Mould for ejection and demoulding of inclined top

Abstract

The mold comprises a front mold plate and a rear mold plate, a front mold core is arranged at the lower end of the front mold plate, a rear mold core is arranged at the upper end of the rear mold plate, a sprue bush is installed in the middle of the front mold plate, the lower end of the sprue bush is inserted into the middle of the front mold core, a cinder ladle is arranged in the front mold core in a surrounding mode, and the pitched roof is arranged on the rear mold core. Inclined blocks are formed at the upper end of the pitched roof and distributed on the outer edge of the cinder ladle in a surrounding mode. According to the mold for ejection demolding of the pitched roof, the pitched roof slides on the rear mold plate to drive the inclined block to move in the inclined direction, the function of reverse buckle demolding is achieved, an existing ejector pin forming mode is replaced, it is guaranteed that under the condition of contact in the mold closing process, the lower end of the pitched roof can further have the guiding function, and meanwhile the stroke of reverse buckle of the pitched roof is limited; and the safety of demolding is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of molds, and in particular to a mold for ejection and demolding by a slanted ejector. Background Technology

[0002] Ejector pins are commonly found in existing molds. During the demolding process, the upward force of the ejector pins is used to push the product out of the mold. However, the presence of ejector pins is limited, and for different batches of products, ejector pins may damage the products. Moreover, vertical ejector pins are not convenient to use for products with inclined surfaces or products that require tilting during molding. Utility Model Content

[0003] One objective of this invention is to provide a mold for ejection and demolding by means of an inclined ejector, which restricts product forming by means of an inclined ejector, and during the demolding process, the inclined block is driven by the movement of the inclined ejector to remove the product from the mold.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A mold for ejection by a sloping ejector includes a front mold plate and a rear mold plate. A front mold core is provided at the lower end of the front mold plate, and a rear mold core is provided at the upper end of the rear mold plate. A sprue sleeve is installed in the middle of the front mold plate, and the lower end of the sprue sleeve is inserted into the middle of the front mold core. A slag bag is arranged around the inside of the front mold core. A sloping ejector is provided on the rear mold core, and a sloping block is formed at the upper end of the sloping ejector. The sloping block is distributed around the outer edge of the slag bag.

[0006] As a preferred technical solution, a front plate is provided above the front template, a rear plate is provided below the rear template, and a green column is connected between the front plate and the rear plate, with the green column located on the outside of the front template and the rear template.

[0007] As a preferred technical solution, square irons are connected to both sides of the lower part of the rear template, and a base plate is connected to the square irons. A pin panel and a pin base plate are connected between the two square irons. A locking screw is fixed on the pin base plate, and the locking screw passes through the pin panel and is connected to the rear template.

[0008] As a preferred technical solution, the ejector plate is provided with a plurality of ejector pins and support heads, and the upper end of the ejector pin passes through the rear template and is connected to the slag bag.

[0009] As a preferred technical solution, water channels are provided on both the front template and the rear template. A water ring is provided in the middle of the front template, and the water ring is located outside the sprue sleeve. A flow divider cone is provided inside the sprue sleeve, and the flow divider cone, the water ring, and the water channels are connected.

[0010] As a preferred technical solution, a limit block is fixed at the lower end of the rear template, and a pin support block is installed at the lower end of the base plate.

[0011] As a preferred technical solution, a screw moving groove is provided in the rear template, and a slanted screw is installed in the screw moving groove. The slanted screw is locked at the lower end of the slanted screw.

[0012] As a preferred technical solution, a guide post is fixed on the front template and a guide sleeve is fixed on the rear template, with the guide post inserted into the guide sleeve.

[0013] The beneficial effects of this utility model are as follows: It provides a mold for ejecting and demolding with a slanted ejector. In this mold, the slanted ejector slides on the rear template, causing the slant block to move in an slanted direction, which plays the role of back-clamping demolding. It replaces the existing ejector pin molding method. While ensuring contact during the mold closing process, the lower end of the slanted ejector can also play a guiding role, while limiting the stroke of the slanted ejector back-clamping, thus ensuring the safety of demolding. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of a mold for ejection and demolding using a slanted ejector, as described in the embodiment.

[0016] Figure 2 This is a structural diagram of the combined front and rear templates described in the embodiment;

[0017] Figure 3 This is a diagram showing the internal structure of the front and rear templates as described in the embodiment;

[0018] Figure 4 This is a first internal structure diagram of the front template described in the embodiment;

[0019] Figure 5 This is a second internal structure diagram of the front template described in the embodiment.

[0020] Figures 1 to 5 middle:

[0021] 1. Front mold plate; 2. Rear mold plate; 3. Front mold core; 4. Rear mold core; 5. Sprue bushing; 6. Slag bag; 7. Angled ejector; 8. Angled block; 9. Front machine plate; 10. Rear machine plate; 11. Green column; 12. Square iron; 13. Base plate; 14. Ejector plate; 15. Ejector base plate; 16. Locking screw; 17. Ejector pin; 18. Support head; 19. Water channel; 20. Water ring; 21. Diverter cone; 22. Limit block; 23. Ejector pin support block; 24. Angled ejector screw; 25. Guide post; 26. Guide sleeve. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 5 As shown in this embodiment, a mold for ejection by a slanted ejector includes a front mold plate 1 and a rear mold plate 2. A front mold core 3 is provided at the lower end of the front mold plate 1, and a rear mold core 4 is provided at the upper end of the rear mold plate 2. A sprue sleeve 5 is installed in the middle of the front mold plate 1, and the lower end of the sprue sleeve 5 is inserted into the middle of the front mold core 3. A slag bag 6 is arranged around the inside of the front mold core 3. A slanted ejector 7 is provided on the rear mold core 4, and a slant block 8 is formed at the upper end of the slanted ejector 7. The slant block 8 is distributed around the outer edge of the slag bag 6.

[0024] In the mold-closed state, the rear mold plate 2 drives the rear mold core 4 to move upward, and the inclined ejector 7 moves upward with the inclined block 8. The plane on the inclined block 8 connects with the front mold core 3 connected to the front mold plate 1, which serves to close the mold. In the mold-open state, the rear mold plate 2 moves downward, and the inclined ejector 7 moves in an inclined direction, which serves to remove the mold by backing.

[0025] A front platen 9 is provided above the front platen 1, and a rear platen 10 is provided below the rear platen 2. A green column 11 connects the front platen 9 and the rear platen 10. The green column 11 is located on the outside of the front platen 1 and the rear platen 2. The entire mold is placed in the equipment for injection molding with the front platen 9 and the rear platen 10 in place. The distance between the front platen 9 and the rear platen 10 is adjusted by the green column 11 to meet the processing requirements of the front platen 1 and the rear platen 2.

[0026] Square iron plates 12 are connected to both sides of the lower part of the rear template 2. A base plate 13 is connected to the square iron plates 12. An ejector plate 14 and an ejector base plate 15 are connected between the two square iron plates 12. A locking screw 16 is fixed on the ejector base plate 15. The locking screw 16 passes through the ejector plate 14 and is connected to the rear template 2. Several ejector pins 17 and support heads 18 are distributed on the ejector plate 14. The upper end of the ejector pin 17 passes through the rear template 2 and is connected to the slag bag 6. The position and movement of the rear template 2 are supported by the square iron plates 12, the base plate 13, the ejector plate 14, and the ejector base plate 15. The support head 18 restricts the position of the rear template 2 to ensure that the force is not uneven during the opening and closing of the mold.

[0027] Water channels 19 are provided on both the front mold plate 1 and the rear mold plate 2. A water ring 20 is provided in the middle of the front mold plate 1. The water ring 20 is located outside the sprue sleeve 5. A flow divider cone 21 is provided inside the sprue sleeve 5. The flow divider cone 21, the water ring 20 and the water channel 19 are connected to each other, so as to water cool the mold and extend the service life of the mold.

[0028] A limit block 22 is fixed at the lower end of the rear template 2, and a pin support block 23 is installed at the lower end of the base plate 13. A screw moving groove is provided inside the rear template 2, and an inclined screw 24 is installed in the screw moving groove. The inclined screw 24 is locked at the lower end of the inclined ejector 7. A guide post 25 is fixed on the front template 1, and a guide sleeve 26 is fixed on the rear template 2. The guide post 25 is inserted into the guide sleeve 26. Under the guidance and restriction of the screw moving groove, the inclined screw 24 drives the inclined ejector 7 to perform a reverse buckling within the ejection stroke control, so that the inclined ejector 7 will not be ejected without restriction.

[0029] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A mold for ejection and demolding with a slanted ejector, characterized in that, The device includes a front mold plate and a rear mold plate. The lower end of the front mold plate is provided with a front mold core, and the upper end of the rear mold plate is provided with a rear mold core. A sprue sleeve is installed in the middle of the front mold plate, and the lower end of the sprue sleeve is inserted into the middle of the front mold core. A slag bag is arranged around the inside of the front mold core. An inclined top is provided on the rear mold core, and an inclined block is formed at the upper end of the inclined top. The inclined block is distributed around the outer edge of the slag bag.

2. The mold for ejection and demolding by a slanted ejector as described in claim 1, characterized in that, A front panel is provided above the front template, and a rear panel is provided below the rear template. A green column connects the front panel and the rear panel, and the green column is located on the outside of the front template and the rear template.

3. The mold for ejection and demolding by a slanted ejector as described in claim 1, characterized in that, Square iron plates are connected to both sides of the lower part of the rear template. A base plate is connected to the square iron plates. A pin panel and a pin base plate are connected between the two square iron plates. A locking screw is fixed on the pin base plate. The locking screw passes through the pin panel and is connected to the rear template.

4. The mold for ejection and demolding by a slanted ejector as described in claim 3, characterized in that, The ejector plate has several ejector pins and support heads distributed on it. The upper end of the ejector pin passes through the rear template and is connected to the slag bag.

5. The mold for ejection and demolding by a slanted ejector as described in claim 1, characterized in that, Water channels are provided on both the front template and the rear template. A water ring is provided in the middle of the front template. The water ring is located outside the sprue sleeve. A flow divider cone is provided inside the sprue sleeve. The flow divider cone, the water ring, and the water channels are connected.

6. The mold for ejection and demolding by a slanted ejector as described in claim 3, characterized in that, A limit block is fixed at the lower end of the rear template, and a pin support block is installed at the lower end of the base plate.

7. The mold for ejection and demolding by a slanted ejector as described in claim 1, characterized in that, The rear template is provided with a screw moving groove, and a slanted screw is installed in the screw moving groove. The slanted screw is locked at the lower end of the slanted screw.

8. The mold for ejection and demolding by a slanted ejector as described in claim 1, characterized in that, A guide post is fixed on the front template, and a guide sleeve is fixed on the rear template. The guide post is inserted into the guide sleeve.

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