CN112170642A

CN112170642A - Progressive die for producing small trays of swivel chairs

Info

Publication number: CN112170642A
Application number: CN202011071912.XA
Authority: CN
Inventors: 段国华
Original assignee: Hangzhou Tongben Mould Manufacturing Co ltd
Current assignee: Hangzhou Tongben Mould Manufacturing Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-01-05

Abstract

The invention discloses a progressive die for producing a small swivel chair tray, which belongs to the technical field of dies and comprises an upper die base and a lower die base, and is characterized in that: the upper surface of the lower die base is provided with a punching trimming part, a forming part, a flanging part, a punching flanging side hole part and a cutting part, a first pressing plate is arranged at the position of the upper die base corresponding to the punching trimming part, a second pressing plate is arranged at the position of the upper die base corresponding to the forming part, the flanging part, the punching flanging side hole part and the cutting part, a supporting rod is arranged at the upper part of the lower die base, and a cross beam is arranged at the top of the supporting rod.

Description

Progressive die for producing small trays of swivel chairs

Technical Field

The invention relates to the technical field of molds, in particular to a progressive die for producing a small tray of a swivel chair.

Background

The chair is a common furniture in daily life, and as the technical level is continuously improved, the chair also shows more and more varieties, the swivel chair is a common one of the swivel chairs, in order to make the structure simple, the base of the swivel chair usually only comprises a tray, a column, a foot tube, a rotating wheel and other structures, wherein, the tray comprises a large tray and a small tray, and is mainly used for connecting the chair seat and the column and supporting the chair seat, which requires that the structure and the shape of the large tray and the small tray not only meet the connection requirement, but also have good supporting effect, therefore, in the production process of the large tray and the small tray, the cutting, pressing and punching of a plurality of positions are required, a plurality of sets of dies are required in the traditional production process to complete all actions, the cost is too high, the work of a flitch transferred from the die of the front process to the die of the back process also needs to be completed manually by workers, the efficiency is low, the final finished product quality can be influenced, and based on the condition, the condition that the quality of the finished tray product is not high due to the use of a plurality of sets of dies can be avoided, higher production efficiency can be ensured, and the problem which needs to be solved by related technicians is more and more solved.

Disclosure of Invention

In order to solve the technical problem, the invention provides a progressive die for producing a small tray of a swivel chair.

The utility model provides a progressive die is used in production of little tray of swivel chair, includes upper die base, die holder, its characterized in that: the die holder upper surface sets up the portion of cutting edge, shaping portion, turn-ups portion, dashes to turn over side hole portion, cuts from the portion, the upper die base with the portion of cutting edge that punches a hole corresponds the position and sets up first clamp plate, the upper die base with shaping portion, turn-ups portion, dash to turn over side hole portion, cut from a corresponding position and set up the second clamp plate, die holder upper portion sets up branch, the branch top sets up the crossbeam.

Furthermore, a through hole penetrates through the surface of the first pressing plate, punching blocks are arranged at positions, corresponding to the through hole in the surface of the first pressing plate, of the lower portion of the upper die base, each punching block comprises a first punching block and a second punching block, a punching column is arranged on one side, far away from the second punching block, of each first punching block, and punching cones are arranged on one side, close to the second punching block, of each first punching block and on one side, far away from the first punching block, of each second punching block.

Furthermore, a hole flanging block is arranged on the upper surface of the hole flanging part, and the hole flanging block is in a circular truncated cone shape.

Further, dash and turn over side opening portion including dashing side hole portion, turning over side hole portion, dash side hole portion, turn over side hole portion middle part and all set up the tray, the tray both sides set up the stopper, the stopper is nearly tray one side sets up first ejector pad, first ejector pad is nearly tray one side sets up the second ejector pad, first ejector pad is nearly tray one side sets up the system hole pole, the system hole pole runs through the second ejector pad.

Furthermore, a first inclined wedge is arranged above the first pushing block, a second inclined wedge is arranged above the second pushing block, the bottoms of the first inclined wedge and the second inclined wedge are both of inclined surface structures, and the positions, corresponding to the first inclined wedge, of the first pushing block and the positions, corresponding to the second inclined wedge, of the second pushing block are both of inclined surface structures.

Furthermore, a limiting support column is arranged between the first inclined wedge and the second inclined wedge.

Furthermore, slots are symmetrically arranged at the upper part of the supporting block.

Furthermore, the middle position of the cutting part is provided with a limiting wedge, and one end of the cutting part is provided with a limiting rod.

The progressive die for producing the small swivel chair tray has the beneficial effects that:

1. the punching and trimming part, the forming part, the flanging part, the punching and flanging side hole part and the cutting part are sequentially arranged at the upper part of the lower die seat, and the punching and trimming, forming, punching, hole flanging, side hole punching, side hole flanging and cutting-off of the small swivel chair tray can be sequentially completed only by combining with an adaptive feeding device;

2. in the process of closing the upper die and the lower die, the actions of pushing the first push block by the first wedge and pushing the second push block by the second wedge are sequentially generated, so that the hole making rods for punching the side hole part and turning the side hole part sequentially complete the actions of punching the side hole and turning the side hole, and the structure is simple and reasonable;

3. branch, crossbeam, spacing support column have guaranteed the stability of compound die state well at last mould and lower mould compound die in-process, and first clamp plate, second clamp plate, spacing slide wedge, gag lever post have realized the location to the former flitch of course of working well, and the stability of course of working further promotes, and finished product quality further improves.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the present invention is not limited to the scope of the present invention.

FIG. 1 is a schematic structural diagram (I) of a continuous die for producing a small tray of a swivel chair according to the present invention;

FIG. 2 is a schematic structural view of a progressive die for producing a small tray of a swivel chair according to the present invention;

FIG. 3 is a schematic structural view (III) of a progressive die for producing a small tray of a swivel chair according to the present invention;

FIG. 4 is a schematic structural view (IV) of a progressive die for producing a small tray of a swivel chair according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is an enlarged view of a portion of FIG. 2 at B;

FIG. 7 is an enlarged view of a portion of FIG. 2 at C;

fig. 8 is a partial enlarged view of fig. 4 at D.

The punching die comprises an upper die holder 1, a lower die holder 2, a support rod 3, a cross beam 4, a second pressing plate 5, a punching and trimming part 6, a forming part 7, a flanging part 8, a flanging side hole part 9, a cutting-off part 10, a first pressing plate 11, a first wedge 12, a second wedge 13, a limiting supporting column 14, a flanging block 15, a second pushing block 16, a first pushing block 17, a supporting block 18, a slot 19, a limiting block 20, a limiting wedge 21, a limiting rod 22, a first punching block 23, a punching column 24, a punching cone 25 and a second punching block 26.

Detailed Description

For the sake of clarity, the present invention will be further described with reference to the drawings of fig. 1 to 8.

The utility model provides a progressive die is used in production of little tray of swivel chair, includes upper die base 1, die holder 2, its characterized in that: 2 upper surfaces of die holder set up the trimming portion 6 that punches a hole, shaping portion 7, hole flanging portion 8, dash turn over lateral hole portion 9, cut apart 10, 1 of upper die holder with the trimming portion 6 that punches a hole corresponds the position and sets up first clamp plate 11, 1 of upper die holder with shaping portion 7, hole flanging portion 8, dash turn over lateral hole portion 9, cut apart 10 corresponding position and set up

second clamp plate

5, 2 upper portions of die holder set up

branch

3, 3 tops of branch set up crossbeam 4.

Furthermore, a through hole is formed in the surface of the first press plate 11 in a penetrating manner, a punch block is arranged at a position, corresponding to the through hole in the surface of the first press plate 11, of the lower portion of the upper die holder 1, the punch block comprises a first punch block 23 and a second punch block 26, a punch post 24 is arranged on one side, far away from the second punch block 26, of the first punch block 23, and a punch cone 25 is arranged on one side, close to the second punch block 26, of the first punch block 23 and one side, far away from the first punch block 23, of the second punch block 26.

Further, the upper surface of the hole flanging part 8 is provided with a hole flanging block 15, and the shape of the hole flanging block 15 is a circular truncated cone.

Further, the punching side hole portion 9 comprises a punching side hole portion and a flanging side hole portion, the middle portions of the punching side hole portion and the flanging side hole portion are respectively provided with a support block 18, two sides of the support block 18 are provided with a limiting block 20, one side of the support block 18, which is close to the limiting block 20, is provided with a first push block 17, one side of the support block 18, which is close to the first push block 17, is provided with a second push block 16, one side of the support block 18, which is close to the first push block 17, is provided with a hole making rod, and the hole making rod penetrates through the second push block 16.

Further, a first inclined wedge 12 is arranged above the first pushing block 17, a second inclined wedge 13 is arranged above the second pushing block 16, the bottoms of the first inclined wedge 12 and the second inclined wedge 13 are both of inclined surface structures, and the corresponding positions of the first pushing block 17 and the first inclined wedge 12 and the corresponding positions of the second pushing block 16 and the second inclined wedge 13 are both of inclined surface structures.

Further, a limit support column 14 is arranged between the first inclined wedge 12 and the second inclined wedge 13.

Furthermore, slots 19 are symmetrically arranged on the upper part of the supporting block 18.

Furthermore, a limiting wedge 21 is arranged in the middle of the cutting-off part 10, and a limiting rod 22 is arranged at one end of the cutting-off part 10.

The working principle of the progressive die for producing the small swivel chair tray is as follows: fixing a lower die base 2 at an installation position, placing an upper die base 1 right above the lower die base 2, connecting one end of a raw material plate with a feeding device, placing the raw material plate between the upper die base 1 and the lower die base 2, vertically moving the upper die base 1 downwards to enable the upper die base 1 to be completely attached to the lower die base 2, completing punching by a first punching block 23, a punching column 24 and a punching cone 25, separating the upper die base 1 from the lower die base 2, pushing the raw material plate forwards by the feeding device, re-assembling the upper die base 1 and the lower die base 2, completing further punching by a second punching block 26 and a punching cone 25, repeating the steps of separating the upper die base 1 from the lower die base 2, pushing the raw material plate and assembling the upper die base 1 and the lower die base 2, sequentially completing punching, trimming, forming, hole flanging, side hole punching, side hole flanging and side hole flanging, and cutting, wherein in the processes of punching the side hole and side hole flanging, an inclined plane structure at the bottom of a first inclined wedge 12 is in sliding contact with an inclined plane, promote first ejector pad 17 and remove to the direction of tray 18, second slide wedge 13 bottom inclined plane structure and the corresponding inclined plane structure sliding contact of second ejector pad 16 promote second ejector pad 16 and system hole pole and remove to the direction of tray 18, can accomplish through system hole pole and dash side opening, turn over the side opening, first clamp plate 11, second clamp plate 5, spacing slide wedge 21, gag lever post 22 make raw materials board remain stable, cut off portion 10 and cut off the little tray of swivel chair that the terminal processing of raw materials board was accomplished, can accomplish a duty cycle.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a progressive die is used in production of little tray of swivel chair, includes upper die base (1), die holder (2), its characterized in that: die holder (2) upper surface sets up the portion of cutting edge (6), shaping portion (7), hole of turning round (8), the side hole portion of turning round (9), cuts from portion (10), upper die base (1) with the portion of cutting edge (6) that punches a hole corresponds the position and sets up first clamp plate (11), upper die base (1) with shaping portion (7), hole of turning round (8), the side hole portion of turning round (9), cuts from portion (10) and correspond the position and set up second clamp plate (5), die holder (2) upper portion sets up branch (3), branch (3) top sets up crossbeam (4).

2. The progressive die for producing the small trays of the swivel chairs as claimed in claim 1, wherein a through hole is formed in the surface of the first pressing plate (11), a punch block is arranged at a position corresponding to the through hole in the surface of the first pressing plate (11) at the lower part of the upper die holder (1), the punch block comprises a first punch block (23) and a second punch block (26), a punching column (24) is arranged on one side, far away from the second punch block (26), of the first punch block (23), and a punching cone (25) is arranged on one side, close to the second punch block (26), of the second punch block (26) and far away from the first punch block (23).

3. The progressive die for the production of small chair trays according to claim 1, wherein the upper surface of the flanging part (8) is provided with a flanging block (15), and the shape of the flanging block (15) is a truncated cone.

4. The progressive die for producing the small trays of the swivel chairs according to claim 1, wherein the punching side hole parts (9) comprise a punching side hole part and a flanging side hole part, supporting blocks (18) are arranged in the middles of the punching side hole part and the flanging side hole parts, limiting blocks (20) are arranged on two sides of each supporting block (18), a first pushing block (17) is arranged on one side, close to the supporting blocks (18), of each limiting block (20), a second pushing block (16) is arranged on one side, close to the supporting blocks (18), of each first pushing block (17), a hole forming rod is arranged on one side, close to the supporting blocks (18), of each first pushing block (17), and the hole forming rods penetrate through the second pushing blocks (16).

5. The progressive die for producing the small trays of the swivel chair as claimed in claim 4, wherein a first inclined wedge (12) is arranged above the first pushing block (17), a second inclined wedge (13) is arranged above the second pushing block (16), the bottoms of the first inclined wedge (12) and the second inclined wedge (13) are both of an inclined surface structure, and the positions of the first pushing block (17) corresponding to the first inclined wedge (12) and the positions of the second pushing block (16) corresponding to the second inclined wedge (13) are both of an inclined surface structure.

6. A progressive die for the production of small trays for swivel chairs according to claim 5, characterised in that between said first cam (12) and said second cam (13) is provided a limit post (14).

7. A continuous mould for the production of small trays for swivel chairs according to claim 4, characterised in that the upper part of the said support block (18) is symmetrically provided with slots (19).

8. The progressive die for producing the small tray of the swivel chair as claimed in claim 1, wherein a limiting wedge (21) is arranged in the middle of the cut-off part (10), and a limiting rod (22) is arranged at one end of the cut-off part (10).