Automatic leather pulling device

Abstract

The utility model discloses an automatic leather pulling device, which belongs to the technical field of leather transfer and comprises a mounting table, a lifting mechanism and a transverse moving mechanism, the clamping hand is provided with a rotating shaft part and a bending part, and the rotating shaft part is rotationally connected to the mounting table; the pressing piece is mounted on one side of the mounting table through a first bracket; the rotary driving piece is mounted on the mounting table so as to drive the clamping hand to rotate between a first position and a second position around the rotating shaft part; at the first position, a gap is formed between the clamping hand and the pressing piece, so that at least part of leather can enter the gap; and at the second position, the bending part forces the part, positioned at the gap, of the leather material to abut against the pressing piece. According to the automatic leather pulling device, automatic leather grabbing, moving and laying operation can be achieved, the manual operation time is greatly shortened, and the labor intensity is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of leather material transfer technology, and in particular to an automatic leather-sliding device. Background Technology

[0002] Currently, in the furniture industry, the inspection of incoming cowhide is all done manually, including the cutting and stretching of the leather. This manual stretching process consumes a significant amount of time and manpower. Furthermore, it is prone to problems such as low precision and non-standard operation, affecting product quality and production efficiency.

[0003] In summary, existing technologies still have gaps in the automation of leather handling, especially when the volume of cowhide to be inspected is large, which greatly affects work efficiency. Therefore, it is of great practical significance to provide an automated device that can realize the handling of leather materials. Utility Model Content

[0004] This utility model provides an automatic skin-lifting device to solve the problems in the prior art.

[0005] This utility model embodiment adopts the following technical solution: an automatic leather stretching device, comprising: a mounting platform driven by a lifting mechanism and a lateral movement mechanism to move laterally and longitudinally within a certain range of space; a gripper having a rotating shaft and a bending portion, the rotating shaft being rotatably connected to the mounting platform; a pressing member mounted on one side of the mounting platform via a first bracket; and a rotation drive member mounted on the mounting platform to drive the gripper to rotate around the rotating shaft between a first position and a second position; in the first position, there is a gap between the gripper and the pressing member, so that at least part of the leather material can enter the gap; in the second position, the bending portion forces the portion of the leather material located in the gap to abut against the pressing member. This automatic leather stretching device can realize automated leather material gripping, moving, and laying operations, greatly reducing the time and labor intensity of manual operation.

[0006] Preferably, the clamping member is configured as a long shaft, and in the second position, the portion of the leather located at the gap abuts against the circumferential wall of the long shaft. The smooth surface of the long shaft prevents damage to the leather during clamping.

[0007] Preferably, the first bracket is configured in two sets, with each end of the long shaft rotatably connected to a rotating hole in one of the two first brackets. This rotatable connection avoids excessive friction on the leather material even with slight rotation of the long shaft.

[0008] Preferably, the skin-lifting device is located at the discharge end of the transmission belt, which is used to transport the skin material. In the first position, the bent portion is located above the pressing member and on the side away from the transmission belt.

[0009] Preferably, the rotary drive includes a hinge base, a second bracket, and a linear drive source. The hinge base is fixedly mounted on the mounting platform, the second bracket is hinged to the hinge base, the linear drive source is fixedly mounted on the second bracket, and the output end of the linear drive source is hinged to the gripper. The linear drive source operates to drive the gripper to rotate around the rotating shaft between a first position and a second position.

[0010] Preferably, the leather-lifting device further includes a support platform, and the lifting mechanism and the traversing mechanism drive the mounting platform to move so as to lay the leather on the support platform.

[0011] Preferably, the lateral movement mechanism includes: two sets of first profile frames, arranged at equal heights on opposite sides of the support platform, the two sets of first profile frames being driven to move up and down by the lifting mechanism; two sets of first linear guides, respectively mounted on the two first profile frames, the two sides of the fixed platform being fixedly mounted on the execution ends of the two first linear guides; and a first driving structure for driving the fixed platform to move along the two first linear guides. The structural design of the lateral movement mechanism ensures that the upper surface of the support platform is completely unobstructed, preventing any obstruction to the pulling of the leather during the leather-pulling process.

[0012] Preferably, the first drive structure includes a worm gear reducer, a rotary drive source, and a rotary shaft; the worm gear reducer is fixedly mounted on a fixed platform, the output shaft of the rotary drive source is drivenly connected to the input end of the worm gear reducer, the rotary shaft is drivenly connected to the output end of the worm gear reducer, and gears are installed at both ends of the rotary shaft, with each gear meshing with a rack on one of the two first profile frames; the rotary drive source operates to drive the gears to rotate and move along the corresponding racks.

[0013] Preferably, a guide rod is installed between the two first profile holders. When the leather moves laterally with the gripper, the guide rod supports the rear portion of the leather. The guide rod ensures that the leather remains relatively horizontal during movement, thus preventing it from sagging at the rear and failing to lie flat on the support platform.

[0014] Preferably, the lifting mechanism includes: a second profile frame, at least two sets of which are respectively located on opposite sides of the support platform, each set of the second profile frame having a circular guide rail mounted longitudinally, and the transverse mechanism being at least partially slidably connected to the circular guide rail; and a second driving structure for driving the transverse mechanism to move up and down along the circular guide rail.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0016] Firstly, compared with the traditional manual inspection, material cutting and leather laying method, this automatic leather-laying device can realize automated leather grabbing, moving and laying operations, which greatly reduces the time and labor intensity of manual operation. When mass-producing furniture and other products that require leather laying, it can significantly improve production efficiency and shorten the production cycle.

[0017] Secondly, the mounting platform of the device can be flexibly adjusted according to different working scenarios and leather laying requirements. The grippers and clamping parts can also operate on leather of different thicknesses and sizes, making the device highly versatile. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the transverse movement mechanism and the mounting platform of this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of section A in the image;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the clamp and the pressing component of this utility model;

[0023] Figure 5 This is a partial structural diagram of the mounting platform of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the lifting mechanism and the lateral movement mechanism of this utility model.

[0025] Figure Labels

[0026] 1-Mounting platform; 2-Lifting mechanism; 21-Second profile frame; 22-Circular guide rail; 23-Sprocket and chain lifting assembly; 3-Transverse movement mechanism; 31-First profile frame; 32-First linear guide rail; 33-Worm reducer; 34-Rotary drive source; 35-Rotary shaft; 36-Gear; 37-Rack; 38-Guide rod; 4-Holder; 41-Rotating shaft; 42-Bending part; 5-Clamping component; 51-First bracket; 511-Rotating hole; 6-Rotary drive component; 61-Hinge seat; 62-Second bracket; 63-Linear drive source; 7-Transmission belt; 8-Bearing platform. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] Reference Figures 1 to 6 As shown, this utility model embodiment provides an automatic skin-lifting device, which mainly includes a mounting platform 1, a gripper 4, a pressing component 5, and a rotary drive component 6.

[0030] The mounting platform 1 is driven by the lifting mechanism 2 and the lateral movement mechanism 3 to move laterally and longitudinally within a certain range of space to adapt to different work scenarios and specific needs of leather laying. For example, in furniture manufacturing, when faced with material cutting areas of different sizes and various target positions that need to be laid with leather, the mounting platform 1 can accurately adjust its own position to create favorable spatial conditions for the gripper 4 to grab the leather, the clamping part 5 to fix the leather, and subsequent operations such as moving the leather.

[0031] The gripper 4 has a pivot portion 41 and a bending portion 42 (the bending portion can also be arc-shaped or other relatively smooth structures). The pivot portion 41 is rotatably connected to the mounting platform 1. (In actual production, the gripper 4 is configured in two sets, such as...) Figure 2 (As shown); the clamping member 5 is mounted on one side of the mounting platform 1 via the first bracket 51; the rotation drive member 6 is mounted on the mounting platform 1 to drive the gripper 4 to rotate around the pivot 41 between a first position and a second position; therefore, the gripper 4 can rotate relative to the mounting platform 1 around the pivot 41.

[0032] Specifically, refer to Figure 2 and Figure 5 As shown, the rotary drive 6 includes a hinge base 61, a second bracket 62, and a linear drive source 63. The hinge base 61 is fixedly mounted on the mounting platform 1, the second bracket 62 is hinged to the hinge base 61, and the linear drive source 63 is fixedly mounted on the second bracket 62. The output end of the linear drive source 63 is hinged to the gripper 4. The linear drive source 63 operates to drive the gripper 4 to rotate around the rotating shaft 41 between a first position and a second position.

[0033] In the first position, there is a gap between the clamp 4 and the clamping member 5, allowing at least a portion of the leather to enter the gap; in the second position, the bent portion 42 forces the portion of the leather located in the gap against the clamping member 5. In some practical applications, the clamping member 5 is configured as a long shaft, and in the second position, the portion of the leather located in the gap abuts against the circumferential wall of the long shaft. The smooth surface of the long shaft avoids damage to the leather during clamping and ensures relatively consistent clamping force on the entire leather.

[0034] In actual operation, one end of the leather is first moved or placed into the gap between the gripper 4 and the clamping member 5. At this time, the gripper 4 is in the first position. This gap between the gripper 4 and the clamping member 5 facilitates the entry of the leather, preparing for the subsequent clamping operation. Subsequently, the rotary drive 6 starts to work, driving the gripper 4 to rotate around the pivot 41 from the first position to the second position. During this process, the bent part 42 of the gripper 4 rotates, forcing the portion of the leather located in the gap to press against the clamping member 5, thereby tightly clamping the end of the leather between the bent part 42 of the gripper 4 and the clamping member 5.

[0035] After the end of the leather is clamped, the lifting mechanism 2 and the lateral movement mechanism 3 of the mounting platform 1 work together to move the mounting platform 1 laterally and longitudinally along a pre-set path (determined according to the material feeding area, target laying position, etc.). Since one end of the leather is clamped and fixed on the mounting platform 1 by the clamp 4 and the pressing part 5, the movement of the mounting platform 1 will drive the entire leather to move synchronously, thereby accurately pulling or moving the leather to the set position, achieving the purpose of automatic cowhide laying. It simulates the pulling and laying action of manual cowhide laying, but is more precise and efficient.

[0036] In this embodiment, compared with the traditional manual inspection, material cutting and leather laying method, the automatic leather laying device can realize the automated leather grabbing, moving and laying operation, which greatly reduces the time and labor intensity of manual operation. When mass-producing furniture and other products that require leather laying (not only applicable to the laying of cowhide, but also for other sheet or fabric structures, this equipment can significantly improve production efficiency and shorten the production cycle).

[0037] In addition, the mounting platform 1 of the device can be flexibly adjusted in position according to different working scenarios and leather laying requirements. The clamps 4 and pressing parts 5 can also operate on leather of different thicknesses and sizes, making the device highly versatile.

[0038] In some practical applications, the first bracket 51 is configured as two sets, with the two ends of the long shaft respectively rotatably connected to the rotation holes 511 of the two first brackets 51 (e.g., Figure 3In this process, by rotatably connecting the long shaft to the first bracket 51, the slight rotation of the long shaft during the process of inserting the leather into the gap and moving the clamp 4 from the first position to the second position can avoid excessive friction on the leather and prevent damage to the leather.

[0039] In some practical applications, since the skin-lifting device is mainly used for automated processing, the skin-lifting device is set at the discharge end of the transmission belt 7, which is used to transport the skin material. The characteristic is that, in the first position, the bent part 42 is located above the clamping member 5 and away from the transmission belt 7, so that the skin material falling from the discharge end of the transmission belt 7 can smoothly enter the gap between the clamp 4 and the clamping member 5.

[0040] In some practical applications, based on any of the above embodiments, the skin-lifting device further includes a support platform 8, and the lifting mechanism 2 and the lateral movement mechanism 3 drive the mounting platform 1 to move so as to lay the leather material on the support platform 8.

[0041] Specifically, the transverse movement mechanism 3 includes: two sets of first profile frames 31 arranged at the same height on opposite sides of the support platform 8, the two sets of first profile frames 31 being driven to move up and down by the lifting mechanism 2; two sets of first linear guide rails 32 arranged and respectively installed on the two first profile frames 31, the two sides of the fixed platform being respectively fixedly installed on the execution ends of the two first linear guide rails 32; and a first driving structure to drive the fixed platform to move along the two first linear guide rails 32.

[0042] Specifically, refer to Figure 2 As shown, the first driving structure includes a worm gear reducer 33, a rotary drive source 34, and a rotary shaft 35. The worm gear reducer 33 is fixedly mounted on a fixed platform. The output shaft of the rotary drive source 34 is drivenly connected to the input end of the worm gear reducer 33. The rotary shaft 35 is drivenly connected to the output end of the worm gear reducer 33. Gears 36 are installed at both ends of the rotary shaft 35, and the two gears 36 are respectively meshed with racks 37 on the two first profile frames 31. The rotary drive source 34 operates to drive the gears 36 to rotate and move along the corresponding racks 37.

[0043] In practical operation, when the mounting platform 1 needs to be moved to lay the leather, the rotary drive source 34 is activated. Its output shaft drives the input end of the worm gear reducer 33 to rotate. After the worm gear reducer 33 reduces speed and increases torque, the power is transmitted to the rotating shaft 35 to make it rotate. The gears 36 at both ends of the rotating shaft 35 rotate accordingly. Since the gears 36 mesh with the rack 37 on the first profile frame 31, they will move linearly along the rack 37 under the action of the rotation of the gears 36, thereby pushing the fixed platform to move along the first linear guide rail 32. This lateral movement method achieved by the transmission of gears 36 and rack 37 has the characteristics of high precision and stable transmission. It can accurately control the horizontal position of the fixed platform and the clamps 4, pressing parts 5 and other components on the mounting platform 1, ensuring that the leather can be laid on the bearing platform 8 according to the predetermined trajectory and position.

[0044] Furthermore, due to the structural design of the entire transverse mechanism 3, the upper surface of the support platform 8 is completely unobstructed, ensuring that the leather is not hindered during the pulling process. This further guarantees the smooth operation of the leather laying process and helps improve the efficiency and quality of leather laying. Additionally, it should be noted that the support platform 8 shown in the figure is a fixed installation. Depending on the actual application requirements, a support platform 8 with rollers or a movable carrier such as a trolley can be used instead to facilitate the transfer of a certain amount of leather after it has been laid flat.

[0045] In some practical applications, refer to Figure 3 and Figure 6 As shown, a guide rod 38 is installed between the two first profile frames 31. When the leather moves laterally with the clamps 4, the guide rod 38 supports the rear part of the leather. Specifically, when the leather moves laterally with the clamps 4, the front end of the leather is clamped by the clamps 4 and moves with the clamps 4. However, the rear part of the leather, due to its length and weight, is prone to sagging without support. The guide rod 38 plays a crucial role here. It supports the rear part of the leather, providing an upward support force to the rear of the leather, thus offsetting some of the sagging tendency caused by gravity. This allows the leather to maintain a relatively horizontal state during movement, preventing it from sagging and failing to lay flat on the support platform 8.

[0046] In some practical applications, based on any of the above embodiments, the lifting mechanism 2 includes a second profile frame 21 and a second drive structure. At least two sets of the second profile frames 21 are configured and located on opposite sides of the support platform 8. Each set of the second profile frames 21 is longitudinally mounted with a circular guide rail 22. The transverse movement mechanism 3 is at least partially slidably connected to the circular guide rail 22. The second drive structure drives the transverse movement mechanism 3 to move up and down along the circular guide rail 22. Specifically, the second drive structure is configured as a sprocket and chain lifting assembly 23. This sprocket and chain lifting assembly 23 is prior art. As shown in the figure, only the positions of the two sprockets are indicated; the chain is not shown. In actual applications, the chain is driven to connect to the two sprockets, and one part of the chain is connected to the first profile frame 31 via a connecting fitting. Thus, the movement of the chain drives the entire transverse movement mechanism 3 to move up and down.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automatic skin-lifting device, characterized in that, include: The mounting platform (1) is driven by a lifting mechanism (2) and a transverse mechanism (3) to move laterally and longitudinally within a certain range of space; The gripper (4) has a pivot (41) and a bending part (42), the pivot (41) being rotatably connected to the mounting table (1); The clamping element (5) is mounted on one side of the mounting platform (1) via the first bracket (51); A rotary drive (6) is mounted on the mounting table (1) to drive the gripper (4) to rotate around the pivot (41) between a first position and a second position; In the first position, there is a gap between the clamp (4) and the clamping member (5) so that at least part of the leather can enter the gap; in the second position, the bending part (42) forces the portion of the leather located in the gap to abut against the clamping member (5).

2. The automatic skin-lifting device according to claim 1, characterized in that, The clamping member (5) is configured as a long shaft, and in the second position, the portion of the leather located in the gap abuts against the circumferential wall of the long shaft.

3. An automatic skin-lifting device according to claim 2, characterized in that, The first bracket (51) is configured in two sets, and the two ends of the long shaft are respectively rotatably connected to the rotating holes (511) of the two first brackets (51).

4. An automatic leather stretching device according to claim 1, wherein the stretching device is disposed at the discharge end of a transmission belt (7) for conveying leather material, characterized in that, In the first position, the bend (42) is located above the clamping member (5) and on the side away from the transmission belt (7).

5. An automatic skin-lifting device according to claim 1, characterized in that, The rotary drive (6) includes a hinge base (61), a second bracket (62), and a linear drive source (63). The hinge base (61) is fixedly mounted on the mounting platform (1). The second bracket (62) is hinged to the hinge base (61). The linear drive source (63) is fixedly mounted on the second bracket (62). The output end of the linear drive source (63) is hinged to the gripper (4). The linear drive source (63) operates to drive the gripper (4) to rotate around the rotating shaft (41) between a first position and a second position.

6. An automatic skin-lifting device according to claim 1, characterized in that, The gripper (4) is configured in two sets.

7. An automatic skin-lifting device according to claim 1, characterized in that, The skin-lifting device also includes a support platform (8), and the lifting mechanism (2) and the traversing mechanism (3) drive the mounting platform (1) to move so as to lay the leather on the support platform (8).

8. An automatic skin-lifting device according to claim 7, characterized in that, The lateral movement mechanism (3) includes: The first profile frame (31) is configured with two sets and is set at the same height on opposite sides of the support platform (8). The two sets of the first profile frame (31) are driven to move up and down by the lifting mechanism (2). The first linear guide (32) is configured with two sets and is respectively installed on the two first profile frames (31). The two sides of the mounting platform (1) are respectively fixedly installed on the execution ends of the two first linear guides (32). The first drive structure drives the mounting platform (1) to move along two first linear guides (32).

9. An automatic skin-lifting device according to claim 8, characterized in that, The first drive structure includes a worm gear reducer (33), a rotary drive source (34), and a rotary shaft (35). The worm gear reducer (33) is fixedly mounted on the mounting platform (1). The output shaft of the rotary drive source (34) is connected to the input end of the worm gear reducer (33). The rotary shaft (35) is connected to the output end of the worm gear reducer (33). Gears (36) are installed at both ends of the rotary shaft (35), and the two gears (36) are respectively meshed with racks (37) on the two first profile frames (31). The rotary drive source (34) runs to drive the gears (36) to rotate and move along the corresponding racks (37).

10. An automatic skin-lifting device according to claim 8, characterized in that, A guide rod (38) is installed between the two first profile frames (31). When the leather moves laterally with the clamp (4), the guide rod (38) lifts the rear part of the leather.

11. An automatic skin-lifting device according to claim 7, characterized in that, The lifting mechanism (2) includes: The second profile frame (21) is configured with at least two sets located on opposite sides of the support platform (8). Each set of the second profile frame (21) is longitudinally mounted with a circular guide rail (22). The transverse movement mechanism (3) is at least partially slidably connected to the circular guide rail (22). The second drive structure drives the transverse mechanism (3) to move up and down along the circular guide rail (22).

12. An automatic skin-lifting device according to claim 11, characterized in that, The second drive structure is configured as a sprocket and chain lifting assembly (23).

Images