Sofa spring feeding mechanism

Abstract

The utility model discloses a sofa spring feeding mechanism which comprises a discharging limiting mechanism, discharging mechanisms with symmetrical structures are arranged on the two sides corresponding to the discharging limiting mechanism, each discharging mechanism comprises a pushing part capable of enabling the end of a spring to fall onto a receiving mechanism, and the receiving mechanism is driven by a driving mechanism. According to the automatic feeding and transferring device for the sofa springs, the springs can be transferred to the material hooking mechanism, the arc-shaped structures of the non-end portions of the springs are matched with the material hooking mechanism, through cooperation of the material blocking base, the discharging mechanism, the material receiving mechanism and the material hooking mechanism, rapid automatic discharging and transferring of the sofa springs are achieved, automatic production and installation can be achieved, the labor cost is reduced, and the production efficiency is improved. And moreover, the obtained product is relatively high in percent of pass, and the market competitiveness is favorably improved.

Description

Technical Field

[0001] The invention relates to the technical field of sofa manufacturing equipment, in particular to a feeding mechanism for sofa springs. Background Art

[0002] With the continuous progress of society and the continuous improvement of people's living standards, people's requirements for furniture comfort are getting higher and higher. As a multifunctional sofa, functional sofas are very popular because of their multiple functions, wide range of applications and stylish appearance.

[0003] Most traditional sofas are formed by directly filling with sponge materials. The production cost of sponge filling is high, and direct sponge filling requires the sponge to be made into a corresponding shape, which is very time-consuming and labor-intensive in the production process. Moreover, if sponge filling is used for too long, the sponge will be deformed and cannot be restored to its original state, and the sofa life is short. For example, the publication number is CN205144079U, and the patent name is a spring and a sofa cushion thereof. A spring and a sofa cushion thereof are disclosed, wherein the spring includes a spring main body and a connecting part for connecting and fixing with a sofa bottom plate. The spring main body is formed into a strip by a steel wire that is continuously bent in an S shape, and the two ends of the spring main body are respectively bent downward to form a buffer part, and the buffer part is connected to the connecting part. The use of the utility model can solve the problem that the spring in the traditional technology is easy to break due to force, effectively prolong the service life of the product, and save the amount of sponge used.

[0004] In order to install this serpentine spring, the publication number is CN218592903U, and the patent name is a sofa spring installation tool. A sofa spring installation tool is disclosed, including a fixing part, a driving handle, a limiting part, and a pressure plate. The driving handle is rotatably set on the fixing part, the limiting part is rotatably set on the driving handle, and the pressure plate is fixedly set on the driving handle. The fixing part is limited on the sofa frame when in use, the limiting part is used to limit the spring, and the pressure plate is used to tighten the buckle, which solves the problem of laborious and inefficient installation of the spring on the sofa frame in the prior art.

[0005] This installation method in the prior art involves manual material picking and then installation through tooling, which not only has high labor costs and poor product consistency, but also has low material picking efficiency and cannot achieve automation and scale, thereby reducing market competitiveness. Summary of the invention

[0006] The invention aims at the deficiencies in the prior art and provides a feeding mechanism for a sofa spring, which can realize automatic feeding and automatic installation of the sofa spring and has not only a simple structure but also high efficiency.

[0007] In order to solve the above technical problems, the present invention is solved through the following technical solutions: a feeding mechanism for sofa springs, including a discharging limiting mechanism, and a symmetrical feeding mechanism is arranged on both sides corresponding to the discharging limiting mechanism, and the feeding mechanism includes a pushing part that can make the spring end fall into the material receiving mechanism. The material receiving mechanism is driven by a driving mechanism to transfer the spring to the hooking mechanism, and the arc structure of the non-end part of the spring cooperates with the hooking mechanism, which can realize the spring transfer and complete the transformation of the structural position of the spring curved part, thereby realizing automatic feeding of spring installation.

[0008] In the above technical solution, the discharging limit mechanism includes a limit column fixing plate, the limit column is arranged on the limit column fixing plate along the vertical direction, and material stop seats are symmetrically arranged at both ends of the limit column fixing plate, and the two ends of the spring are respectively placed on the material stop seats.

[0009] In the above technical solution, the material blocking seat includes a vertical part and a horizontal part that are integrally connected. The horizontal part and the vertical part are provided with continuous hollow slots for the pushing part to pass through, and the slot height of the vertical part matches the diameter of the spring steel wire. In this way, each movement of the pushing part can only complete the pushing action on the bottom spring.

[0010] In the above technical solution, the material unloading mechanism and the material receiving mechanism are integrated into one piece, which is beneficial to making the equipment more stable and reducing the manufacturing cost.

[0011] In the above technical solution, the material unloading mechanism includes a material unloading plate, and the material pushing portion is arranged at an upper position of the front working end of the material unloading plate and matches the size of the hollow notch.

[0012] In the above technical solution, the setting position of the pushing portion is higher than the height of the plane where the horizontal portion is located.

[0013] In the above technical solution, a connecting arm extends from the lower part of the front working end of the blanking plate, which is combined with the material receiving mechanism to form a hook-shaped structure with an open top, so that the end of the spring can fall into the hook-shaped structure to achieve automatic blanking.

[0014] In the above technical solution, the driving mechanism includes a first cylinder group fixed on the cylinder seat and driving the blanking plate to move, which is used to realize the movement of the blanking mechanism and the receiving mechanism to complete the blanking and transfer of the spring.

[0015] In the above technical solution, the driving mechanism includes a second cylinder group fixed on the cylinder seat and driving the hooking mechanism to cooperate in completing the transfer action.

[0016] In the above technical solution, the hooking mechanism includes a hooking head with a concave structure located on the working part, and the arc structure at the non-end of the spring can be hooked in the hooking head.

[0017] Compared with the prior art, the present invention has the following beneficial effects: through the cooperation between the material blocking seat and the material feeding mechanism, the material receiving mechanism and the material hooking mechanism, the sofa spring can be quickly and automatically dropped and transferred, and automated production and installation can be realized, which not only reduces labor costs, but also obtains a higher product qualification rate, which is conducive to improving market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention with a spring placed therein.

[0020] Figure 2 It is a schematic diagram of the structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the material discharging limit mechanism.

[0022] Figure 4 It is a schematic diagram of the material blocking seat structure.

[0023] Figure 5 It is a schematic diagram of the assembly relationship between the first cylinder group, the material unloading mechanism and the material receiving mechanism.

[0024] Figure 6 It is a schematic diagram of the connection relationship between the material unloading mechanism and the material receiving mechanism.

[0025] Figure 7 It is a schematic diagram of the assembly relationship between the second cylinder group and the hooking mechanism.

[0026] Figure 8 Schematic diagram of spring structure. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings.

[0028] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be used for other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that, in the disclosure of the present invention, the directions or positions indicated by the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0030] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0031] See also Figure 8 The sofa spring 6 is a strip structure formed by continuous bending of a steel wire in an S shape. The end of the sofa spring 6 is bent to form two first curved portions 61 , and a plurality of continuously arranged intermediate curved portions 62 are formed between the two first curved portions 61 .

[0032] See also Figures 1 to 7 In order to realize automatic feeding of multiple groups of springs 6 and automatic installation, a feeding mechanism for sofa springs is provided, including a discharging limiting mechanism 1, and a symmetrical feeding mechanism, a receiving mechanism and a hooking mechanism 4 are provided on both sides of the discharging limiting mechanism 1. The feeding mechanism, the receiving mechanism and the hooking mechanism 4 can all be driven by a driving mechanism, so that the spring 6 on the discharging limiting mechanism 1 makes the two ends of the spring, that is, the first curved arc portion 61 fall into the position of the receiving mechanism 3 under the action of the feeding mechanism, and is driven by the driving mechanism to transfer the spring 6 to the hooking mechanism 4, and the arc structure of the non-end of the spring, that is, the middle curved arc portion 62 cooperates with the hooking mechanism 4 to realize feeding.

[0033] Of course, the material discharging limiting mechanism 1 , the material discharging mechanism, the material receiving mechanism, the material hooking mechanism 4 and the driving mechanism are all installed and arranged through the cylinder seat 5 , wherein the driving mechanism includes a first cylinder group 51 and a second cylinder group 52 .

[0034] The specific structure is: the discharging limit mechanism 1 includes a limit column fixing plate 11, a mounting position 111 is arranged on the limit column fixing plate, the limit column 12 is arranged on the limit column fixing plate 11 along the vertical direction through the mounting position 111, and the position can be adjusted through the mounting position 111. Obviously, in conjunction with the spring structure, there are preferably two limit columns 12, which is conducive to the neat stacking of several springs 6. The material blocking seats 13 are symmetrically arranged at both ends of the limit column fixing plate 11.

[0035] Furthermore, the material blocking seat 13 includes a vertical portion 131 and a horizontal portion 132 that are integrally connected. The horizontal portion 132 and the vertical portion 131 are provided with a continuous hollow slot 130 for the pushing portion to pass through, and the slot height of the vertical portion matches the diameter of the spring steel wire, so that each time the pushing portion moves, it can only complete the pushing action on the bottom spring.

[0036] Of course, in order to achieve effective stacking, a limit baffle 14 is set parallel to the side opposite to the limit column fixing plate 11, so that a cavity is formed between the limit column fixing plate 11 and the limit baffle 14, and the width of the cavity matches the width of the spring. In this way, it can further ensure that the springs can be stacked neatly.

[0037] Spring 6 Figure 1 As shown, the two middle curved portions 62 of the spring 6 are limited by the limiting pillars 12 , and the outer end surfaces of the two first curved portions 61 are respectively placed on the horizontal portions 132 on the two symmetrically arranged material blocking seats 13 .

[0038] A material unloading mechanism and a material receiving mechanism driven by a driving mechanism are symmetrically arranged at the rear sides of the two material blocking seats 13. In order to make the equipment structure simpler and the effect better, the material unloading mechanism and the material receiving mechanism 3 are integrated into one body. Of course, other split structures can also be used. However, not only is the structure complicated, but the manufacturing cost is also high.

[0039] A first cylinder group 51 is connected to one side of the unloading mechanism, and the first cylinder group 51 can drive the unloading mechanism and the receiving mechanism 3 to realize up and down, front and back, left and right feeding movements. The unloading mechanism includes a unloading plate 2, and the pushing portion 21 of the unloading plate 2 is arranged at the upper position of the front working end of the unloading plate 2. A connecting arm 22 extends from the lower part of the front working end of the unloading plate 2, and is combined with the receiving mechanism 3 to form a hook-shaped structure with an open top.

[0040] It is worth mentioning that the setting position of the pushing portion 21 is higher than the height of the plane where the horizontal portion 132 is located, and the width of the pushing portion 21, that is, the width of the blanking plate 2 matches the size of the hollow slot 130, so that the first curved portion 61 of the spring can be pushed through the hollow slot 130 to the connecting arm 22 and the material receiving mechanism 3 to form a hook-shaped structure with an open top, so that the first curved portion 61 is hooked in the hook-shaped structure to realize blanking.

[0041] The hooking mechanism 4 is arranged in the feeding direction of the spring 6 and is driven by the second cylinder group 52 fixed on the cylinder seat 5. It includes a hooking head 41 with an inner concave structure on the working part. The first curved portions 61 at the two ends of the spring fall into the hook-shaped structure and are driven by the first cylinder group 51 to move in the direction of the hooking mechanism 4, so that the middle curved portions 62 adjacent to the first curved portions 61 at the two ends are hooked in the hooking head 41. Of course, it is not limited to being hooked in the middle curved portions 62 adjacent to the two first curved portions 61, but can also be non-adjacent middle curved portions 62, and it is only necessary to leave the positions of the first curved portions 61 at the two ends.

[0042] The working principle of the above embodiment is as follows: a plurality of springs are arranged in a Figure 1 The stack is shown in the discharge limiting mechanism 1, the two middle curved portions 62 of the spring 6 are limited by the limiting column 12, the outer end surfaces of the two first curved portions 61 of the spring 6 are respectively placed on the horizontal portions of the two symmetrically arranged blocking seats, and the blanking plate 2 moves toward the blocking seat through the driving of the first cylinder group 51. The pushing portion 21 arranged at the upper position of the front working end of the blanking plate 2 passes through the hollow notch 130 provided on the horizontal portion 131 and the vertical portion 132 under the drive of the blanking plate 2, and pushes the outer end surfaces of the two first curved portions 61 of the spring 6 to the middle until the two first curved portions 61 of the spring 6 are After the outer end surface of the part 61 detaches from the horizontal part 131 and loses support, it falls into the hook-shaped structure formed by the connecting arm 22 and the material receiving mechanism 3, and is then driven by the first cylinder group 51 to drive the unloading plate 2 to move downward and then return to its original position. At this time, the spring is in a stretched state, and is then driven by the first cylinder group 51 to approach the direction of the hooking mechanism 4, so that the middle curved portion 62 adjacent to the first curved portions 61 at the two ends is hooked in the hooking head 41. At this time, the spring in the hook-shaped structure formed by the connecting arm 22 and the material receiving mechanism 3 completes the feeding action, returns to the initial position to continue receiving and transferring the material, and realizes automatic feeding.

[0043] The above technical solution can not only free hands and reduce or even avoid labor costs, but also help reduce production costs, improve production efficiency, facilitate large-scale production, and improve market competitiveness.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A feeding mechanism for a sofa spring, characterized in that: The invention comprises a material discharging limit mechanism (1), and a material discharging mechanism with a symmetrical structure is arranged on both sides of the material discharging limit mechanism. The material discharging mechanism comprises a material pushing portion (21) capable of causing an end of a spring to fall into a material receiving mechanism (3). The material receiving mechanism (3) is driven by a driving mechanism to transfer a spring (6) to a material hooking mechanism (4), and to make an arc-shaped structure at a non-end portion of the spring cooperate with the material hooking mechanism (4).

2. A sofa spring feeding mechanism according to claim 1, characterized in that: The material discharging limiting mechanism (1) comprises a limiting column fixing plate (11), a limiting column (12) being arranged on the limiting column fixing plate (11) in a vertical direction, and material blocking seats (13) being symmetrically arranged at both ends of the limiting column fixing plate (11), and two ends of the spring (6) resting on the material blocking seats (13) respectively.

3. A feeding mechanism for sofa springs according to claim 2, characterized in that: The material blocking seat (13) comprises a vertical portion (131) and a horizontal portion (132) which are integrally connected. The horizontal portion (132) and the vertical portion (131) are provided with continuous hollow slots (130) through which the material pushing portion can pass. The slot height of the vertical portion matches the diameter of the spring steel wire.

4. A feeding mechanism for sofa springs according to claim 3, characterized in that: The material unloading mechanism and the material receiving mechanism (3) are arranged in an integrated manner.

5. A feeding mechanism for sofa springs according to claim 4, characterized in that: The material removal mechanism comprises a material removal plate (2), and the material pushing portion (21) is arranged at an upper position of a front working end of the material removal plate (2) and matches the size of the hollow notch (130).

6. A feeding mechanism for sofa springs according to claim 5, characterized in that: The setting position of the pushing portion (21) is higher than the height of the plane where the horizontal portion (132) is located.

7. A sofa spring feeding mechanism according to claim 5, characterized in that: A connecting arm (22) extends from the lower part of the front working end of the blanking plate (2), and is combined with the material receiving mechanism (3) to form a hook-shaped structure with an open top.

8. The feeding mechanism of a sofa spring according to claim 4, characterized in that: The driving mechanism comprises a first cylinder group (51) fixed on a cylinder seat and driving the blanking plate (2) to move.

9. The feeding mechanism of a sofa spring according to claim 7, characterized in that: The driving mechanism comprises a second cylinder group (52) fixed on the cylinder seat (5) and driving the material hooking mechanism to operate.

10. A sofa spring feeding mechanism according to claim 9, characterized in that: The hooking mechanism (4) comprises a hooking head (41) provided with an inner concave structure on the working part, and the arc-shaped structure at the non-end of the spring can be hooked in the hooking head (41).

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