A bending testing machine for shoe production

Abstract

The utility model relates to the technical field of footwear bending test, concretely to a kind of bending test machine for footwear production, including bending frame, the both sides of bending frame are provided with first electric push rod, the upper and lower ends of bending frame are provided with second electric push rod, the both sides of the inner wall of bending frame are provided with shoe fixing assembly, the upper and lower ends of the inner wall of bending frame are provided with bending assembly, the both sides of the inner wall of bending frame are movably connected with shoe fixing frame by first electric push rod, the inside center of shoe fixing frame is provided with shoe fixing cover.The utility model is equipped with bending frame, first electric push rod, shoe fixing frame, shoe fixing cover, retraction contact, damping rubber strip, lifting air bag, limiting slide block, limiting slide rail, overhead frame and mounting seat, so that the equipment can be more adapted to the shoe body natural fixation operation of bending test for footwear production, in actual use process, staff first puts the test shoe needing to be bent into the inside center of bending frame.

Description

Technical Field

[0001] This utility model relates to the field of footwear bending testing technology, specifically a bending testing machine for footwear production. Background Technology

[0002] The shoe bending test is an instrument used to test the bending resistance of finished shoes and soles. This equipment simulates the bending state of a human foot when walking or running, continuously bending the shoe at a fixed angle, frequency, and time to test its fatigue resistance and service life. The test results are determined by observing sole breakage, upper glue separation, and cracks in the upper. This equipment is widely used by shoe manufacturers to inspect shoe quality and sole crack resistance.

[0003] For example, patent document CN219552135U discloses a sports shoe bending test mechanism. It includes a support base with multiple suction cups below it. The support base is connected to a top plate via a vertical support plate. A servo motor is located inside the top plate, and the output shaft of the servo motor is connected to a one-way screw rod. A movable block is fitted onto the one-way screw rod, and an electro-hydraulic push rod is fixed below the movable block. The electro-hydraulic push rod is connected to multiple bending test blocks via a movable horizontal plate. Multiple fixing rods are fixed above the support base, and foot models are connected to the fixing rods via fixing bolts. A rotating ring is fixed to one side of each fixing bolt. The foot model is fitted with the sports shoe body. A camera is connected to the top plate via an elastic column. Multiple supporting horizontal plates are fixed to one side of the support base, and a sample storage box is located above the supporting horizontal plates. This utility model provides a sports shoe bending test mechanism that can test shoes of different sizes and models, with a simple structure and convenient operation.

[0004] However, when this structure is used for bending tests in actual footwear production, due to its structural limitations, it can only fix the two ends of the test shoe with clamps and then complete the bending test by squeezing from above and below. At this time, the two ends of the shoe are clamped and cannot be naturally extended or retracted, so it cannot accurately reflect the bending data of the shoe. At the same time, the position of the top and bottom pressure cannot distribute the force on the shoe body more evenly, resulting in poor bending deformation effect and failing to meet the needs of daily use. Therefore, it is urgent to design a bending test machine for footwear production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a bending test machine for footwear production, to solve the problem mentioned in the background art that, due to its own structural limitations, the existing structure often can only fix the two ends of the test shoe with clamps and then complete the bending test by squeezing from above and below. At this time, the two ends of the shoe are clamped and cannot be naturally extended or retracted, so it cannot truly reflect the bending data of the shoe. At the same time, the position of the upper and lower pressure cannot distribute the force on the shoe body more evenly, resulting in poor bending deformation effect and failing to meet the needs of daily use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending test machine for footwear production, comprising a bending frame, a first electric push rod provided on both sides of the bending frame, a second electric push rod provided at the upper and lower ends of the bending frame, a shoe fixing assembly provided on both sides of the inner wall of the bending frame, and a bending assembly provided at the upper and lower ends of the inner wall of the bending frame.

[0007] The shoe-fixing assembly includes a shoe-fixing frame, and the shoe-fixing frame is movably connected to both sides of the inner wall of the bending frame via a first electric push rod. A shoe-fixing cover is provided in the center of the inner wall of the shoe-fixing frame.

[0008] The bending assembly includes a bending arc seat. The upper and lower ends of the inner wall of the bending frame are movably connected to the bending arc seat via a second electric push rod. The two ends of the bending arc seat are provided with mating rubber pads.

[0009] Preferably, the two sets of bent arc seats are provided with universal joints at their ends that are far apart from each other, and the universal joints are connected to one end of the second electric push rod. The inner wall center of the bent arc seat is provided with a fitting inner pad.

[0010] Preferably, a retractable contact is provided at the center of the inner wall of the shoe cover, and damping strips are provided on the four sides of the inner wall of the shoe cover.

[0011] Preferably, the upper and lower ends of the shoe cover are provided with lifting airbags, and the shoe cover moves up and down inside the shoe frame through the lifting airbags.

[0012] Preferably, the upper and lower ends of the fixed shoe rack are fixedly connected to limit sliders, and the upper and lower ends of the inner wall of the bending frame are connected to limit slide rails, and the limit slide rails and limit sliders are adapted to each other.

[0013] Preferably, the bottom end of the bending frame is fixedly connected to an overhead frame, and the bottom end of the overhead frame is fixedly connected to a mounting base.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This bending test machine for footwear production, through its bending frame, first electric push rod, shoe frame, shoe cover, shrink contact, damping strip, lifting airbag, limit slider, limit rail, overhead frame, and mounting base, allows the equipment to perform a more suitable natural fixation operation for the shoe body during bending tests in footwear production. In actual use, the operator first places the shoe to be bent into the center of the bending frame, aligning both ends with the shoe cover in the center of the shoe frame. Then, activating the first electric push rod pushes the shoe frame from both sides towards the center within the bending frame. The limit sliders at the upper and lower ends of the shoe frame... The shoe is positioned and slid stably by the upper and lower limit rails on the inner wall of the bending frame. Then, the shoe cover is used to cover the two ends of the test. The shrinking contact and damping strip inside the shoe cover work together to provide damping and top-fitting operations for one end and four sides of the test, respectively. This is the initial quick cover-fitting and fixing operation for the test shoe. At the same time, when the test is carried out with the center upper and lower pressure bending test, the shoe cover can also work with the upper and lower lifting airbags to make appropriate up and down adjustments inside the shoe frame, so as to more adapt to the overall bending operation of the shoe body, better reflect the quality of the shoe body, and demonstrate the practicality of the equipment design.

[0016] This bending test machine for footwear production enhances overall usability through its bending frame, second electric push rod, bending arc seat, mating pad, universal joint, and inner fitting pad. During daily use, operators can activate the second electric push rod at both ends of the bending frame, causing the bending arc seats inside the frame to align precisely with the center of the shoe. The mating pads at both ends of the bending arc seat then precisely align, enabling the top-bending operation. During bending, the inner fitting pad on the inner wall of the bending arc seat adheres to the shoe body, providing protection. Simultaneously, the universal joint at the connection between the bending arc seat and the second electric push rod allows for free angle adjustment, ensuring stability during bending tests in footwear production and demonstrating the comprehensive design of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the shoe rack of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the bent arc seat of this utility model;

[0020] Figure 4 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Bending frame; 2. First electric push rod; 3. Second electric push rod; 4. Fixed shoe rack; 5. Fixed shoe cover; 6. Bending arc seat; 7. Butt joint rubber pad; 8. Universal joint; 9. Fitting inner pad; 10. Retraction contact; 11. Damping rubber strip; 12. Lifting airbag; 13. Limiting slider; 14. Limiting slide rail; 15. Overhead frame; 16. Mounting base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 One embodiment provided by this utility model:

[0024] A bending test machine for footwear production includes a bending frame 1, with first electric push rods 2 on both sides of the bending frame 1, and second electric push rods 3 at the top and bottom ends of the bending frame 1. Shoe-fixing components are provided on both sides of the inner wall of the bending frame 1, and bending components are provided at the top and bottom ends of the inner wall of the bending frame 1. Shoe-fixing frames 4 are movably connected to both sides of the inner wall of the bending frame 1 via the first electric push rods 2. A shoe-fixing cover 5 is provided at the center of the inner wall of the shoe-fixing frame 4. Limiting sliders 13 are fixedly connected to the top and bottom ends of the shoe-fixing frame 4. The inner wall of the bending frame 1... The lower two ends are connected to the limiting slide rails 14, which are adapted to the limiting sliders 13. The bottom end of the bending frame 1 is fixedly connected to the overhead frame 15, and the bottom end of the overhead frame 15 is fixedly connected to the mounting base 16. When the first electric push rod 2 is started, the shoe racks 4 on both sides can be pushed towards the center inside the bending frame 1. The limiting sliders 13 at the upper and lower ends of the shoe rack 4 are limited by the upper and lower limiting slide rails 14 on the inner wall of the bending frame 1, and perform stable positioning and sliding. Then the shoe cover 5 covers the two ends of the test.

[0025] The bending assembly includes a bending arc seat 6. The bending arc seat 6 is movably connected to the upper and lower ends of the inner wall of the bending frame 1 via a second electric push rod 3. The two ends of the bending arc seat 6 are provided with mating rubber pads 7. The two sets of bending arc seats 6 are provided with universal joints 8 at their upper and lower ends that are far apart from each other. The universal joints 8 are connected to one end of the second electric push rod 3. The inner wall of the bending arc seat 6 is provided with a fitting inner pad 9. The inner center of the shoe cover 5 is provided with a retraction contact 10. The four sides of the inner wall of the shoe cover 5 are provided with damping rubber strips 11. The upper and lower ends of the shoe cover 5 are provided with lifting airbags 12. The shoe cover 5 moves up and down inside the shoe frame 4 through the lifting airbags 12, which activates the second electric push rods 3 at the upper and lower ends of the bending frame 1, so that the upper and lower bending arc seats 6 inside the bending frame 1 are aligned with the upper and lower center positions of the test shoe. The mating rubber pads 7 at both ends of the bending arc seat 6 are precisely aligned, and then the top bending operation is realized.

[0026] Working principle: During use, the user first places the test shoe to be bent into the center of the bending frame 1, with both ends aligned with the shoe cover 5 at the center of the shoe rack 4. Then, the first electric push rod 2 is activated, pushing the shoe racks 4 on both sides towards the center inside the bending frame 1. The limiting sliders 13 at the upper and lower ends of the shoe rack 4 are fixed by the upper and lower limiting slide rails 14 on the inner wall of the bending frame 1, ensuring stable positioning and sliding. The shoe cover 5 then covers the two ends of the test shoe. The retractable contact 10 and damping strip 11 inside the shoe cover 5 work together to provide damping and support to one end and the four sides of the test shoe, respectively, for initial quick and secure mounting. Simultaneously, when the test involves bending with upward and downward pressure on the center, the shoe cover 5 can also coordinate with the upward and downward lifting airbags. 12. The shoe frame 4 is adjusted up and down to better adapt to the overall bending operation of the shoe body, thus better reflecting the quality of the shoe body. In daily use, the staff can activate the second electric push rods 3 at the upper and lower ends of the bending frame 1, so that the bending arc seats 6 inside the bending frame 1 are aligned with the upper and lower center positions of the test shoe. The mating pads 7 at both ends of the bending arc seats 6 are precisely aligned, and then the top bending operation is realized. During the bending process, the inner pad 9 of the inner wall of the bending arc seat 6 is in contact with the shoe body to provide protection. At the same time, the universal joint 8 at the connection between the bending arc seat 6 and the second electric push rod 3 can be freely adjusted to ensure the stability of the bending test in shoe production. The above is the complete working principle of this utility model.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bending test machine for footwear production, comprising a bending frame (1), characterized in that: The bending frame (1) is provided with a first electric push rod (2) on both sides, and a second electric push rod (3) is provided at the upper and lower ends of the bending frame (1). The bending frame (1) is provided with a shoe fixing assembly on both sides of the inner wall, and a bending assembly is provided at the upper and lower ends of the inner wall. The shoe fixing assembly includes a shoe fixing frame (4), and the shoe fixing frame (4) is movably connected to both sides of the inner wall of the bending frame (1) via a first electric push rod (2). A shoe fixing cover (5) is provided in the center of the inside of the shoe fixing frame (4). The bending assembly includes a bending arc seat (6). The upper and lower ends of the inner wall of the bending frame (1) are movably connected to the bending arc seat (6) via a second electric push rod (3). The two ends of the bending arc seat (6) are provided with mating rubber pads (7).

2. The bending test machine for footwear production according to claim 1, characterized in that: Two sets of bent arc seats (6) are provided with universal joints (8) at their ends that are far apart from each other. The universal joints (8) are connected to one end of the second electric push rod (3). The inner wall center of the bent arc seat (6) is provided with a fitting inner pad (9).

3. The bending test machine for footwear production according to claim 1, characterized in that: The shoe cover (5) has a retractable contact (10) at its center and damping strips (11) on all four sides of its inner wall.

4. The bending test machine for footwear production according to claim 1, characterized in that: The shoe cover (5) is provided with lifting airbags (12) at both the upper and lower ends, and the shoe cover (5) moves up and down inside the shoe rack (4) through the lifting airbags (12).

5. A bending tester for footwear production according to claim 1, characterized in that: The upper and lower ends of the fixed shoe rack (4) are fixedly connected to limit sliders (13), and the upper and lower ends of the inner wall of the bending frame (1) are connected to limit slide rails (14), which are adapted to each other.

6. A bending test machine for footwear production according to claim 1, characterized in that: The bottom end of the bending frame (1) is fixedly connected to an overhead frame (15), and the bottom end of the overhead frame (15) is fixedly connected to a mounting base (16).

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