Tension spring and welding mechanism of high-pressure bagged spring

Abstract

The utility model relates to a tension spring and welding mechanism for a high-pressure bagged spring, which comprises a base, a movable welding mechanism is arranged on the base, one side of the welding mechanism is in transmission connection with a motor component for driving the welding mechanism to move, and a movable clamping spring component and a fixed clamping spring component are respectively arranged at two ends of one side of the top of the welding mechanism; according to the utility model, the fixed clamping spring assembly and the movable clamping spring assembly alternately limit and clamp the bagged spring, so that the high-pressure spring is prevented from bending and deforming in a cloth bag; and two groups of adjacent bagged springs are pulled apart by a certain distance through the movable spring clamping assembly, so that enough vacant welding wide welding seams are reserved between the non-woven fabric between the two groups of adjacent bagged springs, and subsequent cutting is facilitated.

Description

Technical Field

[0001] This utility model relates to a tension spring and welding mechanism for high-pressure bag springs, belonging to the technical field of bag spring processing equipment. Background Technology

[0002] Pocket springs for mattresses consist of springs encased in non-woven fabric bags. In production, springs processed by a spring forming device are compressed and transported to a spring bagging device via a compression spring mechanism and a spring feeding mechanism. The springs are then wrapped in non-woven fabric by the bagging device, and a bag opening is welded after each spring is wrapped. When the pocket springs are high-compression springs, the springs are highly compressed and have significant elasticity, making them prone to bending and deformation inside the bag. This prevents them from being placed upright and affects the bagging quality. Existing technology, patent application number CN2023229840026, discloses a push spring and welding device for high-compression pocket springs. The push spring mechanism pushes the pocket springs to the welding mechanism, which then welds the bag opening. During feeding, the push spring rods in the push spring mechanism form a limiting zone to restrict the springs inside the bag, preventing bending and deformation and improving bagging quality.

[0003] The existing technology has the following drawbacks: 1. When pushing the spring, the upper push spring rod 104 and the lower push spring rod 105 need to pass between the lower die 202 and the upper die 203. When the lower die 202 and the upper die 203 are closed and welded, they are prone to hitting the upper push spring rod 104 and the lower push spring rod 105, causing damage and affecting the normal operation of the equipment; 2. In order to facilitate the cutting of two sets of adjacent bag springs, it is sometimes necessary to weld the weld seam relatively wide so that it can be cut in the middle of the wide weld seam. However, the spring pushing mechanism of the existing technology cannot widen the non-woven fabric between two sets of adjacent bag springs, and the non-woven fabric does not have enough space to weld a relatively wide weld seam.

[0004] Therefore, the research objective of this utility model is to provide a novel tension spring and welding mechanism for high-pressure bag springs. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this utility model provides a tension spring and welding mechanism for high-pressure bag springs. The fixed clamping spring assembly and the movable clamping spring assembly alternately limit and clamp the bag springs to prevent the high-pressure springs from bending and deforming inside the bag. Furthermore, the movable clamping spring assembly pulls two adjacent sets of bag springs apart by a certain distance, leaving sufficient space in the nonwoven fabric between the two sets of adjacent bag springs to weld a wide weld, which facilitates subsequent cutting.

[0006] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows:

[0007] A tension spring and welding mechanism for a high-pressure bag spring, comprising a base, a movable welding mechanism on the base, a motor assembly for driving the welding mechanism to move connected to one side of the welding mechanism, and a movable clamping spring assembly and a fixed clamping spring assembly respectively provided at both ends of the top side.

[0008] The welding mechanism includes a fixed plate, an upper connecting plate, a lower connecting plate, a lower die mounting plate, an upper die mounting plate, a turntable, and two sets of side plates. The fixed plate has vertically upward guide posts at both ends via linear bearings. The upper connecting plate is mounted on the guide posts via linear bearings and is positioned above the fixed plate. The lower connecting plate is mounted on the guide posts via linear bearings and is positioned below the fixed plate. The lower die mounting plate is mounted on the guide posts via linear bearings and is positioned above the upper connecting plate. The lower die is mounted on the top of the lower die mounting plate. The upper die is mounted on... The mounting plate is fixedly installed at the top of the guide post. The bottom of the upper die mounting plate is provided with an upper die that matches the lower die. The turntable is rotatably mounted on the fixed plate. One end of the turntable is connected to a reduction motor that drives the upper and lower dies to open or close. The top and bottom ends of the turntable are respectively connected to the upper connecting plate and the lower connecting plate via a connecting rod. Two sets of side plates are fixedly installed on the guide post and are located on the outside of the lower and upper dies. The two sets of side plates are fixedly connected by a connecting plate. The outside of the two sets of side plates are also provided with a sliding rod via a linear bearing.

[0009] The motor assembly includes a movable motor, the output shaft of which is connected to a first connecting rod and a second connecting rod via two sets of gears. The other end of the first connecting rod is hinged to the fixed plate, and the other end of the second connecting rod is hinged to the connecting plate.

[0010] The movable clamping spring assembly includes a sliding plate, a movable upper clamping spring rod, a movable lower clamping spring rod, a first transmission gear, a second transmission gear, an opening and closing rack, and a cylinder. The sliding plate is mounted on the slide rod of one of the side plates via a linear bearing. The sliding plate is provided with a first slide rail and a second slide rail via a slider. A first rack is fixedly mounted on the first slide rail, and a second rack is fixedly mounted on the second slide rail. One end of the movable upper clamping spring rod is fixedly mounted on the first slide rail, and one end of the movable lower clamping spring rod is fixedly mounted on the second slide rail. The first transmission gear is rotatably mounted on the sliding plate and is drivenly connected to the first rack and the second rack. The second transmission gear is rotatably mounted on the upper connecting plate and is hinged to the bottom end of the second slide rail via a connecting rod. The opening and closing rack is fixedly mounted on the fixed plate and is drivenly connected to the second transmission gear. The cylinder is fixedly mounted on the sliding plate, and its piston rod is fixedly connected to a group of side plates adjacent to it.

[0011] The fixed spring clamping assembly includes a mounting plate and a spring clamping motor. The mounting plate is provided with a toothed first slide and a second slide via a slide rail slider. The first slide is provided with a fixed upper spring clamping rod, and the second slide is provided with a fixed lower spring clamping rod. The spring clamping motor is rotatably connected to the mounting plate and is connected to the toothed transmission of the first slide and the second slide via a gear set to drive the fixed upper spring clamping rod and the fixed lower spring clamping rod to open or close.

[0012] Furthermore, the movable clamping spring assembly and the fixed clamping spring assembly are disposed opposite to each other on the side of the upper and lower die close to the movable motor.

[0013] Furthermore, two sets of movable upper clamping spring rods and two sets of movable lower clamping spring rods are provided, and the two sets of movable upper clamping spring rods and the two sets of movable lower clamping spring rods form a limiting range for limiting and clamping the bag spring.

[0014] Furthermore, two sets of fixed upper clamping spring rods and two sets of fixed lower clamping spring rods are provided, and the two sets of fixed upper clamping spring rods and the two sets of fixed lower clamping spring rods form a limiting range for limiting and clamping the bag spring.

[0015] Furthermore, a pad is provided at the end of the slide bar away from the fixed spring assembly and the movable spring assembly.

[0016] Furthermore, the mounting plate is integrally provided with two sets of sliding grooves arranged in a V-shape, and the first slide block and the second slide block are respectively slidably disposed in the two sets of sliding grooves.

[0017] The beneficial effects of this utility model are: 1. The fixed clamping spring assembly and the movable clamping spring assembly alternately limit and clamp the bag spring, preventing the high-pressure spring from bending and deforming inside the bag; 2. The movable clamping spring assembly pulls two adjacent sets of bag springs apart by a certain distance, leaving enough space in the non-woven fabric between the two sets of adjacent bag springs to weld a wide weld seam; 3. The movable motor drives the welding mechanism to move through two sets of connecting rods, ensuring the smooth movement of the welding machine mechanism without tilting or swaying; 4. During welding, the upper and lower die-cutting molds will not collide with the clamping spring rods, resulting in a low failure rate. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0019] Figure 2 This is the second structural schematic diagram of this utility model.

[0020] Figure 3 This is a side view of the present invention.

[0021] Figure 4This is a schematic diagram of the welding mechanism of this utility model.

[0022] Figure 5 This is a partial structural diagram of the welding mechanism of this utility model.

[0023] Figure 6 This is a structural schematic diagram of the motor assembly of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the movable clamping spring assembly of this utility model.

[0025] Figure 8 This is a partial structural diagram of the movable clamping spring assembly of this utility model.

[0026] Figure 9 This is a structural schematic diagram of the fixed clamping spring assembly of this utility model.

[0027] Figure 10 This is a structural schematic diagram of the mounting plate of this utility model.

[0028] The components include: base 10, welding mechanism 20, motor assembly 30, movable clamping spring assembly 40, fixed clamping spring assembly 50, fixing plate 201, upper connecting plate 202, lower connecting plate 203, lower die mounting plate 204, upper die mounting plate 205, turntable 206, side plate 207, guide post 208, lower die 209, upper die 210, reduction motor 211, connecting plate 212, slide rod 213, pad plate 214, movable motor 301, first connecting rod 302, and the... Two-link rod 303, sliding plate 401, moving upper clamping spring rod 402, moving lower clamping spring rod 403, first transmission gear 404, second transmission gear 405, opening and closing rack 406, cylinder 407, first slide rail 408, second slide rail 409, first rack 410, second rack 411, mounting plate 501, clamping spring motor 502, first slide block 503, second slide block 504, fixed upper clamping spring rod 505, fixed lower clamping spring rod 506, slide groove 501a. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-10 Further analysis of this utility model is then conducted.

[0030] like Figure 1-10 As shown, a high-pressure bag spring tension spring and welding mechanism includes a base 10, a movable welding mechanism 20 is provided on the base 10, a motor assembly 30 for driving the welding mechanism 20 is connected to one side of the welding mechanism 20, and a movable clamping spring assembly 40 and a fixed clamping spring assembly 50 are respectively provided at both ends of the top side.

[0031] The welding mechanism 20 includes a fixed plate 201, an upper connecting plate 202, a lower connecting plate 203, a lower die mounting plate 204, an upper die mounting plate 205, a turntable 206, and two sets of side plates 207. The fixed plate 201 has vertically upward guide posts 208 at both ends via linear bearings. The fixed plate 201 is mounted on the base 10 via sliding rails. The upper connecting plate 202 is mounted on the guide posts 208 via linear bearings and is positioned above the fixed plate 201. The lower connecting plate 203... The connecting plate 203 is mounted on the guide post 208 via a linear bearing and is located below the fixing plate 201. The lower die mounting plate 204 is mounted on the guide post 208 via a linear bearing and is located above the upper connecting plate 202. The top of the lower die mounting plate 204 is provided with a lower die 209, which is an ultrasonic welding die and is connected to an ultrasonic transducer. The upper die mounting plate 205 is fixedly mounted on the top of the guide post 208, and the bottom of the upper die mounting plate 205... The upper die 210 is provided to match the lower die 209. The turntable 206 is rotatably mounted on the fixed plate 201, and one end of the turntable 206 is connected to a geared motor 211 that drives the upper die 210 and the lower die 209 to open or close. The top and bottom ends of the turntable 206 are respectively connected to the upper connecting plate 202 and the lower connecting plate 203 via a connecting rod. Two sets of side plates 207 are fixed on the guide post 208 and are provided on the outer side of the lower die 209 and the upper die 210. On the side, the two sets of side plates 207 are fixedly connected by a connecting plate 212. The outer sides of the two sets of side plates 207 are also provided with sliding rods 213 via linear bearings. During welding, the turntable 206 is driven to rotate clockwise by the reduction motor 211, which drives the upper connecting plate 202 to rise through the connecting rod, and at the same time drives the lower connecting plate 203 to fall, causing the lower die mounting plate 204 to rise and the upper die mounting plate 205 to fall. The lower die 209 and the upper die 210 are closed, and the non-woven fabric between the two sets of bag springs is welded.

[0032] The motor assembly 30 includes a movable motor 301. The output shaft of the movable motor 301 is connected to a first connecting rod 302 and a second connecting rod 303 via two sets of gears. The other end of the first connecting rod 302 is hinged to the fixed plate 201, and the other end of the second connecting rod 303 is hinged to the connecting plate 212. The movable motor 301 drives the two sets of gears to rotate, thereby moving the first connecting rod 302 and the second connecting rod 303, which in turn drives the welding mechanism 20 to move via the fixed plate 201 and the connecting plate 212.

[0033] The movable spring clamping assembly 40 includes a sliding plate 401, an upper movable spring clamping rod 402, a lower movable spring clamping rod 403, a first transmission gear 404, a second transmission gear 405, an opening and closing rack 406, and a cylinder 407. The sliding plate 401 is mounted on the slide rods 213 of one set of side plates 207 via linear bearings. A first slide rail 408 and a second slide rail 409 are mounted on the sliding plate 401 via sliders. A first rack 410 is fixedly mounted on the first slide rail 408, and a second rack 411 is fixedly mounted on the second slide rail 409. One end of the upper movable spring clamping rod 402 is fixedly mounted on the first slide rail 408, and one end of the lower movable spring clamping rod 403 is fixedly mounted on the second slide rail 409. The first transmission gear 404 is rotatably mounted on the sliding plate 401 and transmits power with the first rack 410 and the second rack 411. The second transmission gear 405 is rotatably mounted on the upper connecting plate 202 and is hinged to the bottom end of the second slide rail 409 via a connecting rod. The opening and closing rack 406 is fixedly mounted on the fixed plate 201 and is connected to the second transmission gear 405. The cylinder 407 is fixedly mounted on the sliding plate 401, and its piston rod is fixedly connected to a set of side plates 207 adjacent to it. When the upper connecting plate 202 rises, it drives the second transmission gear 405 to rise and pushes the second slide rail 409 to rise via a connecting rod, causing the lower clamping spring rod 403 to rise. At the same time as the second slide rail 409 rises, it drives the first transmission gear 404 to rotate counterclockwise, causing the first slide rail 408 to fall relatively, causing the upper clamping spring rod 402 to fall. That is, the upper clamping spring rod 402 and the lower clamping spring rod 403 close to limit and clamp the bag spring.

[0034] The fixed spring clamping assembly 50 includes a mounting plate 501 and a spring clamping motor 502. The mounting plate 501 is provided with a toothed first slide block 503 and a second slide block 504 via a slide rail slider. The first slide block 503 is provided with a fixed upper spring clamping rod 505, and the second slide block 504 is provided with a fixed lower spring clamping rod 506. The spring clamping motor 502 is rotatably connected to the mounting plate 501 and is connected to the toothed transmission of the first slide block 503 and the second slide block 504 through a gear set to drive the fixed upper spring clamping rod 505 and the fixed lower spring clamping rod 506 to open or close.

[0035] In this embodiment, preferably, the movable spring clamping assembly 40 and the fixed spring clamping assembly 50 are arranged opposite to each other on the side of the upper die 210 and the lower die 209 near the movable motor 301. First, the fixed spring clamping assembly 50 limits and clamps the bag spring, and then the movable spring clamping assembly 40 takes over from the fixed spring clamping assembly 50 to limit and clamp the bag spring. After welding is completed, the bag spring is pulled to move one station towards the welding mechanism 20.

[0036] In this embodiment, preferably, two sets of movable upper clamping spring rods 402 and two sets of movable lower clamping spring rods 403 are provided, and the two sets of movable upper clamping spring rods 402 and the two sets of movable lower clamping spring rods 403 form a limiting range for limiting and clamping the bag spring.

[0037] In this embodiment, preferably, two sets of fixed upper clamping spring rods 505 and two sets of fixed lower clamping spring rods 506 are provided, and the two sets of fixed upper clamping spring rods 505 and the two sets of fixed lower clamping spring rods 506 form a limiting range for limiting and clamping the bag spring.

[0038] In this embodiment, preferably, a pad 214 is provided at the end of the slide bar 213 away from the fixed spring assembly 50 and the movable spring assembly 40. The welding mechanism 20 is installed on the bagging machine of the bag spring through the pad 214 and the base 10, and the fixed spring assembly 50 is installed on the bagging machine of the bag spring through the mounting plate 501.

[0039] In this embodiment, preferably, the mounting plate 501 is integrally provided with two sets of sliding grooves 501a arranged in a V-shape. The first slide block 503 and the second slide block 504 are respectively slidably disposed in the two sets of sliding grooves 501a. When the first slide block 503 and the second slide block 504 move to one end of the narrow opening of the sliding groove 501a, the upper clamping spring rod 505 and the lower clamping spring rod 506 are closed, and vice versa.

[0040] The working principle of this utility model is as follows: The bag springs are compressed by the compression conveying mechanism and then conveyed to the fixed spring clamping assembly 50. The fixed upper spring clamping rod 505 and the fixed lower spring clamping rod 506 close to limit and clamp the bag springs. Then, the moving motor 301 drives the welding mechanism 20 and the moving spring clamping assembly 40 to move one position towards the fixed spring clamping assembly 50. During the movement, the upper die 210 and the lower die 209, as well as the moving upper spring clamping rod 402 and the moving lower spring clamping rod 403, are all in the open state. When the moving spring clamping assembly 40 and the fixed spring clamping assembly 50 overlap, the reduction motor 211 drives the lower die 209 and the upper die 210 to close, welding the non-woven fabric between the two sets of bag springs. Simultaneously with the closure of the lower die 209 and the upper die 210, during the upward movement of the upper connecting plate 202, the second transmission gear 405 rises, and through the connecting rod, the second slide rail 409 rises, causing the moving lower spring clamping rod 403 to rise. As the mechanism rises, the first transmission gear 404 drives the first slide rail 408 to descend, causing the upper movable spring clamping rod 402 to descend and close with the lower movable spring clamping rod 403, replacing the fixed upper spring clamping rod 505 and the fixed lower spring clamping rod 506. This clamps the bag springs within the limiting range of the fixed upper spring clamping rod 505 and the fixed lower spring clamping rod 506. After welding is completed, the moving motor 301 drives the welding mechanism 20 to move one position away from the fixed spring clamping assembly 50. The moving spring clamping assembly 40 then moves the bag springs within the limiting range of the upper movable spring clamping rod 402 and the lower movable spring clamping rod 403 one position. Simultaneously, the next set of bag springs enters the fixed spring clamping assembly 50, and the fixed upper spring clamping rod 505 and the fixed lower spring clamping rod 506 close to clamp and limit them. This process continues, with the moving spring clamping assembly 40 continuously pushing the bag springs in the fixed spring clamping assembly 50 towards the welding mechanism 20, achieving uninterrupted welding between the bag springs.

[0041] When a wide weld is required between two sets of pocket springs, the pocket springs are first pushed towards the welding mechanism 20 by the movable spring clamping assembly 40 through the above steps. Then, the cylinder 407 pushes the movable spring clamping assembly 40 to move a certain distance towards the fixed spring clamping assembly 50, pushing the pocket springs within the limit range of the movable upper spring clamping rod 402 and the movable lower spring clamping rod 403 to retreat a certain distance, leaving a certain gap in the non-woven fabric between the two sets of pocket springs for welding the wide weld.

[0042] The technical solutions provided in this application have been described in detail above. The embodiments used in this document illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A tension spring and welding mechanism for a high-pressure bagged spring, characterized in that: Includes a base, on which a movable welding mechanism is provided. One side of the welding mechanism is connected to a motor assembly that drives its movement, and the two ends of the top side are respectively provided with a movable clamping spring assembly and a fixed clamping spring assembly. The welding mechanism includes a fixed plate, an upper connecting plate, a lower connecting plate, a lower die mounting plate, an upper die mounting plate, a turntable, and two sets of side plates. The fixed plate has vertically upward guide posts at both ends via linear bearings. The upper connecting plate is mounted on the guide posts via linear bearings and is positioned above the fixed plate. The lower connecting plate is mounted on the guide posts via linear bearings and is positioned below the fixed plate. The lower die mounting plate is mounted on the guide posts via linear bearings and is positioned above the upper connecting plate. The lower die is mounted on the top of the lower die mounting plate. The upper die is mounted on... The mounting plate is fixedly installed at the top of the guide post. The bottom of the upper die mounting plate is provided with an upper die that matches the lower die. The turntable is rotatably mounted on the fixed plate. One end of the turntable is connected to a reduction motor that drives the upper and lower dies to open or close. The top and bottom ends of the turntable are respectively connected to the upper connecting plate and the lower connecting plate via a connecting rod. Two sets of side plates are fixedly installed on the guide post and are located on the outside of the lower and upper dies. The two sets of side plates are fixedly connected by a connecting plate. The outside of the two sets of side plates are also provided with a sliding rod via a linear bearing. The motor assembly includes a movable motor, the output shaft of which is connected to a first connecting rod and a second connecting rod via two sets of gears. The other end of the first connecting rod is hinged to the fixed plate, and the other end of the second connecting rod is hinged to the connecting plate. The movable clamping spring assembly includes a sliding plate, a movable upper clamping spring rod, a movable lower clamping spring rod, a first transmission gear, a second transmission gear, an opening and closing rack, and a cylinder. The sliding plate is mounted on the slide rod of one of the side plates via a linear bearing. The sliding plate is provided with a first slide rail and a second slide rail via a slider. A first rack is fixedly mounted on the first slide rail, and a second rack is fixedly mounted on the second slide rail. One end of the movable upper clamping spring rod is fixedly mounted on the first slide rail, and one end of the movable lower clamping spring rod is fixedly mounted on the second slide rail. The first transmission gear is rotatably mounted on the sliding plate and is drivenly connected to the first rack and the second rack. The second transmission gear is rotatably mounted on the upper connecting plate and is hinged to the bottom end of the second slide rail via a connecting rod. The opening and closing rack is fixedly mounted on the fixed plate and is drivenly connected to the second transmission gear. The cylinder is fixedly mounted on the sliding plate, and its piston rod is fixedly connected to a group of side plates adjacent to it. The fixed spring clamping assembly includes a mounting plate and a spring clamping motor. The mounting plate is provided with a toothed first slide and a second slide via a slide rail slider. The first slide is provided with a fixed upper spring clamping rod, and the second slide is provided with a fixed lower spring clamping rod. The spring clamping motor is rotatably connected to the mounting plate and is connected to the toothed transmission of the first slide and the second slide via a gear set to drive the fixed upper spring clamping rod and the fixed lower spring clamping rod to open or close.

2. The tension spring and welding mechanism for a high-pressure bagged spring according to claim 1, characterized in that: The movable spring clamping assembly and the fixed spring clamping assembly are disposed opposite to each other on the side of the upper and lower die close to the movable motor.

3. The tension spring and welding mechanism for a high-pressure bagged spring according to claim 1, characterized in that: Two sets of movable upper clamping spring rods and two sets of movable lower clamping spring rods are provided. The two sets of movable upper clamping spring rods and the two sets of movable lower clamping spring rods form a limiting range for limiting and clamping the bag spring.

4. The tension spring and welding mechanism for a high-pressure bagged spring according to claim 1, characterized in that: Two sets of fixed upper clamping spring rods and two sets of fixed lower clamping spring rods are provided. The two sets of fixed upper clamping spring rods and the two sets of fixed lower clamping spring rods form a limiting range for limiting and clamping the bag spring.

5. The tension spring and welding mechanism for a high-pressure bagged spring according to claim 1, characterized in that: A pad is provided at the end of the slide bar away from the fixed spring assembly and the movable spring assembly.

6. The tension spring and welding mechanism for a high-pressure bagged spring according to claim 1, characterized in that: The mounting plate is integrally provided with two sets of sliding grooves arranged in a V-shape, and the first slide block and the second slide block are respectively slidably disposed in the two sets of sliding grooves.

Images