Spring cushion welding device and spring cushion production machine

Abstract

The application relates to a spring cushion welding device and a spring cushion production machine. The spring cushion welding device comprises a base, a welding cutter assembly, a die head and a driving assembly. The welding cutter assembly comprises a first welding cutter and a second welding cutter. The first welding cutter is slidably arranged on the base, and the second welding cutter is slidably arranged on the base and arranged in parallel with the first welding cutter. The die head is arranged opposite to the first welding cutter and the second welding cutter. The driving assembly is used for driving the first welding cutter and the second welding cutter to move in a third direction, and the moving directions of the first welding cutter and the second welding cutter are opposite. The first welding cutter and the die head can extrude cloth to form a first direction welding mark on the cloth, and the second welding cutter and the die head can extrude cloth to form a second direction welding mark on the cloth. The first direction and the second direction are perpendicular to each other. In the spring cushion welding device, the first welding cutter and the second welding cutter move by using the same power source, so that the cost of the spring cushion welding device can be reduced.

Description

Technical Field

[0001] This application relates to the field of spring cushion manufacturing, and more particularly to a welding apparatus and a spring cushion production machine. Background Technology

[0002] Welding equipment for spring cushions typically utilizes one or more die heads, which sequentially weld the fabric by moving the die heads in the horizontal and vertical directions. This method is slow and has low production efficiency. Another type of welding equipment for spring cushions separates the horizontal and vertical welding processes, using separate drives for each, but this method is more expensive. Utility Model Content

[0003] To address the aforementioned issues, this application provides a welding apparatus and a spring cushion production machine. The welding knife or die does not need to move laterally, and the lateral weld can be completed in one go, which is beneficial to improving welding efficiency.

[0004] In a first aspect, this application provides a welding apparatus for spring pads, comprising:

[0005] Base;

[0006] Welding knife assembly, including:

[0007] The first welding blade is slidably disposed on the base;

[0008] The second welding blade is slidably disposed on the base, and the second welding blade is arranged side by side with the first welding blade;

[0009] A die head, which is disposed opposite to the first welding knife and the second welding knife;

[0010] A driving component is used to drive the first welding knife and the second welding knife to move along a third direction, wherein the first welding knife and the second welding knife move in opposite directions.

[0011] The first welding blade and the die head can compress the fabric to form a welding mark in a first direction on the fabric, and the second welding blade and the die head can compress the fabric to form a welding mark in a second direction on the fabric, wherein the first direction and the second direction are perpendicular to each other.

[0012] According to some embodiments of this application, the driving component includes:

[0013] A driver is disposed on the base;

[0014] A turntable is located at the output end of the driver;

[0015] The first link and the second link are respectively connected to both sides of the rotation center of the turntable.

[0016] A first slider is slidably disposed on the base, and the first slider is respectively connected to the first connecting rod and the first welding knife;

[0017] The second slider is slidably disposed on the base, and the second slider is connected to the second connecting rod and the second welding knife respectively.

[0018] According to some embodiments of this application, the driving component further includes:

[0019] A first elastic element is disposed between the first slider and the first welding knife;

[0020] The second elastic element is disposed between the second slider and the second welding knife.

[0021] According to some embodiments of this application, the driving component further includes:

[0022] The first sliding column has one end fixedly connected to the first welding knife and the other end slidably connected to the first slider, or one end of the first sliding column is slidably connected to the first welding knife and the other end of the first sliding column is fixedly connected to the first slider.

[0023] The second sliding column has one end fixedly connected to the second welding knife and the other end slidably connected to the second slider, or one end of the second sliding column is slidably connected to the second welding knife and the other end of the second sliding column is fixedly connected to the second slider.

[0024] According to some embodiments of this application, the surface of the first welding knife is distributed with a plurality of first protrusions arranged sequentially along the first direction.

[0025] According to some embodiments of this application, the second welding knife includes a plurality of welding teeth arranged sequentially at intervals along the first direction, and the spacing between adjacent welding teeth is greater than the diameter of the spring.

[0026] According to some embodiments of this application, the surface of the welding tooth is provided with a second protrusion.

[0027] According to some embodiments of this application, the number of the second protrusions on each of the welding teeth is multiple, and the multiple second protrusions are arranged sequentially along the second direction.

[0028] Secondly, this application provides a spring cushion production machine, including the welding apparatus for spring cushions as described above.

[0029] According to some embodiments of this application, the number of welding devices for the spring pad is multiple, and the multiple welding devices are arranged sequentially along a first direction.

[0030] In the welding apparatus for spring pads of this application, a set of drive components can drive a first welding knife or a second welding knife to perform welding. The first and second welding knives use the same power source for movement, which helps to reduce the cost of the welding apparatus for spring pads. The welding knife or die does not need to move laterally, and the lateral weld can be completed in one go, which helps to improve welding efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without exceeding the scope of protection claimed by this application.

[0032] Figure 1 This is a schematic diagram of the welding device for the spring pad according to an embodiment of this application. Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the welding device for the spring pad according to an embodiment of this application. Figure 2 ;

[0034] Figure 3 This is a schematic diagram of the downward movement of the first welding knife in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the second welding knife moving downwards in an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of the sliding column and sliding hole fitting in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the first protrusion in an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of the welding teeth in an embodiment of this application;

[0039] Figure 8 This is a schematic diagram of a spring cushion production machine according to an embodiment of this application. Detailed Implementation

[0040] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] like Figure 1 and Figure 2As shown, an embodiment of this application provides a welding apparatus 100 for a spring pad. The welding apparatus 100 includes a base 10, a welding blade assembly 20, a die head 30, and a drive assembly 40. The base 10 is used to provide support for other components.

[0042] The welding knife assembly 20 includes a first welding knife 21 and a second welding knife 22. Both the first welding knife 21 and the second welding knife 22 extend along a first direction, optionally a horizontal X-direction. Both the first welding knife 21 and the second welding knife 22 are slidably disposed on the base 10, and both are movable in a third direction, for example, a vertical direction. The second welding knife 22 is arranged side-by-side with the first welding knife 21. Optionally, along a second direction, the second welding knife 22 is located in front of the first welding knife 21, and the second direction is a horizontal Y-direction. The first direction and the second direction are perpendicular to each other.

[0043] like Figure 3 As shown, the mold head 30 is adapted to the welding knife assembly 20, and the mold head 30 is disposed opposite to the first welding knife 21 and the second welding knife 22. For example, the mold head 30 is located below the welding knife assembly 20. The mold head 30 is an ultrasonic mold head.

[0044] like Figure 4 As shown, the drive assembly 40 drives the first welding knife 21 and the second welding knife 22 to move along a third direction, with the first welding knife 21 and the second welding knife 22 moving in opposite directions. When the first welding knife 21 moves downward, the second welding knife 22 moves upward. When the second welding knife 22 moves downward, the first welding knife 21 moves upward.

[0045] The first welding blade 21 moves downward, and the first welding blade 21 and the die head 30 can compress the fabric of the spring pad to form welding marks arranged in a first direction on the fabric, as transverse welding marks. The second welding blade 22 moves downward, and the second welding blade 22 and the die head 30 can compress the fabric of the spring pad to form welding marks arranged in a second direction on the fabric, as longitudinal welding marks.

[0046] The first welding blade 21 and the second welding blade 22 of this application can be used for transverse welding and longitudinal welding, respectively. A set of drive components 40 can drive the first welding blade 21 or the second welding blade 22 to perform welding, and the first welding blade 21 and the second welding blade 22 use the same power source to move, which helps to reduce the cost of the welding device 100.

[0047] like Figure 2 As shown, in some embodiments, the drive assembly 40 includes: a driver 41, a turntable 42, a first link 431, a second link 432, a first slider 441, and a second slider 442.

[0048] A driver 41 is mounted on the base 10. Optionally, the driver 41 is a motor. A turntable 42 is mounted on the output end of the driver 41. The driver 41 can rotate the turntable 42 in two opposite directions by rotating it clockwise and counterclockwise. Optionally, the turntable 42 is circular.

[0049] The top ends of the first link 431 and the second link 432 are respectively hinged to the turntable 42. The first link 431 and the second link 432 are respectively connected to both sides of the rotation center of the turntable 42.

[0050] The first slider 441 is slidably disposed on the base 10. For example, the base 10 is provided with a first guide rail extending in a third direction, and the first slider 441 is slidably disposed on the first guide rail. The first slider 441 is hinged to the bottom end of the first connecting rod 431. A third slider 481 is provided on the side wall of the first welding knife 21, and the third slider 481 is slidably disposed on the first guide rail. The third slider 481 is located below the first slider 441. The first slider 441 is connected to the first welding knife 21 and can drive the first welding knife 21 to move up and down.

[0051] The second slider 442 is slidably disposed on the base 10. For example, the base 10 is provided with a second guide rail extending in a third direction, and the second slider 442 is slidably disposed on the second guide rail. The second slider 442 is hinged to the bottom end of the second connecting rod 432. A fourth slider (not shown in the figure) is provided on the side wall of the second welding knife 22. The fourth slider is slidably disposed on the second guide rail and is located below the second slider 442. The second slider 442 is connected to the second welding knife 22 and can drive the second welding knife 22 to move up and down.

[0052] For example, when the driver 41 rotates forward, the first connecting rod 431 pushes the first slider 441 and the first welding knife 21 downward to perform transverse welding on the fabric. When the driver 41 rotates in reverse, the first welding knife 21 moves upward, and the second connecting rod 432 pushes the second slider 442 and the second welding knife 22 downward to perform longitudinal welding on the fabric.

[0053] In some embodiments, the drive assembly 40 further includes a first elastic element 451 and a second elastic element 452, both of which can be springs. The first elastic element 451 is disposed between the first slider 441 and the first welding blade 21, and can buffer the movement of the first welding blade 21. Optionally, the sidewall of the first slider 441 is provided with a first boss, the sidewall of the first welding blade 21 is provided with a second boss, and the first elastic element 451 is located between the two first bosses and the second boss.

[0054] The second elastic element 452 is disposed between the second slider 442 and the second welding blade 22. The second elastic element 452 can buffer the movement of the second welding blade 22. Optionally, the side wall of the second slider 442 is provided with a third boss, the side wall of the second welding blade 22 is provided with a fourth boss, and the second elastic element 452 is located between the third boss and the fourth boss.

[0055] like Figure 5 As shown, in some embodiments, the drive assembly 40 further includes a first slide post 461 and a second slide post 462. One end of the first slide post 461 is fixedly connected to the first welding knife 21, and the other end is slidably connected to the first slider 441, or one end of the first slide post 461 is slidably connected to the first welding knife 21, and the other end of the first slide post is fixedly connected to the first slider 441.

[0056] One end of the second sliding column 462 is fixedly connected to the second welding knife 22, and the other end is slidably connected to the second slider 442; or one end of the second sliding column 462 is slidably connected to the second welding knife 22, and the other end of the second sliding column 462 is fixedly connected to the second slider 442.

[0057] For example, the first slider 441 is provided with a first sliding hole 4411, and the second slider 442 is provided with a second sliding hole (not shown in the figure). Both the first sliding hole 4411 and the second sliding hole extend in a third direction.

[0058] The drive assembly 40 further includes a first limiting member 471 and a second limiting member 472. The bottom end of the first sliding column 461 is fixedly connected to the first welding knife 21, and the top end of the first sliding column 461 passes through the first sliding hole 4411, allowing the first sliding column 461 to slide within the first sliding hole 4411. A first elastic member 451 is fitted onto the outside of the first sliding column 461. The first limiting member 471 is disposed on the first sliding column 461, located above the first sliding hole 4411. Optionally, the first limiting member 471 and the first sliding column 461 are threadedly connected. When the first slider 441 moves upward, the first sliding column 461 pulls the first welding knife 21 upward to prevent the first elastic member 451 from being overstretched.

[0059] The bottom end of the second sliding column 462 is fixedly connected to the second welding knife 22, and the top end of the second sliding column 462 passes through the second sliding hole, allowing the second sliding column 462 to slide within the second sliding hole. A second elastic member 452 is fitted onto the outside of the second sliding column 462. A second limiting member 472 is disposed on the second sliding column 462, located above the second sliding hole. Optionally, the second limiting member 472 and the second sliding column 462 are threadedly connected. When the second slider 442 moves upward, the second sliding column 462 pulls the second welding knife 22 upward to prevent the second elastic member 452 from being overstretched.

[0060] like Figure 6As shown, in some embodiments, the bottom surface of the first welding blade 21 has a plurality of first protrusions 211 arranged sequentially along a first direction. When the first welding blade 21 welds the fabric, the plurality of first protrusions 211 can form a plurality of discontinuous welding marks arranged along the first direction on the fabric. The spacing between adjacent first protrusions 211 is set according to requirements.

[0061] like Figure 7 As shown, in some embodiments, the bottom surface of the second welding blade 22 is provided with a plurality of welding teeth 221 arranged sequentially at intervals along a first direction. The welding teeth 221 are used for longitudinal welding of the fabric. The distance between adjacent welding teeth 221 is slightly larger than the diameter of the spring in the fabric, so as to avoid the spring during welding.

[0062] In some embodiments, the bottom surface of the welding teeth has second protrusions 222. When the second welding blade 22 welds the fabric, the second protrusions 222 can form welding marks on the fabric. During longitudinal welding, the fabric is pulled, and the second welding blade 22 completes the longitudinal welding through multiple third-direction movements.

[0063] In some embodiments, the number of second protrusions 222 on each welding tooth 221 is multiple. For example, two second protrusions 222 are distributed on the bottom surface of each welding tooth 221. The multiple second protrusions 222 are arranged sequentially along the second direction so that each welding tooth 221 can form multiple longitudinal welding marks on the fabric each time the second welding knife moves down, thereby improving the welding efficiency.

[0064] like Figure 8 As shown, an embodiment of this application provides a spring cushion production machine 300, which includes a welding device 100 for spring cushions as described above. The spring cushion production machine 300 also includes a fabric conveying device and a spring conveying device. The fabric conveying device is used to convey fabric 200 to the welding device 100, and the spring conveying device is used to convey springs into the fabric 200. The welding device 100 is used for welding the fabric.

[0065] In some embodiments, the number of welding devices 100 for the spring pad is multiple. The multiple welding devices 100 are arranged sequentially along a first direction to facilitate welding of spring pads with a larger width.

[0066] The embodiments of this application have been described in detail above. Specific examples have been used to 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 technical solutions and core ideas of this application. Therefore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A welding device for spring pads, characterized in that, include: Base; Welding knife assembly, including: The first welding blade is slidably disposed on the base; The second welding blade is slidably disposed on the base, and the second welding blade is arranged side by side with the first welding blade; A die head, which is disposed opposite to the first welding knife and the second welding knife; A driving component is used to drive the first welding knife and the second welding knife to move along a third direction, wherein the first welding knife and the second welding knife move in opposite directions. The first welding blade and the die head can compress the fabric to form a welding mark in a first direction on the fabric, and the second welding blade and the die head can compress the fabric to form a welding mark in a second direction on the fabric, wherein the first direction and the second direction are perpendicular to each other.

2. The welding apparatus according to claim 1, characterized in that, The driving component includes: A driver is disposed on the base; A turntable is located at the output end of the driver; The first link and the second link are respectively connected to both sides of the rotation center of the turntable. A first slider is slidably disposed on the base, and the first slider is respectively connected to the first connecting rod and the first welding knife; The second slider is slidably disposed on the base, and the second slider is connected to the second connecting rod and the second welding knife respectively.

3. The welding apparatus according to claim 2, characterized in that, The driving component also includes: A first elastic element is disposed between the first slider and the first welding knife; The second elastic element is disposed between the second slider and the second welding knife.

4. The welding apparatus according to claim 3, characterized in that, The driving component also includes: The first sliding column has one end fixedly connected to the first welding knife and the other end slidably connected to the first slider, or one end of the first sliding column is slidably connected to the first welding knife and the other end of the first sliding column is fixedly connected to the first slider. The second sliding column has one end fixedly connected to the second welding knife and the other end slidably connected to the second slider, or one end of the second sliding column is slidably connected to the second welding knife and the other end of the second sliding column is fixedly connected to the second slider; 5. The welding apparatus according to claim 1, characterized in that, The surface of the first welding knife is distributed with a plurality of first protrusions arranged sequentially along the first direction.

6. The welding apparatus according to claim 1, characterized in that, The second welding knife includes a plurality of welding teeth arranged sequentially at intervals along the first direction, and the distance between adjacent welding teeth is greater than the diameter of the spring.

7. The welding apparatus according to claim 1, characterized in that, The surface of the welding tooth has a second protrusion.

8. The welding apparatus according to claim 7, characterized in that, The number of the second protrusions on each of the welding teeth is multiple, and the multiple second protrusions are arranged sequentially along the second direction.

9. A spring cushion production machine, characterized in that, The welding apparatus includes the spring pad as described in any one of claims 1 to 8.

10. The spring cushion production machine according to claim 9, characterized in that, The number of welding devices for the spring pad is multiple, and the multiple welding devices are arranged sequentially along the first direction.

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