CN214078723U - Doffer of reverse-winding belt hasp type piston ring product - Google Patents

Doffer of reverse-winding belt hasp type piston ring product Download PDF

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Publication number
CN214078723U
CN214078723U CN202022678983.8U CN202022678983U CN214078723U CN 214078723 U CN214078723 U CN 214078723U CN 202022678983 U CN202022678983 U CN 202022678983U CN 214078723 U CN214078723 U CN 214078723U
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China
Prior art keywords
pressing block
piston ring
die
positioning
reverse
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Active
Application number
CN202022678983.8U
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Chinese (zh)
Inventor
崔泉源
赵骏贤
单亚民
王勇
邱倍良
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Zhejiang Sf Oilless Bearing Co ltd
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Zhejiang Sf Oilless Bearing Co ltd
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Priority to CN202022678983.8U priority Critical patent/CN214078723U/en
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Publication of CN214078723U publication Critical patent/CN214078723U/en
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Abstract

The utility model discloses a doffer of reverse-winding buckle type piston ring product. The device comprises an upper die and a lower die which are arranged on a die frame, and is characterized in that a guide chute with the height and width capable of enabling a strip material which is finished to be finely rolled, planed and chamfered in place to pass through is arranged in the lower die, a pressing block capable of moving laterally is arranged on the side face of the guide chute, an elastic device capable of enabling the pressing block to move outwards is connected to the pressing block, positioning holes in the vertical direction are formed in the pressing block, a positioning plate is fixed above the pressing block, a guide hole is formed in the positioning plate, when the guide hole is aligned with the positioning hole, the pressing block moves in the guide chute and just laterally presses the strip material in the guide chute, a lower knife hole for cutting off the strip material and having a stepped hasp fracture is formed below the guide chute, an upper knife head matched with the lower knife hole and a positioning rod matched with the guide hole are fixed on the upper die, and when the upper die moves downwards, the positioning rod firstly aligns the guide hole with the positioning rod.

Description

Doffer of reverse-winding belt hasp type piston ring product
Technical Field
The utility model relates to a production of the anti-type of rolling up self-lubricating axle sleeve especially relates to a take equipment of the higher piston ring product production of hasp interlocking required precision.
Background
The reverse-winding product with the hasp and higher interlocking precision, such as a piston ring, occupies a certain proportion in the self-lubricating shaft sleeve. At present, the production is carried out by adopting a chamfering process, strips with certain allowance in the width direction are subjected to edge rolling and shaping processing after being subjected to punching shearing and blanking on the periphery, and then the end surfaces and the chamfers are processed by a chamfering machine so as to ensure that the interlocking of hasps at two sides of a finished product does not borrow to meet the design requirement; such product processing technology is inefficient, secondly because the characteristic of self-lubricating material, the axle sleeve carries out cutting process after rolling up, can adhere a large amount of copper, iron fillings on the plastic layer of external surface in production and handling process, needs the clearance, and for many troubles of subsequent handling area, the quality of product also is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a doffer of anti-tape-winding hasp type piston ring product simple structure, manufacturing convenience, the precision is higher, long service life.
In order to meet the requirements, the technical scheme adopted by the blanking device for the reversely-coiled belt buckle type piston ring product is as follows: the device comprises an upper die and a lower die which are arranged on a die frame, and is characterized in that a guide chute with the height and width capable of enabling a strip material which is finished to be finely rolled, planed and chamfered in place to pass through is arranged in the lower die, a pressing block capable of moving laterally is arranged on the side face of the guide chute, an elastic device capable of enabling the pressing block to move outwards is connected to the pressing block, positioning holes in the vertical direction are formed in the pressing block, a positioning plate is fixed above the pressing block, a guide hole is formed in the positioning plate, when the guide hole is aligned with the positioning hole, the pressing block moves in the guide chute and just laterally presses the strip material in the guide chute, a lower knife hole for cutting off the strip material and having a stepped hasp fracture is formed below the guide chute, an upper knife head matched with the lower knife hole and a positioning rod matched with the guide hole are fixed on the upper die, and when the upper die moves downwards, the positioning rod firstly aligns the guide hole with the positioning rod.
The elastic device is characterized in that a compression spring is installed between the lower die and the pressing block, the compression spring is fixed through an adjusting bolt, the distance of the lateral outward movement of the pressing block is adjusted by an adjusting nut on the adjusting bolt, so that when the pressing block moves outward, the positioning rod can be inserted into the positioning hole smoothly, the lateral compression of the pressing block on the belt material is released, and the belt material can pass through smoothly.
The pressing block is n-shaped, two feet of the n-shaped pressing block are aligned to the material guide groove, and each foot is provided with an elastic device.
The two positioning holes are respectively arranged beside two legs of the pressing block.
The front end of the positioning rod or/and the positioning hole is/are provided with a chamfer or a radius or an inclined surface for guiding the positioning rod to be easily inserted into the positioning hole.
The rear end of the guide chute is provided with a feeding mechanism for feeding the belt material into the guide chute, and the feeding length is 2-3 mm of the circumferential length L of the piston ring, the width B of the hasp during unfolding and the process scrap edge required during cutting.
The feeding mechanism is a crank sliding block feeding mechanism.
According to the blanking device of the reverse-winding belt buckle type piston ring product designed by the scheme, before the piston ring blank is cut off, namely the belt material finishes the processing operations of finish rolling, edge planing and chamfering, the piston ring blank formed after the belt material is cut off can be directly used for rolling, rounding and shaping to manufacture the piston ring, the processing of the end face turning and chamfering is not needed, and the phenomenon that copper and scrap iron generated in the cutting processing are adhered to the surface of the piston ring is avoided. The utility model discloses a product quality who guarantees more easily to the chamfer of the edge planing of taking the material earlier stage to replace system back machine tooling of book has improved production efficiency greatly, has reduced manufacturing cost.
Drawings
FIG. 1 is a development of a piston ring with a snap;
FIG. 2 is a perspective view of a piston ring with a snap;
FIG. 3 is a front view of a blanking device for a reverse-winding buckle type piston ring product;
FIG. 4 is a left side view of the upper die of FIG. 3;
FIG. 5 is a top view of the lower die of FIG. 3;
fig. 6 is an enlarged sectional view taken along line a-a of the lower die of fig. 3.
In the figure: 1. an upper die; 2. a lower die; 3. Carrying out material carrying; 4. a material guide chute; 5. a compression block; 6. an elastic device; 7. Positioning holes; 8. positioning a plate; 9. a pilot hole; 10. a lower cutter hole; 11. an upper cutter head; 12. a positioning rod; 13. a compression spring; 14. adjusting the bolt; 15. adjusting the nut; 16. a foot; 17. a chamfer or radius or bevel; 18. a feeding mechanism; 19. a piston ring blank.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Fig. 3 to 6 are schematic structural views of a blanking device for a reverse-winding buckle type piston ring product. As shown in the figure, the device comprises an upper die 1 and a lower die 2 which are arranged on a die frame (not shown), a material guide groove 4 which has the height and the width which can lead a strip 3 which is finished to be processed with finish rolling, edge planing and chamfering in place to pass through is arranged in the lower die 2, a pressing block 5 capable of moving laterally is arranged on the side surface of the material guide groove 4, an elastic device 6 for enabling the pressing block 5 to move outwards is connected on the pressing block 5, a positioning hole 7 in the vertical direction is arranged on the pressing block 5, a positioning plate 8 is fixed above the pressing block 7, a pilot hole 9 is arranged on the positioning plate 8, when the pilot hole 9 is aligned with the positioning hole 7, the pressing block 5 moves in the guide chute 4 and presses the strip 3 in the guide chute 4 laterally, the lower part of the material guiding groove 4 is provided with a lower knife hole 10 which cuts off the strip material 3 and has a step-shaped hasp as shown in figure 1, an upper tool bit 11 matched with the lower tool hole 10 and a positioning rod 12 matched with the pilot hole 9 are fixed on the upper die 1. When the upper die 1 moves down, the positioning rod 12 enters the pilot hole 9 in advance to align the pilot hole 9 with the positioning hole 7. As shown in fig. 6, the elastic device 6 is provided with a compression spring 13 between the lower die 2 and the pressing block 5, the compression spring 13 is fixed by an adjusting bolt 14, and an adjusting nut 15 on the adjusting bolt 14 adjusts the distance of the lateral outward movement of the pressing block 5, so as to ensure that the positioning rod 12 can be smoothly inserted into the positioning hole 7 when the pressing block 5 moves outward, and the lateral pressing of the pressing block 5 on the belt 3 is released, so that the belt 3 can smoothly pass through. The pressing block 5 is n-shaped, two feet 16 of the n-shaped pressing block are aligned with the material guide groove 4, and each foot 16 is provided with an elastic device 6. Two positioning holes 7 are arranged beside two legs 16 of the pressing block 5. The front end of the positioning rod 12 or/and the opening of the positioning hole 7 are/is provided with a chamfer or radius or bevel 17 for guiding the positioning rod 12 to be easily inserted into the positioning hole 7. The rear end of the material guide groove 4 is provided with a feeding mechanism 18 for feeding the strip material 3 into the material guide groove 4, and the feeding length is 2-3 mm of the circumferential length L of the piston ring, the width B when the hasp is unfolded and the necessary process overlap during cutting. The feeding mechanism 18 is a crank block feeding mechanism.
The use method of the blanking device for the reverse-winding buckle type piston ring product comprises the following steps: the belt material 3 (no machining allowance is reserved) which is subjected to finish rolling, edge planing and chamfering in advance and is required to be rolled into the piston ring is led into the feeding mechanism 18 and the material guide groove 4, and the feeding length of the feeding mechanism 18 and the stroke of the upper die 1 are adjusted, so that the upper die 1 finishes one-time feeding in one stroke; when the upper die 1 descends, the positioning rod 12 is sequentially inserted into the pilot hole 9 and the positioning hole 7, so that the pilot hole 9 is aligned with the positioning hole 7, namely the pressing block 5 moves in the pilot groove 4 and just presses the belt material 3 in the lateral direction of the pilot groove 4, along with the descending of the upper die 1, the upper tool bit 11 contacts the belt material 3 and is matched with the lower tool hole 10 to complete the cutting of the belt material 3, a stepped buckle is formed at a fracture, and a piston ring blank 19 (unfolded) to be rolled is manufactured as shown in fig. 1. In the process, the feeding mechanism 18 completes the return stroke, when the upper die 1 moves upwards, the positioning rod 12 is separated from the positioning hole 7 and the pilot hole 9, the pressing block 5 moves outwards under the action of the elastic device 6, the pressing on the piston ring blank 19 is released, meanwhile, the feeding mechanism 18 sends the next strip 3 forwards into the material guide groove 4 and pushes the piston ring blank 19 forwards, and the next punching cycle operation on the strip 3 is started. The piston ring blank 19 is directly rolled, rounded and shaped to form the piston ring in the shape shown in figure 2.

Claims (7)

1. A blanking device for the reverse winding belt buckle type piston ring product is composed of upper and lower dies installed to die carrier, guide slot with height and width for the belt material after finish rolling, edge planing and chamfering, pressing block with elastic unit for moving said pressing block outwards, locating holes, locating plate with guide holes, upper and lower cutting holes for cutting off the belt material, upper and lower cutting heads, and locating rods, the positioning rod firstly aligns the pilot hole with the positioning rod.
2. The blanking device for the anti-winding buckle type piston ring product as claimed in claim 1, wherein the elastic device is formed by installing a compression spring between the lower die and the pressing block, the compression spring is fixed by an adjusting bolt, and the distance of lateral outward movement of the pressing block is adjusted by an adjusting nut on the adjusting bolt, so as to ensure that the positioning rod can be smoothly inserted into the positioning hole when the pressing block moves outward, and the lateral pressing of the pressing block on the belt material is released, so that the belt material can smoothly pass through.
3. The blanking device for the reverse winding buckle type piston ring product as claimed in claim 2, wherein said compression block is n-shaped, and two legs of the n-shaped compression block are aligned with the guiding chute, and each leg is provided with an elastic device.
4. The blanking device for the reverse-winding buckle type piston ring product as claimed in claim 2, wherein there are two positioning holes.
5. The blanking device for the reverse-winding belt buckle type piston ring product as claimed in claim 1, wherein the front end of the positioning rod or/and the positioning hole is formed with a chamfer or radius or bevel for guiding the positioning rod to be easily inserted into the positioning hole.
6. The blanking device for the reverse-winding belt buckle type piston ring product as claimed in claim 1, wherein the rear end of the material guiding groove is provided with a feeding mechanism for feeding the belt material into the material guiding groove, and the feeding length is 2-3 mm each time the circumference L of the piston ring is added with the width B of the buckle when the buckle is unfolded and the necessary process overlap is cut off.
7. The blanking device for the reverse-winding buckle type piston ring product as claimed in claim 6, wherein the feeding mechanism is a crank block feeding mechanism.
CN202022678983.8U 2020-11-17 2020-11-17 Doffer of reverse-winding belt hasp type piston ring product Active CN214078723U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022678983.8U CN214078723U (en) 2020-11-17 2020-11-17 Doffer of reverse-winding belt hasp type piston ring product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022678983.8U CN214078723U (en) 2020-11-17 2020-11-17 Doffer of reverse-winding belt hasp type piston ring product

Publications (1)

Publication Number Publication Date
CN214078723U true CN214078723U (en) 2021-08-31

Family

ID=77450906

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022678983.8U Active CN214078723U (en) 2020-11-17 2020-11-17 Doffer of reverse-winding belt hasp type piston ring product

Country Status (1)

Country Link
CN (1) CN214078723U (en)

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