Automatic bottoming mechanism for mattress

Abstract

The utility model provides a kind of mattress automatic bottoming mechanism belongs to mechanical technical field.It solves the existing mattress automatic bottoming mechanism nail nail error-prone and other technical problems.This kind of mattress automatic bottoming mechanism, third force arm is fixedly connected with two guide rails and the rack between two guide rails, at least one fixed plate is slidably connected on guide rail, fixed plate is fixedly connected with driving motor, driving motor has gear shaft meshing transmission with rack, fixed plate is also fixedly connected with pedestal, pedestal is fixedly connected with nail gun and the guide material tube for providing nail tool for nail gun, pedestal is also movably connected with the tablet body on the side of nail gun located, sensor is also fixed on the front end upper side of tablet body, tablet body front end can be pressed on the mattress frame top wall.The utility model is more accurate to the control of nail gun position, reduces the error of nailing.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically referring to an automatic mattress base-forming mechanism. Background Technology

[0002] The mattress mesh is the core support structure of the mattress, directly determining the product's support, durability, and mechanical properties. The mesh distributes body pressure through an array of springs, maintaining even pressure on the mattress and preventing localized sagging. The mattress underlayment process is essentially the assembly of the mesh; the L-shaped steel frame is riveted to the edge-reinforcing springs using a high-speed nailing machine, and the springs are connected in series using a spiral spring-threading machine to form an elastic whole. An automatic glue applicator applies glue to the seams of the mattress pockets, bonding it into shape.

[0003] Currently, a spring mattress frame fastening assembly, such as the one disclosed in CN220162718U, features an automated assembly with four fastening devices arranged in a square. This assembly is used for the automatic fastening of the spring mattress frame to the hard cotton felt layer, with the four devices moving horizontally synchronously along the square edge of the mattress. However, its positioning seat uses a double-sliding structure with the main body and seat aligned in the same direction, along with a four-bar linkage mechanism. Combined with springs and screws for buffer positioning, the multi-stage transmission leads to increased cumulative errors and inaccurate positioning. Furthermore, the four devices must move horizontally and fasten in a strictly synchronized manner; a malfunction in a single device can cause misalignment of the square fastening trajectory. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic mattress base mechanism.

[0005] The purpose of this utility model can be achieved through the following technical solution: an automatic mattress base-forming mechanism, including a base, a first force seat rotatably connected to the base, a first force arm rotatably connected to the first force seat, a second force seat fixedly connected to the other end of the first force arm, a second force arm rotatably connected to the second force seat, a third force seat fixedly connected to one end of the second force arm, a third force arm connected to the third force seat, two guide rails and a rack located between the two guide rails fixedly connected to the third force arm, at least one fixed plate slidably connected to the guide rails, a drive motor fixedly connected to the fixed plate, the drive motor having a gear shaft meshing with the rack, a base fixedly connected to the fixed plate, a nail gun and a guide cylinder for providing nails to the nail gun fixedly connected to the base, a pressure plate body movably connected to the side of the nail gun on the base, a sensor fixedly above the front end of the pressure plate body, and the front end of the pressure plate body can press against the top wall of the mattress frame.

[0006] In the above-mentioned automatic mattress base mechanism, a linear rail and a fixed seat located at one end of the linear rail are fixedly connected to the base. A pressure plate seat is slidably connected to the linear rail. A pressure plate body is oscillatingly connected to the pressure plate seat. A spring is fixedly connected between the pressure plate seat and the fixed seat.

[0007] In the above-mentioned automatic mattress base mechanism, a strip groove for accommodating the pressing body is horizontally opened on the pressing seat. One end of the pressing seat and the pressing body are fixed by a pin. The other end of the pressing body passes through the strip groove and swings up and down in the strip groove by means of the pin. A sensor is fixedly connected to the pressing seat. The sensor is located above the pressing body that extends out of the strip groove.

[0008] In the above-mentioned automatic mattress base-forming mechanism, the base includes a connecting bracket and a feeding bracket and a positioning bracket that are fixed to the connecting bracket respectively. The positioning bracket and the feeding bracket are located on the front and rear sides of the third lever arm respectively. The guide cylinder is fixed on the connecting bracket and located above the feeding bracket. The nail gun is fixed on the positioning bracket. A guide body is fixedly connected between the nail gun and the guide cylinder.

[0009] In the aforementioned automatic mattress base-forming mechanism, the feeding bracket includes a tapered guide port, with one end of the guide body located at the end of the guide port. A guide cylinder is connected to the guide body via the tapered guide port, and the guide body is secured to the nail gun with an outer sheath. This design facilitates smooth and stable nail feeding from the guide cylinder to the nail gun inlet, reducing the risk of nail jamming and ensuring reliable nail supply.

[0010] In the above-mentioned automatic mattress base-forming mechanism, the guide body is covered with a protective shell, which is fixed to the outside of the nail gun.

[0011] In the aforementioned automatic mattress base-forming mechanism, the connecting bracket is triangular in shape. The first corner of the connecting bracket is fixedly connected to the fixing plate by bolts. The feeding bracket is fixedly connected to one side of the connecting bracket. The positioning bracket is fixedly connected to the second corner of the connecting bracket. The guide cylinder is fixed to the third corner of the connecting bracket by a fastener and is located above the feeding bracket. This triangular connecting bracket provides stable support for the nail gun unit, allowing for more stable nailing and hammering.

[0012] In the aforementioned automatic mattress base-forming mechanism, two to four fixed plates are slidably connected to the guide rail. Each fixed plate is fixedly connected to a drive motor, which has a gear shaft that meshes with a rack and pinion. Each fixed plate is fixedly connected to a base, and each base is fixedly connected to a nail gun and a guide cylinder that provides nails to the nail gun. Each base has a pressure plate body movably connected to the side of the nail gun. A sensor is fixed above the front end of each pressure plate body, and the front end of the pressure plate body can press against the top wall of the mattress frame.

[0013] In the aforementioned automatic mattress base-forming mechanism, the third lever arm is rectangular in shape, and two guide rails and a rack are horizontally arranged along the length of the third lever arm.

[0014] Compared with existing technologies, the technical advantages of this utility model are as follows: 1. The overall positioning of the nail gun is achieved through a multi-joint robotic arm structure composed of a first force seat, a first force arm, a second force seat, a second force arm, a third force seat, and a third force arm. This structure offers high rigidity and controllability, effectively reducing cumulative errors caused by transmission links and achieving more precise control over the nail gun's position. 2. Core positioning is accomplished by the robotic arm. The movement of the nail gun on the third force arm utilizes a linear drive system consisting of guide rails, racks, gear shafts, and a drive motor. This results in a simple transmission structure with good rigidity, smooth transmission, high precision, and strong resistance to contamination. It significantly simplifies the local transmission structure, improves overall rigidity and reliability, and reduces the risk of failure and maintenance requirements caused by complex mechanisms. 3. Installing 2-4 nail gun units on the third force arm allows them to work on the mattress simultaneously, accelerating the nailing speed. Attached Figure Description

[0015] Figure 1 This is a perspective view of the utility model.

[0016] Figure 2 This is a perspective view of the third lever arm and nail gun unit of this utility model.

[0017] Figure 3 This is a perspective view of a nail gun unit of this utility model.

[0018] Part Number Markings: 1. Base; 2. First Force Seat; 3. First Force Arm; 4. Second Force Seat; 5. Second Force Arm; 6. Third Force Seat; 7. Third Force Arm; 8. Guide Rail; 9. Rack; 10. Fixing Plate; 11. Drive Motor; 12. Gear Shaft; 13. Base; 131. Connecting Bracket; 132. Feeding Bracket; 1321. Guide Port; 133. Positioning Bracket; 14. Nail Gun; 15. Guide Cylinder; 16. Tableting Body; 17. Sensor; 18. Linear Rail; 19. Fixing Seat; 20. Tableting Seat; 201. Strip Groove; 21. Spring; 22. Pin; 23. Guide Body; 24. Sheath; 25. Fixing Component; 26. Large Slider. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] It should be noted that the descriptions of "up", "down", "left", "right", "top", "bottom", etc. in this utility model are defined based on the orientation or positional relationship shown in the accompanying drawings. They 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 must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] according to Figures 1 to 3 As shown, an automatic mattress underlayment mechanism includes a base 1, a robotic arm, and 14 nail gun units. The control system calculates the precise coordinate sequence of nailing points based on input information such as mattress dimensions, frame structure, and nailing point location diagram. The system plans the path points that the robotic arm's end effector, the third lever arm 7, needs to reach, as well as the number and position of the 14 nail gun units to perform nailing operations at each path point. The base 1 is driven by a main motor to rotate a first support 2 around the base 1. The first support 2 is driven by a first motor to rotate a first lever arm 3 relative to the first support 2 in a pitching motion. The other end of the first lever arm 3 is fixedly connected to a second support 4. The second support 4 is driven by a second motor to rotate a second lever arm 5 in a small circumferential range. One end of the second lever arm 5 is fixedly connected to a third support 6. The third support 7 is connected to the third support 6 and is driven by a third motor to make small up-and-down adjustments relative to the third support 6. The motors driving each lever arm move synchronously, allowing the third lever arm 7 to move quickly and smoothly to a position above or to the side of the target nailing area.

[0022] The nail gun unit is precisely positioned as follows: two guide rails 8 and a rack 9 located between the two guide rails 8 are fixedly connected to the third lever arm 7. At least one fixed plate 10 is slidably connected to the guide rail 8. A large slider 26 is fixedly connected to the fixed plate 10. The large slider 26 and the guide rail 8 are slidably engaged. A drive motor 11 is fixedly connected to the fixed plate 10. The drive motor 11 has a gear shaft 12 that meshes with the rack 9 for transmission. The gear shaft 12 and the rack 9 work together to drive the fixed plate 10 to slide along the guide rail 8. A base 13 is also fixedly connected to the fixed plate 10. A nail gun 14 and a guide cylinder 15 that provides nails to the nail gun 14 are fixedly connected to the base 13. A pressure plate body 16 is also movably connected to the base 13 on the side of the nail gun 14. A sensor 17 is also fixed above the front end of the pressure plate body 16. The front end of the pressure plate body 16 can press against the top wall of the mattress frame. After the third lever arm 7 is in position, the drive motor 11 of the nail gun 14 unit starts, driving its gear shaft 12 to rotate. The gear shaft 12 meshes with the rack 9 fixed on the third lever arm 7. When the nail gun 14 unit moves near the target point, it aligns the front end of the pressing body 16 with the mattress frame and prepares to press it against the top wall of the mattress frame. A linear guide 18 and a fixed seat 19 located at one end of the linear guide 18 are fixedly connected to the base 13. A pressing seat 20 is slidably connected to the linear guide 18. A small slider is fixed on the pressing seat 20. The small slider slides in cooperation with the linear guide 18. The pressing body 16 is oscillatingly connected to the pressing seat 20. A spring 21 is fixedly connected between the pressing seat 20 and the fixed seat 19. The spring 21 makes the front end of the pressing body 16 press steadily against the top wall of the mattress frame and aligned with the nail gun 14. The sensor 17 fixed on the pressing seat 20 detects that the pressing body 16 has been pressed into place, and the sensor 17 signal is fed back to the control system. A strip groove 201 for accommodating the tablet body 16 is horizontally opened through the tablet press 20. One end of the tablet press 20 and the tablet body 16 are fixed by a pin 22. The other end of the tablet body 16 passes through the strip groove 201 and swings up and down in the strip groove 201 by means of the pin 22. A sensor 17 is fixedly connected to the tablet press 20. The sensor 17 is located above the tablet body 16 that extends out of the strip groove 201.

[0023] The base 13 includes a connecting bracket 131 and a feeding bracket 132 and a positioning bracket 133, which are respectively fixed to the connecting bracket 131. The connecting bracket 131 is triangular in shape. The positioning bracket 133 and the feeding bracket 132 are located on the front and rear sides of the third lever arm 7, respectively. The first corner of the connecting bracket 131 is fixedly connected to the fixing plate 10 by bolts. The feeding bracket 132 is fixedly connected to one side of the connecting bracket 131. The positioning bracket 133 is fixedly connected to the second corner of the connecting bracket 131. The guide cylinder 15 is fixed to the third corner of the connecting bracket by a fastener 25 and is located above the feeding bracket 132. The nail gun 14 is fixed to the positioning bracket 133. A guide body 23 is fixedly connected between the nail gun 14 and the guide cylinder 15. The triangular connecting bracket 131 can stably support the nail gun unit, allowing the nail gun 14 to nail more stably.

[0024] The feeding bracket 132 includes a tapered feed port 1321, with one end of the feed body 23 located at the end of the feed port 1321. The feed cylinder 15 is connected to the feed body 23 via the tapered feed port 1321, and the feed body 23 is covered by a protective sleeve 24 and fixed to the nail gun 14. This design helps to smoothly and stably feed nails from the feed cylinder 15 to the inlet of the nail gun 14, reducing the risk of nail jamming and ensuring reliable nail supply. The feed body 23 is covered by a protective sleeve 24, which is fixed to the outside of the nail gun 14. When the control system receives the compaction signal from the sensor 17 and determines that the current position is accurate, the control system issues a command to trigger the nail gun 14. The nail gun 14 picks up the nail from the feed cylinder 15 through the feed body 23 and drives the nail at high speed into the connection between the mattress frame and the edge reinforcement spring 21. The feed body 23 is protected by the protective sleeve 24 to ensure smooth nail feeding.

[0025] Two to four fixed plates 10 are slidably connected to the guide rail 8. Each fixed plate 10 is fixedly connected to a drive motor 11, which has a gear shaft 12 that meshes with a rack 9. Each fixed plate 10 is fixedly connected to a base 13, and each base 13 is fixedly connected to a nail gun 14 and a guide cylinder 15 that provides nails to the nail gun 14. A pressure plate 16 is movably connected to the side of each base 13, located on the nail gun 14. A sensor 17 is fixed above the front end of each pressure plate 16, and the front end of the pressure plate 16 can press against the top wall of the mattress frame. The third lever arm 7 is rectangular in shape, and the two guide rails 8 and the rack 9 are horizontally arranged along the length of the third lever arm 7. Two to four nail gun units 14 are installed on the third lever arm 7, which can work on the mattress simultaneously, speeding up the nailing process.

[0026] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection defined by the claims of the present utility model.

Claims

1. An automatic mattress base-forming mechanism, comprising a base (1), a first force seat (2) rotatably connected to the base (1), a first force arm (3) rotatably connected to the first force seat (2), a second force seat (4) fixedly connected to the other end of the first force arm (3), and a second force arm (5) rotatably connected to the second force seat (4), characterized in that: One end of the second lever arm (5) is fixedly connected to the third force seat (6). The third force seat (6) is connected to the third lever arm (7). The third lever arm (7) is fixedly connected to two guide rails (8) and a rack (9) located between the two guide rails (8). At least one fixing plate (10) is slidably connected to the guide rails (8). A drive motor (11) is fixedly connected to the fixing plate (10). The drive motor (11) has a toothed ... The gear shaft (12) of the meshing transmission is fixedly connected to the fixed plate (10), and a base (13) is fixedly connected to the base (13). A nail gun (14) and a guide cylinder (15) for providing nails to the nail gun (14) are fixedly connected to the base (13). A pressing body (16) is also movably connected to the base (13) on the side of the nail gun (14). A sensor (17) is fixed above the front end of the pressing body (16). The front end of the pressing body (16) can press against the top wall of the mattress frame.

2. The automatic mattress base-forming mechanism according to claim 1, characterized in that: A linear rail (18) and a fixed seat (19) located at one end of the linear rail (18) are fixedly connected to the base (13). A tablet press (20) is slidably connected to the linear rail (18). A tablet press (16) is oscillatingly connected to the tablet press (20). A spring (21) is fixedly connected between the tablet press (20) and the fixed seat (19).

3. The automatic mattress base-forming mechanism according to claim 2, characterized in that: The tablet press (20) has a horizontally penetrating slot (201) for accommodating the tablet body (16). One end of the tablet press (20) and the tablet body (16) are fixed by a pin (22). The other end of the tablet body (16) passes through the slot (201) and swings up and down in the slot (201) by the pin (22). A sensor (17) is fixedly connected to the tablet press (20). The sensor (17) is located above the tablet body (16) extending out of the slot (201).

4. An automatic mattress base-forming mechanism according to claim 1, 2, or 3, characterized in that: The base (13) includes a connecting bracket (131) and a feeding bracket (132) and a positioning bracket (133) fixed to the connecting bracket (131). The positioning bracket (133) and the feeding bracket (132) are located on the front and rear sides of the third lever arm (7), respectively. The guide cylinder (15) is fixed on the connecting frame and located above the feeding bracket (132). The nail gun (14) is fixed on the positioning bracket (133). A guide body (23) is fixedly connected between the nail gun (14) and the guide cylinder (15).

5. The automatic mattress base-forming mechanism according to claim 4, characterized in that: The feeding bracket (132) includes a tapered guide port (1321), and one end of the guide body (23) is located at the end of the guide port (1321).

6. The automatic mattress base-forming mechanism according to claim 5, characterized in that: The feed guide (23) is covered with a protective shell (24), which is fixed to the outside of the nail gun (14).

7. The automatic mattress base-forming mechanism according to claim 4, characterized in that: The connecting bracket (131) is triangular in shape. The first corner of the connecting bracket (131) is fixedly connected to the fixing plate (10) by bolts. The feeding bracket (132) is fixedly connected to one side of the connecting bracket (131). The positioning bracket (133) is fixedly connected to the second corner of the connecting bracket (131). The guide cylinder (15) is fixed to the third corner of the connecting bracket by a fastener (25) and is located above the feeding bracket (132).

8. The automatic mattress base-forming mechanism according to claim 1, characterized in that: Two to four fixed plates (10) are slidably connected on the guide rail (8). Each fixed plate (10) is fixedly connected to a drive motor (11). The drive motor (11) has a gear shaft (12) that meshes with the rack (9). Each fixed plate (10) is fixedly connected to a base (13). Each base (13) is fixedly connected to a nail gun (14) and a guide tube (15) that provides nails to the nail gun (14). Each base (13) is movably connected to a pressing body (16) located on the side of the nail gun (14). A sensor (17) is fixed above the front end of the pressing body (16). The front end of the pressing body (16) can press against the top wall of the mattress frame.

9. The automatic mattress base-forming mechanism according to claim 1, characterized in that: The third lever arm (7) is rectangular in shape, and two guide rails (8) and a rack (9) are horizontally arranged along the length of the third lever arm (7).

Images