Multi-item testing system for leather

Abstract

The invention discloses a leather multi-project test system, which belongs to the field of leather production detection instruments, and comprises a test platform, an electrical control cabinet, a feeding conveyor and a discharging conveyor, wherein the electrical control cabinet is in control connection with equipment on the test platform; the testing platform comprises a tensile testing device, a thickness detecting device, an ink-jet printing device and a plane moving device used for moving leather to a corresponding device of the testing platform for corresponding item testing, and the testing platform is further provided with a feeding grabbing device used for conveying to-be-tested leather on the feeding conveyor to the plane moving device; and the discharging grabbing device is used for conveying the leather subjected to all item tests on the plane moving device to the discharging conveyor. According to the system, a multi-station cooperation mode is adopted, leather is detected and classified, the functions of leather stretching size change measurement, thickness size detection and leather surface ink-jet printing can be achieved, and the functions of automatic feeding and classified automatic discharging of the leather are achieved through the grabbing device.

Description

Technical Field

[0001] The invention relates to the technical field of leather production testing equipment, and in particular to a leather multi-item testing system. Background Art

[0002] Leather is the main raw material of the leather products industry, mainly used in car steering wheels, car seats, uppers, soles, clothing, bags, etc. Therefore, the quality of leather products depends largely on the quality of the raw material used - leather. Therefore, it is necessary to carry out corresponding testing of leather in the production process. The existing testing device is for testing a single item of leather. After the test is completed, the leather needs to be manually transferred to another item for testing. This process not only requires labor costs, but also the testing efficiency cannot be guaranteed. Therefore, how to improve the efficiency of the overall leather testing process has become an urgent problem to be solved in the production process of enterprises. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a multi-item testing system for leather, so as to solve the problem that the existing testing system using a single testing item requires labor costs and the testing efficiency cannot be guaranteed.

[0004] To achieve the above object, the present invention realizes automatic multi-item detection of leather by setting up a test platform with multi-item testing. Specifically, the multi-item testing system of the present invention includes a testing platform, an electrical control cabinet arranged under the testing platform, and a feeding conveyor and a discharging conveyor respectively arranged at both ends of the testing platform, wherein the testing platform includes a leather stretching testing area provided with a stretching testing device, a leather thickness detection area provided with a thickness detection device, a leather inkjet printing area provided with an inkjet printing device, and a plane moving device arranged on the plane of the testing platform for moving the leather to the corresponding area of ​​the testing platform, wherein a feeding grabbing device and a discharging grabbing device are respectively arranged at the feeding end of the feeding conveyor close to the feeding conveyor and the discharging end of the discharging conveyor close to the discharging conveyor, wherein the feeding grabbing device is used to place the leather to be tested on the feeding conveyor on the plane moving device, so as to transport the leather to be tested to the corresponding area in sequence through the plane moving device for corresponding testing, and the discharging grabbing device is used to place the leather on the plane moving device that has completed the test on the discharging conveyor, and the electrical control cabinet respectively controls the connection of the feeding conveyor, the discharging conveyor, the stretching testing device, the thickness detection device, the inkjet printing device, the feeding grabbing device and the discharging grabbing device.

[0005] The beneficial effects are as follows: the system of the present invention realizes that the leather reaches the corresponding area in sequence to realize the detection of the corresponding items by setting the test platform as a multi-item test platform including a tensile test device, a thickness detection device and an inkjet printing device, and combining the plane moving device set on the test platform that can transfer the leather to the corresponding position of each project area of ​​the multi-item, thereby avoiding the process of moving between each project manually, saving labor costs and improving efficiency. The system of the present invention also sets a grasping device on the test platform to realize the process of automatic loading and unloading, and the feed conveyor of the present invention is used to output the leather to be tested to the area close to the test platform, and the discharge conveyor is used to transport the leather that has been tested on the test platform to the corresponding area away from the test platform, so that the leather approaches from the far end and is transported to the far end, ensuring that the personnel are away from the test platform during operation, and thus compared with only the test platform, the test personnel need to concentrate on the safety of the personnel placed on the plane and the efficiency of the test platform.

[0006] Based on the above, the plane of the test platform is square, the leather stretching test area, the leather thickness detection area and the leather inkjet printing area are respectively arranged in different quadrants of a coordinate system with the plane center of the test platform as the origin, and the plane moving device is a turntable device, and the rotating axis of the turntable device is arranged at the plane center of the test platform.

[0007] This setting of the present invention is to use the center of the test platform as the origin, and distribute the detection equipment of different projects in each quadrant. Compared with the arrangement of the equipment of each project in rows, the test area arrangement structure of the present invention is compact. Based on the setting of this area in the present invention, the mobile device is correspondingly set as a turntable, so that the leather can pass through each project area in turn for the corresponding test process, and because the feed end and the discharge end are fixed, the rotation direction of the turntable can realize the process of passing multiple leathers through each project area in turn without changing. Compared with the side-by-side arrangement, the mobile device needs to transport the leather to be tested from the feed end to the discharge end, and when the next test leather reaches the feed end, the mobile device needs to change the running direction, that is, move from the discharge end to the feed end to obtain the next test leather. If you want to avoid the change of the running direction of the mobile device, you need to add a moving part, that is, form a conveyor belt with two layers of upper and lower layers. This process undoubtedly increases the material setting of the moving part. Therefore, based on this analysis, the regional position setting of each project in the present invention, combined with the setting of the turntable, makes the subsequent control logic simple and reduces the material area required for the mobile device.

[0008] Based on the above, the stretching test device includes a pressing end assembly and a stretching end assembly, the pressing end assembly includes a pressing part and a pressing driving part, the pressing driving part is used to drive the pressing part to move toward one end of the leather to be tested so as to press one end of the test leather, the stretching end assembly includes a stretching part and a stretching driving part, the stretching part is used to clamp the other end of the leather to be tested that is opposite to the end pressed by the pressing part, and the stretching driving part is used to drive the movement of the stretching part to stretch the leather to be tested after the stretching part clamps the other end of the leather to be tested.

[0009] The setting of the stretching test device of the present invention is that after the two opposite ends of the leather to be tested are clamped, the stretching driving part drives the stretching part to move away from the clamping end of the clamping part, thereby realizing the stretching test of the leather to be tested.

[0010] Based on the above, the thickness detection device includes a thickness measuring component, which includes a thickness measuring probe, a lifting drive part and a distance measuring sensor. The distance measuring sensor is fixed at a set distance from the upper surface of the planar moving device and is used to detect the height position of the thickness measuring probe. The lifting drive part is used to drive the thickness measuring probe to move up and down, so that when the leather to be detected reaches the leather thickness detection area, the thickness measuring probe is driven to press down and contact the upper surface of the leather to be detected.

[0011] Based on the setting of the present invention, the position of the distance measuring sensor is fixed so that the distance between the distance measuring sensor and the plane where the leather is located (i.e., the upper surface of the planar moving device) is fixed. Therefore, when there is no leather to be detected on the planar moving device, the distance between the thickness measuring probe and the upper surface of the planar moving device is determined (i.e., the height of the thickness measuring probe detected by the distance measuring sensor at this time is determined). Therefore, in the detection of the thickness of the leather, when there is leather to be detected on the planar moving device, the thickness measuring probe contacts the upper surface of the leather. At this time, by obtaining the height position of the thickness measuring probe detected by the distance measuring sensor, the thickness of the leather can be determined compared to the height position when the thickness measuring probe directly contacts the upper surface of the moving device when there is no leather to be detected. Therefore, this setting of the present invention realizes the detection of the thickness of the leather.

[0012] Based on the above, the inkjet printing device includes an inkjet printing host, a horizontal moving device and a nozzle device fixed on the moving part of the horizontal moving device, and the nozzle surface of the nozzle device is arranged opposite to the upper surface of the planar moving device.

[0013] The inkjet printing host used in the present invention is used to control the movement of the horizontal moving device and the working condition of the nozzle, and the nozzle face of the nozzle device is arranged directly opposite to the upper surface of the planar moving device (that is, the nozzle face of the nozzle device is arranged relative to the upper surface of the planar moving device). When there is leather to be detected on the planar moving device, the nozzle device can perform inkjet printing directly on the leather surface, and the setting of the horizontal moving device can drive the nozzle device to move on the leather surface to dynamically encode the leather.

[0014] Based on the above, the input material grabbing device and the output material grabbing device are both sponge suction cup devices.

[0015] The present invention adopts a sponge suction cup device as a grasping device to absorb the leather from the feeding conveyor and place it on the plane moving device for various item inspections, and absorbs the leather after all items of inspection on the plane moving device and places it on the discharging conveyor. The vacuum adsorption type suction cup device is used as the grasping device, which can firmly grasp the leather and achieve the effect of stably transporting the leather.

[0016] Based on the above, the infeed conveyor and the outfeed conveyor are both composed of a conveyor frame body and a conveyor belt arranged on the body.

[0017] The conveyor used in the present invention is a conveyor belt type conveyor to achieve stable transportation of leather.

[0018] Based on the above, the discharge conveyors are multiple and arranged in parallel, and tracks for moving the discharge grabbing device are arranged in the parallel direction of the discharge conveyors, so that the discharge grabbing device can convey the inspected leather to the corresponding discharge conveyor position.

[0019] In the present invention, multiple discharge conveyors are provided, and corresponding mobile tracks are provided for the discharge grabbing device, so that the discharge grabbing device can be moved to each discharge conveyor. This setting is made in consideration of the fact that the present invention simultaneously performs multiple operations on the leather, and each of the operations has a corresponding result, and the leather is classified into multiple categories by the result. To realize automatic classification of multiple categories, different categories of leather need to be placed in different areas. Therefore, in the present invention, multiple discharge conveyors are provided and combined with the track setting of the discharge grabbing device, so that different categories of leather can be classified and placed according to corresponding rules.

[0020] Based on the above, a conveyor belt tensioning seat with adjustable bolts at both ends is provided at the tail of the infeed conveyor and the outfeed conveyor.

[0021] The arrangement of the present invention can adjust the operation of the conveyor belt by adjusting the adjustable bolts at both ends of the tensioning seat, thereby preventing the belt from running off track and preventing the belt from being damaged.

[0022] Based on the above, a transparent protective shield device is provided on the test platform, and shield opening and closing doors for leather to pass through are provided at the feeding end and the discharging end of the test platform.

[0023] The present invention takes into account the equipment protection problem of the test platform, reduces the influence of foreign matter such as dust on the equipment by arranging a protective shield device, and adopts a protective shield made of a transparent material to observe the internal operation of the test platform.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the multi-project testing system of the present invention.

[0026] Figure 2 It is a schematic diagram of each functional area of ​​the system of the present invention.

[0027] Figure 3 Schematic diagram of the conveyor structure used in the system of this embodiment.

[0028] Figure 4 It is a schematic diagram of the structure of the grabbing device used in the system of this embodiment.

[0029] Figure 5 Schematic diagram of the structure of the tensile testing device used in the system of this embodiment.

[0030] Figure 6 It is a schematic diagram of the structure of the thickness detection device used in the system of this embodiment.

[0031] Figure 7 Schematic diagram of the contact surface between the planar moving device and the leather used in the system of this embodiment.

[0032] Figure 8 It is a schematic diagram of the back structure of the planar moving device used in the system of this embodiment.

[0033] Fig. 9 It is a schematic diagram of the structure of the inkjet printing device used in the system of this embodiment.

[0034] In the figure: 1-feeding conveyor; 11-bolt; 2-discharging conveyor; 3-tensile testing device; 31-clamping end assembly; 311-clamping cylinder; 32-tensile end assembly; 321-clamping cylinder; 322-tensile cylinder; 4-thickness detection device; 41-laser ranging sensor; 42-probe lifting cylinder; 43-thickness measuring probe; 44-horizontal moving module; 5-inkjet printing device; 6-plane moving device; 61-turntable device; 611-floating plate; 612-guide linear slide rail; 62-power device; 621-power motor; 622-reducer; 623-cam dividing device; 7-feeding grabbing device; 71-vacuum generator air inlet; 72-mounting hole; 73-adsorption hole; 8-discharging grabbing device. DETAILED DESCRIPTION

[0035] The technical scheme of the present invention will be clearly and completely described below in conjunction with specific embodiments, but those skilled in the art should understand that the embodiments described below are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example of a multi-item testing system for leather

[0037] like Figure 1 As shown, the system of this embodiment is configured as a multi-project test platform including a tensile test device, a thickness detection device and an inkjet printing device, and combined with a plane moving device provided on the test platform that can transfer the leather to the corresponding positions of each project area of ​​the multi-project, so that the leather can sequentially reach the corresponding area to realize the detection of the corresponding project, thereby avoiding the process of manually moving between each project, saving labor costs and improving efficiency. The system of the present invention is also provided with a grasping device on the test platform to realize the process of automatic loading and unloading, and the feeding conveyor of the present invention is used to output the leather to be tested to an area close to the test platform, and the discharging conveyor is used to transport the leather that has been tested on the test platform to a corresponding area away from the test platform, so that the leather approaches from the far end and is transported to the far end, ensuring that the personnel are away from the test platform during operation, and thus compared with only the test platform, the test personnel need to concentrate on the safety of the personnel placed on the plane and the efficiency of the test platform.

[0038] like Figure 2As shown, the multi-project testing system of this embodiment includes a testing platform, an electrical control cabinet arranged under the testing platform, and a feeding conveyor 1 and a discharging conveyor 2 respectively arranged at both ends of the testing platform, wherein the testing platform includes a leather stretching testing area provided with a stretching testing device 3, a leather thickness detection area provided with a thickness detection device 4, a leather inkjet printing area provided with an inkjet printing device 5, and a plane moving device 6 arranged on the plane of the testing platform for moving the leather to the corresponding area of ​​the testing platform, and a feeding grabbing device 7 and a discharging grabbing device 8 are respectively arranged at the feeding end of the testing platform close to the feeding conveyor and the discharging end of the discharging conveyor close to the discharging conveyor, the feeding grabbing device is used to place the leather to be tested on the feeding conveyor on the plane moving device, so as to transport the leather to be tested to the corresponding area in sequence through the plane moving device for corresponding testing, and the discharging grabbing device is used to place the leather on the plane moving device that has completed the test on the discharging conveyor, and the electrical control cabinet controls the connection of the feeding conveyor, the discharging conveyor, the stretching testing device, the thickness detection device, the inkjet printing device, the feeding grabbing device and the discharging grabbing device. The specific structures of each part of the system in this embodiment are as follows Figure 3-Figure 9 As shown, the structure of each part is described in turn below.

[0039] like Figure 3 As shown, it is a schematic diagram of the conveyor structure used in the system of this embodiment. The feed conveyor and the discharge conveyor of the system of this embodiment are both composed of a conveyor frame body and a conveyor belt arranged on the body. The tail of the feed conveyor and the discharge conveyor are both provided with a conveyor belt tensioning seat with adjustable bolts 11 at both ends.

[0040] Specifically, the feed conveyor of this embodiment adopts a patterned belt conveying form, the discharging conveyor adopts a flat belt conveying form, the main structure of the frame is made of aluminum alloy, the conveying power is a 550W three-phase motor directly connected to a worm gear reducer, the feed adopts a pulsating conveying structure, the effective width of the conveyor is 330mm, and the effective conveying length is 1700mm. The tail of the conveyor is a conveyor belt tensioning seat. By adjusting the adjustable bolts 11 at both ends of the tensioning seat, the conveyor belt operation can be adjusted to prevent the belt from deviating. When the conveyor belt is found to be deviating, it should be corrected and adjusted in time to prevent the belt from being damaged.

[0041] like Figure 4 As shown, it is a schematic diagram of the structure of the grabbing device used in the system of this embodiment, wherein the feeding grabbing device and the discharging grabbing device of this embodiment are both sponge suction cup devices.

[0042] Specifically, the feeding sponge suction cup device can absorb the leather pad on the belt conveyor and move it to the feeding station of the turntable device. The suction cup is installed on the corresponding moving part through the installation hole 72. The movement of the suction cup is driven by two sets of horizontal and vertical module devices. The discharging sponge suction cup device can absorb the leather on the turntable and send the leather to the corresponding discharging conveyor according to the detection structure. The suction cup is composed of a suction cup body, a vacuum generator, a sponge buffer device and other parts. The main body is made of aluminum alloy and is distributed with a large number of adsorption holes 73. The suction surface of the suction cup should be kept clean to prevent clogging of the air holes. A vacuum pipeline and a back-blowing pipeline are connected above the suction cup. The vacuum pipeline is connected to the three-way joint at the outlet of the solenoid valve and enters the vacuum generator through the air inlet 71 of the vacuum generator. The back-blowing pipeline is connected to the back-blowing interface on the surface of the suction cup from the outlet of the solenoid valve. When performing maintenance and repair, the sponge suction cup can be removed by pulling out the air pipe in the air-off state and removing the bolts. The horizontal and vertical modules of the suction cup movement of the feeding sponge suction cup device are driven by a servo motor. The module adopts a combined motion form of a ball screw and a linear slide rail. The protective cover can be opened to add lubricating oil to the screw and the slide rail. The maximum moving distance of the horizontal module is 800mm, and the maximum moving distance of the vertical module is 350mm. The movement must not exceed this range. The horizontal and vertical modules of the discharging suction cup movement are driven by a servo motor. The horizontal moving module adopts a synchronous belt high-speed transmission structure. The horizontal module adopts a combined motion form of a ball screw and a linear slide rail. The protective cover can be opened to add lubricating oil to the screw and the slide rail. The maximum moving distance of the horizontal module is 3800mm, and the maximum moving distance of the vertical module is 350mm. The movement must not exceed this range.

[0043] like Figure 5 As shown, it is a schematic diagram of the structure of the stretching test device adopted by the system of this embodiment, wherein the stretching test device includes a clamping end assembly 31 and a stretching end assembly 32, the clamping end assembly includes a clamping part and a clamping driving part (i.e., a clamping cylinder 311), the clamping driving part is used to drive the clamping part to move toward one end of the leather to be tested so as to clamp one end of the test leather, the stretching end assembly includes a stretching part and a stretching driving part (i.e., a stretching cylinder 322), the stretching part is used to clamp the other end of the leather to be tested opposite to the end clamped by the clamping part, and the stretching driving part is used to drive the movement of the stretching part so as to stretch the leather to be tested after the stretching part clamps the other end of the leather to be tested.

[0044] Specifically, the stretching test device can clamp the leather pad on the turntable (i.e., the plane moving device) and stretch the leather at the floating end. The stretching device consists of a stretching end assembly 32 and a clamping end assembly 31. The clamping end assembly is driven by a linear module to move the clamping device (i.e., the clamping part), with a maximum moving distance of 350 mm. The stretching end assembly can move forward and backward under the drive of the stretching cylinder 322. The turntable drives the leather to rotate to the stretching test station, and then the clamping cylinder 311 is pressed down. The stretching cylinder drives the clamping cylinder 321 to move to the floating device (i.e., move to the other end of the leather to be tested opposite to the end clamped by the clamping part), clamp the leather, and then the stretching cylinder 322 pulls the floating device and the leather pad out a distance and records the data. The stretching movement process is guided and positioned by the linear slides on both sides of the stretching cylinder. The diameter of the guide rail is 20 mm, and the two linear bearings are LMK20LUU.

[0045] like Figure 6 As shown, it is a schematic diagram of the structure of the thickness detection device adopted by the system of this embodiment. The thickness detection device includes a thickness measuring component, and the thickness measuring component includes a thickness measuring probe, a lifting drive part and a distance measuring sensor. The distance measuring sensor is fixed at a set distance from the upper surface of the planar moving device, and is used to detect the height position of the thickness measuring probe. The lifting drive part is used to drive the thickness measuring probe to move up and down, so as to drive the thickness measuring probe to press down and contact the upper surface of the leather to be detected when the leather to be detected reaches the leather thickness detection area.

[0046] Specifically, the thickness detection device of this embodiment can detect the thickness of the leather pad on the turntable and record and count the thickness data. The thickness detection device 4 includes a thickness measuring component, which includes a thickness measuring probe 43, a probe lifting cylinder 42 (that is, the lifting drive part of this embodiment adopts a probe lifting cylinder), a laser ranging sensor 41 and other components. When the turntable rotates to the right position, the lifting cylinder drives the probe to press down, and the laser sensor detects the height position of the probe to realize the function of leather thickness detection. Based on the setting of this embodiment, the distance between the ranging sensor and the plane where the leather is located (that is, the upper surface of the plane moving device) is fixed. Therefore, when there is no leather to be detected on the plane moving device, the distance between the thickness measuring probe and the upper surface of the plane moving device is determined (that is, the height of the thickness measuring probe detected by the ranging sensor at this time is determined). Therefore, in the thickness detection of the leather, when there is leather to be detected on the plane moving device, the thickness measuring probe contacts the upper surface of the leather. At this time, by obtaining the height position of the thickness measuring probe detected by the ranging sensor, compared with the height position when the thickness measuring probe directly contacts the upper surface of the moving device when there is no leather to be detected, the thickness of the leather can be determined.

[0047] After the probe is raised, the distance from the upper surface of the turntable is about 30mm, which can realize the leather thickness detection function of 0.6mm-3mm. The thickness detection device of this embodiment also includes a moving component. The horizontal moving module 44 of the moving component has a maximum moving distance of 300mm, which can drive the thickness measuring probe to move in the length direction of the leather. The model of the probe lifting cylinder is TCL20×20S guide rod cylinder. Through the setting of the moving component of this embodiment, multiple positions of the leather can be detected, thereby improving the reliability of the detection data.

[0048] like Figure 7 As shown in FIG. 1 , it is a schematic diagram of the contact surface between the planar moving device and the leather used in the system of this embodiment. Figure 8 As shown, it is a schematic diagram of the back structure of the plane moving device used in the system of this embodiment. The plane moving device of this embodiment is a turntable device, and the rotating shaft of the turntable device is set at the plane center of the test platform. And the plane of the test platform of this embodiment is square, and the leather stretching test area, the leather thickness detection area and the leather inkjet printing area are respectively set in different quadrants of the coordinate system with the plane center of the test platform as the origin. Based on the regional position setting of each project, the detection equipment of different projects is distributed in each quadrant, and combined with the setting of the turntable, compared with the arrangement of the equipment of each project in rows and parallel, the test area setting structure of this embodiment is compact.

[0049] Specifically, the turntable device can drive the leather placement plate to perform four-station equal-angle rotation function, and is composed of a power device 62, a turntable device 61 and other parts. The turntable device 61 is composed of a multi-hole mounting plate and a floating stretching component, and the power device is composed of a motor reducer and a cam dividing device. The turntable device has an overall size of 910mm×910mm and a rotation radius of 605mm. The floating device on the turntable is composed of a floating plate 611 and a guide linear slide 612 and other components. The linear slide model is EGW15CA, and the maximum sliding distance is 50mm. When replacing and maintaining the slide rail, pay attention to the horizontal movement when sliding out the slider to prevent the ball from falling. The power device 62 is a direct connection form of a power motor 621, a reducer 622 and a cam dividing device 623, all of which are installed below the plate. The turntable power motor is a 3-phase 380V750W motor, and the reducer is a hard-toothed helical reducer.

[0050] like Fig. 9The figure is a schematic diagram of the structure of the inkjet printing device used in the system of this embodiment. The inkjet printing device includes an inkjet printing host, a horizontal moving device, and a nozzle device fixed on the moving part of the horizontal moving device. The nozzle surface of the nozzle device is arranged opposite to the upper surface of the plane moving device. The inkjet printing host is used to control the movement of the horizontal moving device and the working condition of the nozzle. The nozzle surface of the nozzle device is arranged opposite to the upper surface of the plane moving device (that is, the nozzle surface of the nozzle device is arranged opposite to the upper surface of the plane moving device). When there is leather to be detected on the plane moving device, the nozzle device can perform inkjet printing on the leather surface, and the setting of the horizontal moving device can drive the nozzle device to move on the leather surface to perform dynamic coding on the leather.

[0051] Specifically, the inkjet printing device 5 can print the leather surface, and the inkjet printing host (such as Fig. 9 The structure and size diagram of the two inkjet printer hosts at different viewing angles on the left), the nozzle device (such as Fig. 9 The structure and size diagram of the two nozzle devices at different viewing angles on the right) and horizontal moving devices are composed of other components. After the turntable drives the leather to rotate to the inkjet printing station, the horizontal moving module moves the nozzle to dynamically print the leather. The maximum horizontal moving distance of the module is 400mm. The height of the nozzle from the leather is adjusted by the optical axis fastening position on the fixed support. Generally, it can be adjusted within the range of 2mm-10mm from the leather to the clearest state.

[0052] like Figure 1 As shown, the structures of various parts of the system of this embodiment are all arranged on the equipment rack device. The equipment rack device is the overall supporting structure of each device of the equipment. This equipment adopts a steel welding structure, and the outer surface is sprayed with plastic. An electrical control cabinet is installed in the space below the equipment, and the overall structure is neat. In addition, a transparent protective shield device is provided on the test platform of this embodiment. The protective shield device is provided with shield opening and closing doors for leather to pass through at the feeding end and the discharging end of the test platform. The equipment shield opening and closing door has a safety sensing device. The sensing device adopts a travel switch. When the door panel is opened and closed, it will press and change the angle of the swing arm to realize signal control. Heavy-load adjustable feet are installed under the equipment rack device. The board surface load installed on the equipment rack device is 800kg, and the height of the feet can be adjusted within a range of 35mm.

[0053] In this embodiment, the device size, device power, power supply voltage and device gas source requirements of the test platform are also set accordingly:

[0054] The overall dimensions of the equipment are 3100×5270×1900 (length×width×height);

[0055] Equipment power: feed conveyor power: 0.55kw, feed horizontal movement power: 0.2kw

[0056] Feeding vertical moving power: 0.2kw, turntable rotation power: 0.75kw, tensile test leather pressing plate horizontal moving power: 0.1kw, thickness detection device horizontal moving power: 0.1kw, inkjet equipment horizontal moving power: 0.1kw, discharging horizontal moving power: 0.4kw, discharging vertical moving power: 0.2kw, discharging conveyor conveying power: 0.55kw;

[0057] The power supply voltage is three-phase 380V;

[0058] Equipment gas source requirements: gas source pressure 0.6MPa-0.8MPa, gas supply volume ≥2m 3 / min.

[0059] Based on the setting of the system in this embodiment, during the leather testing process, the leather can be manually placed into the feeding conveyor, the sponge suction cup can place the leather into the turntable, the turntable can be rotated to the stretching station for stretching testing, the turntable can be rotated to the thickness detection station for thickness measurement, the turntable can be rotated to the coding station for data coding, the turntable can be rotated to the discharging station, and the discharging sponge suction cup can discharge the leather into the corresponding conveyor according to classification.

[0060] And the system of this embodiment can produce the following effects:

[0061] 1) This set of equipment adopts multi-station collaboration to detect and classify leather;

[0062] 2) The equipment can realize functions such as leather stretching size change measurement, thickness size detection, and leather surface inkjet printing;

[0063] 3) Two sets of sponge suction cups are used to realize the automatic loading and classification of leather;

[0064] 4) The equipment uses a turntable to cycle the leather at each station and load and unload the leather;

[0065] 5) The main body of the equipment is equipped with a protective shield device, and the shield is made of highly transparent acrylic material, so that the internal operation can be observed.

[0066] As another embodiment, a touch screen can be installed on the device of the system, and the leather formula detected by the device can be changed and selected on the screen.

[0067] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A multi-item testing system for leather, comprising a testing platform, an electrical control cabinet arranged under the testing platform, and an infeed conveyor and an outfeed conveyor respectively arranged at both ends of the testing platform, characterized in that: The test platform includes a leather stretching test area provided with a stretching test device, a leather thickness detection area provided with a thickness detection device, a leather inkjet printing area provided with an inkjet printing device, and a plane moving device provided on the plane of the test platform for moving the leather to the corresponding area of ​​the test platform. The test platform is respectively provided with a feed grabbing device and a discharge grabbing device at the feed end close to the feed conveyor and the discharge end close to the discharge conveyor. The feed grabbing device is used to place the leather to be tested on the feed conveyor on the plane moving device, so as to transport the leather to be tested to the corresponding area in sequence through the plane moving device for corresponding testing. The discharge grabbing device is used to place the leather on the plane moving device that has completed the test on the discharge conveyor. The electrical control cabinet controls the connection of the feed conveyor, the discharge conveyor, the stretching test device, the thickness detection device, the inkjet printing device, the feed grabbing device and the discharge grabbing device respectively.

2. The multi-project testing system according to claim 1, characterized in that: The plane of the test platform is square, the leather stretching test area, the leather thickness detection area and the leather inkjet printing area are respectively arranged in different quadrants of a coordinate system with the plane center of the test platform as the origin, and the plane moving device is a turntable device, and the rotating axis of the turntable device is arranged at the plane center of the test platform.

3. The multi-project testing system according to claim 1, characterized in that: The stretching test device includes a pressing end assembly and a stretching end assembly, the pressing end assembly includes a pressing part and a pressing driving part, the pressing driving part is used to drive the pressing part to move toward one end of the leather to be tested so as to press one end of the test leather, the stretching end assembly includes a stretching part and a stretching driving part, the stretching part is used to clamp the other end of the leather to be tested opposite to the end pressed by the pressing part, and the stretching driving part is used to drive the movement of the stretching part to stretch the leather to be tested after the stretching part clamps the other end of the leather to be tested.

4. The multi-project testing system according to claim 1, characterized in that: The thickness detection device includes a thickness measuring component, which includes a thickness measuring probe, a lifting drive part and a distance measuring sensor. The distance measuring sensor is fixed at a set distance from the upper surface of the planar moving device and is used to detect the height position of the thickness measuring probe. The lifting drive part is used to drive the thickness measuring probe to move up and down, so that when the leather to be detected reaches the leather thickness detection area, the thickness measuring probe is driven to press down and contact the upper surface of the leather to be detected.

5. The multi-project testing system according to claim 1, characterized in that: The inkjet printing device comprises an inkjet printing host, a horizontal moving device and a nozzle device fixed on a moving part of the horizontal moving device, wherein the nozzle surface of the nozzle device is arranged opposite to the upper surface of the planar moving device.

6. The multi-project testing system according to claim 1, characterized in that: The in-feed grabbing device and the out-feed grabbing device are both sponge suction cup devices.

7. The multi-project testing system according to claim 1, characterized in that: The infeed conveyor and the outfeed conveyor are both composed of a conveyor frame body and a conveyor belt arranged on the body.

8. The multi-project testing system according to claim 7, characterized in that: There are multiple discharge conveyors arranged in parallel, and tracks for moving the discharge grabbing device are arranged in the parallel direction of the discharge conveyors, so that the discharge grabbing device can convey the inspected leather to the corresponding discharge conveyor position.

9. The multi-project testing system according to claim 7, characterized in that: The tails of the infeed conveyor and the outfeed conveyor are both provided with a conveyor belt tensioning seat with adjustable bolts at both ends.

10. The multi-project testing system according to claim 1, characterized in that: A transparent protective shield device is arranged on the test platform, and shield opening and closing doors for leather to pass through are arranged at the positions of the feeding end and the discharging end of the test platform.

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