure is disposed above the support structure and has a pressure-film surface formed on one side facing the support structure; and

[0019] A drive structure is provided on the base structure and is connected to the pressure film structure for driving the pressure film structure to move toward or away from the support structure, so that the clamping assembly clamps or releases the film material.

[0020] In one embodiment, the pressure film structure includes:

[0021] Mounting portion, at least partially exposed on opposite sides of the support structure, and drively connected to the drive structure, so as to be movably disposed relative to the support structure under the drive structure; and

[0022] The pressure film part is located above the support structure in the middle. The two opposite ends of the pressure film part are a connecting end and a locking end, respectively. The connecting end and the locking end extend to the opposite sides of the support structure, so as to be arranged opposite to the mounting part.

[0023] The connecting end is rotatably connected to the mounting part so that the pressing part can be oscillating relative to the support structure, and the locking end is used to lock and release with the mounting part.

[0024] In one embodiment, the mounting portion has a locking hole facing the locking and releasing end, the locking and releasing end has a locking and releasing member, the locking and releasing member is disposed through the locking and releasing end and is retractably disposed toward the locking hole to lock or release in the locking hole;

[0025] And / or, the pressing part includes a fixing block and a pressing block, the middle part of the fixing block is spaced apart above the support structure, the opposite ends of the fixing block are the connecting end and the locking and releasing end, the pressing block is located in the middle of the fixing block and is located on the side of the fixing block facing the support structure, and is elastically connected to the fixing block.

[0026] In one embodiment, the film-cutting device includes:

[0027] A lower cutting mechanism is provided at the film cutting station. A lower cutting blade is provided on the top side of the lower cutting mechanism, and the film material can be placed on the top surface of the lower cutting blade; and

[0028] An upper cutting mechanism is located on one side of the lower cutting mechanism, and includes an upper cutting blade that can be raised and lowered relative to the lower cutting blade. The projection of the upper cutting blade on the top surface of the lower cutting blade is adjacent to the lower cutting blade.

[0029] In one embodiment, the film cutting device further includes a top film mechanism located below the upper cutter and having a top block facing the upper cutter. The top block is vertically movable relative to the lower cutter to have an initial position adjacent to the lower cutter and a cutting position away from the lower cutter.

[0030] In one embodiment, the top block has a guide hole, and the top membrane mechanism further includes:

[0031] A base, wherein the base is spaced apart below the upper cutter;

[0032] A guide shaft, wherein the guide shaft is disposed on the side of the base facing the upper cutter, extends vertically, and passes through the guide hole; and

[0033] An elastic element is sleeved on the guide shaft and connected between the top block and the base, so that the top block tends to return to the initial position.

[0034] In one embodiment, the sealing mechanism includes:

[0035] A connecting component is connected to the drive mechanism for transmission.

[0036] A hot-pressing assembly, disposed on one side of the connecting assembly, reciprocates between the film-cutting station and the film-sealing station under the drive of the connecting assembly. A hot-pressing surface is formed at the bottom of the hot-pressing assembly, and an adsorption channel communicating with the hot-pressing surface is formed within the hot-pressing assembly.

[0037] An adsorption component is disposed on one side of the hot-pressing component and passes through the adsorption channel, for adsorbing the membrane onto the hot-pressing surface so that the membrane moves synchronously with the hot-pressing component.

[0038] In one embodiment, the hot pressing assembly includes an induction coil and an induction pressure plate arranged sequentially from top to bottom. The hot pressing surface is formed on the side of the induction pressure plate opposite to the induction coil. The induction coil is provided with a first through hole, and the induction pressure plate is provided with a second through hole. The adsorption assembly can be inserted through the first through hole and the second through hole.

[0039] And / or, the adsorption assembly includes a driving member and an adsorption member, the driving member is disposed on one side of the hot pressing assembly, and the adsorption member is tractively connected to the driving member for moving through the adsorption channel under the drive of the driving member.

[0040] In one embodiment, the sealing device further includes a pressing mechanism, which is convexly connected to the driving mechanism and is used to move toward the sealing station under the drive of the driving mechanism to press the film heat-sealed in the opening of the test tube into a preset shape.

[0041] In one embodiment, the pressing mechanism includes:

[0042] A connecting seat is connected to the drive mechanism and is movably positioned above the sealing station;

[0043] A guide rod is disposed on the bottom side of the connecting seat and extends in the vertical direction; and

[0044] A pressure sleeve is movably disposed below the connecting seat. The side of the pressure sleeve facing the connecting seat is sleeved on the guide rod and elastically connected to the connecting seat. The side of the pressure sleeve opposite to the connecting seat is provided with a pressure groove.

[0045] In one embodiment, the cross-sectional area of ​​the pressing groove gradually decreases in the direction away from the groove opening.

[0046] The test tube sealing device of this utility model includes a body and a film feeding device, a film cutting device, and a sealing device disposed on the body. The sealing station is used to place the test tubes to be sealed. The film feeding device can deliver film material to the film cutting device, so that the film cutting device cuts the delivered film material into film sheets of a preset length. Then, the sealing device can transfer the film sheets from the film cutting device to the test tube to be sealed through the sealing mechanism, so that the film sheets can be heat-sealed to the opening of the test tube, thereby realizing the automated sealing of the test tubes. This allows for the sealed preservation of test tubes through test tube sealing, which helps to reduce the cost of sealed preservation of test tubes. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0048] Figure 1 A schematic diagram of a structure of an embodiment of the test tube sealing device provided by this utility model;

[0049] Figure 2 for Figure 1 Side view of the pilot tube sealing equipment;

[0050] Figure 3 for Figure 1 Top view of the pilot tube sealing equipment;

[0051] Figure 4 for Figure 1 Cross-sectional view of a pilot tube sealing device;

[0052] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0053] Figure 6 for Figure 1 A partial structural diagram of a pilot tube sealing device;

[0054] Figure 7 for Figure 6 A cross-sectional view of a partial structure of a pilot tube sealing device;

[0055] Figure 8 for Figure 6 A cross-sectional view of another partial structure of the pilot tube sealing device;

[0056] Figure 9 for Figure 8 Another cross-sectional view of another partial structure of the pilot tube sealing device;

[0057] Figure 10 for Figure 1 Another cross-sectional view of the pilot tube sealing equipment.

[0058] Explanation of icon numbers:

[0059] 100. Test tube sealing equipment; 10. Machine body; 20. Film feeding device; 21. Unwinding mechanism; 211. Rotating shaft; 22. Conveying mechanism; 221. Clamping assembly; 2211. Seat structure; 2212. Support structure; 2213. Film pressing structure; 22131. Mounting part; 22131a. Locking hole; 22132. Film pressing part; 22132a. Fixing block; 22132b. Pressing block; 22133. Locking and releasing element; 22133a. Handle part; 22133b. Connecting part; 2214. Drive structure; 222. Conveying assembly; 30. Film cutting device; 31. Lower cutting mechanism; 311. Lower cutter; 32. Upper cutter mechanism; 321. Fixing component; 322. Upper cutter; 33. Top film mechanism; 331. Top block; 332. Base; 333. Guide shaft; 334. Elastic component; 40. Sealing device; 41. Drive mechanism; 42. Sealing mechanism; 421. Connecting assembly; 422. Hot pressing assembly; 422a. Adsorption channel; 4221. Induction coil; 4222. Induction pressure plate; 423. Adsorption assembly; 4231. Drive component; 4232. Adsorption component; 43. Pressing mechanism; 431. Connecting seat; 432. Guide rod; 433. Press sleeve; 200. Test tube.

[0060] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0061] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0062] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0063] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0064] In related technologies, test tube specimens need to be preserved by sealing the opening of the test tube. Currently, the common method is to seal the test tube by adding a cap, which results in high costs for maintaining a sealed test tube.

[0065] This utility model proposes a test tube sealing device 100.

[0066] Please see Figures 1 to 10 In one embodiment of this utility model, the test tube sealing device 100 includes a body 10, a film feeding device 20, a film cutting device 30, and a sealing device 40. The body 10 has a film feeding station, a film cutting station, and a sealing station arranged at intervals. The sealing station is used to place the test tube 200. The film feeding device 20 is located at the film feeding station and is used to feed film material to the film cutting station. The film cutting device 30 is located at the film cutting station and is used to receive the film material fed by the film feeding device 20 and cut the film material into film sheets with a preset length. The sealing device 40 includes a driving mechanism 41 and a sealing mechanism 42. The driving mechanism 41 is located at the body 10. The sealing mechanism 42 is movably arranged under the drive of the driving mechanism 41 so as to have a moving stroke between the film cutting station and the sealing station. The sealing mechanism 42 is used to transfer the film sheet from the film cutting device 30 to the sealing station and heat-seal the film sheet to the opening of the test tube 200.

[0067] The film feeding device 20 is used to place a roll of film material. The roll of film material is rotatably mounted on the film feeding device 20, and the free end of the roll of film material can move a predetermined length toward the film cutting device 30 under the traction of the film feeding device 20. After receiving a predetermined length of film material, the film cutting device 30 can cut the film material to cut off a portion of the film material with the predetermined length from the roll of film material, thereby obtaining a film sheet with the predetermined length. In some embodiments, the film feeding device 20 may include an unwinding mechanism 21 for placing the roll of film material, and a conveying mechanism 22 for pulling the free end of the roll of film material. The unwinding mechanism 21 can drive the film material to rotate, thereby realizing the unwinding function of the roll of film material to quantitatively release film material with the predetermined length. The conveying mechanism 22 is located downstream of the unwinding mechanism 21 and is used to receive and pull the film material of the predetermined length to move onto the film cutting device 30.

[0068] Specifically, in this embodiment, the machine body 10 includes a substrate. A film-cutting device 30 is provided on one side of the substrate. An unwinding mechanism 21 is provided on the side of the substrate away from the film-cutting device 30. A conveying mechanism 22 is provided on the side of the substrate where the film-cutting device 30 is located. The unwinding mechanism 21 and the conveying mechanism 22 are arranged opposite to each other in the normal direction of the substrate surface. A clearance space for film material to pass through is also provided on the substrate, so that the free end of the film material roll on the unwinding mechanism 21 can pass through the clearance space and be led out to the conveying mechanism 22, and then be conveyed towards the film-cutting device 20 through the conveying mechanism 22. This arrangement can make full use of the space on both sides of the substrate to arrange the film feeding device 20. Of course, the technical solution of this utility model is not limited to this. In other embodiments, the unwinding mechanism 21 and the conveying mechanism 22 can also be arranged side by side on the same side of the substrate, or arranged in other orientations on the machine body 10, which is not limited here.

[0069] The sealing device 40 can drive the sealing mechanism 42 to move between the film cutting station and the sealing station via the drive mechanism 41, so as to transfer the film from the film cutting device 30 to the opening of the test tube 200 to be sealed, so that the film can be heat-sealed to the opening of the test tube 200 by the sealing mechanism 42, thereby realizing the automated sealing of the test tube 200. Compared with the method of sealing the test tube 200 by adding a test tube cap, the method of sealing the test tube 200 with film material to achieve the sealed preservation of the test tube 200 is beneficial to reducing the cost of sealed preservation of the test tube 200.

[0070] The driving mechanism 41 may include a first driving component and a second driving component. The first driving component is connected to the sealing mechanism 42 and is used to drive the sealing mechanism 42 to reciprocate between the film cutting station and the sealing station in the horizontal direction. This allows the previous film to be transferred from the film cutting device 30 at the film cutting station to the sealing station, so as to align the film and the opening of the test tube 200. The sealing mechanism 41 can also move back to the film cutting station from the sealing device 40 at the sealing station to align with the next film on the film cutting device 20, so as to transfer the next film. The first drive assembly can be configured as a linear drive mechanism such as a telescopic cylinder or a linear motor, or as a rotary drive mechanism such as a rotary motor; no limitation is made here. The second drive assembly is located on the machine body 10 and is connected to the first drive assembly for transmission. It is used to drive the first drive assembly to move back and forth in the vertical direction, so that the sealing mechanism 42 can move up and down relative to the film cutting station or the test tube 200 on the sealing station. This allows the sealing mechanism 42 to move downward toward the film cutting device 30 to pick up the film, and then move upward away from the film cutting device 30 to take the film away from the film cutting device 30. Alternatively, the sealing mechanism 42 can move the film material toward the opening of the test tube 200 to place the film and heat-seal it at the opening of the test tube 200, and then move upward away from the test tube 200 to move it back toward the film cutting station. The second drive assembly can be configured as a linear drive mechanism 41 such as a lead screw and nut assembly, a telescopic cylinder, or a linear motor; no limitation is made here.

[0071] Of course, the technical solution of this utility model is not limited to this. In other embodiments, the first driving component can also be used to drive the sealing mechanism 42 to move up and down in the vertical direction, and the second driving component can be used to drive the first driving component to drive the sealing mechanism 42 to move back and forth in the horizontal direction between the film cutting station and the sealing station. The specific implementation can be set according to actual needs.

[0072] Furthermore, in some embodiments, the body 10 of the test tube sealing device 100 is provided with a transfer mechanism, which can support the test tubes 200. The transfer mechanism can be set relative to the sealing station and is used to transfer the test tubes 200 to the sealing station of the body 10. Specifically, the transfer mechanism can be a rotary transfer mechanism such as a ring platform, or a linear transfer mechanism such as a transmission line; no limitation is made here. Furthermore, the transfer mechanism can have several test tube 200 placement positions, each of which can be used to place one test tube 200. The transfer mechanism can sequentially transfer several test tubes 200 to the sealing station, thereby realizing continuous automated sealing of multiple test tubes 200. Of course, the test tube sealing device 100 can also have a test tube 200 carrier at the sealing station to place the test tubes 200 to be sealed; no limitation is made here.

[0073] Please see Figures 1 to 3In an embodiment of this utility model, the film feeding device 20 includes an unwinding mechanism 21 and a conveying mechanism 22. The unwinding mechanism 21 is located at the film feeding station and includes a rotating shaft 211 for winding the film material. The rotating shaft 211 is rotatably configured to drive the film material to rotate so as to unwind the film material. The conveying mechanism 22 is located downstream of the unwinding mechanism 21 and is used to receive the film material and guide the film material to move towards the film cutting device 30 for a preset length.

[0074] In this embodiment, the unwinding mechanism 21 is used to place the film material roll, and the conveying mechanism 22 can pull the end of the film material roll to move, so as to provide the film cutting device 30 with a film material roll of a preset length. Specifically, in this embodiment, the unwinding mechanism 21 includes a positioning plate and a pressing plate arranged opposite to each other. The positioning plate and the pressing plate are both coaxially arranged with the rotating shaft 211. The film material roll can be sleeved on the rotating shaft 211 and placed on the positioning plate. Then, it can be pressed into the inner circle of the film material roll by the pressing plate, so that the film material can be locked to the unwinding mechanism 21. With this arrangement, when the rotating shaft 211 rotates, it can drive the film material roll wound on it to rotate synchronously, so as to realize the unwinding function of the film material.

[0075] In some embodiments, the rotating shaft 211 can be connected to a damper via a coupling. This configuration allows the damping force applied by the damper to prevent the membrane material from continuing to rotate forward due to inertia when it needs to stop rotating, thereby improving the motion stability of the membrane material and facilitating the control of the unwinding length of the membrane material.

[0076] Please see Figures 1 to 3 as well as Figure 6 In an embodiment of this utility model, the conveying mechanism 22 includes a clamping component 221 and a conveying component 222. The clamping component 221 is foldably disposed between the unwinding mechanism 21 and the film cutting device 30, so as to have a closed state for clamping the film material and an open state for releasing the film material. The conveying component 222 is disposed on the machine body 10 and is connected to the clamping component 221 in a transmission manner. The conveying component 222 is used to drive the clamping component 221 in the closed state to move toward the film cutting device 30, and to drive the clamping component 221 in the open state to move away from the film cutting device 30.

[0077] The conveying component 222 can be configured as a rotary transfer mechanism such as a ring platform, or as a linear transfer mechanism such as a transmission line. The specific implementation can be determined according to the arrangement between the unwinding mechanism 21 and the film cutting device 30, and is not limited here. By configuring the conveying component 222, the clamping component 221 can move towards or away from the film cutting device 30. When the clamping component 221 is in a closed state and moves towards the film cutting device 30, it can clamp the film material and move it towards the film cutting device 30 by a preset length. When the clamping component 221 is in an open state and moves away from the film cutting device 30, it can detach from the film material and return to its initial position, ready to clamp the next section of film material and move it towards the film cutting device 30. This allows the film material to move intermittently towards the film cutting device 30.

[0078] Of course, the technical solution of this utility model is not limited to this. In other embodiments, the conveying mechanism 22 may also include a conveying component 222 and a transfer component that is tractively connected to the conveying component 222. The transfer component may include a vacuum adsorption structure for adsorbing or releasing the membrane material. The conveying component 222 is used to drive the transfer component adsorbed with the membrane material toward the film cutting device 30 and to drive the transfer component releasing the membrane material away from the film cutting device 30, so as to drive the membrane material to move intermittently toward the film cutting device 30. The specific implementation can be set according to actual needs.

[0079] Please see Figures 1 to 3 as well as Figures 6 to 9 In an embodiment of this utility model, the clamping assembly 221 includes a base structure 2211, a support structure 2212, a film pressing structure 2213, and a driving structure 2214. The base structure 2211 is tractively connected to the conveying assembly 222 so as to move toward or away from the film cutting device 30 under the drive of the conveying assembly 222. The support structure 2212 is disposed on the base structure 2211, and a support surface is formed on the top side of the support structure 2212, on which the film material can be placed. The film pressing structure 2213 is movably disposed relative to the base structure 2211, and at least a portion of the film pressing structure 2213 is disposed above the support structure 2212, and a film pressing surface is formed on the side facing the support structure 2212. The driving structure 2214 is disposed on the base structure 2211 and tractively connected to the film pressing structure 2213, for driving the film pressing structure 2213 to move toward or away from the support structure 2212 so that the clamping assembly 221 clamps or releases the film material.

[0080] The drive structure 2214 can be configured as a linear drive structure, such as a telescopic cylinder or a linear motor, and is not limited here. Under the drive of the drive structure 2214, the pressing structure 2213 can move up and down relative to the support structure 2212, so that the pressing surface and the support surface approach each other and abut against the upper and lower surfaces of the film material, so as to realize the clamping function of the clamping component 221 on the film material, so that the clamping component 221 can drive the film material to move towards the film cutting device 30, so that the film material of the preset length enters the film cutting device 30.

[0081] Specifically, when the driving structure 2214 drives the pressing structure 2213 to press the film material against the support structure 2212 to achieve stable clamping of the film material, the clamping component 221 can move a certain distance toward the film cutting device 30 under the drive of the conveying component 222, thereby feeding the film material of a preset length into the film cutting device 30; then, the driving structure 2214 can drive the pressing surface of the pressing structure 2213 to move away from the support structure 2212, at which time the clamping component 221 can release the film material and move relative to the film material, so as to reset to the initial position under the drive of the conveying component 222, in order to clamp and convey the next section of film material to be cut.

[0082] Please see Figures 4 to 9 In an embodiment of this utility model, the pressure film structure 2213 includes a mounting portion 22131 and a pressure film portion 22132. At least a portion of the mounting portion 22131 is exposed on opposite sides of the support structure 2212 and is connected to the drive structure 2214 for transmission, so that it is movably disposed relative to the support structure 2212 under the drive of the drive structure 2214. The middle part of the pressure film portion 22132 is disposed above the support structure 2212, and the opposite ends of the pressure film portion 22132 are a connecting end and a locking and releasing end, respectively. The connecting end and the locking and releasing end extend to opposite sides of the support structure 2212, so as to be disposed opposite to the mounting portion 22131. The connecting end is rotatably connected to the mounting portion 22131 so that the pressure film portion 22132 is swingably disposed relative to the support structure 2212, and the locking and releasing end is used to lock and release with the mounting portion 22131.

[0083] The connecting end of the pressing part 22132 can be rotatably connected to the mounting part 22131 through a structure such as a pin or a pivot, so that the locking and releasing end of the pressing part 22132 can swing toward the mounting part 22131 to lock and release with the mounting part 22131. The locking and releasing end of the pressing part 22132 can also be released from the mounting part 22131 and swing in a direction away from the mounting part 22131, so that the middle part of the pressing part 22132 moves away from the support structure 2212, thereby facilitating the removal or replacement of the membrane material on the support structure 2212.

[0084] Please see Figures 4 to 9In an embodiment of this utility model, the mounting part 22131 is provided with a locking hole 22131a facing the locking and releasing end, and the locking and releasing end is provided with a locking and releasing member 22133. The locking and releasing member 22133 is provided through the locking and releasing end and is retractably arranged facing the locking hole 22131a to lock or release in the locking hole 22131a.

[0085] The locking / releasing member 22133 may include a handle portion 22133a and a connecting portion 22133b. The connecting portion 22133b is disposed through the locking / releasing end of the pressure film portion 22132 and is movably engaged with the locking / releasing end. The handle portion 22133a is exposed outside the locking / releasing end for easy gripping and operation by the user. Specifically, the user can move the entire locking / releasing member 22133 relative to the pressure film portion 22132 by gripping the handle portion 22133a, thereby causing the connecting portion 22133b of the locking / releasing member 22133 to enter or exit the locking hole on the mounting portion 22131, thereby locking or releasing the pressure film portion 22132.

[0086] In one feasible embodiment, the connecting portion 22133b of the locking / releasing member 22133 may be threadedly engaged with a screw hole on the locking / releasing end of the pressure film portion 22132. When the locking / releasing member 22133 rotates forward or backward relative to the locking / releasing end of the pressure film portion 22132 under the action of external force, the connecting portion 22133b of the locking / releasing member 22133 may correspondingly enter or exit the locking hole on the mounting portion 22131. Of course, in other embodiments, the connecting portion 22133b of the locking / releasing member 22133 may also be plugged into a through hole on the locking / releasing end of the pressure film portion 22132 to correspondingly insert or exit the locking hole on the mounting portion 22131. Specific embodiments can be set according to actual needs and are not limited here.

[0087] Of course, the technical solution of this utility model is not limited to this. In other embodiments, the locking and releasing ends of the mounting part 22131 and the pressing part 22132 can also be detachably connected by means of magnetic attraction, snap-fit ​​and other methods. The specific implementation can be set according to actual needs.

[0088] Please see Figures 7 to 9 In an embodiment of this utility model, the pressing part 22132 includes a fixing block 22132a and a pressing block 22132b. The middle part of the fixing block 22132a is spaced above the support structure 2212. The opposite ends of the fixing block 22132a are a connecting end and a locking / releasing end, respectively. The pressing block 22132b is located in the middle part of the fixing block 22132a and is located on the side of the fixing block 22132a facing the support structure 2212, and is elastically connected to the fixing block 22132a.

[0089] By elastically connecting the middle of the pressure block 22132b and the fixing block 22132a, the bottom wall of the pressure block 22132b can elastically abut against the upper surface of the film material when the pressing part 22132 presses the film material. This helps the clamping component 221 of the conveying mechanism 22 to stably clamp and limit the film material, thereby ensuring the clamping effect of the clamping component 221.

[0090] Specifically, in this embodiment, a groove may be provided on the side of the middle part of the fixing block 22132a facing the support structure 2212. The pressing block 22132b is movably disposed in the groove. An elastic element 334 may be connected between the pressing block 22132b and the bottom wall of the groove, so that the pressing block 22132b can enter the groove when it is pressed by an external force, and compress the elastic element 334 to accumulate elastic potential energy. When the pressing block 22132b stops being subjected to external force, the elastic element 334 releases the elastic potential energy and pushes the pressing block 22132b to move out of the groove.

[0091] Please see Figure 6 In an embodiment of this utility model, the film cutting device 30 includes a lower cutting mechanism 31 and an upper cutting mechanism 32. The lower cutting mechanism 31 is located at the film cutting station, and a lower cutting blade 311 is provided on the top side of the lower cutting mechanism 31. The film material can be placed on the top surface of the lower cutting blade 311. The upper cutting mechanism 32 is located on one side of the lower cutting mechanism 31 and includes an upper cutting blade 322 that can be raised and lowered relative to the lower cutting blade 311. The projection of the upper cutting blade 322 on the top surface of the lower cutting blade 311 is adjacent to the lower cutting blade 311.

[0092] In this embodiment, the lower cutter 311 can be fixedly set relative to the machine body 10. By making the upper cutter 322 vertically set relative to the lower cutter 311, the membrane material can be cut by the mutual movement between the upper cutter 322 and the lower cutter 311.

[0093] Specifically, in one feasible embodiment, the upper cutting mechanism 32 includes a fixing member 321 and an upper cutting blade 322. The fixing member 321 is located upstream of the lower cutting mechanism 31 and is vertically movable relative to the lower cutting mechanism 31. The upper cutting blade 322 has a sheet-like structure, extends vertically, and is connected to the side of the fixing member 321 facing the lower cutting mechanism 31. The bottom end of the upper cutting blade 322 may partially protrude from the bottom side of the fixing member 321. The bottom end of the upper cutting blade 322 is used to move towards the film material under the drive of the fixing member 321 to cooperate with the lower cutting mechanism 31 to cut the film material.

[0094] Of course, in other embodiments, the upper cutter 32 may also be configured as a cutter block, the projection of which onto the top surface of the lower cutter 311 is adjacent to the lower cutter 311. Specific implementation methods can be customized according to actual needs and are not limited here.

[0095] Please see Figures 1 to 5 In an embodiment of this utility model, the film cutting device 30 further includes a top film mechanism 33, which is located below the upper cutter 322 and has a top block 331 facing the upper cutter 322. The top block 331 is vertically adjustable relative to the lower cutter 311 to have an initial position adjacent to the lower cutter 311 and a cutting position away from the lower cutter 311.

[0096] To prevent the membrane material from warping downwards after the upper cutter 322 cuts it, thus hindering its subsequent transport, and to prevent the membrane material from retracting, this application provides a top membrane mechanism 33 below the upper cutter 322. The top membrane mechanism 33 has a top block 331 positioned opposite the upper cutter 322 on its top side. When in its initial position, the top block 331 can hold the membrane material together with the lower cutter 311. After the upper cutter 322 moves downward and abuts against the upper surface of the membrane material on the top block 331, the upper cutter 322, the membrane material in contact with the upper cutter 322, and the top block 331 can move downward synchronously until the top block 331 moves to a position away from the lower cutter 311, so that the upper cutter 322 and the lower cutter 311 can cooperate to cut the membrane material. After the membrane material is cut, the upper cutter 322 moves upward, and the top block 331 can drive the membrane material placed on it to move upward synchronously until the top block 331 returns to its initial position, thereby lifting the cut membrane material.

[0097] Specifically, in the embodiments of this utility model, the top block 331 is provided with a guide hole, and the top film mechanism 33 further includes a base 332, a guide shaft 333, and an elastic member 334. The base 332 is spaced below the upper cutter 322; the guide shaft 333 is located on the side of the base 332 facing the upper cutter 322 and extends in the vertical direction, passing through the guide hole; the elastic member 334 is sleeved on the guide shaft 333 and connected between the top block 331 and the base 332, so that the top block 331 has a tendency to return to the initial position.

[0098] The guide shaft 333 guides the top block 331, improving its motion stability. The elastic element 334 can be configured as a spring. By fitting the spring onto the guide shaft 333, the guide shaft 333 can be used to position the spring, improving its positional stability.

[0099] Specifically, when the top block 331 moves from its initial position toward the cutting position under the drive of the upper cutter 322, the elastic element 334 can be compressed to accumulate elastic potential energy; when the upper cutter 322 moves upward, the elastic element 334 can release the elastic potential energy and drive the top block 331 to move back to its initial position. After the top block 331 of the top film mechanism 33 is reset, the film material can move further toward the lower cutter mechanism 31 under the drive of the film feeding device 20, so that the film cutting device 30 can cut the next section of film material.

[0100] Please see Figures 1 to 5 In an embodiment of this utility model, the sealing mechanism 42 includes a connecting component 421, a hot pressing component 422, and an adsorption component 423. The connecting component 421 is connected to the driving mechanism 41. The hot pressing component 422 is disposed on one side of the connecting component 421 and moves back and forth between the film cutting station and the film sealing station under the drive of the connecting component 421. A hot pressing surface is formed at the bottom of the hot pressing component 422, and an adsorption channel 422a communicating with the hot pressing surface is formed inside the hot pressing component 422. The adsorption component 423 is disposed on one side of the hot pressing component 422 and passes through the adsorption channel 422a to adsorb the film onto the hot pressing surface so that the film moves synchronously with the hot pressing component 422.

[0101] The hot-pressing assembly 422 has a hot-pressing surface for contacting the membrane material, so that the membrane material can be pressed and heat-sealed at the opening of the test tube 200 after being transferred to the opening. Specifically, when the membrane material contacts the open end of the test tube 200 and is heated to a certain temperature by the hot-pressing assembly 422, the membrane material can be heat-fused to the end face of the open end of the test tube 200, thereby sealing the membrane material at the opening of the test tube 200 and achieving sealed preservation of the specimen in the test tube 200.

[0102] It should be noted that while the sealing mechanism 42 picks up the film from the cutting device 30 and transfers it to the opening of the test tube 200 at the sealing station for heat sealing, the clamping component 221 of the conveying mechanism 22 can release the currently clamped film material and move away from the cutting device 30 back to its initial position to clamp the next section of film material to be cut and move it a certain distance toward the cutting device 30. This arrangement allows the heat sealing process of the film by the sealing device 40 and the feeding process of the film by the film feeding device 20 to be performed simultaneously, thereby improving the sealing efficiency of the test tube sealing equipment 100.

[0103] Please see Figure 4 and Figure 5 In an embodiment of this utility model, the hot pressing assembly 422 includes an induction coil 4221 and an induction pressure plate 4222 arranged sequentially from top to bottom. The side of the induction pressure plate 4222 facing away from the induction coil 4221 forms a hot pressing surface. The induction coil 4221 is provided with a first through hole, and the induction pressure plate 4222 is provided with a second through hole. The adsorption assembly 423 can be inserted through the first through hole and the second through hole.

[0104] In this embodiment, the side of the induction plate 4222 facing away from the induction coil 4221 is used to contact the membrane material. When the membrane material is transferred to the open end of the test tube 200, the membrane material can be heated by the alternating magnetic field generated by the induction plate 4222 through electromagnetic induction, so that the membrane material can be heat-sealed at the opening of the test tube 200.

[0105] Of course, the technical solution of this utility model is not limited to this. In other embodiments, the hot pressing component 422 can generate heat through the thermal effect of electric current and transfer the heat to the membrane material through the hot pressing surface used to contact the membrane material, so as to achieve the effect of heating the membrane material. Of course, the membrane material can also be heated by other means. The specific implementation method can be set according to actual needs and is not limited here.

[0106] Please see Figure 4 and Figure 5 In an embodiment of this utility model, the adsorption component 423 includes a moving member 4231 and an adsorption member 4232. The moving member 4231 is disposed on one side of the hot pressing component 422, and the adsorption member 4232 is connected to the moving member 4231 for moving through the adsorption channel 422a under the drive of the moving member 4231.

[0107] With this configuration, the adsorption member 4232 can extend and retract relative to the hot pressing surface of the hot pressing assembly 422 under the drive of the moving member 4231, thereby controlling the adsorption or release of the film material by the sealing mechanism 42. Specifically, when it is necessary to move the membrane material from the cutting station to the sealing station, the hot pressing assembly 422 can be aligned and engaged with the membrane at the cutting device 30, and the adsorption member 4232 can be controlled to extend towards the hot pressing surface of the hot pressing assembly 422 through the adsorption channel 422a, so that the adsorption end of the adsorption member 4232 is close to the hot pressing surface. The adsorption member 4232 can generate negative pressure at the adsorption channel 422a through a vacuum generator, so that the membrane material can be adsorbed onto the hot pressing surface, thereby enabling the sealing mechanism 42 to drive the membrane to move synchronously. After the membrane is transferred by the sealing mechanism 42 to the opening of the test tube 200 at the sealing station, the adsorption member 4232 can be controlled to retract away from the hot pressing surface of the hot pressing assembly 422 through the adsorption channel 422a, so that the membrane stops adsorbing onto the hot pressing surface, thereby realizing the membrane transfer function of the sealing mechanism 42.

[0108] In some embodiments, a linear bearing may also be provided in the adsorption channel 422a. The linear bearing is located between the inner wall of the adsorption channel 422a and the outer wall of the adsorption member 4232, which is beneficial to improving the movement stability of the adsorption member 4232.

[0109] Please see Figure 4 and Figure 10 In an embodiment of this utility model, the sealing device 40 further includes a pressing mechanism 43, which is connected to the driving mechanism 41 and is used to move toward the sealing station under the drive of the driving mechanism 41 to press the film heat-sealed in the opening of the test tube 200 into a preset shape. With this configuration, the film heat-sealed in the opening of the test tube 200 can be shaped by the pressing structure 2213.

[0110] Specifically, in this embodiment, a pressing groove can be provided on the side of the pressing mechanism 43 facing the test tube 200, so that the shape of the membrane after being shaped by the pressing mechanism 43 can be controlled by designing the shape of the pressing groove. In some embodiments, the projection of the shaped membrane onto the plane of the open end of the test tube 200 is smaller than its projection before shaping, which helps to reduce the space occupied by the membrane. The shaped membrane can be conical, cylindrical, etc., and is not limited here.

[0111] Please see Figure 4 and Figure 10 In an embodiment of this utility model, the film pressing mechanism 43 includes a connecting seat 431, a guide rod 432, and a pressing sleeve 433. The connecting seat 431 is connected to the driving mechanism 41 and is movably disposed above the sealing station. The guide rod 432 is disposed on the bottom side of the connecting seat 431 and extends in the vertical direction. The pressing sleeve 433 is movably disposed below the connecting seat 431. The side of the pressing sleeve 433 facing the connecting seat 431 is sleeved on the guide rod 432 and elastically connected to the connecting seat 431. The side of the pressing sleeve 433 away from the connecting seat 431 is provided with a film pressing groove.

[0112] A spring may be provided between the pressure sleeve 433 and the connecting seat 431. The spring is sleeved on the guide rod 432, and the two ends of the spring are connected to the pressure sleeve 433 and the connecting seat 431 respectively. This can realize the elastic connection between the pressure sleeve 433 and the connecting seat 431, and the position stability of the spring can be ensured by the positioning effect of the guide rod 432.

[0113] Specifically, when the connecting seat 431 moves toward the test tube 200 under the drive of the drive structure 2214, the bottom end of the pressure sleeve 433 first makes initial contact with the open end of the test tube 200 and the membrane heat-sealed in the test tube 200; then, as the connecting seat 431 moves further toward the test tube 200, the pressure sleeve 433 can slide relative to the guide rod 432 under the push of the test tube 200. At this time, the elastic element 334 is compressed and can apply an elastic force toward the pressure sleeve 433 toward the test tube 200, so that the pressure sleeve 433 can be well pressed and fitted with the test tube 200 and the membrane material, so that the pressure sleeve 433 can shape the membrane material heat-sealed in the opening of the test tube 200 into a preset shape.

[0114] When the connecting seat 431 moves away from the test tube 200 under the drive of the drive structure 2214, the compressed elastic element 334 can release its elastic potential energy and drive the pressure sleeve 433 to slide and reset relative to the guide rod 432, in preparation for pressing and shaping the next diaphragm.

[0115] Please see Figure 10In this embodiment of the invention, the cross-sectional area of ​​the pressing groove gradually decreases in the direction away from the groove opening. This arrangement allows the membrane to be shaped into a conical structure by the pressing mechanism 43, thereby reducing its projected area on the plane containing the open end of the test tube 200.

[0116] In an embodiment of this utility model, the driving mechanism 41 can be a rotary driving mechanism 41, with the sealing mechanism 42 and the pressing mechanism 43 spaced apart around the rotary driving mechanism 41. The rotary driving mechanism 41 can simultaneously drive the sealing mechanism 42 and the pressing mechanism 43 to rotate synchronously by a certain angle.

[0117] Specifically, when the rotary drive mechanism 41 drives the sealing mechanism 42 to move from the film cutting station to the sealing station, the pressing mechanism 43 can move out of the sealing station simultaneously. At this time, the sealing mechanism 42 can heat-seal the film material to the open end of the test tube 200 at the sealing station. After the sealing mechanism 42 completes the heat-sealing step of the test tube 200, the rotary drive mechanism 41 can drive the sealing mechanism 42 to move back to the film cutting station to transfer the next film to be heat-sealed on the film cutting device 30. At this time, the pressing mechanism 43 can move into the sealing station simultaneously to press and shape the film that has been heat-sealed.

[0118] With this configuration, the sealing mechanism 42 and the pressing mechanism 43 can be driven by the same drive mechanism 41, which helps to reduce wasted motion. Moreover, compared with the technical solution of setting different drive mechanisms 41 to drive the sealing mechanism 42 and the pressing mechanism 43 respectively, it can also reduce the setting cost and volume of the drive mechanism 41.

[0119] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A test tube sealing apparatus, characterized by, The application relates to a film sealing device for a film sealing machine. The film sealing device comprises a machine body, a film feeding device, a film cutting device and a film sealing device. The film feeding device comprises a film unwinding mechanism and a film conveying mechanism. The film unwinding mechanism comprises a rotating shaft for winding the film. The film conveying mechanism is arranged downstream of the film unwinding mechanism. The film conveying mechanism comprises a clamping assembly and a conveying assembly.

2. The test tube sealing film apparatus according to claim 1, wherein The clamping assembly is arranged between the film unwinding mechanism and the film cutting device. The conveying assembly is arranged on the machine body and is in transmission connection with the clamping assembly. The conveying assembly drives the clamping assembly in the closed state to move towards the film cutting device and drives the clamping assembly in the open state to move away from the film cutting device.

3. The test tube sealing film apparatus according to claim 2, wherein The clamping assembly comprises a seat structure, a supporting structure, a pressing structure and a driving structure. The seat structure is in transmission connection with the conveying assembly. The supporting structure is arranged on the seat structure.

4. The test tube sealing film apparatus according to claim 3, wherein The pressing structure is movably arranged on the seat structure. The driving structure is arranged on the seat structure and is in transmission connection with the pressing structure. The driving structure drives the pressing structure to move towards or away from the supporting structure. The pressing structure comprises a mounting portion and a pressing portion. The mounting portion is exposed on two opposite sides of the supporting structure and is in transmission connection with the driving structure.

5. The test tube sealing film apparatus according to claim 4, wherein The pressing portion is arranged above the supporting structure. The pressing portion comprises a connecting end and a locking release end. The connecting end is in rotation connection with the mounting portion. The locking release end is in locking and releasing cooperation with the mounting portion. The pressing portion is swingably arranged relative to the supporting structure.

6. The test tube sealing film apparatus according to claim 5, wherein The mounting portion is provided with a lock hole facing the lock release end, the lock release end is provided with a lock release piece, the lock release piece is arranged through the lock release end and is arranged in an extendable manner facing the lock hole to lock or release the lock hole; And / or, the film pressing portion includes a fixed block and a pressing block, the middle part of the fixed block is arranged above the support structure, the opposite ends of the fixed block are the connection end and the lock release end respectively, and the pressing block is arranged at the middle part of the fixed block and located on the side of the fixed block facing the support structure and is elastically connected with the fixed block.

7. The test tube sealing film apparatus according to any one of claims 1 to 6, wherein The film cutting device includes: A lower cutter mechanism is arranged at the film cutting station, a top side of the lower cutter mechanism is provided with a lower cutter, and the film material can be placed on the top surface of the lower cutter; and An upper cutter mechanism is arranged on one side of the lower cutter mechanism and includes an upper cutter arranged in an elevatable manner relative to the lower cutter, and a projection of the upper cutter on the top surface of the lower cutter is arranged adjacent to the lower cutter.

8. The test tube sealing film apparatus according to claim 7, wherein The film cutting device further includes a top film mechanism, the top film mechanism is located below the upper cutter and is provided with a top block facing the upper cutter, the top block is arranged in an elevatable manner relative to the lower cutter to have an initial position adjacent to the lower cutter and a slitting position away from the lower cutter.

9. The test tube sealing film apparatus according to claim 8, wherein The top block is provided with a guide hole, and the top film mechanism further includes: A base is arranged in a spaced manner below the upper cutter; A guide shaft is arranged on one side of the base facing the upper cutter and extends in an up-down direction and penetrates the guide hole; and An elastic piece is sleeved on the guide shaft and connected between the top block and the base, so that the top block has a tendency to return to the initial position.

10. The test tube sealing film apparatus according to any one of claims 1 to 6, wherein The film sealing mechanism includes: A connecting assembly is in transmission connection with the driving mechanism; A hot pressing assembly is arranged on one side of the connecting assembly to move back and forth between the film cutting station and the film sealing station under the driving of the connecting assembly, a bottom of the hot pressing assembly is formed with a hot pressing surface, and the hot pressing assembly is formed with a suction channel communicated with the hot pressing surface; and A suction assembly is arranged on one side of the hot pressing assembly and penetrates the suction channel, and is used to suction the film sheet to the hot pressing surface so that the film sheet moves synchronously with the hot pressing assembly.

11. The test tube sealing film apparatus according to claim 10, wherein The hot pressing assembly includes an induction coil and an induction pressing plate arranged in sequence from top to bottom, the side of the induction pressing plate away from the induction coil is formed with the hot pressing surface, the induction coil is penetrated with a first via hole, the induction pressing plate is penetrated with a second via hole, and the suction assembly can penetrate the first via hole and the second via hole; And / or, the suction assembly includes a driving piece and a suction piece, the driving piece is arranged on one side of the hot pressing assembly, and the suction piece is in transmission connection with the driving piece and is used to move in the suction channel under the driving of the driving piece.

12. The test tube sealing film apparatus according to any one of claims 1 to 6, wherein The film sealing device further includes a film pressing mechanism, the film pressing mechanism is in transmission connection with the driving mechanism and is used to move towards the film sealing station under the driving of the driving mechanism to press the film sheet hot sealed to the opening of the test tube into a preset shape.

13. The test tube sealing film apparatus of claim 12, wherein, The film pressing mechanism includes: A connecting seat is drivingly connected with the driving mechanism and movably arranged above the film sealing station; A guide rod is arranged at the bottom side of the connecting seat and extends in the up-down direction; and A pressing sleeve is movably arranged below the connecting seat, one side of the pressing sleeve towards the connecting seat is sleeved on the guide rod and is elastically connected with the connecting seat, and the other side of the pressing sleeve away from the connecting seat is provided with a film pressing groove.

14. The test tube sealing film apparatus of claim 13, wherein, The cross-sectional area of the film pressing groove gradually decreases in the direction away from the groove opening of the film pressing groove.

Images