CN217968210U

CN217968210U - Straight ejector belt inclined ejector mold stripping structure

Info

Publication number: CN217968210U
Application number: CN202221717606.3U
Authority: CN
Inventors: 张建松
Original assignee: Shanghai Tianhai Electronic Co ltd
Current assignee: Shanghai Tianhai Electronic Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-06
Anticipated expiration: 2032-07-05

Abstract

The application discloses a straight-ejection and inclined-ejection mold structure which is used for injection molding of a product with a tip part far away from a main body part and an inverted buckle structure at the tip part, and comprises a straight-ejection assembly and an inclined-ejection assembly, wherein the straight-ejection assembly comprises a straight ejection rod and a straight ejection block, and the shape of the straight ejection block is matched with that of an upper mold core or a lower mold core to form a molding cavity for molding the main body part of the product; the inclined ejector assembly comprises an inclined ejector rod and an inclined ejector block, and the shape of the inclined ejector block is matched with that of the upper mold core or the lower mold core to form a forming cavity for forming a tip part of a product and an inverted buckle structure; an avoidance space for avoiding the horizontal motion of the inclined ejector block is arranged between the straight ejector block and the inclined ejector block. This application has avoided the motion of straight top, oblique top demolding to interfere through the integrated configuration of straight top and oblique top, and simple structure is reasonable, and whole application is ingenious, has improved the unsafe factor of conventional oblique top, has realized automatic production, has improved production efficiency greatly.

Description

Straight ejector belt inclined ejector mold stripping structure

Technical Field

The utility model relates to a straight top area pushes up demolding structure to one side belongs to injection mold technical field.

Background

With the increasing development of plastic industry, plastic products are continuously expanded and widely applied in various industries, and the structures of the products are more and more complex. The precision fit and the dimensional stability of the die have higher requirements. Particularly, the product has special functions and has special requirements and unexpected shapes. There is a greater breakthrough in structure to meet the design requirements.

With the present excellent pursuit of quality and the advance of social science and technology, the application of plastic products in various fields is diversified, the modeling of the products is more complicated, and meanwhile, the plastic products also have typical parts with special structures.

Fig. 1 shows a special-shaped structure, that is, a product has a product main body portion a and a tip portion B far away from the product main body portion a, the tip portion B has an inverted buckle structure shown in the drawing, in the conventional inverted buckle structure injection molding process, an inclined top core pulling structure is often used for the injection molding process of the inverted buckle structure, for the special-shaped structure shown in fig. 1, if the inclined top core pulling structure is adopted, a molding cavity for injection molding the inverted buckle structure at the tip portion B is formed by matching the shape of the right side surface of an inclined top block with a lower mold core, and the inclined top structure also needs to take over the function of ejecting the product, that is, the inclined top block also needs to be capable of contacting the main body portion a to eject the product, in this case, the inclined top block is too large, the inclined top block does not have enough sliding back stroke, and the product cannot be ejected out due to movement interference when being ejected out of the mold.

On the other hand, need cooling after the completion of moulding plastics, need follow the oblique ejector pin and introduce the water route to the oblique top, but in current structure, the bottom of oblique ejector pin usually need be connected with the thimble board, leads to the water route to lack the arrangement space, causes the cooling inconvenient.

SUMMERY OF THE UTILITY MODEL

The present application aims to solve the problems existing in the prior art.

In order to achieve the above object, the present application provides a straight-ejecting inclined-ejecting mold structure for injection molding a product having a tip portion far away from a main body portion and an inverted-buckle structure at the tip portion, including a straight-ejecting assembly and an inclined-ejecting assembly, where the straight-ejecting assembly includes a straight-ejecting rod and a straight-ejecting block, and the shape of the straight-ejecting block matches with that of an upper mold core or a lower mold core to form a molding cavity for molding the main body portion of the product; the inclined ejector assembly comprises an inclined ejector rod and an inclined ejector block, and the shape of the inclined ejector block is matched with that of the upper mold core or the lower mold core to form a forming cavity for forming a tip part of a product and an inverted buckle structure; an avoidance space for avoiding the horizontal motion of the inclined ejector block is arranged between the straight ejector block and the inclined ejector block.

Preferably, a straight ejector rod fixing nut is sleeved on the straight ejector rod and is connected with a straight ejector rod pressing block, and the straight ejector rod pressing block is connected with an ejector plate for driving the straight ejector rod to move; the water inlet and the water outlet are formed in the end face of the bottom end of the straight ejector rod, a water path is formed in the straight ejector rod, and the water path is communicated to the straight ejector block and used for dissipating heat of the straight ejector block.

Preferably, the straight ejector rod is further sleeved with a straight ejector guide sleeve for motion guiding, and the straight ejector guide sleeve is connected with the plate B.

Preferably, the number of the straight-ejecting guide sleeves is two, and the two straight-ejecting guide sleeves are connected into a whole through the straight-ejecting guide sleeve supporting sleeve.

Preferably, an inclined ejector rod fixing nut is sleeved on the inclined ejector rod and connected with an inclined ejector rod sliding piece, the inclined ejector rod sliding piece comprises a connecting block and a sliding block, a horizontal sliding groove is formed in the connecting block, the sliding block is arranged in the sliding groove, the connecting block is connected with the inclined ejector rod fixing nut, and the sliding block is connected with an ejector plate used for driving the inclined ejector rod to move; the inclined ejector rod is also sleeved with an inclined ejector guide sleeve for motion guidance, the inclined ejector guide sleeve is arranged in an inclined manner, and the inclined ejector guide sleeve is connected with the plate B; the water inlet and outlet are formed in the end face of the bottom of the inclined ejector rod, a water channel is formed in the inclined ejector rod, and the water channel is communicated to the inclined ejector block and used for dissipating heat of the inclined ejector block.

Preferably, the number of the inclined top guide sleeves is two, and the two inclined top guide sleeves are connected into a whole through the inclined top guide sleeve support sleeve.

This application advantage lies in, through the integrated configuration of straight top and oblique top, has avoided the motion of straight top, oblique ejector pin to interfere on the one hand, releases the bottom terminal surface space of straight ejector pin and oblique ejector pin simultaneously for lay the water route, can dispel the heat to straight kicking block and oblique kicking block. Simple structure is reasonable, and whole application is ingenious, has improved the unsafe factor of conventional sloping roof, has realized automatic production, has improved production efficiency greatly.

Drawings

FIG. 1 is a schematic view of a product provided in the example where there is a tip portion B distal from a body portion A and the tip portion B has an inverted structure;

FIG. 2 is an overview of the embodiment of the present invention with a straight top and a slanted top;

FIG. 3 is a schematic view of a straight ejector inclined ejector die structure provided in the example;

FIG. 4 is an exploded view of the straight-topped and slanted-topped mold structure provided in the example;

FIG. 5 is a schematic view of an embodiment of a straight ejector strip and inclined ejector die structure for ejecting a product;

FIG. 6 is a schematic diagram illustrating the operation of the straight-ejecting and inclined-ejecting mold structure from a mold closing state to an ejecting state in the embodiment;

reference numerals are as follows: the device comprises a straight ejector block 1, an inclined ejector block 2, a straight ejector guide sleeve 3, a straight ejector guide sleeve support sleeve 4, a straight ejector guide sleeve pressing block 5, a straight ejector rod 6, a straight ejector rod pressing block 7, a straight ejector rod fixing nut 8, a bent pipe joint 9, a water pipe fixing block 10, an inclined ejector rod fixing nut 11, an inclined ejector rod sliding part 12, an inclined ejector rod 13, an inclined ejector guide sleeve 14 and an inclined ejector guide sleeve support sleeve 15.

Detailed Description

In order to make the present application more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Examples

The embodiment provides a straight-top inclined ejecting die structure, which is particularly used for injection molding and processing a product similar to that shown in fig. 1, wherein a tip part B far away from a main body part A exists and an inverted structure exists in the tip part B; since the product exemplified in this embodiment is a symmetrical structure, taking one side of a symmetrical center line as an example, the straight-top inclined-top mold structure is shown in fig. 2 and fig. 3, and includes a straight-top assembly and an inclined-top assembly, the straight-top assembly includes a straight top rod 6 and a straight top block 1, the moving direction of the straight top rod 6 is to drive the straight top block 1 to vertically move, the shape of the straight top block 1 is matched with the upper mold core or the lower mold core to form a molding cavity for molding a main body part of the product, the inclined-top assembly includes an inclined top rod 13 and an inclined top block 2, the shape of the inclined top block 1 is matched with the upper mold core or the lower mold core to form a molding cavity for molding a tip part of the product and an inverted buckle structure, and the moving direction of the inclined top rod 13 is to drive the inclined top block 2 to vertically move and simultaneously horizontally move to separate from the inverted buckle structure; and an avoidance space C for avoiding the horizontal movement of the oblique ejecting block 2 is arranged between the straight ejecting block 1 and the oblique ejecting block 2, referring to fig. 5 and 6, when the ejection is carried out in a self-mold-closing state, the avoidance space avoids the movement interference of the oblique ejecting block 2 and the straight ejecting block 1. Therefore, according to the straight ejection structure with the inclined ejection structure, the straight ejection assembly is used for forming the main body part, the inclined ejection assembly is used for forming the tip part and the inverted buckle structure, and after forming and during mold ejection, due to the existence of the avoiding space C, the movement of the inclined ejection block 2 and the movement of the straight ejection block 1 do not interfere.

Specifically, the straight ejector assembly further comprises a straight ejector rod fixing nut 8 sleeved on the straight ejector rod 6, the straight ejector rod fixing nut 8 is connected with a straight ejector rod pressing block 7, the straight ejector rod pressing block 7 is used for connecting an ejector pin plate, the ejector pin plate abuts against the straight ejector rod pressing block 7 to drive the straight ejector rod 6 to move, a straight ejector guide sleeve 3 is sleeved outside the straight ejector rod 6, the straight ejector guide sleeve 3 is connected with a B plate through a straight ejector guide sleeve pressing block 5, one to two straight ejector guide sleeves 3 can be arranged, the movement of the straight ejector rod 6 plays a guiding role, and when the straight ejector guide sleeves 3 are arranged in two, the two straight ejector guide sleeves 3 are connected into a whole through a straight ejector guide sleeve supporting sleeve 4; in the embodiment, the straight ejector rod pressing block 7 is adopted to release the bottom space of the straight ejector rod 6, the water inlet and the water outlet are formed in the bottom end face of the straight ejector rod 6, the water channel is formed in the straight ejector rod 6 and communicated to the straight ejector block 1 to dissipate heat of the straight ejector block 1, and the water inlet and the water outlet in the bottom end face of the straight ejector rod 6 are connected with the water pipe through the elbow joint 9. Similarly, the inclined ejector component further comprises an inclined ejector rod fixing nut 11 sleeved on an inclined ejector rod 13, the inclined ejector rod fixing nut 11 is connected with an inclined ejector rod sliding piece 12, the inclined ejector rod sliding piece 12 comprises a connecting block connected with the inclined ejector rod fixing nut 11 and a sliding block which is arranged on the connecting block and can horizontally slide, a horizontal sliding groove is formed in the connecting block, the sliding block is arranged in the sliding groove, the sliding block is used for connecting an ejector plate, the ejector plate drives the sliding block to vertically move and transmit the movement to the inclined ejector rod 13 through the inclined ejector rod sliding piece 12, an inclined ejector guide sleeve 14 is sleeved outside the inclined ejector rod 13, the inclined ejector guide sleeve 14 is connected with a plate B, the inclined ejector guide sleeves 14 are obliquely arranged, the number of the inclined ejector guide sleeves can be one to two, and the inclined ejector guide sleeve 14 plays a role in guiding the movement of the inclined ejector rod 13; when two inclined top guide sleeves 14 are arranged, the two inclined top guide sleeves 14 are connected into a whole through an inclined top guide sleeve supporting sleeve 15; in the embodiment, the inclined ejector rod sliding part 12 is adopted to release the bottom space of the inclined ejector rod 13, the bottom end surface of the inclined ejector rod 13 is provided with a water inlet and a water outlet, a water channel is arranged in the inclined ejector rod 13 and communicated to the inclined ejector block 2 to dissipate heat of the inclined ejector block 2, and the water inlet and the water outlet on the bottom end surface of the inclined ejector rod 13 are connected with a water pipe; the water pipes connected with the straight ejector rod 6 and the inclined ejector rod 13 are gathered and fixed on the water pipe fixing block 10 and then connected to the circulating water tank.

Specifically, lubricating oil is arranged between the straight ejector rod 6 and the straight ejector guide sleeve 3 and between the oblique ejector rod 13 and the oblique ejector guide sleeve 14, so that sliding resistance is reduced.

In conclusion, the straight ejector belt obliquely-ejecting mold structure provided by the embodiment avoids the movement interference of the straight ejector and the obliquely-ejecting mold on the one hand, and releases the bottom end face space of the straight ejector rod and the oblique ejector rod simultaneously for arranging a water channel, so that the straight ejector block and the oblique ejector block can be cooled. Through the redesign of structure, to the product that there is the back-off structure in the tip part and the tip part that keep away from the main part to the existence, demolding simple structure is reasonable, and whole application is ingenious, has improved conventional oblique top unsafe factor, has realized automatic production, has improved production efficiency greatly.

Claims

1. A straight-ejecting and inclined-ejecting mold-stripping structure is used for injection molding of a product with a tip part far away from a main body part and an inverted-buckle structure at the tip part, and is characterized by comprising a straight-ejecting component and an inclined-ejecting component, wherein the straight-ejecting component comprises a straight ejecting rod (6) and a straight ejecting block (1), and the shape of the straight ejecting block (1) is matched with that of an upper mold core or a lower mold core to form a molding cavity for molding the main body part of the product; the inclined ejection assembly comprises an inclined ejection rod (13) and an inclined ejection block (2), and the shape of the inclined ejection block (2) is matched with that of the upper mold core or the lower mold core to form a forming cavity for forming a tip part and an inverted buckle structure of a product; an avoidance space for avoiding the horizontal motion of the inclined ejector block (2) is arranged between the straight ejector block (1) and the inclined ejector block (2).

2. The straight ejector belt inclined ejector die structure as recited in claim 1, wherein a straight ejector rod fixing nut (8) is sleeved on the straight ejector rod (6), the straight ejector rod fixing nut (8) is connected with a straight ejector rod pressing block (7), and the straight ejector rod pressing block (7) is connected with an ejector pin plate for driving the straight ejector rod (6) to move; the water inlet and outlet are formed in the end face of the bottom end of the straight ejector rod (6), a water path is formed in the straight ejector rod (6), and the water path is communicated to the straight ejector block (1) and used for dissipating heat of the straight ejector block (1).

3. The structure of the straight ejector inclined ejector die according to claim 2, characterized in that the straight ejector pin (6) is further sleeved with a straight ejector guide sleeve (3) for motion guidance, and the straight ejector guide sleeve (3) is connected with the B plate.

4. The structure of the straight ejecting inclined ejecting die according to claim 3, characterized in that the number of the straight ejecting guide sleeves (3) is two, and the two straight ejecting guide sleeves (3) are connected into a whole through the straight ejecting guide sleeve supporting sleeve (4).

5. The structure of claim 1, characterized in that the oblique ejector rod (13) is sleeved with an oblique ejector rod fixing nut (11), the oblique ejector rod fixing nut (11) is connected with an oblique ejector rod sliding member (12), the oblique ejector rod sliding member (12) comprises a connecting block and a sliding block, a horizontal sliding groove is formed in the connecting block, the sliding block is arranged in the sliding groove, the connecting block is connected with the oblique ejector rod fixing nut (11), and the sliding block is connected with an ejector plate for driving the oblique ejector rod (13) to move; the inclined ejector rod (13) is further sleeved with an inclined ejector guide sleeve (14) for motion guiding, the inclined ejector guide sleeve (14) is obliquely arranged, and the inclined ejector guide sleeve (14) is connected with the plate B; the water inlet and outlet are formed in the end face of the bottom of the inclined ejector rod (13), a water path is formed in the inclined ejector rod (13), and the water path is communicated to the inclined ejector block (2) and used for dissipating heat of the inclined ejector block (2).

6. The structure of a straight-top inclined ejecting die according to claim 5, characterized in that the number of the inclined ejecting guide sleeves (14) is two, and the two inclined ejecting guide sleeves (14) are connected into a whole through the inclined ejecting guide sleeve supporting sleeve (15).