Leather detection method and detection device

Abstract

The invention discloses a leather detection method and a detection device, and relates to the technical field of leather detection.The leather detection device comprises a bottom plate, a two-way threaded rod is mounted on the bottom plate through a bearing, movable seats are arranged on the outer sides of the two ends of the two-way threaded rod in a threaded sleeving mode, and tension sensors are mounted on the sides, close to the center of the bottom plate, of the movable seats; a base plate is installed at the output end of the tension sensor, and a fixator is installed on the side, away from the center of the bottom plate, of the base plate and used for fixing leather; a frame body is fixed to the bottom plate, a driving part is installed in the middle of the upper end of the frame body, a frame plate is installed at the output end of the driving part, and a supporting plate is fixed to the lower end of the frame plate. According to the leather detection method and device, the front side and the rear side of the leather are cut through the two cutting assemblies, it is ensured that the center line of the sample coincides with the stretching axis of the tensile machine, the tensile force can be evenly applied to all parts of the sample, then the data accuracy is improved, and meanwhile equipment damage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of leather detection, in particular to a leather detection method and a detection device. Background Art

[0002] The leather industry is a large and closely related industrial system, which includes not only core industries such as leather making, shoe making, leather clothing, leather goods, fur and its products, but also supporting industries such as leather chemicals, leather hardware, leather machinery, and accessories. The correlation between upstream and downstream industries is extremely high. The entire industry has flourished relying on strong market demand. The products have always maintained market vitality, with multiple significant benefits such as earning foreign exchange, promoting people's livelihood, and providing a large number of employment opportunities. The leather production process is extremely complicated, and it needs to go through a series of physical and chemical processing procedures such as depilation, degreasing, and tanning. Before the finished product leaves the factory, it must pass strict quality control links such as tensile testing to ensure that its quality meets the standards.

[0003] In the current leather tensile test process, the commonly used method is to first place the leather sample on the test bench, then clamp the two ends of the sample, and finally conduct the tensile test. However, when placing the leather sample, it is difficult for the operator to accurately position it on the tensile axis of the tensile machine, which easily leads to deviation between the sample and the tensile axis. Once the size deviation occurs, the leather will be unevenly stressed during the tensile test, making the test results unable to truly and accurately reflect the actual tensile properties of the leather.

[0004] In addition, there is another issue that cannot be ignored before testing leather samples. Leather fibers will inevitably produce internal stress during the production and processing process, and the existing pre-testing pretreatment methods are relatively simple and difficult to effectively eliminate these internal stresses, which in turn affects the reliability and accuracy of the test results.

[0005] Therefore, we propose a leather detection method and a detection device to solve the above problems. Summary of the invention

[0006] 1. Technical problems to be solved by the invention: The object of the present invention is to provide a leather detection method and a detection device to solve the problems in the current market raised by the above background technology.

[0007] 2. Technical solution: To achieve the above-mentioned object, the present invention provides the following technical solutions: a leather detection method and detection device, comprising a bottom plate, a bidirectional threaded rod is mounted on a bearing on the bottom plate, a movable seat is provided on the outer thread sleeves at both ends of the bidirectional threaded rod, and a tension sensor is mounted on the side of the movable seat close to the center of the bottom plate, and a base plate is mounted on the output end of the tension sensor, and a fixture is mounted on the side of the base plate away from the center of the bottom plate, and the fixture is used to fix the leather; A frame is fixed on the bottom plate, and a driving member is installed in the middle of the upper end of the frame, and a frame plate is installed on the output end of the driving member, a support plate is fixed to the lower end of the frame plate, and a rotating rod is installed on the bearing on the support plate, and cutting components and speed regulating components are installed at the front and rear ends of the rotating rod, and the two cutting components are respectively used for cutting the front and rear sides of the leather.

[0008] Furthermore, the fixture includes an electric push rod fixed on the base plate, an output end of the electric push rod is fixed with a clamping plate designed in an "L" shape, and a sliding groove is opened on the side of the clamping plate, and the clamping plate and the base plate form an upper and lower fitting sliding structure, and the movable seat slides on the bottom plate.

[0009] Through the above technical solution, the leather can be fixed by moving the pressing plate downward.

[0010] Furthermore, the driving member includes a screw rod whose bearing is installed on the frame body and a guide rod fixed on the frame body, the screw rod and the frame plate are threadedly connected, and the guide rod and the frame plate form a fitting sliding structure.

[0011] Through the above technical solution, after the threaded rod is rotated, the frame plate can be driven to move left and right.

[0012] Furthermore, the cutting assembly includes a cutting wheel fixed on the rotating rod, the support plates are symmetrically arranged on the front and rear sides of the cutting wheel, a clamping piece is installed on the lower end of the support plate, a driving gear is fixed to the end of the rotating rod, and the upper end of the driving gear is meshed and connected with a rack, and the rack is fixed on the frame, and the two cutting wheels are symmetrically arranged front and back about the center of the clamping plate.

[0013] Through the above technical solution, the cutting assembly can cut both sides of the leather synchronously, so that the center of the leather pattern and the pulling direction are located on the same straight line.

[0014] Furthermore, the clamping member comprises a slide plate slidably mounted inside the support plate, a clamping wheel is rotatably mounted on the lower end of the slide plate, and a pressure spring is connected between the slide plate and the support plate.

[0015] Through the above technical solution, when the cutting wheel cuts the leather, the pressing wheel is pressed tightly on the leather under the action of the pressure spring, thereby avoiding wrinkles when the leather is cut.

[0016] Furthermore, the speed regulation assembly includes a bevel gear fixedly mounted on the end of the rotating rod, the upper end side of the bevel gear is meshingly connected with a bevel roller, the bevel roller bearing is mounted on a frame plate, and the axial end of the bevel roller is sleeved with a guide gear, and the side of the guide gear is meshingly connected with a pinion, the pinion gear is fixedly sleeved on the outer side of the axial end of the fan roller, and the fan roller bearing is mounted on the frame plate.

[0017] Through the above technical solution, when the rotating rod rotates, it can drive the bevel gear to rotate synchronously, and then drive the fan roller to rotate through the bevel gear, bevel gear roller, guide gear and pinion gear.

[0018] Furthermore, the lower end of the fan roller is located inside the guide cylinder, and the guide cylinder is fixed on the frame plate, and a heating element is installed inside the guide cylinder, and an air outlet duct is installed between the front and rear guide cylinders.

[0019] Through the above technical solution, after the fan roller rotates, hot air can be blown to the leather surface.

[0020] A leather testing method comprises the following steps.

[0021] Step 1: Place the leather on two base plates, and then use two fixers to fix the left and right ends of the leather on the base plates; Step 2: Start the motor at the end of the screw to drive the frame to move left and right. During the movement, the driving gear and the rack are meshed to drive the rotating rod to rotate. When the rotating rod rotates, the cutting wheel is driven to rotate. The cutting wheel cuts the leather by rotating during the displacement process. Step 3: During the rotation of the rotating rod, the speed regulating component is used to drive the fan roller to rotate. When the fan roller rotates, it will drive the air flow to pass through the heating element and then blow out from the air outlet pipe to blow hot air to the leather surface; Step 4: Start the motor at the end of the bidirectional threaded rod again to drive the bidirectional threaded rod to rotate. Driven by the bidirectional threaded rod, the two movable seats perform relative displacement, and the leather is subjected to a tensile test through the cooperation of the fixer and the tensile sensor.

[0022] 3. Beneficial effects: By adopting the technical solution provided by the present invention, compared with the prior art, the leather detection method and detection device of the present invention cut the front and rear sides of the leather through two cutting components, ensuring that the center line of the sample coincides with the tensile axis of the tensile machine, so that the tensile force can be evenly applied to various parts of the sample, thereby improving the accuracy of the data and avoiding equipment damage. The specific contents are as follows: Start the motor at the end of the screw to drive the frame to move left and right under the rotation of the screw. The driving gear and the rack fixed on the frame are meshed to drive the rotating rod and the cutting wheel to rotate. The cutting wheel cuts the side of the leather through displacement and rotation. Since the two cutting wheels are symmetrically arranged about the pressing plate, it is ensured that the center line of the sample coincides with the tensile axis of the pressing plate, so that the tension can be evenly applied to all parts of the sample, thereby improving data accuracy and avoiding equipment damage; When the rotating rod rotates, it can synchronously drive the bevel gear to rotate. The bevel gear drives the bevel gear roller to rotate by the meshing action with the bevel gear roller, and then synchronously drives the guide gear to rotate. The fan roller is driven to rotate by the meshing action of the guide gear and the pinion gear. After the fan roller rotates, the outside air enters the guide cylinder, and the heating element in the guide cylinder is used to heat the airflow and blow hot air to the leather, so that the internal stress generated by the leather fibers during the production and processing process can be partially released, making the fiber arrangement more regular. In this way, the leather is more evenly stressed during the tensile test, and the test results can better reflect its true tensile properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall front view structure of the present invention; Figure 3 It is a schematic diagram of the overall side view structure of the present invention; Figure 4 It is a schematic diagram of the side view structure of the frame plate of the present invention; Figure 5 It is a schematic diagram of the side structure of the speed regulating assembly of the present invention; Figure 6 It is a schematic diagram of the side sectional structure of the pressing piece of the present invention.

[0024] In the figure: 1. bottom plate; 2. two-way threaded rod; 3. movable seat; 4. tension sensor; 5. base plate; 6. fixer; 61. electric push rod; 62. clamping plate; 63. slide groove; 7. frame; 8. driving member; 81. screw rod; 82. guide rod; 9. frame plate; 91. support plate; 10. rotating rod; 11. cutting assembly; 111. cutting wheel; 112. driving gear; 113. clamping member; 1131. slide plate; 1132. clamping wheel; 1133. pressure spring; 12. speed regulating assembly; 121. bevel gear; 122. bevel gear roller; 123. guide gear; 124. pinion; 13. fan roller; 14. guide cylinder; 15. air outlet duct; 16. rack. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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. Example

[0026] See also Figure 1-6 The present invention provides a technical solution: a leather detection method and a detection device, comprising a base plate 1, a bidirectional threaded rod 2 is mounted on a bearing on the base plate 1, a movable seat 3 is provided on the outer thread sleeves of both ends of the bidirectional threaded rod 2, and a tension sensor 4 is mounted on the side of the movable seat 3 close to the center of the base plate 1, and a base plate 5 is mounted on the output end of the tension sensor 4, and a fixture 6 is mounted on the side of the base plate 5 away from the center of the base plate 1, and the fixture 6 is used to fix the leather; the fixture 6 comprises an electric push rod 61 fixed on the base plate 5, and a pressing plate 62 with an "L" shape design is fixed on the output end of the electric push rod 61, and a sliding groove 63 is opened on the side of the pressing plate 62, and the pressing plate 62 and the base plate 5 form an upper and lower fitting sliding structure, and the movable seat 3 fits and slides on the base plate 1; First, the leather is placed on the two base plates 5, and then the two starting electric push rods 61 are used to drive the pressing plate 62 to move downward steadily, and the leather is fixed on the base plate 5 by the cooperation between the base plate 5 and the pressing plate 62. Then, when the motor at the end of the bidirectional threaded rod 2 is started, the tension sensor 4 is used to perform a tension test on the leather; A frame body 7 is fixed on the bottom plate 1, and a driving member 8 is installed in the middle of the upper end of the frame body 7, and a frame plate 9 is installed at the output end of the driving member 8, a support plate 91 is fixed to the lower end of the frame plate 9, and a rotating rod 10 is installed on the bearing of the support plate 91, and a cutting assembly 11 and a speed regulating assembly 12 are installed at the front and rear ends of the rotating rod 10, and the two cutting assemblies 11 are respectively used to cut the front and rear sides of the leather; the driving member 8 includes a screw rod 81 installed on the frame body 7 with a bearing and a guide rod 82 fixed on the frame body 7, the screw rod 81 is threadedly connected with the frame plate 9, and the guide rod 82 and the frame plate 9 form a fitting sliding structure; the cutting assembly 11 includes a screw rod 81 fixed on the frame body 7 and a guide rod 82 fixed on the frame body 7, the screw rod 81 is threadedly connected with the frame plate 9, and the guide rod 82 and the frame plate 9 form a fitting sliding structure; the cutting assembly 11 includes a screw rod 81 fixed on the frame body 7 and a guide rod 82 fixed on the frame body 7; ... and a guide rod 82 fixed on the frame body 7 and a guide rod 82 fixed on the frame plate 9; the cutting assembly 11 includes a The cutting wheel 111 on the rotating rod 10, the support plate 91 is symmetrically arranged on the front and rear sides of the cutting wheel 111, and a pressing piece 113 is installed at the lower end of the support plate 91. A driving gear 112 is fixed to the end of the rotating rod 10, and the upper end of the driving gear 112 is meshed and connected with a rack 16, and the rack 16 is fixed to the frame 7. The two cutting wheels 111 are symmetrically arranged front and back about the center of the pressing plate 62; the pressing piece 113 includes a slide plate 1131 slidably installed inside the support plate 91, and a pressing wheel 1132 is rotatably installed at the lower end of the slide plate 1131, and a pressure spring 1133 is connected between the slide plate 1131 and the support plate 91; The motor at the end of the screw rod 81 is started to drive the frame plate 9 to move left and right. During the movement, the meshing action between the driving gear 112 and the rack 16 is used to drive the rotating rod 10 to rotate. When the rotating rod 10 rotates, the cutting wheel 111 is driven to rotate. The cutting wheel 111 cuts the leather by rotating during the displacement process. While cutting, the pressing wheel 1132 is pressed against the leather surface by the pressure spring 1133 to prevent wrinkles in the leather during the cutting process and affect the cutting effect. This ensures that the center line of the leather sample coincides with the tensile axis of the pressing plate 62, so that the tension can be evenly applied to various parts of the sample, thereby improving data accuracy and avoiding equipment damage. The speed regulating assembly 12 includes a bevel gear 121 fixedly mounted on the end of the rotating rod 10, the upper end side of the bevel gear 121 is meshedly connected with a bevel gear roller 122, the bearing of the bevel gear roller 122 is mounted on the frame plate 9, and the shaft end of the bevel gear roller 122 is sleeved with a guide gear 123, and the side of the guide gear 123 is meshedly connected with a pinion gear 124, the pinion gear 124 is fixedly sleeved on the outer side of the shaft end of the fan roller 13, and the bearing of the fan roller 13 is mounted on the frame plate 9; the lower end of the fan roller 13 is located inside the guide cylinder 14, and the guide cylinder 14 is fixed on the frame plate 9, and a heating element is installed inside the guide cylinder 14, and an air outlet pipe 15 is installed between the front and rear guide cylinders 14; When the rotating rod 10 rotates, it drives the bevel gear 121 to rotate synchronously, and the bevel gear 121 drives the bevel gear roller 122 to rotate by the meshing action with the bevel gear roller 122, and then drives the guide gear 123 to rotate synchronously, and then drives the fan roller 13 to rotate through the meshing action of the guide gear 123 and the pinion 124. After the fan roller 13 rotates, the outside air enters the guide cylinder 14, and the heating element in the guide cylinder 14 is used to heat the airflow, and hot air is blown to the leather, so that the internal stress generated in the reproduction process of the leather fibers can be partially released, making the fiber arrangement more regular. In this way, during the tensile test, the leather is subjected to more uniform force, and the test result can better reflect its true tensile performance.

[0027] A leather testing method comprises the following steps: Step 1: Place the leather on two base plates 5, and then use two fixers 6 to fix the left and right ends of the leather on the base plates 5; Step 2: Start the motor at the end of the screw 81 to drive the frame 9 to move left and right. During the movement, the driving gear 112 and the rack 16 are meshed to drive the rotating rod 10 to rotate. When the rotating rod 10 rotates, the cutting wheel 111 is driven to rotate. The cutting wheel 111 cuts the leather by rotating during the displacement process. Step 3: During the rotation of the rotating rod 10, the speed regulating assembly 12 is used to drive the fan roller 13 to rotate. When the fan roller 13 rotates, it drives the air flow to pass through the heating element and then blow out from the air outlet pipe 15 to blow hot air to the leather surface; Step 4: Start the motor at the end of the bidirectional threaded rod 2 again to drive the bidirectional threaded rod 2 to rotate. Driven by the bidirectional threaded rod 2, the two movable seats 3 are relatively displaced, and the leather is subjected to a tension test through the cooperation of the fixer 6 and the tension sensor 4.

[0028] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leather testing device, characterized in that: The invention comprises a bottom plate (1), a bidirectional threaded rod (2) being mounted on a bearing on the bottom plate (1), movable seats (3) being provided on the outer threaded sleeves at both ends of the bidirectional threaded rod (2), a tension sensor (4) being mounted on a side of the movable seat (3) close to the center of the bottom plate (1), a base plate (5) being mounted on the output end of the tension sensor (4), a fixer (6) being mounted on a side of the base plate (5) away from the center of the bottom plate (1), and the fixer (6) being used to fix leather; A frame body (7) is fixed on the bottom plate (1), and a driving member (8) is installed in the middle of the upper end of the frame body (7), and a frame plate (9) is installed at the output end of the driving member (8), a support plate (91) is fixed at the lower end of the frame plate (9), and a rotating rod (10) is installed on a bearing on the support plate (91), and a cutting assembly (11) and a speed regulating assembly (12) are installed at both the front and rear ends of the rotating rod (10), and the two cutting assemblies (11) are used for cutting the front and rear sides of the leather respectively.

2. A leather detection device according to claim 1, characterized in that: The fixing device (6) comprises an electric push rod (61) fixed on the base plate (5), an output end of the electric push rod (61) is fixed with a clamping plate (62) designed in an "L" shape, and a sliding groove (63) is provided on the side of the clamping plate (62), and the clamping plate (62) and the base plate (5) form a vertically fitting sliding structure, and the movable seat (3) fits and slides on the bottom plate (1).

3. The leather testing device according to claim 1, characterized in that: The driving member (8) comprises a screw rod (81) mounted on the frame body (7) by a bearing and a guide rod (82) fixed on the frame body (7); the screw rod (81) and the frame plate (9) are threadedly connected, and the guide rod (82) and the frame plate (9) form a fitting sliding structure.

4. The leather testing device according to claim 1, characterized in that: The cutting assembly (11) comprises a cutting wheel (111) fixed on the rotating rod (10), the support plate (91) is symmetrically arranged on the front and rear sides of the cutting wheel (111), the lower end of the support plate (91) is installed with a pressing piece (113), the end of the rotating rod (10) is fixed with a driving gear (112), and the upper end of the driving gear (112) is meshedly connected with a rack (16), and the rack (16) is fixed on the frame (7), and the two cutting wheels (111) are symmetrically arranged front and rear about the center of the pressing plate (62).

5. The leather testing device according to claim 4, characterized in that: The pressing member (113) comprises a slide plate (1131) slidably mounted inside the support plate (91), a pressing wheel (1132) is rotatably mounted on the lower end of the slide plate (1131), and a pressure spring (1133) is connected between the slide plate (1131) and the support plate (91).

6. The leather testing device according to claim 1, characterized in that: The speed regulating assembly (12) comprises a bevel gear (121) fixedly mounted on the end of the rotating rod (10); the upper end side of the bevel gear (121) is meshingly connected with a bevel gear roller (122); the bearing of the bevel gear roller (122) is mounted on a frame plate (9); a guide gear (123) is sleeved and fixedly mounted on the shaft end of the bevel gear roller (122); and a pinion gear (124) is meshingly connected to the side of the guide gear (123); the pinion gear (124) is fixedly sleeved on the outer side of the shaft end of the fan roller (13); and the bearing of the fan roller (13) is mounted on the frame plate (9).

7. The leather testing device according to claim 6, characterized in that: The lower end of the fan roller (13) is located inside the guide cylinder (14), and the guide cylinder (14) is fixed on the frame plate (9). A heating element is installed inside the guide cylinder (14), and an air outlet pipe (15) is installed between the front and rear guide cylinders (14).

8. A leather detection method, applicable to the leather detection device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: placing the leather on two base plates (5), and then using two fixers (6) to fix the left and right ends of the leather on the base plates (5); Step 2: starting the motor at the end of the screw rod (81) to drive the frame plate (9) to move left and right. During the movement, the driving gear (112) and the rack (16) are meshed to drive the rotating rod (10) to rotate. When the rotating rod (10) rotates, the cutting wheel (111) is driven to rotate. The cutting wheel (111) cuts the leather by rotating during the displacement process. Step 3: During the rotation of the rotating rod (10), the speed regulating assembly (12) is used to drive the fan roller (13) to rotate. When the fan roller (13) rotates, it drives the air flow to pass through the heating element and then blow out from the air outlet pipe (15) to blow hot air onto the leather surface; Step 4: Start the motor at the end of the bidirectional threaded rod (2) again to drive the bidirectional threaded rod (2) to rotate. Driven by the bidirectional threaded rod (2), the two movable seats (3) move relative to each other, and the leather is subjected to a tensile test through the cooperation of the fixer (6) and the tensile sensor (4).

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