Preheating plate of lead-acid storage battery shell heat sealing table

Abstract

A preheating plate of a heat sealing table of a lead-acid storage battery shell comprises a preheating plate body and a hot air pipeline, the upper portion of the preheating plate body is provided with an upper groove corresponding to a heat sealing table and a covering edge of a storage battery cover, the lower portion of the preheating plate body is provided with a lower groove corresponding to a heat sealing table of a storage battery groove, and a hot air flow channel is formed in the preheating plate body. The hot air flow channel is communicated with the upper groove and the lower groove through a plurality of vent holes, pole holes matched with a positive pole and a negative pole of the storage battery are formed in the preheating plate body, an air inlet communicated with the hot air flow channel is formed in one end of the preheating plate body, one end of the hot air pipeline is connected with the air inlet, and the other end of the hot air pipeline is connected with a hot air source. According to the utility model, hot air is utilized to preheat the heat-sealing table of the storage battery groove and the heat-sealing table of the storage battery cover, so that the temperature of the heat-sealing tables rises, the sudden drop of the temperature at the position where the heat-sealing tables are melted by the heating plate during heat-sealing is prevented, and the heat-sealing temperature is kept within the range set by process parameters, thereby improving the heat-sealing quality.

Description

Technical Field

[0001] The utility model relates to a preheating plate of a lead-acid battery shell heat-sealing station, which can preheat the heat-sealing station of a battery slot and a battery cover before the lead-acid battery is heat-sealed, thereby improving the heat-sealing quality of the lead-acid battery and belongs to the technical field of batteries. Background Art

[0002] Taking flooded lead-acid batteries as an example, the battery tank and battery cover are mainly made of excellent thermoplastic synthetic resin PP (polypropylene) as the main material. The sealing connection between the two is mainly formed by melting the battery tank and battery cover and bonding them on a heat-sealing table to form a sealed space. The sealing of the battery tank and battery cover is a very critical process. If the sealing is not good, it will lead to battery liquid leakage, gas leakage, acid leakage and other adverse phenomena, which will have an irreversible impact on the overall performance and service life of the battery.

[0003] At present, the sealing method of starting lead-acid batteries is heat sealing. A heat sealing machine is required in the heat sealing process. The heat sealing machine has a metal heating plate, the lower surface of which melts the battery slot heat sealing table, and the upper surface melts the battery cover heat sealing table. In production, the battery cover and the battery slot are welded together by melting the plastic on both sides.

[0004] The utility model patent with application number CN213845347U discloses a fully automatic lead-acid battery heat sealing machine, which includes a main body, the main body has an upper lifting mechanism, a lower lifting mechanism and a hot pressing plate, the lower lifting mechanism is provided with a conveyor belt and a positioning component for positioning the box body during the conveying process, the hot pressing plate is horizontally slidably arranged between the upper lifting mechanism and the lower lifting mechanism; a box cover feeding component includes a cover storage rack for placing a box cover group, a cover separation device arranged on the cover storage rack, a positioning seat fixed to the hot pressing plate and used for positioning the box cover, and a conveying device for moving the box cover on the cover storage rack to the positioning seat; the utility model greatly reduces the time for the upper lifting mechanism to take the box cover by arranging a box cover feeding device through automatic loading of the box cover, and has the advantages of improving production efficiency and equipment OEE. However, the heat sealing quality of existing heat sealing machines is greatly affected by the ambient temperature. In winter when the ambient temperature is very low, the temperature of the battery slot and the battery cover is very low. During heat sealing, the temperature at the melting heat sealing station of the heat sealing machine heating plate will drop rapidly, causing the heat sealing temperature to exceed the lower limit of the process parameters, which is prone to poor heat sealing and seriously affects the product quality. Utility Model Content

[0005] The utility model aims to solve the drawbacks of the prior art and provide a preheating plate for a heat-sealing station for a lead-acid battery shell to eliminate the influence of ambient temperature on the heat-sealing temperature and improve product quality.

[0006] The problem described in the utility model is solved by the following technical solutions:

[0007] A preheating plate for a heat-sealing station of a lead-acid battery shell comprises a preheating plate body and a hot air duct, wherein the upper portion of the preheating plate body is provided with an upper groove corresponding to the heat-sealing station and the covering edge of a battery cover, and the lower portion is provided with a lower groove corresponding to the heat-sealing station of a battery slot, a hot air flow channel corresponding to the upper groove and the lower groove is provided inside the preheating plate body, the hot air flow channel is connected to the upper groove and the lower groove through a plurality of vents, the preheating plate body is provided with pole holes matching the positive pole and the negative pole of the battery, an air inlet connected to the hot air flow channel is provided at one end of the preheating plate body, one end of the hot air duct is connected to the air inlet, and the other end is connected to a hot air source.

[0008] In the preheating plate of the lead-acid battery shell heat sealing station, the cross-sections of the lower groove and the upper groove are both trapezoidal, and the diameter of the vent hole is the same as the bottom width of the upper groove and the lower groove.

[0009] The preheating plate of the above-mentioned lead-acid battery shell heat sealing station has a gap of 1-2mm between the inner wall of the upper groove and the heat sealing station and the covering edge of the battery cover, and a gap of 1-2mm between the inner wall of the lower groove and the heat sealing station of the battery tank.

[0010] The preheating plate of the lead-acid battery shell heat sealing station is made of metal.

[0011] The utility model sends hot air in the hot air duct into the upper groove and the lower groove through the hot air flow channel and the vent hole, and preheats the heat sealing table of the battery slot and the heat sealing table of the battery cover by using the hot air, so that the temperature of the heat sealing table of the battery slot and the battery cover is increased, and the temperature at the heat sealing table where the heating plate melts during heat sealing is prevented from suddenly dropping, so as to ensure that the heat sealing temperature is kept within the range set by the process parameters, thereby improving the heat sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 AA section view in;

[0015] Figure 3 It is an axonometric view of the preheating plate body;

[0016] Figure 4 It is a schematic diagram of the structure of the battery cover.

[0017] The numbers in the figure represent: 1. preheating plate body, 2. hot air duct, 3. pole hole, 4. upper groove, 5. lower groove, 6. hot air flow channel, 7. vent hole, 8. air inlet, 9. heat sealing table. DETAILED DESCRIPTION

[0018] The utility model aims at the drawbacks of the prior art and provides a preheating plate of a lead-acid battery shell heat sealing station, which can use hot air to preheat the battery slot and the battery cover to prevent the problem of poor heat sealing caused by a sudden drop in temperature at the melting position of the heating plate during heat sealing, thereby improving the heat sealing quality.

[0019] See also Figure 1-Figure 3 The utility model includes a preheating plate body 1 made of metal, a lower groove 5 corresponding to the heat sealing platform of the battery tank is arranged at the lower part, and an upper groove 4 corresponding to the heat sealing platform 9 and the shame-shielding edge of the battery cover is arranged at the upper part, the cross-sections of the lower groove 5 and the upper groove 4 are both trapezoidal, the gap between the inner wall of the upper groove 4 and the heat sealing platform and the shame-shielding edge of the battery cover is 1-2mm, and the gap between the inner wall of the lower groove 5 and the heat sealing platform of the battery tank is 1-2mm. That is to say, by adjusting the relative positions of the preheating plate body 1, the battery tank and the battery cover, when the gap between the bottom surface of the upper groove 4 and the heat sealing platform of the battery cover is 1-2mm, the gap between the side wall of the upper groove 4 and the heat sealing platform of the battery cover is also 1-2mm, and when the gap between the bottom surface of the lower groove 5 and the heat sealing platform of the battery tank is 1-2mm, the gap between the side wall of the lower groove 5 and the heat sealing platform of the battery tank is also 1-2mm.

[0020] The preheating plate body 1 has a hot air flow channel 6 corresponding to the upper groove 4 and the lower groove 5. An air inlet 8 connected to the hot air flow channel 6 is provided at one end of the preheating plate body 1. One end of the hot air duct 2 is connected to the air inlet 8, and the other end is connected to the hot air source. A plurality of vents 7 are provided between the hot air flow channel 6 and the upper groove 4 and the lower groove 5. The vents 7 are densely distributed along the upper groove 4 and the lower groove 5. The hot air in the hot air duct 2 can be introduced into the upper groove 4 and the lower groove 5 through the hot air flow channel 6 and the vents 7 to preheat the heat sealing table of the battery tank and the heat sealing table of the battery cover. The diameter of the vent 7 is the same as the bottom width of the upper groove 4 and the lower groove 5. The preheating plate body 1 is provided with a pole hole 3 matching the positive pole and the negative pole of the battery. The pole hole 3 can play a positioning role, and the diameter of the pole hole 3 is 4-6mm larger than the diameter of the pole.

[0021] The operation method of the utility model is as follows:

[0022] When the ambient temperature is low and the heat sealing station of the battery tank and the battery cover needs to be preheated, the preheating plate body 1 is moved to the upper part of the battery tank by the preheating plate moving device, and the heat sealing station of the battery tank enters the lower groove 5 of the preheating plate body 1, and the gap between the inner wall of the lower groove 5 and the heat sealing station of the battery tank is 1-2mm, and then the battery cover is moved to the upper part of the preheating plate body 1 by the cover lifting device, and the heat sealing station of the battery cover is aligned with the upper groove 4 of the preheating plate body 1, and the gap between the inner wall of the upper groove 4 and the heat sealing station of the battery cover is 1-2mm, and the pole of the battery is inserted into the pole hole 3. Then the hot air enters the hot air flow channel 6 through the hot air duct 2, and then reaches the heat sealing station of the battery tank and the battery cover through the vent 7, so as to realize the preheating of the battery tank and the battery cover. The preheated battery tank and battery cover are transferred to the heat sealing machine for heat sealing.

[0023] The utility model sends the hot air in the hot air duct into the upper groove and the lower groove through the hot air flow channel and the vent hole, and preheats the heat sealing table of the battery slot and the heat sealing table of the battery cover by the hot air, which can not only make full use of the hot air resources and reduce the waste of energy, but also effectively increase the heat sealing table temperature of the battery slot and the battery cover, avoid the heat sealing temperature from being affected by the ambient temperature and suddenly dropping, ensure that the heat sealing temperature is kept within the process parameters, and thus improve the heat sealing quality.

Claims

1. A preheating plate for a lead-acid battery shell heat sealing station, characterized in that: The invention comprises a preheating plate body (1) and a hot air duct (2); the upper part of the preheating plate body (1) is provided with an upper groove (4) corresponding to the heat sealing platform and the covering edge of the battery cover; the lower part is provided with a lower groove (5) corresponding to the heat sealing platform of the battery tank; the inside of the preheating plate body (1) is provided with a hot air flow channel (6) corresponding to the upper groove (4) and the lower groove (5); the hot air flow channel (6) is connected to the upper groove (4) and the lower groove (5) through a plurality of vents (7); the preheating plate body (1) is provided with pole holes (3) matching the positive pole and the negative pole of the battery; one end of the preheating plate body (1) is provided with an air inlet (8) connected to the hot air flow channel (6); one end of the hot air duct (2) is connected to the air inlet (8), and the other end is connected to a hot air source.

2. The preheating plate of the lead-acid battery shell heat sealing station according to claim 1 is characterized in that: The cross-sections of the lower groove (5) and the upper groove (4) are both trapezoidal, and the diameter of the vent hole (7) is the same as the bottom width of the upper groove (4) and the lower groove (5).

3. The preheating plate of the lead-acid battery shell heat sealing station according to claim 2 is characterized in that: The gap between the inner wall of the upper groove (4) and the heat sealing platform and the covering edge of the battery cover is 1-2 mm, and the gap between the inner wall of the lower groove (5) and the heat sealing platform of the battery tank is 1-2 mm.

4. The preheating plate of the lead-acid battery shell heat sealing station according to claim 3 is characterized in that: The preheating plate body (1) is a metal plate.

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