Lead liquid measuring and dosage control device for cast welding of lead-acid battery

Abstract

The invention discloses a lead liquid measurement and dosage control device for cast welding of a lead-acid battery, and aims to provide a lead liquid measurement and dosage control device for cast welding of a lead-acid battery, which has the advantages that the quantitative accuracy of liquid adding is improved, liquid adding is centralized and oriented, the lead liquid is convenient to measure, and then continuous lead injection is realized. The device comprises a supporting frame and a lifting frame, the supporting frame is connected with a lead pan body, the lead pan body is detachably connected with a plurality of proportional valve bodies, the lifting frame is connected with a plurality of control valve bodies and a plurality of temperature probes, the other ends of the control valve bodies penetrate through the lead pan body to be connected with the proportional valve bodies, the proportional valve bodies are provided with liquid outlet holes, and the control valve bodies are connected with valve needle bodies. The upper ends of the temperature probes are connected with the lifting frame, the lower ends of the temperature probes are arranged in the lead pan body, and the distances between the lower ends of the temperature probes arranged in the lead pan body and the inner bottom face of the lead pan body are not equal. The device has the beneficial effects that the quantitative accuracy of liquid adding is improved, centralized oriented liquid adding is achieved, lead liquid is convenient to measure, and then continuous lead injection is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of batteries, in particular to a device for measuring and controlling the amount of lead liquid used in cast welding of lead-acid batteries. Background Art

[0002] In the lead-acid battery manufacturing process, cast welding is a crucial process in the lead-acid battery manufacturing process. The existing lead-acid battery cast welding method generally includes the following process: immersing the busbar mold in the lead liquid of the lead furnace so that the cavity on the busbar mold is filled with lead liquid, then taking the busbar mold out of the lead furnace, and then turning the battery bottom box equipped with multiple pole groups upside down on the busbar mold, so that the pole ears of the multiple pole groups are inserted into the lead liquid in the cavity of the busbar mold for cast welding, and then cooling the busbar mold and taking the battery bottom box out of the busbar mold. The existing lead injection mechanism has the disadvantages of low precision of liquid addition and lack of centralized guidance of liquid addition. In addition, the lead liquid is not easy to measure when injecting lead. When the temperature is not suitable, such as too low temperature, lead cannot be injected, and it takes time to cool at too high a temperature. At the same time, the change of the lead liquid amount is difficult to control in real time, which affects the efficiency of continuous liquid addition. Summary of the invention

[0003] The present invention aims to overcome the shortcomings of the prior art lead injection mechanism, such as low precision of quantitative liquid addition, lack of centralized guidance of liquid addition, difficulty in monitoring the temperature and residual amount of lead liquid, which affect continuous lead injection. The present invention provides a lead liquid measuring and dosage control device for lead-acid battery cast welding, which improves the quantitative precision of liquid addition, centralized guidance of liquid addition, and facilitates the measurement of lead liquid, thereby realizing continuous lead injection.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A device for measuring and controlling the amount of lead liquid for cast welding of lead-acid batteries comprises a supporting frame and a lifting frame, wherein the lifting frame is movably connected to the supporting frame, the supporting frame is connected to a lead pot body, the lead pot body is detachably connected to a plurality of quantitative valve bodies, the lifting frame is connected to a plurality of control valve bodies and a plurality of temperature probes, one end of the control valve body is elastically connected to the lifting frame, the other end of the control valve body passes through the lead pot body and is connected to the quantitative valve body, the quantitative valve body is provided with a liquid outlet, the control valve body is connected to a valve needle body, the valve needle body is movably connected to the liquid outlet, the upper end of the temperature probe is connected to the lifting frame, the lower end of the temperature probe is placed in the lead pot body, and the distances between the lower end of the temperature probe placed in the lead pot body and the inner bottom surface of the lead pot body are not equal.

[0005] The lead pot body is installed on the support frame to fix and support the lead pot body, so that the lead liquid in the lead pot body remains stable; the lifting frame is installed on the support frame, and is used to operate one end of the control valve body connected to the lifting frame to move up and down, so that the other end of the control valve body follows the quantitative valve body to move synchronously, and realize the opening and closing action of the quantitative valve body, so that the lead liquid in the lead pot body can flow, be injected, or stop flowing, thereby completing the lead injection operation; a number of temperature probes are connected to the lifting frame at the same time, thereby ensuring real-time monitoring of the lead liquid temperature, preventing the lead liquid from being too low and failing to reach the melting point, resulting in the inability to inject lead through the quantitative valve body, and the temperature being too high, resulting in too long a time to cool down after lead injection, or even as high as the boiling point, producing too much harmful gas that affects the working environment, thereby improving the lead injection efficiency and ensuring a green and safe environment for lead injection. Among them, there are several quantitative valve bodies and control valve bodies, and the number and position are matched to complete the batch synchronous lead injection operation; the quantitative valve body is provided with a liquid outlet for the final outflow of lead liquid, and the control valve body is connected to the valve needle body, and the opening and closing of the liquid outlet is controlled by the movement of the valve needle body in the liquid outlet, so as to control the flow state of the lead liquid, the quantitative valve body is used to enter a large flow of lead liquid, and the liquid outlet is used to flow out a small flow of lead liquid, and the valve needle body is directly operated in the liquid outlet to achieve a small flow outflow for accurate control of the flow, and at the same time, in the process of lead liquid outflow, the valve needle body is guided to flow down to prevent the outflowing liquid from dispersing and affecting the control and liquid addition effects; the control valve body and the lifting frame are elastically connected to realize buffering structure operation, reduce structural impact, protect the service life of the structure and control accuracy; the lead pot body and the quantitative valve body, the lifting frame and the control valve body are all detachably connected to facilitate the assembly and disassembly of the structure, so as to improve the connection stability and maintenance efficiency, improve practicality and extend the practical life of the device. The lengths of the temperature probes in the lead pot are different to adapt to the rise and fall of the lead liquid level, so that the temperature probes at different heights can detect and transmit the temperature corresponding to the lead liquid levels at different heights, and at the same time, the real-time monitoring of the change of the lead liquid balance can be realized, and the real-time monitoring of the lead liquid temperature with different lead liquid usage balance can be realized. The connection between structures is stable, the structure is protected, precise control and quantitative outflow are achieved, the directional centralized quantitative lead injection is achieved, the assembly and disassembly maintenance is facilitated, the service life is extended, batch efficient lead injection is achieved, the lead injection temperature and balance are monitored in real time, the lead injection temperature is suitable, the lead injection efficiency and the lead injection environment are guaranteed to be green and environmentally friendly, and the overall operation efficiency is improved and the uniform lead injection is guaranteed.

[0006] Preferably, the lifting frame includes a telescopic mechanism, a control panel and a guide column. The telescopic mechanism and the guide column are both connected to the support frame. The control panel is connected to the telescopic mechanism. The control panel is provided with a guide hole. The guide column is plugged into the guide hole. The control panel is movably connected to the guide column through the telescopic mechanism. The control panel is provided with a mounting hole. The control valve body is detachably connected to the control panel through the mounting hole. The telescopic mechanism in the lifting frame is a power source installed on the support frame. Several guide columns are provided and connected to the support frame. The control panel is connected to the guide column through the guide hole, so that the control panel can move up and down while maintaining an absolute horizontal state. In addition, the movement of each control valve body on the control panel has a guiding property, so that the control valve body connected to the control panel can move up and down with high precision and stability, thereby improving the precision of the docking between the control valve body and the quantitative valve body structure and the operating precision of the control panel. The effect of improving the structural connection and operational stability and ensuring the high precision of lead injection control is achieved.

[0007] Preferably, the control valve body includes a push-on valve stem and a pressure rod, the push-on valve stem is plugged into the mounting hole, one end of the push-on valve stem is connected to a mounting bolt head, the mounting bolt head is provided with a hexagonal screw hole, the other end of the push-on valve stem is connected to a connecting rod, the end of one end of the pressure rod is provided with a connecting hole, the connecting rod is threadedly connected to the connecting hole, the pressure rod is provided with an anti-skid groove, and the other end of the pressure rod is connected to the valve needle body. The push-on valve stem in the control valve body is plugged into the mounting hole on the control panel, wherein the upper end of the push-on valve stem is connected to the mounting bolt head and the lower end is connected to the connecting rod, the mounting bolt head quickly screws the connecting rod into the connecting hole of the pressure rod through the hexagonal screw hole, and at the same time, an anti-skid groove is provided on the side of the pressure rod to facilitate quick installation, and at the same time, disassembly allows quick reverse removal and replacement of accessories to ensure the sustainable use of the control valve body and prevent affecting the operating accuracy and progress. The effect of facilitating quick assembly and disassembly maintenance between structures is achieved.

[0008] Preferably, the push valve stem is sleeved with a buffer spring, the connecting rod is sleeved with a limit plate, one side of the limit plate is in contact with the end face of the pressure rod, the other side of the limit plate is in contact with the end face of the push valve stem, one end of the buffer spring is against the limit plate, and the other end of the buffer spring is against the control plate. The buffer spring is sleeved on the push valve stem and placed between the control plate and the limit plate to buffer the pressure of the control plate on the quantitative valve body and prevent excessive hard impact force from causing structural damage; the limit plate cooperates with the position of the mounting bolt head to position the connection between the push valve stem and the pressure rod to ensure the connection accuracy between the push valve stem and the pressure rod, so that the other end of the pressure rod is accurately positioned in the quantitative valve body to accurately control the flow. This achieves the effect of ensuring the stability and accuracy of the structural connection and protecting the structure.

[0009] Preferably, the quantitative valve body includes a quantitative connecting tube and a positioning ring, the pressing valve stem is connected to the quantitative connecting tube, the positioning ring is sleeved with the quantitative connecting tube, the positioning ring and the quantitative connecting tube are an integrated structure, the lead pot body is provided with a mounting port, the quantitative connecting tube is connected to the mounting port, and the positioning ring is in contact with the surface of the lead pot body. The quantitative connecting tube in the quantitative valve body is connected to the mounting port at the lower end of the lead pot body, the positioning ring limits the connection depth of the quantitative connecting tube, so that the quantitative connecting tube is connected in place and cooperates with the pressing rod, and at the same time, the integrated quantitative connecting tube and the positioning ring improve the overall structural strength of the quantitative valve body. The effect of improving the structural connection accuracy and the degree of coordination with other structures, and the high structural strength and prolonged service life is achieved.

[0010] Preferably, the wall surface of the installation port is provided with a limiting groove, and the quantitative connection tube is covered with a limiting convex ring. The limiting convex ring and the quantitative connection tube are an integrated structure, and the limiting convex ring is clamped with the limiting groove. The outer side edges of the end faces of the quantitative connection tube and the limiting convex ring are chamfered structures. The outer side of the quantitative connection tube is sleeved with a limiting convex ring, and the limiting convex ring is connected to the lead pot body by inserting into the limiting groove to further locate the structural connection position and the sealing of the installation port to prevent the lead liquid from flowing out of the installation port. In addition, the limiting convex ring and the quantitative connection tube are an integrated structure to ensure the overall strength of the structure; the outer side edges of the end faces of the quantitative connection tube and the limiting convex ring are chamfered to facilitate the rapid installation of the structure. The effect of further improving the structural connection accuracy and the degree of coordination with other structures, the sealing of the device, and the high structural strength to extend the service life is achieved.

[0011] Preferably, a liquid inlet cavity is provided in the quantitative connecting tube, the liquid inlet cavity is connected with the inner cavity of the lead pot body, the liquid outlet is arranged at the lower end of the liquid inlet cavity and is connected with the liquid inlet cavity, the valve needle body comprises a needle guide tube and an insertion needle, one end of the needle guide tube is connected with the pressure rod, the other end of the needle guide tube is connected with the insertion needle, the needle guide tube is plugged into the liquid inlet cavity, and the insertion needle is plugged into the liquid outlet. A liquid inlet cavity is provided in the quantitative connecting tube, and the lead liquid flows into the liquid inlet cavity and flows out from the liquid outlet hole below. The needle guide tube in the valve needle body is connected to the liquid inlet cavity, so that the lead liquid enters from between the needle guide tube and the wall of the liquid inlet cavity. At the same time, a thinner plug needle is connected to the end of the needle guide tube, and the thicker pressure rod and the needle guide tube provide support for the plug needle. The plug needle can be plugged into the liquid outlet hole, so that the liquid outlet hole is quickly limited by the plug needle. At the same time, the liquid surface tension of the lead liquid can be pre-destroyed in the process of the plug needle withdrawing from the liquid outlet hole, so that the lead liquid can flow out smoothly along the liquid outlet hole for high-precision control and quantitative measurement. The effect of improving the stability of structural operation, the smoothness of lead injection and the quantitative accuracy is achieved.

[0012] Preferably, the liquid inlet cavity includes an active cavity and a liquid inlet groove, the guide needle tube is plugged into the active cavity, a plurality of liquid inlet grooves are provided and are evenly arranged on the cavity wall of the active cavity, the lower cavity opening of the active cavity and the end where the guide needle tube is connected to the insertion needle are both pointed in shape, the insertion needle is connected to the pointed end of the guide needle tube, and the liquid outlet is placed at the pointed end of the cavity opening of the active cavity. The liquid inlet cavity includes an active cavity and a liquid inlet groove. The needle guide tube is plugged into the active cavity so that the needle guide tube can move up and down along the active cavity guide. Several liquid inlet grooves are set and evenly arranged on the inner wall of the active cavity. The multiple liquid inlet grooves can pre-store lead liquid and ensure that the lead liquid can flow evenly from all directions of the liquid inlet cavity under the premise of ensuring the liquid inlet flow rate. The flow rate is uniform and not turbulent, which is convenient for controlling the flow rate. The lower end of the needle guide tube and the lower end of the active cavity are evenly pointed to achieve the confluence effect and further improve the fluidity of liquid addition. At the same time, the lower end of the needle guide tube fits with the lower end of the active cavity to further stop the flow and prevent dripping by pressing tightly. The lead liquid enters from the open upper end notch of the liquid inlet groove and flows into the active cavity from the closed lower end, so that the lower end of the tip of the active cavity can completely fit the needle guide tube, thereby ensuring the liquid stopping effect. The effect of improving the connection stability and fitting tightness between the structures, ensuring the smooth flow of the lead liquid and rapid liquid stopping, and achieving high-precision quantification is achieved.

[0013] Preferably, the upper end face of the quantitative connecting tube is provided with a first guiding slope and a second guiding slope, the upper port cavity wall of the active cavity is connected with the first guiding slope, the upper port notch of the liquid inlet tank is connected with the second guiding slope, the first guiding slope and the second guiding slope both make the ports of the liquid inlet tank and the active cavity open, and the cross-sectional shape of the lower end face of the quantitative connecting tube is an arc shape convex downward. The upper end face of the quantitative connecting tube is provided with the first guiding slope and the second guiding slope, so that the lead liquid can flow smoothly and guidely into the liquid inlet cavity, and at the same time, the lower end face of the quantitative connecting tube is an arc shape and bends downward to prevent the lead liquid from spreading outward, so that the lead liquid flow is centralized and the lead injection accuracy is improved. The flow degree, accuracy and quantitative convenience of lead injection are further improved.

[0014] Preferably, a stabilizing plate is provided in the lead pot body, a positioning groove is provided on the inner wall of the lead pot body, the positioning groove is placed at the middle horizontal height of the inner wall of the lead pot body, the stabilizing plate is clamped with the positioning groove, the stabilizing plate is provided with a plurality of stabilizing through holes, the pressure rod is plugged with the stabilizing through hole, and the stabilizing plate is provided with a plurality of lead liquid circulation holes. A stabilizing plate is clamped in the lead pot body through the positioning groove, and the stabilizing plate is installed in the middle position of the lead pot body, so that the middle part of the pressure rod can be supported and guided by the lead pot by passing through the stabilizing through hole, so as to prevent the pressure rod from being deformed and broken under long-term stress, thereby improving the service life of the pressure rod; a plurality of lead liquid circulation holes are provided on the stabilizing plate to ensure that the lead liquid can circulate normally without being restricted in height by the stabilizing plate. The effect of improving the stability and service life of the structure is achieved.

[0015] The beneficial effects of the present invention are: stable connection between the structures of the lead injection mechanism; protection structure to extend service life; precise control and quantitative outflow; guided centralized quantitative lead injection; easy assembly and disassembly maintenance; batch efficient lead injection; real-time monitoring of lead injection temperature and remainder; appropriate lead injection temperature to ensure lead injection efficiency and green lead injection environment; improvement of overall operating efficiency and guarantee of uniform cast welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a stereogram of the present invention; Figure 2 is a side view of the present invention; Figure 3 yes Figure 2 Sectional view at AA in the middle; Figure 4 This is a schematic diagram of the connection between the temperature probe and the lead pot body; Figure 5 yes Figure 3 The enlarged view of point B in the middle; Figure 6 yes Figure 3 Enlarged view of point C in the middle; Figure 7 It is a structural schematic diagram of the quantitative connecting pipe; Figure 8 yes Figure 7 A cross-sectional view of Fig. 9 It is a usage state diagram of the present invention.

[0017] In the figure: 1. Support frame, 2. Lifting frame, 3. Lead pot body, 4. Dosing valve body, 5. Control valve body, 6. Liquid outlet, 7. Telescopic mechanism, 8. Control board, 9. Guide column, 10. Guide hole, 11. Mounting hole, 12. Press valve stem, 13. Press rod, 14. Mounting bolt head, 15. Connecting rod, 16. Connecting hole, 17. Anti-skid groove, 18. Buffer spring, 19. Limiting plate, 20. Dosing connecting pipe, 21. Positioning ring, 22. Mounting port, 23. Limiting groove, 24. Limiting convex ring, 25. Liquid inlet cavity, 26. Guide needle tube, 27. Insertion needle, 28. Movable cavity, 29. Liquid inlet groove, 30. Guide slope 1, 31. Guide slope 2, 32. Stabilizing plate, 33. Positioning groove, 34. Stabilizing through hole, 35. Lead liquid flow hole, 36. Heating tube, 37. Liquid inlet pump, 38. Mold, 39. Temperature probe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. Example

[0022] like Figure 1 , Figure 2 , Figure 4 , Fig. 9 As shown, a device for measuring and controlling the amount of lead liquid for cast welding of lead-acid batteries comprises a support frame 1 and a lifting frame 2, the lifting frame 2 is movably connected to the support frame 1, the support frame 1 is connected to a lead pot body 3, the lead pot body 3 is connected to a plurality of quantitative valve bodies 4, the lifting frame 2 is detachably connected to a plurality of control valve bodies 5 and a plurality of temperature probes 39, one end of the control valve body 5 is elastically connected to the lifting frame 2, the other end of the control valve body 5 passes through the lead pot body 3 and is connected to the quantitative valve body 4, the quantitative valve body 4 is provided with a liquid outlet 6, the control valve body 5 is connected to a valve needle body, the valve needle body is movably connected to the liquid outlet 6, the upper end of the temperature probe 39 is connected to the lifting frame 2, the lower end of the temperature probe 39 is placed in the lead pot body 3, and the distances between the lower end of the temperature probe 39 placed in the lead pot body 3 and the inner bottom surface of the lead pot body 3 are not equal.

[0023] like Figure 1 , Figure 2 As shown, the lifting frame 2 includes a telescopic mechanism 7, a control panel 8 and a guide column 9. The telescopic mechanism 7 and the guide column 9 are both connected to the support frame 1. The control panel 8 is connected to the telescopic mechanism 7. The control panel 8 is provided with a guide hole 10. The guide column 9 is plugged into the guide hole 10. The control panel 8 is movably connected to the guide column 9 through the telescopic mechanism 7. The control panel 8 is provided with a mounting hole 11. The control valve body 5 is detachably connected to the control panel 8 through the mounting hole 11.

[0024] like Figure 3 , Figure 5 As shown, the control valve body 5 includes a pressing valve stem 12 and a pressure rod 13. The pressing valve stem 12 is plugged into the mounting hole 11. One end of the pressing valve stem 12 is connected to a mounting bolt head 14, and the mounting bolt head 14 is provided with a hexagonal screw hole. The other end of the pressing valve stem 12 is connected to a connecting rod 15. The end of one end of the pressure rod 13 is provided with a connecting hole 16. The connecting rod 15 is threadedly connected to the connecting hole 16. The pressure rod 13 is provided with an anti-slip groove 17. The other end of the pressure rod 13 is connected to the valve needle body.

[0025] like Figure 5 As shown, the pressing valve stem 12 is sleeved with a buffer spring 18, and the connecting rod 15 is sleeved with a limit plate 19. One side of the limit plate 19 is in contact with the end surface of the pressing rod 13, and the other side of the limit plate 19 is in contact with the end surface of the pressing valve stem 12. One end of the buffer spring 18 is in contact with the limit plate 19, and the other end of the buffer spring 18 is in contact with the control plate 8.

[0026] like Figure 4 , Figure 6 , Figure 7 As shown, the quantitative valve body 4 includes a quantitative connecting tube 20 and a positioning ring 21, the pressing valve stem 12 is connected to the quantitative connecting tube 20, the positioning ring 21 is sleeved with the quantitative connecting tube 20, the positioning ring 21 and the quantitative connecting tube 20 are an integrated structure, the lead pot body 3 is provided with a mounting port 22, the quantitative connecting tube 20 is connected to the mounting port 22, and the positioning ring 21 is in contact with the surface of the lead pot body 3.

[0027] like Figure 6 , Figure 7 , Figure 8 As shown, a limiting groove 23 is provided on the wall surface of the mounting port 22, and a limiting convex ring 24 is connected to the outer sleeve of the quantitative connecting tube 20. The limiting convex ring 24 and the quantitative connecting tube 20 are an integrated structure, and the limiting convex ring 24 is clamped with the limiting groove 23. The outer edges of the end faces of the quantitative connecting tube 20 and the limiting convex ring 24 are both chamfered structures.

[0028] like Figure 6 , Figure 8 As shown, a liquid inlet cavity 25 is provided in the quantitative connecting tube 20, and the liquid inlet cavity 25 is communicated with the inner cavity of the lead pot body 3, and the liquid outlet hole 6 is arranged at the lower end of the liquid inlet cavity 25 and is communicated with the liquid inlet cavity 25, and the valve needle body includes a guide needle tube 26 and a plug pin 27, one end of the guide needle tube 26 is connected to the pressure rod 13, and the other end of the guide needle tube 26 is connected to the plug pin 27, the guide needle tube 26 is plugged into the liquid inlet cavity 25, and the plug pin 27 is plugged into the liquid outlet hole 6.

[0029] like Figure 6 , Figure 8 As shown, the liquid inlet cavity 25 includes an active cavity 28 and a liquid inlet groove 29, the guide needle tube 26 is plugged into the active cavity 28, a plurality of liquid inlet grooves 29 are provided and are evenly arranged on the cavity wall of the active cavity 28, the lower end cavity opening of the active cavity 28 and the end where the guide needle tube 26 is connected to the insertion needle 27 are both pointed in shape, the insertion needle 27 is connected to the pointed end of the guide needle tube 26, and the liquid outlet 6 is placed at the pointed end of the cavity opening of the active cavity 28.

[0030] like Figure 7 , Figure 8 As shown, the upper end surface of the quantitative connecting tube 20 is provided with a guide slope 1 30 and a guide slope 2 31, the upper port cavity wall of the active cavity 28 is connected with the guide slope 1 30, and the upper port notch of the liquid inlet groove 29 is connected with the guide slope 2 31. The guide slope 1 30 and the guide slope 2 31 both make the ports of the liquid inlet groove 29 and the active cavity 28 open, and the cross-sectional shape of the lower end surface of the quantitative connecting tube 20 is a downwardly convex arc shape.

[0031] like Figure 4As shown, a stabilizing plate 32 is provided in the lead pot body 3, and a positioning groove 33 is provided on the inner wall of the lead pot body 3. The positioning groove 33 is placed at the middle horizontal height of the inner wall of the lead pot body 3, and the stabilizing plate 32 is engaged with the positioning groove 33. The stabilizing plate 32 is provided with a plurality of stabilizing through holes 34. The pressure rod 13 is plugged into the stabilizing through hole 34, and the stabilizing plate 32 is provided with a plurality of lead liquid circulation holes 35.

[0032] like Figure 1-Figure 9 As shown, the upper end notch of the liquid inlet groove 29 is connected to the end surface of the quantitative connecting tube 20, and the lower end notch of the liquid inlet groove 29 is closed.

[0033] The lead pot body 3 is connected with a heating tube 36 and a liquid inlet pump 37. The heating tube 36 is electrically connected to a heating device to realize electric heating, so that the lead liquid is heated by the heating tube 36 to enhance fluidity. The lead pot body 3 is continuously fed by the liquid inlet pump 37 to ensure batch addition of lead liquid. A mold 38 is provided under the lead pot body 3. The mold 38 is provided with a mold groove and is placed on the support frame 1. The mold 38 is placed under the lead pot body 3, and the mold groove is opposite to the liquid outlet 6 up and down to add liquid to the mold groove. The stabilizing plate 32 is provided with a clearance hole (not shown in the figure), which is used for the heating tube 36 to pass through the clearance hole to ensure the stable installation of the heating tube 36.

[0034] In actual arrangement, the monitoring accuracy of the lead liquid height can be controlled by increasing the number of different temperature probes 39. The stabilizing plate 32 is provided with perforations adapted to the temperature probes 39 to allow longer temperature probes 39 (such as Figure 4 As shown in the figure, the temperature probe 39 is an existing temperature sensing instrument (a thermocouple can be used) for contact measurement of the liquid. The temperature probe 39 is connected to the control board 8 on the lifting frame 2 and is connected to a temperature controller (a PLC controller can be used, not shown in the figure) through external electricity to realize temperature display and monitoring. At the same time, the heating equipment is controlled according to the temperature monitoring situation to ensure that the conditions and environment for lead injection are good.

[0035] Preparation before adding lead liquid: the lead material is transported into the lead pot body 3 through the lead material adding equipment (not shown in the figure) connected to the liquid inlet pump 37, and the heating equipment (not shown in the figure) connected to the heating tube 36 is turned on to heat and liquefy the lead material. The temperature of the lead liquid tested by the temperature probe 39 is raised to a temperature suitable for the lead injection range and the heating can be stopped. At this time, the valve needle body is pressed and blocked at the liquid outlet 6 by the control valve body, so that the liquid outlet 6 is in a stop flow state, and the heated lead liquid enters the liquid inlet tank 29 to prepare for liquid addition.

[0036] When the mold 38 is filled with lead liquid: the lead pot body 3 contains the lead liquid heated by the heating tube 36, and the mold 38 is placed directly below the lead pot body 3, and each liquid outlet hole 6 corresponds to the mold groove on the corresponding mold 38 (such as Figure 8As shown in the figure, the telescopic mechanism 7 (using a cylinder structure) is started, so that the telescopic mechanism 7 pulls the control board 8 to move upward, and then presses the valve stem 12 to pull the pressure rod 13 upward, so that the valve needle body is lifted in the active cavity 28, and the liquid in the liquid inlet tank 29 enters the lower end of the active cavity 28 and converges to the liquid outlet hole 6 where the pin 27 leaves. The lead liquid in each liquid outlet hole 6 flows into the mold groove of the corresponding mold 38 at the same time, and the liquid is added. The timing flow makes the lead liquid add to the amount and then press the control board 8 again through the telescopic mechanism 7, and the valve needle body resets the pin 27 to re-enter the liquid outlet hole 6, completing the liquid stop and realizing quantitative liquid addition. During this period, the temperature change of the lead liquid is observed by the temperature controller. When the temperature is lower than the temperature range suitable for lead injection, the lead injection is continued after the temperature is restored through the heating tube 36. In addition, the temperature probe 39 based on the corresponding lead liquid height determines whether it is necessary to add lead to the lead pot body 3 through the liquid inlet pump 37 to ensure the efficient and continuous lead injection operation.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring and controlling the amount of lead liquid for lead-acid battery casting welding, characterized in that: The invention comprises a support frame (1) and a lifting frame (2), wherein the lifting frame (2) is movably connected to the support frame (1), the support frame (1) is connected to a lead pot body (3), the lead pot body (3) is detachably connected to a plurality of quantitative valve bodies (4), the lifting frame (2) is connected to a plurality of control valve bodies (5) and a plurality of temperature probes (39), one end of the control valve body (5) is elastically connected to the lifting frame (2), the other end of the control valve body (5) passes through the lead pot body (3) and is connected to the quantitative valve body (4), the quantitative valve body (4) is provided with a liquid outlet (6), the control valve body (5) is connected to a valve needle body, the valve needle body is movably connected to the liquid outlet (6), the upper end of the temperature probe (39) is connected to the lifting frame (2), the lower end of the temperature probe (39) is placed in the lead pot body (3), and the distances between the lower end of the temperature probe (39) placed in the lead pot body (3) and the inner bottom surface of the lead pot body (3) are not equal.

2. A lead liquid measurement and dosage control device for lead-acid battery cast welding according to claim 1, characterized in that: The lifting frame (2) comprises a telescopic mechanism (7), a control panel (8) and a guide column (9); the telescopic mechanism (7) and the guide column (9) are both connected to the support frame (1); the control panel (8) is connected to the telescopic mechanism (7); the control panel (8) is provided with a guide hole (10); the guide column (9) is plugged into the guide hole (10); the control panel (8) is movably connected to the guide column (9) via the telescopic mechanism (7); the control panel (8) is provided with a mounting hole (11); and the control valve body (5) is detachably connected to the control panel (8) via the mounting hole (11).

3. A lead liquid measurement and dosage control device for lead-acid battery cast welding according to claim 2, characterized in that: The control valve body (5) comprises a pressing valve stem (12) and a pressure rod (13); the pressing valve stem (12) is plugged into the mounting hole (11); one end of the pressing valve stem (12) is connected to a mounting bolt head (14); the mounting bolt head (14) is provided with a hexagonal screw hole; the other end of the pressing valve stem (12) is connected to a connecting rod (15); the end of one end of the pressure rod (13) is provided with a connecting hole (16); the connecting rod (15) is threadedly connected to the connecting hole (16); the pressure rod (13) is provided with an anti-slip groove (17); the other end of the pressure rod (13) is connected to the valve needle body.

4. A lead liquid measurement and dosage control device for lead-acid battery cast welding according to claim 3, characterized in that: The pressing valve stem (12) is sleeved with a buffer spring (18), the connecting rod (15) is sleeved with a limit plate (19), one side of the limit plate (19) is in contact with the end surface of the pressing rod (13), the other side of the limit plate (19) is in contact with the end surface of the pressing valve stem (12), one end of the buffer spring (18) is in contact with the limit plate (19), and the other end of the buffer spring (18) is in contact with the control plate (8).

5. A lead liquid measurement and dosage control device for lead-acid battery cast welding according to claim 3 or 4, characterized in that: The quantitative valve body (4) comprises a quantitative connecting tube (20) and a positioning ring (21); the pressing valve stem (12) is connected to the quantitative connecting tube (20); the positioning ring (21) is sleeved with the quantitative connecting tube (20); the positioning ring (21) and the quantitative connecting tube (20) are an integrated structure; the lead pot body (3) is provided with a mounting opening (22); the quantitative connecting tube (20) is connected to the mounting opening (22); and the positioning ring (21) is in contact with the surface of the lead pot body (3).

6. A device for measuring and controlling lead liquid for cast welding of lead-acid batteries according to claim 5, characterized in that: A limiting groove (23) is provided on the wall surface of the installation opening (22); a limiting convex ring (24) is externally connected to the quantitative connecting tube (20); the limiting convex ring (24) and the quantitative connecting tube (20) are an integrated structure; the limiting convex ring (24) is clamped with the limiting groove (23); and the outer sides of the end surfaces of the quantitative connecting tube (20) and the limiting convex ring (24) are both chamfered structures.

7. A lead liquid measurement and dosage control device for lead-acid battery cast welding according to claim 6, characterized in that: A liquid inlet cavity (25) is provided in the quantitative connecting tube (20), the liquid inlet cavity (25) is communicated with the inner cavity of the lead pot body (3), the liquid outlet hole (6) is arranged at the lower end of the liquid inlet cavity (25) and is communicated with the liquid inlet cavity (25), the valve needle body comprises a needle guide tube (26) and an insertion needle (27), one end of the needle guide tube (26) is connected to the pressure rod (13), the other end of the needle guide tube (26) is connected to the insertion needle (27), the needle guide tube (26) is plugged into the liquid inlet cavity (25), and the insertion needle (27) is plugged into the liquid outlet hole (6).

8. The device for measuring and controlling the amount of lead liquid for lead-acid battery casting welding according to claim 7 is characterized in that: The liquid inlet cavity (25) comprises an active cavity (28) and a liquid inlet groove (29); the needle guide tube (26) is plugged into the active cavity (28); a plurality of liquid inlet grooves (29) are provided and are evenly arranged on the cavity wall of the active cavity (28); the lower cavity opening of the active cavity (28) and the end of the needle guide tube (26) connected to the insertion needle (27) are both pointed in shape; the insertion needle (27) is connected to the tip of the needle guide tube (26); and the liquid outlet hole (6) is located at the tip of the cavity opening of the active cavity (28).

9. A device for measuring and controlling lead liquid for cast welding of lead-acid batteries according to claim 8, characterized in that: The upper end surface of the quantitative connecting tube (20) is provided with a first guiding slope (30) and a second guiding slope (31); the upper port cavity wall of the active cavity (28) is connected to the first guiding slope (30); the upper port notch of the liquid inlet groove (29) is connected to the second guiding slope (31); the first guiding slope (30) and the second guiding slope (31) both make the ports of the liquid inlet groove (29) and the active cavity (28) open; the cross-sectional shape of the lower end surface of the quantitative connecting tube (20) is a downwardly convex arc shape.

10. The device for measuring and controlling the amount of lead liquid for lead-acid battery casting welding according to claim 3 is characterized in that: A stabilizing plate (32) is provided inside the lead pot body (3), a positioning groove (33) is provided on the inner wall of the lead pot body (3), the positioning groove (33) is located at a middle horizontal height of the inner wall of the lead pot body (3), the stabilizing plate (32) is engaged with the positioning groove (33), the stabilizing plate (32) is provided with a plurality of stabilizing through holes (34), the pressure rod (13) is plugged into the stabilizing through holes (34), and the stabilizing plate (32) is provided with a plurality of lead liquid circulation holes (35).

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