Tool for rapidly detecting heat-sealing centering degree of cover

By designing a tool for quickly detecting the moderate heat sealing of lead-acid battery cover, the problem of poor sealing effect caused by positioning offset during the heat sealing process is solved, and fast and simple detection is achieved, and product quality and detection efficiency are improved.

CN222849938UActive Publication Date: 2025-05-09HUBEI HONGBEN ENERGY CO LTD
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Patent Information

Application Number
CN202421734011.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-05-09
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

During the heat sealing process of lead-acid batteries, the separation of the tank body and the cover and heating cause the heat sealing rib to shift when in contact, resulting in poor middleness of the cover after the heat sealing, and air leakage may occur. The existing detection methods are cumbersome and inefficient.

Method used

A tool set for fast detection of the heat sealing of the cover is designed, including a base body with an elongated structure and multiple medium detection heads. The thickness of the detection head is equal to the standard gap minus the maximum heat seal offset size. Through this tool set, it is possible to quickly check whether the gap between the battery cover and the groove body meets the requirements.

Benefits of technology

The tooling can quickly and simply check the centering of the cover after the battery is heat sealed, improve detection efficiency, avoid the problem of poor sealing effect caused by positioning offset during heat sealing, reduce the risk of air leakage, and ensure product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A tool for rapidly detecting the heat-sealing centering degree of a cover comprises a centering degree detection tool, the centering degree detection tool comprises a base body of a long-strip-shaped structure, one side of the base body is perpendicularly connected with more than two centering degree detection heads, the centering degree detection heads are arranged in the length direction of the base body, at least one centering degree detection head is connected to the left end of the base body, and the centering degree detection heads are connected to the right end of the base body. At least one centering detection head is connected to the right end of the base body, a groove for avoiding is formed between every two adjacent centering detection heads, the thickness of each centering detection head is equal to the difference between the size of a standard gap between the cover and the two sides of the groove body and the allowable maximum heat sealing deviation size, and the height of each centering detection head is smaller than that of the standard gap between the two sides of the groove body. According to the utility model, gaps between covers on two sides of the battery and the groove body can be directly checked. The device is high in inspection speed and simple to operate, can quickly judge whether the centering degree of the heat-sealed cover meets the requirement or not, reduces the operation difficulty, reduces measuring instruments such as calipers, improves the product quality, and reduces the air leakage risk.
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Description

Technical Field

[0001] The utility model belongs to the field of detection, and in particular relates to a tool for detecting heat sealing of a battery cover. Background Art

[0002] In the production process of lead-acid batteries, the battery cover and the tank body are sealed, and heat sealing is a common sealing method. During the heat sealing process, the battery tank body and the cover need to be heated and semi-melted separately, and then the tank body and the cover are matched by external force pressing, and the semi-molten heat sealing ribs are contacted and squeezed, and melted and sealed. However, in this process, since there must be a separation process between the tank body and the cover (heating each), there will inevitably be a certain offset when the heat sealing ribs contact, resulting in poor centering of the cover after heat sealing, and even serious leakage problems. The general method of testing the centering is to use a vernier caliper to measure whether the gap size between the two sides of the cover and the two sides of the tank body after heat sealing meets the requirements. However, since this method requires the battery to be turned over during testing, and the scale value must be read, the actual operation is very troublesome. Generally, it is only sampled during the first inspection before production, and each battery will not be tested. Therefore, products with unqualified centering may flow to the next process, resulting in quality risks. Summary of the invention

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art, thereby providing a tool for quickly detecting the centering degree of heat sealing of a large cover, which is used for checking the centering degree of the large cover of a lead-acid battery after heat sealing. After the battery is heat sealed, the centering degree of the heat seal can be checked quickly and conveniently. The tool has high inspection efficiency and avoids the problem of poor sealing effect caused by positioning deviation during heat sealing.

[0004] The technical solution of the utility model is: a tool for quickly detecting the centering degree of heat sealing of a lid, including a centering degree detection tool, the centering degree detection tool including a substrate with a long strip structure, two or more centering degree detection heads are vertically connected to one side of the substrate, each centering degree detection head is arranged along the length direction of the substrate, at least one centering degree detection head is connected to the left end of the substrate, at least one centering degree detection head is connected to the right end of the substrate, there is a groove for making way between two adjacent centering degree detection heads, the thickness of the centering degree detection head is equal to the standard gap size between the lid and the two sides of the slot body minus the maximum allowable heat sealing offset size, and the height of the centering degree detection head is less than the standard gap height on both sides of the slot body.

[0005] When there are two centering detection heads, one centering detection head is connected to the left end of the base, and the other centering detection head is connected to the right end of the base; when there are more than three centering detection heads, there is at least one centering detection head in the middle of the base.

[0006] One side of the base is bent at right angles to form more than two centering detection heads.

[0007] The width of the centering detection head is 10-15mm.

[0008] The thickness of the substrate is 3-5 mm.

[0009] The width L of the base body is smaller than the width of the battery.

[0010] The other side of the base is connected with the cylinder.

[0011] The other side of the base is connected to the cylinder by a plug-in method, and the other side of the base is connected to the cylinder by a connecting piece.

[0012] The connecting parts are screws.

[0013] A tool for quickly detecting the centering degree of heat sealing of a cover comprises two centering degree detection tools as described above. When in use, the two centering degree detection tools are symmetrically placed on the left and right sides of a battery cell, and the centering degree detection head of each centering degree detection tool is inserted into the gap between the cover and the two sides of the cell for detection.

[0014] After the tooling is applied, there is no need to use measuring instruments such as calipers, and the gap between the cover and the tank on both sides of the battery can be directly checked. The inspection speed is fast and the operation is simple. It can quickly determine whether the centering degree of the cover after heat sealing meets the requirements, and can realize automatic detection to ensure the centering degree of each battery after heat sealing, reduce the difficulty of operation, reduce the number of measuring instruments such as calipers, improve product quality, and reduce the risk of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 It is a side view of the utility model;

[0019] Figure 5 It is a schematic diagram of the battery structure;

[0020] Figure 6 yes Figure 5 Side view of

[0021] Figure 7 This is one of the use state diagrams of the utility model;

[0022] Figure 8 yes Figure 7 A partial enlarged view of

[0023] Fig. 9 This is the second usage state diagram of the utility model;

[0024] Fig.10 yes Fig. 9 A partial enlarged view of

[0025] Fig.11 It is a schematic diagram of the connection between the utility model and external equipment;

[0026] In the figure: 1. Centering test tool; 1.1. Base; 1.2. Centering test head; 1.3. Groove; 2. Battery; 2.1. Battery cross-section; 3. Centering test passed; 4. Centering test failed; A, B, C are test points. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model are clearly and completely described in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0028] It should be noted that similar numbers and letters represent similar items in the drawings. In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model.

[0029] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. Example

[0030] Figure 1-10 The tooling of the utility model comprises a centering degree detection tooling 1, on which a base 1.1, a plurality of centering degree detection heads 1.2 and a groove 1.3 are provided.

[0031] The tool 1 for quickly detecting the heat seal centering of the lid described in the technical solution of the utility model has a base 1.1 made of hard material, which provides a carrier for the centering detection head 1.2 and can be connected to external equipment. The thickness of the base 1.1 is generally 3-5mm, so as not to deform during use and not to interfere with the measurement of the centering detection head 1.2. The width L of the base 1.1 is preferably slightly less than the width of the battery, so that the centering detection heads on both sides will not measure outside the lid.

[0032] The tool 1 for quickly detecting the centering degree of heat sealing of the cover described in the technical solution of the utility model has a centering degree detection head 1.2, the number of which is related to the structure and position of the battery side and should be no less than 2. The centering degree detection head 1.2 is connected to the end of the base 1.1.

[0033] The tool 1 for quickly detecting the centering degree of heat seal of the lid described in the technical solution of the utility model has a centering degree detection head 1.2 whose thickness is equal to the standard gap between the lid and the two sides of the slot body minus the maximum allowable heat seal offset size, and its height is suitable for smoothly inserting the tool 1 into the standard gap between the lid and the two sides of the slot body, and its width is suitable for ensuring that the centering degree detection head 1.2 is not easily deformed.

[0034] The tool 1 for quickly detecting the centering degree of heat sealing of the cover described in the technical solution of the utility model has a groove 1.3 related to the structure of the battery side, and its purpose is to avoid the protrusions on the battery side to prevent the protrusions from affecting the measurement of the centering degree.

[0035] The technical solution of the utility model discloses a tool for quickly detecting the centering degree of heat seal of a lid, and the method of using the tool is as follows:

[0036] Insert the tool for quickly testing the centering degree of heat seal of the cover into the gap between the battery cover and the two sides of the slot: If the tool can be inserted smoothly and completely, it means that the centering degree of the battery cover after heat sealing meets the requirements, which is Figure 8 The centering test is qualified 3; if the tooling cannot be inserted smoothly and completely, it means that the centering of the battery cover after heat sealing does not meet the requirements, that is, Fig.10 The centering test failed4.

[0037] This embodiment only lists one form. For designs that have not been changed in principle, for example, the base 1.1 is connected to an external device to form an automated centering detection device, which can be connected by plugging and unplugging the kit, punching holes, and screwing (such as Fig.11 ), all belong to equivalent replacement of some features of this technology.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool for quickly detecting the centering degree of heat seal of a lid, characterized by: The invention comprises a centering detection tool (1), wherein the centering detection tool (1) comprises a base body (1.1) of a long strip structure, wherein one side of the base body (1.1) is vertically connected to two or more centering detection heads (1.2), wherein the centering detection heads (1.2) are arranged along the length direction of the base body (1.1), wherein at least one centering detection head (1.2) is connected to the left end of the base body (1.1), and at least one centering detection head (1.2) is connected to the right end of the base body (1.1), and a recess (1.3) is provided between two adjacent centering detection heads (1.2), wherein the thickness of the centering detection head (1.2) is equal to the standard gap size between the cover and the two sides of the slot body minus the maximum allowable heat seal offset size, and the height of the centering detection head (1.2) is less than the standard gap height on the two sides of the slot body.

2. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: When there are two centering detection heads (1.2), one centering detection head is connected to the left end of the base (1.1), and the other centering detection head is connected to the right end of the base (1.1); when there are three or more centering detection heads (1.2), there is at least one centering detection head (1.2) in the middle of the base (1.1).

3. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: One side of the base body (1.1) is bent at right angles to form more than two centering detection heads (1.2).

4. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: The width of the centering detection head (1.2) is 10-15mm.

5. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: The thickness of the substrate (1.1) is 3-5 mm.

6. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: The width L of the base (1.1) is smaller than the width of the battery.

7. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 1, characterized in that: The other side of the base body (1.1) is connected to the cylinder.

8. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 7, characterized in that: The other side of the base body (1.1) is connected to the cylinder by plugging and unplugging, and the other side of the base body (1.1) is connected to the cylinder by a connecting piece.

9. The tool for quickly detecting the centering degree of heat seal of a lid according to claim 7, characterized in that: The connecting parts are screws.