Seat backrest foaming line forming machine

Abstract

The utility model discloses a seat backrest foaming line forming machine which comprises a machine frame, and a wire guide sleeve, a rotating disc and a first driving device used for driving the rotating disc to rotate are arranged on the machine frame. A first bracket and a second bracket are arranged on the turntable; the second support is provided with a through hole for the foaming line to penetrate through. A cutter device for cutting off the foaming line is arranged on the second bracket; a wire twisting device is arranged on the first support and comprises a core rod, a twisting needle base rotationally connected with the core rod, a twisting needle arranged on the twisting needle base, a second driving device used for driving the core rod to do linear reciprocating motion and a third driving device used for driving the twisting needle base to rotate. According to the technical scheme, automatic bending forming and cutting-off of the foaming line are achieved, and production efficiency and machining quality are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile manufacturing, especially relates to a seat back foaming line forming machine. BACKGROUND

[0002] The seat back foaming line (or called "seat back foaming reinforcing iron wire" and other names) is an iron wire for uniformly distributing foaming material in the seat back foaming process and guiding the foaming material to form a specific shape. The seat back foaming line needs to be bent multiple times to make its shape overall close to the shape of the seat. In the prior art, the seat back foaming line needs to be bent manually, which has the problems of low bending efficiency, low precision and easy to make mistakes. In view of the above technical problems, the utility model provides a seat back foaming line forming machine, which can realize automatic bending and forming of the seat back foaming line, thereby improving the processing efficiency and precision. SUMMARY

[0003] In view of the above technical problems of the prior art, the utility model aims to provide a seat back foaming line forming machine, which aims to solve the technical problem of low processing efficiency of the seat back foaming line in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A seat back foaming line forming machine, comprising a rack, a wire sleeve, a turntable and a first driving device for driving the turntable to rotate are arranged on the rack; a first support and a second support are arranged on the turntable; a through hole for the foaming line to pass through is arranged on the second support; a cutter device for cutting the foaming line is arranged on the second support; a wire twisting device is arranged on the first support, the wire twisting device comprises a core rod, a twisting needle seat rotatably connected with the core rod, a twisting needle arranged on the twisting needle seat, a second driving device for driving the core rod to move linearly reciprocatingly and a third driving device for driving the twisting needle seat to rotate.

[0006] Further, in the seat back foaming line forming machine, the core rod is arranged on a mounting seat, and the mounting seat is slidably connected with the first support.

[0007] Further, in the seat back foaming line forming machine, the cutter device comprises a cutter holder slidably connected with the second support, a cutter blade arranged on the cutter holder and a fourth driving device for driving the cutter holder to move linearly reciprocatingly.

[0008] Further, in the seat back foaming line forming machine, a sliding rail is arranged on the second support, and a sliding block connected with the sliding rail is connected with the cutter holder.

[0009] Further, the fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the tool holder.

[0010] Further, the fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the tool holder.

[0011] Further, the fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the tool holder.

[0012] Further, the fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the tool holder.

[0013] Further, the fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the tool holder.

[0014] Beneficial effects: the seat back foaming line forming machine provided by the utility model has at least the following technical benefits compared with the prior art:

[0015] (1) efficient production: automatic bending and forming and cutting of the foaming line are realized, and the production efficiency and processing quality are greatly improved.

[0016] (2) accurate processing: the ring-shaped groove of the torsion needle accurately limits the iron wire, and the bending position is accurate; the arc-shaped groove of the blade makes the cutting accurate, the shape precision of the foaming line is high, and the product quality is stable.

[0017] (3) convenient and flexible operation: the wire guide sleeve is horizontally arranged, and feeding is convenient; the rotating disc is rotatable, the bending direction can be flexibly adjusted, and diversified processing requirements can be met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the seat back foaming line forming machine. Figure 1 .

[0019] Figure 2 is a partial enlarged view of part A in the seat back foaming line forming machine. Figure 1

[0020] Figure 3 is a perspective view of the seat back foaming line forming machine. Figure 2 , the frame is not shown in the figure.

[0021] Figure 4 is a partial enlarged view of part B in the seat back foaming line forming machine. Figure 2

[0022] Figure 5 is a perspective view of the seat back foaming line forming machine. Figure 3 , the frame is not shown in the figure. ​​

[0023] Figure 6 is a perspective view of the knife holder and the fourth driving device.

[0024] Figure 7 is Figure 6 is a partial enlarged view of the middle C part.

[0025] Figure 8 is a perspective view of the lever.

[0026] Reference numerals in the drawings:

[0027] 10, frame; 11, first support; 12, second support; 120, through hole on the second support; 16, bracket; 161, tray; 19, wire sleeve;

[0028] 2, turntable; 29, first driving device;

[0029] 30, torsion pin seat; 31, mandrel; 32, torsion pin; 320, annular groove on the torsion pin; 38, mounting seat; 39, second driving device; 391, piston rod of the second driving device;

[0030] 40, knife holder; 41, blade; 410, arc-shaped groove at the blade edge; 481, first rotating shaft; 482, second rotating shaft; 491, lever driving cylinder; 4911, piston rod of the lever driving cylinder; 492, lever;

[0031] 51, sliding rail; 52, sliding block;

[0032] 9, foaming line. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and effect of the utility model more clear and definite, the utility model is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0034] Please refer to Figures 1 to 8 The utility model provides a seat back foaming line forming machine. The drawings are only used to explain the structure principle and are not proportional to the actual product. The drawings only draw the structure related to the utility model point of the present application, and some conventional structures are not specifically drawn. The "first", "second" and the like described in the text are only different naming to similar structures for the convenience of elaboration, and do not limit the present application.

[0035] Firstly, please refer to Figures 1 to 4The seat back foaming line forming machine comprises a frame 10, a wire sleeve 19, a rotating disc 2 and a first driving device 29 for driving the rotating disc to rotate are arranged on the frame; a first support 11 and a second support 12 are arranged on the rotating disc; a through hole 120 for the foaming line 9 to pass through is arranged on the second support 12; a cutter device for cutting the foaming line 9 is arranged on the second support; a wire twisting device is arranged on the first support, the wire twisting device comprises a core rod 31, a twisting needle seat 30 rotatably connected with the core rod, a twisting needle 32 arranged on the twisting needle seat, a second driving device 39 for driving the core rod to move linearly reciprocatingly and a third driving device for driving the twisting needle seat to rotate.

[0036] The third driving device is not shown in the figure, and there are various ways to realize rotation in actual application, the third driving device can realize driving the twisting needle seat to rotate (for example, an electric motor is adopted), which is not limited herein. The specific shape of the frame is not limited in the application, and the frame can effectively support each component on the frame.

[0037] The wire sleeve 19 is in a straight pipe shape, and the iron wire for manufacturing the foaming line passes through the hole of the wire sleeve. The first driving device 29 is preferably an electric motor, and the rotating disc can be driven to rotate through gear transmission or the like.

[0038] As shown in Figure 3 The core rod 31 is arranged on a mounting seat 38 which is slidingly connected with the first support 11. The second driving device 39 is preferably a pneumatic cylinder, the piston rod 391 of the pneumatic cylinder is connected with the mounting seat, and the linear reciprocating movement of the mounting seat (and the core rod, the twisting needle seat and the twisting needle arranged on the mounting seat) can be realized by the extension and retraction of the piston rod. The specific shape of the mounting seat is not limited in the application.

[0039] Please refer to Figure 5 and Figure 6 Further, the cutter device comprises a cutter holder 40 slidingly connected with the second support, a cutter blade 41 arranged on the cutter holder and a fourth driving device for driving the cutter holder to move linearly reciprocatingly. In normal processing, the cutter blade is away from the iron wire, when the bending forming is completed, the fourth driving device drives the cutter holder and the cutter blade to move towards the iron wire until the iron wire is cut off.

[0040] Here, a simple setting block is provided to realize the sliding connection between the cutter holder and the second support: a sliding rail 51 is arranged on the second support, and a sliding block 52 connected with the sliding rail is arranged on the cutter holder.

[0041] The fourth driving device has multiple implementation modes. Here, one arrangement is provided (but the actual application is not limited to this): the fourth driving device comprises a lever 492 rotatably connected with the second support and a lever driving cylinder 491; the power arm of the lever is rotatably connected with the piston rod 4911 of the lever driving cylinder, and the resistance arm of the lever is rotatably connected with the tool holder. When the piston rod of the lever driving cylinder extends, the tool holder and the blade move towards the wire; when the piston rod of the lever driving cylinder retracts, the tool holder and the blade move away from the wire.

[0042] As shown in Figure 6 and Figure 8 , the lever 492 is provided with a first rotating shaft 481 for rotatable connection with the second support, and the lever 492 is provided with a second rotating shaft 482 for rotatable connection with the tool holder.

[0043] Preferably, the above-mentioned lever is a labor-saving lever, i.e., the power arm of the lever is greater than the resistance arm. This makes the blade easily cut off the wire when the piston rod of the lever driving cylinder extends.

[0044] As shown in Figure 7 , further, an arc-shaped groove 410 is arranged at the cutting edge of the blade. By arranging the arc-shaped groove, the wire can be guided and supported when cutting off the wire, so that the wire can be more accurately cut off.

[0045] Further, the wire sleeve and the rotating disc are coaxially arranged. This arrangement makes the relative distance between the wire twisting device and the cutter device and the wire unchanged when the rotating disc rotates.

[0046] Further, the wire sleeve is horizontally arranged. This arrangement makes it more convenient to operate when the seat back foaming wire is formed.

[0047] As shown in Figure 4 , further, an annular groove 320 is arranged on the outer wall of the twisting needle. The annular groove guides and limits the wire to a certain extent, so that the wire is always located in the annular groove during the bending process and cannot jump out, thereby improving the processing quality.

[0048] Further, a bracket 16 is arranged on the machine, and a tray 161 is arranged on the bracket. The tray is used to support the bent wire.

[0049] Further, in order to realize automatic feeding of the wire, an automatic feeding mechanism (not shown in the figure) can also be arranged on the machine frame. In actual application, the automatic feeding mechanism (or called “automatic wire feeding mechanism” and the like) of the spring machine in the prior art can be used to realize the automatic feeding of the wire, and the structure thereof is not specifically shown here.

[0050] In order to facilitate understanding, the structure principle is briefly described as follows.

[0051] The iron wire is stretched out from the corresponding through hole of the second support through the lead sleeve, and then passes through the gap between the mandrel and the torsion needle. When the iron wire is fed to the predetermined position, the third driving device drives the torsion needle holder to rotate, and the torsion needle rotates around the mandrel (at this time the mandrel is stationary), so as to bend the iron wire by a certain angle.

[0052] The figure shows that the iron wire is bent around the vertical axis. If the bending direction needs to be adjusted, the first driving device is used to rotate the rotating disc by a certain angle before the iron wire is bent. For example, if the iron wire needs to be bent around the horizontal axis, the following operations can be performed: the second driving device drives the mounting seat to move away from the iron wire, so that the torsion needle and the mandrel do not interfere with the iron wire; then the rotating disc is rotated so that the mandrel is in a horizontal state, the second driving device drives the mounting seat to move close to the iron wire so that the iron wire is again located in the gap between the mandrel and the torsion needle; the third driving device drives the torsion needle holder to rotate so as to bend the iron wire by a certain angle.

[0053] During the processing, as the feeding length of the iron wire increases, the part of the iron wire that has been bent is placed on the tray. Through multiple bending of the iron wire, the iron wire and the seat are similar in overall shape. After the iron wire is bent and formed, the fourth driving device drives the knife holder to move towards the iron wire. When the blade cuts off the iron wire, the fourth driving device drives the knife holder to reset, thereby completing a working cycle.

[0054] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A seat back foam line forming machine comprising a frame, characterized by: The frame is provided with a wire sleeve, a rotating disc and a first driving device for driving the rotating disc to rotate; the rotating disc is provided with a first support and a second support; the second support is provided with a through hole for the foaming wire to pass through; the second support is provided with a cutter device for cutting the foaming wire; the first support is provided with a wire twisting device, which comprises a core rod, a twisting needle seat rotatably connected with the core rod, a twisting needle arranged on the twisting needle seat, a second driving device for driving the core rod to move linearly reciprocatingly and a third driving device for driving the twisting needle seat to rotate.

2. The seat back foam line forming machine of claim 1, wherein: The core rod is arranged on a mounting seat which is slidably connected with the first support.

3. The seat back foam line molding machine of claim 1, wherein: The cutter device comprises a cutter holder slidably connected with the second support, a blade arranged on the cutter holder and a fourth driving device for driving the cutter holder to move linearly reciprocatingly.

4. The seat back foam-in-line molding machine of claim 3, wherein: The second support is provided with a sliding rail, and the cutter holder is connected with a sliding block which is connected with the sliding rail.

5. The seat back foam-in-line molding machine of claim 3, wherein: The fourth driving device comprises a lever rotatably connected with the second support and a lever driving cylinder; a power arm of the lever is rotatably connected with a piston rod of the lever driving cylinder, and a resistance arm of the lever is rotatably connected with the cutter holder.

6. The seat back foam-in-line molding machine of claim 3, wherein: An arc-shaped groove is arranged at a cutting edge of the blade.

7. The seat back foam line molding machine of claim 1, wherein: The wire sleeve and the rotating disc are coaxially arranged.

8. The seat back foam line molding machine of claim 1, wherein: The wire sleeve is horizontally arranged.

9. The seat back foam line molding machine of claim 1, wherein: An annular groove is arranged on an outer wall of the twisting needle.

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