CN110961536A

CN110961536A - Fire extinguisher head compound die

Info

Publication number: CN110961536A
Application number: CN201911340494.7A
Authority: CN
Inventors: 雷世俊
Original assignee: Guangdong Lesso Security Technology Co ltd
Current assignee: Guangdong Lesso Security Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-04-07

Abstract

The invention relates to the field of fire extinguishers, in particular to a fire extinguisher head composite die which comprises an upper die, a lower die, a forming device and a discharging device, wherein the forming device comprises a convex-concave die arranged on the upper die, an upper material returning block arranged in the concave die in the convex-concave die, a blanking concave die arranged on the lower die and corresponding to the convex die in the convex-concave die, and a forming male arranged in an inner cavity of the blanking concave die; the discharging device comprises a pushing piece arranged on the upper die, a jacking piece arranged on the lower die and a discharging plate arranged at the upper end of the blanking female die; a feeding groove is arranged on the end surface of the discharging plate close to one end of the blanking female die along the horizontal direction, and a discharging notch is arranged on one side of the feeding groove; the ejection piece comprises a lower material returning block arranged between the blanking female die and the forming male die and an ejection mechanism used for pushing the lower material returning block; the pushing piece comprises a pushing mechanism used for pushing the upper material returning block upwards. The fire extinguisher end socket compound die provided by the invention can realize the production of a fire extinguisher end socket by a single punch die in a continuous operation mode, and effectively improves the production efficiency of the fire extinguisher end socket.

Description

Fire extinguisher head compound die

Technical Field

The invention relates to the field of fire extinguishers, in particular to a fire extinguisher seal head compound die.

Background

The cylinder body of the fire extinguisher consists of an upper end enclosure, a cylinder body and a lower end enclosure. At present, a cylinder body is manufactured by rolling a steel plate and then performing straight seam welding, an upper end enclosure and a lower end enclosure are formed by stamping, and finally, three components are welded in a surrounding mode to form a cylinder product. The end socket of the fire extinguisher cylinder body is in a spherical bowl shape, and the product requires that the end surface of the bowl opening is parallel and level, and cracks are not allowed on the whole body of the spherical surface. At present, a blanking and stretching die is mostly used for production, and belongs to a single-punching die, and the punching die often has several defects: firstly, an upper discharging mechanism and a lower discharging mechanism are required to be arranged in a stretching die cavity of the die, and an outer discharging mechanism is required to be arranged at the position where scrap materials are lapped after blanking, so that the overall dimension is large during die manufacturing, the die assembly is high, the die is heavy, and the processing cost is high; secondly, the strip-divided plate materials are used for production, and a plate shearing process is added virtually, so that the labor cost is increased; thirdly, the end socket product is heavier, the conventional mode of blowing and feeding cannot be adopted, the end socket product needs to be taken out manually during stamping, the operation of workers is dangerous, time and labor are consumed, and the production efficiency is low.

Disclosure of Invention

In order to effectively solve the problem of low production efficiency of the fire extinguisher cylinder head, the invention aims to provide the fire extinguisher head compound die which can realize the production of the fire extinguisher head by a single punch die in a continuous operation mode and effectively improve the production efficiency of the fire extinguisher head.

In order to solve the technical problems, the invention adopts the technical scheme that:

the fire extinguisher head compound die comprises an upper die, a lower die, a forming device and a discharging device, wherein the forming device comprises a punch-die arranged on the upper die, an upper material returning block arranged in a die in the punch-die, a blanking die arranged on the lower die and corresponding to a punch in the punch-die, and a forming male arranged in an inner cavity of the blanking die; the discharging device comprises a pushing piece arranged on the upper die, a jacking piece arranged on the lower die and a discharging plate arranged at the upper end of the blanking female die; a feeding groove is arranged on the end face, close to one end of the female die, of the discharging plate along the horizontal direction, and a discharging notch is formed in one side of the feeding groove; the ejection piece comprises a lower material returning block arranged between the blanking female die and the forming male die and an ejection mechanism used for pushing the lower material returning block; the pushing piece comprises a pushing mechanism used for pushing the upper material returning block downwards.

According to the fire extinguisher head compound die, the strip-shaped material belt enters and passes through the feeding groove and then is inserted between the blanking female die and the discharging plate, then the male die and the female die are driven by the upper die to press downwards and contact the material belt, then the male die and the female die continuously descend, and the material belt is sheared by matching with the blanking female die to form a round material sheet. And in the descending process, the upper material returning block continuously presses the sheared round material piece, at the moment, the round material piece is wrapped on the forming male die and stretched to enter the inner cavity of the male die and the female die, the upper material returning block upwards jacks back until all the raw material pieces enter the inner cavity of the male die and the drawing of the product is finished. And then the upper die moves upwards to reset, the processed end socket product is ejected out through the pushing piece and the ejecting piece, the material belt is fed into a step pitch through the conveying equipment, and the end socket product moves together in a hole formed by punching the material belt along the movement direction of the material belt and is separated from the discharging notch. The continuous and automatic production of the fire extinguisher end socket product can be realized by repeating the previous steps.

Furthermore, the upper end surface of the forming male is a spherical convex surface, and the lower end surface of the upper withdrawing block is a spherical concave surface matched with the upper end surface of the forming male.

Further, the upper die comprises a die handle, an upper die base, an upper padding plate and an upper fixing plate which are sequentially connected from top to bottom. The die handle, the upper die base, the upper backing plate and the upper fixing plate are fixed through fastening parts. The die handle and the upper die base are used for fixing the die on the punching machine; the upper backing plate is used for distributing and bearing the reaction force of the punch and the die in stamping; the fixing plate is used for fixing the male die and the female die on the upper die.

Further, the lower die comprises a lower die holder, a lower fixing plate and a lower lining plate which are sequentially connected from bottom to top, and the blanking female die is fixedly arranged at the top of the lower lining plate. The lower die holder, the lower fixing plate and the lower lining plate are fixed through fastening parts. The lower die base is used for fixing the lower die on the working table surface of the punch; the lower fixing plate is used for fixing the forming male; the lower liner plate is used for connecting the lower fixing plate and the blanking female die and providing a working space for the top piece.

Furthermore, the upper die is provided with a guide pillar, and the lower die is provided with a guide sleeve matched with the guide pillar. The guide pillar and the guide sleeve are used as guide parts, so that the accuracy of the positions of the upper die and the lower die during die assembly is guaranteed.

Further, the pushing-out mechanism comprises a first spring and a striking rod; the first spring is arranged between the upper die holder and the upper material returning block; the striking rod is arranged on the die handle and the upper die base, and the lower end of the striking rod is abutted to the upper material returning block. The first spring rebounds after the stamping is finished to enable the upper material returning block to move downwards and push out the processed end socket, so that the end socket is stably reserved on the surface of the lower material returning block; the beating rod plays an auxiliary role, prevents the first spring from being compressed and fatigued to cause abnormal material returning and damages the condition of the die during high-speed operation.

Furthermore, the ejection mechanism comprises an ejector rod arranged around the forming male die and an elastic ejection assembly arranged at the bottom of the ejector rod. The elastic ejection assembly is connected with the lower material returning block through the ejector rod, and the lower material returning block moves downwards to enable the material sheet to smoothly enter the male die and the female die before a product is formed, so that the product is prevented from wrinkling, the bowl opening is flat, and the elastic ejection assembly is compressed downwards; after the product is formed, the elastic ejection assembly rebounds to enable the lower material returning block to ascend and enable the product to be ejected away from the forming die, so that the phenomenon that the service life of the die is influenced due to abnormal material returning of the lower die is avoided.

Furthermore, the discharging device further comprises a lifting component arranged at the discharging gap, wherein the lifting component comprises a supporting block fixedly arranged on the lower die, a material moving hopper used for enabling the seal head to slide down and a material supporting rod used for supporting the plate material.

Furthermore, the material supporting rod is arranged in parallel with the feeding groove, and the position of the highest point of the material supporting rod is higher than the position of the upper end face of the blanking female die in the vertical direction. The material strap passes through from holding in the palm material pole top, enables the material strap and slightly lifts up, makes the material strap form when advancing to the slight bending tendency that lifts up of holding in the palm material pole direction, and the head product passes through from the below of holding in the palm the material pole, because holds in the palm the material pole and lifts up more to do benefit to the separation of product, and the product is along walking hopper swift current slope, the working space of roll-off mould.

Furthermore, a feeder and a collector which run synchronously are respectively arranged at two ends of the feeding groove, and the collector is arranged at one side close to the material lifting component. The material area is sent into to the feeder distance, and the waste material area is collected to the receipts glassware, on guaranteeing that the upper and lower mould is unloaded normal basis, makes the material area stride ground promote the shaping product to leave mould workspace fast in step to realize the continuous production of single punching die utensil.

Compared with the prior art, the invention has the beneficial effects that:

1. the fire extinguisher seal head compound die provided by the invention discharges the peripheral scrap by adopting a hard material returning mode, and simplifies an elastic discharging mode in the prior art, so that the die is small and exquisite, and the cost can be effectively reduced.

2. The upper die and the lower die of the fire extinguisher head composite die provided by the invention are respectively provided with the discharging device, so that the stability and safety of product forming and discharging are ensured, and the formed product is pushed to rapidly leave the working space of the die by using the synchronous feeder and the step pitch of the material collector, so that the continuous and automatic operation of a single-punch die is realized.

3. The fire extinguisher head compound die provided by the invention is provided with the material lifting component, so that the material belt is fed in a slightly inclined upward mode, a stable product pushing space is provided, and the stability of long-time operation of the die is improved.

Drawings

Fig. 1 is a schematic structural view of a fire extinguisher head compound die in the invention.

Fig. 2 is an exploded view of the fire extinguisher head compound die of the present invention.

Fig. 3 is a sectional view of the fire extinguisher head composite die in the state of opening the die in the main view direction.

Fig. 4 is a schematic operation diagram of the fire extinguisher head compound die of the present invention.

Fig. 5 is a schematic structural view of a stripper plate and a blanking female die in the invention.

Fig. 6 is a schematic structural diagram of the end socket product of the present invention.

Fig. 7 is a schematic diagram of the stock belt layout of the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example 1

Fig. 1 to 7 show a first embodiment of a fire extinguisher head composite mold according to the present invention.

As shown in fig. 1 to 5, the fire extinguisher head compound die comprises an upper die, a lower die, a forming device and a discharging device, wherein the forming device comprises a punch-die 8 arranged on the upper die, an upper material returning block 7 arranged in the punch-die 8, a blanking die 12 arranged on the lower die and corresponding to the punch-die 8, and a forming male 16 arranged in a hole of the blanking die 12; the discharging device comprises a pushing piece arranged on the upper die, a jacking piece arranged on the lower die and a discharging plate 11 arranged at the upper end of the blanking female die 12; a feeding groove is arranged on the end surface of the discharging plate 11 close to one end of the female die along the horizontal direction, and a discharging notch is arranged on one side of the feeding groove; the ejection piece comprises a lower material returning block 15 arranged between the blanking female die 12 and the forming male die 16 and an ejection mechanism used for pushing the lower material returning block 15; the pushing piece comprises a pushing mechanism used for pushing the upper material returning block upwards.

The upper end surface of the forming male 16 is a spherical convex surface, and the lower end surface of the upper material returning block 7 is a spherical concave surface matched with the upper end surface of the forming male 16. The inner cavity of the punch-die 8 and the inner cavity of the blanking die 12 are both circular, and the punch-die 8 and the blanking die 12 are matched with each other to punch the sheet material into round sheet material.

The upper die comprises a die handle 2, an upper die seat 4, an upper backing plate 6 and an upper fixing plate 10 which are sequentially connected from top to bottom. The die shank 2, the upper die base 4, the upper backing plate 6 and the upper fixing plate 10 are fixed by fastening parts. The die handle 2 and the upper die base 4 are used for fixing the die on a punching machine; the upper backing plate 6 is used for distributing and bearing the reaction force of the punch-die 8 in stamping; the fixing plate is used for fixing the punch-die 8 on the upper die.

The lower die comprises a lower die base 19, a lower fixing plate 18 and a lower lining plate 14 which are sequentially connected from bottom to top, and the blanking female die 12 is fixedly arranged at the top of the lower lining plate 14. The lower die holder 19, the lower fixing plate 18 and the lower lining plate 14 are fixed through fastening parts. The lower die holder 19 is used for fixing the lower die on the working table of the punch; a lower fixing plate 18 for fixing the forming male 16; the lower liner plate 14 is used for connecting the lower fixing plate 18 and the blanking concave die 12 and providing a working space for the top piece.

The upper die is provided with a guide pillar 9, and the lower die is provided with a guide sleeve 13 matched with the guide pillar 9. The guide post 9 and the guide sleeve 13 are used as guide parts, so that the accuracy of the positions of an upper die and a lower die during die assembly is ensured. Each plate of the lower die is provided with a guide hole corresponding to the guide post 9, and in the embodiment, the guide sleeve 13 is sleeved and fixed on the blanking female die 12.

The push-out mechanism comprises a first spring 5 and a striking rod 1. The first spring 5 is arranged between the upper die base 4 and the upper material returning block 7, the upper die base 4 is provided with a plug screw 3 matched with the first spring 5, the upper backing plate 6 is provided with a through hole matched with the first spring 5 in position, one end of the first spring 5 is abutted against the plug screw 3, and the other end of the first spring presses the upper material returning block 7. The knock-off rod 1 is arranged on the die shank 2 and the upper die base 4, and the lower end of the knock-off rod is abutted against the upper material returning block 7. The first spring 5 rebounds after the stamping is finished to enable the upper material returning block 7 to move downwards and push out the processed end socket 27, so that the end socket 27 is stably left on the surface of the lower material returning block 15; the beating rod 1 plays an auxiliary role, and prevents the first spring 5 from being abnormal in material returning due to compression fatigue and damaging a die in high-speed operation.

The ejection mechanism comprises an ejector rod 17 arranged around the forming male 16 and an elastic ejection assembly arranged at the bottom of the ejector rod 17. The elastic ejection assembly comprises a screw 20, a second spring 21, a supporting plate 22, a top plate 30, a nut 23 and an ejector rod 17. The supporting plate 21 is fixed below the lower die holder 19 on the working table of the punch press, the screw 21 is fixed on the supporting plate 22 through the nut 23, the top of the screw 21 is in threaded connection with the lower die holder 19, and the top plate 30 is sleeved on the screw 21. The second spring 21 is fitted around the screw 21, and has an upper end abutting against the top plate 30 and a lower end abutting against the support plate 22. The ejector rod 17 is arranged around the forming male 16, a through hole matched with the ejector rod 17 is formed in the lower die base 19, and the ejector rod 17 penetrates through the through hole to abut against the top plate 30. When the lower material pushing block 15 is pushed downwards, the top rod 17 is pushed to drive the top plate 30 to be pushed downwards together. The elastic ejection assembly is connected with the lower material returning block 15 through the ejector rod 17, before the product is formed, the lower material returning block 15 moves downwards to enable the material sheet to smoothly enter an inner cavity of the male and female dies 8, so that the product is prevented from wrinkling, the bowl mouth is flat, and the elastic ejection assembly is compressed downwards at the moment; after the product is formed, the elastic ejection assembly rebounds, so that the lower material returning block 15 rises, the product is ejected away from the forming die 16, and the phenomenon that the service life of the die is influenced due to abnormal unloading of the lower die is avoided.

The discharging device further comprises a lifting member arranged at the discharging notch, and the lifting member comprises a supporting block 25 fixedly arranged on the lower die, a material moving hopper 26 used for enabling the end socket to slide down, and a material supporting rod 24 used for supporting the plate material. The stripping bar 24 and the skip 26 are provided on the supporting block 25. One side of the female die 12 close to the discharging gap is provided with an inclined opening, and the end surface of the inclined opening is matched and connected with the end surface of the material feeding hopper 26. The formed product can be slid down the chute in the direction of the skip 26.

The material supporting rod 24 is arranged in parallel with the feeding groove, and the position of the highest point of the material supporting rod 24 is higher than the position of the upper end surface of the blanking female die 12 in the vertical direction. The material belt passes through the material supporting rod 24 from the upper part, so that the material belt can be slightly lifted, the material belt has a slight bending and lifting trend towards the direction of the material supporting rod 24 when the material belt advances, the end socket product passes through the lower part of the material supporting rod 24, and the material supporting rod 24 is lifted to be more beneficial to the separation of the product, so that the product slides along the material walking hopper 26 and slides out of the working space of the die. Wherein, the position of the material supporting rod 24 relative to the supporting block 25 can be adjusted, and the lifting degree of the material belt can be changed by adjusting the position of the material supporting rod 24.

As shown in FIG. 5, the two ends of the feed chute are respectively provided with a feeder 28 and a collector 29 which are synchronously operated, and the collector 29 is arranged at one side close to the material lifting member. The feeder 28 feeds the strip at a fixed distance and the collector 29 collects the strip of waste material, moving it in the direction B and the upper die punches in the direction a. On the basis of ensuring the normal unloading of the upper die and the lower die, the material belt pushes the formed product to quickly leave the working space of the die step by step, thereby realizing the continuous production of the single-punch die.

As shown in fig. 6 to 7, fig. 6 is a schematic structural diagram of the end socket product, and fig. 7 is a schematic strip stock layout diagram. After the strip passes through the die, a process hole is formed, the end socket product stops in the strip stamping process hole after the ejector and the push piece are matched to withdraw from the convex-concave die 8 and the concave die 12, and the strip runs at a step pitch to push the end socket product to be separated from the discharging notch.

The fire extinguisher seal head compound die provided by the invention discharges the peripheral scrap by adopting a hard material returning mode, and simplifies an elastic discharging mode in the prior art, so that the die is small and exquisite, and the cost can be effectively reduced. The upper die and the lower die are respectively provided with a discharging device, so that the stability and safety of product forming and discharging are ensured, and the formed product is pushed to quickly leave the working space of the die by the steps of a synchronous feeder 28 and a synchronous collector 29, so that the continuous automatic operation of the single-punch die is realized. The material strap is walked the material with the mode that slightly inclines upwards, provides stable product and pushes away material space, has increased the stability of mould long-time operation. The invention has good application prospect and is suitable for popularization and application.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fire extinguisher head compound die comprises an upper die, a lower die, a forming device and a discharging device, and is characterized in that the forming device comprises a punch-die (8) arranged on the upper die, an upper material returning block (7) arranged in a die in the punch-die (8), a blanking die (12) arranged on the lower die and corresponding to the punch-die in the punch-die (8), and a forming male die (16) arranged in an inner cavity of the blanking die (12); the discharging device comprises a pushing piece arranged on the upper die, a jacking piece arranged on the lower die and a discharging plate (11) arranged at the upper end of the blanking female die (12); a feeding groove is arranged on the end face, close to one end of the blanking female die (12), of the discharging plate (11) along the horizontal direction, and a discharging notch is formed in one side of the feeding groove; the ejector comprises a lower stripper block (15) arranged between the blanking female die (12) and the forming male die (16) and an ejection mechanism used for pushing the lower stripper block (15); the pushing piece comprises a pushing mechanism used for pushing the upper material returning block downwards.

2. A fire extinguisher head compound die according to claim 1, characterized in that the upper end surface of the forming male (16) is a spherical convex surface, and the lower end surface of the upper withdrawing block (7) is a spherical concave surface matched with the upper end surface of the forming male (16).

3. A fire extinguisher head compound die as claimed in claim 1, wherein the upper die comprises a die handle (2), an upper die base (4), an upper backing plate (6) and an upper fixing plate (10) which are connected in sequence from top to bottom.

4. A fire extinguisher head compound die according to claim 1, wherein the lower die comprises a lower die seat (19), a lower fixing plate (18) and a lower lining plate (14) which are connected in sequence from bottom to top, and the blanking female die (12) is fixedly arranged at the top of the lower lining plate (14).

5. A fire extinguisher head compound die according to claim 1, characterized in that the upper die is provided with a guide post (9) and the lower die is provided with a guide sleeve (13) matching with the guide post (9).

6. A fire extinguisher head compound die according to claim 3, characterized in that the push-out mechanism comprises a first spring (5) and a striking rod (1); the first spring (5) is arranged between the upper die holder (4) and the upper stripper block (7); the striking rod (1) is arranged on the die handle (2) and the upper die base (4), and the lower end of the striking rod is abutted against the upper material withdrawing block (7).

7. A fire extinguisher head compound die according to claim 4, characterized in that the ejection mechanism comprises an ejector rod (17) arranged around the forming male die (16) and an elastic ejection assembly arranged at the bottom of the ejector rod (17).

8. A fire extinguisher head compound die according to claim 1, characterized in that the discharging device further comprises a lifting member arranged at the discharging gap, and the lifting member comprises a supporting block (25) fixedly arranged on the lower die, a material feeding hopper (26) used for sliding the head down and a material supporting rod (24) used for supporting the material belt.

9. A fire extinguisher head compound die according to claim 8, characterized in that the material supporting rod (24) is arranged in parallel with the feeding groove, and the highest point of the material supporting rod (24) is higher than the upper end surface of the blanking concave die (12) in the vertical direction.

10. A fire extinguisher head compound die according to any one of claims 1 to 9, characterized in that both ends of the feed chute are respectively provided with a feeder (28) and a collector (29) which operate synchronously, and the collector (29) is arranged at one side close to the material lifting member.