Leather punching machine capable of automatically adjusting hole distance

Abstract

The leather punching machine capable of automatically adjusting the hole distance comprises a supporting table, a supporting frame is fixedly connected to the top of the supporting table, a controller is installed at one end of the top of the supporting frame, an air cylinder is fixedly installed in the center of the top of the supporting frame, and the end of a piston rod of the air cylinder extends into the supporting frame to be connected with a leather punching mechanism capable of automatically adjusting the punching distance. The leather punching mechanism comprises a mounting plate and a connecting seat, the mounting plate is fixedly connected with the end of a piston rod of the air cylinder, adjusting grooves are formed in the bottom end of the mounting plate at equal intervals, and the multiple adjusting grooves integrally form an isosceles trapezoid structure. According to the leather punching machine, the distance between hole sites is adjusted by adjusting the upper portion and the lower portion, the replaceable single punching die is arranged below the device, punching at any distance in a horizontal row is achieved, meanwhile, the operation table is controlled by the driving motor to move, the longitudinal hole sites are adjusted at will, and finally punching on leather products is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of leather punching equipment, and particularly to a leather punching machine with automatic hole pitch adjustment. Background Technique

[0002] In the field of leather product processing, leather punching is one of the common processing procedures, which is used to process various hole positions on the leather to meet subsequent sewing, decoration or functional requirements. Existing leather punching machines make the entire punching die or cutting die and punch holes in a row at one time. The punching positions, spacings, etc. are not adjustable, and the fixed punching heads cannot adapt to diverse hole pitch requirements, making it difficult to meet the processing requirements of personalized or complex patterns. Moreover, this method requires making a punching die or cutting die for each product produced, resulting in a great waste of molds. Therefore, we propose a leather punching machine with automatic hole pitch adjustment. Summary of the Invention

[0003] The purpose of the present invention is to provide a leather punching machine with automatic hole pitch adjustment to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A leather punching machine with automatic hole pitch adjustment, a support table, a support frame is fixedly connected to the top of the support table, and a controller is installed at one end of the top of the support frame. A cylinder is fixedly installed at the center of the top of the support frame, and the end of the piston rod of the cylinder extends into the support frame and is connected to a leather punching mechanism capable of automatically adjusting the punching distance. A mounting seat is fixedly connected to the top of the support table, and a slidable operating table is arranged on the top of the mounting seat. The leather punching mechanism includes a mounting plate and a connecting seat. The mounting plate is fixedly connected to the end of the piston rod of the cylinder. Adjustment grooves are equidistantly opened at the bottom end of the mounting plate, and the overall of the multiple adjustment grooves forms an isosceles trapezoid structure. Punching heads are equidistantly arranged at the bottom end of the mounting plate, and adjustment blocks are arranged at the top ends of the punching heads, and the adjustment blocks are slidably connected to the adjustment grooves in a matching manner. A liftable connecting seat is arranged on the surface of the mounting plate, and the punching heads are connected to the bottom of the connecting seat.

[0005] Preferably, a lifting groove is opened on the surface of the mounting plate, an electric telescopic rod is fixedly installed at the top of the mounting plate, the end of the piston rod of the electric telescopic rod extends into the lifting groove, a lifting block is integrally arranged on the outside of the connecting seat, and the lifting block is slidably connected to the lifting groove in a matching manner, and the end of the piston rod of the electric telescopic rod is fixedly connected to the lifting block.

[0006] Preferably, a fixing plate is fixedly installed on the outside of the support frame, second slide rails are symmetrically arranged on the surface of the fixing plate, a sliding seat is fixedly connected to one side of the mounting plate where the mounting plate is located outside the fixing plate, and the sliding seat is slidably connected to the outside of the two second slide rails, and the end of the piston rod of the cylinder is fixedly connected to the mounting plate.

[0007] Preferably, sliding grooves are symmetrically formed on the surface of the mounting plate, and the sliding grooves are arranged parallel to the lifting grooves. On the surface of the connecting seat and outside the lifting blocks, sliding blocks are integrally arranged symmetrically, and the two sliding blocks are respectively slidably connected in the two sliding grooves. On the corresponding two side walls of the mounting plate, third slide rails are arranged. On the corresponding two ends of the connecting seat, lifting sliding seats are arranged, and the two lifting sliding seats are respectively slidably arranged outside the two third slide rails.

[0008] Preferably, a limiting groove is formed at the bottom of the connecting seat. On the top of the punching head, a limiting block is integrally arranged, and the limiting block is slidably connected in the limiting groove in a matching manner.

[0009] Preferably, a supporting plate is fixedly connected to the bottom of the connecting seat, and sliding grooves are equidistantly formed on the surface of the supporting plate. On the side wall of the punching head, moving blocks are arranged equidistantly, and the moving blocks are slidably connected in the corresponding sliding grooves in a matching manner.

[0010] Preferably, at the two ends inside the mounting seat, a driving pulley and a driven pulley are respectively rotatably connected, and the driving pulley and the driven pulley are connected by a belt in a transmission manner. A driving motor is fixedly installed inside the supporting platform, and the end of the output shaft of the driving motor is fixedly connected to the central axis of the driving pulley. An opening is formed at the top of the mounting seat. Inside the mounting seat, first slide rails are symmetrically arranged. At the bottom of the operating platform, a supporting seat is fixedly connected, and the supporting seat is slidably connected outside the two first slide rails.

[0011] Preferably, limiting stop blocks are fixedly connected to both ends of the first slide rails inside the mounting seat.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: On the punching die with adjustable spacing of the present invention, an adjustable device is installed according to the inclined adjustment groove. The hole position spacing is adjusted by adjusting up and down, and a replaceable single punching die is installed at the lower part of the device to realize punching with any spacing in the horizontal row. At the same time, by controlling the movement of the operating platform by the driving motor, the random adjustment of the longitudinal hole position is realized. The spacing between the punching heads can be adjusted steplessly. Finally, punching is realized on leather products, which is applicable to the processing of leather materials with different hole distance requirements, saves the time for making punching dies or knife dies, can greatly improve the punching efficiency, and equivalently speeds up the production cycle. The operation is convenient and the training is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the overall structure of the present invention;

[0014] Figure 2 is a schematic structural diagram of the overall structure of the present invention;

[0015] Figure 3 is a schematic structural diagram of the internal structure of the mounting seat of the present invention;

[0016] Figure 4Schematic structural diagram of the leather punching mechanism of the present invention;

[0017] Figure 5 Schematic internal structure diagram of the mounting base of the present invention;

[0018] Figure 6 Schematic connection structure diagram of the mounting plate of the present invention;

[0019] Figure 7 Schematic connection structure diagram of the punching head of the present invention;

[0020] Figure 8 Schematic connection structure diagram of the punching head of the present invention.

[0021] In the figure: 1, support table; 2, support frame; 3, controller; 4, cylinder; 5, leather punching mechanism; 6, mounting base; 7, operating table; 8, driven pulley; 9, driving motor; 10, driving pulley; 11, first slide rail; 12, support base; 13, fixing plate; 14, second slide rail; 15, mounting plate; 16, connecting seat; 17, chute; 18, adjusting groove; 19, punching head; 20, limiting block; 21, electric telescopic rod; 22, lifting groove; 23, third slide rail; 24, sliding seat; 25, support plate; 26, sliding groove; 27, limiting stop block; 28, limiting groove. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , Figure 2 and Figure 7 , the present invention provides a technical solution: an automatic hole-spacing-adjustable leather punching machine, a support table 1, a support frame 2 is fixedly connected to the top of the support table 1, and a controller 3 is installed at one end of the top of the support frame 2. A cylinder 4 is fixedly installed at the center of the top of the support frame 2, and the end of the piston rod of the cylinder 4 extends into the support frame 2 and is connected to a leather punching mechanism 5 capable of automatically adjusting the punching distance;

[0024] A mounting seat 6 is fixedly connected to the top of the support platform 1, and a slidably adjustable operating platform 7 is arranged on the top of the mounting seat 6. The leather punching mechanism 5 includes a mounting plate 15 and a connecting seat 16. The mounting plate 15 is fixedly connected to the end of the piston rod of the air cylinder 4. A plurality of adjusting grooves 18 are equidistantly arranged at the bottom end of the mounting plate 15, and the overall of the plurality of adjusting grooves 18 forms an isosceles trapezoid structure. A plurality of punching heads 19 are equidistantly arranged at the bottom end of the mounting plate 15, and an adjusting block is arranged at the top end of the punching head 19, and the adjusting block is slidably connected in the adjusting groove 18 in a matching manner. A liftable and adjustable connecting seat 16 is arranged on the surface of the mounting plate 15, and the punching head 19 is connected to the bottom of the connecting seat 16.

[0025] It should be noted that when the present invention is in use, the leather is placed on the operating platform 7, and the air cylinder 4 is controlled to work through the controller 3 to push the mounting plate 15 and the punching head 19 to move downward, so that the punching action can be completed. After the stamping is completed, the air cylinder 4 resets, and the leather punching mechanism 5 rises to prepare for the next processing. The adjusting grooves 18 arranged in an isosceles trapezoid structure as a whole are provided at the bottom of the mounting plate 15, and the adjusting grooves 18 are symmetrically inclined structures. The adjusting blocks at the top ends of each punching head 19 can slide in the adjusting grooves 18. The connecting seat 16 is driven to rise and fall by the electric telescopic rod 21, and the punching head 19 is driven to move along the adjusting groove 18. When the connecting seat 16 rises, the punching head 19 slides outward along the limiting groove 28. At this time, the hole pitch of the punching head 19 increases. When the connecting seat 16 descends, the punching head 19 slides inward along the limiting groove 28. At this time, the hole pitch of the punching head 19 decreases. By the operation of the driving motor 9, the driving pulley 10 can be driven to rotate. Through the transmission connection between the driving pulley 10 and the driven pulley 8, the support seat 12 moves along the first slide rail 11. The operating platform 7 is connected to the support seat 12, so that the movement of the operating platform 7 can be realized, and automatic feeding can be realized, ensuring that the leather moves accurately to the next processing position after each punching. The setting of the limiting block 27 can prevent the over-travel of the operating platform 7 and ensure the safe operation. After one punching is completed, the driving motor 9 drives the operating platform 7 to move to the next punching position, and the steps are repeated until the processing of the whole piece of leather is completed.

[0026] Please refer to Figure 7 , a lifting groove 22 is opened on the surface of the mounting plate 15. An electric telescopic rod 21 is fixedly installed on the top of the mounting plate 15. The end of the piston rod of the electric telescopic rod 21 extends into the lifting groove 22. A lifting block is integrally arranged on the outer side of the connecting seat 16, and the lifting block is slidably connected in the lifting groove 22 in a matching manner. The end of the piston rod of the electric telescopic rod 21 is fixedly connected to the lifting block.

[0027] Please refer to Figure 6 and Figure 7, a fixing plate 13 is fixedly installed on the outer side of the support frame 2. Second slide rails 14 are symmetrically arranged on the surface of the fixing plate 13. A sliding seat 24 is fixedly connected to one side of the mounting plate 15, and the sliding seat 24 is slidably connected to the outside of the two second slide rails 14. The end of the piston rod of the air cylinder 4 is fixedly connected to the mounting plate 15.

[0028] It should be noted that by the operation of the air cylinder 4, the lifting movement of the mounting plate 15 can be controlled, thereby driving the lifting of the punching head 19 to realize the punching operation on the leather material on the operating table 7. During the lifting process of the mounting plate 15, the sliding seat 24 on the mounting plate 15 slides on the second slide rails 14, which can ensure the stability of the stamping process and no deviation.

[0029] Please refer to Figure 1 and Figure 2 , chute grooves 17 are symmetrically formed on the surface of the mounting plate 15, and the chute grooves 17 are arranged in parallel with the lifting grooves 22. On the surface of the connecting seat 16, sliders are symmetrically and integrally arranged outside the lifting blocks, and the two sliders are respectively slidably connected in the two chute grooves 17. Third slide rails 23 are arranged on the corresponding two side walls of the mounting plate 15. Lifting slide seats are arranged at the corresponding two ends of the connecting seat 16, and the two lifting slide seats are respectively slidably arranged outside the two third slide rails 23.

[0030] It should be noted that the chute grooves 17 are formed on the surface of the mounting plate 15 and are parallel to the lifting grooves 22, which are used to guide the horizontal stability of the connecting seat 16. The sliders are integrally arranged outside the lifting blocks of the connecting seat 16 and are slidably matched with the chute grooves 17 to prevent the connecting seat 16 from having a lateral offset during lifting. The third slide rails 23 are installed on the two side walls of the mounting plate 15 and are matched with the lifting slide seats at the two ends of the connecting seat 16 to provide rigid support in the vertical direction and avoid shaking. When the electric telescopic rod 21 drives the lifting, the connecting seat 16 moves up and down along the lifting groove 22 through the lifting block. The combination of the chute grooves 17 and the sliders restricts the horizontal displacement of the connecting seat 16 to ensure that it only moves in the vertical direction. The third slide rails 23 and the lifting slide seats can further reinforce the two ends of the connecting seat 16 to prevent tilting or jamming caused by the punching reaction force.

[0031] Please refer to Figure 8 , a limiting groove 28 is formed at the bottom of the connecting seat 16. A limiting block 20 is integrally arranged at the top of the punching head 19, and the limiting block 20 is slidably connected in the limiting groove 28 in a matching manner.

[0032] It should be noted that when the connecting seat 16 rises and falls, it drives the punching head 19 to rise and fall, and the punching head 19 moves along the path of the adjustment groove 18, so that the punching head 19 also generates a horizontal movement during the rising and falling process, so that the limiting block 20 at the top of the punching head 19 slides in the limiting groove 28 at the bottom of the connecting seat 16, enabling the punching head 19 to move smoothly.

[0033] Please refer to Figure 4 A support plate 25 is fixedly connected to the bottom of the connecting seat 16, and sliding grooves 26 are equidistantly formed on the surface of the support plate 25. Moving blocks are equidistantly arranged on the side wall of the punching head 19, and the moving blocks are slidably connected to the corresponding sliding grooves 26 in a matching manner.

[0034] It should be noted that during the translation process of the punching head 19, the moving blocks on the side wall of the punching head 19 are slidably arranged in the sliding grooves 26 in a matching manner, so that the punching head 19 can move smoothly and prevent the punching head 19 from shifting.

[0035] Please refer to Figure 3 and Figure 4 At both ends inside the mounting seat 6, a driving pulley 10 and a driven pulley 8 are respectively rotatably connected. The driving pulley 10 and the driven pulley 8 are connected by a belt drive. A driving motor 9 is fixedly installed inside the support table 1, and the end of the output shaft of the driving motor 9 is fixedly connected to the central axis of the driving pulley 10. An opening is provided at the top of the mounting seat 6. Two first sliding rails 11 are symmetrically arranged inside the mounting seat 6. A support seat 12 is fixedly connected to the bottom of the operating table 7, and the support seat 12 is slidably connected to the outside of the two first sliding rails 11.

[0036] It should be noted that the driving pulley 10 and the driven pulley 8 are respectively installed at both ends of the mounting seat 6 through bearings. A high-strength synchronous belt connects the driving pulley 10 and the driven pulley 8 to form a closed-loop drive system. The driving motor 9 is rigidly connected to the central axis of the driving pulley 10 through a coupling. A pair of parallel first sliding rails 11 are fixed inside the mounting seat 6. A linear bearing matching the first sliding rails 11 is provided at the bottom of the support seat 12. The operating table 7 is rigidly connected to the support seat 12 through bolts. The mounting seat 6 adopts a box-shaped welded structure with an opening at the top. The support table 1 is internally provided with a motor mounting base and is equipped with shock-absorbing gaskets. During operation, the driving motor 9 receives a pulse signal from the controller 3. The motor shaft drives the driving pulley 10 to make an accurate angular displacement. The rotational motion is transmitted to the driven pulley 8 through the synchronous toothed belt. The support seat 12 is fixedly connected to a specific position of the belt. The linear motion of the belt drives the support seat 12 to translate along the first sliding rails 11, and the operating table 7 realizes precise positioning in the X-axis direction.

[0037] Please refer to Figure 5 Limit stop blocks 27 are fixedly connected to both ends of the first sliding rails 11 inside the mounting seat 6.

[0038] It should be noted that the limit stop blocks 27 can provide hardware safety limits, prevent the operating table 7 from moving beyond the range, and ensure safe operation.

[0039] Furthermore, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one of such features.

[0040] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "installed", "connected", "fixed", "swivelly connected", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic hole-spacing-adjustable leather punching machine, characterized in that, Support platform (1), a support frame (2) is fixedly connected to the top of the support platform (1), and a controller (3) is installed at one end of the top of the support frame (2). A cylinder (4) is fixedly installed at the center of the top of the support frame (2), and the end of the piston rod of the cylinder (4) extends into the support frame (2) and is connected to a leather punching mechanism (5) capable of automatically adjusting the punching distance. An installation base (6) is fixedly connected to the top of the support platform (1), and a slidable operating table (7) is arranged on the top of the installation base (6). The leather punching mechanism (5) includes a mounting plate (15) and a connecting seat (16). The mounting plate (15) is fixedly connected to the end of the piston rod of the cylinder (4). Adjusting grooves (18) are equidistantly opened at the bottom end of the mounting plate (15), and the overall shape of the plurality of adjusting grooves (18) forms an isosceles trapezoid structure. Punching heads (19) are equidistantly arranged at the bottom end of the mounting plate (15), and adjusting blocks are arranged at the top ends of the punching heads (19), and the adjusting blocks are slidably connected to the adjusting grooves (18) in a matching manner. A connecting seat (16) capable of lifting adjustment is arranged on the surface of the mounting plate (15), and the punching head (19) is connected to the bottom of the connecting seat (16).

2. The leather punching machine with automatically adjustable hole pitch according to claim 1, characterized in that: A lifting groove (22) is opened on the surface of the mounting plate (15). An electric telescopic rod (21) is fixedly installed at the top of the mounting plate (15). The end of the piston rod of the electric telescopic rod (21) extends into the lifting groove (22). A lifting block is integrally arranged on the outer side of the connecting seat (16), and the lifting block is slidably connected to the lifting groove (22) in a matching manner. The end of the piston rod of the electric telescopic rod (21) is fixedly connected to the lifting block.

3. An automatic hole-spacing-adjustable leather punching machine according to claim 1, characterized in that: A fixed plate (13) is fixedly installed on the outer side of the support frame (2). Second slide rails (14) are symmetrically arranged on the surface of the fixed plate (13). A sliding seat (24) is fixedly connected to one side of the mounting plate (15) located at the fixed plate (13), and the sliding seat (24) is slidably connected to the outside of the two second slide rails (14). The end of the piston rod of the cylinder (4) is fixedly connected to the mounting plate (15).

4. An automatic hole-spacing-adjusting leather punching machine according to claim 1, characterized in that: Chute grooves (17) are symmetrically opened on the surface of the mounting plate (15), and the chute grooves (17) are arranged in parallel with the lifting groove (22). Sliding blocks are integrally arranged on the surface of the connecting seat (16) symmetrically outside the lifting block, and the two sliding blocks are respectively slidably connected to the two chute grooves (17) in a matching manner. Third slide rails (23) are arranged on the corresponding two side walls of the mounting plate (15). Lifting sliding seats are arranged at the corresponding two ends of the connecting seat (16), and the two lifting sliding seats are respectively slidably arranged on the outside of the two third slide rails (23).

5. An automatic hole-spacing-adjusting leather punching machine according to claim 1, characterized in that: A limiting groove (28) is opened at the bottom of the connecting seat (16). A limiting block (20) is integrally arranged at the top of the punching head (19), and the limiting block (20) is slidably connected to the limiting groove (28) in a matching manner.

6. The leather punching machine with automatically adjustable hole pitch according to claim 1, characterized in that: A support plate (25) is fixedly connected to the bottom of the connecting seat (16). Sliding grooves (26) are equidistantly opened on the surface of the support plate (25). Moving blocks are equidistantly arranged on the side wall of the punching head (19), and the moving blocks are slidably connected to the corresponding sliding grooves (26) in a matching manner.

7. An automatic hole-spacing-adjusting leather punching machine according to claim 1, characterized in that: At both ends inside the mounting base (6), a driving pulley (10) and a driven pulley (8) are respectively rotatably connected, and the driving pulley (10) and the driven pulley (8) are connected by belt drive. A driving motor (9) is fixedly installed inside the support table (1), and the end of the output shaft of the driving motor (9) is fixedly connected to the central axis of the driving pulley (10). An opening is provided at the top of the mounting base (6). First slide rails (11) are symmetrically arranged inside the mounting base (6). A support base (12) is fixedly connected to the bottom of the operation table (7), and the support base (12) is slidably connected to the outer sides of the two first slide rails (11).

8. An automatic hole-spacing-adjustable leather punching machine according to claim 7, characterized in that: Limit stop blocks (27) are fixedly connected to both ends of the first slide rails (11) inside the mounting base (6).

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