A punching device based on a die

Abstract

The present application discloses a punching device based on a mold, the punching device includes a punching assembly, the punching assembly includes a mold assembly, a first power transmission assembly and a driving assembly, the mold assembly includes a first mold base and a second mold base that move relative to each other along a preset direction; the first power transmission assembly is arranged on a side of the second mold base away from the first mold base; the driving assembly is used to drive the first power transmission assembly to reciprocate along a preset direction, so that the first power transmission assembly pushes the second mold base to move toward the first mold base in an abutting manner during the process of moving toward the second mold base. The punching device based on the mold of the present application improves the processing accuracy of the punching assembly and reduces wear and unevenness.

Description

Technical Field

[0001] The present application relates to the field of punching technology, and in particular to a punching device based on a die. Background Art

[0002] The existing punching device punches the material strip, and the punching device includes a mold assembly. The mold assembly includes an upper mold base and a lower mold base. Usually, a driving member is directly connected to the upper mold base by a rigid connection, and the material strip is punched by driving the upper mold base. However, if the parallelism of the upper mold base is low or other obstacles exist, resulting in uneven punching surfaces of the mold assembly, the rigid connection method will cause wear of the mold assembly, or the precision of the punched finished product will be low. Summary of the invention

[0003] The present application provides a die-based punching and shearing device to solve the problems of uneven punching surface of the die assembly, damage to the die assembly, and low precision of the finished product caused by the influence of connection between the upper die seat and the driving member in the existing punching and shearing device.

[0004] In order to solve the above technical problems, the present application proposes a mold-based punching device, including a punching assembly, which includes: a mold assembly, including a first mold base and a second mold base that move relative to each other along a preset direction; a first power transmission assembly, which is arranged on the side of the second mold base away from the first mold base; a driving assembly, which is used to drive the first power transmission assembly to reciprocate along a preset direction, so that the first power transmission assembly pushes the second mold base toward the first mold base in an abutting manner during the process of moving toward the second mold base.

[0005] Among them, the driving component includes a motor and an eccentric shaft, the eccentric shaft is connected to the output shaft of the motor, the first power transmission component includes a connecting rod and a first bracket, the first bracket is guided and limited along a preset direction, the connecting rod is movably connected between the eccentric shaft and the first bracket, and is used to convert the eccentric rotation of the eccentric shaft into reciprocating motion of the first bracket along a preset direction.

[0006] Among them, the first power transmission component further includes an adjustment mechanism and a power transmission block, the adjustment mechanism is connected between the first bracket and the power transmission block, the power transmission block is used to abut the second mold base, and the adjustment mechanism is used to adjust the distance between the power transmission block and the second mold base.

[0007] Among them, the adjustment mechanism includes: a second bracket, which is mounted on the first bracket; an adjustment rod, which is passed through the second bracket and one end of which is connected to the power transmission block; a locking member, which is adjustably connected to the other end of the adjustment rod, so as to adjust the distance between the power transmission block and the second mold base by adjusting the locking position of the adjustment rod relative to the second bracket.

[0008] Among them, a punch is arranged on the side of the second die base facing the first die base; the mold assembly further includes a stripper plate and a fixed plate, the stripper plate is arranged close to the second die base, the stripper plate is provided with an avoidance hole for the punch to pass through, the fixed plate is arranged on the side of the stripper plate away from the second die base, and is provided with a die, and the material strip is located between the stripper plate and the fixed plate; the first die base is elastically connected to the stripper plate to provide an elastic supporting force to the stripper plate toward the second die base; wherein when the second die base moves toward the first die base, the second die base presses the stripper plate and the fixed plate onto the first die base so that the punch and the die cooperate with each other to punch and cut the material strip, and when the second die base moves away from the first die base, the punch moves out of the avoidance hole, and then the waste material adhering to the punch is removed through the stripper plate.

[0009] Among them, the mold assembly includes a top cover, the first mold base is provided with a through groove corresponding to the die, and the top cover is arranged on the through groove to cooperate with the first mold base and the fixed plate to form a discharge space; the punching device further includes a discharge assembly, and the discharge assembly includes: a discharge pipe connected to the discharge space; a negative pressure device, connected to the discharge pipe, so as to extract the waste in the discharge space through the discharge pipe.

[0010] Among them, a positioning pin extending toward the first mold base is provided on the second mold base, and the end of the positioning pin facing the first mold base is a cone. A positioning hole is provided on the material strip punched by the punching assembly. When the second mold base moves toward the first mold base, the positioning pin is inserted into the positioning hole to adjust the position of the material strip through the cone.

[0011] The punching device further includes a detection component, which includes a signal receiving end and a signal sending end. The signal receiving end and the signal sending end are arranged in the mold component and are respectively located on both sides of the material strip and are respectively opposite to the positioning holes.

[0012] Among them, the punching and cutting device further includes: a feeding assembly for conveying the material strip to the mold assembly, the feeding assembly includes a moving roller, a fixed roller and a second power transmission assembly, the second power transmission assembly is connected between the driving assembly and the moving roller, so as to drive the moving roller away from the fixed roller when the second mold base approaches the first mold base, thereby suspending the conveying of the material strip, and drive the moving roller to press the material strip against the fixed roller when the second mold base moves away from the first mold base.

[0013] The reciprocating motion of the second die holder relative to the first die holder and the reciprocating motion of the movable roller relative to the fixed roller are parallel to each other.

[0014] The beneficial effects of the present application are as follows: Different from the prior art, the present application provides a die-based punching device, which includes a punching assembly, which includes a die assembly, a die assembly, a first power transmission assembly and a drive assembly, and the die assembly includes a first die base and a second die base that move relative to each other along a preset direction. The first power transmission assembly is disposed on the side of the second die base that is away from the first die base. The drive assembly is used to drive the first power transmission assembly to reciprocate along a preset direction, so that the first power transmission assembly pushes the second die base toward the first die base in an abutting manner during the movement toward the second die base, that is, the first power transmission assembly is not rigidly connected to the second die base, which improves the processing accuracy of the punching assembly and reduces the unevenness and wear of the die assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of the material strip of this application;

[0017] Figure 2 yes Figure 1 Schematic diagram of the finished product formed by the material strip shown;

[0018] Figure 3 It is a schematic diagram of the structure of the punching assembly in the die-based punching device of the present application;

[0019] Figure 4 yes Figure 3 A first partial schematic diagram of the punch assembly shown;

[0020] Figure 5 yes Figure 3 A second partial schematic diagram of the punch assembly shown;

[0021] Figure 6 yes Figure 3 A schematic diagram of the structure shown;

[0022] Figure 7 yes Figure 3 A third partial schematic diagram of the punch assembly shown;

[0023] Figure 8 yes Figure 3 A fourth partial schematic diagram of the punch assembly shown;

[0024] Fig. 9 It is a structural schematic diagram of a first embodiment of a feeding assembly in a die-cutting device based on a mold of the present application;

[0025] Fig.10 yes Fig. 9 The structural schematic diagram of the feeding assembly shown;

[0026] Fig.11 yes Fig.10 The schematic diagram of the structure of BB shown;

[0027] Fig.12 yes Fig.11 The structural diagram of C shown;

[0028] Fig.13 It is a structural schematic diagram of a second embodiment of a feeding assembly in a die-cutting device based on a mold of the present application;

[0029] Fig.14 It is a top view of the cooperation between the positioning pin and the positioning hole in the die-cutting device based on the mold of the present application;

[0030] Fig.15 yes Fig.14 Schematic diagram of the structure of the positioning needle shown.

[0031] Reference numerals: 1, punching assembly; 11, die assembly; 111, first die base; 1111, through groove; 112, second die base; 1121, punch; 113, fixing plate; 1131, die; 114, top cover; 115, discharge pipe; 116, cover plate; 117, bottom plate; 118, first magnetic member; 12, first power transmission assembly; 121, connecting rod; 122, first bracket; 123, adjusting mechanism; 1231, second bracket; 1232, adjusting rod; 1233, locking member; 124, power transmission block; 13, driving assembly; 131, motor; 132, eccentric shaft;

[0032] 2. Feeding assembly; 21. Moving roller; 22. Fixed roller; 23. Second power transmission assembly; 231. Fixed bracket; 2311. Slide rail; 232. Mounting plate; 2321. Sliding block; 233. Connecting rod assembly; 2331. First connecting rod; 2332. Second connecting rod; 2333. Third connecting rod; 23331. First rod body; 23332. Second rod body; 23333. Sleeve; 23334. Sliding cavity; 23335. Guide member; 23336. Elastic member; 2334. First connecting member; 2335. Second connecting member; 23351. First connecting part; 23352. Second connecting part;

[0033] 3. Feeding assembly; 31. Moving roller; 32. Fixed roller; 33. Transition roller; 34. Second power transmission assembly; 341. Fixed bracket; 342. Moving roller driving member;

[0034] 41. material strip; 411. positioning hole; 42. finished product;

[0035] 5. Positioning needle. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present application, a die-based punching device provided by the invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of the material strip of this application; Figure 2 yes Figure 1 Schematic diagram of the finished product formed by the material strip shown.

[0038] In this embodiment, the material strip 41 is used to punch out the finished product 42 through the punching assembly 1. For example, Figure 1 and 2 As shown, the finished product 42 is generally formed by punching corresponding holes on the material strip 41, such as punching small holes, semicircular holes, and then punching out the entire hole as shown in FIG. Figure 2 The round finished product 42 shown in the figure, the remaining strip 41 is as follows Figure 1 As shown in the formation Figure 2 The circular hole of the finished product's outer contour is shown.

[0039] See also Figure 3 , Figure 4 and Figure 5 , Figure 3 It is a schematic diagram of the structure of the punching assembly in the die-based punching device of the present application; Figure 4 yes Figure 3 A first partial schematic diagram of the punch assembly shown; Figure 5 yes Figure 3 A second partial schematic diagram of the punch assembly is shown.

[0040] Combination Figure 1In this embodiment, the die-cutting device based on the mold includes a punching assembly 1, which includes a mold assembly 11, a first power transmission assembly 12 and a driving assembly 13. The mold assembly 11 includes a first mold base 111 and a second mold base 112, wherein the first mold base 111 and the second mold base 112 move relative to each other along a preset direction. The first power transmission assembly 12 is arranged on the side of the second mold base 112 away from the first mold base 111. The driving assembly 13 is used to drive the first power transmission assembly 12 to reciprocate along a preset direction, so that the first power transmission assembly 12 pushes the second mold base 112 to move toward the first mold base 111 in an abutting manner during the movement toward the second mold base 112, that is, the first power transmission assembly 12 is not rigidly connected to the second mold base 112, thereby avoiding the problem of uneven punching surface of the mold assembly 11 and wear of the mold assembly 11 due to the low parallelism of the second mold base 112 or the presence of other obstacles, thereby improving the processing accuracy of the punching assembly 1. The preset direction is the running direction of the second mold base 112 relative to the first mold base 111 .

[0041] Specifically, the driving assembly 13 includes a motor 131 and an eccentric shaft 132, and the eccentric shaft 132 is connected to the output shaft of the motor 131. The motor 131 is used to drive the eccentric shaft 132 to rotate. The above-mentioned first power transmission assembly 12 includes a connecting rod 121 and a first bracket 122, and the first bracket 122 is guided and limited along a preset direction. The connecting rod 121 is movably connected between the eccentric shaft 132 and the first bracket 122, that is, the motor 131 drives the eccentric shaft 132 to move, so that the eccentric shaft 132 drives the connecting rod 121 to reciprocate, and the connecting rod 121 drives the first bracket 122 to move, so that the eccentric rotation of the eccentric shaft 132 is converted into the reciprocating movement of the first bracket 122 along the preset direction.

[0042] Thus, the eccentric shaft 132 transmits power to the second die base 112 through the connecting rod 121 and the first bracket 122, so that the second die base 112 moves toward the first die base 111 along the preset direction. That is, the first bracket 122 in the first power transmission component 12 is non-rigidly connected to the second die base 112, thereby improving the processing accuracy of the punching component 1. The above-mentioned preset direction is the running direction of the second die base 112 relative to the first die base 111. In the actual process, the eccentric shaft 132 rotates and deviates, so that the force formed by the eccentric shaft 132 makes the mold assembly 11 unable to move along the preset direction, but deviates. In order to limit the mold assembly 11 to move along the preset direction, it can be considered to use the side of the first power transmission component 12 for sliding connection with an external device, so that the force formed by the eccentric shaft 132 acts on the first power transmission component 12, so that the mold assembly 11 moves along the preset direction.

[0043] Since the distance between the first bracket 122 and the second die base 112 remains relatively unchanged when the first bracket 122 moves in the preset direction toward the second die base 112, in order to match the punching device to adapt to different strokes in the die assembly 11, the first power transmission assembly 12 of this embodiment further includes an adjustment mechanism 123 and a power transmission block 124, and the adjustment mechanism 123 is used to facilitate the adjustment of the punching distance of the die assembly 11 with different strokes. Specifically, the power transmission block 124 is used to abut against the second die base 112, that is, the power transmission block 124 is located at the bottom of the punching assembly 1. During the continuous upward movement of the power transmission block 124, it abuts against the punching assembly 1 and then continues to give it an upward movement power, thereby giving the punching assembly 1 a punching power. The adjustment mechanism 123 is connected between the first bracket 122 and the power transmission block 124, and the adjustment mechanism 123 is used to adjust the distance between the power transmission block 124 and the second die base 112, so as to facilitate the adjustment of the distance between the power transmission block 124 and the second die base 112.

[0044] Furthermore, the adjustment mechanism 123 includes a second bracket 1231, an adjustment rod 1232 and a locking piece 1233. The second bracket 1231 is mounted on the first bracket 122. The first bracket 122 is used to install the second bracket 1231. The adjustment rod 1232 is passed through the second bracket 1231. One end of the adjustment rod 1232 is connected to the power transmission block 124, wherein the locking piece 1233 is adjustably connected to the other end of the adjustment rod 1232, so as to adjust the distance between the power transmission block 124 and the second mold base 112 by adjusting the locking position of the adjustment rod 1232 relative to the second bracket 1231, so as to adapt to the punching distances of different strokes of the mold assembly 11 and facilitate adjustment.

[0045] See also Figure 6 and Figure 7 , Figure 6 yes Figure 3 A schematic diagram of the structure shown; Figure 7 yes Figure 3 A third partial schematic diagram of the punch assembly is shown.

[0046] In one embodiment, in combination Figure 3 , a convex die 1121 is provided on one side of the second die base 112 facing the first die base 111. The die assembly 11 further includes a stripper plate (not shown in the figure) disposed near the second die base 112, and a avoidance hole is disposed on the stripper plate, and the avoidance hole is used for the convex die 1121 to pass through. The die assembly 11 includes a fixed plate 113, which is disposed on the side of the stripper plate away from the second die base 112, and the fixed plate 113 is provided with a concave die 1131, and the material strip 41 is located between the stripper plate and the fixed plate 113. Since the finished product 42 formed during the punching process of the die assembly 11 is easy to adhere to the convex die 1121, the first die base 111 is elastically connected to the stripper plate to provide an elastic supporting force to the stripper plate toward the second die base 112.

[0047] When the second die base 112 moves toward the first die base 111, the second die base 112 presses the stripper plate and the fixed plate 113 onto the first die base 111, so that the punch 1121 and the die 1131 cooperate with each other to punch the material strip 41; when the second die base 112 moves away from the first die base 111, the punch 1121 moves out of the avoidance hole, and then the waste material adhering to the punch 1121 is removed by the stripper plate. In order to guide the movement of the stripper plate, a guide column is further provided between the fixed plate 113 and the second die base 112, and the guide column is used to guide the movement of the stripper plate.

[0048] See also Figure 8 , Figure 8 yes Figure 3 A fourth partial schematic diagram of the punch assembly is shown.

[0049] Combination Figure 3 and Figure 6 In order to prevent the waste material formed during the punching process of the mold assembly 11 from adhering to the punching surface of the punch 1121, a vent hole is provided on the punch 1121, which is connected to an external blowing device for blowing the waste material to avoid the waste material adhering to the punching surface of the punch 1121.

[0050] Although the blowing device provided in the mold assembly 11 can blow away the waste, it cannot collect the waste. In order to facilitate the collection of waste in the punching assembly 1, the first mold base 111 in this embodiment is provided with a through groove 1111, and the through groove 1111 is provided corresponding to the concave mold 1131 to guide the waste formed during the punching process into the through groove 1111. At the same time, the mold assembly 11 includes a top cover 114, which is provided on the through groove 1111. The through groove 1111 cooperates with the first mold base 111 and the fixed plate 113 to form a discharge space, and the above-mentioned discharge space is used to collect waste to prevent the waste from affecting the punching of the punching assembly 1. The above-mentioned through groove 1111 can be square, etc.

[0051] Further, see Figure 3 and Figure 8 In order to timely remove the waste in the waste space, the mold assembly 11 in this embodiment further includes a discharge assembly, which includes a discharge pipe 115 and a negative pressure device. The discharge pipe 115 is connected to the discharge space, wherein the negative pressure device is connected to the discharge pipe 115, so that the punching waste in the discharge space can be extracted through the negative pressure device. In order to facilitate the introduction of the material strip 41 into the punching assembly 1, the punching assembly 1 in this embodiment also includes a guide member 14, which includes a bottom plate 117 and a cover plate 116. The bottom plate 117 is U-shaped, and the cover plate 116 is placed on the bottom plate 117 to form a guide space, which is used to introduce the material strip 41.

[0052] In order to facilitate a more stable installation of the cover plate 116 on the base plate 117, a first magnetic component 118 is provided on both sides of the base plate 117, and a second magnetic component (not shown in the figure) is provided on the cover plate 116, wherein the first magnetic component 118 and the second magnetic component have opposite magnetic properties and attract each other, that is, the magnetic force between the first magnetic component 118 and the second magnetic component is used to achieve the connection between the cover plate 116 and the base plate 117, so as to facilitate installation.

[0053] See also Fig. 9 , Fig. 9 It is a schematic structural diagram of the first embodiment of the feeding assembly in the die-based punching device of the present application.

[0054] Combination Figure 1 and Figure 3 In order to improve the precision of the punching device in punching the finished product, the punching device in this embodiment includes a feeding assembly 2, wherein the feeding assembly 2 is used to convey the material strip 41 to the mold assembly 11. The feeding assembly 2 includes a moving roller 21, a fixed roller 22 and a second power transmission assembly 23, wherein the moving roller 21 and the fixed roller 22 are arranged opposite to each other, and the second power transmission assembly 23 is connected between the driving assembly 13 and the moving roller 21. When the driving assembly 13 drives the first power transmission assembly 12 to move, the first power transmission assembly 12 drives the second mold base 112 to approach the first mold base 111 to punch the material strip 41, and at the same time, the driving assembly 13 drives the second power transmission assembly 23 to move, and the second power transmission assembly 23 drives the moving roller 21 away from the fixed roller 22 to make the material strip 41 in a loose state, thereby suspending the conveying of the material strip 41.

[0055] In addition, when the driving component 13 drives the first power transmission component 12 to return to its original position, the first power transmission component 12 drives the second mold base 112 away from the first mold base 111 to release the punching of the material strip 41. At the same time, the driving component 13 drives the second power transmission component 23 to move. The second power transmission component 23 drives the moving roller 21 to approach the fixed roller 22 and press the material strip 41 onto the fixed roller 22. When the fixed roller 31 rotates, the conveying of the material strip 41 is realized.

[0056] It can be seen that the driving component 13 controls the actions of the first power transmission component 12 and the second power transmission component 23 at the same time, so that the feeding component 2 can feed materials together with the punching component 1. When the punching component 1 is punching, the feeding component 2 releases the material belt 41; when the punching component 1 is not punching, the feeding component 2 conveys the material belt 41, thereby improving the punching accuracy of the punching device and increasing the punching speed.

[0057] Specifically, since one end of the eccentric shaft 132 is connected to the first power transmission assembly 12, the first power transmission assembly 12 is used to convert the eccentric rotation of the eccentric shaft 132 into the reciprocating motion of the second mold base 112 relative to the first mold base 111. At the same time, since one end of the eccentric shaft 132 is connected to the second power transmission assembly 23, the second power transmission assembly 23 is used to convert the eccentric rotation of the eccentric shaft 132 into the reciprocating motion of the moving roller 21 relative to the fixed roller 22.

[0058] Furthermore, the eccentric shaft 132 reciprocates, so that the first power transmission component 12 drives the second mold base 112 to reciprocate relative to the first mold base 111, and the second power transmission component 23 drives the moving roller 21 to reciprocate relative to the fixed roller 22. The reciprocating direction of the second mold base 112 relative to the first mold base 111 is the same as the reciprocating direction of the moving roller 21 relative to the fixed roller 22. Fig. 9 As shown, the reciprocating direction of the second die holder 112 relative to the first die holder 111 is the same as the reciprocating direction of the moving roller 21 relative to the fixed roller 22, and both are in the up-down direction. Under the action of the motor 131, when the eccentric shaft 132 drives the first power transmission component 12 to move upward, the second power transmission component 23 drives the moving roller 21 to move upward; when the eccentric shaft 132 drives the first power transmission component 12 to move downward, it also drives the second power transmission component 23 to move downward.

[0059] In order to install the fixed roller 22, the second power transmission assembly 23 in this embodiment includes a fixed bracket 231, and the fixed roller 22 is rotatably supported on the fixed bracket 231. In order to install the moving roller 21, the second power transmission assembly 23 includes a mounting plate 232, and the moving roller 21 is rotatably supported on the mounting plate 232. Among them, the mounting plate 232 slides on the fixed bracket 231, so that the moving roller 21 slides on the fixed bracket 231 through the mounting plate 232, so that the moving roller 21 is close to or away from the fixed roller 22, and at the same time, the linkage between the punching assembly 1 and the feeding assembly 2 is improved.

[0060] In order to convert the eccentricity of the eccentric shaft 132 into reciprocating motion of the mobile roller 21 relative to the fixed roller 22 through the second power transmission assembly 23, the second power transmission assembly 23 also includes a connecting rod assembly 233, wherein one end of the connecting rod assembly 233 is connected to the eccentric shaft 132, and the other end of the connecting rod assembly 233 is connected to the mounting plate 232, so that under the drive of the eccentric shaft 132, the connecting rod assembly 233 can drive the mounting plate 232 to reciprocate relative to the fixed bracket 231, thereby realizing the moving roller 21 approaching or moving away from the fixed roller 22.

[0061] The fixed bracket 231 is provided with a fixed roller driving member (not shown in the figure), which is connected to the fixed roller 22 to drive the fixed roller 22 to rotate, thereby realizing the conveying of the material belt 41. The fixed roller driving member can be a fixed roller motor, etc. One of the mounting plate 232 and the fixed bracket 231 is provided with a slider 2321, and the other of the mounting plate 232 and the fixed bracket 231 is provided with a slide rail 2311. Since the extension direction of the slide rail 2311 is the same as the back and forth movement direction of the moving roller 21, the slide rail 2311 and the slider 2321 cooperate with each other to improve the punching accuracy of the punching device.

[0062] See also Fig.10 , Fig.11 and Fig.12 , Fig.10 yes Fig. 9 The structural schematic diagram of the feeding assembly shown; Fig.11 yes Fig.10 The schematic diagram of the structure of BB shown; Fig.12 yes Fig.11 Schematic diagram of the structure of C shown.

[0063] Specifically, combined Fig. 9 The connecting rod assembly 233 includes a plurality of connecting rods and a plurality of connecting pieces for connecting adjacent connecting rods, wherein the connecting rods may be two, three or more, wherein the connecting piece may be one, two, three or more. The number of the connecting rods and connecting pieces is not limited, as long as the eccentric shaft 132 can be converted into a reciprocating motion of the mounting plate 232 relative to the fixed bracket 231 through the plurality of connecting rods and the plurality of connecting pieces, so as to realize the moving roller 21 approaching or moving away from the fixed roller 22.

[0064] In order to clearly describe the relative positional relationship between the multiple connecting rods and the multiple connecting members, the connecting rod assembly 233 includes three connecting rods and two connecting members for detailed description. The three connecting rods are defined as the first connecting rod 2331, the second connecting rod 2332 and the third connecting rod 2333, respectively, and the two connecting members are defined as the first connecting member 2334 and the second connecting member 2335, which are specifically described as follows:

[0065] For example, one end of the first connecting rod 2331 is universally hinged on the eccentric shaft 132, and one end of the third connecting rod 2333 is universally hinged on the mounting plate 232, wherein the other end of the first connecting rod 2331 and one end of the second connecting rod 2332 are rotatably connected via a first connecting member 2334, and the other end of the second connecting rod 2332 and the other end of the third connecting rod 2333 are rotatably connected via a second connecting member 2335, and the above-mentioned first connecting rod 2331 and the third connecting rod 2333 are respectively arranged at an angle relative to the second connecting rod 2332.

[0066] When the eccentric shaft 132 rotates, it drives the first connecting rod 2331, the first connecting member 2334, the second connecting rod 2332, the second connecting member 2335 and the third connecting rod 2333 to move. The third connecting rod 2333 drives the mounting plate 232 to reciprocate relative to the fixed bracket 231, thereby realizing the movement of the movable roller 21 towards or away from the fixed roller 22.

[0067] Furthermore, the second connecting member 2335 includes a first connecting portion 23351 and a second connecting portion 23352, wherein the first connecting portion 23351 and the second connecting portion 23352 are connected at an angle. The connection between the first connecting portion 23351 and the second connecting portion 23352 is rotatably connected to the external bracket, so that the first connecting member 2334 and the second connecting member 2335 are rotated relative to the external bracket, and the external bracket provides a rotation support for the connecting member. The first connecting portion 23351 and the second connecting portion 23352 are rotatably connected to the first connecting rod 2331 and the second connecting rod 2332 or the second connecting rod 2332 and the third connecting rod 2333, respectively.

[0068] The angle between the first connection portion 23351 and the second connection portion 23352 can be greater than 0° and less than or equal to 180°, and can be 10°, 50°, 90°, 100°, 150°, 178°, etc., which is not limited here. In this embodiment, the first connection portion 23351 and the second connection portion 23352 are arranged perpendicular to each other.

[0069] The three connecting rods and two connecting pieces are just examples. Of course, the connecting rod assembly 233 may also include other numbers of connecting rods and connecting pieces, which are not limited here and will not be described in detail.

[0070] As can be seen from the above, in the first embodiment of the feeding assembly 2, the rotational power of the eccentric shaft 132 driven by the motor 131 is converted into the clamping force of the moving roller 21 through the connecting rod assembly 233, so that the clamping force of the feeding assembly 2 is adjustable, thereby the material belt 41 is conveyed at a fixed distance, so that the clamping time completely matches the punching time of the mold assembly 11, thereby greatly improving the punching speed and stability of the punching assembly 1, and the structure is compact.

[0071] In actual process, the punching device may be in a shutdown state due to uncertain factors such as power failure. In order to protect the user's operating safety, the punching device in this state needs to be in a non-punching state, and the moving roller 21 in the feeding assembly 2 in the non-punching state is pressed against the fixed roller 22. When the user replaces or moves the material belt 41, the moving roller 21 needs to be lifted. In order to facilitate lifting the moving roller 21, in this embodiment, the connecting rod close to the mounting plate 232 is changed to facilitate lifting the moving roller 21. That is, change as Fig. 9The third connecting rod 2333 is an elastic telescopic rod to facilitate lifting the moving roller 21.

[0072] Specifically, the third connecting rod 2333 includes a first rod body 23331, a second rod body 23332, a sleeve 23333, a guide member 23335 and an elastic member 23336. The sleeve 23333 is used to define a sliding cavity 23334. The sliding cavity 23334 is arranged in the sleeve 23333, wherein the guide member 23335 and the elastic member 23336 are both arranged in the sleeve 23333. The first rod body 23331 and the second rod body 23332 are arranged opposite to each other, and one end of the first rod body 23331 close to the second rod body 23332 is inserted into the sliding cavity 23334, and the guide member 23335 is connected to the end of the first rod body 23331; the elastic member 23336 biases the guide member 23335 to provide buffering power, wherein the elastic member 23336 is sleeved on the end of the first rod body 23331. That is, one end of the elastic member 23336 is arranged on the guide member 23335, and the other end is arranged in the sliding cavity 23334. By manually pushing the sleeve 23333, the end of the second rod body 23332 abuts against the guide member 23335 in the sleeve 23333, so that the second rod body 23332 is lifted, thereby driving the mounting plate 232 to move, and then the movable roller 21 is moved away from the fixed roller 22.

[0073] Of course, in other embodiments, the end of the second rod portion 23332 is inserted into the sliding cavity 23334, the guide member 23335 is connected to the end of the second rod portion 23332, and the elastic member 23336 is sleeved on the end of the second rod portion 23332. By manually pushing the first rod portion 23331, the first rod portion 23331 abuts against the guide member 23335 in the sleeve 23333, thereby driving the second rod portion 23332 to lift, thereby driving the mounting plate 232 to move, and thereby making the movable roller 21 away from the fixed roller 22.

[0074] In order to adjust the distance between the first rod portion 23331 and the second rod portion 23332, an adjustable space needs to be reserved in advance between the adjacent ends of the first rod portion 23331 and the second rod portion 23332. The elastic member 23336 may be a spring or the like.

[0075] See also Fig.13 , Fig.13 It is a schematic structural diagram of the second embodiment of the feeding assembly in the die-based punching device of the present application.

[0076] Combination Figure 3 and Figure 6In order to improve the precision of the punching device for punching finished products, in the second embodiment of the feeding assembly 3, it is used for the mold assembly 11 to convey the material strip 41. The feeding assembly 3 includes a moving roller 31, a fixed roller 32, and a second power transmission assembly 34, wherein the driving assembly 13 and the second power transmission assembly 34 are connected through a controller (not shown in the figure), that is, when the controller controls the driving assembly 13 to drive the first power transmission assembly 12 to move, the first power transmission assembly 12 drives the second mold base 112 to approach the first mold base 111 to punch the material strip 41; the controller controls the second power transmission assembly 34 to move, and the second power transmission assembly 34 drives the moving roller 31 away from the fixed roller 32 to make the material strip 41 in a loose state, thereby suspending the conveying of the material strip 41.

[0077] In addition, when the controller controls the driving component 13 to drive the first power transmission component 12 to return to its original position, the first power transmission component 12 drives the second mold base 112 away from the first mold base 111 to release the punching of the material strip 41; at the same time, the controller drives the second power transmission component 34 to move, and the second power transmission component 34 drives the moving roller 31 to approach the fixed roller 32 and press the material strip 41 on the fixed roller 32, thereby realizing the conveying of the material strip 41.

[0078] The driving assembly 13 and the second power transmission assembly 34 are both controlled by the controller to enable the feeding assembly 3 to move along with the punching assembly 1. When the punching assembly 1 is punching, the feeding assembly 3 releases the material belt 41; when the punching assembly 1 is not punching, the feeding assembly 3 conveys the material belt 41, thereby improving the punching accuracy of the punching device and increasing the punching speed.

[0079] In order to install the fixed roller 32, the second power transmission assembly 34 in this embodiment includes a fixed bracket 341, and the fixed roller 32 is rotatably supported on the fixed bracket 341. In order to move the movable roller 31, the second power transmission assembly 34 includes a movable roller driving member 342, and the movable roller driving member 342 is connected to the movable roller 31. The controller controls the movable roller driving member 342 to control the movable roller 31 to approach or move away from the fixed roller 32. The movable roller driving member 342 can be a movable roller cylinder to realize the reciprocating motion of the movable roller 31.

[0080] Specifically, the second power transmission assembly 34 further includes a transition roller 33 , which is disposed on the fixed bracket 341 and parallel to the fixed roller 32 , and the material belt 41 passes between the movable roller 31 and the fixed roller 32 and passes through the transition roller 33 .

[0081] The fixed bracket 341 is provided with a fixed roller driving member (not shown in the figure), which is connected to the fixed roller 32 to drive the fixed roller 32 to rotate, thereby realizing the conveyance of the material belt 41. The fixed roller driving member can be a fixed roller motor.

[0082] It can be known from the feeding assembly 2 in the first embodiment and the feeding assembly 3 in the second embodiment that, in the first embodiment, the pressing control is performed by the connecting rod assembly 233; in the second embodiment, the pressing control is performed by the moving roller cylinder, and then both move together with the punching die 11. When the die assembly 11 is in the punching state, the feeding assembly 2 and the feeding assembly 3 both relax the material belt 41; after the die assembly 11 is in the punching state, the feeding assembly 2 and the feeding assembly 3 are both in a loose state, that is, in a state of transmitting the material belt 41.

[0083] Since the material strip 41 in the feeding assembly 3 in the second embodiment is pulled by the fixed roller 32, there is a cumulative error in the pulling of the fixed roller 32 during the punching process of the punching assembly 1. For example, the fixed roller 32 has a fixed distance of L for each fixed-distance conveying, the diameter of the fixed roller 32 is D, and the radius is R. The angle that the fixed roller 32 needs to rotate is L / 2D*360, and there is a remainder in the angle. At the same time, the fixed roller driving member drives the fixed roller 32 to rotate through the reducer, and there is also a certain error. Therefore, as the number of rotations of the fixed roller 32 increases, the angle remainder and the error formed by the fixed roller driving member driving the fixed roller 32 are gradually accumulated, resulting in the deviation of the holes punched by the material strip 41 before and after being non-concentric. Therefore, the intermittent pressing method of the cylinder cannot meet the reaction time requirements of the moving roller driving member and the punching assembly 1 intermittently pressing the fixed roller 32 during the speed increase process, and the time point of pressing is difficult to control, which limits further speed increase and precision improvement.

[0084] Therefore, compared with the feeding assembly 3 in the second embodiment, the feeding assembly 2 in the first embodiment uses the connecting rod assembly 233 to directly convert the rotational power of the motor 131 into the clamping force of the feeding assembly 32, and the clamping force is adjustable. The clamping time completely matches the punching timing of the punching assembly 1, which greatly improves the punching speed, stability and accuracy, and the structure is compact.

[0085] See also Fig.14 and Fig.15 , Fig.14 It is a top view of the cooperation between the positioning pin and the positioning hole in the die-cutting device based on the mold of the present application; Fig.15 yes Fig.14 Schematic diagram of the structure of the positioning needle shown.

[0086] Combination Figure 3 and Figure 6When the punching assembly 1 is in the punching state, the material strips 41 in the feeding assemblies 2 and 3 are in a loose state; when the punching assembly 1 is in the non-punching state, the material strips 41 in the feeding assemblies 2 and 3 are in a compressed state. However, as the working time of the punching device increases, the material strips 41 may have a cumulative pulling error. In order to compensate for the error caused by the pulling of the material strip 41, in this embodiment, the mold assembly 11 is provided with a positioning pin 5 and a positioning hole 411 to cooperate with each other to solve the cumulative pulling error of the material strip 41. The positioning pin 5 can be set at any position in the mold assembly 11, as long as it can cooperate with the positioning hole 411 on the material strip 41. In this embodiment, the positioning pin 5 is located on the second mold base 112.

[0087] Specifically, the second die base 112 is provided with a positioning pin 5, which extends toward the first die base 111, and one end of the positioning pin 5 facing the first die base 111 is a cone. The material strip 41 is provided with a positioning hole 411, and when the second die base 112 moves toward the first die base 111, the positioning pin 5 is inserted into the positioning hole 411 to adjust the position of the material strip 41 through the cone, so as to position the material strip 41 and prevent the second die base 112 and the first die base 111 from having a deviation in the punching position, thereby affecting the accuracy of the punching hole of the finished product 42.

[0088] In the actual process, when the driving assembly 13 drives the mold assembly 11 to move, the material strip 41 enters the punching state; at the same time, the moving rollers 21, 31 and the fixed rollers 22, 32 are in a loose state, and the positioning pin 5 moves with the second mold base 112 toward the material strip 41 and enters the positioning hole 411 pre-punched in the material strip 41. Fig.14 As shown, if the positioning hole 411 and the positioning pin 5 are in state a, it is an ideal state, and the material strip 41 is in the preset position; if state b occurs, there is a cumulative error, but the error can be eliminated. Since the upper end of the positioning pin 5 is a cone, if its upper vertex is still in the positioning hole 411, the material strip 41 can be moved to the preset position. If state c occurs, the upper end of the positioning pin 5 can no longer be directly inserted into the positioning hole 411, and even state d occurs, the entire positioning pin 5 is not under the positioning hole 411, then an alarm or shutdown processing is issued.

[0089] In order to further improve the observation of the pulling error problem of the material strip 41, the punching device further includes a detection component (not shown in the figure), the detection component includes a signal receiving end and a signal sending end, the signal receiving end and the signal sending end are arranged in the mold assembly 11, wherein the signal receiving end and the signal sending end are respectively arranged on both sides of the material strip 41 and respectively face the positioning holes 411.

[0090] When the mold assembly 11 is in the punching state, the connection between the signal sending end and the signal receiving end is not blocked, so it is judged that the material strip 41 is in the preset state at this time; when the connection between the signal sending end and the signal receiving end is blocked, there is a cumulative error in the material strip 41, and the punching device alarms or stops processing. The above detection component can be a photoelectric sensor, etc., which is not limited here.

[0091] This embodiment is based on a die-cutting device, which includes a die-cutting assembly, which includes a die assembly, a die assembly, a first power transmission assembly and a drive assembly, and the die assembly includes a first die base and a second die base that move relative to each other along a preset direction. The first power transmission assembly is arranged on a side of the second die base away from the first die base. The drive assembly is used to drive the first power transmission assembly to reciprocate along a preset direction, so that the first power transmission assembly pushes the second die base to move toward the first die base in an abutting manner during the movement toward the second die base, that is, the first power transmission assembly is not rigidly connected to the second die base, which improves the processing accuracy of the die-cutting assembly and reduces the unevenness and wear of the die assembly.

[0092] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A die-based punching device, characterized in that: The invention comprises a punching assembly, wherein the punching assembly comprises: The mold assembly includes a first mold base and a second mold base that move relative to each other in a preset direction; A first power transmission component is disposed on a side of the second mold base facing away from the first mold base; a driving assembly, configured to drive the first power transmission assembly to reciprocate along the preset direction, so that the first power transmission assembly pushes the second mold base to move toward the first mold base in an abutting manner during the movement toward the second mold base; The punching device further comprises: A feeding assembly, used for conveying a material strip to the mold assembly, the feeding assembly comprising a moving roller, a fixed roller, and a second power transmission assembly, wherein the second power transmission assembly is connected between the driving assembly and the moving roller, so as to drive the moving roller away from the fixed roller when the second mold base approaches the first mold base, thereby suspending the conveyance of the material strip, and to drive the moving roller to press the material strip against the fixed roller when the second mold base moves away from the first mold base; The driving assembly includes a motor and an eccentric shaft, the eccentric shaft is connected to the output shaft of the motor, the first power transmission assembly includes a connecting rod and a first bracket, the first bracket is guided and limited along the preset direction, the connecting rod is movably connected between the eccentric shaft and the first bracket, and is used to convert the eccentric rotation of the eccentric shaft into the reciprocating motion of the first bracket along the preset direction; A convex mold is arranged on one side of the second mold base facing the first mold base.

2. The punching device according to claim 1, characterized in that: The first power transmission assembly further includes an adjustment mechanism and a power transmission block, the adjustment mechanism is connected between the first bracket and the power transmission block, the power transmission block is used to abut the second mold base, and the adjustment mechanism is used to adjust the distance between the power transmission block and the second mold base.

3. The punching device according to claim 2, characterized in that: The regulating mechanism comprises: A second bracket, mounted on the first bracket; An adjusting rod, which is passed through the second bracket and has one end connected to the power transmission block; A locking member is adjustably connected to the other end of the adjusting rod so as to adjust the distance between the power transmission block and the second mold base by adjusting the locking position of the adjusting rod relative to the second bracket.

4. The punching device according to any one of claims 1-2, characterized in that: The mold assembly further includes a stripper plate and a fixed plate, the stripper plate is arranged close to the second mold base, the stripper plate is provided with an avoidance hole for the male mold to pass through, the fixed plate is arranged on a side of the stripper plate away from the second mold base and is provided with a female mold, and the material strip is located between the stripper plate and the fixed plate; The first die base is elastically connected to the stripper plate to provide the stripper plate with an elastic supporting force toward the second die base; When the second die base moves toward the first die base, the second die base presses the unloading plate and the fixed plate onto the first die base, so that the punch and the die cooperate with each other to punch and cut the material strip; when the second die base moves away from the first die base, the punch moves out of the avoidance hole, and then the waste material adhering to the punch is removed through the unloading plate.

5. The punching device according to claim 4, characterized in that: The mold assembly includes a top cover, the first mold base is provided with a through groove corresponding to the concave mold, and the top cover is provided on the through groove to cooperate with the first mold base and the fixed plate to form a discharge space; The punching device further comprises a discharge assembly, wherein the discharge assembly comprises: A discharge pipe connected to the discharge space; A negative pressure device is connected to the discharge pipe to extract the waste in the discharge space through the discharge pipe.

6. The punching device according to any one of claims 1-2, characterized in that: The second mold base is provided with a positioning pin extending toward the first mold base, and the end of the positioning pin facing the first mold base is a cone. The material strip punched by the punching assembly is provided with a positioning hole. When the second mold base moves toward the first mold base, the positioning pin is inserted into the positioning hole to adjust the position of the material strip through the cone.

7. The punching device according to claim 6, characterized in that: The punching device further includes a detection component, which includes a signal receiving end and a signal sending end. The signal receiving end and the signal sending end are arranged in the mold component and are respectively located on both sides of the material strip and respectively face the positioning holes.

8. The punching device according to claim 1, characterized in that: The reciprocating motion of the second die holder relative to the first die holder and the reciprocating motion of the moving roller relative to the fixed roller are parallel to each other.

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