Movable knife edge cutting mechanism

Abstract

The utility model discloses a movable knife edge cutting mechanism which comprises a lower die plate, and a stripper plate is arranged above the lower die plate in a stacked mode. A slotting tool is arranged on the stripper plate, a lower die knife edge and lower die sliding blocks are arranged in the lower die plate, and the lower die sliding blocks are arranged on the two sides of the lower die knife edge respectively. The two ends of the bottom face of the lower die knife edge are provided with third inclined faces which are beveled inwards, the bottom of the side, close to the lower die knife edge, of the lower die sliding block is provided with inclined halfpace corresponding to the third inclined faces in a matched mode, the inclined halfpace extends towards the third inclined faces and is arranged below the lower die knife edge, and the inclined halfpace abuts against the third inclined faces. The upper end of the side, away from the lower die knife edge, of the lower die sliding block is provided with a first inclined face, and a slotting tool is arranged on the side, away from the lower die knife edge, of the lower die sliding block. According to the utility model, the interference problems caused by lower material floating and lower lowest point of the product than the plate surface of the lower die plate of the stamping die are solved, the interference position material feeding of the product is avoided through the up-down movement of the lower die knife edge, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, in particular to a cutting mechanism with an upper and lower movable knife edge. Background Art

[0002] In the product forming process, the sheet needs to be punched and cut. Punching is to apply pressure to the sheet, strip, pipe or profile by the press and die to cut. The existing punching and cutting die is composed of upper die punch, stripper plate and lower die blade. The punch cooperates with the lower die blade to apply force to the material under the action of the press to separate the material.

[0003] However, with the diversification of products, the shapes of products become more and more complicated. When cutting some products with many bends and complex shapes, in the existing stamping and cutting process, under the condition of machine or equipment stroke limitation, the mold material floating is low, and the lowest point of the product (bending structure) is lower than the template surface of the lower mold. For example, the outer folding spring piece (bending structure) connected to the shell forms an interference structure that hinders automatic material feeding at the lowest point of the product. The product bending structure (lowest point) will interfere with the template or parts in the process of feeding the product into the working surface, affecting the automatic material feeding of the product and hindering the smooth progress of the process. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a cutting mechanism with an upper and lower movable blade, so that the cutting process can perform continuous cutting actions. The upper and lower movable mode of the mechanism can effectively avoid the problem of material movement at the interference part of the product.

[0005] In order to solve the existing technical problems, the utility model adopts the following technical solutions:

[0006] A movable blade cutting mechanism comprises a lower template, a stripper plate is stacked on the lower template; a plunger is arranged on the stripper plate, a lower die blade and a lower die slider are arranged in the lower template, and lower die sliders are arranged on both sides of the lower die blade;

[0007] The two ends of the bottom surface of the lower die blade are provided with a third inclined surface beveled inwardly, and the bottom of the lower die slider close to the lower die blade is provided with an inclined step matching the corresponding third inclined surface, the inclined step extending toward the third inclined surface and arranged below the lower die blade, and the inclined step abutting the third inclined surface;

[0008] A first inclined surface is arranged on the upper end of the lower die slide away from the lower die blade, a plunger is arranged on the upper side of the lower die slide away from the lower die blade, a second inclined surface matching the first inclined surface is arranged at the bottom end of the plunger, and the first inclined surface is arranged adjacent to the second inclined surface.

[0009] Furthermore, in some embodiments, a limit block is provided between the lower die cutting edge and the lower die slider, a limit groove corresponding to the inclined ladder is provided at the bottom of the limit block, the inclined ladder is clamped in the limit groove, a tool seat groove is provided on the lower template, the lower die cutting edge is arranged in the tool seat groove, sliding grooves are provided on both sides of the tool seat groove, the sliding grooves are connected with the tool seat groove, and the lower die slider is arranged in the sliding grooves.

[0010] Furthermore, in some embodiments, a first locking groove is provided on the side wall of the slide groove near one end of the tool holder groove, and locking columns corresponding to the first locking groove are provided on both sides of the limit block, and the locking columns are embedded in the first locking groove.

[0011] Furthermore, in some embodiments, an entry groove is opened in the middle part of the stripping plate, a stripping plate entry is arranged in the entry groove, a second clamping groove is arranged on the side wall of the stripping plate away from the lower template, the second clamping groove is convexly arranged on the outer side of the side wall of the entry groove, and a clamping block matching the second clamping groove is arranged on the upper end of the stripping plate entry, and the clamping block is embedded in the second clamping groove.

[0012] Furthermore, in some embodiments, the stripper plate is provided with a slot for the insert knife to pass through, and an angled surface is provided between adjacent side walls of the slot. The angled surface is provided with a third positioning slot at the end of the stripper plate away from the lower template. The third positioning slot is convexly arranged on the outer side of the side wall of the slot, and the third positioning slot is arranged on a side of the stripper plate away from the lower template.

[0013] Further, in some embodiments, the adjacent side surface of the insert is provided with a one-way bevel cut corresponding to the bevel surface, and the one-way bevel cut is arranged to abut and cooperate with the bevel surface; the one-way bevel cut is provided with a locking angle corresponding to the third locking groove, and the locking angle is embedded in the third locking groove.

[0014] Furthermore, in some embodiments, a stripping insert is provided above the lower die blade, a cutting punch matching the lower die blade is provided in the stripping insert, the cutting punch and the lower die blade form a cutting structure; a cutting station is formed between the stripping insert and the lower die blade.

[0015] Furthermore, in some embodiments, the lower template is stacked upward with a stripping plate, a backing plate, and an upper clamping plate, the lower template is provided with a lower mold blade, a limit block, and a lower mold slider, the stripping plate is provided with a knife and a stripping insert, the upper clamping plate is provided with a cutting punch, and the cutting punch passes through the backing plate and is set in the stripping insert.

[0016] The utility model is applied to RJ connectors for cutting loose PIN products, and improves the interference problem caused by the low floating of stamping die materials and the lowest point of the product (interference part) being lower than the plate surface of the lower template. The lower die blade moves up and down to avoid the product interference position, and adopts a cutting structure with upper and lower movable blades to improve production efficiency.

[0017] In the present application, the insert knife is fixed on the stripping plate, and the lower mold slider is installed in the lower mold plate. The insert knife drives the lower mold slider to move left and right, and the lower mold slider further drives the lower mold blade to move up and down, so that the lower mold blade moves downward to play a material feeding role, thereby achieving avoidance at the work station when the product and the material strip move. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an exploded view of an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a mold layer according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the assembly of an embodiment of the present application;

[0021] Figure 4 A cross-sectional structural diagram of an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of an embodiment of the present application;

[0023] Figure 6 This is a process state diagram of an embodiment of the present application;

[0024] Figure 7 This is a schematic diagram of the structure of the template part under the embodiment of the present application;

[0025] Figure 8 This is a schematic structural diagram of the stripping plate portion of an embodiment of the present application.

[0026] Description of reference numerals:

[0027] Upper clamping plate 11, stripping back plate 12, stripping plate 13, lower template 14, lower die blade 15, limiting block 16, lower die slider 17, cutting punch 18, inserting knife 19, stripping plate insert 21, knife seat groove 22, sliding groove 23, first clamping groove 24, inserting groove 25, second clamping groove 26, slot 27, third clamping groove 28, inclined ladder 29, first inclined surface 31, one-way oblique cut 32, second inclined surface 33, limiting groove 34, third inclined surface 35, clamping block 36, clamping angle 38, clamping column 39, bevel surface 41, material strip 51, product 52, interference position 53. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] See attached Figure 2 As shown, attached Figure 2The layered stacking structure of the present application is shown in FIG. 1 , which includes a lower template 14, and a stripping plate 13, a stripping back plate 12, and an upper clamping plate 11 are sequentially stacked upward on the lower template 14. Figure 1 As shown, attached Figure 1 The exploded structure of the parts of the present application is shown in the figure. The stripping plate 13 is provided with an insert knife 19 and a stripping insert 21, the lower mold plate 14 is provided with a lower mold blade 15 and a lower mold slider 17, and the lower mold sliders 17 are respectively provided on both sides of the lower mold blade 15.

[0030] See attached Figure 3 As shown, attached Figure 3 The associated structure of the lower die blade 15 of the present application is shown in the figure. The two ends of the bottom surface of the lower die blade 15 are provided with a third inclined surface 35 beveled inwardly. The bottom of the lower die slider 17 close to the lower die blade 15 is provided with an inclined step 29 matching the corresponding third inclined surface 35. The inclined step 29 extends toward the third inclined surface 35 and is arranged under the lower die blade 15. The inclined step 29 is tightly arranged against the third inclined surface 35.

[0031] Furthermore, in one of the embodiments, a first inclined surface 31 is provided at the upper end of the lower die slider 17 away from the lower die blade 15, a plunger 19 is provided on the upper side of the lower die slider 17 away from the lower die blade 15, a second inclined surface 33 matching the first inclined surface 31 is provided at the bottom end of the plunger 19, and the first inclined surface 31 and the second inclined surface 33 are arranged adjacent to each other; a limit block 16 is provided between the lower die blade 15 and the lower die slider 17, a limit groove 34 matching the inclined ladder 29 is provided at the bottom of the limit block 16, and the inclined ladder 29 is clamped in the limit groove 34.

[0032] Further, in one embodiment, see the attached Figure 5 As shown, attached Figure 5 The figure shows a multi-angle schematic diagram of the cutting structure of the present application, in which a stripping insert 21 is provided above the lower die blade 15, and a cutting punch 18 matching the lower die blade 15 is provided in the stripping insert 21, and the cutting punch 18 and the lower die blade 15 constitute a cutting structure; a cutting station is formed between the stripping insert 21 and the lower die blade 15, and a material strip 51 with a product 52 is arranged in the cutting station between the stripping insert 21 and the lower die blade 15.

[0033] See attached Figure 7 As shown, attached Figure 7The associated structure of the lower template 14 of the present application is shown in the figure, a tool seat groove 22 is opened on the lower template 14, the lower mold blade 15 is arranged in the tool seat groove 22, slide grooves 23 are opened on both sides of the tool seat groove 22, the slide groove 23 is connected with the tool seat groove 22, and the lower mold slider 17 is arranged in the slide groove 23; a first locking groove 24 is opened on the side wall of the slide groove 23 near one end of the tool seat groove 22, and locking columns 39 corresponding to the first locking groove 24 are provided on both sides of the limit block 16, and the locking columns 39 are embedded in the first locking groove 24.

[0034] Further, in one embodiment, see the attached Figure 8 As shown, attached Figure 8 The associated structure of the stripping plate 13 of the present application is shown in the figure, an entry groove 25 is opened in the middle part of the stripping plate 13, and a second clamping groove 26 is provided on the side wall of the entry groove 25 facing the stripping back plate 12. The second clamping groove 26 is convexly arranged on the outer side of the side wall of the entry groove 25, and the second clamping groove 26 is arranged on a side of the stripping plate 13 close to the stripping back plate 12; a stripping plate entry 21 is provided in the entry groove 25, and a clamping block 36 matching the entry groove 25 is provided on the upper end of the stripping plate entry 21, and the clamping block 36 is arranged at one end of the stripping plate entry 21 close to the stripping back plate 12, and the clamping block 36 is embedded in the second clamping groove 26, and the up and down lifting of the stripping plate 13 drives the stripping plate entry 21 to move up and down.

[0035] Slots 27 are provided on both sides of the stripping plate 13, and beveled surfaces 41 are provided between adjacent side walls of the slots 27. A third clamping groove 28 is provided at one end of the beveled surface 41 facing the stripping plate 12. The third clamping groove 28 is convexly arranged on the outer side of the side wall of the slot 27, and the third clamping groove 28 is arranged on one side of the stripping plate 13 close to the stripping plate 12; a knife 19 is provided in the slot 27, and a one-way bevel cut 32 corresponding to the beveled surface 41 is provided on the adjacent side surface of the knife 19, and the one-way bevel cut 32 is arranged adjacent to the beveled surface 41; a clamping angle 38 corresponding to the third clamping groove 28 is provided on the one end of the one-way bevel cut 32 facing the stripping plate 12, and the clamping angle 38 is embedded in the third clamping groove 28, and the up and down lifting of the stripping plate 13 drives the knife 19 to move up and down.

[0036] See attached Figure 4 As shown, attached Figure 4 The cross-sectional structure of the present application is shown in the figure, in which the lower mold plate 14 is provided with a lower mold blade 15, a limit block 16, and a lower mold slider 17, the stripping plate 13 is provided with an insert 19 and a stripping plate insert 21, and the upper clamping plate 11 is provided with a cutting punch 18, which penetrates the stripping back plate 12 and is arranged in the stripping plate insert 21.

[0037] In the present application, the insert knife 19 is fixed on the stripping plate 13, and the lower mold slider 17 is installed in the lower mold plate 14. The insert knife 19 drives the lower mold slider 17 to move left and right, and then the lower mold blade 15 is driven by the lower mold slider 17 to move up and down, so that the lower mold blade 15 plays a material feeding role when moving downward, avoiding the interference position 53 of the product 52.

[0038] See attached Figure 6 , mold closed state:

[0039] When the mold moves downward, the stripper plate 13 of the upper mold part moves vertically downward with the insert knife 19, and the insert knife 19 drives the lower mold slide block 17 to move inward, so that the lower mold blade 15 moves upward. When the mold is in a closed state, the PIN is cut (used for RJ's cut PIN products), and the AA line on the material strip 51 is the cutting position.

[0040] See attached Figure 6 , mold open state:

[0041] When the mold moves upward again, the stripper plate 13 of the upper mold part moves vertically upward with the insert knife 19. After the insert knife 19 is separated from the lower mold slider 17, the lower mold slider 17 moves outward, so that the lower mold blade 15 moves downward, lower than the lowest point (interference position 53) of the product 52 (RJ connector), and the material removal is completed when the mold is opened.

[0042] The present application adopts a side-push cutting structure, in which a plunger 19 cooperates with the inclined surface of the lower die slider 17 to drive the lower die blade 15, and the cutting punch 18 punches downward. The lower die slider 17 further drives the lower die blade 15 to move up and down, thereby achieving avoidance of the product 52 and the material strip 51 when they move, and avoiding the interference position 53 (interference part) on the product 52.

[0043] In the description of this specification, the terms "connect", "install", "fixed", "set", "having", "front", "on", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to the specific circumstances.

[0044] The above description of the embodiments is to facilitate those skilled in the art to understand and apply the technology of the present invention. It is obvious that those skilled in the art can easily make various modifications to these examples and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments.

Claims

1. A movable blade cutting mechanism, comprising: A lower mold plate (14), wherein a stripper plate (13) is stacked on the upper portion of the lower mold plate (14); characterized in that a plunger (19) is provided on the stripper plate (13); a lower mold blade (15) and a lower mold slider (17) are provided in the lower mold plate (14); and the lower mold sliders (17) are provided on both sides of the lower mold blade (15); Two ends of the bottom surface of the lower die blade (15) are provided with a third inclined surface (35) beveled inwardly, and the bottom of the lower die slider (17) close to the lower die blade (15) is provided with an inclined step (29) matching the third inclined surface (35), the inclined step (29) extending toward the third inclined surface (35) and arranged below the lower die blade (15), and the inclined step (29) is arranged in contact with the third inclined surface (35); A first inclined surface (31) is arranged at the upper end of the lower die slide block (17) away from the lower die blade (15), the insert knife (19) is arranged on the upper side of the lower die slide block (17) away from the lower die blade (15), and a second inclined surface (33) matching and corresponding to the first inclined surface (31) is arranged at the bottom end of the insert knife (19), and the first inclined surface (31) and the second inclined surface (33) are arranged adjacent to each other.

2. A movable knife cutting mechanism according to claim 1, characterized in that: A limit block (16) is provided between the lower die blade (15) and the lower die slide block (17); a limit groove (34) matching the inclined ladder (29) is provided at the bottom of the limit block (16); the inclined ladder (29) is clamped in the limit groove (34); a knife seat groove (22) is provided on the lower template (14); the lower die blade (15) is arranged in the knife seat groove (22); sliding grooves (23) are provided on both sides of the knife seat groove (22); the sliding grooves (23) are connected to the knife seat groove (22); and the lower die slide block (17) is arranged in the sliding groove (23).

3. A movable knife-edge cutting mechanism according to claim 2, characterized in that: A first locking groove (24) is provided on a side wall of the slide groove (23) near one end of the knife seat groove (22), and locking columns (39) matching with the first locking groove (24) are provided on both sides of the limit block (16), and the locking columns (39) are embedded in the first locking groove (24).

4. The movable knife cutting mechanism according to claim 1, characterized in that: An entry slot (25) is provided in the middle of the stripping plate (13), a stripping plate entry (21) is provided in the entry slot (25), a second clamping slot (26) is provided on the side wall of the stripping plate (13) at one end away from the lower template (14), the second clamping slot (26) is convexly arranged on the outer side of the side wall of the entry slot (25), a clamping block (36) matching with the second clamping slot (26) is provided at the upper end of the stripping plate entry (21), and the clamping block (36) is embedded in the second clamping slot (26).

5. The movable blade cutting mechanism according to claim 1, characterized in that: The stripping plate (13) is provided with a slot (27) for the insertion of a knife, and an angled surface (41) is provided between adjacent side walls of the slot (27). The angled surface (41) is provided with a third locking groove (28) at one end of the stripping plate (13) away from the lower template (14), and the third locking groove (28) is convexly arranged on the outer side of the side wall of the slot (27). The third locking groove (28) is arranged on one side of the stripping plate (13) away from the lower template (14).

6. A movable knife cutting mechanism according to claim 5, characterized in that: The adjacent side surface of the inserting knife (19) is provided with a one-way oblique cut (32) matching with the oblique angle surface (41), and the one-way oblique cut (32) is arranged to abut against the oblique angle surface (41); the one-way oblique cut (32) is provided with a locking angle (38) matching with the third locking groove (28), and the locking angle (38) is embedded in the third locking groove (28).

7. The movable blade cutting mechanism according to claim 4, characterized in that: The stripping insert (21) is arranged above the lower die blade (15), and a cutting punch (18) matching the lower die blade (15) is arranged in the stripping insert (21), and the cutting punch (18) and the lower die blade (15) form a cutting structure; a cutting station is formed between the stripping insert (21) and the lower die blade (15).

8. The movable knife-edge cutting mechanism according to claim 7, characterized in that: The lower template (14) is stacked with the stripping plate (13), the backing plate (12), and the upper clamping plate (11) in sequence upwards; the lower template (14) is provided with the lower die blade (15), the limit block (16), and the lower die slider (17); the stripping plate (13) is provided with the insert knife (19) and the stripping insert (21); the upper clamping plate (11) is provided with the cutting punch (18); the cutting punch (18) penetrates the backing plate (12) and is then arranged in the stripping insert (21).

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