Foam feeding device of foam assembly machine
By combining correction and detection components in the foam feeding device and using the pre-set clearance holes in the foam for precise correction, the problem of foam position deviation is solved, thereby improving the automated assembly efficiency and product quality of the foam assembly machine.
Patent Information
- Application Number
- CN202521985599.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
Traditional foam feeding devices struggle to accurately correct initial positional deviations in foam, impacting subsequent assembly processes and leading to high product defect rates and increased rework costs.
By combining correction and detection components, the foam itself has a pre-set clearance hole as a positioning reference. The correction pin is driven by a snail cam for precise correction. Combined with modular side baffles and adjustable side baffles, the foam can be accurately positioned and stably transported.
It achieves efficient and precise positioning of foam, reduces the risk of defective products flowing into subsequent processes, improves the stability and compatibility of automated assembly, and reduces rework costs.
Smart Images
Figure CN224677163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam assembly machine technology, specifically to a foam feeding device for a foam assembly machine. Background Technology
[0002] A foam assembly machine is a type of mechanical equipment specifically designed for the automated production of foam products. It is widely used in various industries such as packaging, electronics, automotive, and medical. This equipment achieves efficient assembly of foam products by precisely controlling processes such as cutting, forming, and bonding of foam materials. Its working principle typically includes automatic material feeding, cutting and forming, automatic bonding, and final product output, which can significantly improve production efficiency and product quality, reduce manual operation, and lower production costs. The foam feeding device is a key component of the foam assembly machine. It is responsible for automatically conveying the foam material to the processing position. In the foam buffer pad of electronic equipment, the foam needs to avoid the screw posts, column buckles and other structures on the housing. Therefore, assembly avoidance holes are preset to prevent interference with subsequent assembly. During the foam feeding process, the external feeding mechanism pushes the foam from the hopper onto the feeding guide plate. However, due to the slight positional differences among the individual foams in the hopper and the minute differences in the pushing force of the external feeding mechanism, the foam inevitably experiences an initial positional deviation when entering the feeding guide plate. Although traditional feeding devices have side baffles to limit significant positional deviation of the foam, they are difficult to correct the deviation of the foam more accurately, which will affect subsequent assembly processes, cause poor assembly of batch products, and increase rework costs. Therefore, a foam feeding device for a foam assembly machine is proposed to address the above problems. Utility Model Content
[0003] The purpose of this utility model is to provide a foam feeding device for a foam assembly machine to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A foam feeding device for a foam assembly machine includes a frame, a feeding guide plate fixedly mounted on the top of the frame, a side baffle assembly on the feeding guide plate, a correction hole in the middle of the feeding guide plate, a detection assembly above the feeding guide plate, a support platform fixedly mounted on the frame, a correction assembly mounted on the top of the support platform, the correction assembly including a correction box fixedly connected to the center of the top of the support platform, a snail cam in the inner cavity of the correction box, a drive rod above the snail cam, the top of the drive rod penetrating the top wall of the correction box, the top of the drive rod extending above the correction box and below the feeding guide plate, and a correction structure above the drive rod.
[0005] As a further optimization of this utility model, the side baffle assembly includes side baffles arranged symmetrically front and back. The side baffles are snapped onto the top of the feeding guide plate. The left and right ends of the side baffles are symmetrically provided with first positioning holes. The left and right ends of the feeding guide plate are symmetrically provided with multiple second positioning holes. Positioning pins for positioning the side baffles and the feeding guide plate are inserted into the first and second positioning holes.
[0006] As a further optimization of this utility model, the detection component includes a detection bracket and a detection camera. The detection bracket is arranged symmetrically front and back. One end of the detection bracket is fixedly connected to the front and back sides of the frame, and the other end of the detection bracket is fixedly connected to the detection camera. The positions of the detection camera and the correction hole correspond.
[0007] As a further optimization of this utility model, a drive motor is installed at the center of the rear wall of the correction box, and a transmission shaft is fixedly connected to the output end of the drive motor. The front end of the transmission shaft passes through the rear wall of the correction box and extends into the inner cavity of the correction box. The front end of the transmission shaft is fixedly connected to the center of the snail cam.
[0008] As a further optimization of this utility model, the following features are provided: a drive pulley is provided at the rear bottom of the drive support rod, the drive pulley is rotatably connected to the drive support rod through a connecting shaft, and the lower surface of the drive pulley abuts against the upper surface of the snail cam.
[0009] As a further optimization of this utility model, the correction structure includes a correction plate, the top end of the drive rod is fixedly connected to the center of the bottom of the correction plate, and multiple threaded connecting posts are fixedly connected to the correction plate. The multiple threaded connecting posts and correction holes are evenly distributed in an array with equal number and corresponding positions.
[0010] As a further optimization of this utility model, the threaded connecting post is provided with a correction pin above it, and the bottom of the correction pin is provided with a threaded connecting groove that is compatible with the threaded connecting post. The correction pin is threadedly connected to the threaded connecting post through the threaded connecting groove, and the correction pin is compatible with the correction hole specification.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention can target foam with pre-set clearance holes and fully utilize the foam's own pre-set clearance holes as positioning references without the need for additional holes. It can more accurately correct the initial positional deviation and ensure precise clearance during subsequent assembly. By adopting modular correction components and adjustable side guard components, specification switching can be completed in a short time, enhancing compatibility and changeover efficiency, preventing defective products from flowing into subsequent processes, and significantly reducing rework costs. It provides an efficient and stable conveying solution for the automated assembly of foam with pre-set clearance holes. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is a structural schematic diagram of the side guard assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the modified component of this utility model; Figure 6 This is an exploded view of the structure of the modified component of this utility model; Figure 7 This is a cross-sectional view of the correction box of this utility model; Figure 8 This utility model Figure 6 Enlarged view of point A.
[0013] In the diagram: 1. Frame; 2. Feeding guide plate; 3. Side baffle assembly; 31. Side baffle; 32. First positioning hole; 33. Second positioning hole; 34. Positioning pin; 4. Correction hole; 5. Detection assembly; 51. Detection bracket; 52. Detection camera; 6. Support platform; 7. Correction assembly; 71. Correction box; 72. Snail cam; 73. Drive rod; 74. Drive motor; 75. Transmission shaft; 76. Drive pulley; 77. Correction structure; 771. Correction plate; 772. Threaded connecting post; 773. Correction pin; 774. Threaded connecting groove. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0016] Please see Figures 1-8 This utility model provides a technical solution: A foam feeding device for a foam assembly machine includes a frame 1. A feeding guide plate 2 is fixedly installed on the top of the frame 1. A side baffle assembly 3 is provided on the feeding guide plate 2. A correction hole 4 is opened in the middle of the feeding guide plate 2. A detection assembly 5 is provided above the feeding guide plate 2. A support platform 6 is fixedly installed on the frame 1. A correction assembly 7 is installed on the top of the support platform 6. The correction assembly 7 includes a correction box 71 fixedly connected to the center of the top of the support platform 6. A snail cam 72 is provided in the inner cavity of the correction box 71. A drive rod 73 is provided above the snail cam 72. The top of the drive rod 73 penetrates the top wall of the correction box 71. The top of the drive rod 73 extends above the correction box 71 and is located below the feeding guide plate 2. A correction structure 77 is provided above the drive rod 73.
[0017] It should be noted that: the device uses the frame 1 as the overall support frame, and the top-fixed feeding guide plate 2 provides a flat channel for foam conveying. Its surface is smoothed to reduce the frictional resistance during foam conveying. The side baffle assembly 3 serves as the primary guide structure and consists of symmetrical front and rear side baffles 31, which are locked on the top of the feeding guide plate 2 to form a lateral constraint space. As a further implementation of this solution, the side baffle assembly 3 includes a side baffle 31 arranged symmetrically in front and behind. The side baffle 31 is snapped onto the top of the feeding guide plate 2. The left and right ends of the side baffle 31 are symmetrically provided with first positioning holes 32. The left and right ends of the feeding guide plate 2 are symmetrically provided with multiple second positioning holes 33. Positioning pins 34 for positioning the side baffle 31 and the feeding guide plate 2 are inserted into the first positioning holes 32 and the second positioning holes 33. It should be noted that the first positioning holes 32 at both ends of the side baffle 31 and the multiple second positioning holes 33 on the feeding guide plate 2 are fixed by positioning pins 34. The distance between the two side baffles 31 can be adjusted according to the width specifications of the foam, flexibly adapting to the conveying needs of foams of different sizes and preventing the foam from shifting laterally during the feeding process. As a further implementation of this solution, the detection component 5 includes a detection bracket 51 and a detection camera 52. The detection bracket 51 is arranged symmetrically in front and behind. One end of the detection bracket 51 is fixedly connected to the front and rear sides of the frame 1, and the other end of the detection bracket 51 is fixedly connected to the detection camera 52. The position of the detection camera 52 corresponds to that of the correction hole 4. It should be noted that the detection component 5 above the feeding guide plate 2 is responsible for real-time monitoring of the foam position accuracy. One end of the detection bracket 51 is fixed to the front and rear sides of the frame 1, and the other end extends above the feeding guide plate 2 and fixes the detection camera 52. The camera lens is directly facing the correction hole 4 in the middle of the feeding guide plate 2, forming a "top-down detection angle". This positional design can accurately capture the position information of the foam when it passes through the correction hole 4 area and can transmit the information to the drive motor 74, providing data for subsequent correction actions and ensuring the targeted nature of the correction. As a further implementation of this solution, a drive motor 74 is installed at the center of the rear wall of the correction box 71. The output end of the drive motor 74 is fixedly connected to a transmission shaft 75. The front end of the transmission shaft 75 passes through the rear wall of the correction box 71 and extends into the inner cavity of the correction box 71. The front end of the transmission shaft 75 is fixedly connected to the center of the snail cam 72. A drive pulley 76 is provided at the bottom of the rear side of the drive support rod 73. The drive pulley 76 is rotatably connected to the drive support rod 73 through a connecting shaft, and the lower surface of the drive pulley 76 abuts against the upper surface of the snail cam 72. It should be noted that: the support platform 6 at the top of the frame 1 provides stable support for the correction component 7. The correction component 7 realizes dynamic correction of the foam position through mechanical transmission. The correction box 71 is fixed to the top of the support platform 6. The snail cam 72 in the inner cavity is driven to rotate by the drive motor 74 on the rear wall through the transmission shaft 75. The curved contour of the snail cam 72 abuts against the drive pulley 76 at the bottom of the drive rod 73. When the snail cam 72 rotates, the change in the height of the curved surface pushes the drive pulley 76 to move up and down, thereby driving the drive rod 73 to make vertical lifting and lowering movements along the through hole on the top wall of the correction box 71, converting the rotational motion of the motor into the linear motion of the drive rod 73, and realizing precise lifting stroke control. As a further implementation of this solution, the correction structure 77 includes a correction plate 771. The top end of the drive rod 73 is fixedly connected to the bottom center of the correction plate 771. Multiple threaded connecting posts 772 are fixedly connected to the correction plate 771. The multiple threaded connecting posts 772 and the correction holes 4 are evenly distributed in an array with equal number and corresponding positions. A correction pin 773 is provided above the threaded connecting posts 772. A threaded connecting groove 774 adapted to the threaded connecting posts 772 is opened at the bottom of the correction pin 773. The correction pin 773 is threadedly connected to the threaded connecting posts 772 through the threaded connecting groove 774. The correction pin 773 is adapted to the specifications of the correction hole 4. It should be noted that: the correction structure 77 at the top of the drive rod 73 acts directly on the foam. The correction plate 771 is fixed to the top of the drive rod 73. The number and position of the evenly arrayed threaded connecting posts 772 on the plate are equal to those of the correction holes 4 in the feeding guide plate 2. The correction pin 773 is detachably connected to the threaded connecting post 772 through the bottom threaded connecting groove 774. The specifications of the correction pin 773 are adapted to the correction hole 4, and the top height of the correction pin 773 in the initial state is flush with the correction hole 4 to avoid affecting the normal conveying of the foam. The detachable design allows for the replacement of correction pins 773 with different positions and diameters according to the preset hole positions or thickness requirements of different foams. When the drive rod 73 rises, the correction pin 773 passes through the correction hole 4 and the preset hole of the foam, and after insertion, it forms a "planar multi-point constraint", which can force the correction of the position error of the foam through mechanical hard constraint. When descending, the correction pin 773 retracts into the correction hole 4, without affecting the continued conveying of the foam.
[0018] Workflow: First, adjust the spacing of the side baffle assembly 3 according to the width specifications of the foam to be processed: pull out the positioning pin 34, slide the symmetrical side baffles 31 to the appropriate position so that the distance between the two side baffles 31 matches the width of the foam, and then insert the positioning pin 34 into the corresponding first positioning hole 32 and second positioning hole 33 to complete the fixing of the side baffles 31 and ensure that the foam will not deviate significantly during the conveying process. According to the specifications (diameter, number, distribution) of the preset holes on the foam, replace with a suitable correction pin 773: remove the original correction pin 773 from the threaded connecting post 772 by rotation, select a new correction pin 773 with a matching diameter, and tighten it with the threaded connecting post 772 using the threaded connecting groove 774 at the bottom to ensure that the correction pin 773 and the correction hole 4 on the feeding guide plate 2 are precisely matched. Meanwhile, the detection component 5 is ready: the detection camera 52 on the detection bracket 51 is powered on and started, the lens is aimed at the correction hole 4 area on the feeding guide plate 2, and the focus and parameter calibration (exposure time, white balance, etc.) are completed to ensure that the position image of the foam preset hole can be clearly captured. The external feeding mechanism feeds the foam onto the feeding guide plate 2. Under its own inertia and subsequent pushing force, the foam slides along the surface of the feeding guide plate 2. The two sides of the foam contact the side baffles 31 of the side baffle assembly 3. The side baffles 31 guide the foam to achieve initial positioning and control the offset within a small range. At the same time, the smooth surface (roughness Ra0.8) of the feeding guide plate 2 ensures that the foam slides smoothly and reduces the posture distortion caused by uneven friction. The foam continues to be conveyed to the area above the correction hole 4. At this time, the detection camera 52 of the detection component 5 takes pictures of the foam, and the image data is transmitted to the control system in real time. The system identifies the actual position of the preset hole on the foam through the image processing algorithm and compares it with the preset standard position. When the control system determines that the position of the preset hole of the foam has reached the correctable range, the correction component 7 is activated. When the drive motor 74 is powered on, it drives the snail cam 72 in the correction box 71 to rotate clockwise through the transmission shaft 75. The protruding part of the snail cam 72 gradually contacts the drive pulley 76 at the bottom of the drive rod 73. As the snail cam 72 rotates, the drive pulley 76 rolls upward along the surface of the snail cam 72, pushing the drive rod 73 to rise vertically. The correction plate 771 at the top of the drive rod 73 rises synchronously, driving the correction pins 773 on the multiple threaded connecting columns 772 to pass through the correction holes 4 on the feeding guide plate 2 and insert into the preset holes of the foam. The uniformly distributed correction pins 773 form multi-point constraints. During the insertion process, mechanical force is used to forcibly correct the offset and rotation deviation of the foam, and the positioning accuracy is corrected to a smaller range. After the correction is completed, the drive motor 74 continues to run, the snail cam 72 resets, the drive rod 73 descends under the action of gravity, and the correction pins 773 exit from the foam preset hole and correction hole 4 and return to the initial position below the feeding guide plate 2. After the foam has completed its positioning correction, it continues to be conveyed to the next processing station along the feeding guide plate 2 under the subsequent pushing force. The side baffle assembly 3 continuously maintains lateral guidance to prevent secondary deviation. The detection camera 52 monitors the presence and absence of foam on the feeding guide plate 2 in real time. When the next piece of foam is detected to enter the detection area, the above "detection-correction" process is repeated to achieve continuous automated feeding. If the detection camera 52 identifies that the foam preset hole deviation is too large or there is no preset hole (such as a defective foam), the control system immediately sends a signal to pause the operation of the correction assembly 7 and prompts manual intervention through audible and visual alarms to avoid material jamming or misoperation.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A foam feeding device for a foam assembly machine, comprising a frame (1), characterized in that: A feeding guide plate (2) is fixedly installed on the top of the frame (1). A side baffle assembly (3) is provided on the feeding guide plate (2). A correction hole (4) is opened in the middle of the feeding guide plate (2). A detection assembly (5) is provided above the feeding guide plate (2). A support platform (6) is fixedly installed on the frame (1). A correction assembly (7) is installed on the top of the support platform (6). The correction assembly (7) includes a correction box (71) fixedly connected to the top center of the support platform (6). The inner cavity of the correction box (71) is provided with a snail cam (72). A drive rod (73) is provided above the snail cam (72). The top of the drive rod (73) penetrates the top wall of the correction box (71). The top of the drive rod (73) extends above the correction box (71) and is located below the feeding guide plate (2). A correction structure (77) is provided above the drive rod (73).
2. The foam feeding device for a foam assembly machine according to claim 1, characterized in that: The side baffle assembly (3) includes a side baffle (31) arranged symmetrically in front and behind. The side baffle (31) is snapped onto the top of the feeding guide plate (2). The left and right ends of the side baffle (31) are symmetrically provided with first positioning holes (32). The left and right ends of the feeding guide plate (2) are symmetrically provided with multiple second positioning holes (33). The first positioning holes (32) and the second positioning holes (33) are provided with positioning pins (34) for positioning the side baffle (31) and the feeding guide plate (2).
3. The foam feeding device for a foam assembly machine according to claim 1, characterized in that: The detection component (5) includes a detection bracket (51) and a detection camera (52). The detection bracket (51) is arranged symmetrically in front and behind. One end of the detection bracket (51) is fixedly connected to the front and rear sides of the frame (1), and the other end of the detection bracket (51) is fixedly connected to the detection camera (52). The positions of the detection camera (52) and the correction hole (4) correspond.
4. The foam feeding device for a foam assembly machine according to claim 1, characterized in that: A drive motor (74) is installed at the center of the rear wall of the correction box (71). The output end of the drive motor (74) is fixedly connected to a transmission shaft (75). The front end of the transmission shaft (75) passes through the rear wall of the correction box (71) and extends into the inner cavity of the correction box (71). The front end of the transmission shaft (75) is fixedly connected to the center of the snail cam (72).
5. The foam feeding device for a foam assembly machine according to claim 4, characterized in that: The bottom rear side of the drive rod (73) is provided with a drive pulley (76), which is rotatably connected to the drive rod (73) through a connecting shaft, and the lower surface of the drive pulley (76) abuts against the upper surface of the snail cam (72).
6. The foam feeding device for a foam assembly machine according to claim 1, characterized in that: The correction structure (77) includes a correction plate (771), the top end of the drive rod (73) is fixedly connected to the bottom center of the correction plate (771), and a plurality of threaded connecting posts (772) are fixedly connected on the correction plate (771). The plurality of threaded connecting posts (772) and the correction holes (4) are evenly distributed in an array with equal number and corresponding positions.
7. The foam feeding device for a foam assembly machine according to claim 6, characterized in that: A correction pin (773) is provided above the threaded connecting post (772). A threaded connecting groove (774) adapted to the threaded connecting post (772) is provided at the bottom of the correction pin (773). The correction pin (773) is threadedly connected to the threaded connecting post (772) through the threaded connecting groove (774). The correction pin (773) is adapted to the specifications of the correction hole (4).