Round belt welding tool
By designing a circular strip welding fixture and utilizing the combined structure of the housing and heating rod, the problems of poor stability and high manpower consumption in circular strip welding were solved, achieving efficient and stable circular strip welding.
Patent Information
- Application Number
- CN202520520405.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing circular strip welding methods require multiple operators, have poor welding stability and are slow, consume a lot of human resources, and the welded joints are prone to breakage again.
Design a circular strip welding fixture, including two receiving bodies and a heating rod. The receiving body is provided with a semi-circular groove. The weld joint is welded by heating and maintaining a predetermined temperature through the heating rod. The stability and ease of operation are improved by using an annular heat insulation plate and a hinge structure.
Stable welding of circular strips was achieved under single-person operation, reducing the risk of secondary breakage, improving welding speed and efficiency, and reducing the need for human resources.
Smart Images

Figure CN223864371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco production technology, and in particular to a circular strip welding tool. Background Technology
[0002] In conveyor systems for transporting cigarette packs and boxes, round belts are mostly used as the power transmission medium. With prolonged operation, the round belts wear down and may even break, causing the output equipment to shut down and affecting the conveying efficiency of cigarette packs and boxes. Current methods involve fusing the broken ends of the round belt together to allow for its continued use. The current fusing process involves one person manually holding pliers to fix the broken end of the round belt, while another person uses a soldering iron to heat the two ends of the broken section until they melt. Then, the two melted ends are pressed together with the pliers, and after cooling, the fusing is complete.
[0003] However, because the two molten ends are pressed together at ambient temperature, the temperature drops rapidly, resulting in poor weld stability at the break and a high risk of secondary breakage. Furthermore, existing circular strip welding requires two or more operators, consuming significant manpower and resulting in slow welding speeds.
[0004] Therefore, there is an urgent need for a circular strip welding fixture to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a circular strip welding fixture that can solve the problems of two melting ends sticking together in the environment, rapid temperature drop, poor welding stability at the break, and the fact that existing circular strip welding work requires two or more workers to operate, which not only consumes manpower but also results in slow welding speed.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A circular strip welding fixture, comprising:
[0008] Two receiving bodies are provided, each receiving body having a semi-circular groove on its end face. The two receiving bodies having the semi-circular grooves are arranged opposite each other and can be selectively fastened together. The receiving bodies have an insertion groove on their side.
[0009] Two heating rods are inserted into the insertion slots of the two receiving bodies, respectively.
[0010] As a preferred technical solution for circular strip welding fixtures, the receiving body is provided with multiple semi-circular grooves, and the diameters of the multiple semi-circular grooves are not the same.
[0011] As a preferred technical solution for circular strip welding fixtures, the multiple semi-circular grooves are spaced apart from each other.
[0012] As a preferred technical solution for the circular strip welding fixture, the receiving body is provided with four semi-circular grooves, the diameters of the four semi-circular grooves being 4mm, 6mm, 8mm and 10mm respectively.
[0013] As a preferred technical solution for the circular strip welding fixture, the circular strip welding fixture also includes an annular heat insulation plate, the melting point of which is greater than that of the circular strip, and the inner walls at both ends of the semi-circular groove are attached with an annular heat insulation plate.
[0014] As a preferred technical solution for circular strip welding fixtures, the thickness of the annular heat insulation plate is 1mm-3mm.
[0015] As a preferred technical solution for the circular strip welding fixture, the circular strip welding fixture further includes a hinge, and one end of the two receiving bodies along the length direction is connected by the hinge.
[0016] As a preferred technical solution for the circular strip welding fixture, the circular strip welding fixture further includes a locking member, and the other ends of the two receiving bodies along the length direction are locked together by the locking member.
[0017] As a preferred technical solution for the circular strip welding fixture, the circular strip welding fixture further includes insulating bakelite, which is attached to the outer wall of the receiving body.
[0018] As a preferred technical solution for the circular strip welding fixture, the circular strip welding fixture further includes a temperature measuring element, which is used to detect the temperature of the surface of the receiving body.
[0019] The beneficial effects of this utility model are as follows:
[0020] The circular strip welding fixture provided by this utility model places the broken end of the circular strip to be welded within a semi-circular groove, positioned above a heating rod. After the two receiving bodies are interlocked, the circular strip is pressed into the receiving groove formed by the two semi-circular grooves, preventing the strip from detaching. The heating rod is then activated and a predetermined temperature is set. Once the heating rod reaches the predetermined temperature, it is maintained at that temperature for a period of time, during which the broken ends of the circular strip are welded together. The heating rod is then turned off and allowed to stand for a period of time to cool, completing the welding of the circular strip. Because the heat fusion and cooling of the broken end of the circular strip are completed within the receiving groove formed by the two semi-circular grooves, rapid cooling at the weld joint during the cooling process is avoided, resulting in a stable weld at the broken end and significantly reducing the risk of secondary breakage of the circular strip. Using this circular strip welding fixture, one worker can complete the welding of the circular strip, avoiding the need for significant manpower. Furthermore, the circular strip welding fixture is easy to operate and can greatly improve the welding speed of the circular strip. Attached Figure Description
[0021] Figure 1This is a schematic diagram of the structure of the circular strip welding fixture provided by this utility model;
[0022] Figure 2 This is an assembly diagram of the receiving body and the annular heat insulation plate provided by this utility model.
[0023] In the picture:
[0024] 1. Container for the main body; 11. Semicircular groove; 12. Insertion groove; 2. Heating rod; 3. Annular heat insulation plate; 4. Hinge. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0029] like Figure 1and Figure 2 As shown, this embodiment provides a circular strip welding device, including two receiving bodies 1 and two heating rods 2. The end faces of the receiving bodies 1 are provided with semi-circular grooves 11. The end faces of the two receiving bodies 1 with the semi-circular grooves 11 are arranged opposite each other and can selectively engage. When the two receiving bodies 1 are engaged, the two semi-circular grooves 11 form a receiving circular groove, and the broken end of the circular strip to be welded can be placed in the receiving circular groove. Insertion grooves 12 are provided on the side of the receiving bodies 1, and the two heating rods 2 are respectively inserted into the insertion grooves 12 of the two receiving bodies 1.
[0030] When welding round strips, the broken ends of the strip to be welded are placed in a semi-circular groove 11 of a receiving body 1, and both broken ends are positioned above the heating rod 2. The two receiving bodies 1 are then fastened together, pressing the strip into the receiving groove formed by the two semi-circular grooves 11 to prevent the strip from falling out. The heating rod 2 is then activated, and its predetermined temperature is set. Once the heating rod 2 reaches the predetermined temperature, it is maintained at that temperature for a period of time to ensure that the broken ends of the strip are thermally melted and welded together. The heating rod 2 is then turned off and allowed to stand for a period of time to cool, completing the welding of the strip. Because the thermal melting and cooling of the broken ends of the strip are completed within the receiving groove formed by the two semi-circular grooves 11, rapid cooling at the weld joint during the cooling process is avoided, resulting in a stable weld at the strip joint and significantly reducing the risk of secondary breakage. Using this round strip welding fixture, one worker can complete the welding of the strip, avoiding the need for significant manpower. Furthermore, the round strip welding fixture is easy to operate and can greatly improve the welding speed of the strip.
[0031] In this embodiment, the receiving body 1 is provided with multiple semi-circular grooves 11, so that the circular strip welding fixture can weld multiple broken circular strips at once, thereby further improving the efficiency of circular strip welding. Simultaneously, one worker can complete the welding of multiple circular strips at once, further freeing up manpower. Furthermore, the diameters of the multiple semi-circular grooves 11 are not the same, thus enabling the circular strip welding fixture to weld circular strips of different sizes, improving the versatility of the fixture. The multiple semi-circular grooves 11 are spaced apart from each other, ensuring uniform heating among the multiple circular strips when welding multiple strips at once, further improving the stability of welding multiple circular strips at once.
[0032] For example, the receiving body 1 has four semi-circular grooves 11, with diameters of 4mm, 6mm, 8mm, and 10mm respectively. This enables the welding of circular strips with diameters of 4mm, 6mm, 8mm, and 10mm. Of course, the dimensions of the semi-circular grooves 11 can be designed according to the dimensions of the circular strip, and no specific limitations are made here.
[0033] Preferably, the circular strip hot-melting fixture also includes an annular heat insulation plate 3. The melting point of the annular heat insulation plate 3 is higher than that of the circular strip. The inner walls at both ends of the semi-circular groove 11 are attached with annular heat insulation plates 3. The annular heat insulation plates 3 can insulate the area of the circular strip located in the semi-circular groove 11 away from the break point, preventing the area away from the break point from being melted during hot-melting, thus further ensuring the quality and aesthetics of the welded circular strip. Simultaneously, the annular heat insulation plate 3 can also block the melted circular strip material, preventing it from flowing out. Specifically, the thickness of the annular heat insulation plate 3 is 1mm-3mm, selected based on the specific circular strip specifications and the heating temperature required for hot-melting; no specific limitations are imposed here. The material of the annular heat insulation plate 3 can be ceramic materials such as alumina, silicon nitride, or zirconium oxide; no specific limitations are imposed on the material of the annular heat insulation plate 3.
[0034] In this embodiment, the circular strip welding fixture also includes a hinge 4. The two receiving bodies 1 are connected at one end along their length via the hinge 4, allowing them to rotate and connect, making it easier for them to engage and facilitating operation. The hinge 4 is a conventional mechanical component, and its structure and assembly method will not be elaborated upon here. Furthermore, the circular strip welding fixture also includes a locking component. The other ends of the two receiving bodies 1 are locked together via the locking component, further improving the tightness of the engagement and reducing the risk of the circular strip falling off. Specifically, a mounting hole is provided at the end of the receiving body 1 facing away from the hinge 4. The locking component is a bolt, which locks the two receiving bodies 1 together via a threaded connection to the mounting hole.
[0035] In this embodiment, the circular strip welding fixture also includes insulating bakelite, which is attached to the outer wall of the receiving body 1. The insulating bakelite serves to provide insulation and heat insulation, which not only improves the safety of the circular strip welding fixture during operation, but also prevents workers from being burned while operating the fixture, thus improving the rationality of the circular strip welding fixture design.
[0036] In this embodiment, the circular strip welding fixture also includes a temperature measuring element, which is used to detect the temperature of the surface of the receiving body 1 to assist the staff in judging whether the welded circular strip has cooled down properly, thereby further improving the convenience of the staff's work.
[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A round belt splicing tool, characterized by, Include: Two containing bodies (1), the end face of the containing body (1) is provided with a semicircular groove (11), two containing bodies (1) provided with the end face of the semicircular groove (11) is opposite and can be selectively buckled, the side of the containing body (1) is provided with an insertion groove (12); Two heating rods (2), two heating rods (2) are respectively inserted into the insertion groove (12) of two containing bodies (1).
2. The round belt splicing tool of claim 1, wherein, The containing body (1) is provided with a plurality of semicircular grooves (11), and the diameters of the plurality of semicircular grooves (11) are inconsistent.
3. The round belt splicing fixture of claim 2, wherein, The plurality of semicircular grooves (11) are arranged at intervals.
4. The round belt splicing fixture of claim 3, wherein, The containing body (1) is provided with four semicircular grooves (11), and the diameters of the four semicircular grooves (11) are 4mm, 6mm, 8mm and 10mm respectively.
5. The round belt splicing fixture of claim 2, wherein, The circular band welding tool further comprises an annular heat insulation plate (3), the melting point of the annular heat insulation plate (3) is greater than the melting point of the circular band, and the inner walls of the two ends of the semicircular groove (11) are attached with the annular heat insulation plate (3).
6. The round belt splicing fixture of claim 5, wherein, The thickness of the annular heat insulation plate (3) is 1mm-3mm.
7. The round belt splice tool of claim 1, wherein, The circular band welding tool further comprises a hinge (4), and one end of two containing bodies (1) in the length direction is connected through the hinge (4).
8. The round belt splicing fixture of claim 7, wherein, The circular band welding tool further comprises a locking member, and the other end of two containing bodies (1) in the length direction is locked with each other through the locking member.
9. The round strip welding tooling of any one of claims 1-8, wherein, The circular band welding tool further comprises an insulating bakelite, and the insulating bakelite is attached to the outer wall of the containing body (1).
10. The round strip welding tooling of any one of claims 1-8, wherein, The circular band welding tool further comprises a temperature measuring member, and the temperature measuring member is used for detecting the temperature of the surface of the containing body (1).