Arc rolling machine for setting radian of seat backrest

Abstract

The arc rolling machine comprises a rack, a platen, a shaping template, a first jacking mechanism, a second jacking mechanism, supporting plates and an extrusion assembly, the supporting plates comprise the first supporting plate and the second supporting plate, the first jacking mechanism drives the first supporting plate, the second jacking mechanism drives the second supporting plate, and a fixing plate rotates with a rotating shaft as the axis; the extrusion assemblies comprise the first extrusion assembly and the second extrusion assembly, the first extrusion assembly and the second extrusion assembly are each provided with a third jacking mechanism and an extrusion wheel, and the third jacking mechanisms push the extrusion wheels to move; through the action of the first jacking mechanism, the second jacking mechanism, the third jacking mechanism, the extrusion wheel and the shaping template and execution of actions such as jacking and push-pull, bending operation of a backrest and a curled edge is achieved, radian of the backrest and the curled edge is achieved, surface transition is smooth when the curled edge is bent, the overall flatness is good, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to an arc rolling machine for shaping the arc of a seat back. Background Art

[0002] Seats are common objects, and there are many types and styles of seats, which are used in different occasions and environments, such as: outdoors, on the beach, and at the seaside. Most seats are made of metal that will not rust to ensure the stability, service life and convenience of the seat. In the production process of these metal seats, some of the seat backs will be designed with an arc to increase the comfort when sitting through the arc of the backrest; in the production process of some seat backs, in order to ensure the beauty and integrity of the backrest, the top of the backrest is usually designed or processed with a curling edge, and then the backrest is bent or shaped as a whole; however, through existing technical means and existing equipment, when the backrest is bent and shaped as a whole, the transition at the curling edge of the backrest is not smooth, and some positions are squeezed and bulges appear, making the curling edge as a whole not smooth, thereby affecting the overall beauty of the backrest and the seat. In order to solve the problems caused by the arc processing of the backrest and the curling edge in the bending machine, it is necessary to develop a curling machine for the arc shaping of the seat backrest. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a seat back curvature shaping machine which is easy to use, simple to operate, has good stability and novel structure, and can meet the bending and curvature processing needs of the seat back and the curling edge. The overall transition of the curling edge after bending is smooth and there will be no protrusions or recesses, thereby improving the production quality of the backrest. The seat back curvature shaping machine is practical and widely used.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A bending machine for shaping the curvature of a seat back, comprising a frame, a table, a shaping template, a lifting mechanism 1, a lifting mechanism 2, a support plate and an extrusion assembly, wherein the table is mounted on the upper end of the frame, the shaping template is mounted on the table, the support plate comprises a support plate 1 and a support plate 2, the support plate 1 and the support plate 2 are arranged in parallel, a fixed plate is mounted on one end of the support plate 2, a rotating shaft is arranged on the table, one end of the fixed plate and the support plate 1 are movably connected to the rotating shaft, and the support plate 1 is arranged on the upper end of the fixed plate; the lifting mechanism 1, Lifting mechanism 2 is installed on the frame, one end of lifting mechanism 1 is movably connected with pallet 1, one end of lifting mechanism 2 is movably connected with pallet 2, lifting mechanism 1 drives pallet 1, lifting mechanism 2 drives pallet 2, and the fixed plate rotates with the rotating shaft as the axis; the extrusion assembly includes extrusion assembly 1 and extrusion assembly 2, extrusion assembly 1 is installed on pallet 1, extrusion assembly 2 is installed on pallet 2, and both extrusion assembly 1 and extrusion assembly 2 are provided with lifting mechanism 3 and extrusion wheel, and lifting mechanism 3 drives the extrusion wheel to move.

[0006] The present invention realizes the bending operation of the backrest and the curling edge through the functions of the first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the extrusion wheel and the shaping template, and the execution of the actions of lifting, pushing and pulling, etc., realizes the curvature of the backrest and the curling edge, makes the surface transition of the curling edge smooth during bending, has good overall flatness, and improves product quality.

[0007] Preferably, the extrusion component one and the extrusion component two also include a guide block, a slider, a pressure wheel mounting seat, a base and a lifting mechanism mounting seat, the slider is arranged on the guide block, the pressure wheel mounting seat is mounted on the slider, the extrusion wheel is mounted on the pressure wheel mounting seat, the lifting mechanism mounting seat is fixed on the base, and the lifting mechanism three is mounted on the lifting mechanism mounting seat, the telescopic end of the lifting mechanism three is connected with a connecting piece one, one side of the pressure wheel mounting seat is connected with an adjusting bolt, a connecting piece two is provided between the adjusting bolt and the connecting piece one, the lifting mechanism three, the connecting piece one, the connecting piece two, the adjusting bolt, and the pressure wheel mounting seat are connected in sequence, the connecting piece one is movably connected to the lifting mechanism mounting seat, and the lifting mechanism three pushes or pulls the connecting piece two and the adjusting bolt and the pressure wheel mounting seat to move through the connecting piece one.

[0008] This arrangement, through the action of lifting mechanism three, connecting piece one, connecting piece two, adjusting screw, guide block, slider and extrusion wheel, realizes the continuous extrusion action of the extrusion wheel on the curling edge and the backrest, thereby realizing the bending operation of the curling edge and the backrest, and realizing the shaping of the curvature of the backrest and the curling edge.

[0009] Preferably, the extrusion component one and the extrusion component two are arranged in parallel.

[0010] This arrangement facilitates better completion of the bending operation of the backrest and the rolled edge, realizes the synchronization of the actions, and at the same time meets the actual needs of the backrest and the rolled edge bending.

[0011] Preferably, bracket one and bracket two are respectively provided on both sides of the frame, and bracket one and bracket two are installed at different heights on the frame. Lifting mechanism one and bracket one, as well as lifting mechanism two and bracket two are movably connected; a connecting rod mechanism is formed between lifting mechanism one, bracket one and support plate one; a connecting rod mechanism is formed between lifting mechanism two, bracket two, support plate two and the fixed plate.

[0012] This arrangement completes the installation and fixation of the jacking mechanism 1 and the jacking mechanism 2 through the functions of the bracket 1 and the bracket 2, and realizes the curling of the extruded wheel pair and the gradual bending of the backrest from the middle to both sides through the design of the connecting rod mechanism, thereby ensuring the consistency of the bending curvature.

[0013] Preferably, the extrusion assembly 1 and the extrusion assembly 2 move synchronously from the middle to both sides when working.

[0014] This arrangement ensures the consistency of the curvature of the rolled edge and both sides of the backrest, making the backrest more beautiful as a whole and preventing uneven quality.

[0015] Preferably, a limiting guide groove is provided on the extrusion wheel.

[0016] This arrangement realizes the limitation of the curling edge and the backrest through the limiting guide groove, facilitates the cooperation between the curling edge and the extrusion wheel, and at the same time facilitates the extrusion wheel to extrude and bend the curling edge and the backrest, ensuring the smooth transition of the curvature when the backrest and the curling edge are bent.

[0017] Preferably, an arcuate groove is provided on one side of the shaping template, and an arcuate surface is provided on one side of the arcuate groove. During operation, the backrest and the rolled edge move along the arcuate groove and the arcuate surface.

[0018] This arrangement, through the effects of the arc groove and the arc surface, realizes the shaping operation of the curvature of the curling edge and the backrest, thereby achieving the designed effect.

[0019] Preferably, a support block is provided at the upper end of the shaping template, and the support block is arranged in the middle of the shaping template. The support block is located on one side of the curved surface of the shaping template and also adopts a curved surface structure.

[0020] This arrangement supports the backrest through the action of the support block, and also increases the smoothness of the arc transition when the backrest and the curling edge are bent, making the surface smoother.

[0021] Preferably, the jacking mechanism one, the jacking mechanism two, and the jacking mechanism three move synchronously.

[0022] This arrangement ensures that the extrusion wheel always exerts a certain extrusion pressure on the curling edge and the backrest through synchronous movement, thereby achieving the bending and curvature of the curling edge and the backrest, and at the same time completing the clamping force on the backrest.

[0023] Preferably, the jacking mechanism 1, the jacking mechanism 2 and the jacking mechanism 3 are oil cylinders or air cylinders.

[0024] This arrangement allows the user to select an oil cylinder style or an air cylinder style according to the use environment of the arc rolling machine, thereby meeting the needs of different consumers.

[0025] The beneficial effects of the present invention are: easy to use, simple to operate, good stability, novel structure, and can meet the bending and curvature processing needs of the seat back and the rolled edge. The overall transition of the rolled edge after bending is smooth and there will be no protrusions or recesses, which improves the manufacturing quality of the backrest. It is practical and widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the present invention.

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the installation of the extrusion assembly of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation of the second support plate of the present invention;

[0030] Figure 4 It is a schematic diagram of the frame structure of the present invention;

[0031] Figure 5 It is a cross-sectional schematic diagram of the present invention;

[0032] Figure 6 It is a cross-sectional schematic diagram of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the shaping template of the present invention;

[0034] Figure 8 It is a schematic diagram of the backrest structure of the present invention.

[0035] Among them, 1. frame, 2. table, 3. shaping template, 4. backrest, 5. lifting mechanism 1, 6. support plate 1, 7. lifting mechanism 2, 8. support plate 2, 9. guide block, 10. slider, 11. pressure wheel mounting seat, 12. extrusion wheel, 13. base, 14. lifting mechanism mounting seat, 15. lifting mechanism 3, 16. connecting piece 1, 17. connecting piece 2, 18. adjusting screw, 19. fixing plate, 20. rotating shaft, 21. support block, 22. mounting hole, 23. arc groove, 24. arc surface, 25. bracket 1, 26. bracket 2, 27. curling. DETAILED DESCRIPTION

[0036] See also Figures 1 to 8The arc rolling machine for shaping the curvature of a seat back shown in the figure comprises a frame 1, a table 2, a shaping template 3, a lifting mechanism 1 5, a lifting mechanism 2 7, a pallet and an extrusion assembly, wherein the table 2 is mounted on the upper end of the frame 1, the shaping template 3 is mounted on the table 2, the pallet comprises a pallet 1 6 and a pallet 2 8, the pallet 1 6 and the pallet 2 8 are arranged in parallel, a fixed plate 19 is mounted on one end of the pallet 2 8, a rotating shaft 20 is provided on the table 2, the fixed plate 19 and one end of the pallet 1 6 are movably connected to the rotating shaft 20, and the pallet 1 6 is arranged at the upper end of the fixed plate 19; the lifting mechanism 1 5 and the lifting mechanism 2 7 are mounted on the frame 1, one end of the lifting mechanism 1 5 is movably connected to the pallet 1 6, one end of the lifting mechanism 2 7 is movably connected to the pallet 2 8, the lifting mechanism 1 5 drives the pallet 1 6, the lifting mechanism 2 7 drives the pallet 2 8 and the fixed plate 19 to rotate with the rotating shaft 20 as the axis.

[0037] The extrusion assembly includes an extrusion assembly 1 and an extrusion assembly 2. The extrusion assembly 1 is installed on a pallet 1 6, and the extrusion assembly 2 is installed on a pallet 2 8. Both the extrusion assembly 1 and the extrusion assembly 2 are provided with a lifting mechanism 3 15 and an extrusion wheel 12. The lifting mechanism 3 15 pushes the extrusion wheel 12 to move.

[0038] Further, the extrusion assembly 1 and the extrusion assembly 2 also include a guide block 9, a slider 10, a pressure wheel mounting seat 11, a base 13 and a lifting mechanism mounting seat 14, the slider 10 is arranged on the guide block 9, the pressure wheel mounting seat 11 is installed on the slider 10, the extrusion wheel 12 is installed on the pressure wheel mounting seat, the lifting mechanism mounting seat 14 is fixed on the base 13, the lifting mechanism 3 15 is installed on the lifting mechanism mounting seat 14, the telescopic end of the lifting mechanism 3 is connected with a connecting piece 16, the pressure wheel mounting An adjusting bolt 18 is connected to one side of the mounting seat 11, and a connecting piece 2 17 is provided between the adjusting bolt 18 and the connecting piece 1 16. The lifting mechanism 3 15, the connecting piece 1 16, the connecting piece 2 17, the adjusting bolt 18, and the pressure roller mounting seat 11 are connected in sequence. The connecting piece 1 16 is movably connected to the lifting mechanism mounting seat 14. The lifting mechanism 3 15 pushes or pulls the connecting piece 2 17 and the adjusting bolt 18, and the pressure roller mounting seat 11 to move through the connecting piece 1 16, and the slider 10 moves on the guide block 9.

[0039] Furthermore, the extrusion component 1 and the extrusion component 2 are arranged in parallel.

[0040] Furthermore, a bracket 25 and a bracket 26 are respectively provided on both sides of the frame 1, and the bracket 1 and the bracket 2 are installed at different heights on the frame. The jacking mechanism 1 5 and the bracket 1 25, and the jacking mechanism 2 7 and the bracket 2 26 are all movably connected; a connecting rod mechanism is formed between the jacking mechanism 1 5, the bracket 1 25 and the support plate 1 6; a connecting rod mechanism is formed between the jacking mechanism 2 7, the bracket 2 26 and the support plate 2 8 and the fixed plate 19.

[0041] Furthermore, the extrusion assembly 1 and the extrusion assembly 2 move synchronously from the middle to both sides when working, and the extrusion assembly 1 and the extrusion assembly 2 move following the movement of the pallet 1 and the pallet 2.

[0042] Furthermore, a limiting guide groove is provided on the extrusion wheel 12, and the structure of the limiting guide groove is consistent with the shape of the curling edge. When working, the curling edge is embedded in the limiting guide groove.

[0043] Furthermore, an arc groove 23 is provided on one side of the shaping template 3, and an arc surface 24 is provided on one side of the arc groove. When working, the backrest and the curling edge move along the arc groove and the arc surface.

[0044] Furthermore, the structure, angle, size, etc. of the arc-shaped groove and arc-shaped edge can be designed and adjusted according to the curvature of the curling edge and the backrest that needs to be bent.

[0045] Furthermore, a support block 21 is provided at the upper end of the shaping template 3. The support block 21 is arranged in the middle of the shaping template. The support block is located on one side of the curved surface of the shaping template and also adopts a curved surface structure.

[0046] Furthermore, a mounting hole 22 is provided on the shaping template, and the support block is mounted on the mounting hole by bolts.

[0047] Furthermore, the lifting mechanism 1 5, the lifting mechanism 2 6, and the lifting mechanism 3 15 move synchronously.

[0048] Furthermore, the jacking mechanism 1, the jacking mechanism 2, and the jacking mechanism 3 are oil cylinders or air cylinders.

[0049] Furthermore, bearings are provided between the fixing plate 19, the supporting plate 6 and the rotating shaft.

[0050] Furthermore, the extrusion wheel moves along the trajectory of the arc groove and the arc surface.

[0051] Furthermore, a positioning hole is provided on the table plate, and the rotating shaft is installed on the positioning hole.

[0052] Furthermore, the adjusting bolt is threadedly connected to the slider, and the distance between the connecting member 2 and the slider can be adjusted by rotating the adjusting bolt, thereby achieving control of the distance that the lifting mechanism 3 pushes the extrusion wheel, thereby facilitating the extrusion wheel to extrude the curling edge and the backrest.

[0053] Furthermore, the operation time, progress, telescopic distance, etc. of the lifting mechanism 1, the lifting mechanism 2, and the lifting mechanism 3 can be controlled by a computer program to meet the needs of different backrests and curling or bending.

[0054] Furthermore, the bracket 1 and the bracket 2 are divided into two upper and lower parts, and the lifting mechanism 1 and the lifting mechanism 2 are arranged between the upper and lower parts. This design increases the stability between the lifting mechanism 1 and the lifting mechanism 2.

[0055] When the present invention is used, the backrest is placed between the extrusion wheel and the shaping template (the support block is provided with a corresponding backrest fixing structure, such as a strong magnet or a specific clamp). At this time, the curling edge of the backrest is embedded in the limiting guide groove of the extrusion wheel; then the lifting mechanism 1, the lifting mechanism 2, and the lifting mechanism 3 are controlled to work by switches, buttons, etc., and the lifting mechanism 1 and the lifting mechanism 2 respectively pull the support plate 1 and the support plate 2 outward, and the support plate 1 and the support plate 2 drive the extrusion assembly 1 and the extrusion assembly 2 to move to both sides as a whole, and at the same time When the backrest and the curling edge are bent, the backrest and the curling edge are formed into an arc to achieve the design purpose. When the backrest and the curling edge are bent, the lifting mechanism 1, the lifting mechanism 2 and the lifting mechanism 3 are reset, and then the processed backrest can be taken away.

[0056] The arc rolling machine of the present invention is also suitable for the bending processing of some pipes, plate materials and parts.

[0057] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A bending machine for shaping the curvature of a seat back, characterized in that: It includes a frame, a table, a shaping template, a jacking mechanism 1, a jacking mechanism 2, a support plate and an extrusion assembly, wherein the table is mounted on the upper end of the frame, the shaping template is mounted on the table, the support plate includes a support plate 1 and a support plate 2, the support plate 1 and the support plate 2 are arranged in parallel, a fixed plate is mounted on one end of the support plate 2, a rotating shaft is arranged on the table, one end of the fixed plate and the support plate 1 are movably connected with the rotating shaft, and the support plate 1 is arranged on the upper end of the fixed plate; the jacking mechanism 1 and the jacking mechanism 2 are mounted on the frame, one end of the jacking mechanism 1 is movably connected with the support plate 1, one end of the jacking mechanism 2 is movably connected with the support plate 2, and the jacking mechanism 1 drives the support plate 1, the jacking mechanism 2 drives the support plate 2 and the fixed plate to rotate with the rotating shaft as the axis; The extrusion assembly comprises an extrusion assembly 1 and an extrusion assembly 2. The extrusion assembly 1 is mounted on a support plate 1, and the extrusion assembly 2 is mounted on a support plate 2. Both the extrusion assembly 1 and the extrusion assembly 2 are provided with a lifting mechanism 3 and an extrusion wheel, and the lifting mechanism 3 pushes the extrusion wheel to move.

2. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: The extrusion component one and the extrusion component two also include a guide block, a slider, a pressure wheel mounting seat, a base and a lifting mechanism mounting seat, the slider is arranged on the guide block, the pressure wheel mounting seat is mounted on the slider, the extrusion wheel is mounted on the pressure wheel mounting seat, the lifting mechanism mounting seat is fixed on the base, and the lifting mechanism three is mounted on the lifting mechanism mounting seat, the telescopic end of the lifting mechanism three is connected with a connecting piece one, one side of the pressure wheel mounting seat is connected with an adjusting bolt, a connecting piece two is arranged between the adjusting bolt and the connecting piece one, the lifting mechanism three, the connecting piece one, the connecting piece two, the adjusting bolt, and the pressure wheel mounting seat are connected in sequence, the connecting piece one is movably connected to the lifting mechanism mounting seat, and the lifting mechanism three pushes or pulls the connecting piece two and the adjusting bolt and the pressure wheel mounting seat to move through the connecting piece one.

3. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: The extrusion component 1 and the extrusion component 2 are arranged in parallel.

4. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: Bracket 1 and bracket 2 are respectively provided on both sides of the frame. Bracket 1 and bracket 2 are installed at different heights on the frame. Lifting mechanism 1 and bracket 1, as well as lifting mechanism 2 and bracket 2 are movably connected; a connecting rod mechanism is formed between lifting mechanism 1, bracket 1 and support plate 1; a connecting rod mechanism is formed between lifting mechanism 2, bracket 2, support plate 2 and fixed plate.

5. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: The extrusion assembly 1 and the extrusion assembly 2 move synchronously from the middle to both sides when working.

6. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: The extrusion wheel is provided with a limiting guide groove.

7. The arc bending machine for shaping the arc of a seat back according to claim 1, characterized in that: One side of the shaping template is provided with an arc groove, and one side of the arc groove is provided with an arc surface. When working, the backrest and the curling edge move along the arc groove and the arc surface.

8. The arc bending machine for shaping the curvature of a seat back according to claim 7, characterized in that: A support block is provided at the upper end of the shaping template, and the support block is arranged in the middle of the shaping template. The support block is located on one side of the curved surface of the shaping template and also adopts a curved surface structure.

9. The arc bending machine for shaping the curvature of a seat back according to claim 1, characterized in that: The first lifting mechanism, the second lifting mechanism and the third lifting mechanism move synchronously.

10. The arc-curving machine for shaping the curvature of a seat back according to claim 1, characterized in that: The jacking mechanism 1, the jacking mechanism 2 and the jacking mechanism 3 are oil cylinders or air cylinders.

Images