Desktop type liquid injection machine

Abstract

The utility model discloses a desktop type liquid injection machine which comprises a base, a machine box arranged on the rear portion of the base, a cavity locking mechanism and a clamp mechanism, the cavity locking mechanism and the clamp mechanism are arranged on the front portion of the base left and right side by side, a vertical partition plate is arranged in the machine box to divide an equipment cavity and a control cavity, the control cavity is located behind the clamp mechanism, and the equipment cavity is located above and behind the cavity locking mechanism; the cavity locking mechanism is a box body with one open surface; a liquid injection hole is formed in the top surface of the box body; the clamp mechanism comprises a clamp guide rail, a clamp sliding seat slidably arranged on the clamp guide rail, a clamp cover plate vertically arranged at the right end of the clamp sliding seat and a battery clamp mounted on the left side surface of the clamp cover plate, and when the clamp sliding seat slides to the leftmost end of the clamp guide rail, the box body and the clamp cover plate are matched and locked to form a closed liquid injection cavity. The desktop type liquid injection machine provided by the utility model is small in occupied space and simple and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a desktop liquid injection machine. Background Art

[0002] Lithium battery is a high-tech green new energy product. In the traditional lithium battery filling production, the battery box filling hole is too small, resulting in the filling production often being done manually, which not only hinders the improvement of filling efficiency, but also because manual filling requires direct contact with the electrolyte, which can easily cause physical harm to personnel. At the same time, improper operation by personnel can also easily affect the safety performance of the battery.

[0003] Therefore, technicians have developed a battery filling machine that can automatically fill lithium batteries, which can effectively reduce production costs and improve production efficiency, and is widely used in lithium battery production lines. However, most of the automatic battery filling machines on the market are large-scale automated equipment integrated into the production line, which are only suitable for large-scale processing, occupy a large area, are complex to operate, and require multiple workers to work together, which is difficult to meet the needs of users to make or repair a small number of batteries. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a desktop liquid injection machine which occupies less space and is simple and convenient to operate.

[0005] The utility model solves the technical problem by adopting the following technical scheme: a desktop liquid injection machine, comprising a base, a case arranged at the rear of the base, and a lock cavity mechanism and a clamp mechanism arranged side by side at the front of the base; a vertical partition is arranged in the case to separate an equipment cavity and a control cavity; the control cavity is located at the rear of the clamp mechanism, and the equipment cavity is located above and behind the lock cavity mechanism; the lock cavity mechanism is a box body with an open side, and a liquid injection hole is arranged on the top surface of the box body; the clamp mechanism comprises a clamp guide rail, a clamp guide rail slidably arranged on the clamp guide rail, and a clamp mechanism arranged on the clamp guide rail. A clamp slide on the rail, a clamp cover plate vertically arranged at the right end of the clamp slide and a battery clamp installed on the left side of the clamp cover plate. When the clamp slide slides to the leftmost end of the clamp guide rail, the box body and the clamp cover plate cooperate to seal to form a closed injection chamber; the equipment chamber is provided with an injection cylinder and an injection needle in the cavity above the locking chamber mechanism. The injection cylinder is used to drive the injection needle to perform lifting movement in the vertical direction so that the injection needle passes downward through the injection hole to inject liquid into the battery. The injection needle is connected to an injection pump.

[0006] The above technology provides a desktop liquid filling machine that can fill one battery at a time. It adopts a desktop design, is small in size, occupies little space, is easy to operate, and can meet the needs of users to make or repair a small number of batteries.

[0007] In a preferred technical solution, a liquid receiving box mechanism is also provided in the equipment cavity, and the liquid receiving box mechanism includes a liquid receiving guide rail, a liquid receiving cylinder and a liquid receiving box; the liquid receiving guide rail is provided on the outer wall of the top surface of the box body, the liquid receiving cylinder is installed at the rear end of the liquid receiving guide rail, the telescopic rod of the liquid receiving cylinder is connected to the rear end of the liquid receiving box, and the liquid receiving box is slidably provided on the liquid receiving guide rail; a liquid receiving plate is provided at the front end of the liquid receiving box, a flat surface is provided at the bottom of the liquid receiving plate, and a groove is provided on the top surface of the liquid receiving plate; when the liquid receiving box is moved to the front end of the liquid receiving guide rail, the bottom plane of the liquid receiving plate closes the injection hole, and the groove on the top surface of the liquid receiving plate is located directly below the injection needle, which is used to catch the liquid dripping from the injection needle to avoid contaminating the equipment cavity.

[0008] In a preferred technical solution, a vacuum control valve is provided at the rear of the box body of the locking chamber mechanism, one port of the vacuum control valve is connected to the injection chamber, and the other port of the vacuum control valve is connected to the external air for evacuating the injection chamber.

[0009] In a preferred technical solution, a sealing mechanism is also provided at the upper end of the box body, and the sealing mechanism includes a first sealing cylinder and a second sealing cylinder respectively arranged on the upper parts of the front and rear side plates of the box body, a heating front mold driven by the first sealing cylinder, a heating rear mold driven by the second sealing cylinder, and a sealing guide rail arranged on the top surface of the inner cavity of the box body. The heating front mold and the heating rear mold are arranged opposite to each other and are both slidably arranged on the sealing guide rail. The heating front mold cooperates with the heating rear mold to realize the battery sealing function.

[0010] In a preferred technical solution, a liquid storage tank is also provided in the equipment cavity, and the liquid storage tank is connected to the liquid injection pump through a liquid inlet valve to realize an automatic liquid inlet function.

[0011] In a preferred technical solution, the battery clamp includes a front clamp, a rear clamp and a clamp bottom plate, the rear clamp is arranged on the left side wall of the clamp cover in the vertical direction; two long through holes are provided on the left and right sides of the rear clamp in the vertical direction, the rear side of the clamp bottom plate is adjustable up and down on the front side of the rear clamp through the two long through holes, the front side of the clamp bottom plate is adjustable up and down on the top surface of the clamp bottom plate through the three short through holes. In this technology, the height of the clamp bottom plate and the distance between the front and rear clamps can be adjusted, which can be applied to batteries of different lengths and thicknesses.

[0012] In a preferred technical solution, the battery clamp also includes two limit members, the rear ends of which are adjustably arranged on the top surface of the rear clamp along the left and right directions, and the front ends of the two limit members constitute two relatively bent L-shaped structures to fix the opened battery between the two limit members, effectively preventing the battery from moving left and right and affecting the accuracy of liquid injection.

[0013] In a preferred technical solution, the back of the chassis is equipped with an equipment box door and a control box door, the equipment box door is hinged and rotatably arranged at the side end of the equipment cavity, and the control box door is hinged and rotatably arranged at the side end of the control cavity. This technology prevents dust and moisture from entering the chassis to damage the equipment in the equipment cavity and the controller in the control cavity by installing the equipment box door and the control box door on the back of the chassis. In addition, when repairing, only the box door needs to be opened, which is convenient for subsequent repair and maintenance of the whole machine.

[0014] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the utility model are: the present application provides a desktop liquid filling machine, which adopts a desktop design, is small in size, occupies little space, is simple and convenient to operate, and can complete vacuum liquid filling, normal liquid filling, vacuum standing, vacuum sealing, automatic liquid filling and other functions, which can meet the needs of users to make or repair a small number of batteries.

[0015] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of the desktop liquid injection machine of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the desktop liquid injection machine of the utility model;

[0019] Figure 3 Another schematic diagram of the internal structure of the desktop liquid injection machine of the utility model;

[0020] Figure 4 This is a structural schematic diagram of the sealing mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the battery clamp of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] Reference Figure 1-5 A desktop liquid filling machine according to an embodiment of the utility model is described.

[0025] In one embodiment, if Figure 1-3 As shown, a desktop liquid injection machine includes a base 100, a chassis arranged at the rear of the base 100, and a lock cavity mechanism 2 and a clamp mechanism 1 arranged side by side at the front of the base 100. A vertical partition is arranged in the chassis to separate a device cavity 201 and a control cavity 202. The control cavity 202 is located at the rear of the clamp mechanism 1, and the device cavity 201 is located above and behind the lock cavity mechanism 2.

[0026] The lock chamber mechanism 2 is a box body with one side open, and a liquid injection hole is provided on the top surface of the box body.

[0027] The clamp mechanism 1 includes a clamp rail 11, a clamp slide 12 slidably disposed on the clamp rail 11, a clamp cover 13 vertically disposed at the right end of the clamp slide 12, and a battery clamp 14 mounted on the left side of the clamp cover 13. When the clamp slide 12 slides to the leftmost end of the clamp rail 11, the box body and the clamp cover 13 cooperate to seal to form a closed liquid injection chamber.

[0028] The equipment cavity 201 is provided with an injection cylinder 3 and an injection needle 4 in the cavity located above the lock cavity mechanism 2. The injection cylinder 3 is used to drive the injection needle 4 to move up and down in the vertical direction so that the injection needle 4 passes downward through the injection hole to inject liquid into the battery. The injection needle 4 is connected to the injection pump 40.

[0029] Among them, the box body of the lock cavity mechanism 2 is surrounded by three side panels with the bottom ends installed on the base 100, a top plate arranged at the top of the three side panels and a bottom plate arranged at the bottom of the three side panels. The left end of the clamp guide rail 11 is arranged on the base 100 below the bottom plate, and the right end is located in front of the control cavity 202. The bottom of the battery clamp 14 is higher than the bottom plate. When the box body and the clamp cover plate 13 are blocked together, the clamp cover plate 13, the three side panels, the bottom plate and the top plate together constitute a closed injection cavity, and the battery clamp 14 is located in the injection cavity with the battery clamped; the battery clamp 14 is used to place the expanded battery; the injection pump 40 can adopt the high-precision injection pump commonly used in the prior art to achieve accurate quantitative injection of the battery, and the injection needle 4 rises and retracts after the injection is completed; the high-precision injection pump is controlled by a PLC (Programmable Logic Controller) to ensure the injection accuracy, and the PLC can be installed in the control cavity 202. In specific implementation, the desktop liquid filling machine can fill one battery at a time, and is very suitable for the production or maintenance of a small number of batteries, such as laboratory battery sample production or old battery refilling operation.

[0030] The desktop liquid filling machine provided in the above embodiment adopts a desktop design, is small in size, occupies little space, is easy to operate, and can meet the needs of users to make or repair a small number of batteries; in addition, the above desktop liquid filling machine is an integrated design, which is easy to move and can be used in different occasions and locations.

[0031] In this embodiment, a liquid receiving box 6 mechanism is also provided in the equipment cavity 201, and the liquid receiving box 6 mechanism includes a liquid receiving guide rail, a liquid receiving cylinder 5 and a liquid receiving box 6; the liquid receiving guide rail is arranged on the outer wall of the top surface of the box body, the liquid receiving cylinder 5 is installed at the rear end of the liquid receiving guide rail, the telescopic rod of the liquid receiving cylinder 5 is connected to the rear end of the liquid receiving box 6, and the liquid receiving box 6 can be slidably arranged on the liquid receiving guide rail; a liquid receiving plate 60 is provided at the front end of the liquid receiving box 6, a plane is provided at the bottom of the liquid receiving plate 60, and a groove is provided on the top surface of the liquid receiving plate 60; when the liquid receiving box 6 moves to the front end of the liquid receiving guide rail, the bottom plane of the liquid receiving plate 60 closes the injection hole, and the groove on the top surface of the liquid receiving plate 60 is located directly below the injection needle 4, which is used to catch the liquid drops from the injection needle 4 to avoid contaminating the equipment cavity 201.

[0032] In specific implementation, the liquid receiving box 6 cooperates with the liquid receiving cylinder 5, the bottom plane of the liquid receiving plate 60 seals the liquid injection hole at the top of the liquid injection cavity, and the top surface groove of the liquid receiving plate 60 is used to receive the liquid. The liquid receiving box 6 can be retracted during liquid injection, and the leaking liquid injection hole is injected by the liquid injection needle 4. When no liquid is injected, vacuum is drawn or vacuum sealing is performed, the liquid receiving box 6 is extended, so that the liquid receiving plate 60 blocks the liquid injection hole and is located directly below the liquid injection needle 4 to achieve liquid reception.

[0033] In this embodiment, a vacuum control valve 7 is provided at the rear of the box body of the locking chamber mechanism 2, one port of the vacuum control valve 7 is connected to the liquid injection chamber, and the other port of the vacuum control valve 7 is connected to the external air for evacuating the liquid injection chamber.

[0034] In this embodiment, if Figure 4 As shown, a sealing mechanism 8 is also provided at the upper end of the box body, and the sealing mechanism 8 includes a first sealing cylinder 81 and a second sealing cylinder 82 respectively arranged on the upper parts of the front and rear side plates of the box body, a heating front mold 83 driven by the first sealing cylinder 81, a heating rear mold 84 driven by the second sealing cylinder 82, and a sealing guide rail 85 arranged on the top surface of the inner cavity of the box body. The heating front mold 83 and the heating rear mold 84 are arranged opposite to each other and are both slidably arranged on the sealing guide rail 85. The heating front mold 83 cooperates with the heating rear mold 84 to realize the battery sealing function.

[0035] The heated front mold 83 and the heated rear mold 84 are each controlled by a sealing cylinder and move forward and backward along the sealing guide rail 85 .

[0036] In this embodiment, a liquid storage tank 9 is further provided in the equipment cavity 201 , and the liquid storage tank 9 is connected to the liquid injection pump 40 via a liquid inlet valve to realize an automatic liquid inlet function.

[0037] In this embodiment, if Figure 5 As shown, the battery clamp 14 includes a front clamp plate 141, a rear clamp plate 142 and a clamp bottom plate 143. The rear clamp plate 142 is arranged on the left side wall of the clamp cover 13 in the vertical direction; the left and right sides of the rear clamp plate 142 are provided with two long through holes in the vertical direction, and the rear side of the clamp bottom plate 143 is adjustable up and down on the front side of the rear clamp plate 142 through the two long through holes, and the front side of the clamp bottom plate 143 is provided with three short through holes in the front and rear direction, and the front clamp plate 141 is adjustable up and down on the top surface of the clamp bottom plate 143 through the three short through holes.

[0038] In specific implementation, the opened battery is placed vertically between the front and rear clamping plates 142. The rear clamping plate 142 is equipped with a clamp bottom plate 143 that can be adjusted up and down through two vertically arranged long through holes. The clamp bottom plate 143 is equipped with a front clamping plate 141 that can be adjusted forward and backward through three parallel short through holes.

[0039] The height of the clamp bottom plate 143 and the distance between the front and rear clamp plates 142 of the battery clamp 14 are both adjustable, and the battery clamp 14 can be adapted to batteries of different lengths and thicknesses, thus providing better applicability.

[0040] As a further improvement of this embodiment, the battery clamp 14 also includes two limit members 144, and the rear ends of the two limit members 144 are adjustably arranged on the top surface of the rear clamp 142 along the left and right directions. The front ends of the two limit members 144 constitute two relatively bent L-shaped structures to fix the battery with an opening between the two limit members 144, effectively preventing the battery from moving left and right and affecting the accuracy of liquid injection. At the same time, the distance between the two limit members 144 is adjustable and can be suitable for batteries of different widths.

[0041] In this embodiment, an equipment box door and a control box door are installed on the back of the chassis. The equipment box door is hinged and rotatable at the side end of the equipment cavity 201, and the control box door is hinged and rotatable at the side end of the control cavity 202. This can prevent dust and moisture from entering the chassis and causing damage to the equipment in the equipment cavity 201 and the controller in the control cavity 202. Moreover, when performing maintenance, you only need to open the box door, which is convenient for subsequent maintenance of the entire machine.

[0042] In specific implementation, anti-theft locks are provided on the equipment box door and the control box door to further ensure work safety. Among them, a control panel and an operating instrument can be provided on the front of the control chamber 202, and a controller is provided inside the control chamber 202. The controller is connected to the control panel and the operating instrument respectively. The controller is also connected to the liquid injection cylinder 3, the liquid injection pump, the liquid receiving cylinder 5, the vacuum control valve 7, the sealing mechanism 8 and the liquid inlet valve respectively, and is used to control each process of the desktop liquid injection machine. The controller is preferably a PLC (Programmable Logic Controller).

[0043] The working principle of the above-mentioned desktop liquid filling machine is as follows: manually place the expanded battery on the battery clamp 14, and push the battery clamp 14 toward the locking chamber mechanism 2 until the clamp cover 13 covers the box body of the locking chamber mechanism 2 and automatically locks the chamber to form a closed liquid filling chamber; the liquid receiving box 6 above the liquid filling chamber retracts to expose the liquid filling hole, and the liquid filling cylinder 3 drives the liquid filling needle 4 to pass through the liquid filling hole and insert downward into the battery opening. The liquid filling needle 4 is connected to a high-precision liquid filling pump to complete quantitative liquid filling for the battery. After the liquid filling is completed, the liquid filling needle 4 retracts; the liquid receiving cylinder 5 drives the liquid receiving box 6 to extend, and the liquid receiving plate 60 at the front end of the liquid receiving box 6 seals the liquid filling chamber, and the vacuum control valve 7 is started to evacuate the liquid filling chamber; multiple vacuum stages can be set through the control panel to allow the electrolyte to penetrate and stand still under a vacuum environment, and the two sealing cylinders drive the heated front mold 83 and the heated rear mold 84 to complete the vacuum sealing of the battery under vacuum. In addition, the desktop liquid injection machine is also equipped with a liquid storage tank 9, which can be connected to the liquid injection needle 4 through a liquid inlet valve and a liquid injection pump in sequence to achieve an automatic liquid injection function.

[0044] Other structures and operations of the desktop liquid filling machine according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0047] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined with each other in any one or more embodiments or examples in a suitable manner without interference or contradiction.

[0048] Materials or features may be combined with each other in any suitable manner in any one or more embodiments or examples without interference or contradiction.

Claims

1. A desktop liquid injection machine, characterized in that: It comprises a base, a case arranged at the rear of the base, and a lock cavity mechanism and a clamp mechanism arranged side by side at the front of the base, wherein a vertical partition is arranged in the case to separate an equipment cavity and a control cavity, the control cavity is located at the rear of the clamp mechanism, and the equipment cavity is located above and behind the lock cavity mechanism; The lock cavity mechanism is a box body with one side open, and a liquid injection hole is provided on the top surface of the box body; The clamp mechanism includes a clamp rail, a clamp slide slidably arranged on the clamp rail, a clamp cover plate vertically arranged at the right end of the clamp slide, and a battery clamp installed on the left side of the clamp cover plate. When the clamp slide slides to the leftmost end of the clamp rail, the box body and the clamp cover plate cooperate to seal to form a closed liquid injection chamber. The equipment cavity is provided with an injection cylinder and an injection needle in a cavity located above the locking cavity mechanism. The injection cylinder is used to drive the injection needle to move up and down in a vertical direction so that the injection needle passes downward through the injection hole to inject liquid into the battery. The injection needle is connected to an injection pump.

2. The desktop liquid injection machine according to claim 1, characterized in that: A liquid receiving box mechanism is also provided in the equipment cavity, and the liquid receiving box mechanism includes a liquid receiving guide rail, a liquid receiving cylinder and a liquid receiving box; The liquid receiving guide rail is arranged on the outer wall of the top surface of the box body, the liquid receiving cylinder is installed at the rear end of the liquid receiving guide rail, the telescopic rod of the liquid receiving cylinder is connected to the rear end of the liquid receiving box, and the liquid receiving box can be slidably arranged on the liquid receiving guide rail; A liquid receiving plate is provided at the front end of the liquid receiving box, a plane is provided at the bottom of the liquid receiving plate, and a groove is provided on the top surface of the liquid receiving plate; when the liquid receiving box moves to the front end of the liquid receiving guide rail, the bottom plane of the liquid receiving plate closes the injection hole, and the groove on the top surface of the liquid receiving plate is located directly below the injection needle.

3. The desktop liquid injection machine according to claim 2, characterized in that: A vacuum control valve is arranged at the rear of the box body of the locking chamber mechanism, one port of the vacuum control valve is communicated with the liquid injection chamber, and the other port of the vacuum control valve is communicated with the external air.

4. The desktop liquid injection machine according to claim 3, characterized in that: A sealing mechanism is also provided at the upper end of the box body, and the sealing mechanism includes a first sealing cylinder and a second sealing cylinder respectively arranged on the upper parts of the front and rear side plates of the box body, a heating front mold driven by the first sealing cylinder, a heating rear mold driven by the second sealing cylinder, and a sealing guide rail arranged on the top surface of the inner cavity of the box body, and the heating front mold and the heating rear mold are arranged opposite to each other and are both slidably arranged on the sealing guide rail.

5. The desktop liquid injection machine according to claim 4, characterized in that: A liquid storage tank is also provided in the equipment cavity, and the liquid storage tank is connected to the liquid injection pump through a liquid inlet valve.

6. The desktop liquid injection machine according to any one of claims 1 to 5, characterized in that: The battery clamp comprises a front clamping plate, a rear clamping plate and a clamp bottom plate, wherein the rear clamping plate is arranged on the left side wall of the clamp cover plate in a vertical direction; The left and right sides of the rear clamp plate are provided with two long through holes in the vertical direction, the rear side of the clamp base plate is adjustably arranged on the front side of the rear clamp plate through the two long through holes, the front side of the clamp base plate is provided with three short through holes in the front-to-back direction, and the front clamp plate is adjustably arranged on the top surface of the clamp base plate through the three short through holes.

7. The desktop liquid injection machine according to claim 6, characterized in that: The battery clamp further comprises two limit members, the rear ends of the two limit members are both adjustably arranged on the top surface of the rear clamping plate along the left-right direction, and the front ends of the two limit members form two relatively bent L-shaped structures.

8. The desktop liquid injection machine according to claim 1, characterized in that: An equipment box door and a control box door are installed on the back of the chassis. The equipment box door is rotatably arranged at the side end of the equipment cavity through a hinge, and the control box door is rotatably arranged at the side end of the control cavity through a hinge.

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