A lightweight foamed shoe material testing device

Abstract

The utility model relates to a kind of lightweight foaming shoe material testing devices in material testing technical field, comprising: rack;Rotary frame, rotation is connected in the rack front side by pivot, the circumferential of the rotary frame is evenly ringed and is equipped with at least two poking wheels;Annular mounting bracket, it is connected with rack and surrounds the outer periphery of the rotary frame, at least two radial extension installation sliding slot are evenly ringed on the mounting bracket;Clamping assembly, installation is in installation sliding slot, for clamping sample;Driving motor, fixed installation is in the rack, and output end is connected with rotary frame transmission, for driving rotary frame rotation, make poking wheel periodic poking sample and produce bending deformation;The utility model is matched by the cooperation design of multiple clamping assemblies of annular distribution and multiple poking wheels of coaxial rotation, realizes single driving synchronous test multiple groups of samples, and compared with traditional single sample test equipment efficiency has been promoted, and then short research and development verification period can be.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, and in particular to a lightweight foam shoe material testing device. Background Technology

[0002] Traditional PVC injection-molded shoe materials, due to their high density and poor resilience, struggle to meet the demands for lightweight and high performance. Chemical foaming agents present problems such as residue pollution and poor environmental friendliness. In contrast, supercritical fluid foaming technology offers advantages such as being environmentally friendly and producing uniform cell structure. Therefore, there is an urgent need to utilize supercritical fluid foaming technology for shoe material production, especially for soles. However, during the research process, durability testing of the experimental samples is necessary to ensure the quality of subsequent products.

[0003] To address this, we designed a lightweight foam shoe material testing device. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a lightweight foam shoe material testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight foam shoe material testing device, comprising:

[0007] frame;

[0008] A rotating frame is rotatably connected to the front side of the machine frame via a rotating shaft, and at least two actuating wheels are evenly arranged around the circumference of the rotating frame;

[0009] An annular mounting bracket surrounds the outer periphery of the rotating frame and is connected to the frame. The mounting bracket is provided with at least two radially extending mounting grooves evenly arranged around it.

[0010] The clamping assembly, installed in the mounting groove, is used to clamp the sample;

[0011] A drive motor is fixedly installed on the frame, and its output end is connected to the rotating frame for driving the rotating frame to rotate, so that the agitator wheel periodically moves the sample to produce bending deformation.

[0012] The number of actuating wheels is an integer multiple or a fraction of the number of clamping components to ensure that the rotating frame is balanced by forces.

[0013] Furthermore, the clamping assembly includes:

[0014] A fixing plate is fixedly installed at one end of the mounting groove;

[0015] The movable clamp is slidably installed in the mounting groove;

[0016] A compression spring, located between the movable clamping plate and the other end face of the mounting groove, pushes the movable clamping plate to move towards the fixed clamping plate to clamp the sample.

[0017] Furthermore, the sample contact surface of the movable clamp is provided with a flexible anti-slip layer.

[0018] Furthermore, the end face of the mounting groove corresponding to the movable clamp is provided with a stud that extends into the inner ring of the compression spring. The stud is threadedly connected to an adjusting nut, and the preload of the compression spring is adjusted by turning the adjusting nut.

[0019] Furthermore, a locking bolt is screwed to the rear end of the annular mounting bracket. The locking bolt passes through the mounting bracket and presses against the frame to achieve circumferential positioning.

[0020] Furthermore, the actuating wheel is vertically mounted on the radial outer end of the rotating frame via a wheel axle.

[0021] Furthermore, the front side of the fixed clamp is provided with an inwardly extending L-shaped baffle. The bent part of the L-shaped baffle and the inner end face of the fixed clamp form a channel to avoid the actuating wheel, and the bent part restricts the swing amplitude of its inner end when the sample is reset.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. Through the coordinated design of multiple clamping components evenly distributed in a ring and multiple coaxially rotating actuating wheels, multiple sets of samples can be tested simultaneously in a single drive, which improves efficiency compared with traditional single-sample testing equipment and thus shortens the R&D verification cycle.

[0024] 2. The L-shaped baffle limits the swing amplitude of the inner end of the sample during the elastic reset phase, compresses the reset stabilization time, eliminates test errors caused by vibration, and ensures that the bending frequency is accurate and controllable.

[0025] 3. The mechanical pressure adjustment structure using a compression spring and a pressure adjusting nut allows for linear changes in spring preload by turning the nut, thus enabling the clamping of samples of different thicknesses.

[0026] 4. The clamping surface of the fixed clamping plate is rigid and approximates the ground, while the clamping surface of the clamping component has a flexible anti-slip layer that approximates the sole of the foot. By moving the sample in one direction with the actuating wheel, it approximates the bending deformation of the sole of the shoe when walking, and the overall result is close to the real situation of the sole of the shoe, making the test results more realistic. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0028] Figure 2 This is a front view of the first structure of this utility model;

[0029] Figure 3 for Figure 2 AA section view;

[0030] Figure 4 This is a schematic diagram of the second structure of this utility model;

[0031] Figure 5 This is a front view of the second structure of this utility model;

[0032] Figure 6 for Figure 5 BB cross-sectional view.

[0033] In the diagram: 1. Frame; 2. Rotating frame; 3. Actuating wheel; 4. Circular mounting frame; 41. Mounting slide; 5. Clamping assembly; 51. Fixed clamping plate; 52. Movable clamping plate; 53. Compression spring; 54. Stud; 55. Adjusting nut; 6. Drive component; 7. Locking bolt; 8. L-shaped baffle. Detailed Implementation

[0034] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0035] Example 1, in conjunction with Appendix Figure 1-3 A lightweight foam shoe material testing device, comprising:

[0036] Frame 1, as needed, can be supported by a metal frame and have anti-slip pads at the bottom.

[0037] The rotating frame 2 is rotatably connected to the center of the front side of the frame 1 via a rotating shaft (with a bearing at the rear end). At least two (e.g., 2 to 6) extension arms are uniformly welded in the radial circumference of the frame 2, and a rotary wheel 3 is vertically installed at the end of each extension arm.

[0038] The annular mounting bracket 4 is fixed to the frame 1 by a support rod and coaxially sleeved on the outer circumference of the rotating frame 2. At least two (e.g., 3-6) radial mounting grooves 41 are evenly distributed along the circumference of the mounting bracket 4.

[0039] Furthermore, to ensure that the rotating frame 2 and the annular mounting frame 4 are subjected to balanced forces during operation, the number of actuating wheels 3 or clamping components 5 is an integer multiple of the number of clamping components 5 or actuating wheels 3, thus ensuring that the rotating frame 2 is subjected to balanced forces. That is to say, during operation, all actuating wheels 3 simultaneously actuate their respective corresponding samples, or all samples are simultaneously actuated by their respective corresponding actuating wheels 3.

[0040] Clamping assembly 5, installed in mounting groove 41, is used to clamp the sample; its number is an integer multiple or fraction of the number of actuating wheels 3; preferably an integer multiple of the number of actuating wheels 3. It includes:

[0041] Fixed clamp 51: Bolted to one end of mounting slide 41; specifically, the edge of the clamping surface of the fixed clamp 51 is provided with a rounded chamfer.

[0042] Movable clamping plate 52: It is slidably embedded in the mounting groove 41, and the clamping surface is pasted with a flexible rubber layer;

[0043] Compression spring 53: One end is sleeved on the stud 54 at the other end face of the mounting slide 41, and the other end is pressed against the movable clamp 52; if necessary, the stud 54 is provided with a pressure adjusting nut 55, and the preload of the compression spring 53 can be adjusted by rotating the pressure adjusting nut.

[0044] Drive motor 6: A geared motor is selected to drive the rotating shaft of the rotating frame 2 to rotate at a constant speed through a coupling.

[0045] Work process:

[0046] The foamed shoe material sample is inserted between the fixed clamp 51 and the movable clamp 52. The compression spring 53 pushes the movable clamp 52 to clamp the sample. The drive mechanism 6 is started, and the rotating frame 2 drives the actuating wheel 3 to rotate. When the actuating wheel 3 contacts the free end of the sample, it pushes the sample to bend to the maximum angle. After the actuating wheel 3 passes the sample, the sample is reset under the action of elastic restoring force. The rotating frame 2 continues to rotate, and the actuating wheel 3 periodically actuates the sample to achieve continuous bending fatigue testing.

[0047] Example 2, in conjunction with Appendix Figure 4-6 A lightweight foam shoe material testing device addresses the issue of inconvenient sample installation in some locations due to the fixed position of the annular mounting bracket 4 in Embodiment 1. This embodiment differs from Embodiment 1 in that the installation method of the annular mounting bracket 4 is optimized. The inner side of the support rod of the annular mounting bracket 4 is provided with a ring, which is rotatably connected to the frame 1 via a bearing. Simultaneously, the support rod is threaded with a locking bolt 7, the end of which tightens against the frame 1 to achieve circumferential locking of the annular mounting bracket 4.

[0048] Example 3, in conjunction with Appendix Figure 4-6A lightweight foam shoe material testing device is provided. In embodiments one and two, after the actuating wheel 3 passes the sample, the sample will swing back and forth under the action of elastic restoring force. Therefore, the difference between this embodiment and embodiments one or two is that: an L-shaped baffle 8 is provided on the outside of the fixed clamp 51, and the bent part of the L-shaped baffle 8 and the inner end face of the fixed clamp 51 form a channel to avoid the actuating wheel 3; that is, the sample will be quickly stabilized at the reset position due to the restriction of the bent part of the L-shaped baffle 8.

[0049] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A lightweight foam shoe material testing device, characterized in that, include: Rack (1); The rotating frame (2) is rotatably connected to the front side of the frame (1) via a rotating shaft, and at least two actuating wheels (3) are evenly arranged around the circumference of the rotating frame (2). An annular mounting bracket (4) surrounds the outer periphery of the rotating frame (2) and is connected to the frame (1). At least two radially extending mounting grooves (41) are evenly arranged around the mounting bracket (4). The clamping assembly (5) is installed in the mounting groove (41) and is used to clamp the sample; The drive motor (6) is fixedly installed on the frame (1) and its output end is connected to the rotating frame (2) for driving the rotating frame (2) to rotate, so that the agitator (3) periodically agitates the sample to produce bending deformation. The number of the actuating wheels (3) is an integer multiple or a fraction of the number of clamping components (5) to ensure that the rotating frame (2) is in force balance.

2. The lightweight foam shoe material testing device according to claim 1, characterized in that: The clamping assembly (5) includes: A fixing plate (51) is fixedly installed at one end of the mounting slide (41); The movable clamp (52) is slidably installed in the mounting groove (41); A compression spring (53) is located between the movable clamp (52) and the other end face of the mounting groove (41), pushing the movable clamp (52) to move towards the fixed clamp (51) to clamp the sample.

3. The lightweight foam shoe material testing device according to claim 2, characterized in that: The sample contact surface of the movable clamp (52) is provided with a flexible anti-slip layer.

4. The lightweight foam shoe material testing device according to claim 2, characterized in that: The mounting groove (41) is provided with a stud (54) that extends into the inner ring of the compression spring (53) on the end face of the movable clamp (52). The stud (54) is threadedly connected to an adjusting nut (55), and the preload of the compression spring (53) is adjusted by turning the adjusting nut (55).

5. The lightweight foam shoe material testing device according to claim 1, characterized in that: The rear end of the annular mounting bracket (4) is screwed with a locking bolt (7), which passes through the mounting bracket (4) and presses against the frame (1) to achieve circumferential positioning.

6. The lightweight foam shoe material testing device according to claim 1, characterized in that: The actuating wheel (3) is vertically mounted on the radial outer end of the rotating frame (2) via a wheel axle.

7. The lightweight foam shoe material testing device according to claim 2, characterized in that: The front side of the fixed clamp (51) is provided with an inwardly extending L-shaped baffle (8). The bent part of the L-shaped baffle (8) and the inner end face of the fixed clamp (51) form a channel to avoid the actuating wheel (3), and the bent part restricts the swing amplitude of its inner end when the sample is reset.

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