CN108527517A - Mould external decoration blanking mechanism - Google Patents

Abstract

The invention discloses a kind of blanking apparatus of mould external decoration.It includes upper and lower bearing plate, stripper, punch retainer, slider connecting plate, die shank, hydraulic cylinder, punching round punch, punch retainer, guide sleeve, blanking punch, concave template, the rectangular punch-pin of punching, buffer unit.In blanking process, film is transported among designed mold by production line, i.e. among concave, convex template, hydraulic cylinder is started to work after contraposition, and punch-pin moves down and press membrane, after the stress that film is born reaches shearing strength, film will crack respectively at the cutting edge of punch-pin and cavity plate, as punch-pin continues to push, finally make required pad pasting and diaphragm overall separation, to realize that punching obtains required pad pasting and removes the purpose of waste material.Mould external decoration blanking mechanism production efficiency is high, and manufacturing cost is low, can effectively improve the yields of product, and the foreground of fine development is possessed in the following processing manufacturing industry.

Description

Out-of-mold decoration punching mechanism

technical field

The invention designs an out-of-mold decoration punching mechanism, which is suitable for the punching mechanism of the out-of-mold decoration of products with complex structure, high precision requirements and exquisite appearance.

Background technique

In recent years, out-of-mold decorative film technology has become a relatively mature film decoration technology born in the modernization process. It has been widely used in the processing of products with complex curved surfaces, such as the outer surface decoration of door shells, washing machines, toys, and computers, etc. Wait. However, the existing out-of-mold decoration punching devices in the industry often have various defects, such as low service life, low yield, and difficulty in meeting product requirements for precision and so on. Therefore, in terms of out-of-mold decoration punching technology, our country has a lot of room for improvement and broader application prospects.

Contents of the invention

In order to overcome the defects of the punching mechanism used in the industry, the present invention proposes a product decoration punching device that can well meet the requirements of complex structure, high processing precision and good use effect.

The technical solution adopted in the present invention includes: upper and lower bearing plates, unloading plate, punch fixing plate, slider connecting plate, mold handle, hydraulic cylinder, punching circular punch, punch fixing plate, guide sleeve, drop Material punch, die plate, punching square punch, buffer device. The concave, convex and blanking punches used can be designed according to the needs of different products. During the processing, when the film is transferred to the punching mechanism designed in the present invention, the large pressure load output by the hydraulic cylinder will push the slider connecting plate to move, thereby driving the downward movement of the convex plate and the unloading plate, and finally Press the film tightly between the discharge plate and the concave plate, and then with the punch continuing to press down in different processes, the punching and punching operations are completed successively to form the film required by the product.

Description of drawings

Fig. 1 is a schematic diagram of the structure principle of the present invention.

Fig. 2 is a left view of the structure of the present invention.

Detailed ways

As shown in Fig. 1 and Fig. 2, the present invention includes: lower bearing plate (1), hexagonal bolt M24 (2), flat gasket (3), countersunk screw M22 (4), unloading plate (5), spring (6), screw M16 (7), upper mold base (8), fastening screw M16 (9), slider connecting plate (10), mold handle (11), upper bearing plate (12), hydraulic cylinder (13 ), hexagon bolt M22 (14), hexagon bolt M24 (15), flat gasket (16), hexagon bolt M22 (17), positioning pin (18), punching circular punch (19), punch backing plate (20), punch fixed plate (21), guide sleeve (22), blanking punch (23), concave template (24), punching square punch (25).

The working principle of the present invention is as follows:

When the invention is applied in a production line, the conveyor belt in the production line transports the film to the punching and punching position between the unloading plate (5) and the concave template (24), and stops at a fixed time, then the punching mechanism starts, and the hydraulic cylinder (13) is compressed, and the pressure load provided when the hydraulic cylinder (13) is pressed down will push the slider connecting plate (10) to move downward, while the upper die base (8), spring (6), and unloading plate (5) Regular linkage will also be carried out at the same time. When the unloading plate (5) is compressed to contact with the concave template (24), the unloading plate (24) will slowly compress the film under the action of the spring force, and the gas below the film will , air bubbles, etc. are discharged. In the process of continuing to press down, the punching circular punch (19) and the punching square punch (25) will be in contact with the film. When the stress on the film reaches the shear strength, the film is punched The cutting die punches out the required design holes to complete the punching process of the film.

After the punching process is completed, the push rod of the hydraulic cylinder (13) is pulled up, driving the slider connecting plate (10) and the upper mold base (8) to move upwards simultaneously, and before the spring (6) returns to its original state, the spring (6) The compression force will always make the discharge plate (5) closely contact with the concave die (24) and press the film, while the punching circular punch (19) and the punching square punch (25) will gradually move away from the film, thereby avoiding The friction force generated between the mold and the film when it is pulled up rapidly damages the film, and then the spring (6) returns to its original state and pulls the unloading plate (5) upwards, and finally the punching mechanism returns to the state before starting.

Then the conveyor belt will continue to move forward, and the punched film will be transferred to the blanking punching position, and the punching mechanism will start again. During the same compression process, the blanking punch (23) will be in contact with the film and continue to press down. , the blanking punch (23) blanks out the complete piece of the film for the needs of subsequent processing.

This system can replace the blanking die at any time according to different die needs, which greatly improves the processing efficiency. The buffer spring device involved in the system can not only buffer the stress of the device when the template is compressed, prolong the service life, but also make the film fit slowly, avoiding the generation of air bubbles and wrinkles, thus punching out a high-quality Precision and aesthetics of the film.

Claims (4)

1. what the present invention designed is a kind of mould external decoration blanking mechanism, overall structure includes：Lower bearing plate (1), hex bolts M24 (2), flat shim (3), sunk screw M22 (4), stripper (5), spring (6), screw M16 (7), upper die holder (8), fastening spiral shell Follow closely M16 (9), slider connecting plate (10), die shank (11), upper bearing plate (12), hydraulic cylinder (13), hex bolts M22 (14), hexagonal Bolt M24 (15), flat shim (16), hex bolts M22 (17), shop bolt (18), punching round punch (19), convex mould pad (20), punch retainer (21), guide sleeve (22), blanking punch (23), concave template (24), the rectangular punch-pin of punching (25).

2. being connect by die shank (11) between upper die holder (8) and slider connecting plate (10), upper bearing plate (12) and hydraulic cylinder (13) It is connected by hex bolts M22 (14)；Slider connecting plate and hydraulic pressure are completed using variable pump-hydraulic cylinder type volume speed-modulating loop The raising and lowering of cylinder push rod moves；By hydraulic cylinder (13) provide pressure load make slider connecting plate (10), die shank (11), Upper die holder (8), concave template (24) carry out regular linkage, to realize film first in punching round punch (19) and punching side Membrane pores are punched under the pushing force effect of shape punch-pin (25), then realize that film is fallen under the pushing force effect of blanking die (23) Material, is finally completed blanking process.

3. a kind of mould external decoration blanking mechanism according to claim 1, it is characterised in that：In hydraulic cylinder (13) and stripper (5) during fast linked, stripper (5) will generate greater impact when being contacted with concave template (24), therefore in screw M16 (7) Spring (6) is installed to play the role of damping reduction of speed in outside, and in stripper (5) bonding processes, film can be with The power that spring (6) applies slowly is bonded, and the air bubble under film is driven away, and under so that film is avoided in compression process The fold that pressure is excessive and generates effectively reduces film spoilage.

4. a kind of mould external decoration blanking mechanism according to claim 1, it is characterised in that：In spring (6) compression process, Punch retainer (21) will bear that, from the gradual increased impact force of spring (6), punch retainer can be caused when used for a long time (21) it is damaged with upper die holder (8) contact position, therefore installation convex mould pad (20) therebetween, effectively reduces the shadow of impact force It rings.