Liquid injection port sealing device

Abstract

The utility model belongs to the technical field of battery manufacturing, and particularly relates to a liquid injection port sealing device, which comprises a nail inserting mechanism and a nail detecting mechanism, the nail inserting mechanism comprises a clamping cylinder and a plurality of clamping jaws, the plurality of clamping jaws are distributed in a circular array, and the plurality of clamping jaws jointly form a clamping space for a plastic nail to extend into; a net-shaped structure is arranged on the surface of one side, close to the clamping space, of each clamping jaw; the clamping air cylinder can drive the multiple clamping jaws to be close to or away from each other. Compared with the prior art, the liquid injection port sealing device disclosed by the utility model can be used for stably clamping a plastic nail and ensuring that the plastic nail can be effectively driven into a liquid injection port in a battery.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, and in particular relates to a liquid injection port sealing device. Background Technology

[0002] After the formation process, the pallets containing the batteries are transported to the logistics line by a stacker crane. The logistics line then transports the pallets to the nailing machine, which then clamps the glue nails and seals the electrolyte filling port of each battery in the pallet.

[0003] Existing battery insertion machines include an insertion mechanism and a detection mechanism, which are spaced apart. While the insertion mechanism inserts a battery, the detection mechanism checks the previously inserted battery to ensure the insertion of the adhesive pin. The current insertion mechanism includes grippers. During insertion, the grippers hold the adhesive pin and drive it vertically into the electrolyte inlet. However, electrolyte sometimes splashes out from the inlet. When the electrolyte adheres to the grippers, the contact surface between the grippers and the adhesive pin easily slips, resulting in insufficient friction between the pin and the grippers, preventing the pin from being effectively driven into the inlet. Therefore, improvements to the existing battery insertion machine are needed. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a liquid injection port sealing device. This device can stably clamp the rubber nail, ensuring that the rubber nail can be effectively driven into the liquid injection port on the battery.

[0005] In view of this, the present invention provides a sealing device for an injection port, including a pin insertion mechanism, the pin insertion mechanism comprising:

[0006] Multiple grippers are arranged in a circular array, and together they form a clamping space for the adhesive pins to be inserted. The surface of the grippers near the clamping space is provided with a mesh structure.

[0007] The clamping cylinder can drive multiple grippers to move closer or further apart.

[0008] In this technical solution, the clamping cylinder drives the clamping jaws to move away from each other, which expands the clamping space, allowing the rubber nail to be inserted into the clamping space. The clamping cylinder also drives the clamping jaws to move closer together, so that the surface of the clamping jaws near the clamping space contacts the side wall of the rubber nail, thus clamping the rubber nail in the clamping space. A mesh structure is provided on the surface of the clamping jaws near the clamping space, which can increase the friction between the clamping jaws and the rubber nail, and improve the clamping stability of the clamping jaws on the rubber nail.

[0009] In the above technical solution, the injection port sealing device further includes a fixing plate and a nail detection mechanism, with the nail insertion mechanism and the nail detection mechanism being distributed at intervals on the fixing plate along the first direction.

[0010] In the above technical solution, furthermore, the fixing plate is provided with multiple sets of mounting holes at intervals along the first direction, and each set of mounting holes can be connected to the pin insertion mechanism or the pin detection mechanism.

[0011] In the above technical solution, the insertion mechanism further includes a fixed seat and a bushing. The clamping cylinder is connected to the fixed seat, the bushing is mounted on the fixed seat, the bushing is coaxially distributed with the clamping space, and the bushing can be connected to the control end.

[0012] In the above technical solution, the nail detection mechanism further includes:

[0013] The nail detection cylinder is mounted on the fixed plate.

[0014] The movable seat can move in the second direction under the drive of the nail detection cylinder;

[0015] The nail detector rod is slidably mounted on the movable seat in the second direction, and the bottom surface of the nail detector rod can contact the rubber nail.

[0016] The detection component can determine whether a nail detector rod has been detected.

[0017] In the above technical solution, the detection component further includes a light-shielding baffle and a photoelectric beam sensor. The light-shielding baffle is located at the end of the nail detection rod away from the glue nail, and the photoelectric beam sensor is located on the movable seat. When the light-shielding baffle enters the slot of the photoelectric beam sensor, it will obstruct the reception of photoelectric signals in the photoelectric beam sensor.

[0018] In the above technical solution, a photoelectric adjustment seat is further provided on the movable seat, the photoelectric adjustment seat can adjust its position along the second direction on the movable seat, and the photoelectric through-beam sensor is provided on the photoelectric adjustment seat.

[0019] In the above technical solution, further, the photoelectric adjustment seat is provided with an adjustment through groove, the movable seat is provided with a threaded hole, the spacing of the adjustment through groove in the second direction is greater than the diameter of the threaded hole, and the threaded end of the adjustment screw passes through the adjustment through groove and is threadedly connected to the threaded hole.

[0020] In the above technical solution, a further step is to provide a nail detection base at the end of the nail detection rod near the nail. The bottom area of ​​the nail detection base is larger than the top surface area of ​​the nail. During the arc movement of the nail detection base with the axis of the clamping space as the center, the nail detection base can contact the nail within a 30-degree change in the center angle.

[0021] In the above technical solution, a guide rail is further provided on the movable seat, and a slider is slidably provided on the guide rail along the second direction, with the nail detection rod disposed on the slider.

[0022] The beneficial effects of this utility model are:

[0023] 1. By cooperating with the clamping cylinder and multiple jaws, the rubber nail can be clamped. A mesh structure is provided on the surface of the jaws near the clamping space, which can increase the friction between the jaws and the rubber nail and improve the clamping stability of the jaws on the rubber nail.

[0024] 2. By using a fixing plate to connect the insertion mechanism and the detection mechanism at intervals, the previous battery can be detected while the next battery is being inserted, improving the efficiency of battery insertion. Multiple sets of mounting holes are spaced along the first direction on the fixing plate, each set connecting to either the insertion mechanism or the detection mechanism. The spacing between adjacent sets of mounting holes is designed to accommodate two commonly used battery placement intervals. Therefore, when inserting batteries from different batches, the spacing between the insertion and detection mechanisms can be adjusted simply by connecting the corresponding mounting holes, reducing the number of steps and simplifying the adjustment process.

[0025] 3. By designing the detection component as a light-shielding baffle that works in conjunction with the photoelectric through-beam sensor, there is no need for physical contact between the nail detection rod and the detection component, thus preventing wear and improving the accuracy of the nail detection mechanism.

[0026] 4. By making the bottom surface area of ​​the detection base larger than the top surface area of ​​the glue nail, and ensuring that the detection base can still contact the glue nail after making a certain angle arc movement, the control end can apply a rotational force to the glue nail through the insertion mechanism when the insertion mechanism inserts the glue nail into the liquid injection port, making it easier for the glue nail to be inserted into the liquid injection port. At the same time, it can also ensure that the detection mechanism can still detect the glue nail on the other battery after the insertion mechanism rotates. Attached Figure Description

[0027] 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 these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention in the first direction.

[0029] Figure 2 This is a three-dimensional structural diagram of the second direction of this utility model.

[0030] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0031] Figure 4 This is a three-dimensional structural diagram of the nail detection mechanism in this utility model, showing the hidden nail detection cylinder.

[0032] Figure 5 This is a schematic diagram of the main structure of the nail detection mechanism of this utility model, showing the hidden nail detection cylinder.

[0033] Figure 6 This is a schematic diagram of the present invention in operation.

[0034] The markings in the diagram are as follows:

[0035] 1. Pin insertion mechanism; 101. Gripper; 102. Mesh structure; 103. Clamping cylinder; 2. Fixing plate; 3. Fixing base; 4. Bushing; 501. Pin detection cylinder; 502. Movable seat; 503. Pin detection rod; 6. Detection piece; 601. Light-shielding baffle; 602. Photoelectric through-beam sensor; 603. Photoelectric adjustment seat; 604. Adjustment slot; 605. Adjustment screw; 7. Pin detection base; 8. Guide rail; 9. Slider; 100. Battery; 200. Adhesive pin; 300. Control end; X, first direction; Y, second direction; Detailed Implementation

[0036] 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 protection scope of the present utility model.

[0037] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] Example 1

[0039] like Figures 1-6 As shown, this embodiment provides a liquid injection port sealing device, including a pin insertion mechanism 1, a pin detection mechanism, and a fixing plate 2, wherein the pin insertion mechanism 1 and the pin detection mechanism are distributed at intervals on the fixing plate 2 along the first direction X;

[0040] The pin insertion mechanism 1 includes: a fixed base 3, a bushing 4, a clamping cylinder 103, and multiple grippers 101;

[0041] Please see Figure 1 Multiple grippers 101 are arranged in a circular array at the bottom of the gripping cylinder 103, and the multiple grippers 101 together form a gripping space for the adhesive nail 200 to extend into.

[0042] Please see Figure 2 The fixed base 3 is connected to the fixed plate 2. The clamping cylinder 103 is set at the bottom of the fixed base 3, and the bushing 4 is set at the top of the fixed base 3. The bushing 4 is coaxially distributed with the clamping space. The bushing 4 can be connected to the control terminal 300. In this embodiment, the control terminal 300 can be understood as the control drive unit on a traditional nail insertion machine. The control terminal 300 can drive the bushing 4 to move horizontally, thereby driving the liquid injection port sealing device of this embodiment to move horizontally. The control terminal 300 can also drive the bushing 4 to rotate coaxially, thereby driving the nail insertion mechanism 1 to rotate coaxially, and through the fixed plate 2, drive the nail detection mechanism to move in an arc around the axis of the bushing 4.

[0043] The clamping cylinder 103 can drive multiple clamping jaws 101 to move closer or further apart. When the clamping cylinder 103 drives these clamping jaws 101 to move further apart, the clamping space can be expanded, allowing the plastic nail 200 to be inserted into the clamping space. When the clamping cylinder 103 drives these clamping jaws 101 to move closer together, the surfaces of these clamping jaws 101 that are close to the clamping space come into contact with the side walls of the plastic nail 200, thus clamping the plastic nail 200 in the clamping space.

[0044] To address the issue of slippage between the gripper 101 and the adhesive pin 200, this embodiment provides a mesh structure 102 on the surface of the gripper 101 near the clamping space. (See also...) Figure 3 The mesh structure 102 can be multiple elastic strips protruding from the surface of the gripper 101 and adapted to the circumferential surface of the nail 200. In this way, when gripping the nail 200, the contact area between the gripper 101 and the nail 200 can be increased, thereby increasing the friction between the gripper 101 and the nail 200 and improving the gripping stability of the gripper 101 on the nail 200.

[0045] Example 2

[0046] This embodiment provides a liquid injection port sealing device, which, in addition to including the feature structures in the aforementioned embodiments, also optimizes the structure of the fixing plate 2;

[0047] Multiple sets of mounting holes (not shown in the figure) are provided at intervals along the first direction X on the side wall of the fixing plate 2. Each set of mounting holes can be connected to the pin insertion mechanism 1 or the pin detection mechanism. Specifically, the connecting parts of the pin insertion mechanism 1 and the pin detection mechanism are provided with connecting screw holes that are adapted to the mounting holes. The pin insertion mechanism 1 and the pin detection mechanism are connected to the fixing plate 2 by the cooperation of the connecting screw and the mounting holes and the connecting screw holes.

[0048] The spacing between adjacent mounting holes is designed to be the common spacing between two batteries 100. This way, when inserting batteries 100 from different batches, the spacing between the insertion mechanism 1 and the inspection mechanism can be adjusted simply by connecting the corresponding mounting holes. This reduces the number of operation steps and makes adjustment convenient.

[0049] Example 3

[0050] This embodiment provides a liquid injection port sealing device, which, in addition to the feature structures in the aforementioned embodiments, also discloses a structure of a nail detection mechanism;

[0051] In this embodiment, the nail detection mechanism includes: a nail detection cylinder 501, a movable seat 502, a nail detection rod 503, and a detection component 6.

[0052] Please see Figure 1 or Figure 2 The nail detection cylinder 501 is mounted on the fixed plate 2;

[0053] Please see Figure 4 The movable seat 502 includes an L-shaped plate and a mounting plate. The L-shaped plate is fixedly connected to the mounting plate and is connected to the output rod on the nail detection cylinder 501. The L-shaped plate can move along the second direction Y under the drive of the nail detection cylinder 501. During the movement, the L-shaped plate will move synchronously with the mounting plate.

[0054] The nail detection rod 503 is slidably mounted on the movable seat 502 along the second direction Y. The bottom surface of the nail detection rod 503 can contact the adhesive nail 200. For details, please refer to [link / reference needed]. Figure 4 The movable seat 502 is provided with a guide rail 8, and a slider 9 is slidably provided on the guide rail 8 along the second direction Y. The nail detection rod 503 is provided on the slider 9.

[0055] Detection component 6 can determine whether glue nail 200 has been detected;

[0056] In this embodiment, please refer to Figure 6Multiple batteries 100 are placed at intervals along the first direction X on a tray. After the insertion mechanism 1 inserts a battery 100, it will be driven by the control terminal 300 to retrieve a new adhesive nail 200 from the nail removal point, and then move to the next battery 100 to repeat the insertion operation. In the initial state of the nail detection mechanism, the detection element 6 is located on the side of the detection rod 503 away from the adhesive nail 200. While the insertion mechanism 1 inserts the next battery 100, the nail detection cylinder 501 drives the movable seat 502, the nail detection rod 503, and the detection element 6 to approach the adhesive nail 200 on the previous battery 100. When the nail 200 is contacted, the nail detection cylinder 501 continues to drive. At this time, the nail detection rod 503 will be pressed against the movable seat 502 by the nail 200 and move away from the nail 200. When the nail detection cylinder 501 reaches the end of the drive, if the detection element 6 detects the nail 200, it means that the nail 200 is driven into the electrolyte port of the battery 100. At this time, the electrolyte port sealing device continues to insert and detect the nail. If the detection element 6 does not detect the nail 200, it means that the nail 200 is not driven into the electrolyte port of the battery 100. At this time, the whole machine will issue an alarm to remind the worker to check and debug the equipment.

[0057] Example 4

[0058] This embodiment provides a liquid injection port sealing device, which, in addition to including the feature structures in the aforementioned embodiments, also discloses a structure of the detection element 6;

[0059] Please see Figure 4 In this embodiment, the detection component 6 includes a light-shielding baffle 601 and a photoelectric beam sensor 602. The light-shielding baffle 601 is disposed at the end of the nail detection rod 503 away from the glue nail 200, and the photoelectric beam sensor 602 is disposed on the movable seat 502. When the light-shielding baffle 601 enters the slot of the photoelectric beam sensor 602, it will block the reception of photoelectric signals, thereby realizing the nail detection logic judgment.

[0060] In the initial state of the nail detection mechanism, the photoelectric sensor 602 and the light-shielding baffle 601 are misaligned, and the photoelectric signal reception in the photoelectric sensor 602 is not obstructed. During nail detection, if the adhesive nail 200 is driven into the electrolyte inlet of the battery 100, when the nail detection cylinder 501 reaches the drive end point, as the nail detection rod 503 moves with the light-shielding baffle 601, the light-shielding baffle 601 can enter the slot of the photoelectric sensor 602. At this time, the light-shielding baffle 601 can prevent the nail from being driven into the slot of the photoelectric sensor 602. Photoelectric signal reception; if the glue nail 200 is not driven into the liquid filling port of the battery 100, when the nail detection cylinder 501 reaches the driving end point, the photoelectric through-beam sensor 602 and the light shield 601 are still misaligned, and the photoelectric signal reception in the photoelectric through-beam sensor 602 will not be obstructed. In this way, each time the nail is detected, it is only necessary to observe whether the photoelectric signal reception in the photoelectric through-beam sensor 602 is obstructed to determine whether the glue nail 200 is driven into the liquid filling port of the battery 100.

[0061] Of course, the light-shielding baffle 601 can also be set on the movable seat 502, and the photoelectric beam sensor 602 can be set on the nail detection rod 503.

[0062] Example 5

[0063] This embodiment provides a liquid injection port sealing device, which, in addition to including the feature structures in the aforementioned embodiments, also optimizes the setting of the detection element 6;

[0064] Please see Figure 4 In this embodiment, a photoelectric adjustment seat 603 is provided on the movable seat 502. The photoelectric adjustment seat 603 can adjust its position on the movable seat 502 along the second direction Y. The photoelectric through-beam sensor 602 is provided on the photoelectric adjustment seat 603.

[0065] For details, please refer to Figure 5 The photoelectric adjustment seat 603 is provided with an adjustment slot 604, and the movable seat 502 is provided with a threaded hole (not shown in the figure). The spacing of the adjustment slot 604 in the second direction Y is greater than the diameter of the threaded hole. The threaded end of the adjustment screw 605 passes through the adjustment slot 604 and is threadedly connected to the threaded hole. Tightening the adjustment screw 605 can fix the photoelectric adjustment seat 603 on the movable seat 502. When it is necessary to adjust the position of the photoelectric adjustment seat 603, the adjustment screw 605 is loosened. At this time, the adjustment slot 604 can move relative to the adjustment screw 605 in the second direction Y. When the photoelectric adjustment seat 603 moves to the appropriate position, the adjustment screw 605 is tightened again, which completes the position adjustment of the photoelectric adjustment seat 603 on the movable seat 502. This facilitates the debugging of the nail detection mechanism before the nail detection operation, thereby determining the driving end point position of the nail detection cylinder 501.

[0066] Example 6

[0067] This embodiment provides a liquid injection port sealing device, which, in addition to including the feature structures in the aforementioned embodiments, also optimizes the structure of the detection rod 503;

[0068] Please see Figure 1 and Figure 6 The nail detection rod 503 is provided with a nail detection base 7 at one end near the adhesive nail 200. The bottom surface area of ​​the nail detection base 7 is larger than the top surface area of ​​the adhesive nail 200. During the arc movement of the nail detection base 7 with the axis of the clamping space as the center, the nail detection base 7 can contact the adhesive nail 200 within a change of 30 degrees in the center angle.

[0069] Sometimes, during the process of inserting the glue nail 200 into the injection port by the nail insertion mechanism 1, the nail insertion mechanism 1 will apply a rotational force to the glue nail 200. The entire process of the glue nail 200 entering the injection port is like screwing in a screw. The glue nail 200 enters the injection port in a spiral motion. Therefore, when the control end 300 drives the nail insertion mechanism 1 to rotate coaxially, the nail detection mechanism will move in an arc around the rotation axis of the nail insertion mechanism 1. The rotation angle of the glue nail 200 is generally around 30 degrees. Therefore, the bottom surface of the nail detection base 7 is designed to be larger so that during the arc movement of the nail detection mechanism, the nail detection base 7 can contact the glue nail 200 within a 30-degree change in the center angle. This can avoid the nail detection base 7 failing to contact the glue nail 200 during the arc movement of the nail detection mechanism, thus preventing the detection element 6 from failing to detect the glue nail 200 and issuing an incorrect alarm.

[0070] The embodiments of the present invention have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A liquid injection port sealing device comprising a plug mechanism (1), characterized in that, The plug-in mechanism (1) comprises: A plurality of clamping jaws (101) are arranged in a circular array, and the plurality of clamping jaws (101) jointly form a clamping space for the rubber nails (200) to extend into. The surface of the clamping jaw (101) near the clamping space is provided with a mesh structure (102). A clamping cylinder (103) can drive the plurality of clamping jaws (101) to move closer to or away from each other.

2. The fill port closure of claim 1, wherein: The liquid injection port sealing device further comprises a fixed plate (2) and a nail detection mechanism. The plug-in mechanism (1) and the nail detection mechanism are spaced apart along the first direction (X) on the fixed plate (2).

3. The fill port closure of claim 2, wherein: A plurality of groups of mounting holes are arranged on the fixed plate (2) along the first direction (X). Each group of mounting holes can be connected with the plug-in mechanism (1) or the nail detection mechanism.

4. The fill port closure of claim 2, wherein: The plug-in mechanism (1) further comprises a fixed seat (3) and a shaft sleeve (4). The clamping cylinder (103) is connected with the fixed seat (3). The shaft sleeve (4) is arranged on the fixed seat (3). The shaft sleeve (4) is coaxially arranged with the clamping space. The shaft sleeve (4) can be connected with a control end (300).

5. The fill port closure of claim 4, wherein, The nail detection mechanism comprises: A nail detection cylinder (501) is arranged on the fixed plate (2). An activity seat (502) can move along the second direction (Y) under the drive of the nail detection cylinder (501). A nail detection rod (503) is slidably arranged on the activity seat (502) along the second direction (Y). The bottom surface of the nail detection rod (503) can contact the rubber nail (200). A detection piece (6) can determine whether the nail detection rod (503) is detected.

6. The fill port closure of claim 5, wherein: The detection piece (6) comprises a light shielding baffle (601) and a photoelectric opposite sensor (602). The light shielding baffle (601) is arranged at one end of the nail detection rod (503) away from the rubber nail (200). The photoelectric opposite sensor (602) is arranged on the activity seat (502). When the light shielding baffle (601) enters the groove of the photoelectric opposite sensor (602), the photoelectric signal reception of the photoelectric opposite sensor (602) is hindered.

7. The fill port closure of claim 6, wherein: An optoelectronic adjusting seat (603) is arranged on the activity seat (502). The optoelectronic adjusting seat (603) can adjust the position on the activity seat (502) along the second direction (Y). The photoelectric opposite sensor (602) is arranged on the optoelectronic adjusting seat (603).

8. The fill port closure of claim 7, wherein: An adjusting through groove (604) is arranged on the optoelectronic adjusting seat (603). A threaded hole is arranged on the activity seat (502). The distance of the adjusting through groove (604) along the second direction (Y) is greater than the diameter of the threaded hole. The threaded end of an adjusting screw (605) is screwed with the threaded hole after passing through the adjusting through groove (604).

9. The fill port closure of claim 5, wherein: The detecting nail rod (503) is provided with a detecting nail base (7) at one end close to the glue nail (200), the bottom surface area of the detecting nail base (7) is greater than the top surface area of the glue nail (200), and the detecting nail base (7) can contact the glue nail (200) within a 30-degree center angle change during arc motion with the axis of the clamping space as the center.

10. The fill port closure of claim 5, wherein: The movable seat (502) is provided with a guide rail (8), the guide rail (8) is provided with a sliding block (9) sliding in a second direction (Y), and the detecting nail rod (503) is arranged on the sliding block (9).

Images