Hot melt mechanism and production equipment

Abstract

This invention discloses a hot-melt mechanism and production equipment. The hot-melt mechanism of this invention includes a mounting component and a hot-melt head. The hot-melt head is movably connected to the mounting component and can swing relative to the mounting component. In the hot-melt mechanism of this invention, the hot-melt head can swing relative to the mounting component, so that when the hot-melt head contacts the hot-melt component, the hot-melt head can adaptively adjust its angle relative to the hot-melt component, thereby increasing the contact area between the hot-melt head and the hot-melt component, allowing the hot-melt head to fully contact the hot-melt component, and thus improving the hot-melt effect.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a hot-melting mechanism and production equipment. Background Technology

[0002] With the continuous development of technology, the demand for new energy power batteries is increasing. The production and manufacturing process has a significant impact on the quality of batteries. Among them, the production of battery cells is particularly important. In the production process of battery cells, a hot-melt mechanism is needed to heat-melt components (such as insulating films) so that the hot-melt components can be tightly attached to the parts to be connected, thereby improving the reliability and safety of the battery cells.

[0003] In related technologies, the hot-melt mechanism includes a hot-melt head, which has a high temperature. The hot-melt head makes the hot-melt component fit tightly against the surface of the part to be joined by contacting and heating the component. However, during the manufacturing process, the hot-melt head may not be able to make complete contact with the component, resulting in a small contact area and poor hot-melt effect. Summary of the Invention

[0004] This invention provides a hot-melting mechanism and production equipment, which can solve the problem of small contact area and poor hot-melting effect caused by the hot-melting head not being able to make complete contact with the hot-melting component.

[0005] The hot-melting mechanism of this invention includes a mounting component and a hot-melting head. The hot-melting head is movably connected to the mounting component, and the hot-melting head can swing relative to the mounting component.

[0006] In the hot-melting mechanism of the present invention, the hot-melting head can swing relative to the mounting component, so that when the hot-melting head contacts the hot-melting component, the hot-melting head can adaptively adjust its angle relative to the hot-melting component, thereby increasing the contact area between the hot-melting head and the hot-melting component, so that the hot-melting head can fully contact the hot-melting component, thereby improving the hot-melting effect.

[0007] In some embodiments, the hot-melt head can swing horizontally relative to the mounting component. The hot-melt position of the hot-melt component is generally set horizontally, allowing the hot-melt head to cover a larger hot-melt area, thereby improving production efficiency.

[0008] In some embodiments, the mounting component is provided with a limiting surface that restricts the swing range of the hot melt head. In this way, the limiting surface restricts the swing of the hot melt head within a certain range, reducing the probability that the swing range of the hot melt head is too large or too small, thus failing to adaptively adjust the contact area with the hot melt component and improving the reliability of the hot melt process.

[0009] In some embodiments, the mounting component is provided with a mounting groove, the hot melt head is partially housed in the mounting groove, and the limiting surfaces are the two opposite sidewalls of the mounting groove.

[0010] In this way, the mounting groove can limit the swing range of the hot melt head and accommodate the hot melt head, making the connection between the hot melt head and the mounting part more stable.

[0011] In some embodiments, the hot melt head is inserted into the mounting slot along a swing axis perpendicular to the hot melt head.

[0012] This simplifies the installation process between the hot melt head and the mounting slot, thereby improving production efficiency.

[0013] In some embodiments, the hot melt head is rotatably mounted on the mounting component via a rotating shaft, and the hot melt head oscillates relative to the mounting component about the central axis of the rotating shaft.

[0014] In this way, the rotating shaft allows the hot melt head to swing relative to the mounting part, thereby adaptively adjusting the angle relative to the hot melt component, thereby increasing the contact area between the hot melt head and the hot melt component, so that the hot melt head can fully contact the hot melt component, and thus improve the hot melt effect.

[0015] In some embodiments, the surface of the mounting member is provided with a groove, the rotating shaft includes a shaft portion and a head disposed at one end of the shaft portion, the shaft portion is partially inserted into the mounting member and the hot melt head along the depth direction of the groove, and the head is accommodated in the groove.

[0016] In this way, the shaft can connect the hot melt head and the mounting part, allowing the hot melt head to swing relative to the mounting part; in addition, the head is housed in the groove, which makes the structure between the rotating shaft and the mounting part more compact and smaller in size.

[0017] In some embodiments, the hot-melt mechanism further includes a limiting member disposed on the mounting member, with the limiting member located at one end of the rotating shaft along its axial direction. The limiting member prevents the rotating shaft from detaching from the mounting member, thus ensuring a stable connection between the rotating shaft and the mounting member.

[0018] In some embodiments, the hot-melt head includes a connecting portion and a hot-melt portion, the hot-melt portion being disposed on the side of the connecting portion opposite to the mounting member, and the connecting portion being movably connected to the mounting member.

[0019] In this way, there will be no interference between the heat-melting component and the mounting component during the heat-melting process; in addition, the connecting part can move relative to the mounting component so that the heat-melting part can adaptively adjust its angle relative to the heat-melting component, thereby increasing the contact area between the heat-melting head and the heat-melting component, so that the heat-melting head can fully contact the heat-melting component, thereby improving the heat-melting effect.

[0020] In some embodiments, the heat-fused portion includes an end face and a side face, the side face connecting the end face and the connecting portion, and the distance between the end face and the connecting portion decreasing from the middle portion of the end face towards the edge portion.

[0021] In this way, the connection between the joint and the end face is through a side connection, which reduces the probability of stress concentration in the hot-melt part, thereby reducing the risk of fatigue damage and fracture in the hot-melt part.

[0022] In some embodiments, the end face includes a hot-melt surface and a transition surface, the transition surface extending from the hot-melt surface toward the side surface in a direction close to the connection portion.

[0023] In this way, the hot-melt surface and the side surface are connected by a transition surface, which reduces the probability of stress concentration and thus reduces the risk of fatigue damage and fracture of the end face.

[0024] In some embodiments, the transition surface is inclined relative to the hot-melt surface, and the hot-melt surface and the side surface are smoothly connected to the transition surface.

[0025] Thus, the inclined design of the transition surface makes it easier to manufacture and form. In addition, the smooth transition connection can reduce the probability of stress concentration at the connection between the transition surface and other surfaces, thereby reducing the risk of fatigue damage and fracture of the transition surface.

[0026] In some embodiments, the hot-melt mechanism includes a first bracket, the mounting member is movably disposed on the first bracket, and a first drive mechanism is mounted on the first bracket for driving the mounting member to move relative to the first bracket.

[0027] In this way, the first drive mechanism can move the mounting part to the working position during hot melting, thereby improving production efficiency.

[0028] In some embodiments, the first driving mechanism includes a first driving member and a first transmission assembly. The first transmission assembly connects the mounting member and the first driving member. The first driving member drives the mounting member to move through the first transmission assembly. The first transmission assembly includes a shaft connector that connects to the mounting member. The shaft connector is used to transmit the driving force of the first driving member to the mounting member in a predetermined direction.

[0029] Thus, the first driving component drives the mounting component through the shaft connector, thereby improving the motion accuracy and stability of the mounting component and also increasing production efficiency. Furthermore, the shaft coupling itself has a small floating range, which can effectively transmit the driving force of the first driving component to the mounting component in a predetermined direction.

[0030] In some embodiments, the number of the mounting components, the hot melt head, the first bracket, and the first drive mechanism are all multiple and correspond one-to-one, and the multiple mounting components are arranged side by side with intervals.

[0031] In this way, multiple hot melt heads set on multiple mounting parts can be used to simultaneously heat melt multiple hot melt positions on the hot melt component, thereby improving production efficiency.

[0032] In some embodiments, the ends of the plurality of hot melt heads furthest from the mounting member are on the same plane.

[0033] In this way, multiple hot melt heads work on the same plane, which makes heating and welding operations more convenient and improves production efficiency. In addition, this arrangement facilitates the control of multiple hot melt heads by the first drive mechanism, thereby reducing the adjustment and maintenance time of the hot melt heads, reducing heat loss, and improving the quality and stability of welding.

[0034] In some embodiments, the hot-melt mechanism includes a second support and a second drive mechanism connected to the second support. A plurality of first supports are disposed on the second support, and the second drive mechanism is used to drive the second support to move, so as to drive the plurality of first supports and the plurality of hot-melt heads to move synchronously.

[0035] In this way, the hot-melt mechanism can perform hot-melt processing at multiple hot-melt positions, improving production efficiency. At the same time, due to the synchronous movement of multiple first supports and multiple hot-melt heads, the hot-melt quality at each hot-melt position can be guaranteed to be uniform, thus improving product quality.

[0036] In some embodiments, the second drive mechanism includes a second drive member and a second transmission assembly, the second transmission assembly connecting the second drive member and the second bracket, and the second drive member driving the second bracket to move through the second transmission assembly.

[0037] In this way, the second driving component drives the mounting component through the second transmission assembly, thereby improving the motion accuracy and stability of the mounting component, and also improving production efficiency.

[0038] In some embodiments, the second transmission component includes a slide rail, the second bracket is movably disposed on the slide rail, and the second drive member is located on one side of the slide rail in the width direction.

[0039] Thus, the slide rail design in the second transmission assembly ensures the second support remains stable during movement and guarantees the machining accuracy and stability of the hot melt head. Furthermore, the second drive component is located on one side of the slide rail's width, making the entire hot melt mechanism more compact and stable.

[0040] In some embodiments, the travel distance of the second support is greater than that of the first support.

[0041] In this way, during the hot-melting process, the second support can move multiple first supports to the working position, and then the first supports can move further, thereby improving both production efficiency and the moving accuracy of multiple hot-melting heads at the same time.

[0042] The production equipment in the embodiments of the present invention includes the hot-melting mechanism described in any of the above embodiments.

[0043] Thus, when processing battery cells using the production equipment of this invention, the hot-melt head can swing relative to the mounting component when it comes into contact with the hot-melt component, thereby adaptively adjusting the angle relative to the hot-melt component, thereby increasing the contact area between the hot-melt head and the hot-melt component, so that the hot-melt head can fully contact the hot-melt component, thereby improving the hot-melt effect.

[0044] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0046] Figure 1 These are schematic diagrams of the structure of a battery cell according to some embodiments of the present invention;

[0047] Figure 2 These are schematic diagrams of the structure of a battery cell according to some embodiments of the present invention;

[0048] Figure 3 This is a schematic diagram of the contact between the hot-melt mechanism and a battery cell in some embodiments of the present invention;

[0049] Figure 4 These are schematic diagrams of the hot-melt mechanism according to some embodiments of the present invention;

[0050] Figure 5 These are schematic diagrams of the hot-melt mechanism according to some embodiments of the present invention;

[0051] Figure 6 yes Figure 5 Enlarged view of part A;

[0052] Figure 7 This is a disassembly diagram of the hot-melt mechanism according to some embodiments of the present invention;

[0053] Figure 8 This is a disassembly diagram of the hot-melt mechanism in some embodiments of the present invention.

[0054] Explanation of key component symbols:

[0055] Battery cell 200; end cap 201; housing 202; electrode assembly 203; hot-melt component 204; insulating component 206; hot-melt position 207; hot-melt mechanism 100; mounting component 10; hot-melt head 20; limiting surface 11; mounting groove 12; rotating shaft 30; groove 13; shaft portion 31; head 32; limiting component 40; connecting portion 21; hot-melt portion 22; end face 220; side face 221; hot-melt surface 2201; transition surface 2202; first bracket 50; first drive mechanism 60; first drive component 61; first transmission assembly 62; shaft connector 620; second bracket 70; second drive mechanism 80; second drive component 81; second transmission assembly 82; slide rail 820. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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 invention according to the specific circumstances.

[0059] 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.

[0060] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0061] Currently, judging from market trends, battery applications are becoming increasingly widespread. Batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery applications, market demand is also constantly increasing.

[0062] The inventors have noted that when connecting the electrode assembly and the hot-melt component of a battery, the hot-melt process can prevent the hot-melt component from detaching from the surface of the part to be connected (e.g., part of the electrode assembly structure) and can surround the electrode tabs, thereby reducing the probability of contact between the tabs and other parts and the battery cell casing, thus ensuring the performance and safety of the electrode assembly. However, the inventors have found that during the hot-melt process of the battery electrode assembly, the hot-melt head may not be able to make complete contact with the hot-melt component. For example, there may be a large angle between the hot-melt head and the hot-melt component, resulting in a small contact area and poor hot-melt effect.

[0063] To address the problem of a small contact area and poor fusion effect caused by the fusion head not being able to make complete contact with the fusion component, the inventors have discovered that the fusion head can be designed as a movable structure, allowing it to adaptively adjust its angle relative to the fusion component when in contact, thereby ensuring complete contact between the fusion head and the fusion component.

[0064] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a battery cell 200 according to some embodiments of the present invention. Figure 2 This is a schematic diagram of the structure of a battery cell 200 according to some embodiments of the present invention. A battery cell 200 refers to the smallest unit that makes up a battery. The battery cell 200 includes an end cap 201, a housing 202, an electrode assembly 203, and other functional components. The end cap 201 is used to cover the housing 202, and the electrode assembly 203 is housed within the housing 202. The end cap 201 may include an insulating member 206, which is located near the electrode assembly 203, and the insulating member 206 has a heat-fusion position 207. The heat-fusion position 207 is the location where the insulating member 206 needs to be welded.

[0065] During manufacturing, the surface of the electrode assembly 203 needs to be covered by a heat-fused component 204 to improve the safety and reliability of the electrode assembly 203. The heat-fused component 204 is, for example, an insulating film (e.g., a mylar film), which is a structure that isolates the electrode assembly 203 from the housing 202. The insulating film can reduce the probability of a short circuit occurring inside the battery cell 200.

[0066] Please see Figure 3 , Figure 3 This is a schematic diagram of the contact between the hot-melt mechanism 100 and the battery cell 200 in some embodiments of the present invention.

[0067] In one example, during the hot-melt component 204 hot-melt process, the hot-melt component 204 can first be attached to the hot-melt position 207, and then the hot-melt head 20 of the hot-melt mechanism 100 is pressed against the position of the hot-melt component 204 corresponding to the hot-melt position 207. The hot-melt component 204 is hot-melted by the hot-melt head 20, so that the hot-melt component 204 and the insulating component 206 are fused together, thereby making it difficult for the hot-melt component 204 to detach from the surface of the electrode assembly 203.

[0068] Please see Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a schematic diagram of the structure of the heat-melting mechanism 100 according to some embodiments of the present invention. Figure 5 This is a schematic diagram of the structure of the heat-melting mechanism 100 according to some embodiments of the present invention. Figure 6 yes Figure 5 Enlarged view of part A. The hot-melt mechanism 100 of this embodiment includes a mounting member 10 and a hot-melt head 20. The hot-melt head 20 is movably connected to the mounting member 10, and the hot-melt head 20 can swing relative to the mounting member 10.

[0069] The production equipment (not shown) according to an embodiment of the present invention includes a heat-melting mechanism 100. Specifically, the production equipment may include one or more heat-melting mechanisms 100.

[0070] Specifically, the heat-melting mechanism 100 is a mechanism for partially heat-melting the heat-melting component 204. The heat-melting mechanism 100 can heat the heat-melting component 204 so that it can melt and adhere to the surface of the electrode assembly 203. Further, the heat-melting head 20 is used to partially heat-melt the heat-melting component 204. The heat-melting head 20 can be mounted on the mounting member 10, and the heat-melting head 20 can swing relative to the mounting member 10 in a horizontal or vertical direction, or it can swing relative to the mounting member 10 in any other direction.

[0071] During the swinging process of the hot melt head 20, with the help of the force applied by the hot melt component 204 when it contacts the hot melt component 204, the hot melt head 20 can adaptively adjust its own angle to ensure that it is always approximately perpendicular to the hot melt component 204, thereby ensuring that it can make full contact with the hot melt component 204.

[0072] In the hot-melting mechanism 100 of the present invention, the hot-melting head 20 can swing relative to the mounting member 10, so that when the hot-melting head 20 contacts the hot-melting component 204, the hot-melting head 20 can adaptively adjust the angle relative to the hot-melting component 204, thereby increasing the contact area between the hot-melting head 20 and the hot-melting component 204, so that the hot-melting head 20 can fully contact the hot-melting component 204, thereby improving the hot-melting effect.

[0073] Please see Figure 4In some embodiments, the hot melt head 20 can swing horizontally h relative to the mounting member 10. The hot melt position 207 of the hot melt component 204 is generally set along the horizontal direction h, in which the hot melt head 20 can cover a larger hot melt area, thereby improving production efficiency.

[0074] Please see Figure 4 In some embodiments, the mounting member 10 is provided with a limiting surface 11, which limits the swing range of the hot melt head 20.

[0075] Specifically, there can be multiple limiting surfaces 11. For example, there can be two limiting surfaces 11, which are respectively set on both sides of the hot melt head 20. There is a gap between the hot melt head 20 and the two limiting surfaces 11. The swing range of the hot melt head 20 is less than or equal to the sum of the dimensions of the gaps on both sides.

[0076] Thus, the limiting surface 11 restricts the swing of the hot melt head 20 within a certain range, which can reduce the probability that the swing range of the hot melt head 20 is too large or too small and cannot adaptively adjust the contact area with the hot melt component 204, thereby improving the reliability of the hot melt process.

[0077] Please see Figure 4 In some embodiments, the mounting member 10 is provided with a mounting groove 12, the hot melt head 20 is partially accommodated in the mounting groove 12, and the limiting surface 11 is the two opposite sidewalls of the mounting groove 12.

[0078] Specifically, the mounting groove 12 can be formed by eliminating part of the material through the mounting member 10. The outline size of the mounting groove 12 is larger than the outline size of the part of the hot melt head 20 that is accommodated in the mounting groove 12. The two opposite sidewalls of the mounting groove 12 can form a limiting surface 11. The part of the hot melt head 20 that is accommodated in the mounting groove 12 can be disposed between the two sidewalls.

[0079] Thus, the mounting groove 12 can limit the swing range of the hot melt head 20 and accommodate the hot melt head 20, making the connection between the hot melt head 20 and the mounting part 10 more stable.

[0080] In other embodiments, the limiting surface 11 can be another surface of the mounting member 10, for example, the outer peripheral surface of the mounting member 10 can be used as the limiting surface 11.

[0081] In some embodiments, the hot melt head 20 is inserted into the mounting groove 12 along a swing axis a perpendicular to the hot melt head 20.

[0082] Specifically, the swing axis of the hot melt head 20 is the central axis a around which the hot melt head 20 swings.

[0083] Thus, the installation method between the hot melt head 20 and the mounting groove 12 is simple, thereby improving production efficiency.

[0084] Please see Figure 6 In some embodiments, the hot melt head 20 is rotatably mounted on the mounting member 10 via a rotating shaft 30, and the hot melt head 20 oscillates relative to the mounting member 10 about the central axis a of the rotating shaft 30.

[0085] Specifically, the rotating shaft 30 can be a shaft used to connect the hot melt head 20 and the mounting part 10, and the swing axis of the mounting part 10 can be the central axis a of the rotating shaft 30. The rotating shaft 30 can be a structure of a rotating shaft and coupling, or it can be a floating locating pin, which can position and connect the hot melt head 20 and the mounting part 10. During installation, the floating locating pin can float to a certain extent in the axial direction, which can ensure that when the part is subjected to axial force, the floating locating pin can automatically adjust its position, thereby ensuring the positioning accuracy and stability of the part.

[0086] Thus, the rotating shaft 30 allows the hot melt head 20 to swing relative to the mounting part 10, thereby adaptively adjusting the angle relative to the hot melt component 204, thereby increasing the contact area between the hot melt head 20 and the hot melt component 204, so that the hot melt head 20 can fully contact the hot melt component 204, thereby improving the hot melt effect.

[0087] In other embodiments, the hot melt head 20 can be oscillating via a mechanism such as a four-bar linkage. For example, a four-bar linkage is provided on the mounting member 10, and the hot melt head 20 is mounted on the four-bar linkage. The links of the four-bar linkage itself can move to give the hot melt head 20 the ability to oscillate relative to the mounting member 10.

[0088] Please see Figure 6 and Figure 7 , Figure 7 This is a disassembly diagram of the heat-melting mechanism 100 according to some embodiments of the present invention. In some embodiments, the surface of the mounting member 10 is provided with a groove 13, and the rotating shaft 30 includes a shaft portion 31 and a head 32 disposed at one end of the shaft portion 31. The shaft portion 31 is partially inserted into the mounting member 10 and the heat-melting head 20 along the depth direction of the groove 13, and the head 32 is accommodated in the groove 13.

[0089] Specifically, the shape of the groove 13 can be a regular shape such as a circle or square, or it can be an irregular shape. The axial direction of the shaft 31 can be parallel to the depth direction of the groove 13. The shaft 31 can penetrate the bottom wall of the groove 13 and be inserted into the hot melt head 20. The depth to which the shaft 31 is inserted into the hot melt head 20 can be designed according to actual needs, so as to ensure that the shaft 31 and the hot melt head 20 will not separate during the hot melting process.

[0090] Thus, the shaft 31 can connect the hot melt head 20 and the mounting part 10, allowing the hot melt head 20 to swing relative to the mounting part 10; in addition, the head 32 is accommodated in the groove 13, which makes the structure between the rotating shaft 30 and the mounting part 10 more compact and smaller in size.

[0091] Please see Figure 6 and Figure 7 In some embodiments, the hot-melt mechanism 100 further includes a limiting member 40 disposed on the mounting member 10, and the limiting member 40 is disposed at one end of the rotating shaft 30 along the axial direction of the rotating shaft 30.

[0092] Specifically, the limiting member 40 can press against the head 32 of the rotating shaft 30, and the limiting member 40 can be detachably connected to the mounting member 10 by means of threaded connection, snap-fit ​​connection or other means.

[0093] The limiting member 40 can prevent the rotating shaft 30 from disengaging from the mounting member 10, thus ensuring a stable connection between the rotating shaft 30 and the mounting member 10.

[0094] Please see Figure 6 In some embodiments, the hot melt head 20 includes a connecting portion 21 and a hot melt portion 22, the hot melt portion 22 being disposed on the side of the connecting portion 21 away from the mounting member 10, and the connecting portion 21 being movably connected to the mounting member 10.

[0095] Specifically, the connecting portion 21 can be disposed between the mounting member 10 and the hot melt head 20. The connecting portion 21 can be partially inserted into the mounting member 10, and further, the connecting portion 21 can be partially inserted into the mounting groove 12. The hot melt portion 22 is the part on the hot melt head 20 that contacts the hot melt component 204 during hot melting. The hot melt portion 22 protrudes at least partially from the connecting portion 21 in a direction away from the mounting member 10. The connecting portion 21 can be movably connected to the mounting member 10 via the rotating shaft 30. The connecting portion 21 can swing about the axis of the rotating shaft 30, and its swing range can be limited by the limiting surface 11.

[0096] Thus, during the hot-melting process, there will be no interference between the hot-melting component 204 and the mounting component 10. In addition, the connecting part 21 can move relative to the mounting component 10 so that the hot-melting part 22 can adaptively adjust its angle relative to the hot-melting component 204, thereby increasing the contact area between the hot-melting head 20 and the hot-melting component 204, so that the hot-melting head 20 can fully contact the hot-melting component 204, thereby improving the hot-melting effect.

[0097] Please see Figure 6 In some embodiments, the heat-fused portion 22 includes an end face 220 and a side face 221, the side face 221 connecting the end face 220 and the connecting portion 21, and the distance between the end face 220 and the connecting portion 21 decreasing from the middle portion of the end face 220 to the edge portion.

[0098] Specifically, the end face 220 can be the surface where the heat-melting part 22 contacts the heat-melting component 204 during heat fusion. The side face 221 can be the surface of the heat-melting part 22 near the connecting part 21. The side face 221 can be a plane or a curved surface.

[0099] Thus, the connection between the connecting part 21 and the end face 220 is connected by the side 221, which reduces the probability of stress concentration in the hot-melt part 22, thereby reducing the risk of fatigue damage and fracture of the hot-melt part 22.

[0100] Please see Figure 6 In some embodiments, the end face 220 includes a hot-melt surface 2201 and a transition surface 2202, the transition surface 2202 extending from the hot-melt surface 2201 toward the side surface 221 in a direction close to the connection portion 21.

[0101] Specifically, the hot-melt surface 2201 can be the surface where the end face 220 contacts the hot-melt component 204 during hot melting. The hot-melt surface 2201 can be a plane or a curved surface. The transition surface 2202 can be a plane or a curved surface. The distance between the transition surface 2202 and the connecting part 21 is less than or equal to the distance between the hot-melt surface 2201 and the connecting part 21.

[0102] In this way, the hot-melt surface 2201 and the side surface 221 are connected by the transition surface 2202, which reduces the probability of stress concentration and thus reduces the risk of fatigue damage and fracture of the end face 220.

[0103] Please see Figure 6 In some embodiments, the transition surface 2202 is inclined relative to the hot melt surface 2201, and the hot melt surface 2201 and the side surface 221 are smoothly connected to the transition surface 2202.

[0104] Specifically, the transition surface 2202 and the hot-melt surface 2201 can have an included angle, which can be any angle greater than 90°, such as 100°, 120°, 150°, 155°, 160°, etc. The included angle refers to the minor angle between the surfaces. The connection between the hot-melt surface 2201 and the transition surface 2202 can be chamfered. Similarly, the connection between the side surface 221 and the transition surface 2202 can be chamfered.

[0105] Thus, the inclined setting of the transition surface 2202 makes it easy to manufacture and form. In addition, the smooth transition connection can reduce the probability of stress concentration at the connection between the transition surface 2202 and other surfaces, thereby reducing the risk of fatigue damage and fracture of the transition surface 2202.

[0106] Please see Figure 5 and Figure 7In some embodiments, the hot-melt mechanism 100 includes a first bracket 50, the mounting member 10 is movably disposed on the first bracket 50, and a first drive mechanism 60 is mounted on the first bracket 50 for driving the mounting member 10 to move relative to the first bracket 50.

[0107] Specifically, the first bracket 50 can be used to support the mounting component 10, and the mounting component 10 can be mounted on the bracket by means of a pulley, lead screw, or other movable connection. The first drive mechanism 60 can be mounted on the first bracket 50 by means of bolt connection, pin connection, or other means, and the drive method of the first drive mechanism 60 can be pneumatic drive, electric drive, or other means.

[0108] When the hot melt component 204 is in the position to be hot melted, the hot melt mechanism 100 needs to be close to the hot melt component 204, that is, the hot melt mechanism 100 needs to move to the working position when hot melting. The first drive mechanism 60 can move the mounting part 10 to the working position when hot melting, so that the hot melt head 20 mounted on the mounting part 10 is close to the hot melt component 204 and hot melts the hot melt component 204.

[0109] In this way, the first drive mechanism 60 can move the mounting part 10 to the working position during hot melting, thereby improving production efficiency.

[0110] Please see Figure 5 and Figure 7 In some embodiments, the first drive mechanism 60 includes a first drive member 61 and a first transmission assembly 62. The first transmission assembly 62 connects the mounting member 10 and the first drive member 61. The first drive member 61 drives the mounting member 10 to move through the first transmission assembly 62. The first transmission assembly 62 includes a shaft connector 620, which connects to the mounting member 10. The shaft connector 620 is used to transmit the driving force of the first drive member 61 to the mounting member 10 in a predetermined direction.

[0111] Specifically, the first transmission component 62 can be a cylinder, the shaft connector 620 can be a floating head, and the rotating shaft 30 can be a floating positioning pin. The cooperation of these three components enables cylinder floating control of the mounting part 10, allowing the mounting part 10 to move stably. Cylinder floating control is a commonly used technique in mechanical design. It allows the cylinder to maintain a smooth movement trajectory during operation, thereby improving the accuracy and reliability of mechanical equipment. Specifically, cylinder floating control is achieved by adding a certain gap between the cylinder and the floating head, allowing the cylinder to float freely during movement without being affected by external disturbances.

[0112] In cylinder floating control, a floating positioning pin is used to achieve the fit between the cylinder and the floating head. The floating positioning pin is a special type of pin that can float freely within a certain range while maintaining a precise fit between the cylinder and the floating head. When the cylinder moves, the floating positioning pin automatically adjusts its position to maintain a constant gap between the cylinder and the floating head, thus achieving smooth cylinder movement.

[0113] Thus, the first driving component 61 drives the mounting component 10 through the shaft connector 620, thereby improving the motion accuracy and stability of the mounting component 10 and also increasing production efficiency. In addition, the shaft connector 620 itself has a small floating range, which can effectively transmit the driving force of the first driving component 61 to the mounting component 10 in a predetermined direction.

[0114] Please see Figure 3 and Figure 8 , Figure 8 This is a disassembly diagram of the hot-melt mechanism 100 according to some embodiments of the present invention. In some embodiments, there are multiple mounting parts 10, hot-melt head 20, first bracket 50 and first drive mechanism 60, and they correspond one-to-one. Multiple mounting parts 10 are arranged side by side with intervals.

[0115] Specifically, the number of mounting components 10, hot-melt heads 20, first brackets 50, and first drive mechanisms 60 can be two, three, four, or even more. "Multiple components in each category with one-to-one correspondence" means that each mounting component 10 corresponds to one hot-melt head 20, one first bracket 50, and one first drive mechanism 60, and there are multiple of them. "Multiple mounting components 10 arranged side-by-side with intervals" means that these mounting components 10 need to be placed side-by-side at certain intervals during installation. This installation method ensures the stability and safety of the mechanical components.

[0116] In this way, the multiple heat-fusion heads 20 provided on the multiple mounting parts 10 can be used to simultaneously heat-fuse multiple heat-fusion positions 207 on the component 204, thereby improving production efficiency.

[0117] Please see Figure 3 In some embodiments, the ends of the plurality of hot melt heads 20 away from the mounting member 10 are on the same plane.

[0118] Specifically, the end of the multiple hot melt heads 20 away from the mounting part 10 can be the part of the hot melt head 20 used to heat melt the hot melt component 204, for example, it can be the hot melt surface 2201. The hot melt surfaces 2201 of the multiple hot melt heads 20 can be coplanar, or in other words, the position of the hot melt surfaces 2201 will not have differences in height or front and back, thereby ensuring the consistency and stability of the hot melt effect.

[0119] In this way, multiple hot melt heads 20 work on the same plane, which makes heating and welding operations more convenient and improves production efficiency. In addition, this arrangement facilitates the control of multiple hot melt heads 20 by the first drive mechanism 60, thereby reducing the adjustment and maintenance time of the hot melt heads 20, while also reducing heat loss and improving the quality and stability of welding.

[0120] Please see Figure 3 and Figure 8 In some embodiments, the hot melt mechanism 100 includes a second support 70 and a second drive mechanism 80 connected to the second support 70. A plurality of first supports 50 are disposed on the second support 70. The second drive mechanism 80 is used to drive the second support 70 to move, so as to drive the plurality of first supports 50 and the plurality of hot melt heads 20 to move synchronously.

[0121] Specifically, the first bracket 50 can be used to mount multiple first brackets 50 so that the multiple first brackets 50 can move synchronously, thereby improving production efficiency. The second drive mechanism 80 can be mounted on the second bracket 70 by means of bolt connection, pin connection, etc., and the drive method of the second drive mechanism 80 can be pneumatic drive, electric drive, etc.

[0122] The multiple first supports 50 can be an integral structure or a separate structure. The arrangement of multiple first supports 50 enables the heat-melting mechanism 100 to heat-melt components 204 of different shapes and sizes. The second drive mechanism 80 drives the second support 70 to bring the multiple first supports 50 and the multiple heat-melting heads 20 closer to or further away from the heat-melting component 204.

[0123] In this way, the hot-melt mechanism 100 can perform hot-melt processing on multiple hot-melt positions 207, improving production efficiency. At the same time, due to the synchronous movement of multiple first supports 50 and multiple hot-melt heads 20, the hot-melt quality of each hot-melt position 207 can be guaranteed to be uniform, thus improving product quality.

[0124] Please see Figure 5 and Figure 8 In some embodiments, the second drive mechanism 80 includes a second drive member 81 and a second transmission assembly 82. The second transmission assembly 82 connects the second drive member 81 and the second support 70. The second drive member 81 drives the second support 70 to move through the second transmission assembly 82.

[0125] Specifically, the second driving member 81 and the second bracket 70 can be respectively disposed at both ends of the second transmission assembly 82. The second transmission assembly 82 can transmit the power of the second driving member 81 to drive the second bracket 70 to approach or move away from the hot melt component 204.

[0126] Thus, the second driving component 81 drives the mounting component 10 through the second transmission assembly 82, thereby improving the motion accuracy and stability of the mounting component 10, and also improving production efficiency.

[0127] Please see Figure 5 and Figure 8 In some embodiments, the second transmission assembly 82 includes a slide rail 820, a second bracket 70 is movably disposed on the slide rail 820, and a second drive member 81 is located on one side of the slide rail 820 in the width direction.

[0128] Specifically, the slide rail 820 can be a straight slide rail 820 or a curved slide rail 820. The second bracket 70 can be directly or indirectly connected to the slide rail 820. For example, the second bracket 70 may include a sliding part that matches the track of the slide rail 820, and the sliding part cooperates with the slide rail 820 to allow the second bracket 70 to move relative to the slide rail 820. As another example, a slider may be provided on the slide rail 820, and the second bracket 70 may be fixedly connected to the slider, which can move on the slide rail 820 to allow the second bracket 70 to move relative to the slide rail 820.

[0129] Thus, the design of the slide rail 820 in the second transmission assembly 82 allows the second bracket 70 to remain stable during movement and ensures the machining accuracy and stability of the hot melt head 20. Furthermore, the second drive member 81 is located on one side of the slide rail 820 in the width direction, which makes the entire hot melt mechanism 100 more compact and stable.

[0130] In some embodiments, the travel distance of the second support 70 is greater than that of the first support 50.

[0131] Specifically, the second drive mechanism 80 can drive the second support 70 to move, thereby causing the first support 50 and multiple hot melt heads 20 to move as a whole, enabling the multiple hot melt heads 20 to quickly move to the working position. The first drive mechanism 60 can drive the first support 50 to move a single hot melt head 20, so that the pressure of the single hot melt head 20 can be fully applied to the hot melt component 204, thereby ensuring the hot melt effect. It can be understood that the stroke of the second drive mechanism 80 driving the second support 70 to move is the stroke of the multiple hot melt heads 20 approaching or moving away from the hot melt component 204, and the stroke of the first support 50 is the stroke of the multiple hot melt heads 20 respectively further pressing against the hot melt component 204. The stroke of the second support 70 is greater than the stroke of the first support 50, which enables the multiple hot melt heads 20 to quickly approach the hot melt component 204, thereby improving production efficiency.

[0132] Thus, during the hot-melting process, the second support 70 can move multiple first supports 50 to the working position, and then the first supports 50 can move further, thereby simultaneously improving production efficiency and the moving accuracy of multiple hot-melting heads 20.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0134] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hot melt mechanism, wherein, The hot melt mechanism comprises: a mounting member; a hot melt head movably connected to the mounting member, the hot melt head being capable of swinging relative to the mounting member; the hot melt head comprises a connecting portion and a hot melt portion, the hot melt portion being arranged on a side of the connecting portion away from the mounting member, and the connecting portion being movably connected to the mounting member; the connecting portion is movably connected to the mounting member through a rotating shaft, and the connecting portion swings around an axis of the rotating shaft as a swinging axis; the mounting member is provided with a limiting surface for limiting the swinging range of the hot melt head; the mounting member is provided with a mounting groove, and the hot melt head is partially accommodated in the mounting groove, and the limiting surface is two opposite side walls of the mounting groove.

2. The hot melt mechanism of claim 1, wherein, The hot melt head can swing in the horizontal direction relative to the mounting member.

3. The hot melt mechanism of claim 1, wherein, The hot melt head is inserted into the mounting groove along the swinging axis of the hot melt head.

4. Hot melt mechanism according to any one of claims 1-3, wherein The hot melt head swings relative to the mounting member around the central axis of the rotating shaft.

5. The hot melt mechanism of claim 4, wherein, The surface of the mounting member is provided with a groove, the rotating shaft comprises a shaft portion and a head portion arranged at one end of the shaft portion, the shaft portion is partially inserted into the mounting member and the hot melt head along the depth direction of the groove, and the head portion is accommodated in the groove.

6. The hot melt mechanism of claim 4, wherein, The hot melt mechanism further comprises a limiting member arranged on the mounting member, and the limiting member is arranged at one end of the rotating shaft along the axial direction of the rotating shaft.

7. The hot melt mechanism of claim 1, wherein, The hot melt portion comprises an end surface and a side surface, the side surface connects the end surface and the connecting portion, and the distance between the end surface and the connecting portion decreases from the middle part of the end surface to the edge part.

8. The hot melt mechanism of claim 7, wherein, The end surface comprises a hot melt surface and a transition surface, and the transition surface extends from the hot melt surface to the side surface in the direction close to the connecting portion.

9. The hot melt mechanism of claim 8, wherein, The transition surface is arranged obliquely relative to the hot melt surface, and the hot melt surface and the side surface are respectively connected to the transition surface in a smooth transition manner.

10. The hot melt mechanism according to any of claims 1-3, 7-9, wherein, The hot melt mechanism comprises a first support, the mounting member is movably arranged on the first support, a first driving mechanism is arranged on the first support, and the first driving mechanism is used to drive the mounting member to move relative to the first support.

11. The hot melt mechanism of claim 10, wherein, The first driving mechanism comprises a first driving member and a first transmission assembly, the first transmission assembly connects the mounting member and the first driving member, the first driving member drives the mounting member to move through the first transmission assembly, and the first transmission assembly comprises a shaft connector, the shaft connector connects the mounting member, and the shaft connector is used to transmit the driving force of the first driving member to the mounting member in a predetermined direction.

12. The hot melt mechanism of claim 10, wherein, The number of the mounting member, the hot melt head, the first support and the first driving mechanism is multiple and one-to-one correspondence, and multiple mounting members are arranged in parallel and spaced apart.

13. The hot melt mechanism of claim 12, wherein, The ends of multiple hot melt heads away from the mounting member are on the same plane.

14. The hot melt mechanism of claim 12, wherein, The hot melt mechanism comprises a second support and a second driving mechanism connected to the second support, multiple first supports are arranged on the second support, and the second driving mechanism is used to drive the second support to move so as to drive multiple first supports and multiple hot melt heads to move synchronously.

15. The hot melt mechanism of claim 14, wherein, The second driving mechanism comprises a second driving member and a second transmission assembly, the second transmission assembly connecting the second driving member and the second support, the second driving member driving the second support to move through the second transmission assembly.

16. The hot melt mechanism of claim 15, wherein, The second transmission assembly comprises a slide rail, the second support being movably arranged on the slide rail, and the second driving member being located at one side of the slide rail in the width direction.

17. The hot melt mechanism of claim 14, wherein, The moving stroke of the second support is greater than that of the first support.

18. A production apparatus, wherein, A hot melt machine comprising any one of claims 1-17.

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