Punching knife device of punching dotter

Abstract

The utility model discloses a stamping knife device of a punching dotter, and relates to the field of dotters. The device comprises an upper stamping knife assembly, a lower die and an upper die, the upper stamping knife assembly and the upper die are both installed on a punch of the button punching machine, the lower die is fixedly installed on a machine body bottom beam of the button punching machine, an inner ring of the lower die is provided with a stamping knife edge, the upper stamping knife assembly comprises a stamping knife, and a discharging piece capable of elastically stretching out and drawing back is installed in the stamping knife. And one end of the discharging piece extends out of the cutting edge of the stamping knife. When the upper stamping knife assembly moves downwards to punch cloth on the lower die, as the upper stamping knife assembly is gradually close to the cloth, the discharging piece can retract into the stamping knife under the abutting action of the cloth, and after the stamping knife completes punching on the cloth, the discharging piece can reset and stretch out of the stamping knife under the elastic effect, so that the discharging piece is prevented from being damaged. And the waste material punched into the punching knife edge of the inner ring of the lower die is downwards pushed and discharged, so that the waste material is prevented from being accumulated in the punching knife edge to influence the alignment riveting of subsequent buttons.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of punch -down machine, concretely, especially relate to a punch -down machine's punch cutter device. BACKGROUND

[0002] The punch -down machine is first carried out punch operation on the belt or cloth etc. carrier, then rivets the male buckle and the female buckle from the punch point upper and lower two ends. The punch cutter for the punch -down machine currently, its defects are that after punching, the waste is easy to accumulate at the cutting knife mouth of the lower mould, the next bottom buckle pushed by the push rod is not pushed in place, which affects the riveting of the upper and lower buckles, on the other hand, when the upper buckle is riveted downward, the upper buckle and the upper mould sometimes will occur eccentricity, and the effect is not good when riveting downward in eccentricity. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems in the related art, the utility model provides a punch -down machine's punch cutter device to overcome the above technical problems existing in the prior art.

[0004] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0005] The utility model discloses a punch -down machine's punch cutter device, characterized by comprising upper punch cutter assembly, lower mould and upper mould, the upper punch cutter assembly and upper mould are all fixedly installed on the punch head of punch -down machine, and the upper mould is sleeved on the outer ring of upper punch cutter assembly, the lower mould is fixedly installed on the body bottom beam of punch -down machine, the inner ring of lower mould is provided with punch cutter mouth, the upper punch cutter assembly includes punch cutter, the inside of punch cutter is installed with the elastic telescopic material removal piece, and one end of material removal piece extends to the outside of punch cutter mouth, the bottom surface of upper mould is provided with the mould cavity that is in line with the upper buckle, and the outer ring of upper mould bottom surface is also provided with the magnetic attraction piece that can adsorb and position the upper buckle.

[0006] Further, the material removal piece includes punch core and spring, the punch core is slidably installed in the inside of punch cutter, and the spring is installed at the top end in the inside of punch cutter, and the bottom end of spring abuts against the top end of punch core.

[0007] Further, the top end of punch cutter is rotatably installed with screw, the bottom end of screw extends to the inside of punch cutter and abuts against the top end of spring.

[0008] Further, the center of punch core is provided with vertical through hole, the bottom end of punch core is provided with punch block, and the inside of punch block is provided with recess that is communicated with through hole.

[0009] Further, the inside of punch cutter is fixedly installed with the limiting rod that is slidably inserted with through hole, and the bottom end of limiting rod extends into recess and is fixedly installed with the limiting boss that is slidably connected with recess.

[0010] Further, the magnetic attraction member comprises a plurality of magnets, and the plurality of magnet members are arranged at the outer circle of the lower end of the upper die.

[0011] The utility model has the following beneficial effects:

[0012] 1. In the utility model, when the upper punch assembly is descending to punch the cloth (leather) on the lower die, the discharging member can retract into the interior of the punch under the abutment of the cloth (leather) as the upper punch assembly gradually approaches the cloth (leather), and when the punch completes the punching on the cloth (leather), the discharging member can extend to the exterior of the punch under the elastic action and push the waste material in the punch opening of the lower die to the outside, thereby preventing the waste material from accumulating in the punch opening and affecting the subsequent riveting of the button.

[0013] 2. In the utility model, when the upper die is riveting downward, the magnetic attraction member can attract the upper button by magnetic force and match the die cavity of the upper die, so that the upper button is arranged concentrically with the upper die, thereby improving the riveting effect of the subsequent upper button and bottom button.

[0014] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, the drawings obtained from these drawings can also be obtained without creative labor.

[0016] Figure 1 It is a three-dimensional sectional structure schematic view of the extraction device of the utility model.

[0017] In the figure: 1, screw; 2, punch; 3, spring; 4, punch core; 5, bottom button; 6, lower die; 7, upper die; 8, magnet; 9, upper button. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the components or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0020] Please refer to Figure 1 As shown in the utility model is a punch of punch and die device, it is characterized by: including upper punch assembly, lower die 6 and upper die 7, upper punch assembly and upper die 7 are all fixedly installed on the punch of punch and die machine, and upper die 7 is sleeved on the outer circle of upper punch assembly, lower die 6 is fixedly installed on the body bottom beam of punch and die machine, and the inner circle of lower die 6 is provided with punch opening, upper punch assembly includes punch 2, the inside of punch 2 is provided with elastic telescopic material discharging element, and one end of material discharging element extends to the outside of punch 2 opening, the bottom surface of upper die 7 is provided with die cavity that is in line with upper buckle 9, and the outer circle of the bottom surface of upper die 7 is also provided with magnetic attraction element that can adsorb and position upper buckle 9;

[0021] When punch and die machine works, the cloth material is covered and fixed on the top surface of lower die 6, then upper punch assembly is driven to go down by punch, along with upper punch assembly and cloth material gradually approaching, material discharging element can retract to the inside of punch 2 under the abutment of cloth material, and when punch 2 completes punching on cloth material, material discharging element can reset and extend to the outside of punch 2 under the action of elasticity, and push and discharge the waste material in the punch opening of inner circle of lower die 6 downwards, then punch drives upper punch assembly and upper die 7 to move upwards, so that the bottom end of upper die 7 is aligned with upper buckle 9, magnetic attraction element adsorbs upper buckle 9 made of metal material into the die cavity of the bottom surface of upper die 7 by magnetic force, and bottom buckle 5 is put into lower die 6, then upper die 7 and lower die 6 are closed by punch, so as to rivet upper buckle 9 and bottom buckle 5;

[0022] The waste material under the punching is discharged by material discharging element, which can prevent the waste material from accumulating in the punch opening and affecting the subsequent positioning and riveting of bottom buckle 5, and by setting die cavity and magnetic attraction element on upper die 7, not only the adsorption and positioning of upper buckle 9 are facilitated, but also upper buckle 9 is concentrically arranged with upper die 7 when adsorbing and positioning upper buckle 9, which is beneficial to improve the riveting effect of upper buckle 9 and bottom buckle 5.

[0023] Specifically, the magnetic attraction element includes a plurality of magnets 8, and the plurality of magnets 8 are peripherally distributed and installed at the outer circle of the lower end of upper die 7, when upper die 7 approaches upper buckle 9, upper buckle 9 is adsorbed and fixed in the die cavity of the bottom end of upper die 7, and when riveting is completed, upper buckle 9 is riveted with bottom buckle 5 as a whole, upper die 7 resets, and upper die 7 is separated from bottom buckle 9.

[0024] Specifically, the discharging part includes a punch core 4 and a spring 3, the punch core 4 is slidingly installed in the inside of the punch 2, the spring 3 is installed at the top end of the inside of the punch 2, the bottom end of the spring 3 abuts against the top end of the punch core 4, and the bottom end of the punch core 4 is initially extended to the outside of the bottom end of the punch 2 under the elastic action of the spring 3, when the punch 2 is downwardly punching the cloth (leather), the punch core 4 is retracted to the inside of the punch 2 by the cloth (leather), until the punch 2 punches the cloth (leather) in the punch opening of the inner ring of the lower die 6, the punch core 4 is reset downwardly under the reset elastic force of the spring 3, and the punched waste is pushed downwardly to prevent the waste from being stuck in the punch opening of the lower die 6.

[0025] Specifically, the top end of the punch 2 is rotationally installed with a screw 1, the bottom end of the screw 1 extends to the inside of the punch 2 and abuts against the top end of the spring 3, by rotating the screw 1, the distance of the bottom end of the screw 1 extending to the inside of the punch 2 can be adjusted, so that the height of the top end of the spring 3 abutting against the screw 1 is adjusted, the abutting elastic force of the spring 3 against the punch core 4 is adjusted, the force of the punch core 4 is moderate, so as to ensure that the punch core 4 can complete the abutting discharging of the waste and will not affect the normal punching process of the punch device.

[0026] Specifically, the punch core 4 is provided with a vertical through hole in the center, the bottom end of the punch core 4 is provided with a punch block, the inside of the punch block is provided with a groove in communication with the through hole, the inside of the punch 2 is fixedly installed with a limiting rod slidingly inserted into the through hole, the bottom end of the limiting rod extends into the groove and is fixedly installed with a limiting boss slidingly connected with the groove, the bottom end of the punch core 4 is limited by the limiting boss and the groove, so as to prevent the punch core 4 from sliding downwardly from the punch 2 and ensure the normal and stable work of the punch core 4.

[0027] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model.

Claims

1. A punching device for a punching and buckling machine, characterized in that: The machine includes an upper punch assembly, a lower die (6), and an upper die (7). The upper punch assembly and the upper die (7) are both fixedly installed on the punch head of the punching and fastening machine, and the upper die (7) is sleeved on the outer ring of the upper punch assembly. The lower die (6) is fixedly installed on the bottom beam of the machine body. The inner ring of the lower die (6) is provided with a punching edge. The upper punch assembly includes a punch (2). The punch (2) has a retractable material discharge component installed inside, and one end of the material discharge component extends to the outside of the punch (2) cutting edge. The bottom surface of the upper die (7) is provided with a mold cavity that matches the upper buckle (9). The outer ring of the bottom surface of the upper die (7) is also provided with a magnetic suction component that can adsorb and position the upper buckle (9).

2. The punching device of a punching and buckling machine according to claim 1, characterized in that: The discharge component includes a punch (4) and a spring (3). The punch (4) is slidably installed inside the punch (2). The spring (3) is installed at the top of the punch (2), and the bottom end of the spring (3) abuts against the top end of the punch (4).

3. The punching device of a punching and buckling machine according to claim 2, characterized in that: The top of the punch (2) is rotatably mounted with a screw (1), the bottom end of which extends into the interior of the punch (2) and abuts against the top of the spring (3).

4. The punching device of a punching and buckling machine according to claim 2, characterized in that: The punch (4) has a vertical through hole at its center, and a punch block is provided at the bottom of the punch (4). The punch block has a groove inside that communicates with the through hole.

5. The punching device of a punching and buckling machine according to claim 4, characterized in that: The punch (2) is internally fixedly equipped with a limiting rod that slides into the through hole. The bottom end of the limiting rod extends into the groove and is fixedly equipped with a limiting boss that slides into the groove.

6. The punching device of a punching and buckling machine according to claim 1, characterized in that: The magnetic suction component includes multiple magnets (8), and the multiple magnets (8) are circumferentially distributed and installed on the outer circle of the lower end of the upper mold (7).

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