A riveting die for the automatic production of umbrella ribs

Abstract

The present invention discloses a riveting die for the automatic production of umbrella ribs. Among them, it includes a support bench, a die driving device, and a number of positioning dies. The positioning dies are slidably connected to the support bench. The die driving device is arranged on the support bench, and the die driving device drives the positioning dies to merge or separate. After adopting the above structure, when preparing to rivet the umbrella ribs, each positioning die of the die of the present invention is in a mutually separated state. Through manual operation or manipulator operation, each umbrella rib segment is placed in the corresponding positioning groove, and then the positioning dies are merged to insert the respective umbrella rib segments together and quickly align the riveting holes of each pair of mutually connected umbrella rib segments. Finally, all the aligned rivet holes are riveted at one time by a riveting machine. Compared with the prior art, the present invention greatly improves the riveting efficiency of the umbrella ribs and effectively improves the riveting quality of the umbrella ribs.

Description

Technical Field

[0001] The present invention relates to the field of umbrella rib riveting molds, and particularly to a riveting mold for the automatic production of umbrella ribs. Background Art

[0002] An umbrella, as an essential daily necessity for sunshading and rain shielding, is used very frequently in daily life. The structure of an umbrella mainly includes an umbrella handle, several groups of umbrella ribs connected to the umbrella handle, and an umbrella surface supported by the umbrella ribs. Generally, most umbrella ribs are folding umbrella ribs, and the folding umbrella ribs are mainly formed by riveting several groups of umbrella rib segments respectively.

[0003] In the prior art, the riveting technology of umbrella ribs is still relatively primitive. It mainly relies on manual operation to align the riveting holes of two umbrella rib segments, then put them into a riveting machine for riveting, and then take out the next umbrella rib segment to continue aligning the riveting holes and riveting. This method of manually aligning the riveting holes of umbrella rib segments can only align a pair of riveting holes at a time, so only one rivet can be riveted each time, resulting in a very slow speed of umbrella rib riveting; during the operation, the worker's fingers are often at risk of being injured by the riveting machine, and manual operation is prone to mistakes, producing defective products and reducing the riveting quality of umbrella ribs.

[0004] In view of this, the applicant of the present invention has conducted in-depth research on the above problems, and thus this case has been produced. Summary of the Invention

[0005] The main purpose of the present invention is to provide a riveting mold for the automatic production of umbrella ribs, which can automatically align the riveting holes of all umbrella rib segments, greatly improving the efficiency of umbrella rib riveting.

[0006] To achieve the above object, the solution of the present invention is:

[0007] A riveting mold for the automatic production of umbrella ribs, which includes a support frame, a mold driving device, and a plurality of positioning molds. The positioning molds are slidably connected to the support frame. The mold driving device is arranged on the support frame, and the mold driving device drives the positioning molds to merge or separate.

[0008] Further, the support frame is provided with a guide rail. The positioning molds are the first module, the second module, the third module, and the fourth module adjacent to each other in sequence. The second module is fixedly connected to the guide rail. The first module, the third module, and the fourth module are slidably connected to the guide rail. The mold driving device drives the first module and the fourth module to move horizontally along the direction of the guide rail.

[0009] Further, the positioning mold further includes a plurality of return springs. The second module has a first fitting surface that fits with the third module. The third module has a second fitting surface that fits with the second module. The return springs are arranged between the first fitting surface and the second fitting surface.

[0010] Further, a first accommodation groove for accommodating a return spring is provided on the first fitting surface, and a plurality of second accommodation grooves for accommodating the return spring are provided on the second fitting surface. One end of the return spring abuts against the bottom of the first accommodation groove and the other end abuts against the bottom of the second accommodation groove.

[0011] Further, a raised block is provided on the upper surface of the guide rail, and a block relief groove corresponding to the block is provided on the lower surface of the fourth module.

[0012] Further, the mold driving device is a cylinder.

[0013] Further, the positioning mold is provided with a positioning groove for fixing the umbrella rib section and a riveting through hole for making way for the riveting machine.

[0014] Further, the first module is provided with a first positioning groove, the second module is provided with a second positioning groove, a third positioning groove and a fourth positioning groove. The same ends of the second positioning groove and the third positioning groove are communicated with the first positioning groove, and the same other ends are communicated with the fourth positioning groove. The third module is provided with a fifth positioning groove, a sixth positioning groove and a seventh positioning groove. One end of the fifth positioning groove is communicated with the second positioning groove and the other end is communicated with the seventh positioning groove. The sixth positioning groove is communicated with the fourth positioning groove and the seventh positioning groove. The fourth module is provided with an eighth positioning groove, and the eighth positioning groove is communicated with the seventh positioning groove.

[0015] Further, a first riveting through hole is provided at the communication position between the first positioning groove and the second positioning groove, a second riveting through hole is provided at the communication position between the first positioning groove and the third positioning groove, a third riveting through hole is provided at the communication position between the second positioning groove and the fourth positioning groove, a fourth riveting through hole is provided at the communication position between the second positioning groove and the fifth positioning groove, a fifth riveting through hole is provided at the communication position between the third positioning groove and the fourth positioning groove, a sixth riveting through hole is provided at the communication position between the sixth positioning groove and the seventh positioning groove, and a seventh riveting through hole is provided at the communication position between the seventh positioning groove and the eighth positioning groove.

[0016] Further, the two positioning grooves connected by each riveting through hole have different groove depths.

[0017] Further, the groove depths of the fourth positioning groove and the sixth positioning groove are equal, the groove depths of the seventh positioning groove and the eighth positioning groove are equal, the groove depth of the first positioning groove is greater than the groove depths of the second positioning groove and the third positioning groove, the groove depth of the second positioning groove is greater than the groove depths of the fourth positioning groove and the fifth positioning groove, the groove depth of the seventh positioning groove is greater than the groove depths of the sixth positioning groove and the fifth positioning groove, and the groove depth of the third positioning groove is less than the groove depth of the sixth positioning groove.

[0018] Further, a first relief groove is formed in the first positioning groove, a second relief groove is formed in the second positioning groove, a third relief groove is formed in the third positioning groove, a fourth relief groove is formed in the fifth positioning groove, a fifth relief groove is formed in the sixth positioning groove, and a sixth relief groove is formed in the eighth positioning groove.

[0019] Compared with the prior art, the beneficial effects are as follows: through the separation and closing of the positioning die, the automatic cooperation of the umbrella rib segments is realized. When the positioning die is combined, all the riveting holes can be accurately aligned at one time, and then put into the riveting machine for riveting, greatly improving the riveting efficiency of the umbrella ribs. And by replacing manual operation with machinery, labor force is liberated, labor costs are reduced, the operation accuracy can be improved, the number of defective products can be reduced, and the riveting quality of the umbrella ribs can be improved. Description of the Drawings

[0020] Figure 1 is a top view of the external shape structure of the umbrella rib.

[0021] Figure 2 is a perspective view of the external shape structure of the umbrella rib.

[0022] Figure 3 is a perspective view of the external shape structure of the present invention.

[0023] Figure 4 is a perspective view of the external shape structure of the support platform frame.

[0024] Figure 5 is a top view of the external shape structure of the present invention when the mold is closed.

[0025] Figure 6 is a perspective view of the external shape structure of the present invention when the mold is opened.

[0026] Figure 7 is Figure 5 a structural sectional view in the A-A direction in

[0027] Figure 8 is a perspective view of the external shape structure of the first module.

[0028] Figure 9 is a perspective view of the external shape structure of the second module.

[0029] Figure 10 is a perspective view of the external shape structure of the third module.

[0030] Figure 11 is a perspective view of the external shape structure of the fourth module.

[0031] In the figure:

[0032] Support platform frame - 1; Mold driving device - 2; Positioning mold - 3; First module - 31;

[0033] Second module - 32; First receiving groove - 321; Third module - 33; Second receiving groove - 331;

[0034] Fourth module - 34; Block relief groove - 341; Return spring - 35; Connecting block - 36;

[0035] First positioning groove - 371; Second positioning groove - 372; Third positioning groove - 373;

[0036] Fourth positioning groove - 374; Fifth positioning groove - 375; Sixth positioning groove - 376;

[0037] Seventh positioning groove - 377; Eighth positioning groove - 378; First riveting through - hole - 381;

[0038] Second riveting through - hole - 382; Third riveting through - hole - 383; Fourth riveting through - hole - 384;

[0039] Fifth riveting through - hole - 385; Sixth riveting through - hole - 386; Seventh riveting through - hole - 387;

[0040] First relief groove - 391; Second relief groove - 392; Third relief groove - 393;

[0041] Fourth relief groove - 394; Fifth relief groove - 395; Sixth relief groove - 396; Guide rail - 4;

[0042] Guide rail body - 41; Guide rail convex edge - 42; Block - 421; First umbrella rib segment - 51;

[0043] Second umbrella rib segment - 52; Third umbrella rib segment - 53; Fourth umbrella rib segment - 54;

[0044] Fifth umbrella rib segment - 55; Sixth umbrella rib segment - 56; Insertion slot - 57. Detailed implementation mode

[0045] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0046] As Figure 3-11 shown, a riveting die for automatic production of umbrella ribs includes a support bench 1, a die driving device 2 and a plurality of positioning dies 3. The support bench 1 is fixedly arranged on the frame 1. The positioning die 3 is slidably connected to the support bench 1. The die driving device 2 is fixedly arranged on the support bench 1. The die driving device 2 drives the positioning dies 3 to merge or separate. The positioning dies 3 position and fix the umbrella rib segments. When the positioning dies 3 separate, the umbrella rib segments are placed into each positioning die 3, and then the dies are merged to insert and cooperate the umbrella rib segments with each other.

[0047] More preferably, the support stand 1 is provided with guide rails 4 which are arranged on the left and right sides of the support stand 1 and extend longitudinally. The guide rails 4 include a guide rail main body 41 for guiding the positioning die 3. The inner side surface of the guide rail main body 41 is provided with a guide rail rib 42 extending along the extending direction of the guide rail 4. The upper surface of the guide rail rib 42 abuts against the lower surface of the positioning die 3 to support the positioning die 3. The left and right side surfaces of the positioning die 3 are in contact with the inner side surfaces of the two guide rail main bodies 41 to guide the movement of the positioning die 3. After adopting the above structure, the positioning die 3 can move more smoothly.

[0048] As an embodiment of the present invention, the positioning die 3 includes a first module 31, a second module 32, a third module 33 and a fourth module 34 which are adjacent to each other in sequence. The second module 32 is fixedly connected to the guide rail 4 by bolts. The first module 31, the third module 33 and the fourth module 34 are slidably connected to the guide rail 4. There are two die driving devices 2. Connecting blocks 36 are provided on the lower surfaces of the first module 31 and the fourth module 34. The connecting blocks 36 are connected to the output ends of the die driving devices 2. When the positioning die 3 is closed, one die driving device 2 drives the first module 31 to merge towards the second module 32, and at the same time the other die driving device 2 drives the fourth module 34 to move and merge towards the third module 33, and pushes the third module 33 to merge towards the second module 32, so that the second module 32 and the third module move more smoothly.

[0049] Preferably, the positioning die 2 further includes a plurality of return springs 35. The second module 32 has a first fitting surface which fits with the third module 33. The third module 33 has a second fitting surface which fits with the second module 32. The return springs 35 are arranged between the first fitting surface and the second fitting surface.

[0050] More preferably, the first fitting surface is provided with a plurality of first receiving grooves 321 for receiving the return springs 35. The first receiving grooves 321 are perpendicular to the first fitting surface. The second fitting surface is provided with a plurality of second receiving grooves 331 for receiving the return springs 35. The second receiving grooves 331 are arranged in one-to-one correspondence with the first receiving grooves 321. The second receiving grooves 331 are perpendicular to the second fitting surface. One end of the return spring 35 abuts against the bottom of the first receiving groove 321 and the other end abuts against the bottom of the second receiving groove 331.

[0051] After adopting the above structure, when the die is separated, the die driving device 2 drives the fourth module 34 and the first module 31 to move away from the second module 32. After the third module 33 loses the abutting thrust of the fourth module 34, under the elastic force of the return spring 35, the third module 33 and the second module 32 move away from each other, so as to realize the separation and reset of the positioning die 3.

[0052] Preferably, a protruding block 421 is further provided on the upper surface of the guide rail convex edge 42 of the guide rail 4, and a block relief groove 341 corresponding to the protruding block 421 is provided on the lower surface of the fourth module 34. When the positioning die 3 is separated, the protruding block 421 is used to abut and limit the third module 33, preventing the third module 33 from being too far away from the second module 32 and causing the return spring 35 to fall out of the first receiving groove 321 and the second receiving groove 331, playing a positioning role for the third module 33. When the fourth module 34 approaches the third module 33 and closes, the block relief groove 341 provides a position for the protruding block 421, ensuring that the fourth module 34 can be normally combined and closely attached to the third module 33.

[0053] More preferably, the die driving device 2 is a cylinder, which has stronger applicability and is convenient for maintenance and replacement.

[0054] Preferably, the positioning die 3 is provided with a positioning groove for fixing the umbrella rib section and a riveting through hole for making way for the riveting mechanism 4.

[0055] As an embodiment of the present invention, as Figure 1-2 shown, the umbrella ribs riveted by the present invention are three-fold umbrella ribs, and there are six mutually riveted umbrella rib sections, and the respective umbrella rib sections are a first umbrella rib section 51, a second umbrella rib section 52, a third umbrella rib section 53, a fourth umbrella rib section 54, a fifth umbrella rib section 55, and a sixth umbrella rib section 56.

[0056] According to the above umbrella rib structure, the first module 31 is provided with a first positioning groove 371, and the first umbrella rib section 51 is placed in the first positioning groove 371; the second module 32 is provided with a second positioning groove 372, a third positioning groove 373, and a fourth positioning groove 374. The second umbrella rib section 52 is placed in the second positioning groove 372, the third umbrella rib section 53 is placed in the third positioning groove 373. The same ends of the second positioning groove 372 and the third positioning groove 373 are communicated with the first positioning groove 371, and the same other ends are communicated with the fourth positioning groove 374; the third module 33 is provided with a fifth positioning groove 375, a sixth positioning groove 376, and a seventh positioning groove 377. The fifth umbrella rib section 55 is placed in the fifth positioning groove 375, the fourth umbrella rib section 54 is placed in the sixth positioning groove 376. One end of the fifth positioning groove 375 is communicated with the second positioning groove 372 and the other end is communicated with the seventh positioning groove 377. The sixth positioning groove 376 is communicated with the fourth positioning groove 374 and the seventh positioning groove 377; the fourth module 34 is provided with an eighth positioning groove 378, and the sixth umbrella rib section 56 is placed in the eighth positioning groove 378. The eighth positioning groove 378 is communicated with the seventh positioning groove 377. After adopting the above structure, when the positioning die 3 is in a separated state, each umbrella rib section is placed in the corresponding positioning groove through a manipulator or manual operation, and then the die is combined to splice each umbrella rib section together, accelerating the splicing and alignment speed of the umbrella ribs.

[0057] Preferably, a first riveting through hole 381 is provided at the connection between the first positioning groove 371 and the second positioning groove 372, a second riveting through hole 382 is provided at the connection between the first positioning groove 371 and the third positioning groove 373, a third riveting through hole 383 is provided at the connection between the second positioning groove 372 and the fourth positioning groove 374, a fourth riveting through hole 384 is provided at the connection between the second positioning groove 372 and the fifth positioning groove 375, a fifth riveting through hole 385 is provided at the connection between the third positioning groove 373 and the fourth positioning groove 374, a sixth riveting through hole 386 is provided at the connection between the sixth positioning groove 376 and the seventh positioning groove 377, and a seventh riveting through hole 387 is provided at the connection between the seventh positioning groove 377 and the eighth positioning groove 378. The connection between the positioning grooves is the riveting point of each rib segment, and the riveting through holes provide a clearance for the riveting mechanism 4, so as to ensure that the lower mold of the riveting mechanism 4 can extend into the positioning mold 3 to rivet the rib segment.

[0058] Preferably, Figure 2 As shown, each rib segment has a plug-in groove 57 for plugging in other rib segments. Since the rib segments to be riveted to each other need to be plugged in together before being riveted to each other, the two positioning grooves connected by each riveting through hole have different groove depths. In this way, there is a depth difference between the groove depths of each connected positioning groove, so that the rib segments can be aligned and inserted into the plug-in groove 57 when the positioning molds 3 are combined, forming a state of mutual plugging.

[0059] More preferably, in the embodiment of the present invention, since the fourth positioning groove 374 and the sixth positioning groove 376 jointly fix the fourth rib segment 54 when the positioning mold 3 is combined, the groove depths of the fourth positioning groove 374 and the sixth positioning groove 376 are equal, and the seventh positioning groove 377 and the eighth positioning groove 378 jointly fix the sixth rib segment 56, so the groove depths of the seventh positioning groove 377 and the eighth positioning groove 378 are equal. The groove depth of the first positioning groove 371 is greater than the groove depths of the second positioning groove 372 and the third positioning groove 373, so that the second rib segment 52 and the third rib segment 53 are respectively inserted into the first rib segment 51 when the positioning mold 3 is combined. The groove depth of the second positioning groove 372 is greater than the groove depths of the fourth positioning groove 374 and the fifth positioning groove 375, so that the fourth rib segment 54 and the fifth rib segment 55 are respectively inserted into the second rib segment 52 when the positioning mold 3 is combined. The groove depth of the seventh positioning groove 377 is greater than the groove depths of the sixth positioning groove 376 and the fifth positioning groove 375, so that when the positioning mold 3 is combined, the fourth rib segment 54 and the fifth rib segment 55 are respectively inserted into the sixth rib segment 56. The groove depth of the third positioning groove 373 is less than the groove depth of the sixth positioning groove 376, so that when the positioning mold 3 is combined, the third rib segment 53 is inserted into the fourth rib segment 54.

[0060] Preferably, in the embodiment of the present invention, a robot can be used to clamp the rib segment and place the rib segment into the positioning mold 3. In order to provide a clearance for the robot to place the rib segment, a first clearance groove 391 is formed on the first positioning groove 371, a second clearance groove 392 is formed on the second positioning groove 372, a third clearance groove 393 is formed on the third positioning groove 373, a fourth clearance groove 394 is formed on the fifth positioning groove 375, a fifth clearance groove 395 is formed on the sixth positioning groove 376, and a sixth clearance groove 396 is formed on the eighth positioning groove 378.

[0061] The working principle of the present invention is as follows: when preparing to rivet the umbrella ribs, each positioning mold 3 is in a mutually separated state, and each umbrella rib segment is placed in a corresponding positioning groove by manual operation or robot operation, and then the positioning mold 3 is merged, each umbrella rib segment is plugged together, and the rivet holes of each pair of interconnected umbrella rib segments are quickly aligned, and finally all the aligned rivet holes are riveted at one time by a riveting machine. Compared with the prior art, the present invention greatly improves the umbrella rib riveting efficiency and effectively improves the umbrella rib riveting quality.

[0062] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A riveting die for automatic production of umbrella ribs, characterized in that, It includes a support frame, a mold driving device, and several positioning molds. The positioning molds are slidably connected to the support frame. The mold driving device is arranged on the support frame and drives the positioning molds to merge or separate. The support frame is provided with guide rails. The positioning molds are the first module, the second module, the third module, and the fourth module adjacent to each other in sequence. The second module is fixedly connected to the guide rails. The first module, the third module, and the fourth module are slidably connected to the guide rails. The mold driving device drives the first module and the fourth module to move horizontally along the direction of the guide rails. The positioning molds are provided with positioning grooves for fixing the umbrella ribs and riveting through holes for giving way to the riveting machine. The first module is provided with a first positioning groove. The second module is provided with a second positioning groove, a third positioning groove, and a fourth positioning groove. The same ends of the second positioning groove and the third positioning groove are communicated with the first positioning groove, and the same other ends are communicated with the fourth positioning groove. The third module is provided with a fifth positioning groove, a sixth positioning groove, and a seventh positioning groove. One end of the fifth positioning groove is communicated with the second positioning groove and the other end is communicated with the seventh positioning groove. The sixth positioning groove is communicated with the fourth positioning groove and the seventh positioning groove. The fourth module is provided with an eighth positioning groove, and the eighth positioning groove is communicated with the seventh positioning groove. A first riveting through hole is provided at the communication position between the first positioning groove and the second positioning groove. A second riveting through hole is provided at the communication position between the first positioning groove and the third positioning groove. A third riveting through hole is provided at the communication position between the second positioning groove and the fourth positioning groove. A fourth riveting through hole is provided at the communication position between the second positioning groove and the fifth positioning groove. A fifth riveting through hole is provided at the communication position between the third positioning groove and the fourth positioning groove. A sixth riveting through hole is provided at the communication position between the sixth positioning groove and the seventh positioning groove. A seventh riveting through hole is provided at the communication position between the seventh positioning groove and the eighth positioning groove. The two positioning grooves connected by each riveting through hole have different groove depths. The groove depths of the fourth positioning groove and the sixth positioning groove are equal.

2. The riveting die for automatic production of umbrella ribs according to claim 1, characterized in that, The positioning molds further include several reset springs. The second module has a first fitting surface that fits with the third module. The third module has a second fitting surface that fits with the second module. The reset springs are arranged between the first fitting surface and the second fitting surface.

3. The riveting die for automatic production of umbrella ribs according to claim 2, characterized in that, The first fitting surface is provided with a first receiving groove for accommodating the reset springs. The second fitting surface is provided with several second receiving grooves for accommodating the reset springs. One end of the reset spring abuts against the bottom of the first receiving groove and the other end abuts against the bottom of the second receiving groove.

4. A riveting die for automatic production of umbrella ribs according to claim 3, characterized in that, The upper surface of the guide rail is provided with an upwardly protruding block. The lower surface of the fourth module is provided with a block relief groove corresponding to the block.

5. The riveting die for automatic production of umbrella ribs according to claim 4, characterized in that, The mold driving device is a cylinder.

6. The riveting die for automatic production of umbrella ribs according to claim 1, characterized in that, The groove depths of the seventh positioning groove and the eighth positioning groove are equal. The groove depth of the first positioning groove is greater than the groove depths of the second positioning groove and the third positioning groove. The groove depth of the second positioning groove is greater than the groove depths of the fourth positioning groove and the fifth positioning groove. The groove depth of the seventh positioning groove is greater than the groove depths of the sixth positioning groove and the fifth positioning groove. The groove depth of the third positioning groove is less than the groove depth of the sixth positioning groove.

7. A riveting die for automatic production of umbrella ribs according to claim 6, characterized in that A first relief groove is formed in the first positioning groove, a second relief groove is formed in the second positioning groove, a third relief groove is formed in the third positioning groove, a fourth relief groove is formed in the fifth positioning groove, a fifth relief groove is formed in the sixth positioning groove, and a sixth relief groove is formed in the eighth positioning groove.

Images