CN220239804U

CN220239804U - Stretching and cutting die

Info

Publication number: CN220239804U
Application number: CN202321413213.8U
Authority: CN
Inventors: 杨秋贵
Original assignee: Dongguan Yulin Mould Co ltd
Current assignee: Dongguan Yulin Mould Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-26
Anticipated expiration: 2033-06-05

Abstract

The utility model relates to a stretching and cutting die, which comprises an upper die assembly and a lower die assembly which are relatively opened and closed; the upper die assembly comprises a stretching female die, the lower end surface of the stretching female die is provided with a first molding surface which is concave inwards, and a trimming blade block is embedded and detached on one side of the stretching female die adjacent to a die feed inlet; a punch groove is formed in one side, far away from the stretching female die, of the trimming knife edge block; the punch groove is recessed inwards along the lower end face of the stretching female die; the lower die assembly comprises a stretching male die and a trimming punch; the stretching male die is correspondingly arranged below the stretching female die, and the upper end surface of the stretching male die is provided with a second molding surface protruding outwards; the trimming punch is correspondingly arranged below the punch groove, and a cutting area is formed between the side wall of the trimming punch and the side wall of the trimming knife edge block. According to the stretching and cutting die, the feeding mode is changed from single plate feeding to coil feeding, and the coil can be cut off while stretch forming is carried out, so that continuous production is realized and production efficiency is improved without manually transferring and purchasing multiple sets of dies in the past.

Description

Stretching and cutting die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a stretching and cutting die.

Background

The metal back plate inside the television back cover serves as an internal support on which a plurality of structural bodies, such as fitting holes 1 for connection with accessories, receiving slots 2 for placing circuit boards, and edge flanges 3 for connection with the television back cover, are provided. The thickness of a portion of the construction is required to be thinner than the remaining area of the back sheet, and thus a stretching process is required in producing such a metal back sheet. The product is usually produced in a sheet shape by a client, the die is only used for stretch forming, after the stretch forming, the die is transferred to other stations for processing other structural bodies, and when the product leaves a factory later, an additional trimming die is used for trimming, so that the required production personnel are more, and the production efficiency is low. Thus, improvements are needed.

Disclosure of Invention

Based on this, the present utility model provides a stretching and cutting die.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

a stretch and cut die comprising:

an upper die assembly and a lower die assembly which are opened and closed relatively;

the upper die assembly comprises a stretching female die, the lower end face of the stretching female die is provided with a first forming surface which is concave inwards, and a trimming blade block is embedded and detached on one side of the stretching female die adjacent to a die feeding port; a punch groove is formed in one side, away from the stretching female die, of the trimming knife edge block; the punch groove is recessed inwards along the lower end face of the stretching female die;

the lower die assembly comprises a stretching male die and a trimming punch; the stretching male die is correspondingly arranged below the stretching female die, and a second molding surface protruding outwards is arranged on the upper end face of the stretching male die; the trimming punch is correspondingly arranged below the punch groove, and a cutting area is formed between the side wall of the trimming punch and the side wall of the trimming knife edge block.

The stretching and cutting die is provided with the stretching female die and the stretching male die, and the positions, adjacent to the feed inlets, of the stretching female die and the stretching male die are correspondingly provided with the trimming knife edge blocks and the trimming punches, the feeding mode is changed from single plate feeding to coil feeding, the coil can be cut while stretching forming, a plurality of sets of dies do not need to be manually transported and arranged like the prior art, the die is suitable for continuous production, and the production efficiency is improved

Further, the upper die assembly further comprises an upper die seat, an upper connecting plate and an upper die plate which are sequentially arranged from top to bottom; the stretching female die is arranged at the lower end of the upper die plate.

Further, an assembly notch is formed in one side, adjacent to the die feed inlet, of the stretching female die; an upward concave assembly chute is arranged at the included angle between the assembly notch and the stretching female die; the upper end face of the trimming blade block is provided with an assembling sliding block which is matched with the assembling sliding groove. An assembly notch is formed in one side, adjacent to a die feed inlet, of the stretching female die; an upward concave assembly chute is arranged at the included angle between the assembly notch and the stretching female die; the upper end face of the trimming blade block is provided with an assembling sliding block matched with the assembling sliding groove, and when the trimming blade block is installed, the trimming blade block can be slidably embedded into the stretching female die through the mutual matching of the assembling sliding block and the assembling sliding groove, so that the position is accurate, and the assembling is convenient.

Further, the lower die assembly further comprises a lower supporting plate, a lower die plate, a lower connecting plate and a lower die holder which are sequentially arranged from top to bottom; the stretching male die is arranged in the lower supporting plate.

Further, the trimming punch comprises a mounting seat and a cutter head; the mounting seat is embedded in the lower die plate and is positioned at one side of the lower supporting plate far away from the stretching male die; the tool bit set up in the upper end of mount pad, its one side that keeps away from the bottom plate is equipped with the cooperation inclined plane. The matching inclined plane is arranged to improve the matching compatibility between the trimming punch and the upper die base during die assembly, and die assembly interference is avoided.

Drawings

FIG. 1 is a schematic top view of a back plate for producing a back plate according to the prior art;

FIG. 2 is a schematic cross-sectional view of a back plate for manufacturing a back plate according to the prior art;

FIG. 3 is a schematic diagram of the overall structure of the present utility model;

fig. 4 is an enlarged schematic view of a partial structure at a in fig. 3.

100. An upper die assembly; 110. stretching the master mold; 111. a first molding surface; 112. a punch groove; 113. an assembly notch; 114. assembling a chute; 120. trimming a knife edge block; 121. assembling a sliding block; 130. an upper die holder; 140. an upper connecting plate; 150. an upper template;

200. a lower die assembly; 210. stretching the male die; 211. a second molding surface; 220. trimming punch; 221. a mounting base; 222. a cutter head; 223. matching with the inclined plane; 230. a lower support plate; 240. a lower template; 250. a lower connecting plate; 260. and (5) a lower die holder.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 to 4, a stretching and cutting die includes an upper die assembly 100 and a lower die assembly 200 that are relatively opened and closed;

the upper die assembly 100 comprises an upper die holder 130, an upper connecting plate 140, an upper die plate 150 and a stretching female die 110 which are sequentially arranged from top to bottom; the lower end surface of the stretching female die 110 is provided with a first molding surface 111 which is concave inwards, and a trimming blade block 120 is embedded and detachably connected on one side of the stretching female die 110 adjacent to a die feed inlet; specifically, an assembly notch 113 is arranged on one side of the stretching female die 110 adjacent to the die feed inlet; an upward concave assembly chute 114 is arranged at the included angle between the assembly notch 113 and the stretching female die 110; the upper end surface of the trimming blade block 120 is provided with an assembling sliding block 121 matched with the assembling sliding groove 114, and when the trimming blade block is installed, the trimming blade block 120 can be slidably embedded into the stretching female die 110 through the mutual matching of the assembling sliding block 121 and the assembling sliding groove 114, so that the position is accurate, and the screw is conveniently locked; a punch groove 112 is arranged on one side of the trimming blade block 120 away from the stretching female die 110; the punch groove 112 is recessed inward along the lower end surface of the stretching female die 110, and the punch groove 112 is provided for the engagement avoidance of the trimming punch 220 during die assembly.

The lower die assembly 200 includes a stretching male die 210 and a trimming punch 220; in this embodiment, the lower die holder 260 further includes a lower support plate 230, a lower die plate 240, a lower connecting plate 250 and a lower die holder 260, which are sequentially disposed from top to bottom; the stretching male mold 210 is correspondingly disposed below the stretching female mold 110 and is located in the lower supporting plate 230; the upper end surface of the stretching male die 210 is provided with a second molding surface 211 protruding outwards; the trimming punch 220 is correspondingly arranged below the punch recess 112, and a cutting area is formed between the side wall of the trimming punch and the side wall of the trimming blade block 120; specifically, the trimming punch 220 includes a mounting base 221 and a cutter head 222; the mounting seat 221 is embedded in the lower die plate 240, and is located at a side of the lower support plate 230 away from the stretching male die 210; the tool bit 222 is disposed at the upper end of the mounting base 221, and a mating inclined surface 223 is disposed at a side of the tool bit away from the lower support plate 230, so that the mating compatibility between the trimming punch 220 and the upper die holder 130 during die assembly is improved by providing the mating inclined surface 223, and die assembly interference is avoided.

Working principle:

the stretching and cutting die adopts a coil feeding mode, can perform continuous stamping process, and continuously feeds coil from left to right in the figure. In operation, the upper die assembly 100 moves downward closer to the lower die assembly 200, the stretching female die 110 presses the web against the stretching male die 210, and the web is extruded under pressure to a shape formed between the first molding surface 111 and the second molding surface 211. At the same time as the stretching is completed, the trimming blade block 120 and the trimming punch 220 also mutually hinge the designated cutting line 4 of the coil stock, and the cutting is completed. Finally, the die is opened, the lower supporting plate 230 is sprung upwards, the plate which is cut by stretching is sprung up for blanking, and the plate is taken out by other mechanisms, and the subsequent unprocessed coil stock is continuously fed into the die for processing.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A stretch and cut die, comprising:

2. The stretching and cutting die as recited in claim 1, wherein said upper die assembly further comprises an upper die base, an upper connecting plate, and an upper die plate arranged in this order from top to bottom; the stretching female die is arranged at the lower end of the upper die plate.

3. A stretching and cutting die as set forth in claim 1, wherein said stretching female die is provided with an assembly notch on a side thereof adjacent to said die feed port; an upward concave assembly chute is arranged at the included angle between the assembly notch and the stretching female die; the upper end face of the trimming blade block is provided with an assembling sliding block which is matched with the assembling sliding groove.

4. The stretching and cutting die as recited in claim 1, wherein said lower die assembly further comprises a lower plate, a lower die plate, a lower connecting plate and a lower die holder arranged in this order from top to bottom; the stretching male die is arranged in the lower supporting plate.

5. A drawing and cutting die as defined in claim 4 wherein said trimming punch includes a mounting base and a cutter head; the mounting seat is embedded in the lower die plate and is positioned at one side of the lower supporting plate far away from the stretching male die; the tool bit set up in the upper end of mount pad, its one side that keeps away from the bottom plate is equipped with the cooperation inclined plane.