CN218928481U

CN218928481U - Injection mold of impeller

Info

Publication number: CN218928481U
Application number: CN202223530033.6U
Authority: CN
Inventors: 黄维; 黄德兴
Original assignee: Foshan Keshuo Precision Injection Molding Co ltd
Current assignee: Foshan Keshuo Precision Injection Molding Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-28
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an injection mold of an impeller, which comprises a front mold core, an inclined guide post, a rear mold core, a row position, an ejector pin plate, an ejector pin, a front mold plate, a rear mold plate, a base plate, square iron blocks and a bottom plate which are sequentially arranged from top to bottom, wherein the row position is arranged on the rear mold plate, one end of the inclined guide post is fixed on the front mold plate, one end of the ejector pin is fixed on the ejector pin plate, the other end of the ejector pin can penetrate through the rear mold core and then extend out, the row position comprises a first row position block and a second row position block, the other end of the inclined guide post can be matched with the first row position block, one side of the first row position block is provided with a first inclined surface, the top end of the second row position block is provided with a second inclined surface, a spring is arranged between the first row position block and the second row position block, and the lower side of the second row position block is provided with a back-off. When the impeller is used for demolding, the first row of position blocks outwards move, the rebound force of the spring pushes the second row of position blocks to upwards move in an inclined mode, so that the back-off on the lower side of the second row of position blocks is separated from the corresponding back-off structure on the product, the impeller is convenient for demolding during injection molding, and the demolding quality of the product is guaranteed.

Description

Injection mold of impeller

Technical Field

The utility model belongs to the field of injection molds, and particularly relates to an injection mold of an impeller.

Background

Because the blades in the impeller are spiral, and the bottom of the impeller inner ring is provided with the back-off structure 100 (namely, the arc edge turned from the impeller inner ring to the outer ring), when demoulding, the mould core for forming the blades withdraws outwards for demoulding, and the thimble is in a fastening state at the forming position corresponding to the back-off structure 100 (shown in figure 1) when ejection, so that demoulding difficulty is high.

Disclosure of Invention

The present utility model aims to provide an injection mold for an impeller which solves at least one of the above problems.

According to one aspect of the utility model, there is provided an injection mold of an impeller, comprising a front mold core, an inclined guide post, a rear mold core, a row position, an ejector plate, an ejector pin, a front mold plate, a rear mold plate, a base plate, square iron blocks and a bottom plate which are sequentially arranged from top to bottom, wherein the front mold core is arranged on the front mold plate, the rear mold core is arranged on the rear mold plate, the front mold core and the rear mold core are correspondingly arranged, the row position is arranged on the rear mold plate, one end of the inclined guide post is fixed on the front mold plate, the ejector pin plate is arranged on the inner side of the square iron block, one end of the ejector pin is fixed on the ejector plate, the other end of the ejector pin can penetrate through the rear mold core and extend out, the row position comprises a first row position block and a second row position block, the other end of the inclined guide post can be matched with the first row position block, one side of the first row position block is provided with a first inclined surface, the top end of the second row position block is provided with a second inclined surface, the first inclined surface is matched with the second inclined surface, a spring is arranged between the first row position block and the second row position block, the spring is arranged obliquely, and the lower side of the second row position block is provided with a back button.

The beneficial effects of the utility model are as follows: through being equipped with first row position piece and second row position piece, therefore, when the drawing of patterns, the oblique guide pillar removes along with the front bezel, under the effect of oblique guide pillar, first row position piece outwards removes, the rebound force of spring pushes away from the direction removal of first row position piece of second row position piece, and owing to be equipped with first inclined plane and second inclined plane, make the second row position piece upwards move gradually when moving, thereby make the back-off of second row position piece downside break away from with corresponding back-off structure on the product mutually, then it is ejecting with the product through the thimble, the drawing of patterns problem of impeller has been solved, the drawing of patterns of making things convenient for the impeller to mould plastics has been guaranteed the drawing of patterns quality of product.

In some embodiments, the row position further comprises a connecting rod and a connecting block, the second inclined surface is provided with a sliding groove, the connecting block is arranged on the sliding groove, one end of the connecting rod is fixed on the first row position block, and the other end of the connecting rod is connected with the connecting block. From this, through being equipped with connecting rod and connecting block, can play the guide effect to the removal of second row position piece, guarantee that the back-off can take place to break away from with the product.

In some embodiments, the first row of position blocks are provided with first mounting holes, the second row of position blocks are provided with second mounting holes, two ends of the spring are respectively arranged in the first mounting holes and the second mounting holes, and the spring is arranged in parallel with the second inclined surface. Therefore, the spring can be conveniently installed by being provided with the corresponding installation holes.

In some embodiments, the injection mold of the impeller further comprises a guide post, the front template is provided with a guide hole, one end of the guide post is fixed on the rear template, and the other end of the guide post can be matched with the guide hole. Therefore, by the guide post, the front template and the rear template can be accurately clamped, and the clamping precision is ensured.

In some embodiments, the injection mold of the impeller further comprises a Jiang Lafu bit block, and the forced pulling reset block is disposed at the bottom end of the ejector plate. Therefore, the ejector plate and the ejector pin are convenient to reset by strong pulling.

Drawings

FIG. 1 is a schematic product construction of an impeller;

FIG. 2 is a schematic structural view of another view of the impeller;

FIG. 3 is a schematic view of the front view of the impeller of the present utility model in an open state of the injection mold;

FIG. 4 is a schematic view of the structure of the impeller of the present utility model in an open state of the injection mold;

FIG. 5 is a schematic view of the structure of the rows in the injection mold opening of the impeller of the present utility model;

FIG. 6 is a schematic view of the structure of part of the row of the injection mold of the impeller of the present utility model;

fig. 7 is a schematic view showing the structure of the row position of the injection mold of the impeller of the present utility model in the mold-closed state.

Fig. 8 is a schematic view of the structure of the row position of the injection mold of the impeller of the present utility model in the mold-opened state.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Referring to fig. 3 to 8. The injection mold of impeller includes preceding mold core 1, oblique guide pillar 2, back mold core 3, row position 4, thimble board 5, thimble 6 and from top to bottom arrange preceding template 7 in proper order, back template 8, backing plate 9, square iron piece 10 and bottom plate 20, preceding mold core 1 locates on preceding template 7, back mold core 3 locates on back template 8, preceding mold core 1 corresponds the setting with back mold core 3, row position 4 locates on back template 8, the one end of oblique guide pillar 2 is fixed on preceding template 7, the inboard of square iron piece 10 is located to thimble board 5, the one end of thimble 6 is fixed on thimble board 5, the other end can run through back mold core 3 back and stretch out, row position 4 includes first row position piece 41 and second row position piece 42, the other end of oblique guide pillar 2 can cooperate with first row position piece 41, one side of first row position piece 41 is equipped with first inclined plane 411, the top of second row position piece 42 is equipped with second inclined plane 421, first inclined plane 411 and second inclined plane 421 cooperate, be equipped with spring 30 between first row position piece 41 and the second row position piece 42, the second row position piece 42 sets up spring 30, the downside of second row position piece is equipped with the upside down.

When the mold is closed, the front mold plate 7 and the rear mold plate 8 are closed, so that the front mold core 1 and the rear mold core 3 are closed to form a cavity; the row position 4 moves to one side of the cavity under the action of the inclined guide post 2, so that the front end of the row position extends into the cavity, and the impeller (shown in fig. 1 and 2) is convenient for injection molding.

The row position 4 further comprises a connecting rod 43 and a connecting block 44, the second inclined surface 421 is provided with a sliding groove 423, the connecting block 44 is arranged on the sliding groove 423, one end of the connecting rod 43 is fixed on the first row position block 41, and the other end is connected with the connecting block 44. By the cooperation of the connection block 44 and the chute 423, the connection block 44 can move along the chute 423, and plays a guiding role.

The first row of position blocks 41 are provided with first mounting holes, the second row of position blocks 42 are provided with second mounting holes, two ends of the spring 30 are respectively arranged in the first mounting holes and the second mounting holes, and the spring 30 and the second inclined surface 421 are arranged in parallel.

The injection mould of impeller still includes guide post 40, is equipped with guiding hole 71 on the front mould board 7, and the one end of guide post 40 is fixed on back mould board 8, and the other end can cooperate with guiding hole 71. During mold closing, the guide post 40 is inserted into the guide hole 71 to perform a guide function, thereby ensuring mold closing accuracy.

The impeller injection mold further comprises a Jiang Lafu bit block 50, and a Jiang Lafu bit block 50 is arranged at the bottom end of the ejector plate 5. Wherein, jiang Lafu is equipped with the bayonet socket on the piece 50, can make things convenient for external structure to fix in this bayonet socket through the bayonet socket, then acts on Jiang Lafu piece 50 through external force, is convenient for the strong pulling of thimble board 5 and thimble 6 to reset.

The specific mold opening and closing process of the injection mold of the impeller is as follows:

when the impeller injection molding is completed and needs to be opened, the front template 7 is opened, and in the opening process of the front template 7, the inclined guide pillar 2 acts on the first row of position blocks 41, so that the first row of position blocks 41 move outwards; under the action of the resilience of the spring 30, the second row of position blocks 42 is pushed to move upwards along the first inclined surface 411, so that the back-off 422 on the lower side of the second row of position blocks 42 is separated from the back-off position on the product. Then, the ejector pin plate 5 drives the ejector pins 6 to move upwards, the ejector pins 6 eject the product, and demolding of the product is achieved.

When the demoulding of the product is completed, external force acts on the Jiang Lafu position block 50, the ejector pin plate 5 and the ejector pin 6 are pulled to forcibly reset, the front template 7 and the rear template 8 are assembled, and the first position block 41 moves inwards to reset under the action of the inclined guide post 2; after the second row of blocks 42 hits the rear mold core, they are pulled back under the action of external force to reset, and at this time, the springs are in a compressed state. After each structure resets, accomplish the compound die, the next injection molding of the product of being convenient for.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the present utility model.

Claims

1. The impeller injection mold is characterized by comprising a front mold core (1), an inclined guide post (2), a rear mold core (3), a row position (4), a thimble plate (5), a thimble (6) and a front mold plate (7), a rear mold plate (8), a base plate (9), fang Tiekuai (10) and a bottom plate (20) which are sequentially arranged from top to bottom, wherein the front mold core (1) is arranged on the front mold plate (7), the rear mold core (3) is arranged on the rear mold plate (8), the front mold core (1) and the rear mold core (3) are correspondingly arranged, the row position (4) is arranged on the rear mold plate (8), one end of the inclined guide post (2) is fixed on the front mold plate (7), the thimble plate (5) is arranged on the inner side of a square iron block (10), one end of the thimble (6) is fixed on the thimble plate (5), the other end of the thimble plate (6) can penetrate through the rear mold core (3) and then stretch out, the row position (4) comprises a first row position block (41) and a second row position block (42), the other end of the inclined guide post (2) can be provided with a first inclined surface (41) which is matched with the first inclined surface (411) on the first side (41), a spring (30) is arranged between the first row of potential blocks (41) and the second row of potential blocks (42), the spring (30) is obliquely arranged, and a back-off buckle (422) is arranged on the lower side of the second row of potential blocks (42).

2. The injection mold of the impeller according to claim 1, wherein the row position (4) further comprises a connecting rod (43) and a connecting block (44), a sliding groove (423) is formed in the second inclined surface (421), the connecting block (44) is arranged on the sliding groove (423), one end of the connecting rod (43) is fixed on the first row position block (41), and the other end of the connecting rod is connected with the connecting block (44).

3. The injection mold of the impeller according to claim 2, wherein the first row of position blocks (41) are provided with first mounting holes, the second row of position blocks (42) are provided with second mounting holes, two ends of the spring (30) are respectively arranged in the first mounting holes and the second mounting holes, and the spring (30) is arranged in parallel with the second inclined surface (421).

4. An injection mould for an impeller according to any one of claims 1 to 3, further comprising a guide post (40), wherein the front mould plate (7) is provided with a guide hole (71), one end of the guide post (40) is fixed to the rear mould plate (8), and the other end of the guide post is capable of being matched with the guide hole (71).

5. The injection mold of the impeller according to claim 4, further comprising a Jiang Lafu bit block (50), wherein the Jiang Lafu bit block (50) is provided at the bottom end of the ejector plate (5).