Sofa chair fabric punching equipment

Abstract

The utility model provides sofa chair fabric punching equipment, and belongs to the technical field of sofa chair processing. Comprising a workbench, a machining groove is formed in the top of the workbench, two mounting frames are rotatably mounted on the inner wall of the machining groove, tensioning rollers are rotatably arranged in the mounting frames, a punching assembly is slidably arranged in the machining groove, a plurality of punching needles are fixed to the top of the punching assembly, and two reset springs are fixed between the bottom of the punching assembly and the inner bottom wall of the machining groove; two second hinge seats are fixed to one end of the mounting frame, connecting rods are connected between the first hinge seats and the corresponding second hinge seats in a hinged mode, a fixing frame is fixed to the top of the workbench, a hydraulic cylinder is fixed to the top of the fixing frame, a telescopic rod of the hydraulic cylinder is connected with a pressing block, and a collecting cavity is formed in the pressing block. A plurality of through holes communicated with the collecting cavity are formed in the bottom of the pressing block. The punching device can stretch and flatten the punching position of the fabric, so that the punching position is prevented from generating bumps, and the punching quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa chair processing and relates to a fabric punching device for sofa chairs. Background Art

[0002] Sofa chairs come in a variety of styles, including leather, fabric, metal, rattan, and solid wood. Unlike in the past, sofa chairs with clean lines, transparent accents, or vibrant colors are increasingly popular among young people. In the busy urban life, sofa chairs offer unlimited comfort and stylish home living. Sitting in a chair, you can let your mind wander and feel the warmth and comfort.

[0003] Among them, leather sofa chairs are mainly composed of leather products and solid wood frames, with elegant shapes. Usually, the seat and inner back of the sofa chair are made of genuine leather, while the surrounding and outer back of the sofa chair are generally made of artificial leather.

[0004] During the production process of leather sofas, the fabric needs to be punched. However, when punching holes, the existing fabric punching devices often cause unevenness at the holes in the fabric, resulting in bulges at the holes, which affects the processing quality. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology and propose a sofa chair fabric punching device to solve the technical problem mentioned in the background technology that the punching device of the existing technology cannot flatten the punched parts of the fabric, resulting in bulges easily appearing at the punched parts.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sofa chair fabric punching device, comprising:

[0008] A workbench, wherein a processing groove is formed on the top of the workbench;

[0009] Two mounting brackets, the two mounting brackets are rotatably mounted on the inner wall of the processing tank and are symmetrically arranged;

[0010] Two tensioning rollers, the two tensioning rollers are rotatably mounted on the corresponding two mounting frames respectively;

[0011] A punching assembly, the punching assembly being vertically slidably disposed in the processing groove and located between the two mounting frames, with a plurality of equally spaced punching needles fixed on the top of the punching assembly;

[0012] Two return springs, one end of each return spring is fixed to the bottom of the punching assembly, and the other end is fixed to the bottom wall of the processing groove;

[0013] Two sets of hinged seats are symmetrically fixed at both ends of the punching assembly, and each set of hinged seats includes two;

[0014] Two sets of hinged seats 2, the two sets of hinged seats 2 are respectively fixed to one end of the corresponding mounting frame, each set of hinged seats 2 includes two hinged seats, and a connecting rod is hingedly connected between each hinged seat 1 and the corresponding hinged seat 2;

[0015] A fixed frame, the fixed frame being fixed on the top of the workbench;

[0016] A hydraulic cylinder, wherein the hydraulic cylinder is fixed on the top of the fixed frame;

[0017] A pressure block, the upper end of which is fixed to the telescopic rod of the hydraulic cylinder. The hydraulic cylinder can drive the pressure block to descend and abut against the two tensioning rollers and embed into the processing groove. The pressure block has a collection chamber, and the bottom of the pressure block has a plurality of through holes for a plurality of corresponding punching needles to pass through and connect to the collection chamber.

[0018] Working principle:

[0019] When the fabric passes over the processing groove of the workbench, the lower end of the fabric is pressed against the outer walls of the two tensioning rollers, driving the hydraulic cylinder to drive the pressure block to descend and embed into the processing groove. The pressure block squeezes the two tensioning rollers downward, so that when the two tensioning rollers are relatively far away from each other, the pressure block presses the fabric against the two tensioning rollers to achieve the positioning of the fabric. The two tensioning rollers can stretch and flatten the punching parts of the fabric. The two tensioning rollers respectively drive the two mounting frames to rotate relative to each other, and the two mounting frames lift the connecting rod upward. The two mounting frames drive the punching assembly to rise through the connecting rod. The punching assembly drives several punching needles to rise, and the punching needles pass through the fabric and embed into the through holes.

[0020] The hydraulic cylinder is driven to drive the pressure block to rise. The pressure block rises to a certain height and moves outside the processing groove. Under the action of the reset spring, the reset spring pulls the punching assembly down and resets. The punching assembly drives the two mounting frames to rotate and reset through several connecting rods. The two mounting frames drive the tensioning rollers to move relatively close and reset.

[0021] The beneficial effects of the utility model are:

[0022] The utility model drives the pressure block to descend by driving the hydraulic cylinder, and the pressure block squeezes the two tensioning rollers downward, so that when the two tensioning rollers are relatively far away from each other, the pressure block presses the fabric against the two tensioning rollers to achieve the positioning of the fabric. The two tensioning rollers can stretch and flatten the punched areas of the fabric to avoid bulges and wrinkles at the punched areas, thereby ensuring the quality of the punching and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of an embodiment of the utility model;

[0024] Figure 2 It is a top view of a workbench according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of a mounting base according to an embodiment of the present utility model;

[0026] Figure 4 It is a cross-sectional view of a workbench according to an embodiment of the present utility model;

[0027] Figure 5 It is a side view of a workbench according to an embodiment of the present invention;

[0028] Figure 6 It is a front view of a workbench according to an embodiment of the present utility model;

[0029] Figure 7 It is an assembly sectional view of the flattening frame and the flattening roller according to an embodiment of the present utility model.

[0030] Explanation of the accompanying drawings: 1. Workbench; 2. Processing groove; 3. Mounting frame; 4. Tensioning roller; 5. Punching needle; 6. Return spring; 7. Articulated seat 1; 8. Articulated seat 2; 9. Connecting rod; 10. Fixed frame; 11. Hydraulic cylinder; 12. Pressure block; 13. Collecting chamber; 14. Through hole; 15. Adjusting shaft; 16. Mounting seat; 17. Connecting plate; 18. Slider; 19. Slide; 20. Block; 21. Slot; 22. Mounting plate; 23. Guide block; 24. Handle; 25. Limit block; 26. Limit slot; 27. Flattening frame; 28. Flattening roller; 29. ​​Bearing seat; 30. Flattening slot; 31. Flattening spring; 32. Vacuum cleaner; 33. Vacuum tube; 34. Arc part 1; 35. Arc part 2. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] like Figure 1 and Figure 2 As shown, a sofa chair fabric punching device includes:

[0033] A workbench 1 is provided with a processing groove 2 on the top of the workbench 1. The front and rear ends of the top of the processing groove 2 have arc-shaped portions 35. The arc-shaped portions 35 can effectively prevent the bottom of the fabric from contacting the edge of the processing groove 2 and causing wear.

[0034] Two mounting brackets 3, the two mounting brackets 3 are rotatably mounted on the inner wall of the processing tank 2 and are symmetrically arranged;

[0035] Two tensioning rollers 4, the two tensioning rollers 4 are rotatably mounted on the corresponding two mounting frames 3;

[0036] A punching assembly is vertically slidably disposed in the processing tank 2 and located between the two mounting frames 3. A plurality of equally spaced punching needles 5 are fixed on the top of the punching assembly;

[0037] Two return springs 6, one end of each return spring 6 is fixed to the bottom of the punching assembly, and the other end is fixed to the inner bottom wall of the processing groove 2;

[0038] Two sets of hinged seats 7 are symmetrically fixed at both ends of the punching assembly, and each set of hinged seats 7 includes two;

[0039] Two sets of hinged seats 2 8, two sets of hinged seats 2 8 are respectively fixed to one end of the corresponding mounting bracket 3, each set of hinged seats 2 8 includes two, each hinged seat 1 7 and the corresponding hinged seat 2 8 are hingedly connected with a connecting rod 9, when the two tensioning rollers 4 are relatively far away, the two mounting brackets 3 rotate relative to each other, the two mounting brackets 3 lift the connecting rod 9 upward, the two mounting brackets 3 drive the punching assembly to rise through the connecting rod 9, and the punching assembly drives a plurality of punching needles 5 to rise;

[0040] A fixed frame 10, wherein the fixed frame 10 is fixed on the top of the workbench 1;

[0041] A hydraulic cylinder 11 is fixed to the top of the fixed frame 10;

[0042] The pressing block 12 has an upper end fixed to the telescopic rod of the hydraulic cylinder 11. The hydraulic cylinder 11 can drive the pressing block 12 to descend and abut against the two tensioning rollers 4 and embed into the processing groove 2. The pressing block 12 has a collecting chamber 13. The bottom of the pressing block 12 has a plurality of through holes 14 for a plurality of corresponding punching needles 5 to pass through and connect to the collecting chamber 13. The front and rear ends of the bottom of the pressing block 12 have an arc-shaped portion 34. The arc-shaped portion 34 can effectively prevent the top of the fabric from contacting the edge of the pressing block 12 and causing wear.

[0043] like Figure 2 and Figure 4 As shown, the left and right ends of the mounting bracket 3 have symmetrically arranged adjustment shafts 15, and the inner wall of the processing groove 2 is provided with two circular grooves corresponding to the two adjustment shafts 15 respectively. The adjustment shafts 15 are rotatably installed in the corresponding circular grooves, and the mounting bracket 3 rotates around the circular grooves through the two adjustment shafts 15.

[0044] like Figure 1 and Figure 3As shown, the punching assembly includes a mounting seat 16 and a connecting plate 17, sliders 18 are fixed at both ends of the mounting seat 16, and a sliding groove 19 for the slider 18 to be embedded is vertically opened on the inner wall of the processing groove 2, and the upper ends of the two reset springs 6 are fixed to the bottom of the mounting seat 16 and are symmetrically arranged, and the bottom of the connecting plate 17 has a block 20, and the top of the mounting seat 16 has a slot 21 for the block 20 to be embedded. Several punching needles 5 are fixed on the top of the connecting plate 17, and the punching needles 5 can be repaired and maintained by detaching the block 20 at the bottom of the connecting plate 17 from the slot 21.

[0045] like Figure 1 、 4 As shown in Figure 5, the lower end of the pressing block 12 has a connecting port connected to the collecting chamber 13, one end of the connecting port passes through the side wall of the pressing block 12 and is connected to the outside world, and a mounting plate 22 is slidingly provided on the inner wall of the connecting port, and the mounting plate 22 can block the connecting port, and a number of the through holes 14 are provided on the mounting plate 22, and guide blocks 23 are fixed at both ends of the mounting plate 22. Two guide grooves for embedding the guide blocks 23 are provided on the inner wall of the connecting port, and one end of the guide groove passes through the side wall of the pressing block 12 and is connected to the outside world, and a handle 24 located outside the pressing block 12 is fixed to one end of the mounting plate 22. The mounting plate 22 can be pulled out by pulling the handle 24, and the mounting plate 22 can be separated from the pressing block 12.

[0046] like Figure 1 and Figure 3 As shown, the two ends of the pressing block 12 are fixed with limiting blocks 25 , and the inner wall of the fixing frame 10 is vertically opened with limiting grooves 26 for the limiting blocks 25 to be embedded.

[0047] like Figure 1 and Figure 7 As shown, symmetrically arranged flattening frames 27 are fixed at the front and rear ends of the top of the workbench 1, and the fixed frame 10 is located between the two flattening frames 27. A flattening roller 28 is rotatably provided in each of the flattening frames 27, and the rotating shafts at both ends of the flattening roller 28 are connected to bearing seats 29. A flattening groove 30 for the bearing seat 29 to be embedded is vertically opened on the inner side of the flattening frame 27, and a flattening spring 31 is fixed between the top of the bearing seat 29 and the inner top wall of the flattening groove 30. When the fabric passes between the flattening roller 28 and the workbench 1, the fabric exerts an upward force on the flattening roller 28, and the flattening roller 28 drives the bearing seat 29 to move upward along the flattening groove 30. The bearing seat 29 compresses the flattening spring 31. The flattening spring 31 is compressed and has a certain elastic potential energy. The flattening spring 31 exerts a downward extrusion force on the flattening roller 28 through the bearing seat 29, and the flattening roller 28 flattens the fabric.

[0048] like Figure 1 、 Figure 4 and Figure 5As shown, a vacuum cleaner 32 is fixed on the top of the workbench 1, and the vacuum cleaner 32 is connected to a dust suction pipe 33. One end of the dust suction pipe 33 passes through the side wall of the pressing block 12 and extends into the collection chamber 13. By starting the vacuum cleaner 32, the vacuum cleaner 32 can collect fabric debris in the collection chamber 13 through the dust suction pipe 33.

[0049] The specific operation mode of the utility model is as follows:

[0050] When the fabric needs to be processed, the fabric to be processed is passed between the pressing block 12 and the tensioning roller 4, and the hydraulic cylinder 11 is driven to drive the pressing block 12 to descend and embed into the processing groove 2. The pressing block 12 squeezes the two tensioning rollers 4 downward, so that when the two tensioning rollers 4 are relatively far apart, the pressing block 12 presses the fabric on the two tensioning rollers 4 to achieve the positioning of the fabric, and the two tensioning rollers 4 stretch and flatten the punching parts of the fabric. The two tensioning rollers 4 respectively drive the two mounting brackets 3 to rotate relative to each other, and the two mounting brackets 3 lift the connecting rod 9 upward. The two mounting brackets 3 drive the mounting seat 16 to rise along the slide 19 through the connecting rod 9. While the mounting seat 16 rises, the return spring 6 is stretched. The return spring 6 has a certain elastic potential energy under the stretching, and the mounting seat 16 drives several punching needles 5 to rise through the connecting plate 17. The punching needles 5 pass through the fabric and are embedded in the through hole 14, and the vacuum cleaner 32 is started. The vacuum cleaner 32 collects the fabric debris in the collecting chamber 13 through the dust suction pipe 33;

[0051] The hydraulic cylinder 11 is driven to drive the pressure block 12 to rise. The pressure block 12 rises to a certain height and moves outside the processing groove 2. Under the action of the reset spring 6, the reset spring 6 pulls the mounting seat 16 down and resets. The mounting seat 16 drives several punching needles 5 to descend through the connecting plate 17. At the same time as the mounting seat 16 descends, it drives the two mounting frames 3 to rotate and reset through several connecting rods 9. The two mounting frames 3 drive the tensioning roller 4 to move relatively close and reset.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sofa chair fabric punching device, characterized in that: include: A workbench (1), wherein a processing groove (2) is formed on the top of the workbench (1); Two mounting frames (3), the two mounting frames (3) being rotatably mounted on the inner wall of the processing tank (2) and symmetrically arranged; Two tensioning rollers (4), the two tensioning rollers (4) being rotatably mounted on the corresponding two mounting frames (3); A punching assembly, the punching assembly is vertically slidably arranged in the processing groove (2) and is located between the two mounting frames (3), and a plurality of punching needles (5) distributed at equal intervals are fixed on the top of the punching assembly; Two return springs (6), one end of each return spring (6) is fixed to the bottom of the punching assembly, and the other end is fixed to the inner bottom wall of the processing groove (2); Two sets of hinged seats (7), the two sets of hinged seats (7) are symmetrically fixed at two ends of the punching assembly, and each set of hinged seats (7) includes two; Two groups of hinged seats (8), the two groups of hinged seats (8) are respectively fixed to one end of the corresponding mounting frame (3), each group of hinged seats (8) includes two hinged seats, and a connecting rod (9) is hingedly connected between each hinged seat (7) and the corresponding hinged seat (8); A fixed frame (10), wherein the fixed frame (10) is fixed on the top of the workbench (1); A hydraulic cylinder (11), wherein the hydraulic cylinder is fixed on the top of the fixed frame (10); A pressing block (12), the upper end of which is fixed to the telescopic rod of the hydraulic cylinder (11), the hydraulic cylinder (11) can drive the pressing block (12) to descend so as to abut against the two tensioning rollers (4) and be embedded in the processing groove (2), the pressing block (12) has a collecting chamber (13) therein, and the bottom of the pressing block (12) has a plurality of through holes (14) through which a plurality of corresponding punching needles (5) can pass and connect to the collecting chamber (13).

2. The sofa chair fabric punching device according to claim 1, characterized in that: The left and right ends of the mounting frame (3) are provided with symmetrically arranged adjustment shafts (15); the inner wall of the processing groove (2) is provided with two circular grooves respectively corresponding to the two adjustment shafts (15); the adjustment shafts (15) are rotatably mounted in the corresponding circular grooves.

3. The sofa chair fabric punching device according to claim 1, characterized in that: The punching assembly comprises a mounting seat (16) and a connecting plate (17), sliders (18) are fixed at both ends of the mounting seat (16), a sliding groove (19) for the slider (18) to be embedded is vertically opened on the inner wall of the processing groove (2), the upper ends of the two return springs (6) are fixed to the bottom of the mounting seat (16) and are symmetrically arranged, the bottom of the connecting plate (17) has a clamping block (20), the top of the mounting seat (16) has a clamping groove (21) for the clamping block (20) to be embedded, a plurality of punching needles (5) are fixed on the top of the connecting plate (17), and two groups of hinged seats (7) are symmetrically fixed at both ends of the mounting seat (16).

4. The sofa chair fabric punching device according to claim 1, characterized in that: The lower end of the pressing block (12) has a connection port connected to the collecting chamber (13), one end of the connection port penetrates the side wall of the pressing block (12) and is connected to the outside, a mounting plate (22) is slidably provided on the inner wall of the connection port, and the mounting plate (22) can block the connection port, a plurality of through holes (14) are provided on the mounting plate (22), guide blocks (23) are fixed at both ends of the mounting plate (22), two guide grooves for the guide blocks (23) to be embedded are provided on the inner wall of the connection port, one end of the guide groove penetrates the side wall of the pressing block (12) and is connected to the outside, and a handle (24) located outside the pressing block (12) is fixed at one end of the mounting plate (22).

5. The sofa chair fabric punching device according to claim 1, characterized in that: Limiting blocks (25) are fixed at both ends of the pressing block (12), and limiting grooves (26) for the limiting blocks (25) to be embedded are vertically opened on the inner wall of the fixing frame (10).

6. The sofa chair fabric punching device according to claim 1, characterized in that: The workbench (1) has symmetrically arranged flattening frames (27) fixed at the front and rear ends of the top, the fixed frame (10) is located between the two flattening frames (27), each of the flattening frames (27) has a flattening roller (28) rotatably arranged therein, the rotating shafts at both ends of the flattening roller (28) are connected to bearing seats (29), a flattening groove (30) for the bearing seat (29) to be embedded is vertically opened on the inner side of the flattening frame (27), and a flattening spring (31) is fixed between the top of the bearing seat (29) and the inner top wall of the flattening groove (30).

7. The sofa chair fabric punching device according to claim 1, characterized in that: A dust collector (32) is fixed on the top of the workbench (1), and the dust collector (32) is connected to a dust suction pipe (33), and one end of the dust suction pipe (33) passes through the side wall of the pressing block (12) and extends into the collection chamber (13).

8. The sofa chair fabric punching device according to claim 1, characterized in that: The pressing block (12) has an arc-shaped portion 1 (34) at both ends of the bottom and front, and the processing groove (2) has an arc-shaped portion 2 (35) at both ends of the top and front.

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