Hose assemblies and encapsulation equipment

Abstract

This invention discloses a hose assembly and a packaging device having the hose assembly. The hose assembly includes a tube body, a first piston, a second piston, and a barrier. The tube body has a receiving cavity with an adhesive outlet on the bottom wall of the receiving cavity. The first piston is housed in the receiving cavity and can move axially along the tube body. The second piston is housed in the receiving cavity and can move axially along the tube body. The second piston is located between the bottom wall of the receiving cavity and the first piston. The tube body between the second piston and the adhesive outlet forms a first receiving space for receiving adhesive. A second receiving space for receiving cleaning agent is formed between the second piston and the first piston. The second piston has a channel, and the second receiving space communicates with the adhesive outlet through the channel. The barrier is connected to the second piston. When the second piston abuts against the bottom wall of the receiving cavity, the first piston can squeeze the cleaning agent to break the barrier, thereby improving the working efficiency of the packaging device.

Description

Technical Field

[0001] This invention relates to the field of battery packaging technology, and in particular to a tubing assembly and packaging equipment. Background Technology

[0002] The tubing assembly of encapsulation equipment used in battery production typically includes a tubing body and a piston. The piston is movably mounted inside the tubing body to extrude adhesive. In existing dispensing processes, the tubing body is connected to the dispensing nozzle. After the adhesive inside the tubing body is used up, before changing to a tubing assembly with a different type of adhesive, the dispensing nozzle retains residue from the previous type of adhesive. This requires disassembling and cleaning the dispensing nozzle, which is time-consuming and affects the working efficiency of the encapsulation equipment. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a tubing assembly that can improve the working efficiency of packaging equipment.

[0004] The present invention also proposes a packaging device having the above-described tubing assembly.

[0005] According to a first aspect of the present invention, a hose assembly includes a tube body, a first piston, a second piston, and a barrier. The tube body has a receiving cavity along its axial direction, and the bottom wall of the receiving cavity has an adhesive outlet. The first piston is received in the receiving cavity and is movable along the axial direction of the tube body. The second piston is received in the receiving cavity and is movable along the axial direction of the tube body. The second piston is located between the bottom wall of the receiving cavity and the first piston. The tube body between the second piston and the adhesive outlet forms a first receiving space for receiving adhesive. The first receiving space is used to receive adhesive. A second receiving space for receiving detergent is formed between the second piston and the first piston. The second piston has a channel, and the second receiving space communicates with the adhesive outlet through the channel. The barrier is connected to the second piston and is used to block the channel. When the second piston abuts against the bottom wall of the receiving cavity, the first piston continues to move towards the second piston, so that the pressure in the second receiving space increases to the point that the barrier ruptures.

[0006] The hose assembly according to the first aspect of the present invention has at least the following beneficial effects:

[0007] When the adhesive is extruded from the tubing assembly, the push rod of the encapsulation equipment applies a thrust to the first piston, pushing it to move closer to the second piston. The thrust of the first piston, through the cleaning agent, acts on the second piston, further pushing it to expel the adhesive from the outlet. When the second piston abuts against the bottom wall of the receiving cavity, under the thrust of the push rod, the first piston can continue to move closer to the second piston, increasing the pressure in the second receiving space to the point that the barrier breaks, thus opening the channel. The cleaning agent can then flow out of the second receiving space and through the outlet to the dispensing nozzle to clean it. This eliminates the need to disassemble the dispensing nozzle, saving disassembly and installation time and achieving automatic nozzle cleaning, thereby improving the working efficiency of the encapsulation equipment.

[0008] According to some embodiments of the present invention, the barrier cap is sealed at one end of the channel near the first piston.

[0009] According to some embodiments of the present invention, the thickness of the barrier element is from 10 μm to 1000 μm.

[0010] According to some embodiments of the present invention, the barrier element is made of PP.

[0011] According to some embodiments of the present invention, the barrier is bonded to the second piston.

[0012] According to some embodiments of the present invention, the diameter of the channel is D, and the diameter of the receiving cavity is L, wherein D and L satisfy: 0.1≤D / L≤0.3.

[0013] According to some embodiments of the present invention, the bottom wall of the receiving cavity is recessed in a direction away from the first piston.

[0014] According to some embodiments of the present invention, the bottom wall of the receiving cavity is integrally spherical.

[0015] According to some embodiments of the present invention, the second piston includes a first connecting portion and a second connecting portion connected to the first connecting portion. The first connecting portion is provided with a first through hole, and the second connecting portion is provided with a second through hole. The first through hole and the second through hole communicate to form the channel, and the barrier is sandwiched between the first connecting portion and the second connecting portion.

[0016] According to a second aspect of the present invention, a packaging apparatus is used for packaging a soft-pack battery. The packaging apparatus includes a frame, a dispensing nozzle, and the adhesive tube assembly described in the above embodiments. The dispensing nozzle is disposed on the frame, and the tube body is detachably connected to the dispensing nozzle. The dispensing nozzle has an adhesive outlet communicating with the adhesive outlet.

[0017] The packaging apparatus according to a second aspect embodiment of the present invention has at least the following beneficial effects:

[0018] When encapsulating a soft-pack battery, an aluminum-plastic film covers the battery cell. The pusher of the encapsulation equipment applies a pushing force to the first piston, pushing it to move closer to the second piston. The pushing force of the first piston acts on the second piston through the cleaning agent, which in turn pushes the second piston to squeeze the adhesive out of the dispensing port. Then, the adhesive is applied to the folded edge of the aluminum-plastic film through the dispensing port to seal the aluminum-plastic film. When the second piston abuts against the bottom wall of the receiving cavity, the first piston can continue to move closer to the second piston to break the barrier, thereby opening the channel. The cleaning agent can then flow out of the second receiving space and through the dispensing port to the dispensing nozzle to clean the dispensing nozzle. There is no need to disassemble the dispensing nozzle, which saves the time of disassembling and installing the dispensing nozzle, realizes automatic cleaning of the dispensing nozzle, and thus improves the working efficiency of the encapsulation equipment.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the hose assembly according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the hose assembly according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the hose assembly according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly of the second piston and the barrier component according to an embodiment of the present invention.

[0025] Figure label:

[0026] Tube body 100, receiving cavity 110, bottom wall 111, first receiving space 112, second receiving space 113, dispensing port 120, first piston 200, second piston 300, channel 301, first connecting part 310, first through hole 311, second connecting part 320, second through hole 321, barrier 400. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] Reference Figures 1 to 3According to a first aspect of the present invention, a hose assembly includes a hose body 100, a first piston 200, a second piston 300, and a barrier member 400. The hose body 100 has a receiving cavity 110, and the bottom wall 111 of the receiving cavity 110 has an adhesive outlet 120. The first piston 200 is housed in the receiving cavity 110 and is movable along the axial direction of the hose body 100. The second piston 300 is housed in the receiving cavity 110 and is movable along the axial direction of the hose body 100. The second piston 300 is located between the bottom wall 111 of the receiving cavity 110 and the first piston 200. The hose body 100 between the second piston 300 and the adhesive outlet 120 forms a first receiving space 112 for receiving adhesive. The first receiving space 112 is used to receive adhesive. A second receiving space is formed between the second piston 300 and the first piston 200 for receiving cleaning agent. In the second receiving space 113, the second piston 300 is provided with a channel 301. The second receiving space 113 is connected to the dispensing port 120 through the channel 301. The barrier 400 is connected to the second piston 300 and is used to block the channel 301. When the second piston 300 abuts against the bottom wall 111 of the receiving cavity 110, the first piston 200 can squeeze the cleaning agent to break the barrier 400. After the glue is used up, the first piston 200 can continue to move in the direction close to the second piston 300 to break the barrier 400, thereby opening the channel 301. The cleaning agent can flow out of the second receiving space 113 and flow through the dispensing port 120 to the dispensing nozzle to clean the dispensing nozzle. There is no need to disassemble the dispensing nozzle, which can save the disassembly and installation time of the dispensing nozzle and realize the automatic cleaning of the dispensing nozzle, thereby improving the working efficiency of the packaging equipment.

[0032] Specifically, when the adhesive tube assembly extrudes adhesive, the push rod of the encapsulation equipment applies a thrust to the first piston 200, pushing the first piston 200 to move closer to the second piston 300. The thrust of the first piston 200 acts on the second piston 300 through the cleaning agent, thereby pushing the second piston 300 to squeeze the adhesive out of the dispensing port 120. When the second piston 300 abuts against the bottom wall 111 of the receiving cavity 110, the first piston 200 can continue to move closer to the second piston 300, so that the pressure in the second receiving space 113 increases to the point that the barrier 400 breaks, thereby opening the channel 301. The cleaning agent can then flow out of the second receiving space 113 and through the dispensing port 120 to the dispensing nozzle to clean it. This eliminates the need to disassemble the dispensing nozzle, saving disassembly and installation time and achieving automatic cleaning of the dispensing nozzle, thereby improving the working efficiency of the encapsulation equipment.

[0033] It should be noted that both the first piston 200 and the second piston 300 are fitted to the side wall of the receiving cavity 110 to seal the second receiving space 113, and no restrictions are imposed here.

[0034] Of course, in some specific embodiments, the first piston 200 and the second piston 300 can also seal the second accommodating space 113 by fitting a sealing ring, which will not be described in detail here.

[0035] Reference Figure 3 In some embodiments of the present invention, the barrier 400 is sealed at one end of the channel 301 near the first piston 200, so that when the cleaning agent squeezes the barrier 400, the barrier 400 can abut against the edge of the side wall of the channel 301, and the area of ​​the barrier 400 in the channel 301 can be torn from the edge of the side wall of the channel 301, making it easy to break the barrier 400.

[0036] Specifically, the area within the channel 301 where the projection of the barrier 400 on the axial direction of the first piston 200 is located is the rupture zone, and the area outside the rupture zone that connects with the second piston 300 is the connection zone. The boundary between the rupture zone and the connection zone is the edge of the side wall of the channel 301. The barrier 400 near the edge of the side wall of the channel 301 experiences the greatest deformation under stress, which makes it easier to break through the barrier 400.

[0037] It should be noted that if the barrier 400 is sealed at the end of the channel 301 away from the first piston 200, the edge of the side wall of the channel 301 will not abut against the barrier 400, and the push rod will need to apply a greater thrust to the first piston 200 to break the barrier 400. This will not be described in detail here.

[0038] In some embodiments of the present invention, the thickness of the barrier 400 is 10 μm to 1000 μm, which facilitates the first piston 200 to push the cleaning agent to break through the barrier 400.

[0039] Specifically, when the thickness of the barrier 400 is less than 10 μm, the barrier 400 is too thin, and it is easy for the barrier 400 to be squeezed and broken when the second piston 300 does not contact the bottom wall 111 of the receiving cavity 110, resulting in a large amount of glue and cleaning agent mixing, causing glue waste and interrupting the dispensing process; when the thickness of the barrier 400 is greater than 1000 μm, the barrier 400 is too thick, and it is inconvenient to squeeze and break the barrier 400.

[0040] It should be noted that the thickness of the barrier element 400 can be 10μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 150μm, 200μm, 250μm, 300μm, 350μm, 400μm, 450μm, 500μm, 550μm, 600μm, 650μm, 700μm, 750μm, 800μm, 850μm, 900μm, 950μm, or 1000μm, which will not be detailed here.

[0041] In some embodiments of the present invention, the barrier 400 is made of PP, which has good sealing performance and can effectively block the channel 301.

[0042] In some embodiments of the present invention, the barrier 400 is bonded to the second piston 300, which facilitates the installation of the barrier 400 and thereby improves the assembly efficiency of the barrier 400 and the second piston 300.

[0043] Specifically, when assembling the barrier component 400, an adhesive layer can be applied to the second piston 300 first, and then the barrier component 400 can be flatly attached to the adhesive layer. After the adhesive layer solidifies, the assembly of the barrier component 400 and the second piston 300 can be completed, which can improve the assembly efficiency of the barrier component 400 and the second piston 300.

[0044] In some embodiments of the present invention, the diameter of the channel 301 is D, and the diameter of the receiving cavity 110 is L, wherein D and L satisfy: 0.1≤D / L≤0.3, which facilitates the breaking of the barrier 400.

[0045] Specifically, if D / L is less than 0.1, the diameter of channel 301 is too small and cannot quickly break through the barrier 400. If D / L is greater than 0.3, the diameter of channel 301 is too large, and the contact area between the second piston 300 and the barrier 400 is too small. The second piston 300 cannot stably fix the barrier 400, and the barrier 400 is prone to falling off.

[0046] It should be noted that D / L can be 0.1, 0.15, 0.2, 0.25, or 0.3, and there are no restrictions here.

[0047] In some embodiments of the present invention, the bottom wall 111 of the receiving cavity 110 is recessed in a direction away from the first piston 200, which can buffer the cleaning agent to reduce the pressure of the cleaning agent.

[0048] Specifically, when the cleaning agent breaks through the barrier 400, the cleaning agent itself has a certain pressure. The bottom wall 111 of the receiving cavity 110 is recessed in a direction away from the first piston 200, so that a buffer space is formed between the second piston 300 and the bottom wall 111 of the receiving cavity 110, which can buffer the cleaning agent to reduce the pressure of the cleaning agent, thereby reducing the flow rate of the cleaning agent and ensuring that the cleaning agent can fully dissolve the glue residue on the dispensing nozzle.

[0049] It should be noted that the bottom wall 111 of the receiving cavity 110 is a spherical structure. The spherical structure can disperse the pressure of the cleaning agent from multiple directions to buffer the cleaning agent and reduce the flow rate of the cleaning agent.

[0050] Of course, in some specific embodiments, the bottom wall 111 of the receiving cavity 110 may also be a conical structure, which is not limited here.

[0051] Reference Figure 4 In some embodiments of the present invention, the second piston 300 includes a first connecting portion 310 and a second connecting portion 320 connected to the first connecting portion 310. The first connecting portion 310 is provided with a first through hole 311, and the second connecting portion 320 is provided with a second through hole 321. The first through hole 311 and the second through hole 321 communicate to form a channel 301. The barrier 400 is sandwiched between the first connecting portion 310 and the second connecting portion 320, which facilitates the assembly of the barrier 400.

[0052] Specifically, when assembling the barrier 400, the barrier 400 can be first flatly attached to the first connecting part 310, then the second connecting part 320 can be placed on the barrier 400, and then the first connecting part 310 and the second connecting part 320 can be fixedly connected to complete the assembly of the barrier 400. The operation is simple and facilitates the assembly of the barrier 400.

[0053] It should be noted that the first connecting part 310 and the second connecting part 320 can be bonded by applying glue or by a snap-fit ​​structure, etc., and there is no limitation here.

[0054] Reference Figure 1 , Figure 2 According to a second aspect of the present invention, the packaging equipment includes a frame, a dispensing nozzle, and a tube assembly according to a first aspect of the present invention. The dispensing nozzle is disposed on the frame, and the tube body 100 is detachably connected to the dispensing nozzle. The dispensing nozzle is provided with a dispensing hole communicating with the dispensing port 120, which can improve the working efficiency of the packaging equipment.

[0055] Specifically, when encapsulating a soft-pack battery, an aluminum-plastic film covers the battery cell. The pusher of the encapsulation equipment applies a pushing force to the first piston 200, pushing the first piston 200 to move closer to the second piston 300. The pushing force of the first piston 200 acts on the second piston 300 through the cleaning agent, thereby pushing the second piston 300 to squeeze the glue out of the glue outlet 120. Then, the glue is coated on the folded edge of the aluminum-plastic film through the glue outlet to seal the aluminum-plastic film. When the second piston 300 abuts against the bottom wall 111 of the receiving cavity 110, the first piston 200 can continue to move closer to the second piston 300 to break the barrier 400, thereby opening the channel 301. The cleaning agent can flow out of the second receiving space 113 and flow through the glue outlet 120 to the dispensing nozzle to clean the dispensing nozzle. There is no need to disassemble the dispensing nozzle, which can save the disassembly and installation time of the dispensing nozzle and realize the automatic cleaning of the dispensing nozzle, thereby improving the working efficiency of the encapsulation equipment.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A hose assembly, characterized by The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly.

2. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

3. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

4. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

5. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

6. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

7. The hose assembly of claim 1, wherein, The application relates to a glue pipe assembly.

8. A packaging apparatus for packaging a pouch battery, characterized by, The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. The application relates to a glue pipe assembly. 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