Stamping die with variable die cavity

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with a variable die cavity, which comprises a workbench, a lower die and two supporting plates, adjusting mechanisms are arranged on the workbench and positioned at two ends of the lower die, and the adjusting mechanisms are arranged to drive the two supporting plates to slide so as to adjust the die cavity of the lower die. According to the stamping die with the variable die cavity, an ejection plate is fixed through a limiting assembly, a second air cylinder drives the ejection plate fixed through the limiting assembly to slide, a plate in the lower die is ejected out, a push plate and a supporting plate are driven to slide through a first air cylinder, the size of the die cavity of the lower die is adjusted, and the push plate drives a sliding plate and a sliding rod to slide when sliding; when the sliding rods are in contact with the limiting assemblies during sliding, fixation of the ejection plates at the relative positions is relieved, and the size of a metal plate is adjusted, relative adjustment of the number of the ejection plates is achieved, the provided ejection force can also be adjusted along with the ejection plates, and therefore when the large-size plate is ejected, the plate can be effectively and completely ejected out of the lower mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch die technical field, concretely is a kind of punch die of die cavity variable. BACKGROUND

[0002] The application field of punch die is very extensive, so the size of the die is also various, according to different production needs, the die of corresponding size needs to be produced, and the operation range is small in actual use, so the die needs to be replaced to realize different production needs, and it is time-consuming and laborious to replace the die, which reduces production efficiency.

[0003] Through the search, China patent discloses a kind of punch die of die cavity variable (publication number is CN221454077U), the die is driven by adjusting air cylinder, so that the support plate on both sides is synchronously slid to opposite or opposite side, so that the size of die cavity space can be freely adjusted for different models of metal plate, to improve production efficiency, by being provided with ejector mechanism, so that the plate material of punch forming can be more conveniently taken out, but the ejector plate size is fixed when using to eject plate material, because the metal plate of different sizes needs to be ejected, so the size of ejector plate cannot be too large, when ejecting the plate material of larger size, the ejecting force provided is relatively small, cannot effectively eject the plate material from die completely, for this, we propose a kind of punch die of die cavity variable. UTILITY MODEL CONTENT

[0004] One of the technical problems to be solved by the present application is that the ejector plate size for ejecting plate material is fixed, because the metal plate of different sizes needs to be ejected, so the size of ejector plate cannot be too large, when ejecting the plate material of larger size, the ejecting force provided is relatively small, cannot effectively eject the plate material from die completely.

[0005] To solve the above technical problems, the embodiment of the present application provides a kind of punch die of die cavity variable, including workbench, lower die and two support plates, the workbench is provided with adjusting mechanism, the adjusting mechanism is located at the two ends of lower die, the adjusting mechanism is driven to slide two support plates to realize the adjustment of lower die die cavity;

[0006] Ejector mechanism, the ejector mechanism is arranged at the bottom of workbench, a plurality of ejector plates are arranged on the ejector mechanism, the ejector mechanism is driven to slide a plurality of ejector plates to realize the ejection of plate material from die cavity, and the ejector mechanism is slidably connected on adjusting mechanism, according to the progress of adjusting die cavity, the corresponding ejector plate is separated from ejector mechanism by adjusting mechanism, to adjust the ejecting range of ejector plate.

[0007] In some embodiments, the adjusting mechanism comprises first air cylinders mounted at both ends of the workbench, the output ends of the first air cylinders are provided with push plates in sliding connection with the workbench, the push plates are in an inverted L shape, and the push plates extend into the upper end of the lower mold and are fixedly connected with the supporting plates.

[0008] In some embodiments, the ejection mechanism comprises a second air cylinder, the bottom of the workbench is provided with a bottom plate, the center of the bottom plate is provided with a U-shaped recess for placing and fixing the second air cylinder, the output end of the second air cylinder is provided with a lifting plate, a plurality of ejection plates are slidingly mounted at both ends of the lifting plate, and a plurality of limiting assemblies are further arranged in the lifting plate and located at both sides of the plurality of ejection plates for fixing the plurality of ejection plates.

[0009] In some embodiments, when the bottom end of the ejection plate is attached to the top of the bottom plate, the top end of the ejection plate is flush with the inner surface of the mold cavity of the lower mold.

[0010] In some embodiments, the ejection mechanism further comprises a sliding rod slidingly mounted in the lifting plate, the limiting assembly is separated from the ejection plate by sliding the sliding rod, one end of the sliding rod extending out of the lifting plate is connected with a sliding plate, and the sliding plate is slidingly sleeved at the lower end of the push plate located at the bottom of the workbench.

[0011] In some embodiments, the limiting assembly comprises a plurality of sliding grooves formed at both sides of the lifting plate, the sliding grooves are in sliding connection with positioning blocks, the positioning blocks and the sliding grooves are elastically connected through limiting springs, and both sides of the ejection plate are provided with positioning grooves matched in size with the positioning blocks.

[0012] In some embodiments, one side of the positioning block extending out of the sliding groove is provided with a first inclined surface, and one end of the sliding rod located in the lifting plate is provided with a second inclined surface in sliding abutment with the first inclined surface.

[0013] The utility model at least has the following beneficial effects:

[0014] The ejection plate is fixed through the limiting assembly, the ejection plate fixed by the limiting assembly is driven to slide through the second air cylinder, the ejection of the plate in the lower mold is realized, the push plate and the supporting plate are driven to slide through the first air cylinder, the size of the mold cavity of the lower mold is adjusted, the sliding plate and the sliding rod are driven to slide when the push plate slides, the sliding rod is in contact with the limiting assembly when the sliding rod slides, the fixing of the ejection plate in the relative position is released, the number of the ejection plates is adjusted when the size of the metal plate is adjusted, the ejection force provided can also be adjusted, therefore, when the plate with a large size is ejected, the plate can also be effectively ejected from the lower mold in an integrated manner. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model embodiment 1;

[0016] Figure 2 It is the adjusting mechanism schematic view of the embodiment 1 of the utility model;

[0017] Figure 3 It is the ejector mechanism schematic view of the utility model;

[0018] Figure 4 It is the push plate and ejector mechanism connection relation schematic view of the utility model;

[0019] Figure 5 It is the structure lower mould internal structure plan view of the utility model;

[0020] Figure 6 It is the lifting plate internal structure section schematic view of the utility model;

[0021] Figure 7 It is the utility model Figure 6 It is the structure enlarged view of the embodiment 1 of the utility model;

[0022] Figure 8 It is the overall structure schematic view of the embodiment 2 of the utility model;

[0023] Figure 9 It is the adjusting mechanism schematic view of the embodiment 2 of the utility model.

[0024] In the drawing: 1, workbench;2, lower mould;3, support plate;4, adjusting mechanism;401, first cylinder;402, push plate;5, ejector mechanism;6, bottom plate;7, second cylinder;8, lifting plate;9, ejector plate;10, sliding plate;11, sliding rod;12, limit component;13, sliding groove;14, limit spring;15, positioning block;16, positioning groove;17, first splicing plate;18, second splicing plate. Specific implementation

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0026] Embodiment 1

[0027] Please refer to Figures 1-7 The utility model provides a kind of technical scheme: a variable die cavity stamping die, including workbench 1, lower mould 2 and two support plates 3, workbench 1 is provided with adjusting mechanism 4, adjusting mechanism 4 is located at the two ends of lower mould 2, adjusting mechanism 4 is driven two support plates 3 to slide and realizes the adjustment of lower mould 2 die cavity.

[0028] Further, the adjusting mechanism 4 comprises first cylinders 401 installed at both ends of the workbench 1, output ends of the first cylinders 401 are provided with push plates 402 in sliding connection with the workbench 1, the push plates 402 are in an inverted L shape, and the push plates 402 are fixedly connected with the support plates 3 at upper ends of the lower mold 2.

[0029] In use, the first cylinders 401 at both ends are started, the first cylinders 401 at both ends drive the push plates 402 at both ends to slide, the push plates 402 at both ends drive the support plates 3 to slide in opposite directions, so that the size of the mold cavity of the lower mold 2 is adjusted, the production requirements of different sizes of plates are met, and the production efficiency is improved.

[0030] The ejection mechanism 5 is arranged at the bottom of the workbench 1, a plurality of ejection plates 9 are arranged on the ejection mechanism 5, the ejection mechanism 5 drives the plurality of ejection plates 9 to slide to realize the ejection of the plate from the mold cavity, and the ejection mechanism 5 is in sliding connection with the adjusting mechanism 4, according to the adjustment process of the mold cavity, the adjusting mechanism 4 is used to drive the corresponding ejection plate 9 to separate from the ejection mechanism 5, so as to adjust the ejection range of the ejection plate 9.

[0031] Further, the ejection mechanism 5 comprises a second cylinder 7, a bottom plate 6 is installed at the bottom of the workbench 1, a U-shaped recess is arranged at the center of the bottom plate 6, and the second cylinder 7 is arranged in the recess, an output end of the second cylinder 7 is provided with a lifting plate 8, a plurality of ejection plates 9 are slidingly installed at both ends of the lifting plate 8, a plurality of limiting assemblies 12 are further arranged in the lifting plate 8 and located at both sides of the plurality of ejection plates 9, and the limiting assemblies 12 are used to fix the plurality of ejection plates 9, when the bottom end of the ejection plate 9 is attached to the top of the bottom plate 6, the top end of the ejection plate 9 is flush with the inner surface of the mold cavity of the lower mold 2.

[0032] The ejection mechanism 5 further comprises a sliding rod 11, the sliding rod 11 is slidingly installed in the lifting plate 8, the limiting assembly 12 is separated from the ejection plate 9 by sliding the sliding rod 11, one end of the sliding rod 11 extending out of the lifting plate 8 is connected with a sliding plate 10, and the sliding plate 10 is slidingly sleeved on the lower end of the push plate 402 located at the bottom of the workbench 1.

[0033] The limiting assembly 12 comprises a plurality of sliding grooves 13 arranged at both sides of the lifting plate 8, a positioning block 15 is slidingly connected in the sliding groove 13, the positioning block 15 and the sliding groove 13 are elastically connected through a limiting spring 14, both sides of the ejection plate 9 are provided with positioning grooves 16 matched with the size of the positioning block 15, one side of the positioning block 15 extending out of the sliding groove 13 is provided with a first inclined surface, and one end of the sliding rod 11 located in the lifting plate 8 is provided with a second inclined surface slidingly abutting against the first inclined surface.

[0034] When the cavity of the lower mold 2 is enlarged, the two push plates 402 slide in opposite directions, driving the sliding plate 10 and the slide rod 11 to slide in opposite directions, the slide rod 11 is out of contact with the positioning block 15, the positioning block 15 is clamped in the positioning groove 16 on both sides of the ejection plate 9 under the pushing force of the limiting spring 14, the fixing of the multiple ejection plates 9 is realized, when the plate with large size is ejected, the second cylinder 7 is started, the second cylinder 7 drives the multiple ejection plates 9 limited by the limiting assembly 12 to slide upwards, so that the multiple ejection plates 9 are in contact with the bottom of the plate, the ejection force is increased, and the plate is effectively ejected from the lower mold 2.

[0035] When the cavity of the lower mold 2 is reduced, the two push plates 402 slide relatively, driving the sliding plate 10 and the slide rod 11 to slide relatively, the second inclined surface of the slide rod 11 is in contact with the first inclined surface of the corresponding positioning block 15, the corresponding positioning block 15 is extruded to slide in the sliding groove 13, and is out of contact with the corresponding ejection plate 9, at this time, the second cylinder 7 is started again, the ejection plate 9 limited by the limiting assembly 12 is driven by the second cylinder 7 to slide upwards, the ejection plate 9 released from the limiting does not move under the influence of its own gravity, the ejection force is reduced, and the plate with small size is ejected from the lower mold 2.

[0036] Embodiment 2

[0037] Please refer to Figure 8 and Figure 9 The utility model provides a technical scheme: on the basis of embodiment 1, another technical scheme is provided: the adjusting mechanism 4 includes the first cylinder 401 installed at both ends of the workbench 1, the output end of the first cylinder 401 is installed with the push plate 402 connected with the workbench 1 slidingly, the push plate 402 includes the first spliced plate 17 and the second spliced plate 18, the top of the first spliced plate 17 is connected with the second spliced plate 18 through bolt, by such design, the first spliced plate 17 and the second spliced plate 18 can be disassembled, subsequent disassembly of the second spliced plate 18 is facilitated, and the lower mold 2, the ejection plate 9 and the supporting plate 3 are replaced.

[0038] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A variable-cavity press tool comprising a table (1), a lower tool (2) and two support plates (3), characterized in that: The workbench (1) is provided with an adjusting mechanism (4) located at both ends of the lower mold (2), which drives the two supporting plates (3) to slide to adjust the cavity of the lower mold (2); The ejection mechanism (5) is provided at the bottom of the workbench (1), and a plurality of ejection plates (9) are arranged on the ejection mechanism (5). The ejection mechanism (5) drives the plurality of ejection plates (9) to slide to realize the ejection of the plate from the mold cavity. The ejection mechanism (5) is slidably connected to the adjusting mechanism (4). According to the adjustment process of the mold cavity, the corresponding ejection plate (9) is separated from the ejection mechanism (5) by the adjusting mechanism (4), so as to adjust the ejection range of the ejection plate (9).

2. The variable-cavity press tool of claim 1, wherein: The adjusting mechanism (4) comprises a first cylinder (401) mounted at both ends of the workbench (1). The output end of the first cylinder (401) is provided with a push plate (402) slidably connected with the workbench (1). The push plate (402) is in an inverted L shape. The push plate (402) is fixedly connected with the supporting plate (3) at the upper end of the lower mold (2).

3. The variable-cavity press tool of claim 1, wherein: The ejection mechanism (5) comprises a second cylinder (7). The bottom of the workbench (1) is provided with a bottom plate (6). The center of the bottom plate (6) is provided with a U-shaped recess for placing and fixing the second cylinder (7). The output end of the second cylinder (7) is provided with a lifting plate (8). A plurality of ejection plates (9) are slidably mounted at both ends of the lifting plate (8). The inside of the lifting plate (8) is further provided with a plurality of limiting assemblies (12) located at both sides of the plurality of ejection plates (9) for fixing the plurality of ejection plates (9).

4. The variable-cavity press according to claim 3, wherein: When the bottom end of the ejection plate (9) is attached to the top of the bottom plate (6), the top end of the ejection plate (9) is flush with the inner surface of the mold cavity of the lower mold (2).

5. The variable-cavity press according to claim 3, wherein: The ejection mechanism (5) further comprises a slide rod (11) slidably mounted in the inside of the lifting plate (8). The slide rod (11) separates the limiting assembly (12) from the ejection plate (9) by sliding. One end of the slide rod (11) extending out of the lifting plate (8) is connected with a sliding plate (10) slidably sleeved on the lower end of the push plate (402) located at the bottom of the workbench (1).

6. A variable-cavity press according to claim 5, wherein: The limiting assembly (12) comprises a plurality of sliding grooves (13) formed at both sides of the lifting plate (8). The sliding grooves (13) are slidably connected with positioning blocks (15). The positioning blocks (15) and the sliding grooves (13) are elastically connected by limiting springs (14). The both sides of the ejection plate (9) are provided with positioning grooves (16) matched in size with the positioning blocks (15).

7. A variable-cavity press tool according to claim 6, wherein: One side of the positioning block (15) extending out of the sliding groove (13) is provided with a first inclined surface. One end of the slide rod (11) located in the inside of the lifting plate (8) is provided with a second inclined surface slidably abutting against the first inclined surface.

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