Anti-solidification quantitative inverted glue dripping device

Abstract

The utility model relates to the technical field of glue dripping sealing pieces, in particular to an anti-solidification quantitative inverted glue dripping device, which is characterized in that glue is filled in a flexible bag, the flexible bag is fixed and inverted by utilizing the clamping between a containing bottle and a liquid suction part, and then the glue flows out along the liquid suction part, a metering pump and a liquid outlet part in sequence, so that the glue dripping sealing pieces are sealed. The glue liquid flows out through the liquid suction part, is temporarily stored through the metering pump and drips out through the liquid outlet part, quantitative glue liquid is squeezed out between the metering pump and the liquid outlet part through the one-way valve mechanism to be used by a sealing sheet, and due to the arrangement of the one-way valve mechanism, the glue liquid in the device is in a sealed state, the glue liquid state can be well maintained, and the glue liquid is prevented from being solidified.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dripping and sheet sealing, and more specifically, it relates to an anti-coagulation fixed-quantity inverted glue dripping device. Background Art

[0002] During the process of sealing a glass slide, first, a certain amount of glue is injected onto the glass slide. After the glue is injected, the glass slide is cured. Usually, ultraviolet exposure or a chemical curing agent is used for the curing process of the glue to ensure that the glue can firmly fix the sample on the glass slide.

[0003] After the curing is completed, a coverslip is then covered on the glass slide to protect the fixed sample and provide a flat surface for subsequent cutting and staining operations.

[0004] The amount of glue dripping will have a direct or indirect impact on the fixation of the sample. If the amount of glue dripping is too small, it will directly affect the stability of sample fixation. If the amount of glue dripping is too much, it will directly cause waste of glue. And during the glue dripping process, the glue is exposed to the air for a long time, causing the glue to solidify and making it impossible to be stored and used for a long time. Content of the Utility Model

[0005] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide an anti-coagulation fixed-quantity inverted glue dripping device, which has the advantages of quantitatively controlling the dripping liquid and preventing the glue liquid from solidifying.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an anti-coagulation fixed-quantity inverted glue dripping device, including a placement table, a glue dripping mechanism inverted on the placement table, and a driving member for extruding the glue dripping mechanism;

[0007] The glue dripping mechanism includes a containing bottle for containing a flexible bag filled with glue liquid, which is arranged in an inverted order, a liquid suction part sleeved on the containing bottle, a metering pump for caching a predetermined amount of glue liquid, and a liquid outlet part for the directional flow of the glue liquid; a one-way valve mechanism for blocking or opening and closing the quantitative flow of the glue liquid is arranged at one end of the liquid outlet part far away from the liquid suction part;

[0008] The containing bottle and the liquid suction part clamp and fix the flexible bag. A plurality of through holes are opened on the containing bottle. By using the driving member to extrude the glue dripping mechanism, the liquid suction part and the liquid outlet part are pushed closer to each other, promoting a liquid injection push without air pressure compensation to occur in the metering pump. The air pressure in the metering pump is compensated by the contraction of the flexible bag, and the metering pump extrudes the glue liquid by pushing and extruding the one-way valve mechanism.

[0009] Preferably, the liquid suction part includes a support outer sleeve fixedly connected to the accommodating bottle and a two-way flow valve arranged inside the support outer sleeve. The two-way flow valve is located between the flexible bag and the metering pump, and an elastic support connection is made between the two-way flow valve and the metering pump through a support spring. When the liquid suction part and the liquid outlet part are close to each other and extruded, causing a liquid injection push without air pressure compensation to occur in the metering pump, the support spring is compressed, and the metering pump pushes the two-way flow valve open.

[0010] Preferably, the metering pump includes a hollow push rod communicated with the liquid suction part and a hollow sleeve for the linear sliding of the hollow push rod. The hollow sleeve is fixed inside the liquid outlet part, and a flow hole communicated with the liquid outlet part is arranged on one side of the hollow sleeve.

[0011] Preferably, the liquid outlet part includes an inner housing and an outer housing wrapping the inner housing. A flow gap is formed between the inner housing and the outer housing, and the flow gap is always communicated with the through hole. An outlet is arranged at one end of the flow gap far from the liquid suction part, and the glue flows out through the flow gap and the outlet.

[0012] Preferably, the one-way valve mechanism includes a flexible extrusion cavity arranged inside the liquid outlet part, and a return spring is arranged on the flexible extrusion cavity. When the liquid suction part and the liquid outlet part are close to each other and extruded, the metering pump pushes the flexible extrusion cavity, causing the space inside the flow gap to be extruded, and the glue flows out. When the squeezed liquid suction part and liquid outlet part are released, the metering pump moves away from the flexible extrusion cavity, and the flexible extrusion cavity is reset through the return spring.

[0013] Preferably, a buffer spring is arranged at the end of the hollow push rod, and a pushing part is arranged on the buffer spring.

[0014] In summary, the beneficial effects of the present utility model are as follows: The flexible bag is filled with glue. The flexible bag is fixed by the clamping between the accommodating bottle and the liquid suction part. When the device is inverted, the glue flows out in sequence along the liquid suction part, the metering pump, and the liquid outlet part. It flows out through the liquid suction part, is buffered by the metering pump, and drips outside the liquid outlet part. Between the metering pump and the liquid outlet part, a certain amount of glue is extruded through the one-way valve mechanism for use in supply sealing. Due to the setting of the one-way valve mechanism, the glue in the device is in a sealed state, which can well maintain the glue state and prevent the glue from solidifying. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0016] Reference numerals: 1, placing table; 11, driving member; 12, accommodating bottle; 13, flexible bag; 14, through hole; 2, liquid suction part; 21, supporting outer sleeve; 22, two-way flow valve; 23, supporting spring; 3, metering pump; 31, hollow push rod; 32, hollow sleeve; 33, flow hole; 4, liquid outlet part; 41, inner housing; 42, outer housing; 43, flow gap; 44, liquid outlet; 5, one-way valve mechanism; 51, flexible extrusion cavity; 52, restoring spring; 6, buffer spring; 61, pushing member. Detailed implementation manners

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0019] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0021] An anti-coagulation fixed-quantity inverted glue-dropping device, see Figure 1 , placing table 1, a glue-dropping mechanism inverted on the placing table 1, and a driving member 11 for extruding the glue-dropping mechanism;

[0022] The dispensing mechanism includes a containing bottle 12 for containing a flexible bag 13 filled with glue solution, arranged in an inverted order, a liquid suction part 2 sleeved on the containing bottle 12, a metering pump 3 for caching a predetermined amount of glue solution, and a liquid outlet part 4 for guiding the glue solution to flow in a specific direction; at one end of the liquid outlet part 4 away from the liquid suction part 2, a one-way valve mechanism 5 for blocking or opening and closing the quantitative flow of the glue solution is arranged;

[0023] The containing bottle 12 and the liquid suction part 2 clamp and fix the flexible bag 13. A plurality of through holes 14 are formed in the containing bottle 12. By driving the driving part 11 to squeeze the dispensing mechanism, the liquid suction part 2 and the liquid outlet part 4 are pushed closer to each other, so that a liquid injection push without air pressure compensation occurs in the metering pump 3. The air pressure in the metering pump 3 is compensated by the contraction of the flexible bag 13, and the metering pump 3 extrudes the glue solution by pushing and squeezing the one-way valve mechanism 5.

[0024] In this embodiment, the glue solution is filled in the flexible bag 13. By using the clamping between the containing bottle 12 and the liquid suction part 2, the flexible bag 13 is fixed. The device is inverted. At this time, the glue solution flows out in sequence along the liquid suction part 2, the metering pump 3 and the liquid outlet part 4, flows out through the liquid suction part 2, is cached by the metering pump 3, and drips outside the liquid outlet part 4. Between the metering pump 3 and the liquid outlet part 4, a predetermined amount of glue solution is extruded through the one-way valve mechanism 5 for use in supply sealing. Due to the setting of the one-way valve mechanism 5, the glue solution in the device is in a sealed state, and the glue solution state can be well maintained, avoiding the solidification of the glue solution.

[0025] An inverted hole is arranged on the placing table 1, and the dispensing mechanism is inverted on the placing table 1. By driving the driving part 11 to push the dispensing mechanism, the dispensing mechanism drips liquid, wherein the driving part 11 is a cylinder push.

[0026] Specifically, the liquid suction part 2 includes a support outer sleeve 21 fixedly connected to the containing bottle 12 and a two-way flow valve 22 arranged in the support outer sleeve 21. The two-way flow valve 22 is located between the flexible bag 13 and the metering pump 3, and the two-way flow valve 22 and the metering pump 3 are elastically supported and connected by a support spring 23; when the liquid suction part 2 and the liquid outlet part 4 are pushed closer to each other and squeezed, so that a liquid injection push without air pressure compensation occurs in the metering pump 3, the support spring 23 is compressed, and the metering pump 3 pushes the two-way flow valve 22 to open.

[0027] Inside the liquid suction part 2, the glue liquid in the flexible bag 13 flows towards the metering pump 3 through the two-way flow valve 22. When being squeezed between the liquid suction part 2 and the liquid outlet part 4, both ends of the metering pump 3 push towards the liquid suction part 2 and the liquid outlet part 4 respectively, prompting the injection liquid push without air pressure compensation to occur inside the metering pump 3. At this time, the support spring 23 is compressed, and the metering pump 3 pushes the two-way flow valve 22 to open. When the metering pump 3 gradually returns to its original position, due to being internally sealed, the glue liquid in the flexible bag 13 flows into the metering pump 3 under the action of the external pressure. Only the glue liquid cached in the metering pump 3 waits for the next one-way valve mechanism 5 to carry it out through the liquid outlet 44.

[0028] At the same time, the support spring 23 undergoes elastic recovery in a state without pressure. At this time, the two-way flow valve 22 slowly closes to restrict the flow of the glue liquid.

[0029] Specifically, the metering pump 3 includes a hollow push rod 31 communicated with the liquid suction part 2 and a hollow sleeve 32 for the linear sliding of the hollow push rod 31. The hollow sleeve 32 is fixed inside the liquid outlet part 4, and a flow hole 3314 communicated with the liquid outlet part 4 is arranged on one side of the hollow sleeve 32.

[0030] The metering pump 3 in this embodiment is essentially based on the principle of an injector. The glue liquid flows through the hollow push rod 31 and enters the liquid outlet part 4. When the hollow push rod 31 moves, the storage space inside the hollow sleeve 32 increases. Since it is in a closed state inside, at this time, the external pressure balances the storage space inside the hollow sleeve 32, and will further squeeze the flexible bag 13, prompting the glue liquid to be squeezed and flow into the metering pump 3. At this time, the one-way valve mechanism 5 is opened again, and under the action of the pressure, the glue liquid flows out. Therefore, the stroke space between the hollow push rod 31 and the hollow sleeve 32 represents the outflow volume of the squeezed glue liquid. Therefore, by controlling the size of the stroke space, the size of the glue liquid outflow volume can be controlled, achieving quantitative output.

[0031] Specifically, the liquid outlet part 4 includes an inner housing 41 and an outer housing 42 wrapping the inner housing 41. A flow gap 43 is formed between the inner housing 41 and the outer housing 42. The flow gap 43 is always communicated with the flow hole 3314. An outlet 44 is arranged at one end of the flow gap 43 far from the liquid suction part 2, and the glue liquid flows out through the flow gap 43 and the outlet 44.

[0032] The liquid outlet part 4 in this embodiment forms a flow gap 43 for the glue liquid to flow through by the sleeving between the inner housing 41 and the outer housing 42, and the glue liquid flows out through the outlet 44.

[0033] Specifically, the one-way valve mechanism 5 includes a flexible extrusion cavity 51 disposed inside the liquid outlet portion 4, and a return spring 52 is provided on the flexible extrusion cavity 51. When the metering pump 3 pushes the flexible extrusion cavity 51 by approaching and squeezing the liquid suction portion 2 and the liquid outlet portion 4, the space in the flow gap 43 is squeezed, and the adhesive flows out. When the squeezed liquid suction portion 2 and the liquid outlet portion 4 are released, the metering pump 3 moves away from the flexible extrusion cavity 51, and the flexible extrusion cavity 51 is reset by the return spring.

[0034] Using the principle that the flexible extrusion cavity 51 is pushed when being extruded and adsorbs when being restored, the adhesive is retained in the liquid outlet portion 4.

[0035] Specifically, a buffer spring 6 is provided at the end of the hollow push rod 31, and a pushing member 61 is provided on the buffer spring 6. The pushing member 61 can directly act on and squeeze the flexible extrusion cavity 51, and the buffer spring 6 is used for buffering to avoid hard collision between the pushing member 61 and the flexible extrusion cavity 51.

[0036] The above embodiments are only explanations of the present invention, and they are not limitations of the present invention. Those skilled in the art can make modifications to the embodiments without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An anti-coagulation fixed amount inverted glue dripping device, characterized by: It includes a placement table, a glue dripping mechanism inverted on the placement table, and a driving member for squeezing the glue dripping mechanism; The glue dripping mechanism comprises a container bottle for accommodating a flexible bag containing glue liquid, a liquid suction part sleeved on the container bottle, a metering pump for buffering a predetermined amount of glue liquid, and a liquid outlet for directional flow of glue liquid; a one-way valve mechanism for blocking or opening and closing the quantitative flow of glue liquid is arranged at one end of the liquid outlet away from the liquid suction part; The accommodating bottle and the liquid absorbing part clamp and fix the flexible bag. A plurality of through holes are opened on the accommodating bottle. The glue dripping mechanism is squeezed by the driving member to squeeze the liquid absorbing part and the liquid discharging part closer to each other, thereby promoting liquid injection without air pressure compensation in the metering pump. The air pressure in the metering pump is compensated by the contraction of the flexible bag, and the metering pump squeezes out the glue liquid through the top-pushing and squeezing one-way valve mechanism.

2. The anti-coagulation fixed amount inverted glue dripping device according to claim 1 is characterized by: The liquid suction part includes a supporting outer sleeve fixedly connected to the accommodating bottle and a two-way circulation valve arranged in the supporting outer sleeve, the two-way circulation valve is located between the flexible bag and the metering pump, and the two-way circulation valve and the metering pump are elastically supported and connected via a supporting spring; when the liquid suction part and the liquid discharge part are squeezed close to each other, causing liquid injection without air pressure compensation to occur in the metering pump, the supporting spring is compressed, and the metering pump pushes the two-way circulation valve to open.

3. The anti-coagulation fixed amount inverted glue dripping device according to claim 1 is characterized by: The metering pump comprises a hollow push rod connected to the liquid suction part and a hollow sleeve for linear sliding of the hollow push rod. The hollow sleeve is fixed in the liquid outlet part, and one side of the hollow sleeve is arranged at a flow hole connected to the liquid outlet part.

4. The anti-coagulation fixed amount inverted glue dripping device according to claim 1 is characterized by: The liquid outlet portion includes an inner shell and an outer shell that wraps the inner shell. A flow gap is provided between the inner shell and the outer shell. The flow gap is always connected to the through hole. A liquid outlet is provided at one end of the flow gap away from the liquid absorption portion. The glue flows out through the flow gap and the liquid outlet.

5. The anti-coagulation fixed amount inverted glue dripping device according to claim 1 is characterized by: The one-way valve mechanism includes a flexible extrusion chamber arranged on the inner side of the liquid outlet portion, and a restoring spring is arranged on the flexible extrusion chamber; when the liquid suction portion and the liquid outlet portion are squeezed close to each other, the metering pump pushes the flexible extrusion chamber, causing the space in the flow gap to be squeezed and the glue to flow out; when the squeezed liquid suction portion and the liquid outlet portion are released, the metering pump moves away from the flexible extrusion chamber, and the flexible extrusion chamber is reset by the restoring spring.

6. The anti-coagulation fixed amount inverted glue dripping device according to claim 3 is characterized by: A buffer spring is arranged at the end of the hollow push rod, and a push piece is arranged on the buffer spring.

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