Bagged spring bed core manufacturing equipment

Abstract

The utility model belongs to the technical field of bed core production, and particularly relates to bagged spring bed core manufacturing equipment which comprises a workbench, a feeding mechanism, a welding mechanism and a shifting mechanism. The ultrasonic die head assembly comprises a plurality of ultrasonic die heads arranged in the horizontal direction. According to the invention, the feeding mechanism which reciprocates in the horizontal direction, the first sealing cutter and the second sealing cutter which are alternately arranged up and down and can move up and down in the vertical direction, and the plurality of ultrasonic die heads which are arranged in the horizontal direction are matched with the stirring mechanism which is used for stirring the bed core to move back and forth; hot melt adhesive bonding is replaced by ultrasonic welding between the adjacent spring strings, so that the problems of hot melt adhesive pollution and the like are solved; and the whole equipment is simple in structure, simplified in process, full-automatic in preparation process and high in production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of bed core production, and in particular relates to a bag spring bed core manufacturing device. Background Art

[0002] The development of pocket spring mattress core technology aims to improve the comfort and durability of the mattress core. The independent pocket spring system achieves more precise support and pressure distribution for different parts of the body by encapsulating each spring individually in a small pocket made of non-woven fabric or other fabric. The traditional manufacturing method is to use hot melt adhesive to fix these independent spring units together to form a continuous and stable bed net structure. However, this process not only consumes a lot of materials (especially hot melt adhesive), but also has inefficiencies in the production process, such as long preheating time, high maintenance costs of the glue box, and the working environment is easily contaminated by glue spillage.

[0003] To solve these problems, modern technology has introduced glue-free connection technology, such as ultrasonic welding or hot melt welding. Ultrasonic welding uses high-frequency vibration to generate friction heat between material molecules, thereby achieving local rapid melting and solidification connection. This method does not require additional adhesives, greatly reducing environmental pollution and consumables costs. At the same time, the welding point is high in strength, which can ensure a stable connection between springs.

[0004] From the perspective of production efficiency, the current process design of glue-free welding equipment is relatively complex, especially the loading process often requires manual or semi-automatic operation. This means that operators need to frequently intervene in the production process, which not only limits the continuity and smoothness of the assembly line operation, but may also lead to limited production speed and fail to achieve the expected high-efficiency output goals. At the same time, manual participation may also introduce human errors, affecting the consistency and stability of product quality.

[0005] Secondly, the precise consistency of the welding parts is a key factor in ensuring the performance of the pocket spring mattress core. However, existing equipment may have problems such as position deviation or uneven welding effect during the welding process, which will directly affect the firmness and fit between the spring strings, further threatening the overall support performance and service life of the mattress core. Ideal welding should ensure that each spring unit can be precisely aligned and welded to a consistent standard, so as to maximize the advantages of the independent pocket spring system and provide a high-quality sleeping experience.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The utility model hopes to provide a pocket spring mattress core manufacturing device, the specific scheme is as follows:

[0008] A pocket spring bed core manufacturing device comprises a workbench, a feeding mechanism, a welding mechanism and a toggle mechanism, wherein the feeding mechanism reciprocates in the horizontal direction and is used to convey a spring string to the workbench, wherein the spring string comprises a plurality of pocket springs connected in sequence; the welding mechanism comprises a first sealing knife assembly, a second sealing knife assembly and an ultrasonic die assembly, wherein a plurality of the first sealing knife assemblies are arranged on a first mounting seat, and a plurality of the second sealing knife assemblies are arranged on a second mounting seat, and the first sealing knife assembly and the second sealing knife assembly can move up and down in a vertical direction; the ultrasonic die assembly comprises a plurality of ultrasonic dies arranged in the horizontal direction, and the ultrasonic die assembly and the first sealing knife assembly or the second sealing knife assembly complete welding by cooperating to move closer to and further away from each other; the toggle mechanism comprises a plurality of toggle rods, wherein a plurality of the toggle rods are arranged on a third mounting seat and are used to toggle the bed core to move in a front-rear direction.

[0009] A connecting plate is provided on one side of the ultrasonic die head, a rotating shaft is provided between the ultrasonic die head and the connecting plate, and the ultrasonic die head can rotate around the axis of the rotating shaft.

[0010] An adjusting piece is provided at the bottom of the ultrasonic die head, and the adjusting piece cooperates with the rotating shaft to adjust the angle of the ultrasonic die head.

[0011] The adjusting member comprises a first supporting plate fixedly connected to the ultrasonic die head and a second supporting plate fixedly connected to the bottom of the connecting plate, a connecting member is arranged between the first supporting plate and the second supporting plate, and an elastic member is sleeved on the connecting member.

[0012] A buffer is provided on the second support plate, and a driving assembly is provided on one side of the buffer; the buffer includes a cylinder or an elastic material.

[0013] The driving assembly comprises a motor, an eccentric disk and a connecting rod, one end of the connecting rod is connected to the cylinder, and the other end is connected to the eccentric disk, and the motor drives the eccentric disk to rotate.

[0014] Spring toggle components are arranged on both sides of the workbench.

[0015] The feeding mechanism includes a driving member and a conveying member, the conveying members are arranged in pairs, and a feeding channel is formed between the paired conveying members, at least one of the conveying members is an active member, and the active member includes at least one of a ratchet, a roller, and a conveyor belt, and the driving member is used to drive the active member to convey a spring string.

[0016] The feeding mechanism comprises a limiting member, and the limiting member and the conveying member together form a feeding channel.

[0017] The beneficial effects of the utility model are as follows:

[0018] (1) The present application provides a feeding mechanism that reciprocates in the horizontal direction, a first sealing knife and a second sealing knife that are alternately arranged up and down and can move up and down in the vertical direction, and multiple ultrasonic die heads arranged in the horizontal direction, in conjunction with a toggle mechanism for toggling the bed core forward and backward, so that ultrasonic welding replaces hot melt adhesive bonding between adjacent spring strings, thereby avoiding problems such as hot melt adhesive contamination; the overall equipment structure is simple, the process is simplified, the preparation process is fully automatic, and the production efficiency is high;

[0019] (2) The present application is provided with an adjusting part, a rotating shaft and a buffer part. By adjusting the upper and lower heights of the adjusting part, the angle of the ultrasonic die head can be adjusted. That is, when the angle of the sealing knife is offset to a certain extent, the ultrasonic die head is close to it for welding, and the angle can be automatically adjusted around the axis, so that each spring unit can be accurately aligned and welded to a consistent standard, thereby improving the overall support performance and service life of the bed core. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a pocket spring mattress core manufacturing device of the utility model;

[0021] Figure 2 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 1 ;

[0022] Figure 3 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 2 ;

[0023] Figure 4 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 3 ;

[0024] Figure 5 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 4 ;

[0025] Figure 6 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 5 ;

[0026] Figure 7 This is a partial structural diagram of a pocket spring mattress core manufacturing device of the utility model. Figure 6 ;

[0027] The numbers are as follows: 1. workbench; 2. spring string; 3. first sealing knife assembly; 31. first mounting seat; 32. first driving mechanism; 33. first sealing knife; 4. second sealing knife assembly; 41. second mounting seat; 42. second driving mechanism; 43. second sealing knife; 5. ultrasonic die assembly; 51. ultrasonic die; 52. sixth driving mechanism; 53. connecting plate; 54. rotating shaft; 55. adjusting member; 551. first supporting plate; 552. second supporting plate; 553. connecting member; 554. elastic member; 6. lever; 61. third mounting seat; 62. third driving mechanism; 63. fourth driving mechanism; 64. fifth driving mechanism; 7. cylinder; 8. driving assembly; 81. motor; 82. eccentric disk; 83. connecting rod; 9. spring toggle assembly; 10. bed core; 11. conveying member; 12. limiting member. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific implementation methods.

[0029] In the following description, all concepts related to directionality (or orientation) such as up, down, left, right, front and back are with reference to the position state of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be understood as special limitations on the technical solution provided by the utility model.

[0030] like Figure 1-Figure 7 As shown, a pocket spring bed core manufacturing device includes a workbench 1, a feeding mechanism, a welding mechanism and a toggle mechanism. The feeding mechanism reciprocates in the horizontal direction and is used to convey a spring string 2 to the workbench 1. The spring string 2 includes a plurality of pocket springs connected in sequence. The welding mechanism includes a first sealing knife assembly 3, a second sealing knife assembly 4 and an ultrasonic die assembly 5. A plurality of first sealing knife assemblies 3 are arranged on a first mounting seat 31, and a plurality of second sealing knife assemblies 4 are arranged on a second mounting seat 41. The first sealing knife assembly 3 and the second sealing knife assembly 4 can move up and down in the vertical direction. Specifically, the first sealing knife assembly 3 moves up and down through the first driving mechanism 32, and the second sealing knife assembly 4 moves up and down through the second driving mechanism 42.

[0031] The ultrasonic die assembly 5 includes a plurality of ultrasonic dies 51 arranged in the horizontal direction. The ultrasonic die assembly 5 and the first sealing knife assembly 3 or the second sealing knife assembly 4 are moved closer to and farther from each other through the sixth driving mechanism 52 to complete welding. The toggle mechanism includes a plurality of toggle rods 6, which are arranged on the third mounting seat 61 and are used to toggle the bed core 10 to move in the front-to-back direction. Specifically, the toggle rod 6 moves forward and backward through the third driving mechanism 62, moves up and down through the fourth driving mechanism 63, and moves left and right through the fifth driving mechanism 64. And the first driving mechanism 32, the second driving mechanism 42, the third driving mechanism 62, the fourth driving mechanism 63, the fifth driving mechanism 64 and the sixth driving mechanism 52 can all adopt at least one of a cylinder driving mechanism, a cam connecting rod mechanism, a gear rack mechanism, a chain sprocket mechanism, a synchronous belt synchronous wheel mechanism or a conveyor belt conveyor chain mechanism.

[0032] A connecting plate 53 is provided on one side of the ultrasonic die 51, and a rotating shaft 54 ​​is provided between the ultrasonic die 51 and the connecting plate 53, so that the ultrasonic die 51 can rotate around the axis of the rotating shaft 54. An adjusting member 55 is provided at the bottom of the ultrasonic die 51, and the adjusting member 55 cooperates with the rotating shaft 54 ​​to adjust the angle of the ultrasonic die 51, wherein the adjusting member 55 can be arranged on one side or both sides of the bottom of the ultrasonic die 51 as required. The adjusting member 55 includes a first supporting plate 551 fixedly connected to the ultrasonic die 51 and a second supporting plate 552 fixedly connected to the bottom of the connecting plate 53, a connecting member 553 is provided between the first supporting plate 551 and the second supporting plate 552, and an elastic member 554 is sleeved on the connecting member 553, and in order to limit the position of the elastic member 554, the connecting member 553 and the two supporting plates can be connected by threads.

[0033] A buffer is provided on the second support plate 552, and a driving assembly 8 is provided on one side of the buffer. The buffer includes a cylinder 7 or an elastic material, and the elastic material can be a spring, etc. The driving assembly 8 includes a motor 81, an eccentric disk 82 and a connecting rod 83. One end of the connecting rod 83 is connected to the cylinder 7, and the other end is connected to the eccentric disk 82. The motor 81 drives the eccentric disk 82 to rotate. When the sealing knife angle deviates to a certain extent and is close to the ultrasonic die head 51 for welding, the force exerted by the sealing knife on the ultrasonic die head 51 will be too large. At this time, the motor 81 drives the eccentric disk 82 to rotate, and the connecting rod 83 gives a thrust to the cylinder 7 (or spring), and the cylinder 7 (or spring) gives an air buffer (elastic force) to the second support plate 552, so that the ultrasonic die head 51 can adjust the angle around the axis with the cooperation of the elastic member 554 and the rotating shaft 54 ​​until the welding position and angle of the sealing knife and the ultrasonic die head 51 are standardized; when the sealing knife angle is normal or the force exerted on the ultrasonic die head 51 is too small, the cylinder 7 remains stationary, and the sixth driving assembly 8 drives the ultrasonic die head assembly 5 forward to weld close to the sealing knife.

[0034] Spring toggle assemblies 9 are provided on both sides of the workbench 1. When the feeding mechanism moves to one side of the workbench 1, there is no connection between the two rows of spring strings 2 at the rear end of this side (the other side of the two rows of spring strings 2 is connected, so there is no need to use the spring toggle assemblies 9). Therefore, the spring toggle assemblies 9 on this side operate, and the spring toggle assemblies 9 are used to resist the pocket springs input by the feeding mechanism to prevent the pocket springs from running off the track and prevent the position of the bed core 10 from shifting. The feeding mechanism includes a driving member and a conveying member 11. The conveying members 11 are arranged in pairs, and a feeding channel is formed between the paired conveying members 11. At least one conveying member 11 is an active member, and the active member includes at least one of a ratchet, a roller, and a conveyor belt. The driving member is used to drive the active member to convey the spring string 2. The feeding mechanism includes a limit member 12, and the limit member 12 and the conveying member 11 together form a feeding channel.

[0035] Here’s how it works:

[0036] First, the feeding mechanism is moved from right to left to feed the spring string 2 from the feeding channel to the workbench 1. The spring string 2 will be arranged on the workbench 1 from right to left (such as Figure 6 As shown), the first driving mechanism 32 is then driven to move the first sealing knife assembly 3 downward, so that the first sealing knife 33 is inserted between adjacent spring strings 2, and then the sixth driving mechanism 52 is used to move the ultrasonic die head 51 and the first sealing knife 33 close to each other to complete the welding.

[0037] After welding is completed, the first driving mechanism 32 drives the first sealing knife assembly 3 to move upward, and the fifth driving mechanism 64 drives the lever 6 to move left and right, and adjusts the position of the lever 6 to be in the same vertical plane as the weld formed after welding. Then, the fourth driving mechanism 63 drives the lever 6, and sets the position of the lever 6 at the front end of the weld. The third driving mechanism 62 drives the lever 6 to move backward, that is, the lever 6 drives the bed core 10 to move backward. When the lever 6 drives the bed core 10 to move to the front end, since there is no connection relationship on one side of the two rows of spring strings 2 at the rear end (there is a connection relationship on the other side), it is necessary to use the spring toggle assembly 9 set on this side to resist the bag spring (such as Figure 6 and Figure 7 As shown), to avoid its position shifting, thereby avoiding the position of the bed core 10 on the workbench 1 from shifting.

[0038] Afterwards, the third driving mechanism 62, the fourth driving mechanism 63 and the fifth driving mechanism 64 are used to move the lever 6 away from the bed core 10, and the spring string 2 is transported to the workbench 1 by the loading mechanism. The second driving mechanism 42 drives the second sealing knife assembly 4 to move downward so that the second sealing knife 43 is inserted between adjacent spring strings 2, and then the ultrasonic die head 51 and the second sealing knife 43 are brought close to each other to complete the welding. The above operations are repeated until a bed core of a certain specification is formed by welding, and then the bed core 10 is cut into an independent first bed core and a second bed core by a cutting device.

[0039] It should be noted that the welds formed by welding the first sealing knife assembly 3 and the welds formed by welding the second sealing knife assembly 4 in the present application are arranged in a front-to-back alternating manner. The purpose of such arrangement is not only to replace the hot melt adhesive bonding between adjacent spring strings 2 with ultrasonic welding, thereby avoiding problems such as hot melt adhesive pollution, but also to not affect the supporting performance of the bed core 10. The overall equipment structure is simple, the process is simplified, the preparation process is fully automatic, and the production efficiency is high. An adjusting member 55, a rotating shaft 54 ​​and a buffer member are used. By adjusting the upper and lower heights of the adjusting member 55, the angle of the ultrasonic die 51 is adjusted. That is, when the angle of the sealing knife is offset to a certain extent, the ultrasonic die 51 is close to it for welding, and the angle can be automatically adjusted around the axis of the rotating shaft 54, so that each spring unit can be accurately aligned and welded to a consistent standard, thereby improving the overall supporting performance and service life of the bed core 10.

[0040] The above-mentioned implementation mode is only used to explain the inventive concept of the utility model, and is not intended to limit the protection of the rights of the utility model. Any non-substantial changes to the utility model using this concept shall fall within the protection scope of the utility model.

Claims

1. A pocket spring mattress core manufacturing device, characterized in that: Including workbench, feeding mechanism, welding mechanism and toggle mechanism, The feeding mechanism reciprocates in the horizontal direction and is used to convey the spring string to the workbench, wherein the spring string includes a plurality of pocket springs connected in sequence; The welding mechanism comprises a first sealing knife assembly, a second sealing knife assembly and an ultrasonic die assembly, a plurality of the first sealing knife assemblies are arranged on a first mounting seat, a plurality of the second sealing knife assemblies are arranged on a second mounting seat, and the first sealing knife assembly and the second sealing knife assembly can move up and down along a vertical direction; The ultrasonic die assembly comprises a plurality of ultrasonic die heads arranged in a horizontal direction, and the ultrasonic die assembly and the first sealing knife assembly or the second sealing knife assembly complete welding by moving closer to or farther from each other; The shifting mechanism comprises a plurality of shifting rods, which are arranged on the third mounting seat and are used to shift the bed core to move in the front-rear direction.

2. The pocket spring mattress core manufacturing equipment according to claim 1, characterized in that: A connecting plate is provided on one side of the ultrasonic die head, a rotating shaft is provided between the ultrasonic die head and the connecting plate, and the ultrasonic die head can rotate around the axis of the rotating shaft.

3. The pocket spring mattress core manufacturing equipment according to claim 2, characterized in that: An adjusting piece is provided at the bottom of the ultrasonic die head, and the adjusting piece cooperates with the rotating shaft to adjust the angle of the ultrasonic die head.

4. The pocket spring mattress core manufacturing equipment according to claim 3, characterized in that: The adjusting member comprises a first supporting plate fixedly connected to the ultrasonic die head and a second supporting plate fixedly connected to the bottom of the connecting plate, a connecting member is arranged between the first supporting plate and the second supporting plate, and an elastic member is sleeved on the connecting member.

5. The pocket spring mattress core manufacturing equipment according to claim 4, characterized in that: A buffer is provided on the second support plate, and a driving assembly is provided on one side of the buffer; the buffer includes a cylinder or an elastic material.

6. The pocket spring mattress core manufacturing equipment according to claim 5, characterized in that: The driving assembly comprises a motor, an eccentric disk and a connecting rod, one end of the connecting rod is connected to the cylinder, and the other end is connected to the eccentric disk, and the motor drives the eccentric disk to rotate.

7. The pocket spring mattress core manufacturing equipment according to claim 1, characterized in that: Spring toggle components are arranged on both sides of the workbench.

8. The pocket spring mattress core manufacturing equipment according to claim 1, characterized in that: The feeding mechanism includes a driving member and a conveying member, the conveying members are arranged in pairs, and a feeding channel is formed between the paired conveying members, at least one of the conveying members is an active member, and the active member includes at least one of a ratchet, a roller, and a conveyor belt, and the driving member is used to drive the active member to convey a spring string.

9. The pocket spring mattress core manufacturing equipment according to claim 8, characterized in that: The feeding mechanism comprises a limiting member, and the limiting member and the conveying member together form a feeding channel.

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