CN111468612A

CN111468612A - Waste pre-cutting device of hardware stamping die

Info

Publication number: CN111468612A
Application number: CN202010358916.XA
Authority: CN
Inventors: 徐益忠; 邢晓东; 练昌; 彭荣翔
Original assignee: Feidiao Electrical Appliances Group Co ltd
Current assignee: Feidiao Electrical Appliances Group Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-07-31

Abstract

The utility model provides a five metals stamping die's waste material is cutting device in advance, five metals stamping die includes the mould, the lower mould, the guide pillar, guide pin bushing and feed arrangement, five metals stamping die is last to be equipped with more than two stations along the feeding direction, the design has the waste material to cut the device in advance before the process of normal processing product, the waste material is cut the device in advance and is included P L C inductive head, the drift, the limiting plate, the set screw, oblique slider, the cylinder, P L C control system through the position and the shape of P L C inductive head response material area, P L C control system judges to have the waste material, and control the cylinder action in view of the above, the cylinder action then drives oblique slider and drives the drift action, the excision waste material, solved and caused irregular waste material to remain in the mould because of the material area is irregular, lead to the mould crush.

Description

Waste pre-cutting device of hardware stamping die

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a waste pre-cutting device for a hardware stamping die.

Background

The problems that often appear in the production process of the existing hardware stamping die are as follows: 1. the hardware stamping die is adjusted into a manual mode every time a material belt is replaced, the materials are fed, stamped and cleaned according to the working procedure 1, the materials are fed, stamped and cleaned according to the working procedure 2, the waste materials are fed, stamped and cleaned according to the working procedure N of … …, and the automatic mode can not be started until all the working procedures are completely finished and complete products come out; 2. the hardware stamping die is difficult to avoid the problems of die crush, punch breakage, knife edge breakage and the like caused by the fact that irregular waste materials are left in the die due to the fact that material belts are irregular in the production process.

Disclosure of Invention

The invention provides a waste pre-cutting device for a hardware stamping die, aiming at the problems.

The purpose of the invention can be realized by the following technical scheme that the waste pre-cutting device of the hardware stamping die comprises an upper die, a lower die, a guide pillar, a guide sleeve and a feeding device, more than two stations are arranged on the hardware stamping die along the feeding direction, the waste pre-cutting device comprises a P L C induction head, a punch, a limiting plate, a fixing screw, an inclined slide block, an air cylinder and a P L C control system, the P L C induction head, the punch, the inclined slide block and the air cylinder are arranged on the upper die and arranged on the first station, the P L C induction head is arranged in front of the punch in the feeding direction, a first inclined surface is arranged on the front side edge of the top surface of the punch, a limiting groove extending up and down is formed in one side surface of the punch, the limiting plate is fixed through the fixing screw and matched with the upper end and the lower end of the limiting groove of the punch to limit the up and down movement of the punch, the inclined slide block is arranged on the upper side of the punch, a second inclined surface and a plane which are arranged in front and back are arranged on the back side edge of the bottom surface of the inclined slide block, the second inclined slide block is connected with a bottom surface L of the cylinder, the inclined slide block, the front side of the inclined slide block is connected with a piston rod L, and a piston rod are connected with the inclined.

The P L C induction head is installed on the stripper plate of the upper die, the punch is installed in the upper backing plate, the upper clamping plate, the stopper plate and the stripper plate in a penetrating mode, the limiting plate is fixed on the upper clamping plate through fixing screws, the inclined sliding block is installed in the upper backing plate, and the air cylinder is installed on the front side of the upper backing plate.

Further, the lower die comprises a lower die base, a lower backing plate, a lower die plate and a buoyancy lifting material guiding pin, and the buoyancy lifting material guiding pin is arranged in front of the waste material pre-cutting device in the feeding direction.

Compared with the prior art, the waste pre-cutting device has the beneficial effects that the waste pre-cutting device is designed before the working procedure of normally processing products, the position and the shape of the material belt are sensed through the P L C sensing head, the P L C control system judges that waste exists, the air cylinder action is controlled according to the judgment, the air cylinder action drives the inclined sliding block to drive the punch to act, the waste is cut off, and the problems that the die is crushed, the punch is broken and the knife edge is broken due to the fact that irregular waste is left in the die due to the fact that the material belt is irregular are solved.

Drawings

Fig. 1 is a schematic structural view of the hardware stamping die of the present invention in an open state.

Fig. 2 is a schematic structural view of the hardware stamping die in a closed state.

Fig. 3 is a schematic view of the waste pre-cutting device of the present invention at rest.

Fig. 4 is a schematic view showing the structure of the waste material pre-cutting device according to the present invention when pre-cutting waste materials.

Fig. 5 is a schematic structural view of a punch and a slanting slider in the scrap pre-cutting apparatus of the present invention.

Fig. 6 is a schematic structural view of a processed conjunct two-three insert L pole insert product of the present invention.

Fig. 7 is a schematic structural diagram of a material tape designed for a conjoined two-three insert L pole insert product according to the present invention.

The components in the figures are labeled as follows:

1 feeding device

2 die shank

3 Upper die base

4 upper backing plate

5 Upper splint

6 backstop board

7 stripper plate

8 spring

9 lower die holder

10 lower backing plate

11 lower template

12-buoyancy lifting guide pin

13P L C inductive head

14 punch

1401 top surface

1402 first inclined plane

1403 limiting groove

15 limiting plate

16 set screw

17 inclined slide block

1701 second inclined plane

1702 plane

1703 bottom surface

18 air cylinder

19P L C control system

20, and (3) preparing the product.

Detailed Description

The following detailed description of the embodiments of the present invention will be given in conjunction with the accompanying drawings to make it clear to those skilled in the art how to practice the present invention. While the invention has been described in connection with preferred embodiments thereof, these embodiments are merely illustrative, and not restrictive, of the scope of the invention.

Referring to fig. 1, a scrap pre-cutting device for a hardware stamping die. In the following description, front means away from the feeding direction and rear means the feeding direction.

The hardware stamping die comprises an upper die, a lower die, a guide pillar, a guide sleeve and a feeding device 1. The upper die comprises a die handle 2, an upper die base 3, an upper base plate 4, an upper clamping plate 5, a stop plate 6, a stripper plate 7 and a spring 8, wherein the spring 8 is arranged in the upper die base 3, the upper base plate 4 and the upper clamping plate 5 in a penetrating manner, and two ends of the spring are respectively supported in the upper die base 3 and on the stop plate 6. The lower die comprises a lower die base 9, a lower cushion plate 10, a lower die plate 11 and a buoyancy lifting material guiding pin 12, wherein the buoyancy lifting material guiding pin 12 is arranged in the lower die base 9, the lower cushion plate 10 and the lower die plate 11 in a penetrating mode, and the head end of the buoyancy lifting material guiding pin is exposed out of the lower die plate 11. The upper die and the lower die are guided by the guide pillar and the guide sleeve. The feeding device 1 is arranged on the front side of the lower template 11. And more than two stations are arranged on the hardware stamping die along the feeding direction.

Referring to fig. 3 and 4, the waste pre-cutting device comprises a P L C induction head 13, a punch 14, a limit plate 15, a set screw 16, an inclined slide block 17, an air cylinder 18 and a P L C control system 19.

The P L C induction head 13, the punch 14, the inclined slide block 17 and the air cylinder 18 are arranged at a first station, the P L C induction head 13 is arranged on the stripper plate 7 and is arranged in front of the punch 14 in the feeding direction, the punch 14 is arranged in the upper backing plate 4, the upper clamping plate 5, the stopper plate 6 and the stripper plate 7 in a penetrating mode, referring to fig. 5, the front side edge of the top surface 1401 of the punch 14 is provided with a first inclined surface 1402, one side surface of the punch 14 is provided with a limiting groove 1403 extending up and down, the stopper plate 15 is fixed on the lower surface of the upper clamping plate 5 through a fixing screw 16, the stopper plate 15 is matched with the upper end and the lower end of the limiting groove 1403 to limit the punch 14 to move up and down, the inclined slide block 17 is arranged in the upper backing plate 4, the rear side edge of the bottom surface 1703 of the inclined slide block 17 is provided with a second inclined surface 1701 arranged back and forth and back, the second inclined surface 1701 is matched with the bottom surface 1703 of the inclined slide block 17, the plane 1702 is engaged with the rear side surface 1702 of the inclined slide block 17, the second inclined surface 6314 is matched with the top surface 1401 of the punch 14, the front side of the inclined slide block 18 is connected with the front side of the air cylinder 18, and is connected with the induction.

When hardware stamping die installs on punching machine, hardware stamping die's die holder 9 is fixed on punching machine's workstation, and hardware stamping die's die shank 2 is connected and locks with punching machine's movable slide block.

Referring to fig. 6, a product 20 to be processed is a conjoined two-three-plug L pole plug bush in the embodiment, referring to fig. 7, a scrap pre-cutting process and 25 subsequent formal processing processes are designed on a material belt for the conjoined two-three-plug L pole plug bush product 20, wherein the 25 processes sequentially comprise 1, pressing, 2, punching, pressing, 3, punching, 4, blank, 5, punching, 6, blank, 7, punching, 8, punching, 9, punching, 10, punching, 11, forming, 12, forming, 13, forming, 14, forming, 15, forming, 16, blank, 17, forming, 18, blank, 19, forming, 20, blank, 21, forming, 22, forming, 23, forming, 24, blank, 25 and punching and cutting the product 20.

When stamping, referring to fig. 1, when the movable slide block of the stamping machine slides to the highest point, the die opening stroke of the hardware stamping die is the largest, the feeding device feeds materials, the material strip moves backwards to the first station, the P L C sensing head 13 senses the position and the shape of the material strip and transmits information to the P L C control system 19, and the P L C control system 19 judges whether the material strip affects the process of the following station, generates waste materials or not, and whether the waste materials damage the die or not.

If the P L C control system 19 judges that no waste material is generated, the P L C control system 19 does not send a command to the air cylinder 18, the second inclined surface 1701 and the plane 1702 of the inclined slide block 17 are respectively contacted with the first inclined surface 1402 and the top surface 1401 of the punch 14, the air cylinder 18 is in a static state, the inclined slide block 17 is in a static state, the punch 14 does not act, see FIG. 3, when the movable slide block of the punching machine moves downwards, the upper die of the hardware punching die also moves downwards, 25 processes in the subsequent station also intervene, when the movable slide block of the punching machine slides to the lowest point, the hardware punching die is in a closed state, see FIG. 2, and 25 processes in the subsequent station are completed.

If the P L C control system 19 judges that waste materials are generated, the P L C control system 19 sends a command to the air cylinder 18, the air cylinder 18 pushes the inclined slide block 17 backwards through the piston rod to move backwards, the second inclined surface 1701 of the inclined slide block 17 acts on the first inclined surface 1402 of the punch 14 to enable the punch 14 to move downwards, when the inclined slide block 17 moves to a preset position, the bottom surface 1703 of the inclined slide block 17 acts on the top surface 1401 of the punch 14 to lock the punch 14, and as shown in figure 4, when the movable slide block of the punching machine moves downwards, the upper die of the hardware punching die also moves downwards, the punch 14 pre-cuts the material belt, 25 processes in the subsequent stations intervene, when the movable slide block of the punching machine slides to the lowest point, the hardware punching die is in a closed state, the waste materials are cut, and the 25 processes in the subsequent stations are completed.

It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are given by way of illustration of the invention and are not intended to limit the invention. In conclusion, the scope of the present invention shall include those alterations or substitutions and modifications which are obvious to those of ordinary skill in the art, and shall be subject to the appended claims.

Claims

1. A waste pre-cutting device of a hardware stamping die comprises an upper die, a lower die, a guide pillar, a guide sleeve and a feeding device, wherein more than two stations are arranged on the hardware stamping die along a feeding direction, and the waste pre-cutting device is characterized by comprising a P L C induction head, a punch, a limiting plate, a fixing screw, an inclined slider, an air cylinder and a P L C control system, wherein the P L C induction head, the punch, the inclined slider and the air cylinder are mounted on the upper die and arranged on a first station, the P L C induction head is arranged in front of the punch in the feeding direction, a first inclined surface is arranged on the front side edge of the top surface of the punch, a limiting groove extending up and down is formed in one side surface of the punch, the limiting plate is fixed through the fixing screw and matched with the upper end and the lower end of the limiting groove of the punch to limit the up and down movement of the punch, the inclined slider is arranged on the upper side of the punch, a second inclined surface and a plane which are arranged front and back are arranged on the rear side edge of the bottom surface of the inclined slider, the second inclined surface is connected with the bottom surface of the inclined slider, the inclined slider is connected with a piston rod of the inclined slider, the inclined slider and a piston rod is connected with the induction cylinder L, and connected with the inclined slider, and.

2. The waste pre-cutting device for the hardware stamping die as claimed in claim 1, wherein the upper die comprises a die handle, an upper die holder, an upper base plate, an upper clamping plate, a stop plate, a stripper plate and a spring, the P L C sensing head is mounted on the stripper plate of the upper die, the punch is mounted in the upper base plate, the upper clamping plate, the stop plate and the stripper plate in a penetrating manner, the limiting plate is fixed on the upper clamping plate through a fixing screw, the inclined slide block is mounted in the upper base plate, and the air cylinder is mounted on the front side of the upper base plate.

3. The waste pre-cutting device for the hardware stamping die as claimed in claim 1, wherein the lower die comprises a lower die base, a lower backing plate, a lower die plate and a buoyancy lifting guide pin, and the buoyancy lifting guide pin is arranged in front of the waste pre-cutting device in a feeding direction.