CN219618417U - Parting core-pulling mechanism and mold suitable for molding product with spiral blade - Google Patents

Abstract

The utility model discloses a parting core-pulling mechanism suitable for molding a product with a helical blade, which comprises the following components: a power assembly; the rack is arranged and fixed at the end part of the power assembly; the gear ring is an annular cylinder, and the outer wall of the gear ring is at least partially provided with gear teeth meshed with the rack; the outer wall of the gear ring is provided with a travel hole communicated with the inner wall; the plurality of groups of sliding rails are circumferentially arranged around and fixed on the rear die, the sliding rails are arc-shaped, and the sliding rails are rotationally arranged from the rear die to the front die from the first end to the second end; the sliding blocks are arranged in one-to-one correspondence with the sliding rails, are circumferentially arranged in a surrounding manner, and form a cavity for forming the spiral blade; the side of the sliding block is fixedly connected with a ball shifting block which is arranged in a travel hole of the gear ring. The utility model also discloses a mould suitable for forming the product with the helical blade. The utility model realizes easy demoulding, effectively improves the forming efficiency and has high product percent of pass.

Description

Parting core-pulling mechanism and mold suitable for molding product with spiral blade

Technical Field

The utility model relates to a parting core-pulling mechanism and a mold.

Background

The structure of the product with the spiral blades, such as the wind wheel product, is shown in fig. 1, and comprises a cover body 1 'and a plurality of spiral blades 2' arranged in the cover body 1', wherein the spiral blades 2' are spirally twisted, the tail end b of any group of the spiral blades 2 'of the product exceeds the head end a of the adjacent spiral blades, and the tail ends of the spiral blades 2' are in a zigzag shape.

The patent with publication number CN 107649574A discloses a centrifugal wind wheel forming die, which comprises a plurality of expansion sleeves, wherein the expansion sleeves are annularly arranged in the horizontal direction and uniformly distributed on the outer side of an expansion core, the expansion core moves up and down, and simultaneously pushes all the expansion sleeves to enable the expansion sleeves to be far away from or close to each other, so that a die core is contracted or expanded. The die with the structure is suitable for wind wheel products with common arc blades, but is not suitable for more complex wind wheel products with spiral blades.

Disclosure of Invention

The utility model aims to provide a parting core pulling mechanism and a parting core pulling mold which are suitable for molding a product with a spiral blade, so that the parting core pulling mechanism is suitable for molding and demolding the product with the spiral blade, and the product qualification rate is high. In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model discloses a parting core-pulling mechanism suitable for molding a product with a helical blade, which comprises the following components: a power assembly provided with at least one; the rack is arranged and fixed at the end part of the power assembly; the gear ring is an annular cylinder, and the outer wall of the gear ring is at least partially provided with gear teeth meshed with the rack; the outer wall of the gear ring is provided with a travel hole communicated with the inner wall; the sliding rails are circumferentially arranged around and fixed on the rear die, are arc-shaped, and are rotatably arranged from the rear die to the front die from the first end to the second end; the sliding blocks are arranged in one-to-one correspondence with the sliding rails, are circumferentially arranged in a surrounding mode, and form a cavity for forming the spiral blade; the side of the sliding block is fixedly connected with a ball shifting block, and the ball shifting block is arranged in a travel hole of the gear ring; the sliding block is located at the first end of the sliding rail to form a product with spiral blades, and after the product is formed, the sliding block moves from the first end to the second end along the sliding rail to achieve product demoulding.

Further, the power component is an oil cylinder, and sliding layers capable of reducing rotation friction of the gear ring are arranged at two ends of the gear ring.

Preferably, the sliding layer is composed of a plurality of sliding balls arranged in an annular shape.

Further, the sliding rail fixing device further comprises a plurality of limiting blocks, wherein the limiting blocks are fixed at the first end of the sliding rail and are used for limiting the sliding block not to exceed the sliding rail; the travel hole is a strip-shaped hole, and the travel hole is obliquely arranged.

Preferably, the sliding block comprises a first sliding block and a second sliding block fixedly connected with the first sliding block, and grooves are formed in the first sliding block and the second sliding block; flanges are arranged on two sides of the sliding rail, the first sliding block and the second sliding block are respectively arranged on two sides of the sliding rail, and the grooves are matched with the flanges.

Preferably, the device further comprises a slide rail pressing plate, wherein the bottom of the slide rail pressing plate protrudes out of the arc-shaped protruding blocks which are arranged in one-to-one correspondence with the slide rails, and the slide rails are locked on the arc-shaped protruding blocks.

The utility model also discloses a die suitable for forming the product with the helical blade, which comprises a front die and a rear die, wherein the parting core-pulling mechanism is arranged in the rear die.

The front die comprises a front fixing plate, a stripper plate, a front template, a runner insert and a front die core; the front fixing plate, the stripper plate and the front template are sequentially arranged, the runner insert is embedded in the front die, a runner channel is arranged in the runner insert, and the runner channel is communicated with the pouring gate on the front fixing plate. The rear mold comprises a front mold plate, a rear mold core, a front mold cavity, a rear mold cavity and a thimble assembly, wherein the rear mold plate is arranged on the rear side of the front mold plate; the rear die core is fixed on the rear fixing plate, and the ejector pin assembly is used for ejecting out a product.

Preferably, the front mold core comprises a core part corresponding to the shape of the product and a sleeving part arranged above the core part, a discharging nozzle is arranged at the bottom end of the core part, and a discharging hole corresponding to the cavity of the forming spiral blade is circumferentially arranged on the core part. The utility model discloses a runner mold insert, including the runner mold insert, the cover is connected with the runner mold insert, be provided with in the cover portion and be used for inlaying to establish the open chamber of runner mold insert, open chamber bottom is provided with main launder and distributes in the splitter box of main launder week side, main launder leads to the discharge gate, the tip intercommunication of splitter box the discharge gate.

Preferably, the joint of the sleeving part and the core part is a mounting surface, a plurality of positioning blocks are arranged on the mounting surface, positioning grooves are formed in the sliding blocks, and the positioning blocks are embedded in the positioning grooves.

Due to the adoption of the structure, the utility model has the following beneficial effects: according to the utility model, the power assembly drives the gear ring to rotate, so that the sliding block is driven to move on the sliding rail, separation from a product is realized, demolding is easy, and the molding efficiency is effectively improved.

Drawings

Fig. 1 is a schematic view of a wind wheel product in the background art.

Fig. 2 is a schematic structural view of the mold of the present utility model.

FIG. 3 is a schematic view of the rear mold portion of FIG. 2 with the ejector pin assembly and the like hidden.

Fig. 4 is a schematic cross-sectional view of fig. 3.

Fig. 5 is a schematic structural view of the parting core-pulling mechanism and the front mold insert and the rear mold insert.

Fig. 6 is a schematic cross-sectional view of fig. 5.

Fig. 7 is an exploded view of fig. 5.

Fig. 8 is a schematic structural view of the parting core pulling mechanism.

Fig. 9 is a schematic sectional view of the parting core pulling mechanism.

Fig. 10 is a schematic structural view of a hidden cylinder, rack and gear ring of the parting core-pulling mechanism.

Fig. 11 is another angular structural schematic diagram of fig. 10.

FIG. 12 is a schematic view of a set of slide rails, sliders, stopper blocks and ball dials.

Fig. 13 is an exploded view of fig. 12.

Fig. 14 is a front view of the connection of seven sets of sliders.

Fig. 15 is a schematic view of the structure in which the slider moves to the second end of the slide rail (only two sets of sliders are shown).

Fig. 16 is a schematic structural view of the slide rail platen.

Fig. 17 is a schematic diagram of the front mold core.

Description of main reference numerals:

1: front fixing plate

2: stripper plate

3: front template

4: runner insert, 41: flow passage channel

5: front mold insert, 51: core, 511: discharge nozzle, 512: discharge gate, 52: socket, 521: open cavity, 522: main launder, 523: shunt grooves, 53: mounting face, 531: the positioning block is arranged on the upper surface of the base,

6: rear template

7: parting core-pulling mechanism, 71: hydro-cylinder, 72: rack, 73: gear ring 731: gear teeth, 732: travel hole, 733: sliding ball, 74: slide rail, 741: flange, 75: slide block, 751: first slider, 752: second slider, 753: groove 754: ball dial, 755: positioning groove 756: screw, 76: stopper, 77: slide rail briquetting, 771: arc-shaped bump, 78: cavity

8: rear fixing plate

9: rear mould core

10: ejector plate

11: reset lever

12: foot plate of mould

13: bottom plate

14: wind wheel

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a parting core-pulling mechanism and a mold suitable for molding a product with a spiral blade. The parting core-pulling mechanism of the utility model can be combined with various die structures, and the embodiment only uses a better die structure for description.

The mold illustrated in the present utility model is used to form the wind wheel 14 of fig. 1 with seven helical blades.

As shown in fig. 2 to 7, the present utility model is applicable to a mold for molding a helically bladed product, the mold including a front mold and a rear mold. The front mould comprises a front fixing plate 1, a stripper plate 2, a front mould plate 3, a runner insert 4 and a front mould core 5. The front fixing plate 1, the stripper plate 2 and the front template 3 are sequentially arranged, the runner insert 4 is embedded in the front mold, a runner channel 41 is arranged in the runner insert 4, and the runner channel 41 is communicated with a gate on the front fixing plate 1.

The rear mold comprises a rear mold plate 6, a rear fixing plate 8, a rear mold core 9, a thimble assembly and a parting core-pulling mechanism 7. The rear template 6 is arranged at the rear side of the front template 3, the parting core-pulling mechanism 7 is arranged between the front mould core 5 and the rear mould core 9, the sliding blocks of the parting core-pulling mechanism 7 and the rear mould core 9 and the front mould core 5 form a cavity 78 for forming a product, and the cavity 78 is communicated with the runner channel 41. The rear mould core 6 is fixed on the rear fixing plate 8, and the thimble assembly comprises two thimble plates 10 and a plurality of reset rods 11. The two sides of the ejector plate 10 are provided with a template plate 12, and the rear end of the ejector plate 10 is provided with a bottom plate 13.

As shown in fig. 8 and 9, the parting core-pulling mechanism 7 includes a power assembly, a rack 72, a gear ring 73, a plurality of slide rails 74, a plurality of sliders 75, a stopper 76, and a slide rail platen 77. The power assembly of this embodiment is an oil cylinder 71, and two oil cylinders 71 and two racks 72 are provided, and the racks 72 are mounted and fixed at the end of the oil cylinder 71. The shaft of the oil cylinder 71 is extended or contracted to drive the rack 72 to move linearly.

The gear ring 73 is installed in the rear die plate 6, and both sides of the rear die plate 6 are hollowed out. The rear die plate 6 is hollowed out and is externally provided with an oil cylinder 71 and a rack 72 at both sides. The gear ring 73 is a circular cylinder, the outer wall of the gear ring 73 is at least partially provided with gear teeth 731 meshed with the rack 72, and the outer wall of the gear ring 73 is provided with a travel hole 732 communicated with the inner wall. The travel hole 732 is a long hole, and the travel hole 732 is inclined. The two ends of the gear ring 73 are provided with sliding layers, which in this embodiment are composed of a plurality of sliding balls 733 arranged in a ring shape, and by this arrangement, the friction force of the rotation of the gear ring is reduced, so that the rotation of the gear ring 73 is smoother.

As shown in fig. 16, a slide rail pressing plate 77 is fixed to the rear die plate 6. The bottom of the slide rail pressing plate 77 protrudes out of the arc-shaped protruding blocks 771 which are arranged in one-to-one correspondence with the slide rails 74, and the slide rails 74 are locked on the arc-shaped protruding blocks 771.

As shown in fig. 10 and 11, seven sets of slide rails 74 are fixed to a slide rail pressing plate 77. The sliding rail 74 is arc-shaped, and the sliding rail 74 is rotatably arranged from the first end c to the second end d in the direction from the rear die to the front die.

As shown in fig. 9 to 13, seven sets of sliders 75 are arranged in one-to-one correspondence with the seven sets of slide rails 75, the sliders 75 are circumferentially arranged around each other, and a cavity for molding the helical blade is formed between the sliders 75. As shown in fig. 13, the slider 75 includes a first slider 751 and a second slider 752, and the first slider 751 and the second slider 752 are fixedly connected by two screws 756. The first slider 751 and the second slider 752 are provided with grooves 753, flanges 741 are arranged on two sides of the sliding rail 74, the first slider 751 and the second slider 752 are respectively arranged on two sides of the sliding rail 74, and the grooves 753 are matched with the flanges 741, so that stable movement of the sliding rail 75 along the sliding rail 74 is realized. As shown in fig. 10 and 8, a ball dial 754 is fixedly attached to the side of the slider 75, and the ball dial 754 is mounted in the stroke hole 732 of the gear ring 73 and moves in the stroke hole 732.

The stopper 76 is fixed to the first end of the sliding rail 74, for limiting the sliding block 75 not to exceed the sliding rail 74, and in some embodiments, the stopper 76 may not be provided, and the movement of the sliding block 75 may be limited by the position of the travel hole 732. The limiting block 76 is arranged to play a more safe limiting role.

The sliding rail 74, the sliding block 75, the limiting block 76 and the ball-end shifting block are arranged in groups, and because the wind wheel 14 comprises seven spiral blades, seven groups of the sliding rail 74, the sliding block 75, the limiting block 76 and the ball-end shifting block 754 are also arranged, as shown in fig. 12 and 13 which are connection diagrams of a group of structures, and as shown in fig. 14, the seven groups of structures are circumferentially arranged. When the sliding block 75 is positioned at the first end of the sliding rail 74, a product with spiral blades is formed, after the molding, the shaft rod of the oil cylinder 71 is contracted, the rack 72 is driven by the oil cylinder 71 to move, the rack 72 is meshed with the gear teeth 731, the gear ring 73 is driven to rotate, the stroke hole 732 drives the ball-end shifting block 754 to move, and accordingly the sliding block 75 is driven to move along the sliding rail 74 from the first end c to the second end d, and demolding of the wind wheel 14 is achieved, as shown in fig. 15.

As shown in fig. 17, the front mold core 5 includes a core 51 corresponding to the shape of the product (upper cover of the wind wheel) and a socket 52 provided above the core 51, a discharge nozzle 511 is provided at the bottom end of the core 51, and a discharge port 512 corresponding to the cavity of the molded helical blade is provided circumferentially in the core 51. As shown in fig. 7, the connection between the socket 52 and the core 51 is a mounting surface 53, a plurality of positioning blocks 531 are provided on the mounting surface 53, positioning grooves 755 are provided on the slider 75, and the positioning blocks 531 are embedded in the positioning grooves 755. During installation, the front die core 5 is installed on the sliding block 75, the positioning block 531 is installed in the positioning groove 755 to realize positioning, and a cavity for forming the upper cover body of the wind wheel is formed between the front die core 5 and the sliding block 75. As shown in fig. 6 and 9, a cavity 78 for molding the rotor blade is formed between the sliders 75 (two adjacent sliders 75a and 75b are shown).

As shown in fig. 6, an open cavity 521 for embedding the runner insert 4 is provided in the sleeve portion 52, a main flow groove 522 and a diversion groove 523 distributed on the circumferential side of the main flow groove 522 are provided at the bottom of the open cavity 521, the main flow groove 522 is led to the discharge nozzle 511, and the end of the diversion groove 523 is communicated with the discharge port 512.

The sizing material enters the main flow groove 522 of the front mold core 5 from the pouring gate through the flow passage 41 in the flow passage insert 4, and the sizing material in the main flow groove 522 partially flows into the discharge nozzle 511, partially flows into the diversion groove 523 and flows into the discharge port 512 through the diversion groove 523, so that the sizing material enters the cavity 78 in different directions, the molded spiral blade is more uniform, and the quality and the qualification rate of the product are improved.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. Parting core-pulling mechanism suitable for shaping takes helical blade product, its characterized in that includes:

a power assembly provided with at least one;

the rack is arranged and fixed at the end part of the power assembly;

the gear ring is an annular cylinder, and the outer wall of the gear ring is at least partially provided with gear teeth meshed with the rack; the outer wall of the gear ring is provided with a travel hole communicated with the inner wall;

the sliding rails are circumferentially arranged around and fixed on the rear die, are arc-shaped, and are rotatably arranged from the rear die to the front die from the first end to the second end;

the sliding blocks are arranged in one-to-one correspondence with the sliding rails, are circumferentially arranged in a surrounding mode, and form a cavity for forming the spiral blade; the side of the sliding block is fixedly connected with a ball shifting block, and the ball shifting block is arranged in a travel hole of the gear ring; the sliding block is located at the first end of the sliding rail to form a product with spiral blades, and after the product is formed, the sliding block moves from the first end to the second end along the sliding rail to achieve product demoulding.

2. A parting core-pulling mechanism suitable for molding a helically bladed product as in claim 1, wherein: the power assembly is an oil cylinder, and sliding layers capable of reducing rotation friction of the gear ring are arranged at two ends of the gear ring.

3. A parting core-pulling mechanism suitable for molding a helically bladed product as in claim 2, wherein: the sliding layer is composed of a plurality of sliding balls which are annularly arranged.

4. A parting core-pulling mechanism suitable for molding a helically bladed product as in claim 1, wherein: the sliding block is fixed at the first end of the sliding rail and used for limiting the sliding block not to exceed the sliding rail; the travel hole is a strip-shaped hole, and the travel hole is obliquely arranged.

5. A parting core-pulling mechanism suitable for molding a helically bladed product as in claim 1, wherein: the sliding block comprises a first sliding block and a second sliding block fixedly connected with the first sliding block, and grooves are formed in the first sliding block and the second sliding block; flanges are arranged on two sides of the sliding rail, the first sliding block and the second sliding block are respectively arranged on two sides of the sliding rail, and the grooves are matched with the flanges.

6. A parting core-pulling mechanism suitable for molding a helically bladed product as in claim 1, wherein: the sliding rail pressing plate is characterized by further comprising a sliding rail pressing plate, wherein the bottom of the sliding rail pressing plate protrudes out of the arc-shaped protruding blocks which are arranged in one-to-one correspondence with the sliding rails, and the sliding rails are locked on the arc-shaped protruding blocks.

7. The utility model provides a mould suitable for shaping takes helical blade product, includes front mould and back mould, its characterized in that: the parting core-pulling mechanism as defined in any one of claims 1 to 6 is arranged in the rear mold.

8. A mold suitable for molding a helically bladed product as in claim 7, wherein: the front die comprises a front fixing plate, a stripper plate, a front template, a runner insert and a front die core; the front fixing plate, the stripper plate and the front template are sequentially arranged, the runner insert is embedded in the front die, a runner channel is arranged in the runner insert, and the runner channel is communicated with a sprue on the front fixing plate;

the rear mold comprises a front mold plate, a rear mold core, a front mold cavity, a rear mold cavity and a thimble assembly, wherein the rear mold plate is arranged on the rear side of the front mold plate; the rear die core is fixed on the rear fixing plate, and the ejector pin assembly is used for ejecting out a product.

9. A mold suitable for molding a helically bladed product as in claim 8, wherein: the front mold core comprises a core part corresponding to the shape of a product and a sleeving part arranged above the core part, a discharge nozzle is arranged at the bottom end of the core part, and a discharge port corresponding to a cavity of the molded spiral blade is circumferentially arranged on the core part;

the utility model discloses a runner mold insert, including the runner mold insert, the cover is connected with the runner mold insert, be provided with in the cover portion and be used for inlaying to establish the open chamber of runner mold insert, open chamber bottom is provided with main launder and distributes in the splitter box of main launder week side, main launder leads to the discharge gate, the tip intercommunication of splitter box the discharge gate.

10. A mold suitable for molding a helically bladed product as in claim 9, wherein: the connecting part of the sleeving part and the core part is a mounting surface, a plurality of positioning blocks are arranged on the mounting surface, positioning grooves are formed in the sliding blocks, and the positioning blocks are embedded in the positioning grooves.