Leather joint fatigue testing machine

Abstract

The utility model discloses a leather joint fatigue testing machine which comprises a machine shell, a motor is fixedly connected in the machine shell, the output end of the motor is fixedly connected with a rotating disc, a connecting rod is hinged to the rotating disc, the other end of the connecting rod is hinged to a connecting plate, a first sliding seat is fixedly connected to the connecting plate, and second sliding seats are arranged on the two sides of the first sliding seat. The second sliding seat and the first sliding seat are slidably connected to the machine shell, and the second sliding seat and the first sliding seat are each fixedly connected with a mounting frame. Two ends of two to-be-tested leathers are respectively fixed by the four groups of clamps, the two clamps in the middle are driven by the motor to do reciprocating linear motion, the clamps on two sides are respectively driven by the to-be-tested leathers, the clamps on two sides are connected with the weight frame through the chains, and automatic resetting is realized by utilizing the gravity of the weight body. Therefore, the tensile load suffered by a leather product in actual use is simulated, so that high-efficiency and high-precision detection on the fatigue resistance of the leather joint is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to fatigue testing machine technical field, especially relate to a leather joint fatigue testing machine. BACKGROUND

[0002] In the leather product field, from daily wearing leather shoes, leather clothes, to the car seat of the interior decoration, the quality of leather joint plays a key role to the overall performance and durability of the product. The prior art generally detects the fatigue strength of the joint by manual visual inspection. This detection method is highly subjective, low in efficiency and poor in accuracy, and is difficult to meet the needs of modern mass production and high-standard quality control. Therefore, a leather joint fatigue testing machine is proposed. SUMMARY

[0003] The utility model discloses a leather joint fatigue testing machine to solve the problems in the background art.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a leather joint fatigue testing machine, including the casing, the casing is fixedly connected with motor in, motor output fixedly connected with carousel, the carousel is hinged with connecting rod, and the other end of connecting rod is hinged with connecting plate, and the connecting plate is fixedly connected with first sliding seat, and both sides of first sliding seat are provided with second sliding seat, and second sliding seat and first sliding seat are slidably connected on the casing, and second sliding seat and first sliding seat are fixedly connected with mounting bracket, and mounting bracket is screw connected with screw, and the bottom of screw is provided with first toothed plate, and first toothed plate is slidably connected on mounting bracket, and the bottom of first toothed plate is provided with second toothed plate, and the position of second sliding seat and first sliding seat corresponding first toothed plate is fixedly connected with second toothed plate.

[0005] Preferably, a first through slot is formed in the casing at a position corresponding to the connecting plate.

[0006] Preferably, the bottom of the first sliding seat is fixedly connected with a first sliding block, the first sliding block is slidably connected with a slide rail, and the slide rail is fixedly connected to the casing. The bottom of the second sliding seat is fixedly connected with a second sliding block, and the second sliding block is slidably connected to the slide rail.

[0007] Preferably, the second sliding seat is fixedly connected with a chain, a sprocket is movably connected to the chain, the sprocket is rotatably connected to the shell, a second through slot is formed in the shell corresponding to the sprocket, a dust cover is arranged at the top end of the second through slot and fixedly connected to the shell, the other end of the chain is fixedly connected with a weight frame, weight bodies are fixedly connected to the outer walls of the two sides of the weight frame, a guide rod is slidably connected to the weight frame and fixedly connected to the shell, a support plate is arranged at the bottom end of the weight frame and slidably connected to the guide rod, a handle is arranged at the top end of the dust cover, a pull rod is fixedly connected to the bottom end of the handle and fixedly connected to the support plate, the weight frame is slidably connected to the pull rod, a quick lock shaft sleeve is slidably connected to the pull rod and fixedly connected to the shell.

[0008] Preferably, a bumper is fixedly connected to the dust cover corresponding to the second sliding seat.

[0009] Preferably, a control panel is fixedly connected to the shell, a control screen is fixedly connected to the control panel, an emergency stop button is arranged on one side of the control screen, a power switch is arranged at the bottom end of the emergency stop button, and the power switch and the emergency stop button are both fixedly connected to the control panel, and the control screen is electrically connected with the motor, the emergency stop button and the power switch.

[0010] Preferably, a protective cover is hingedly connected to the shell, a bracket is fixedly connected to the shell, and a buffer pad is fixedly connected to the bracket.

[0011] The leather joint fatigue testing machine has the advantages that four clamps are used to fix two ends of two pieces of leather to be tested, the middle two clamps are driven by a motor to move back and forth in a straight line, the two pieces of leather to be tested drive the clamps on the two sides, the clamps on the two sides are connected with a weight frame through a chain, and the weight bodies are used to realize automatic reset by gravity, so that the stretching load suffered by the leather products in actual use is simulated, and high-efficiency and high-precision detection of the fatigue resistance of the leather joint is realized. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is a whole three-dimensional structure schematic view of the present application;

[0014] Figure 2 It is a whole side view structure schematic view of the present application;

[0015] Figure 3 The whole three-dimensional cut structure schematic diagram of the utility model.

[0016] In the drawing: 1, the casing; 11, first through slot; 12, second through slot; 13, dust cover; 14, buffer; 15, control panel; 16, control screen; 17, emergency stop button; 18, power switch; 19, protective cover; 110, bracket; 111, buffer pad; 2, motor; 21, turntable; 22, connecting rod; 23, connecting plate; 24, first sliding seat; 25, first sliding block; 26, slide rail; 27, second sliding seat; 28, second sliding block; 29, mounting frame; 210, screw; 211, first toothed plate; 212, second toothed plate; 213, chain; 214, chain wheel; 215, weight frame; 216, guide rod; 217, weight body; 218, support plate; 219, pull rod; 220, quick lock shaft sleeve; 221, handle. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 3The utility model provides a kind of embodiment: a kind of leather joint fatigue testing machine, including casing 1, motor 2 is fixedly connected in casing 1, motor 2 output end is fixedly connected with carousel 21, carousel 21 is hinged with connecting rod 22, the other end of connecting rod 22 is hinged with connecting plate 23, connecting plate 23 is fixedly connected with first sliding seat 24, both sides of first sliding seat 24 are provided with second sliding seat 27, and second sliding seat 27 and first sliding seat 24 are slidably connected on casing 1, second sliding seat 27 and first sliding seat 24 are all fixedly connected with mounting bracket 29, mounting bracket 29 is screw-threaded with screw 210, screw 210 bottom end is provided with first toothed plate 211, and first toothed plate 211 is slidably connected on mounting bracket 29, first toothed plate 211 bottom end is provided with second toothed plate 212, the position of second sliding seat 27 and first sliding seat 24 corresponding first toothed plate 211 is fixedly connected with second toothed plate 212, motor 2 is used to drive carousel 21, carousel 21 is driven connecting plate 23 through connecting rod 22, connecting plate 23 drives first sliding seat 24 to do reciprocating linear motion, mounting bracket 29, screw 210, first toothed plate 211 and second toothed plate 212 constitute clamp, screw 210 is used to make first toothed plate 211 tightly resist on second toothed plate 212, to hold and fix leather, first sliding seat 24 and second sliding seat 27 are used to carry clamp;The position of casing 1 corresponding connecting plate 23 is provided with first through slot 11, and first through slot 11 is used to accommodate connecting plate 23;First sliding seat 24 bottom end is fixedly connected with first sliding block 25, first sliding block 25 is slidably connected with slide rail 26, and slide rail 26 is fixedly connected on casing 1, second sliding seat 27 bottom end is fixedly connected with and second sliding block 28, and second sliding block 28 is slidably connected on slide rail 26, first sliding block 25, slide rail 26 cooperate second sliding block 28, for the sliding of auxiliary first sliding seat 24 and second sliding seat 27.A chain 213 is fixedly connected to the second sliding seat 27. A sprocket 214 is driven through the chain 213 and is rotatably connected to the housing 1. A second through groove 12 is provided on the housing 1 at the position corresponding to the sprocket 214. A dust cover 13 is provided at the top of the second through groove 12 and is fixedly connected to the housing 1. A weight rack 215 is fixedly connected to the other end of the chain 213. Weight bodies 217 are fixedly connected to both outer walls of the weight rack 215. A guide rod 216 is slidably connected to the weight rack 215 and is fixedly connected to the housing 1. A support plate 218 is provided at the bottom of the weight rack 215. The support plate 218 is slidably connected to the guide rod 216. A handle 221 is provided at the top of the dust cover 13, and a pull rod 219 is fixedly connected to the bottom of the handle 221. The pull rod 219 is fixedly connected to the support plate 218. The weight rack 215 is slidably connected to the pull rod 219, and a quick-lock bushing 220 is slidably connected to the pull rod 219. The quick-lock bushing 220 is fixedly connected to the housing 1. The chain 213 is used to transfer the weight of the weight rack 215 to the second sliding seat 27, thereby providing the test load. The sprocket 214 is used to support the chain 213. The second through groove 12 is used to accommodate the sprocket 214. The dust cover 13 is used to protect the sprocket 214. The weight rack 215 is used to install the weight body 217, the guide rod 216 is used to guide the weight rack 215, the support plate 218 is used to support the weight rack 215, the handle 221 is used to pull the support plate 218 through the pull rod 219 to adjust the height of the weight rack 215, and the quick-lock bushing 220 is used to lock the pull rod 219; a buffer 14 is fixedly connected to the dust cover 13 at the position corresponding to the second sliding seat 27, and the buffer 14 is used to limit the second sliding seat 27; a control panel 15 is fixedly connected to the housing 1, and a control screen 16 is fixedly connected to the control panel 15. An emergency stop button 1 is provided on one side of the control screen 16. 7. A power switch 18 is provided at the bottom of the emergency stop button 17, and both the power switch 18 and the emergency stop button 17 are fixedly connected to the control panel 15. The control panel 16 is electrically connected to the motor 2, the emergency stop button 17, and the power switch 18 respectively. The control panel 16 of the control panel 15 is used for human-machine interaction, the emergency stop button 17 is used for emergency stopping of the equipment, and the power switch 18 is used to control the power supply. A protective cover 19 is hinged to the housing 1, and a bracket 110 is fixedly connected to the housing 1. A buffer pad 111 is fixedly connected to the bracket 110. The protective cover 19 is used for safety protection, and the bracket 110 is used to support the opened protective cover 19 through the buffer pad 111.

[0019] Working principle: when using the utility model, the two ends of the leather to be tested are fixed on the clamps on the first sliding seat 24 and the second sliding seat 27 respectively, the clamp is composed of the mounting frame 29, the screw 210, the first toothed plate 211 and the second toothed plate 212, the operation method is as follows: the two ends of the leather are placed on the second toothed plate 212 on the first sliding seat 24 and the second sliding seat 27 respectively, the screw 210 is tightened, the first toothed plate 211 slides down along the mounting frame 29 and presses the leather, according to the operation, the two leathers to be tested are fixed, then the protective cover 19 is covered, the power switch 18 is started, the motor 2 is controlled to start through the control screen 16, the motor 2 drives the rotating disc 21, the rotating disc 21 drives the connecting plate 23 through the connecting rod 22, the connecting plate 23 does reciprocating linear motion in the first through slot 11, drives the first sliding seat 24, the first sliding seat 24 pulls one of the leathers through the first toothed plate 211 and the second toothed plate 212 thereon, the leather drives the second sliding seat 27, the second sliding seat 27 drives the chain 213, the chain 213 is driven on the sprocket 214, drives the weight frame 215, the weight frame 215 slides up along the guide rod 216, and the other weight frame 215 slides down under the action of the gravity of the weight body 217, drives the other second sliding seat 27 through the chain 213, until the second sliding seat 27 is blocked by the buffer 14, under the action of the pulling force generated by the reciprocating linear motion of the first sliding seat 24 and the gravity of the two weight frames 215, the two second sliding seats 27 also do reciprocating linear motion in turn, after the test is completed, the size of the small hole of the leather seam can be measured to evaluate the fatigue strength of the leather joint; wherein, if the height of the weight body 217 needs to be adjusted, the quick lock shaft sleeve 220 is loosened, then the handle 221 is pulled, the handle 221 drives the supporting plate 218 through the pull rod 219 to adjust the height position of the weight frame 215, after the adjustment is completed, the quick lock shaft sleeve 220 is locked again, the second through slot 12 on the casing 1 is used for accommodating the sprocket 214, the dust cover 13 protects the sprocket 214, the emergency stop button 17 on the control panel 15 is used for equipment emergency stop, the bracket 110 supports the opened protective cover 19 through the buffer pad 111, the first sliding block 25, the slide rail 26 cooperate with the second sliding block 28, and the sliding of the first sliding seat 24 and the second sliding seat 27 is assisted.

[0020] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0021] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0022] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A leather seam fatigue testing machine, comprising a housing (1), characterized in that: A motor (2) is fixedly connected inside the housing (1). A turntable (21) is fixedly connected to the output end of the motor (2). A connecting rod (22) is hinged to the turntable (21). A connecting plate (23) is hinged to the other end of the connecting rod (22). A first sliding seat (24) is fixedly connected to the connecting plate (23). A second sliding seat (27) is provided on both sides of the first sliding seat (24). The second sliding seat (27) and the first sliding seat (24) are slidably connected to the housing (1). Mounting brackets (29) are fixedly connected to both the second sliding seat (27) and the first sliding seat (24). Screws (210) are threaded onto the mounting brackets (29). A first toothed plate (211) is provided at the bottom of the screws (210), and the first toothed plate (211) is slidably connected to the mounting brackets (29). A second toothed plate (212) is provided at the bottom of the first toothed plate (211). The second toothed plate (212) is fixedly connected to the second sliding seat (27) and the first sliding seat (24) at the position corresponding to the first toothed plate (211).

2. The leather seam fatigue testing machine according to claim 1, characterized in that: A first through groove (11) is provided on the housing (1) at the position corresponding to the connecting plate (23).

3. The leather seam fatigue testing machine according to claim 1, characterized in that: The first sliding seat (24) has a first slider (25) fixedly connected to its bottom end. A slide rail (26) is slidably connected to the first slider (25) and the slide rail (26) is fixedly connected to the housing (1). The second sliding seat (27) has a second slider (28) fixedly connected to its bottom end and the second slider (28) is slidably connected to the slide rail (26).

4. The leather seam fatigue testing machine according to claim 3, characterized in that: A chain (213) is fixedly connected to the second sliding seat (27). A sprocket (214) is drivenly connected to the chain (213), and the sprocket (214) is rotatably connected to the machine housing (1). A second through groove (12) is provided on the machine housing (1) at the position corresponding to the sprocket (214). A dust cover (13) is provided at the top of the second through groove (12), and the dust cover (13) is fixedly connected to the machine housing (1). A weight rack (215) is fixedly connected to the other end of the chain (213). Weight bodies (217) are fixedly connected to both outer walls of the weight rack (215). A weight rack (215) is slidably connected to the weight rack (215). A guide rod (216) is fixedly connected to the machine housing (1). A support plate (218) is provided at the bottom of the weight rack (215), and the support plate (218) is slidably connected to the guide rod (216). A handle (221) is provided at the top of the dust cover (13). A pull rod (219) is fixedly connected at the bottom of the handle (221), and the pull rod (219) is fixedly connected to the support plate (218). The weight rack (215) is slidably connected to the pull rod (219). A quick-lock bushing (220) is slidably connected to the pull rod (219), and the quick-lock bushing (220) is fixedly connected to the machine housing (1).

5. A leather seam fatigue testing machine according to claim 4, characterized in that: A buffer (14) is fixedly connected to the dust cover (13) at the position corresponding to the second sliding seat (27).

6. A leather seam fatigue testing machine according to claim 4, characterized in that: A control panel (15) is fixedly connected to the housing (1), and a control screen (16) is fixedly connected to the control panel (15). An emergency stop button (17) is provided on one side of the control screen (16), and a power switch (18) is provided at the bottom of the emergency stop button (17). The power switch (18) and the emergency stop button (17) are both fixedly connected to the control panel (15). The control screen (16) is electrically connected to the motor (2), the emergency stop button (17), and the power switch (18).

7. A leather seam fatigue testing machine according to claim 6, characterized in that: A protective cover (19) is hinged to the housing (1), a bracket (110) is fixedly connected to the housing (1), and a buffer pad (111) is fixedly connected to the bracket (110).

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