A foam lamination apparatus

Abstract

The application relates to the technical field of sheet material fitting equipment, in particular to a foam fitting equipment which comprises a part bearing platform, a foam bearing platform, a first driving arm and a fitting assembly. Specifically, the part bearing platform is used for bearing parts, and the foam bearing platform is used for bearing foam; the first driving arm has a first movable end used for moving between the part bearing platform and the foam bearing platform; the fitting assembly comprises a first telescopic driving piece and a suction head; the first telescopic driving piece is arranged on the first movable end, and the suction head is connected to an output end of the first telescopic driving piece; the first telescopic driving piece is used for driving the suction head to move, so that the suction head is close to or far away from an edge surface of a first side of the part or a bearing surface of the foam bearing platform; the suction head is used for abutting and adsorbing a non-fitting surface of the foam, and a giving-up groove is arranged on the suction head and used for containing the first side of the part and the foam. The application has the effects of improving the fitting efficiency and fitting quality of the foam.

Description

Technical Field

[0001] This application relates to the field of sheet material bonding equipment, and in particular to a foam bonding equipment. Background Technology

[0002] Foam is widely used in the assembly of electronic equipment and precision components due to its excellent cushioning, sealing, and dustproof properties. In related technologies, a rectangular plate-shaped part requires foam to be attached to its opposite two edges. The foam on the first side of the part starts from the first surface of the part, bends 180° along the edge surface of the first side, and extends to the second surface of the part, forming a C-shaped cross-section. The attachment process of the foam on the first side involves two bends: the first bend moves the foam from the first surface to the edge surface for attachment, and the second bend moves the foam from the edge surface back to the second surface for attachment. The foam on the second side of the part is directly attached to the edge surface of the second side of the part, forming a straight line.

[0003] Currently, the industry's common equipment solution for bonding the foam on the first side is a step-by-step sequential bonding process: first, the initial section of the foam is bonded to a predetermined position on the first surface of the part; then, a driving component is used to perform the first bending action, forcing the foam to bend and press firmly onto the edge surface of the first side of the part; after completing this step, the same or another driving component is used to perform a second bending action, continuing to bend and press the remaining part of the foam onto the second surface of the part, ultimately completing the C-shaped wrapping.

[0004] However, this bonding solution has some shortcomings in application. First, the bonding efficiency is low: the two bending actions must be performed sequentially, and the drive components need to perform multiple positioning, pressure application, and retraction, resulting in a long cycle time. Furthermore, a holding pressure time is often required to ensure adhesion, thus restricting the overall production cycle and making it difficult to meet the demands of high-efficiency automated production. Second, the bonding quality is difficult to guarantee: during the step-by-step bending process of the foam, especially at the two bending points on the side edges, uneven stretching and compression deformation occurs due to forced bending. After bonding, the internal stress in the bending area cannot be effectively released, easily leading to stress concentration. This can cause problems such as wrinkling, warping, whitening, and even delamination of the foam at the bending points, affecting the bonding yield and the long-term reliability of the product.

[0005] Therefore, how to improve the bonding efficiency of foam while improving the stress state of the bending part and enhancing the bonding quality has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In order to improve the bonding efficiency of foam, improve the stress state of the bending part, and enhance the bonding quality, this application provides a foam bonding device.

[0007] The foam bonding device provided in this application adopts the following technical solution: A foam bonding device, comprising: A parts support platform, used to support parts; Foam support platform, used to support foam; The first drive arm has a first movable end for moving between the part carrying platform and the foam carrying platform; The bonding assembly includes a first telescopic drive and an adsorption head; the first telescopic drive is located at the first movable end, and the adsorption head is connected to the output end of the first telescopic drive; the first telescopic drive is used to drive the adsorption head to move, so that the adsorption head approaches or moves away from the edge surface of the first side of the part along a first moving path, or approaches or moves away from the bearing surface of the foam bearing platform along a second moving path; the adsorption head is used to abut against and adsorb the non-bonding surface of the foam, and the adsorption head is provided with a clearance groove for the first side of the part and the foam to be accommodated.

[0008] By adopting the above technical solution, the foam bonding efficiency is improved, while the stress state of the bending part is improved and the bonding quality is enhanced. Specifically, when bonding the foam, the first drive arm first moves the suction head to the foam support platform, and the first telescopic drive component drives the suction head to approach and adsorb the foam; then, the first drive arm moves the suction head to the part support platform, and the first telescopic drive component drives the suction head to directly approach the first edge surface of the part. In this continuous, single-push action, the suction head carries the foam towards the first edge surface of the part. The foam first contacts the first edge surface of the part, and as the suction head continues to approach, the first side of the part gradually inserts into the relief groove on the suction head. At this time, the two inner walls of the relief groove apply a compressive force to the foam, forcing the foam to complete bending in two directions simultaneously: a part of the foam is pressed onto the first surface of the part, and another part of the foam is pressed onto the second surface of the part, thus achieving a complete C-shaped wrapping in one go. This simplifies the workflow, eliminating the need for intermediate stops or waiting. A single movement of the first telescopic drive component is sufficient to complete the wrapping and bonding of the foam to the first side of the part, improving the foam bonding efficiency. Furthermore, when the first side of the part is inserted into the relief groove, the two inner walls of the groove apply synchronous and uniform pressure to the foam. This wrapping compression method ensures that the foam's bending deformation, from its initial flat state to its final C-shaped wrapping form, is completed gradually, continuously, and in a controlled manner as the suction head advances. This effectively reduces uneven stretching and compression deformation of the foam at the junction of two bends. Because the two bends occur simultaneously, the internal stress of the foam can be evenly distributed and released immediately during this compression process, thereby reducing the probability of quality problems such as wrinkling, warping, or even delamination caused by step-by-step bending, and improving the flatness, conformability, and long-term reliability of the foam bonding.

[0009] Optionally, the edge surface of the first side of the part supported on the part support platform is perpendicular to the bonding surface of the foam supported on the foam support platform; the first drive arm includes a mounting base rotatably disposed between the part support platform and the foam support platform, the mounting base is driven to rotate, and the rotation axis of the mounting base is parallel to the edge surface of the first side of the part and the bonding surface of the foam; the first movable end is located on the mounting base.

[0010] By adopting the above technical solution, after the adsorption head completes material picking up from the foam support platform along the second moving path, the mounting base only needs to rotate an angle around its axis parallel to the edge surface of the foam bonding surface and the first side of the part to switch the orientation of the adsorption head from facing the foam bonding surface to facing the edge surface of the first side of the part. In this way, the path switching can be achieved with a single rotation, making the posture conversion action of the adsorption head between the two key workstations simpler and more efficient, eliminating the need for complex multi-axis linkages or redundant translational adjustments. Subsequently, the first telescopic drive component directly drives the adsorption head along the first path to approach the first side of the part to complete the foam bonding. The entire process is smooth and the positioning is precise. This simplifies the movement trajectory of the drive arm, reduces unnecessary idle travel and posture adjustment time, thereby further compressing the single bonding cycle and improving the overall operating efficiency and operational reliability of the equipment.

[0011] Optionally, the adsorption head includes a base, two adsorption blocks, and an elastic element; the base is connected to the output end of the first telescopic drive member, and the two adsorption blocks are slidably spaced on the base along the thickness direction of the part to form the clearance groove; the adsorption blocks have multiple negative pressure holes for communicating with an external negative pressure source on the side facing away from the first telescopic drive member; the elastic element is used to drive the two adsorption blocks to tend to move closer to each other.

[0012] By adopting the above technical solution, when the first side of the part is inserted into the clearance groove, the two adsorption blocks can adaptively generate a small relative sliding amplitude under the action of the elastic element according to the actual thickness of the first side of the part. This allows the opening width of the clearance groove to dynamically match the size of the part, ensuring both smooth insertion of the part and continuous contact between the sidewalls of the adsorption blocks and the non-adhesive surface of the foam. Furthermore, the elastic element continuously applies a driving force that moves the two adsorption blocks closer together, causing them to apply uniform pressure to the foam sandwiched between them from two opposing directions, namely the first and second surfaces of the part, improving the flatness and tightness of the foam adhesion. In addition, multiple negative pressure holes on the adsorption blocks firmly adsorb the foam onto the surface of the adsorption blocks through negative pressure throughout the entire material handling and movement process, ensuring that the foam remains in a preset position before being squeezed into the clearance groove, thus guaranteeing the adhesion accuracy and quality of the foam.

[0013] Optionally, both adsorption blocks have chamfers at the opening of the relief groove.

[0014] By adopting the above technical solution, the chamfer setting is equivalent to forming a flared guide structure at the groove opening. When the first side of the part is inserted into the relief groove, this guide structure can effectively absorb the positional deviation caused by the part's positioning error or fluctuation in motion accuracy, ensuring that the first side of the part can smoothly and steadily enter the relief groove between the two adsorption blocks. This avoids damage to the part or equipment jamming caused by hard collision between the edge of the part and the sharp edge of the groove. At the same time, as the foam moves closer to the part with the adsorption head, the chamfer structure can smoothly guide the starting point of the foam's bending, making the friction and shear forces on the surface of the foam more dispersed and uniform during bending deformation, effectively reducing the creases formed by stress concentration at the root of the bend.

[0015] Optionally, a bending assembly is also included, the bending assembly comprising a bending rod and a second telescopic drive member; the bending rod is slidably disposed relative to the part-bearing platform for abutting against the foam as the adsorption head approaches the edge surface of the part on the first side along the first moving path, so that the foam bends and is at least partially placed in the clearance groove; the second telescopic drive member is used to drive the bending rod to approach or move away from the first moving path.

[0016] By adopting the above technical solution, as the adsorption head carries the foam along the first moving path towards the edge of the first side of the part, the second telescopic drive component is first controlled to drive the bending rod to move onto the first moving path, so that the bending rod abuts against the bonding surface of the foam before the first side of the part. At this time, the adsorption head continues to advance, and the foam is pre-bent under the obstruction of the bending rod, with part of the bent section entering the clearance groove in advance. Subsequently, the second telescopic drive component drives the bending rod to move out of the first moving path, and the adsorption head continues to carry the foam, which has already presented a predetermined bending shape, towards the first side of the part until the final C-shaped wrapping and bonding is completed. In this way, the step-by-step bending strategy of pre-bending and then bonding decomposes the severe one-time bending deformation that was originally borne independently by the clearance groove of the adsorption head into two stages: the first stage is guided by the bending rod to complete the initial bending of the foam at a large angle, and the second stage is completed by the clearance groove of the adsorption head to complete the precise shaping and pressing. This allows the foam to bend and deform more freely and gently, and its internal stress can be initially released during the pre-bending stage. When it is subsequently bonded to the edge of the part, the foam is already in a relatively relaxed bending state, thereby reducing the internal stress remaining at the root of the bend after final bonding. This effectively avoids wrinkling, whitening, or delamination and warping caused by stress concentration, further improving the flatness of the foam bonding and the long-term bonding reliability.

[0017] Optionally, the bending rod is a round rod, and the diameter of the bending rod is greater than or equal to the thickness of the first side of the part to be bonded to the foam.

[0018] By adopting the above technical solution, the round rod has a smooth surface and constant curvature. When the foam bends on its surface, it can form a smooth bending shape, avoiding local stress peaks or creases that may be caused by using edged rods. At the same time, it ensures that the bending rod can provide a sufficiently large bending radius, so that the pre-bent part of the foam obtains a relatively gentle transition surface. This effectively reduces the residual stress generated by the rapid deformation of the foam bending part, and allows the foam to adhere more smoothly to the first and second surfaces of the part during subsequent suction head pressing, further improving the conformity of the foam C-shaped wrapping and bonding.

[0019] Optionally, the surface of the bent rod is provided with an anti-adhesion coating.

[0020] By adopting the above technical solution, the anti-adhesion coating reduces the surface energy of the bending rod surface, forming a non-adhesive interface between it and the adhesive layer of the foam. When the bending rod completes the pre-bending function and exits from the first movement path, the anti-adhesion coating allows the bending rod to separate cleanly and neatly from the foam bonding surface without dragging or disturbing the foam. This ensures the reliable execution of the pre-bending action, prevents the adhesive layer from being contaminated or damaged, and thus maintains the initial tack of the foam when subsequently bonding it to the parts, providing a process guarantee for achieving the final bonding strength.

[0021] Optionally, the part carrying platform includes a support base and a first limiting block and a second limiting block disposed on the support base; the support base is used to carry the part, the first limiting block is used to abut against the edge surface of the part on the side opposite to the first side, and the second limiting block is used to abut against the edge surface of the part on the side adjacent to the first side.

[0022] By adopting the above technical solution, the support base provides a stable support plane. Combined with the first and second limiting blocks, physical blocking and limiting are achieved from the side of the part opposite to the first side and the side of the part adjacent to the first side, respectively, thus constraining the position of the part in two orthogonal directions within the plane. This allows the operator or loading mechanism to quickly and repeatedly place the part in the predetermined position on the support base, using the first and second limiting blocks as a reference. Each time the suction head approaches the first side of the part with the same movement trajectory, because the part has been accurately positioned, the relative positional relationship between the suction head's clearance groove and the first side of the part remains consistent, thereby ensuring that the foam can be stably adhered to the preset position on the first side of the part.

[0023] Optionally, the part carrying platform further includes a first push block, a second push block, a first driving component, and a second driving component; the first push block is slidably disposed relative to the first limiting block and is used to abut against the edge surface of a first side of the part; the second push block is slidably disposed relative to the second limiting block and is used to abut against the edge surface of the part on the side away from the second limiting block; the first driving component is used to drive the first push block closer to or away from the first limiting block, and the second driving component is used to drive the second push block closer to or away from the second limiting block.

[0024] By adopting the above technical solution, after the part is placed on the support, the first driving component drives the first push block to move towards the first limiting block, pushing the part from the first side until it is pressed tightly against the first limiting block; similarly, the second driving component drives the second push block to move towards the second limiting block, pressing the part tightly against the second limiting block. This eliminates the gap between the part and the first and second limiting blocks, ensuring that the part is always pushed to a fixed reference angle position defined by the first and second limiting blocks, thus guaranteeing the accuracy and consistency of the adsorption head carrying the foam for bonding. After completing the position calibration of the part, the first driving component can reverse the direction to drive the first push block away from the part, and the second driving component can reverse the direction to drive the second push block away from the part, facilitating subsequent bonding of the foam to the part and removal of the part from the support.

[0025] Optionally, a transfer assembly is also included, the transfer assembly comprising a second drive arm and a first pick-up component; the second drive arm has a second movable end for moving between the part carrying platform and the unloading station, and the first pick-up component is connected to the second movable end for picking up and placing parts.

[0026] By adopting the above technical solution, after the bonding action is completed, the second drive arm drives the first pick-up component to move above the part carrying platform, picks up the bonded part, and then transfers it to the preset unloading station. This achieves seamless connection between the bonding process and the unloading process, improves the automation level and production cycle of the equipment, and enhances production efficiency.

[0027] In summary, this application includes the following beneficial technical effects: 1. Shorten bonding time: The first telescopic drive component can complete the C-shaped wrapping of foam on the first side of the part with a single push action, without the need for multiple positioning, pressure application and retraction, thus improving bonding efficiency; 2. Optimize the stress distribution during the foam bending process, reduce stress concentration in the bending area, avoid problems such as wrinkling, warping, whitening and delamination of the foam, and improve the bonding quality; 3. The first and second limiting blocks accurately constrain the position of the parts, ensuring that the clearance groove of the adsorption head is aligned with the first side of the parts, thus guaranteeing precise foam bonding. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the foam bonding device according to an embodiment of this application.

[0029] Figure 2 The main focus is on the first drive arm and bonding assembly in the embodiments of this application.

[0030] Figure 3 This application primarily showcases the component support platform and bending assembly in its embodiments.

[0031] Figure 4 This mainly showcases the transfer components in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 100, Part; 101, First side; 1, Part support platform; 11, Support base; 12, First limiting block; 13, Second limiting block; 14, First push block; 15, Second push block; 16, First drive assembly; 161, Third telescopic drive component; 162, Fourth telescopic drive component; 17, Second drive assembly; 171, Fifth telescopic drive component; 2, Foam support platform; 3, First drive arm; 30, First movable end; 31, Base; 32, Mounting base; 4, Adhesion assembly; 41, First telescopic drive component; 42, Adsorption head; 421. 422. Base; 4210. Adsorption block; 4220. Clearance groove; 4220. Negative pressure hole; 423. Elastic element; 5. Bending assembly; 51. Bending rod; 52. Second telescopic drive component; 6. Transfer assembly; 61. Second drive arm; 610. Second movable end; 611. First slide rail; 612. First slide block; 613. Sixth telescopic drive component; 62. First pickup component; 63. Third drive arm; 631. Second slide rail; 632. Second slide block; 633. Seventh telescopic drive component; 64. Second pickup component; 7. Raw material uncoiler; 8. Raw material conveyor line; 10. Frame. Detailed Implementation

[0033] The following combination Figures 1-4 This application will be described in further detail.

[0034] This application discloses a foam bonding device.

[0035] Reference Figure 1 and Figure 2 In this embodiment, the foam bonding equipment includes a frame 10 and a parts carrying platform 1, a foam carrying platform 2, a first drive arm 3, a bonding component 4, a bending component 5, a transfer component 6, a raw material unwinder 7, and a raw material conveying line 8 mounted on the frame 10.

[0036] The component support platform 1 is used to support component 100; the foam support platform 2 is used to support foam; and the first drive arm 3 has a first movable end 30 for moving between the component support platform 1 and the foam support platform 2.

[0037] The bonding assembly 4 includes a first telescopic drive member 41 and an adsorption head 42. The first telescopic drive member 41 is located at the first movable end 30, and the adsorption head 42 is connected to the output end of the first telescopic drive member 41. The first telescopic drive member 41 drives the adsorption head 42 to move, so that the adsorption head 42 moves closer to or away from the edge surface of the first side 101 of the part 100 along a first moving path, or moves closer to or away from the bearing surface of the foam bearing platform 2 along a second moving path. The adsorption head 42 is used to abut against and adsorb the non-bonding surface of the foam, and the adsorption head 42 is provided with a clearance groove for the first side 101 of the part 100 and the foam to be accommodated.

[0038] Specifically, the part support platform 1 is located diagonally above the foam support platform 2. The support surfaces of both the part support platform 1 and the foam support platform 2 are parallel to the horizontal plane. The edge surface of the first side 101 of the part 100 supported on the part support platform 1 is perpendicular to the bonding surface of the foam supported on the foam support platform 2.

[0039] The first drive arm 3 includes a base 31 and a mounting base 32. The base 31 is fixedly mounted on the frame 10, and the mounting base 32 is rotatably connected to the base 31 and located between the bearing surface of the part bearing platform 1 and the foam bearing platform 2. The first movable end 30 is located on the mounting base 32.

[0040] Mounting base 32 is driven to rotate. A combination of a servo motor and a gear reducer can be selected. The servo motor drives the input shaft of the gear reducer to rotate, and the output shaft of the gear reducer is connected to the mounting base 32 to drive the mounting base 32 to rotate. The rotation axis of the mounting base 32 is parallel to the edge surface of the first side 101 of the part 100 and the contact surface of the foam.

[0041] The first telescopic drive component 41 can be selected from one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The fixed end of the first telescopic drive component 41 is fixed on the mounting base 32, and the adsorption head 42 is fixedly installed on the output end of the first telescopic drive component 41.

[0042] When bonding the foam, the first drive arm 3 first moves the suction head 42 toward the foam support platform 2 by rotating the mounting base 32. The first telescopic drive member 41 then drives the suction head 42 to approach and adsorb the foam along the second moving path. Subsequently, the first drive arm 3 rotates the mounting base 32 by a predetermined angle to move the suction head 42 toward the part support platform 1. The first telescopic drive member 41 then drives the suction head 42 to directly approach the edge surface of the first side 101 of the part 100.

[0043] In this continuous, single-push motion, the suction head 42 carries the foam closer to the edge surface of the first side 101 of the part 100. The foam first contacts the edge surface of the first side 101 of the part 100. As the suction head 42 continues to approach, the first side 101 of the part 100 gradually inserts into the relief groove on the suction head 42. At this time, the two inner sidewalls of the relief groove apply a compressive force to the foam, forcing the foam to bend in two directions simultaneously: a portion of the foam is pressed onto the first surface of the part 100, and another portion of the foam is pressed onto the second surface of the part 100, thus achieving a complete C-shaped covering in one go.

[0044] This simplifies the action sequence, eliminating the need for intermediate stops or waiting. A single movement of the first telescopic drive component 41 is sufficient to complete the wrapping and bonding of the foam to the first side 101 of the part 100, improving the bonding efficiency of the foam and reducing uneven stretching and compression deformation of the foam at the junction of two bends. By simultaneously performing two bends on the foam, the internal stress of the foam can be evenly distributed and released immediately during the compression process, thereby reducing the probability of quality problems such as wrinkling, warping, or even delamination caused by step-by-step bending, and improving the flatness, conformability, and long-term reliability of the foam bonding.

[0045] Furthermore, after the adsorption head 42 completes material removal from the foam support platform 2 along the second moving path, the mounting base 32 only needs to rotate an angle around its axis parallel to the edge surface of the foam bonding surface and the first side 101 of the part 100 to switch the orientation of the adsorption head 42 from facing the foam bonding surface to facing the edge surface of the first side 101 of the part 100. In this way, the path switching can be achieved with a single rotation, making the attitude conversion action of the adsorption head 42 between the two key workstations simpler and more efficient, eliminating the need for complex multi-axis linkages or redundant translational adjustments. This simplifies the motion trajectory of the drive arm, reduces unnecessary idle travel and attitude adjustment time, thereby further compressing the single bonding cycle and improving the overall operating efficiency and operational reliability of the equipment.

[0046] Reference Figure 1 and Figure 3 In this embodiment, the part carrying platform 1 includes a support base 11, a first limiting block 12, a second limiting block 13, a first push block 14, a second push block 15, a first drive assembly 16, and a second drive assembly 17. The support base 11 can be a rectangular plate-shaped component. The support base 11 is fixedly installed on the frame 10, and the top surface of the support base 11 is parallel to the horizontal plane for carrying the part 100.

[0047] Both the first limiting block 12 and the second limiting block 13 can be strip-shaped blocks, and both are fixedly installed on the top surface of the support base 11. The first limiting block 12 extends parallel to the horizontal plane and the edge surface of the first side 101 of the part 100, and is used to abut against the edge surface of the part 100 on the side opposite to its own first side 101. The second limiting block 13 extends parallel to the horizontal plane and perpendicular to the edge surface of the first side 101 of the part 100, and is used to abut against the edge surface of the part 100 on the side adjacent to its own first side 101.

[0048] The support base 11 provides a stable support plane. Combined with the first limiting block 12 and the second limiting block 13, it physically blocks and limits the part 100 from the side opposite to its own first side 101 and the side adjacent to its own first side 101, respectively, thereby constraining the position of the part 100 in two orthogonal directions in the plane. This allows the part 100 to be accurately positioned on the support base 11 quickly and repeatedly, using the first limiting block 12 and the second limiting block 13 as a reference, during loading.

[0049] The first drive assembly 16 is used to drive the first push block 14 to move closer to or further away from the first limit block 12. The first drive assembly 16 includes a third telescopic drive member 161 and a fourth telescopic drive member 162. Both the third telescopic drive member 161 and the fourth telescopic drive member 162 can be selected from one of the following: a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The fixed end of the third telescopic drive member 161 is fixedly mounted on the frame 10, and the fixed end of the fourth telescopic drive member 162 is fixedly mounted on the drive end of the third telescopic drive member 161. The output direction of the third telescopic drive member 161 is parallel to the second moving path, and the output direction of the fourth telescopic drive member 162 is parallel to the first moving path.

[0050] The first push block 14 is used to abut against the edge surface of the first side 101 of the part 100. The first push block 14 is fixedly installed on the driving end of the fourth telescopic drive member 162 to form a slidable positional relationship with respect to the first limiting block 12.

[0051] The second drive assembly 17 is used to drive the second push block 15 to move closer to or further away from the second limit block 13. The second drive assembly 17 includes a fifth telescopic drive member 171, which can be selected from a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. The fixed end of the fifth telescopic drive member 171 is fixedly mounted on the frame 10, and the output direction of the fifth telescopic drive member 171 is parallel to the horizontal plane and the edge surface of the first side 101 of the part 100.

[0052] The second push block 15 is used to abut against the edge surface of the part 100 on the side away from the second limiting block 13. The second push block 15 is fixedly installed on the driving end of the fifth telescopic drive member 171 to form a slidable positional relationship with respect to the second limiting block 13.

[0053] The foam support platform 2 can be a plate-shaped component with an anti-adhesion coating on its top surface, and the foam support platform 2 is fixedly connected to the frame 10. The raw material unwinder 7 is located on one side of the foam support platform 2 and is used to feed the pre-cut foam to be laminated onto the foam support platform 2.

[0054] In other embodiments, the first drive assembly 16 may also consist of two sets of slide rail drive members, with the slide rail of the first set of slide rail drive members fixed on the frame 10, and the slide rail of the second set of slide rail drive members fixed on the slide of the first set of slide rail drive members, and the first push block 14 mounted on the slide of the second set of slide rail drive members; the second drive assembly 17 may also be other forms of linear sliding drive members.

[0055] After part 100 is placed on the support seat 11, the first drive assembly 16 drives the first push block 14 to move toward the first limit block 12, pushing part 100 from the side of part 100 away from the first limit block 12 until part 100 is pressed tightly onto the first limit block 12; similarly, the second drive assembly 17 drives the second push block 15 to move toward the second limit block 13, pressing part 100 tightly onto the second limit block 13.

[0056] This eliminates the gap between part 100 and the first limiting block 12 and the second limiting block 13. Part 100 is pushed to a fixed reference angle position defined by the first limiting block 12 and the second limiting block 13 each time, thus ensuring the accuracy and consistency of the adsorption head 42 when carrying the foam for bonding. After completing the position calibration of part 100, the first drive assembly 16 can drive the first push block 14 away from part 100 in the reverse direction, and the second drive assembly 17 can drive the second push block 15 away from part 100 in the reverse direction, so as to facilitate the subsequent bonding of the foam to part 100 and the removal of part 100 from the carrier 11.

[0057] Reference Figure 1 and Figure 2 In this embodiment, the adsorption head 42 includes a base 421, two adsorption blocks 422, and an elastic member 423. One side of the base 421 is fixedly connected to the output end of the first telescopic drive member 41. The two adsorption blocks 422 are slidably spaced relative to each other along the thickness direction of the part 100 on the side of the base 421 opposite to the output end of the first telescopic drive member 41, so as to form a clearance groove 4210 between the two adsorption blocks 422. The sliding connection between the adsorption blocks 422 and the base 421 can be achieved by the sliding engagement of the sliding holes opened on the adsorption blocks 422 and the guide rods provided on the base 421.

[0058] The adsorption block 422 has multiple negative pressure holes 4220 on the side facing away from the output end of the first telescopic drive member 41. The negative pressure holes 4220 are connected to an external negative pressure source. The negative pressure source can be an air pump, which adsorbs the foam by creating negative pressure in the negative pressure holes 4220 to ensure that the foam is always in a preset position before being squeezed in the relief groove 4210.

[0059] The elastic element 423 is used to drive the two adsorption blocks 422 to move closer to each other. The elastic element 423 can be two springs, with one spring corresponding to one adsorption block 422. One end of the spring is fixedly connected to the adsorption block 422, and the other end of the spring is fixedly connected to the base 421.

[0060] In other embodiments, the sliding connection between the adsorption block 422 and the base 421 can also be achieved by the sliding engagement of the groove on the adsorption block 422 and the slide rail on the base 421; the elastic element 423 can also be a tension spring, with the middle part of the tension spring fixed on the base 421, one end of the tension spring connected to one adsorption block 422, and the other end of the tension spring connected to another adsorption block 422.

[0061] When the first side 101 of part 100 is inserted into the relief groove 4210, the two adsorption blocks 422 can adaptively produce a small relative sliding under the action of the elastic element 423 according to the actual thickness of the first side 101 of part 100, so that the opening width of the relief groove 4210 can dynamically match the size of part 100, thereby ensuring that part 100 can be smoothly inserted and that the side wall of adsorption block 422 can continuously maintain contact with the non-adhesive surface of foam.

[0062] The elastic element 423 continuously applies a driving force to the two adsorption blocks 422, causing them to approach each other. This results in the two adsorption blocks 422 applying a uniform pressing force to the foam sandwiched between them from two opposite directions, namely the first surface and the second surface of the part 100, thereby improving the flatness and tightness of the foam bonding.

[0063] Preferably, each of the adsorption blocks 422 has a chamfer at the opening of the relief groove 4210. The chamfer effectively forms a flared guide structure at the opening. When the first side 101 of the part 100 is inserted into the relief groove 4210, the chamfer allows the first side 101 of the part 100 to enter the relief groove 4210 between the two adsorption blocks 422 smoothly and steadily, avoiding damage to the part 100 or equipment jamming caused by a hard collision between the part 100 and the sharp edge of the relief groove 4210. At the same time, as the foam moves closer to the part 100 with the adsorption head 42, the chamfer smoothly guides the starting point of the foam's bending, making the friction and shear forces on the surface of the foam more dispersed and uniform during bending deformation, thereby reducing the creases formed by stress concentration at the root of the bend.

[0064] Reference Figure 1 and Figure 3 In this embodiment, the bending assembly 5 includes a bending rod 51 and a second telescopic drive member 52. The second telescopic drive member 52 is used to drive the bending rod 51 closer to or further away from the first moving path. The second telescopic drive member 52 can be selected from one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The fixed end of the second telescopic drive member 52 is fixed to the frame 10. The bending rod 51 can be a straight rod. One end of the bending rod 51 is fixedly installed at the output end of the second telescopic drive member 52, and the other end of the bending rod 51 extends away from the second telescopic drive member 52 to form a slidable positional relationship relative to the part carrying platform 1.

[0065] The bending rod 51 is used to abut against the foam as the adsorption head 42 approaches the edge surface of the first side 101 of the part 100 along the first moving path, so that the foam bends and is at least partially placed in the relief groove 4210.

[0066] Two sets of bending components 5 are arranged radially along a plane perpendicular to the extension direction of the bending rod 51, with the two bending rods 51 in the two sets of bending components 5 facing each other. The total length of the two bending rods 51 needs to be greater than the length of the foam to ensure that all parts of the foam can be pre-bent along its length.

[0067] In other embodiments, the bending assembly 5 may be provided in only one set, ensuring that the length of a single bending rod 51 is greater than the length of the foam; the bending rod 51 may also be replaced with a plate-shaped component with at least one straight edge.

[0068] As the suction head 42 carries the foam along the first moving path toward the edge of the first side 101 of the part 100, the second telescopic drive member 52 is first controlled to drive the bending rod 51 to move onto the first moving path, so that the bending rod 51 abuts against the bonding surface of the foam before the first side 101 of the part 100. At this time, the suction head 42 continues to advance, and the foam is pre-bent under the obstruction of the bending rod 51, and part of the bent section enters the clearance groove 4210 in advance. Subsequently, the second telescopic drive member 52 drives the bending rod 51 to move out of the first moving path, and the suction head 42 continues to carry the foam, which has already presented a predetermined bending shape, toward the first side 101 of the part 100 until the final C-shaped wrapping and bonding is completed.

[0069] In this way, the severe one-time bending deformation, which was originally handled independently by the clearance groove 4210 of the adsorption head 42, is decomposed into two stages: in the first stage, the bending rod 51 guides the foam to complete the initial large-angle bending, and in the second stage, the clearance groove 4210 of the adsorption head 42 completes the precise shaping and pressing. When it is subsequently bonded to the edge surface of the first part of the component 100, the foam is already in a relatively relaxed bending state, thereby reducing the internal stress remaining at the root of the bend after final bonding, and further improving the flatness of the foam bonding and the long-term bonding reliability.

[0070] In this embodiment, the bending rod 51 is preferably a round rod. The surface of the round rod is smooth and the curvature is constant. When the foam is bent on its surface, it can form a smooth bending shape, avoiding local stress peaks or creases that may be caused by using edge rods.

[0071] Furthermore, the diameter of the bending rod 51 is equal to the thickness of the first side 101 of the part 100 where it is to be bonded to the foam. This ensures that the bending rod 51 can provide a sufficiently large bending radius, allowing the pre-bent portion of the foam to obtain a relatively smooth transition surface. This effectively reduces the residual stress caused by the rapid deformation of the foam bending area, and allows the foam to adhere more smoothly to the first and second surfaces of the part 100 when the subsequent suction head 42 presses it in, further improving the conformity of the foam C-shaped wrapping and bonding.

[0072] The surface of the bending rod 51 is coated with an anti-adhesion coating, which may be a Teflon coating. The anti-adhesion coating reduces the surface energy of the bending rod 51, creating a non-adhesive interface between it and the adhesive layer of the foam. When the bending rod 51 completes its pre-bending function and exits from the first movement path, the anti-adhesion coating allows the bending rod 51 to separate cleanly and neatly from the foam bonding surface without dragging or disturbing the foam.

[0073] In other embodiments, the bent rod 51 may also be a straight rod with an elliptical cross-section or a straight rod with an irregular cross-section whose cross-sectional profile has a curve having at least half the perimeter; the diameter of the bent rod 51 may also be greater than the thickness of the first side 101 of the part 100 to be attached to the foam.

[0074] Reference Figure 1 and Figure 4In this embodiment, the transfer assembly 6 includes a second drive arm 61, a first pickup 62, a third drive arm 63, and a second pickup 64. The second drive arm 61 has a second movable end 610 for moving between the part carrying platform 1 and the unloading station. The second drive arm 61 includes a first slide rail 611, a first slide block 612, and a sixth telescopic drive member 613. The first slide rail 611 is fixedly mounted on the frame 10, with one end extending above the part carrying platform 1 and the other end extending to the unloading station. The first slide block 612 is slidably connected to the first slide rail 611 and is driven to slide along the first slide rail 611.

[0075] The sixth telescopic drive member 613 can be selected from a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The fixed end of the sixth telescopic drive member 613 is fixedly connected to the first slide block 612, and the second movable end 610 is located on the output end of the sixth telescopic drive member 613. The first pickup member 62 is fixedly connected to the second movable end 610 and is used to pick up and put down the part 100. It can be an electric suction cup.

[0076] After the bonding action is completed, the second drive arm 61 drives the first pick-up piece 62 to move above the part carrying platform 1, picks up the bonded part 100, and then transfers it to the preset unloading station. This achieves a seamless connection between the bonding process and the unloading process, improves the automation level and production cycle of the equipment, and enhances production efficiency.

[0077] The raw material conveying line 8 can be a belt conveyor, located on one side of the parts carrying platform 1, for supplying semi-finished parts 100 to be bonded with foam. The third drive arm 63 includes a second slide rail 631, a second slide block 632, and a seventh telescopic drive component 633. The second slide rail 631 and the first slide rail 611 can be an integral structure; the second slide rail 631 is fixedly mounted on the frame 10, with one end extending above the parts carrying platform 1 and the other end extending above the raw material conveying line 8. The second slide block 632 is slidably connected to the second slide rail 631 and is driven to slide along the second slide rail 631.

[0078] The seventh telescopic drive component 633 can be selected from one of a pneumatic cylinder, an electric cylinder, and a hydraulic cylinder. The fixed end of the seventh telescopic drive component 633 is fixedly connected to the second slide block 632. The second pickup component 64 is fixedly connected to the second slide block 632 and is used to pick up and put down the part 100. It can be an electric suction cup.

[0079] When part 100 needs to be bonded with foam, the third drive arm 63 drives the second pickup component 64 to move above the raw material conveyor line 8, picks up the part 100 to be bonded, and then transfers it to the part carrying platform 1 for foam bonding. This achieves seamless connection between the feeding process and the bonding process, improves the automation level and production cycle of the equipment, and enhances production efficiency.

[0080] The implementation principle of this embodiment is as follows: The foam bonding equipment achieves efficient and high-quality bonding of foam onto part 100 through the coordinated work of its components. The design of the bonding mechanism allows the foam to complete C-shaped wrapping in one go, simplifying the action cycle and improving bonding efficiency. Simultaneously, the elastic structure of the suction head 42 and the pre-bending function of the bending component 5 effectively improve the stress state of the foam bending portion, reducing wrinkling, warping, and other problems, thus improving bonding quality. The limiting and pushing block structure of the part carrying platform 1 ensures the accurate positioning of part 100, further improving bonding precision. The transfer component 6 enables automatic loading and unloading of part 100, improving the automation level and production efficiency of the equipment.

[0081] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foam bonding device, characterized in that, include: Part support platform (1) is used to support part (100). Foam support platform (2) is used to support foam; The first drive arm (3) has a first movable end (30) for moving between the part carrying platform (1) and the foam carrying platform (2). The bonding assembly (4) includes a first telescopic drive (41) and an adsorption head (42); the first telescopic drive (41) is located at the first movable end (30), and the adsorption head (42) is connected to the output end of the first telescopic drive (41); the first telescopic drive (41) is used to drive the adsorption head (42) to move so that the adsorption head (42) moves closer to or away from the edge surface of the first side (101) of the part (100) along a first moving path, or moves closer to or away from the bearing surface of the foam bearing platform (2) along a second moving path; the adsorption head (42) is used to abut against and adsorb the non-bonding surface of the foam, and the adsorption head (42) is provided with a relief groove (4210) for the first side (101) of the part (100) and the foam to be accommodated.

2. The foam bonding equipment according to claim 1, characterized in that: The edge surface of the first side (101) of the part (100) supported on the part support platform (1) is perpendicular to the contact surface of the foam supported on the foam support platform (2); the first drive arm (3) includes a mounting base (32) rotatably disposed between the part support platform (1) and the foam support platform (2), the mounting base (32) is driven to rotate, and the rotation axis of the mounting base (32) is parallel to the edge surface of the first side (101) of the part (100) and the contact surface of the foam; the first movable end (30) is located on the mounting base (32).

3. The foam bonding equipment according to claim 1, characterized in that: The adsorption head (42) includes a base (421), two adsorption blocks (422), and an elastic element (423). The base (421) is connected to the output end of the first telescopic drive (41). The two adsorption blocks (422) are slidably spaced on the base (421) along the thickness direction of the part (100) to form the clearance groove (4210). The adsorption block (422) has a plurality of negative pressure holes (4220) for communicating with an external negative pressure source on the side facing away from the first telescopic drive (41). The elastic element (423) is used to drive the two adsorption blocks (422) to move closer to each other.

4. The foam bonding equipment according to claim 3, characterized in that: Both adsorption blocks (422) are chamfered at the opening of the relief groove (4210).

5. The foam bonding equipment according to claim 1, characterized in that: It also includes a bending assembly (5), which includes a bending rod (51) and a second telescopic drive (52); the bending rod (51) is slidably disposed relative to the part support platform (1) and is used to abut against the foam as the adsorption head (42) adsorbs the foam and moves toward the edge surface of the first side (101) of the part (100) along the first moving path, so that the foam bends and is at least partially placed in the relief groove (4210); the second telescopic drive (52) is used to drive the bending rod (51) to move closer to or away from the first moving path.

6. The foam bonding equipment according to claim 5, characterized in that: The bent rod (51) is a round rod, and the diameter of the bent rod (51) is greater than or equal to the thickness of the first side (101) of the part (100) to be bonded to the foam.

7. The foam bonding equipment according to claim 5, characterized in that: The surface of the bent rod (51) is provided with an anti-adhesion coating.

8. The foam bonding equipment according to claim 1, characterized in that: The part carrying platform (1) includes a support base (11) and a first limiting block (12) and a second limiting block (13) disposed on the support base (11); the support base (11) is used to carry the part (100), the first limiting block (12) is used to abut against the edge surface of the part (100) opposite to the first side (101), and the second limiting block (13) is used to abut against the edge surface of the part (100) adjacent to the first side (101).

9. A foam bonding device according to claim 8, characterized in that: The part carrying platform (1) further includes a first push block (14), a second push block (15), a first drive assembly (16), and a second drive assembly (17); the first push block (14) is slidably disposed relative to the first limiting block (12) and is used to abut against the edge surface of the first side (101) of the part (100); the second push block (15) is slidably disposed relative to the second limiting block (13) and is used to abut against the edge surface of the part (100) on the side away from the second limiting block (13); the first drive assembly (16) is used to drive the first push block (14) to move closer to or away from the first limiting block (12), and the second drive assembly (17) is used to drive the second push block (15) to move closer to or away from the second limiting block (13).

10. A foam bonding device according to claim 1, characterized in that: It also includes a transfer assembly (6), which includes a second drive arm (61) and a first pick-up piece (62); the second drive arm (61) has a second movable end (610) for moving between the part carrying platform (1) and the unloading station, and the first pick-up piece (62) is connected to the second movable end (610) for picking up and placing parts (100).

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