Shoe folding resistance testing machine capable of rapidly adjusting bending angle

Abstract

The invention discloses a shoe bending resistance testing machine capable of rapidly adjusting a bending angle, which comprises a fixed plate, a swing plate, a first clamping mechanism, a second clamping mechanism and a driving mechanism, the fixed plate is arranged on a rack, the swing plate is rotatably arranged on the rack, a toe cap is tightly pressed on the fixed plate by utilizing the first clamping mechanism, and the toe cap is tightly pressed on the second clamping mechanism by utilizing the driving mechanism. The second clamping mechanism is arranged on the swing plate, and the heel is limited on the swing plate through the second clamping mechanism; the driving mechanism provides driving force for the swinging plate; the adjustment efficiency is high, rotary motion is converted into linear motion through the gear and the rack, the other point is fastened in a follow-up mode through adjustment of one hinge point, and rapid adjustment of the angle of the swing plate is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shoe folding resistance test equipment, in particular to a shoe folding resistance test machine capable of quickly adjusting the folding angle. BACKGROUND

[0002] The folding resistance performance of footwear products is one of the core indicators for measuring their wearing durability and use reliability, and is directly related to the wearing experience of consumers and the market competitiveness of products. In order to ensure that the quality of footwear products meets the industry standards and consumer demand, the folding resistance test of footwear must be carried out strictly in accordance with the requirements of national standards (such as GB / T 3903.1-2017 "General Test Methods for Footwear - Folding Resistance Performance"), which simulates the bending state of shoes in daily wearing process, and detects the failure conditions such as cracks, damage, and glue opening of the upper, sole, and other parts after repeated bending.

[0003] In actual detection work, there are significant differences in the parameter requirements of folding resistance test for different categories and styles of shoes: for example, the bending angle of sports shoes usually needs to adapt to the large-amplitude bending requirement in sports scenarios, while the bending angle of formal leather shoes needs to match the small-amplitude bending working condition in daily walking; children's shoes have obvious differences in bending fulcrum position and angle range from adult shoes due to their small size and soft material. This requires the folding resistance test equipment to have the ability to flexibly adjust the core parameters such as bending angle and fulcrum position to meet the diversified testing needs.

[0004] However, the existing folding resistance test equipment for footwear has obvious defects in the design of the adjustment mechanism: on the one hand, the angle adjustment system of the equipment mostly adopts a multi-link linkage structure, and there is strong coupling between the two key adjustment nodes of the bending angle. When adjusting the parameters of one adjustment node, the position and angle of the other adjustment node will be directly affected, resulting in the problem of mutual interference during parameter adjustment; on the other hand, the adjustment operation requires the operator to repeatedly perform trial adjustment, measurement, and calibration to eliminate the mutual influence between the two adjustment nodes and ensure that the final bending angle accurately meets the national standard requirements.

[0005] The above defects make the parameter adjustment process of the existing equipment tedious and time-consuming. When adjusting the test parameters for each type of shoe, it often takes at least 1 hour, which seriously reduces the overall efficiency of the folding resistance test of footwear. SUMMARY

[0006] In view of the defects in the prior art, the main purpose of the present application is to overcome the shortcomings of the prior art and disclose a shoe folding angle fast-adjusting folding resistance testing machine, which comprises a fixing plate, a swing plate, a first clamping mechanism, a second clamping mechanism and a driving mechanism, the fixing plate is arranged on a rack, the swing plate is rotationally arranged on the rack, the first clamping mechanism is used to press the toe of a shoe against the fixing plate, the second clamping mechanism is arranged on the swing plate and is used to limit the heel of the shoe on the swing plate, and the driving mechanism provides driving force for the swing plate.

[0007] The driving mechanism comprises a driving gear, a driving rack, a reciprocating assembly and a speed reducer, the driving gear is fixed to the swing plate, the driving rack is arranged on the reciprocating assembly, the driving gear is engaged with the driving rack, the speed reducer provides driving force for the reciprocating assembly, and the reciprocating assembly is controlled by the speed reducer to control the reciprocating movement of the driving rack.

[0008] Further, the reciprocating assembly comprises a driving disc, a first adjusting assembly, a connecting rod, a sliding block and a driving rod, the sliding block is fixed to the rack, the driving rod is slidably connected to the sliding block, the driving disc is connected to the speed reducer, the first adjusting assembly is arranged on the driving disc, and the connecting rod is hingedly connected to the first adjusting assembly and the driving rod respectively, and the eccentric distance of the hinging point of the driving rod and the driving disc is adjusted by the first adjusting assembly.

[0009] Further, the connecting rod is connected to the driving rod through a second adjusting assembly, and the distance between the hinging point of the connecting rod and the first adjusting assembly and the driving rod is adjusted by the second adjusting assembly.

[0010] Further, the second adjusting assembly comprises a first locking nut and a connecting block, the connecting block is rotationally connected to the driving rod, a first through hole is arranged on the connecting block, the connecting rod is arranged in the first through hole, and the first locking nut is threadedly connected to the connecting rod, and the connecting rod is fixed to the connecting block by the first locking nut.

[0011] Further, four first locking nuts are arranged, and two first locking nuts are arranged on each side of the connecting block.

[0012] Further, the first adjusting assembly comprises an adjusting screw and an adjusting block, a sliding groove is arranged on the surface of the driving disc, the adjusting block is slidably arranged in the sliding groove, the adjusting screw is arranged on the driving disc, and the adjusting block is threadedly connected to the adjusting screw; the adjusting screw is controlled to rotate to drive the adjusting block to move radially, and the connecting rod is hingedly connected to the adjusting block.

[0013] Further, an adjusting scale is arranged on the driving disc, and an indicating part is arranged on the adjusting block.

[0014] Further, the rotation center of the driving disc is located at the extension of the moving direction of the driving rod.

[0015] Further, the first clamping mechanism comprises an adjusting plate, a first screw rod and a second locking nut, both ends of the adjusting plate are arranged in the sliding groove, the first screw rod is threadedly connected with the adjusting plate, a first pressing part is arranged at the lower end of the first screw rod, and a handle is arranged at the upper end of the first screw rod; the first locking nut is threadedly matched with the first screw rod, a driving rod is arranged on the first locking nut, and the first locking nut acts on the lower surface of the adjusting plate.

[0016] Further, the second clamping mechanism comprises a guide assembly, a movable plate and a pressing assembly, the movable plate is slidably connected with the guide assembly, and the pressing assembly is pressed on the heel of the shoe;

[0017] The guide assembly comprises two first guide rods arranged in parallel, the movable plate is slidably connected with the first guide rods, and the movable plate is fixed with the first guide rods by means of a first locking bolt;

[0018] The pressing assembly comprises a locking rod, a pressing rod and a third locking bolt, the locking rod is arranged on the movable plate, the pressing rod is slidably matched with the locking rod, and the third locking bolt is arranged on the pressing rod; when locked, the third locking bolt is pressed on the locking rod.

[0019] The present application has the following beneficial effects:

[0020] 1. High adjusting efficiency; the present application converts rotary motion into linear motion through a gear and a rack, adjusts one point through a hinged point, fastens the other point, and realizes rapid angle adjustment of the swing plate.

[0021] 2. Strong universality; the clamping mechanism can be adjusted to adapt to shoes of different sizes and styles through sliding, without the need of replacing clamping parts. DETAILED DESCRIPTION

[0022] Figure 1 It is a perspective structural schematic view of a shoe folding angle fast-adjusting folding angle shoe folding resistance tester of the present application;

[0023] Figure 2 It is a perspective structural schematic view of a driving mechanism;

[0024] Figure 3 It is a front view of the driving mechanism;

[0025] Figure 4 It is a perspective structural schematic view of a first clamping mechanism;

[0026] Figure 5 , Figure 6 This is a three-dimensional structural diagram of the second clamping mechanism;

[0027] Figure 7 Diagram showing how the shoe is held in place;

[0028] The attached figures are labeled as follows:

[0029] 1. Fixed plate; 2. Swinging plate; 3. First clamping mechanism; 31. Adjusting plate; 32. First screw; 33. Second locking nut; 321. First pressing part; 322. Drive plate; 331. Drive rod; 4. Second clamping mechanism; 41. Guide assembly; 42. Movable plate; 44. Pressing assembly; 411. First guide rod; 412. Connecting block; 413. First locking bolt; 441. Locking rod; 442. Pressure rod; 443. Third locking bolt; 5. Drive mechanism. 51. Drive gear, 52. Drive rack, 53. Reciprocating assembly, 531. Drive disc, 5311. Slide groove, 5312. Adjustment scale, 532. First adjustment assembly, 5321. Adjustment screw, 5322. Adjustment block, 5323. Adjustment handwheel, 533. Connecting rod, 534. Slider, 535. Drive rod, 536. Second adjustment assembly, 5361. First locking nut, 5362. Connecting block, 54. Gear motor, 6. Slide groove, 9. Frame. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] A shoe flexural endurance testing machine with rapidly adjustable bending angle, such as... Figure 1 As shown, the device includes a fixed plate 1, a swing plate 2, a first clamping mechanism 3, a second clamping mechanism 4, and a driving mechanism 5. The fixed plate 1 is mounted on the frame 9, and the swing plate 2 is rotatably mounted on the frame 9. The first clamping mechanism 3 presses the shoe toe onto the fixed plate 1, and the second clamping mechanism 4 is mounted on the swing plate 2 to restrict the shoe heel onto the swing plate 2. The driving mechanism 5 provides driving force to the swing plate.

[0032] like Figures 1-3 As shown, the drive mechanism 5 includes a drive gear 51, a drive rack 52, a reciprocating assembly 53, and a reduction motor 54. The drive gear 51 is a spur gear, and the drive gear 51 is connected to the swing plate 2 so that the swing plate 2 is driven to rotate synchronously by rotating the drive gear 51.

[0033] The driving rack 52 is a long straight rack, the length of which is adapted to the maximum swing stroke of the swing plate 2; the driving rack 52 is arranged on the reciprocating assembly 53, and the driving rack is engaged with the driving gear 51, the engagement gap is controlled to be 0.05-0.1mm, so as to avoid transmission impact, jamming, reduce the wear of the tooth surface, and prolong the service life of the components.

[0034] The reduction motor 54 is a planetary gear reduction motor, which is fixedly installed on the frame 9 and connected with the reciprocating assembly 53, and the reciprocating assembly 53 is provided with driving force by the reduction motor 54; the reciprocating assembly 53 controls the reciprocating movement of the driving rack 52.

[0035] The reciprocating assembly 53 includes a driving disc 531, a first adjusting assembly 532, a connecting rod 533, a sliding block 534 and a driving rod 535. The sliding block 534 is fixed on the frame 9 by bolts, the driving rod 535 is in a square strip structure and is slidingly connected with the sliding block 534, and the driving rod 535 is guided to move linearly by the sliding block; the driving gear 51 is fixed on the driving rod 535 by bolts; the driving disc 531 is connected with the reduction motor 54, and the driving disc 531 is driven to rotate by the reduction motor 54; the first adjusting assembly 532 is arranged on the driving disc 531, the connecting rod 533 is hingedly connected with the first adjusting assembly 532 and the driving rod 535, and the eccentric distance of the hingedly connected point of the connecting rod 533 and the driving disc 531 is adjusted by the first adjusting assembly 532.

[0036] The first adjusting assembly 532 includes an adjusting screw 5321 and an adjusting block 5322. The surface of the driving disc 531 is recessed with a sliding groove 5311, the adjusting block 5322 is slidingly arranged in the sliding groove 5311, the end of the sliding groove 5311 is provided with a connecting plate, the adjusting screw 5321 is arranged in the sliding groove 5311 along the length direction of the sliding groove 5311 and is rotatably connected with the connecting plate through bearings at both ends, and one end extends to the outside of the driving disc and is provided with an adjusting hand wheel 5323. An inner threaded hole is formed in the adjusting block 5322 and is threadedly connected with the adjusting screw 5321, and the adjusting hand wheel 5323 is rotated to drive the adjusting block 5322 to move radially along the sliding groove 5311. In order to improve the adjustment accuracy, an adjusting scale 5312 is arranged on the driving disc 531 along the sliding groove, and an indicating line is arranged on the adjusting block 5322, so that the operator can quickly read the position of the adjusting block through the indicating line to accurately preset the bending angle. The adjusting scale is marked with an angle, and the angle adjustment is completed by directly adjusting the adjusting block 5322 to a specified angle and then connecting the other end of the connecting rod 533.

[0037] In an embodiment, as Figures 1-3As shown, the connecting rod 533 is connected with the driving rod 535 through the second adjusting assembly 536, and the distance between the connecting rod 533 and the hinge point of the driving rod 535 is adjusted by the second adjusting assembly 536. Specifically, the second adjusting assembly 536 comprises a first locking nut 5361 and a connecting block 5362. The connecting block 5362 is rotatably connected with the other end of the driving rod 535 through a rotating shaft, and a first through hole is arranged on the side of the connecting block 5362, and the one end of the connecting rod 533 passes through the through hole. The first locking nut 5361 is arranged on the connecting rod 535 and is threadedly connected with the connecting rod 535. The connecting rod 535 and the connecting block 5362 are fixed by the first locking nut 5361.

[0038] In the above embodiment, as shown in Figures 1-3 The first locking nut 5361 is arranged on the connecting rod 535 and is threadedly connected with the connecting rod 535. The connecting rod 535 and the connecting block 5362 are fixed by the first locking nut 5361.

[0039] In an embodiment, as shown in Figures 1-3 The rotating center of the driving disc 531 is located at the extension of the moving direction of the driving rod 535.

[0040] As shown in Figures 1-3 The adjusting steps of the swing angle of the swing plate 2 are as follows:

[0041] In the embodiment, the driving rack 52 is arranged horizontally, so that the driving rack 52 can move horizontally and reciprocally;

[0042] The swing angle of the swing plate 2 is converted into the moving distance of the driving rack 52 by the driving gear 51 and the driving rack 52. Since the rotating center of the driving disc 531 is located at the extension of the moving direction of the driving rod 535, the connecting rod 533 and the driving rod 535 are on the same horizontal straight line, and therefore, the hinge points of the connecting rod 533 and the driving disc are two extreme points on the horizontal line.

[0043] During adjustment, the swing plate 2 is adjusted to the horizontal position, and the current position is locked. At this time, the first locking nut 5361 is released, so that the connecting rod 533 and the driving rod 535 can be freely adjusted. The driving disc 531 is rotated, so that the hinge point of the connecting rod 533 is adjusted to the left position of the horizontal line, and the position of the adjusting block 5322 is adjusted according to the scale line. After the position is adjusted, the connecting rod 533 and the connecting block 5362 are locked and fixed by the first locking nut 5361 according to the current position. Thus, the rapid adjustment of the swing angle is completed.

[0044] The hinged point of the driving disc 531 rotates from the left side of the horizontal line to the right side of the horizontal line, the range of the movement is the range of the horizontal movement of the driving rod 535, and the distance corresponding to the rotating angle of the driving gear 51 is fixed, thus, the swing angle is quickly adjusted, and the adjusting efficiency is improved.

[0045] In the above embodiment, as shown in Figures 1-3 The driving gear 51 is a sector gear. The angle scale line engraved on the rack 9 can be used to intuitively observe the current angle of the swing plate 2.

[0046] In an embodiment, as shown in Figure 1 and Figure 4 The first clamping mechanism 3 includes an adjusting plate 31 and a first screw rod 32. The two ends of the adjusting plate 31 are arranged in the sliding groove 6, and screw holes are arranged on the adjusting plate 31. The first screw rod 32 is threadedly connected with the screw holes. The lower end of the first screw rod 32 is provided with a first pressing part 321, and the upper end is provided with a driving disc 322 for driving the first screw rod 32 to rotate.

[0047] In an embodiment, as shown in Figure 1 and Figure 4 The first clamping mechanism 3 further includes a second locking nut 33. The second locking nut 33 is threadedly connected with the first screw rod 32. The second locking nut 33 is provided with a driving rod 331, and the second locking nut 33 acts on the lower surface of the adjusting plate 31. The second locking nut 33 further locks the connection between the first screw rod 32 and the adjusting plate 31, so as to ensure that the first screw rod 32 will not loosen during the test.

[0048] In an embodiment, as shown in Figure 5 and Figure 6 The second clamping mechanism 4 includes a guide assembly 41, a movable plate 42 and a pressing assembly 44. The movable plate 42 is slidably connected with the guide assembly 41. The guide assembly 41 is fixed on the swing plate 2. The movable plate 42 is slidably connected with the guide assembly 41. The pressing assembly 44 is arranged on the movable plate 42, and is used to press the heel of the shoe.

[0049] In an embodiment, as shown in Figure 5 and Figure 6 The guide assembly 41 includes two first guide rods 411 arranged in parallel. The two ends of the first guide rod 411 are provided with a connecting block 412. The movable plate 42 is slidably connected with the first guide rod 411. The first locking bolt 413 is used to fix the movable plate 42 and the first guide rod 411.

[0050] In an embodiment, as shown in Figure 5 and Figure 6As shown, the pressing assembly 44 comprises a locking rod 441, a pressing rod 442 and a third locking bolt 443, the locking rod 441 is arranged on the movable plate 42, the pressing rod 442 is in sliding fit with the locking rod 441, and the third locking bolt 443 is arranged on the pressing rod 442; when locking, the third locking bolt 443 is pressed on the locking rod 441.

[0051] Specifically, the locking rod 441 is cylindrical, one end of the pressing rod 442 is sleeved on the locking rod 441, the other end of the pressing rod 442 extends into the shoe and is pressed at the heel, after being in place, the third locking bolt 443 and the pressing rod 442 are fixed with the locking rod 441.

[0052] In use, as shown, Figures 1-7 The position of the movable plate 42 is adjusted, so that the heel of the shoe is on the movable plate 42, the front end is on the fixed plate 1, and the bending point of the shoe is located at the connection between the fixed plate 1 and the swing plate 2, the shoe head is pressed on the fixed plate 1 by the first clamping mechanism 3, and the heel of the shoe is fixed on the movable plate 42 by the second pressing assembly 44. During testing, the swing plate 2 reciprocates, thereby driving the second clamping mechanism 4 to drive the heel to reciprocate.

[0053] The above is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; if the present application is modified or replaced without departing from the spirit and scope of the present application, it should be covered in the protection scope of the claims of the present application.

Claims

1. A shoe durability testing machine for quickly adjusting a bending angle, characterized by, The utility model provides a shoe head and shoe heel pressing device, including fixed plate, swing board, first clamping mechanism, second clamping mechanism and drive mechanism, the fixed plate sets up on the frame, swing board rotates and sets up on the frame, utilizes first clamping mechanism and press tightly in fixed plate in toe, second clamping mechanism sets up on swing board, utilizes second clamping mechanism and restricts in swing board on the heel of the shoe, drive mechanism provides driving force for swing board, The drive mechanism includes a drive gear, a drive rack, a reciprocating assembly, and a speed reducer motor. The drive gear is fixed to the swing board. The drive rack is arranged on the reciprocating assembly, and the drive gear is engaged with the drive rack. The speed reducer motor provides driving force for the reciprocating assembly. The reciprocating assembly controls the reciprocating movement of the drive rack by controlling the speed reducer motor.

2. The rapid bending angle-adjustable shoe durability tester according to claim 1, characterized in that, The reciprocating assembly includes a drive disc, a first adjusting assembly, a connecting rod, a sliding block, and a drive rod. The sliding block is fixed to the frame. The drive rod is slidingly connected to the sliding block. The drive disc is connected to the speed reducer motor. The first adjusting assembly is arranged on the drive disc. The connecting rod is hingedly connected to the first adjusting assembly and the drive rod, respectively. The first adjusting assembly adjusts the eccentric distance of the hinged point between the drive rod and the drive disc.

3. The rapid conditioning shoe bending angle machine according to claim 2, wherein The connecting rod is connected to the drive rod through a second adjusting assembly. The second adjusting assembly adjusts the distance between the hinged point of the connecting rod and the first adjusting assembly and the drive rod.

4. The rapid conditioning shoe bending angle machine according to claim 3, wherein The second adjusting assembly includes a first locking nut and a connecting block. The connecting block is rotatably connected to the drive rod. The connecting block has a first through hole. The connecting rod is arranged in the first through hole. The first locking nut is threadedly connected to the connecting rod. The first locking nut fixes the connecting rod to the connecting block.

5. The rapid conditioning angle-of-deflection shoe durability tester of claim 4, wherein, There are four first locking nuts. Two first locking nuts are arranged on each side of the connecting block.

6. The rapid conditioning angle-of-deflection shoe durability tester of claim 2, wherein, The first adjusting assembly includes an adjusting screw and an adjusting block. The surface of the drive disc is recessed with a sliding groove. The adjusting block is slidingly arranged in the sliding groove. The adjusting screw is arranged on the drive disc. The adjusting block is threadedly connected to the adjusting screw. The adjusting screw is controlled to rotate to drive the adjusting block to move radially. The connecting rod is hingedly connected to the adjusting block.

7. The rapid conditioning angle-of-deflection shoe durability tester of claim 6, wherein, An adjusting scale is arranged on the drive disc. An indicating part is arranged on the adjusting block.

8. The rapid conditioning angle-of-bend shoe durability tester of claim 2, wherein, The center of rotation of the drive disc is located at the extension of the movement direction of the drive rod.

9. The rapid bending angle-adjustable shoe durability tester according to claim 1, wherein The first clamping mechanism includes an adjusting plate, a first screw, and a second locking nut. The two ends of the adjusting plate are arranged in the sliding groove. The first screw is threadedly connected to the adjusting plate. The lower end of the first screw is provided with a first pressing part, and the upper end is provided with a handle. The first locking nut is threadedly connected to the first screw. The first locking nut is provided with a drive rod. The first locking nut acts on the lower surface of the adjusting plate.

10. The rapid bending angle-adjustable shoe durability tester according to claim 1, wherein The second clamping mechanism includes a guide assembly, a movable plate, and a pressing assembly. The movable plate is slidingly connected to the guide assembly. The pressing assembly is pressed against the heel of the shoe. The guiding assembly comprises two first guide rods arranged in parallel, the movable plate is slidably connected with the first guide rods, and the movable plate is fixed with the first guide rods by using first locking bolts; The pressing assembly comprises a locking rod, a pressing rod and a third locking bolt, the locking rod is arranged on the movable plate, the pressing rod is slidably connected with the locking rod, and the third locking bolt is arranged on the pressing rod; when locked, the third locking bolt is pressed on the locking rod.

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