Membrane thermocompression welding device

Abstract

The utility model discloses a film thermocompression welding device which comprises a welding assembly, a film unwinding assembly arranged on the front channel of the welding assembly and a film winding assembly arranged on the rear channel of the welding assembly. Wherein the film unwinding assembly comprises an unwinding shaft used for releasing a film raw material and a film unwinding driving roller used for driving the film raw material to move towards the welding assembly away from the unwinding shaft; the film winding assembly comprises a winding shaft used for winding the film waste and a film winding driving roller used for driving the film waste to leave the welding assembly and move towards the unwinding shaft. The welding assembly comprises a hot welding set and a transferring set which is arranged below the hot welding set and used for conveying workpieces.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, and in particular to a membrane hot pressing welding device. Background Technology

[0002] One of the processing steps in an automotive CMD production line is to bond the film to the parts using a hot welding method. During the welding process, manual welding is usually used. However, during the welding of the film, there are often problems with the film not being welded stably. Furthermore, during the hot pressing welding process, some welds may be incomplete or have missed welds, requiring multiple welding operations. Therefore, the equipment needs to be able to operate freely.

[0003] In response, CN213261143U discloses a waterproof and breathable membrane hot-press welding device. This device uses a dual-axis motor to drive a connecting rod, where a first bevel gear drives a second bevel gear on a rotating rod. Under the action of a bearing at the bottom, a sliding ring meshing with the rotating rod drives the moving table to rise and fall. If incomplete welding or missed welds occur during the hot-press welding process, adjustments can be made to allow the welding head to be lowered again for welding, ensuring complete welding. However, practical research has revealed the following drawbacks in the use of this disclosed technology:

[0004] Although the welding process is automated, the entire process still requires manual placement of the membrane. The accuracy of the alignment between the manually placed membrane and the workpiece still affects the reliability of the welded structure formed by the membrane and the workpiece. Furthermore, the manual placement of the membrane also affects the efficiency of the overall membrane welding process.

[0005] Therefore, given the shortcomings in efficiency and accuracy of the membrane thermopress welding device used in the existing technology, it is necessary to further optimize the structure of the membrane thermopress welding device. Utility Model Content

[0006] The purpose of this invention is to provide a membrane thermoforming welding device to solve the technical problem of improving welding accuracy and efficiency.

[0007] The membrane hot-press welding device of this utility model is implemented as follows:

[0008] A membrane thermoforming welding apparatus includes: a welding assembly, a membrane unwinding assembly located before the welding assembly, and a membrane rewinding assembly located after the welding assembly; wherein...

[0009] A membrane unwinding assembly includes an unwinding shaft for releasing membrane material and a membrane unwinding drive roller for driving the membrane material away from the unwinding axis and moving it along the welding assembly.

[0010] A film winding assembly includes a winding shaft for winding film waste and a film winding drive roller for driving the film waste away from the welding assembly and toward the unwinding shaft; and

[0011] A welding assembly, comprising a hot welding assembly and a transfer assembly located below the hot welding assembly for transferring workpieces.

[0012] In an optional embodiment of this invention, the hot welding assembly includes a hot welding head and a driver for driving the hot welding head to move up and down.

[0013] In an optional embodiment of this invention, the transfer assembly includes a platform for loading workpieces and a linear motion module connected to the platform for driving the platform to perform linear motion.

[0014] In an optional embodiment of this invention, the platform is provided with a positioning seat for accommodating the workpiece; and

[0015] The platform is also provided with a pair of limiting structures suitable for locking the workpiece in the positioning seat.

[0016] In an optional embodiment of this utility model, each of the limiting structures includes a clearance groove on the side wall of the positioning seat, and a buckle located beside the positioning seat that is adapted to move relatively closer to and further away from the workpiece in the positioning seat by linear movement.

[0017] The platform is also equipped with a first cylinder that is connected to the buckle.

[0018] In an optional embodiment of this invention, the buckle includes a buckle block adapted to be embedded in a relief groove and a protrusion hook protruding from one end of the buckle block facing the interior of the positioning seat, adapted to press against the workpiece.

[0019] In an optional embodiment of this invention, the transfer assembly further includes a lifting platform for loading the linear motion module;

[0020] The lifting platform is connected to a lifting drive for driving the lifting platform to move up and down.

[0021] In an optional embodiment of this invention, the film unwinding assembly further includes a film adjusting ring structure disposed between the unwinding shaft and the film unwinding drive roller.

[0022] In an optional embodiment of this utility model, the membrane adjustment ring structure includes a support frame, at least one transmission roller disposed on the support frame and in contact with the outer surface of the membrane material, and a pair of adjustment rings sleeved on each transmission roller;

[0023] A pair of the adjustment rings are used to limit the side edge of the membrane material in the length direction.

[0024] In an optional embodiment of this invention, each of the adjusting rings includes a pair of opposing semicircular rings, and the pair of semicircular rings are fastened together by a locking member to form an adjusting ring.

[0025] By adopting the above technical solution, this utility model has the following beneficial effects: The membrane thermopress welding device of this utility model achieves automated membrane unwinding and rewinding through a membrane unwinding assembly and a membrane rewinding assembly in conjunction with the welding assembly. This eliminates the need for manual membrane unwinding, improving processing efficiency. Furthermore, the unwinding and rewinding processes can be precisely controlled by adjusting the progress of the membrane unwinding and rewinding assemblies, ensuring reliable alignment between the membrane and the workpiece during welding, thereby enhancing the reliability of the welded structure formed by the membrane and the workpiece. Moreover, the design of the transfer assembly for conveying the workpiece enables precise workpiece transfer, ensuring accurate delivery to the welding position and improving workpiece transfer efficiency. In summary, the overall membrane thermopress welding device of this utility model not only improves the efficiency of thermopress welding but also enhances processing accuracy. Attached Figure Description

[0026] Figure 1 This is a first-view structural schematic diagram of the membrane thermo-press welding device of this utility model;

[0027] Figure 2 This is a second-view structural schematic diagram of the membrane thermo-press welding device of this utility model;

[0028] Figure 3 This is a third-view structural schematic diagram of the membrane thermo-press welding device of this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of part A.

[0030] In the diagram: membrane raw material 11, membrane waste 12, workpiece 13, unwinding shaft 21, membrane unwinding drive 22, winding shaft 23, membrane winding drive roller 24, hot welding head 31, driver 32, platform 41, linear motion module 42, positioning seat 43, clearance groove 44, first cylinder 45, locking block 46, hook 47, lifting platform 51, lifting driver 52, support frame 61, conduction roller 62, semi-circular ring 63, locking component 65. Detailed Implementation

[0031] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0032] Example 1:

[0033] Please see Figures 1 to 4As shown, this embodiment provides a film hot-press welding apparatus, including: a welding assembly, a film unwinding assembly disposed before the welding assembly, and a film winding assembly disposed after the welding assembly.

[0034] Generally speaking, the membrane unwinding assembly includes an unwinding shaft 21 for releasing the membrane material 11 and a membrane unwinding drive roller 22 for driving the membrane material 11 away from the unwinding shaft 21 toward the welding assembly. The membrane winding assembly includes a winding shaft 23 for winding up the membrane waste 12 and a membrane winding drive roller 24 for driving the membrane waste 12 away from the welding assembly toward the unwinding shaft 21; and the welding assembly includes a heat welding group and a transfer group disposed below the heat welding group for transferring the workpiece 13. Based on this structure, the membrane material 11 is released from the unwinding shaft 21 and then hot-pressed onto the workpiece 13 under the action of the welding assembly. Since the membrane material 11 is generally not perfectly aligned with the welding surface of the workpiece 13, membrane waste 12 will be formed after the hot-pressing welding is completed. For example, if the welding surface of the workpiece 13 is circular, membrane waste 12 will be generated around the circular welding surface after the hot-pressing welding of the membrane material 11 is completed. This part of the membrane waste 12 needs to be wound up so that the membrane unwinding assembly can release the membrane material 11 normally. Therefore, this embodiment achieves automated membrane unwinding operation through the cooperation of the membrane unwinding assembly and the membrane winding assembly.

[0035] Based on the above structure, it should also be noted that, as can be understood, the film winding drive roller 24 and the film unwinding drive roller 22 in this embodiment are respectively connected to a rotary driver for driving their operation. This embodiment does not make an absolute limitation on the specific form of rotary driver used.

[0036] Furthermore, it should be noted that in an optional implementation, the unwinding shaft 21 is also connected to an unwinding magnetic powder brake, which drives the unwinding shaft 21 to rotate and control the speed of unwinding the film material 11, preventing the unwinding from being too much or too little. Similarly, the winding shaft 23 is also connected to a winding magnetic powder brake, which drives the winding shaft 23 to rotate and control the speed of winding the film waste 12, preventing the winding speed from being too fast or too slow.

[0037] Specifically, the hot welding assembly includes a hot welding head 31 and a driver 32 for driving the hot welding head 31 to move up and down. The hot welding head 31 can be any mature method from the prior art, such as, but not limited to, a heated copper head. It is understood that the heated copper head is connected to a matching heating structure, but this embodiment does not impose an absolute limitation on this. The driver can be, for example, but not limited to, a lifting cylinder. When hot-press welding of the membrane material 11 is required, the lifting cylinder drives the hot welding head 31 to move downwards, pressing the hot welding head 31 onto the membrane material 11. After the hot-press welding of the membrane material 11 is completed, the lifting cylinder drives the hot welding head 31 to move upwards, leaving the membrane, so that the resulting membrane waste 12 can be wound up by the subsequent membrane winding assembly.

[0038] Furthermore, the transfer assembly includes a platform 41 for loading the workpiece 13 and a linear motion module 42 connected to the platform 41 for driving the platform 41 to perform linear motion. More specifically, the platform 41 is provided with a positioning seat 43 for accommodating the workpiece 13; and the platform 41 is also provided with a pair of limiting structures suitable for locking the workpiece 13 within the positioning seat 43. The linear motion module 42 here can be a cylinder or a lead screw module, which is not absolutely limited in this embodiment.

[0039] Based on the above structure, and referring to the accompanying drawings, in an optional embodiment, each limiting structure includes a clearance groove 44 on the side wall of the positioning seat 43, and a latch located beside the positioning seat 43, adapted to move relatively closer to and away from the workpiece 13 within the positioning seat 43 by linear movement; the platform 41 is also provided with a first cylinder 45 connected to the latch. The latch includes a latching block 46 adapted to be embedded in the clearance groove 44 and a protrusion 47 protruding from the side end of the latching block 46 facing the interior of the positioning seat 43, adapted to press against the workpiece 13. The latch here moves toward the workpiece 13 after the workpiece 13 is transferred into the positioning seat 43 by the drive of the first cylinder 45, so that the protrusion 47 can press on the workpiece 13. This design can improve the accuracy of the position of the workpiece 13 during the welding process and prevent the workpiece 13 from shaking in the positioning seat 43 (in order to facilitate the placement and removal of the workpiece 13 into and from the positioning seat 43, the workpiece 13 and the positioning seat 43 are in clearance fit. The pressing of the protrusion 47 on the workpiece 13 can prevent the workpiece 13 from shaking unexpectedly due to the clearance between it and the positioning seat 43. It should be noted that the protrusion 47 presses on the non-welded film position of the workpiece 13, thereby avoiding interference with the hot pressing welding process between the workpiece 13 and the film material 11). On the other hand, it can also prevent the workpiece 13 after the film welding is completed from being carried out of the positioning seat 43 by the upward movement of the hot welding head 31. After the hot-press welding of workpiece 13 and raw material film 11 is completed, the first cylinder 45 drives the buckle away from workpiece 13, thereby making it easier to remove workpiece 13 from the positioning seat 43.

[0040] Finally, it should be noted that the transfer assembly in this embodiment also includes a lifting platform 51 for loading the linear motion module; the lifting platform 51 is connected to a lifting driver 52 for driving the lifting platform 51 to perform lifting movements. Here, the lifting platform 51, in conjunction with the lifting driver 52, performs an upward movement after the workpiece 13 is transported below the hot welding head 31 to facilitate contact between the workpiece 13 and the membrane material 11, and after welding is completed, it performs a downward movement to separate the workpiece 13 from the membrane waste 12, facilitating the transfer of the workpiece 13 away from the welding assembly.

[0041] In summary, for the membrane hot-press welding apparatus of this embodiment, the membrane unwinding and rewinding are automated by cooperating with the welding assembly through the membrane unwinding assembly and the membrane rewinding assembly. This eliminates the need for manual membrane unwinding, which not only improves processing efficiency, but also allows for precise control of the membrane unwinding and rewinding process by controlling the progress of the membrane unwinding and rewinding assembly. This ensures a reliable alignment between the membrane and the workpiece 13 during the welding process, thereby improving the reliability of the welded structure formed by the membrane and the workpiece 13.

[0042] Example 2:

[0043] Based on the membrane hot pressing welding device of Embodiment 1, the membrane unwinding assembly of the membrane hot pressing welding device provided in this embodiment further includes a membrane adjusting ring structure disposed between the unwinding shaft 21 and the membrane unwinding drive roller 22.

[0044] More specifically, the membrane adjustment ring structure includes a support frame 61, at least one transmission roller 62 mounted on the support frame 61 and in contact with the outer surface of the membrane material 11, and a pair of adjustment rings sleeved on each transmission roller. The pair of adjustment rings is used to limit the side edge of the membrane material in the length direction; that is, the distance between the pair of adjustment rings is the width dimension of the membrane material 11. Here, the transmission rollers rotate relative to the support frame 61 as the membrane material 11 is transported, and the pair of adjustment rings on each transmission roller are used to prevent the membrane material 11 from deviating when transported between the unwinding shaft 21 and the membrane unwinding drive roller 22.

[0045] Based on the above structure, to facilitate adjusting the distance between a pair of adjusting rings according to membranes of different widths, thereby improving the applicability of the membrane adjusting ring structure to membrane raw materials 11 of different widths and enhancing its practicality, this embodiment employs a method where each adjusting ring includes a pair of opposing semicircular rings 63, fastened together by a locking member 65 to form the adjusting ring. This allows the pair of semicircular rings 63 to move on the conveyor roller 62 by loosening the locking member 65. Once the semicircular rings 63 are in the appropriate position, they are then locked in place by the locking member 65 to fix the adjusting ring onto the conveyor roller 62.

[0046] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0047] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 according to the specific circumstances.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0051] In this invention, unless otherwise explicitly specified and limited, "above or below" the first feature may 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" the first 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 first 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.

Claims

1. A membrane thermoforming welding apparatus, characterized in that, include: Welding assembly, film unwinding assembly located before the welding assembly, and film rewinding assembly located after the welding assembly; in A membrane unwinding assembly includes an unwinding shaft for releasing membrane material and a membrane unwinding drive roller for driving the membrane material away from the unwinding axis and moving it along the welding assembly. A film winding assembly includes a winding shaft for winding up film waste and a film winding drive roller for driving the film waste away from the welding assembly and toward the unwinding shaft. as well as A welding assembly, comprising a hot welding assembly and a transfer assembly located below the hot welding assembly for transferring workpieces.

2. The membrane hot pressing welding apparatus according to claim 1, characterized in that, The hot welding assembly includes a hot welding head and a driver for moving the hot welding head up and down.

3. The membrane hot pressing welding apparatus according to claim 1 or 2, characterized in that, The transfer assembly includes a platform for loading workpieces and a linear motion module connected to the platform for driving the platform to make linear movements.

4. The membrane hot pressing welding apparatus according to claim 3, characterized in that, The platform is provided with a positioning seat for accommodating the workpiece; and The platform is also provided with a pair of limiting structures suitable for locking the workpiece in the positioning seat.

5. The membrane hot pressing welding apparatus according to claim 4, characterized in that, Each of the limiting structures includes a clearance groove on the side wall of the positioning seat and a latch located beside the positioning seat, which is adapted to move relatively closer to and away from the workpiece in the positioning seat by linear movement. The platform is also equipped with a first cylinder that is connected to the buckle.

6. The membrane hot pressing welding apparatus according to claim 5, characterized in that, The buckle includes a locking block adapted to be embedded in a relief groove and a protruding hook on one end of the locking block facing the interior of the positioning seat, adapted to press against the workpiece.

7. The membrane hot pressing welding apparatus according to claim 3, characterized in that, The transfer assembly also includes a lifting platform for loading the linear motion module; The lifting platform is connected to a lifting drive for driving the lifting platform to move up and down.

8. The membrane hot pressing welding apparatus according to claim 1, characterized in that, The membrane unwinding assembly also includes a membrane adjustment ring structure disposed between the unwinding shaft and the membrane unwinding drive roller.

9. The membrane hot pressing welding apparatus according to claim 8, characterized in that, The membrane adjustment ring structure includes a support frame, at least one transmission roller disposed on the support frame and in contact with the outer surface of the membrane material, and a pair of adjustment rings sleeved on each transmission roller; A pair of the adjustment rings are used to limit the side edge of the membrane material in the length direction.

10. The membrane hot pressing welding apparatus according to claim 9, characterized in that, Each of the adjusting rings includes a pair of opposing semicircular rings, and the pair of semicircular rings are fastened together by a locking member to form an adjusting ring.

Images