Leather oscillating stretcher

Abstract

The application relates to a leather oscillation stretching machine, and relates to the technical field of stretching machines; the leather oscillation stretching machine comprises a machine body, a plurality of hole seats are arranged in an upper conveying belt, a plurality of nail seats are arranged in a lower conveying belt, and an oscillation mechanism is arranged in the machine body; two variable frequency motors are further arranged on the machine body, one of the variable frequency motors is used for controlling the conveying speed of the upper conveying belt, and the other variable frequency motor is used for controlling the conveying speed of the lower conveying belt. The application has the effect that the conveying speed ratio between the upper conveying belt and the lower conveying belt can be flexibly adjusted.

Description

Technical Field

[0001] This application relates to the field of leather stretching machine technology, and in particular to a leather vibration stretching machine. Background Technology

[0002] Softening, a process in leather tanning, allows the leather fibers inside the leather to loosen and soften under the combined effects of bending and stretching, thus adapting them to the requirements of subsequent processing. The leather vibrating softening machine, as the equipment for implementing this process, is suitable for softening thicker leathers such as shoe uppers, bag leathers, and sofa leathers that are dried under vacuum or in a stretched state, and therefore plays an important role.

[0003] A leather vibrating softening machine exists in the prior art, comprising a machine body with an upper conveyor belt and a lower conveyor belt mounted on it, with a gap between them for placing leather. The machine body also includes a conveyor motor and a gear set. The conveyor motor drives one roller in the upper conveyor belt and one roller in the lower conveyor belt to rotate via the gear set, thereby achieving synchronous drive of the upper and lower conveyor belts. The upper conveyor belt has several perforated seats inside its internal space, and the lower conveyor belt has several nail seats corresponding to the perforated seats inside its internal space. The nail rods at the top of the nail seats correspond one-to-one with the holes at the bottom of the perforated seats. The machine body also includes a vibration mechanism that drives each nail seat to vibrate vertically. In use, the conveyor motor drives the upper and lower conveyor belts to transport the leather via the gear set. During the leather transport process, the nail seats vibrate vertically under the action of the vibration mechanism, thus cooperating with the perforated seats to soften the leather.

[0004] Regarding the aforementioned technologies, since both the upper and lower conveyor belts are driven by the same conveyor motor, the conveying speed ratio between the upper and lower conveyor belts is fixed. However, the conveying speed ratio between the upper and lower conveyor belts often changes depending on the parameters of the leather. This makes it difficult for the conveyor motor to adjust the conveying speed ratio between the upper and lower conveyor belts. Consequently, the existing technology can often only soften leather with specific parameters, thus limiting its applicability. Therefore, improvements are needed. Summary of the Invention

[0005] In order to flexibly adjust the conveying speed ratio between the upper and lower conveyor belts, this application provides a leather vibration stretching machine.

[0006] This application provides a leather vibration softening machine, which adopts the following technical solution: A leather vibration softening machine includes a machine body, in which an upper conveyor belt, a lower conveyor belt, a plurality of hole seats and a plurality of nail seats are arranged. The machine body is also equipped with two variable frequency motors, one of which is used to control the conveying speed of the upper conveyor belt and the other of which is used to control the conveying speed of the lower conveyor belt.

[0007] By adopting the above technical solution, compared with the prior art where both the upper and lower conveyor belts are driven by the same conveyor motor, resulting in a fixed conveying speed ratio between the upper and lower conveyor belts, it is difficult to adjust the conveying speed ratio between the upper and lower conveyor belts, thus limiting the scope of application; this application, by controlling two variable frequency motors, allows the upper and lower conveyor belts to be controlled by separate variable frequency motors, thereby enabling relevant personnel to control the conveying speed of the upper and lower conveyor belts by controlling the two variable frequency motors, and thus accurately adjust the conveying speed ratio between the upper and lower conveyor belts, effectively increasing the scope of application of this application, while also increasing the softening effect on the leather and facilitating the control by relevant personnel.

[0008] Preferably, the machine body is further provided with an extension frame at one end along its own conveying direction. The extension frame is also provided with a cleaning mechanism. The cleaning mechanism includes a mounting frame, a rotating component, and a plurality of cleaning rollers. The mounting frame is provided on the extension frame. The plurality of cleaning rollers are respectively located on the upper and lower sides of the leather. Each cleaning roller is rotatably connected to the mounting frame. Each cleaning roller has bristles on its sidewall so that the bristles contact the surface of the leather. The rotating component is used to drive each cleaning roller to rotate.

[0009] By adopting the above technical solution and setting the cleaning mechanism, the rotating component can drive the cleaning roller to rotate, thereby cleaning both the upper and lower surfaces of the leather to be softened. This effectively reduces the debris and dust on the upper and lower surfaces of the leather to be softened, thus ensuring the cleanliness of the machine body and also ensuring the softening effect on the leather.

[0010] Preferably, the top of the addition frame has an opening, and the addition frame is also provided with an opening and closing cover. One end of the opening and closing cover is rotatably connected to the addition frame. The opening and closing cover is used to cover the opening at the top of the addition frame. The addition frame is also provided with an opening and closing mechanism, which is used to drive the opening and closing cover to rotate.

[0011] By adopting the above technical solution, the opening and closing cover and the opening and closing mechanism are designed so that the opening and closing mechanism can drive the opening and closing cover to rotate, thereby opening the opening and closing cover. This makes it convenient for relevant personnel to clean the equipment inside the added rack, and also makes it convenient for relevant personnel to clean the cleaning mechanism. This simplifies the operation of relevant personnel, thereby ensuring the cleanliness inside the added rack and ensuring the cleaning effect on the leather.

[0012] Preferably, the opening and closing mechanism includes a driving component, a sliding frame, and a connecting frame. The sliding frame is rotatably connected to the additional frame. One end of the connecting frame is rotatably connected to the opening and closing cover, and the other end is rotatably connected to the sliding frame. The driving component is used to drive the sliding frame to slide along its own sliding direction.

[0013] By adopting the above technical solution and specifically setting the opening and closing mechanism, when the driving component drives the sliding frame to slide, the sliding frame can drive the connecting frame to move, thereby causing the end of the connecting frame away from the sliding frame to drive the opening and closing cover to rotate, thereby causing the opening and closing cover to gradually open, effectively facilitating the opening and closing of the opening and closing cover by relevant personnel.

[0014] Preferably, the mounting bracket is slidably connected to the additional bracket, and the sliding direction extends beyond the additional bracket. The opening and closing mechanism also includes a linkage and a pusher. The pusher is slidably connected to the additional bracket, and the sliding direction is the same as the sliding direction of the mounting bracket. The mounting bracket is located on the sliding path of the pusher. The sliding bracket drives the pusher to slide through the linkage.

[0015] By adopting the above technical solution and configuring the linkage and push frame, when the sliding frame slides under the drive of the drive component during the opening and closing process of the cover, the sliding frame can drive the push frame to slide through the linkage. This causes the push frame to slide when it comes into contact with the mounting frame, causing the end of the mounting frame to gradually slide out of the additional frame. This achieves linkage between the mounting frame and the cover, effectively facilitating the sliding of the mounting frame out of the additional frame by relevant personnel, and thus facilitating the cleaning of the cleaning rollers on the mounting frame and simplifying the operation for relevant personnel.

[0016] Preferably, the linkage component includes a linkage frame, one end of which is rotatably connected to the sliding frame, and the other end of which is rotatably connected to the push frame.

[0017] By adopting the above technical solution and configuring the linkage frame, when the sliding frame slides under the drive of the drive component during the opening and closing process of the cover, the sliding frame can drive the linkage frame to slide, thereby causing the linkage frame to move away from the end of the sliding frame, driving the push frame to slide, and thus causing the push frame to move closer to the mounting frame and push the mounting frame to slide. This effectively realizes the linkage between the sliding frame and the push frame, thereby saving the active device for driving the push frame to slide and effectively facilitating the operation of relevant personnel.

[0018] Preferably, the cleaning mechanism further includes an adsorption assembly, each of which includes an adsorption fan and several adsorption racks. The adsorption racks are arranged in a one-to-one correspondence with the cleaning rollers. The adsorption racks are located on the side of the corresponding cleaning roller away from the machine body. The bottom of the adsorption rack is open. The adsorption fan is connected to one side of the corresponding adsorption rack through a hose.

[0019] By adopting the above technical solution and configuring the adsorption components, the adsorption fan can generate suction when working, thereby adsorbing dust on the leather on one side of the cleaning roller, reducing the amount of dust accumulated on the leather, improving the cleaning effect on the leather, effectively ensuring the cleanliness of the leather surface, thus ensuring the softening effect, and also effectively ensuring the cleanliness of the machine body.

[0020] Preferably, each of the aforementioned hole seats is slidably connected to the body, and the sliding direction of each of the aforementioned hole seats is the same as the oscillation direction of the nail seat. The body is also provided with an adjustment mechanism, which is used to drive each hole seat to slide along its own sliding direction, thereby adjusting the distance between the hole seat and the nail seat.

[0021] By adopting the above technical solution and setting the adjustment mechanism, the adjustment mechanism can drive each hole seat to slide along its own sliding direction, thereby adjusting the distance between the hole seat and the nail seat, and thus adjusting the degree of softening of the leather. This effectively improves the applicability and softening effect of this application, and also facilitates the control by relevant personnel.

[0022] Preferably, the machine body is provided with a detection module and a control module at one end along its own conveying direction. The detection module is used to detect the thickness, moisture content and hardness of the soft leather to be stretched, and the control module is used to control the distance between the hole seat and the nail seat through the adjustment mechanism based on the data detected by the detection module.

[0023] By adopting the above technical solution and configuring the detection module and control module, the detection module can detect the thickness, moisture content, and hardness of the leather to be softened. Based on the detected thickness, moisture content, and hardness data, the control module can control the adjustment mechanism to move the hole seat, thereby controlling the distance between the hole seat and the nail seat and adjusting the degree of softening of the leather. This ensures that the degree of softening is consistent with the actual data of the leather being tested, thus improving the softening effect of the leather.

[0024] Preferably, the width direction of the nail holder is used as the row and the length direction of the nail holder is used as the column, and the number of nail rods on each nail holder is set to 4 rows and 14 columns.

[0025] By adopting the above technical solution and setting the number of top rods, the 4 rows and 14 columns of nail rods can soften the leather in cooperation with the nail seats, improve the softening effect of the leather, and thus ensure the final processing quality of the leather.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The control of two variable frequency motors allows the upper and lower conveyor belts to be controlled by separate variable frequency motors, enabling relevant personnel to control the conveying speed of the upper and lower conveyor belts by controlling the two variable frequency motors. This allows for precise adjustment of the conveying speed ratio between the upper and lower conveyor belts, effectively increasing the applicability of this application and enhancing the softening effect on the leather, while facilitating the control by relevant personnel. 2. The cleaning mechanism is designed so that the rotating component can drive the cleaning rollers to rotate, thereby cleaning both the upper and lower surfaces of the leather to be softened. This effectively reduces the amount of debris and dust on the upper and lower surfaces of the leather to be softened, thus ensuring the cleanliness of the machine and the softening effect on the leather. 3. The configuration of the detection module and control module enables the detection module to detect the thickness, moisture content, and hardness of the leather to be softened. Based on the detected thickness, moisture content, and hardness data, the control module controls the adjustment mechanism to move the hole seat, thereby controlling the distance between the hole seat and the nail seat and adjusting the degree of softening of the leather. This ensures that the degree of softening is consistent with the actual data of the leather being tested, thus improving the softening effect of the leather. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the overall structure of the leather vibration and softening machine in Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram illustrating the structure of a variable frequency motor in Embodiment 1 of this application.

[0029] Figure 3 This is a schematic diagram illustrating the overall structure of the leather vibration and softening machine in Embodiment 2 of this application.

[0030] Figure 4 This is a schematic diagram illustrating the structure of the adsorption fan in Embodiment 2 of this application.

[0031] Figure 5 This is a schematic diagram illustrating the opening and closing mechanism in Embodiment 2 of this application.

[0032] Figure 6 This is a schematic diagram illustrating the opening and closing mechanism in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Upper conveyor belt; 12. Lower conveyor belt; 13. Variable frequency motor; 14. Additional frame; 15. Opening and closing cover; 2. Vibration mechanism; 3. Hole seat; 4. Nail seat; 41. Nail rod; 5. Adjustment mechanism; 6. Detection module; 7. Control module; 8. Opening and closing mechanism; 81. Drive component; 82. Sliding frame; 83. Connecting frame; 84. Linkage component; 841. Linkage frame; 85. Push frame; 9. Cleaning mechanism; 91. Mounting frame; 911. Protrusion; 92. Rotating component; 93. Cleaning roller; 94. Adsorption component; 941. Adsorption fan; 942. Dust collection box; 943. Adsorption frame. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] Example 1: Embodiment 1 of this application discloses a leather vibration stretching machine. (Refer to...) Figure 1 and Figure 2 The leather vibrating and softening machine includes a body 1, within which are an upper conveyor belt 11, a lower conveyor belt 12, and a vibrating mechanism 2. Several hole seats 3 are arranged within the space enclosed by the upper conveyor belt 11, and several nail seats 4 are arranged within the space enclosed by the lower conveyor belt 12. The body 1 also has two variable frequency motors 13, one for controlling the conveying speed of the upper conveyor belt 11 and the other for controlling the conveying speed of the lower conveyor belt 12.

[0036] Reference Figure 2 Both the upper conveyor belt 11 and the lower conveyor belt 12 are closed and are shaped by several guide rollers, thus creating an internal space for the placement of the hole seat 3 and the nail seat 4. The body 1 of each variable frequency motor 13 is fixedly mounted to the body 1 by bolts. Each variable frequency motor 13 is connected to one of the guide rollers of the corresponding upper conveyor belt 11 or lower conveyor belt 12 via a belt and pulley, so that the upper conveyor belt 11 and the lower conveyor belt 12 can be driven by different variable frequency motors 13.

[0037] Reference Figure 2 In this embodiment, the number of hole seats 3 and nail seats 4 is four, and they are all distributed along the length direction of the machine body 1. Each hole seat 3 is disposed within the space formed by the upper conveyor belt 11, and both ends of the upper conveyor belt 11 extend outwards along the length direction. Each hole seat 3 is slidably connected to the machine body 1 via a slide rail, and the sliding direction is set to the height direction of the machine body 1. An adjustment mechanism 5 is also provided inside the machine body 1. In this embodiment, the number of adjustment mechanisms 5 is four, and they are arranged one-to-one with the hole seats 3.

[0038] Reference Figure 2In this embodiment, each adjusting mechanism 5 is configured as a combination of a geared motor and a lead screw. Each geared motor is fixedly mounted on the machine body 1, and the output shaft of each geared motor extends downward along the height direction of the machine body 1, and is fixedly connected to the top of the corresponding lead screw via a coupling. Each lead screw is rotatably connected to the machine body 1 via a bearing, and the bottom end of each lead screw passes through the corresponding hole seat 3 and is threadedly connected to the corresponding hole seat 3 to drive the sliding of the corresponding hole seat 3. In other embodiments, the adjusting mechanism 5 may also be configured as an electric push rod to increase the support performance of the hole seat 3.

[0039] Reference Figure 2 Each nail seat 4 is located within the space formed by the lower conveyor belt 12 and is slidably connected to the machine body 1, with the sliding direction being the height direction of the machine body 1. In this embodiment, the number of oscillation mechanisms 2 is set to four, and they are arranged one-to-one with the nail seats 4. Each oscillation mechanism 2 is a combination structure of a geared motor and a crank-slider mechanism, so that the geared motor can drive the crank to rotate in a circular motion, so that the rocker arm drives the slider (i.e., the corresponding nail seat 4) to slide back and forth along the height direction of the machine body 1, thereby driving the nail seat 4. This oscillation mechanism 2 is prior art, so it will not be described in detail here.

[0040] Reference Figure 2 Each nail seat 4 is provided with several nail rods 41, arranged in rows along the width and columns along the length. Each nail seat 4 has 4 rows and 14 columns of nail rods 41, evenly distributed to ensure a softening effect on the leather. Each hole seat 3 has holes at its bottom corresponding to each nail rod 41, so that when the nail seat 4 moves upward, each nail rod 41 can be inserted into its corresponding hole to soften the leather.

[0041] Reference Figure 1 An extension frame 14 is provided at one end of the machine body 1 along its own conveying direction (i.e., length direction). The extension frame 14 is fixedly connected to the machine body 1 by welding. The extension frame 14 is also equipped with a detection module 6 and a control module 7. In this embodiment, the detection module 6 includes an infrared ranging sensor, an infrared moisture meter, and an electronic softness tester. The control module 7 is a PLC controller, which is placed on the ground. The infrared ranging sensor, infrared moisture meter, and electronic softness tester are all electrically connected to the PLC controller.

[0042] Reference Figure 1The infrared rangefinder, infrared moisture meter, and electronic softness tester are all fixedly mounted on the mounting bracket 14. The infrared emitter of the infrared rangefinder is vertically downward, facing the top wall of the mounting bracket 14. The infrared rangefinder detects the distance between its emitter and the object first illuminated by infrared light, and feeds this distance value back to the PLC controller. The PLC controller also stores an initial distance value, which is the distance detected by the infrared rangefinder when no object is placed on the mounting bracket 14. The PLC controller receives the distance value detected by the infrared rangefinder, subtracts the detected distance value from the initial distance value, and takes the absolute value to obtain the leather thickness value.

[0043] Reference Figure 1 The infrared moisture meter has its irradiation end set vertically downwards and is used to emit infrared rays for detection onto the surface of the leather. It receives and measures the intensity of the infrared rays reflected by the leather and calculates the difference between the detected intensity and the initial intensity to obtain the intensity change. The infrared moisture meter also has a correlation between the intensity change and the moisture content, so as to calculate the moisture content of the leather based on the intensity change. The PLC controller is used to receive the calculated moisture content.

[0044] Reference Figure 1 The electronic softness tester is used to apply a standard load to the surface of leather and measure the deformation of the leather under pressure. The electronic softness tester also has a correspondence between deformation and softness / hardness, so as to calculate the softness / hardness of the leather based on the new measured variables. The PLC controller is used to receive the calculated softness / hardness.

[0045] Reference Figure 1 and Figure 2 Each adjusting mechanism 5 has an active component (a geared motor in this embodiment) electrically connected to a PLC controller. The PLC controller has a corresponding relationship between the height of the hole seat 3 and the leather thickness, moisture content and hardness. After receiving the leather thickness, moisture content and hardness data, the PLC controller calculates the specific data of the height of the hole seat 3 and controls the adjusting mechanism 5 to drive the hole seat 3 to slide based on the specific data. This causes the hole seat 3 to move to the calculated height position, thereby adjusting the distance between the hole seat 3 and the nail seat 4 to adapt to the specific leather parameters and ensure the softening effect of the leather.

[0046] The implementation principle of the leather vibration softening machine in Embodiment 1 of this application is as follows: the control of two variable frequency motors 13 enables the upper conveyor belt 11 and the lower conveyor belt 12 to be controlled by separate variable frequency motors 13. This allows relevant personnel to control the conveying speed of the upper conveyor belt 11 and the lower conveyor belt 12 by controlling the two variable frequency motors 13, thereby enabling precise adjustment of the conveying speed ratio between the upper conveyor belt 11 and the lower conveyor belt 12. This effectively increases the applicability of this application, while also improving the softening effect on the leather and facilitating the control by relevant personnel.

[0047] Example 2: The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 3 and Figure 4 The extension frame 14 has an opening at its top end near the body 1, and an opening / closing cover 15 is also provided on the extension frame 14 to cover the opening. The end of the opening / closing cover 15 near the body 1 is rotatably connected to the extension frame 14 via a pin. The extension frame 14 is also provided with an opening / closing mechanism 8. In this embodiment, there are two opening / closing mechanisms 8, located at both ends of the extension frame 14 along its length.

[0048] Reference Figure 3 and Figure 5 Each opening and closing mechanism 8 includes a driving component 81, a sliding frame 82, and a connecting frame 83. In this embodiment, the opening and closing components are all configured as cylinders. The cylinder body of each cylinder is fixedly mounted on the extension frame 14, and the extension direction of the piston rod of each cylinder is set to the width direction of the extension frame 14 (i.e., the leather conveying direction). The piston rod of each cylinder is fixedly connected to the corresponding sliding frame 82.

[0049] Reference Figure 3 and Figure 5 Each sliding frame 82 is slidably connected to the additional frame 14 via a slide rail, and the sliding direction is always the width direction of the additional frame 14. One end of each connecting frame 83 is rotatably connected to the corresponding sliding frame 82 via a pin, and the other end of each connecting frame 83 is rotatably connected to the opening and closing cover 15 via a pin, so that when the sliding frame 82 slides, it can drive the opening and closing cover 15 to rotate through the connecting frame 83.

[0050] Reference Figure 3 , Figure 4 and Figure 6 The machine body 1 is also equipped with a cleaning mechanism 9. In this embodiment, the number of cleaning mechanisms 9 is set to two, and the two cleaning mechanisms 9 are respectively located at both ends of the extension frame 14 along its own length direction (i.e., on both sides of the conveying direction). Each cleaning mechanism 9 includes a mounting frame 91, a rotating component 92, and a plurality of cleaning rollers 93. Each mounting frame 91 is located between the machine body 1 and the aforementioned electronic softness tester.

[0051] Reference Figure 3 and Figure 5 Each mounting bracket 91 has one end located inside the extension bracket 14 and is slidably connected to the extension bracket 14 via a slide rail. The sliding direction is the width direction of the extension bracket 14, and each bracket can slide out of the extension bracket 14. Each mounting bracket 91 has a protrusion 911 on the side away from the body 1, and the protrusion 911 is integrally formed with the mounting bracket 91. Each opening and closing mechanism 8 also includes a linkage component 84 and a push frame 85, and each linkage component 84 includes a linkage frame 841.

[0052] Reference Figure 3 and Figure 5 Each linkage frame 841 has one end rotatably connected to the top of the corresponding sliding frame 82 via a pin, and the other end rotatably connected to the corresponding push frame 85 via a pin. Each push frame 85 is slidably connected to the addition frame 14 via a slide rail, and the sliding direction is the width direction of the addition frame 14. Each protrusion 911 is located on the sliding path of the corresponding push frame 85.

[0053] Reference Figure 3 and Figure 5 In the initial state, when the opening and closing cover 15 is closed, the sliding frame 82 is located at the end of its sliding path away from the opening and closing cover 15, and the mounting frame 91 is embedded in the extension frame 14. When the driving component 81 drives the sliding frame 82 to slide closer to the opening and closing cover 15, the sliding frame 82 drives the opening and closing cover 15 to rotate upward through the corresponding connecting frame 83, thereby causing the opening and closing cover 15 to gradually open.

[0054] Reference Figure 3 and Figure 5 During this process, the sliding frame 82 drives the linkage frame 841 to slide, thereby causing the linkage frame 841 to move away from one end of the sliding frame 82, which in turn drives the push frame 85 to slide. After the push frame 85 comes into contact with the protrusion 911, it pushes the mounting frame 91 to slide, thereby causing the end of the mounting frame 91 to gradually slide out of the additional frame 14, thus facilitating the disassembly of the mounting frame 91 by relevant personnel.

[0055] Reference Figure 4 and Figure 6 Each mounting bracket 91 is equipped with two cleaning rollers 93, which are distributed along the height of the mounting bracket 91, thus positioned on the upper and lower sides of the leather. Both ends of each cleaning roller 93 are rotatably connected to the corresponding mounting bracket 91 via bearings. Each cleaning roller 93 has multiple bristles on its sidewall to clean the surface of the leather upon contact.

[0056] Reference Figure 4 and Figure 6In this embodiment, the rotating assembly 92 is configured with two geared motors, each corresponding to a cleaning roller 93. The output shaft of each geared motor is fixedly connected to the end of the corresponding cleaning roller 93 via a coupling, thereby driving the rotation of the cleaning roller 93.

[0057] Reference Figure 3 , Figure 4 and Figure 6 Each cleaning mechanism 9 also includes an adsorption assembly 94, which includes an adsorption fan 941, a dust collection box 942, and several adsorption racks 943. Each adsorption assembly 94 contains two adsorption racks 943, located on the upper and lower sides of the leather respectively, and corresponding one-to-one with the cleaning rollers 93. Each adsorption rack 943 is fixedly connected to a corresponding mounting bracket 91 and is located on the side of the corresponding cleaning roller 93 closest to the electronic softness tester.

[0058] Reference Figure 4 and Figure 6 Each suction rack 943 has an opening on the side closest to the leather to form a chamber inside. One end of each suction rack 943 is fitted with a flexible hose, the end of which passes through the mounting frame 91 and connects to one end of the corresponding dust collection box 942. The other end of each dust collection box 942 is connected to a suction fan 941 via a pipe. Each suction fan 941 is placed on the ground to generate suction, causing the dust in the additional rack 14 to be drawn into the dust collection box 942.

[0059] The implementation principle of a leather vibration softening machine in Embodiment 2 of this application is as follows: When the leather after inspection is gradually conveyed into the auxiliary frame 14, the adsorption fan 941 adsorbs dust and debris on the surface of the leather through the adsorption frame 943. During this process, the rotating component 92 drives the corresponding cleaning roller 93 to rotate, thereby brushing off the dust remaining on the surface of the leather. The brushed-off dust is then adsorbed by the adsorption frame 943 as the cleaning roller 93 rotates, and then enters the dust collection box 942 to clean the leather.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A leather vibrating and softening machine, comprising a body (1), wherein the body (1) is provided with an upper conveyor belt (11), a lower conveyor belt (12), a plurality of hole seats (3) and a plurality of nail seats (4), characterized in that: The machine body (1) is also equipped with two variable frequency motors (13), one of which is used to control the conveying speed of the upper conveyor belt (11), and the other is used to control the conveying speed of the lower conveyor belt (12). The machine body (1) is also provided with an extension frame (14) at one end along its own conveying direction. The extension frame (14) is also provided with a cleaning mechanism (9). The cleaning mechanism (9) includes a mounting frame (91), a rotating component (92) and a plurality of cleaning rollers (93). The mounting frame (91) is provided on the extension frame (14). The plurality of cleaning rollers (93) are respectively located on the upper and lower sides of the leather. Each cleaning roller (93) is rotatably connected to the mounting frame (91). Each cleaning roller (93) has bristles on its side wall so that the bristles contact the surface of the leather. The rotating component (92) is used to drive each cleaning roller (93) to rotate. The top of the addition frame (14) has an opening, and the addition frame (14) is also provided with an opening and closing cover (15). One end of the opening and closing cover (15) is rotatably connected to the addition frame (14). The opening and closing cover (15) is used to cover the opening at the top of the addition frame (14). The addition frame (14) is also provided with an opening and closing mechanism (8). The opening and closing mechanism (8) is used to drive the opening and closing cover (15) to rotate. The opening and closing mechanism (8) includes a driving component (81), a sliding frame (82), and a connecting frame (83). The sliding frame (82) is slidably connected to the additional frame (14). One end of the connecting frame (83) is rotatably connected to the opening and closing cover (15), and the other end is rotatably connected to the sliding frame (82). The driving component (81) is used to drive the sliding frame (82) to slide along its own sliding direction. The mounting bracket (91) is slidably connected to the additional bracket (14), and the sliding direction extends beyond the additional bracket (14). The opening and closing mechanism (8) also includes a linkage (84) and a pusher (85). The pusher (85) is slidably connected to the additional bracket (14), and the sliding direction is the same as the sliding direction of the mounting bracket (91). The mounting bracket (91) is located on the sliding path of the pusher (85). The sliding bracket (82) drives the pusher (85) to slide through the linkage (84).

2. The leather vibration stretching machine according to claim 1, characterized in that: The linkage component (84) includes a linkage frame (841), one end of which is rotatably connected to the sliding frame (82), and the other end is rotatably connected to the push frame (85).

3. The leather vibration stretching machine according to claim 1, characterized in that: The cleaning mechanism (9) also includes an adsorption assembly (94), each of which includes an adsorption fan (941) and several adsorption racks (943). The adsorption racks (943) are arranged in a one-to-one correspondence with the cleaning rollers (93). The adsorption racks (943) are located on the side of the corresponding cleaning rollers (93) away from the machine body (1). The bottom of the adsorption racks (943) is open. The adsorption fan (941) is connected to one side of the corresponding adsorption rack (943) through a hose.

4. A leather vibration stretching machine according to claim 1, characterized in that: Each of the aforementioned hole seats (3) is slidably connected to the body (1), and the sliding direction of each of the aforementioned hole seats (3) is the same as the oscillation direction of the nail seat (4). An adjustment mechanism (5) is also provided inside the body (1). The adjustment mechanism (5) is used to drive each hole seat (3) to slide along its own sliding direction, thereby adjusting the distance between the hole seat (3) and the nail seat (4).

5. A leather vibration stretching machine according to claim 4, characterized in that: The machine body (1) is provided with a detection module (6) and a control module (7) at one end along its own conveying direction. The detection module (6) is used to detect the thickness, moisture content and hardness of the soft leather to be stretched. The control module (7) is used to control the distance between the hole seat (3) and the nail seat (4) through the adjustment mechanism (5) based on the data detected by the detection module (6).

6. A leather vibration stretching machine according to claim 1, characterized in that: The width direction of the nail seat (4) is the row, and the length direction of the nail seat (4) is the column. The number of nail rods (41) on each nail seat (4) is set to 4 rows and 14 columns.

Images