CN221717718U - A surface exhaust device for injection mold - Google Patents

Abstract

The utility model provides a surface exhaust device for an injection mold, which relates to the technical field of injection molds, and includes a lower mounting seat and an upper mounting seat, wherein a base is installed at the bottom of the lower mounting seat, and support columns are vertically installed at the four corners of the top of the lower mounting seat, and the tops of several support columns are interconnected with the upper mounting seat, and a cylinder is installed at the top of the upper mounting seat, and the bottom of the cylinder is connected with an upper mold seat, and a mold cavity is arranged inside the lower mounting seat, and the upper mold seat and the mold cavity are engaged with each other, and several exhaust holes are evenly arranged on both sides of the mold cavity inside the lower mounting seat, and a movable groove is arranged at the bottom of the mold cavity inside the lower mounting seat, and an exhaust mechanism is arranged inside the movable groove, and the exhaust mechanism includes a pair of worm gears. The utility model has a simple and reasonable structure, a novel design, and is simple and convenient to operate, and can effectively exhaust the excess air in the mold cavity, improve the quality of part molding, and has a high practical value.

Description

A surface exhaust device for injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and more specifically, particularly relates to a surface exhaust device for an injection mold.

Background Art

An injection mold is a tool for producing plastic products; it is also a tool that gives plastic products a complete structure and precise dimensions; injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

Based on the above, the inventors have discovered the following problems: In the current injection molding process, a glue injection operation is required. When the glue is injected into the mold cavity, the air in the mold cavity is discharged. Due to the extremely high pressure of injection molding, it is difficult for the air to be discharged quickly from the mold cavity, causing the parting surface to expand, thereby causing flash on the molded parts, and even causing the mold to rupture due to excessive air pressure.

Therefore, in view of this, the existing structure and defects are studied and improved, and an injection mold surface exhaust device is provided to achieve a more practical purpose.

Utility Model Content

In order to solve the above technical problems, the utility model provides a planar exhaust device for an injection mold to solve the problems of the current background technology.

The purpose and effect of the surface exhaust device for injection mold of the utility model are achieved by the following specific technical means:

A surface exhaust device for an injection mold comprises a lower mounting seat and an upper mounting seat, wherein a base is mounted on the bottom of the lower mounting seat, and support columns are vertically mounted on the four corners of the top of the lower mounting seat, and the top ends of several of the support columns are interconnected with the upper mounting seat, a cylinder is mounted on the top of the upper mounting seat, and the bottom end of the cylinder is connected to an upper mold seat, a mold cavity is arranged inside the lower mounting seat, and the upper mold seat and the mold cavity are engaged with each other, a plurality of exhaust holes are evenly spaced on both sides of the mold cavity inside the lower mounting seat, and a movable groove is arranged inside the lower mounting seat at the bottom of the mold cavity, an exhaust mechanism is arranged inside the movable groove, and the exhaust mechanism comprises a pair of worm gears.

Furthermore, a pair of worms are installed on both sides of the interior of the movable groove, a motor is installed on the outer side of the lower mounting seat through a fixed plate, and the output end of the motor is transmission-connected to one of the worms.

Furthermore, a pair of rotating shafts are connected to both sides of the interior of the movable groove, and both ends of the pair of rotating shafts are interconnected with the inner wall of the movable groove, and a pair of worm gears are sleeved on the exterior of the pair of rotating shafts, and the worm gears and the worm are meshed with each other.

Furthermore, exhaust blocks are slidably installed on both sides of the interior of the mold cavity, and a pair of the exhaust blocks are both trapezoidal, and the bottoms of the pair of exhaust blocks are connected to racks, and the worm gear and the racks are meshed with each other.

Furthermore, a pair of worm gears are sleeved with synchronous wheels on their exteriors, and a synchronous belt is connected between the pair of synchronous wheels.

Furthermore, a pair of the exhaust blocks are connected to the top with a slide rod, the top of the lower mounting seat is installed with connecting blocks on both sides, and the inner sides of the pair of slide rods are inserted with limit rods, and both ends of the limit rods are connected to the connecting blocks.

Compared with the prior art, the utility model has the following beneficial effects:

This type of injection mold surface exhaust device is used in conjunction with a mold cavity, an exhaust hole, an exhaust block, a movable groove, a worm, a worm wheel, a rack, a synchronous wheel, a synchronous belt and a slide rod. When the parts are injection molded, the hot melted plastic is injected into the mold cavity by the injection molding machine at high pressure, and then the motor is started to drive one of the worms and the synchronous wheel to rotate. The synchronous wheel and the synchronous belt cooperate to make a pair of worms rotate at the same time, and the surface of the pair of worms is provided with a group of opposite spiral patterns, which can drive a pair of worm wheels to rotate. When the worm wheels rotate, the worm wheels and the racks mesh with each other, so that the racks can drive the exhaust. The air block moves to both sides. Because one side of the top of the exhaust block is inclined, the air is discharged from the lower mounting seat through the exhaust hole. Then the cylinder is started to drive the upper mold seat to move downward, so that the upper mold seat and the mold cavity are engaged with each other, and the hot-melt raw material is compressed and formed to obtain a formed part. By cooperating with a sliding rod and a limit rod, the movement of the exhaust block can be supported and balanced when a pair of exhaust blocks move. The utility model has a simple and reasonable structure, a novel design, and is simple and convenient to operate. It can effectively exhaust the excess air in the mold cavity, improve the quality of part molding, and has high practical value.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a three-dimensional schematic diagram of the utility model.

FIG. 2 is a perspective schematic diagram of the exhaust block of the present utility model.

FIG3 is a schematic plan cross-sectional view of the lower mounting seat of the present invention.

In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

1001, lower mounting seat; 1002, support column; 1003, upper mounting seat; 1004, base; 1005, cylinder; 1006, upper mold seat; 2001, mold cavity; 2002, exhaust hole; 2003, exhaust block; 2004, movable groove; 2005, motor; 2006, worm; 2007, worm wheel; 2008, rotating shaft; 2009, rack; 2010, synchronous wheel; 2011, synchronous belt; 2012, sliding rod; 2013, limit rod; 2014, connecting block.

DETAILED DESCRIPTION

The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

Example:

As shown in Figures 1 to 3:

The utility model provides a surface exhaust device for an injection mold, comprising a lower mounting seat 1001 and an upper mounting seat 1003, wherein a base 1004 is installed at the bottom of the lower mounting seat 1001, and support columns 1002 are vertically installed at the four corners of the top of the lower mounting seat 1001, and the tops of several support columns 1002 are connected to the upper mounting seat 1003, and a cylinder 1005 is installed at the top of the upper mounting seat 1003, and the bottom end of the cylinder 1005 is connected to the upper The mold base 1006, the interior of the lower mounting seat 1001 is provided with a mold cavity 2001, and the upper mold base 1006 and the mold cavity 2001 are engaged with each other, the interior of the lower mounting seat 1001 is provided with a plurality of exhaust holes 2002 at equal distances on both sides of the mold cavity 2001, and the interior of the lower mounting seat 1001 is provided with a movable groove 2004 at the bottom of the mold cavity 2001, the interior of the movable groove 2004 is provided with an exhaust mechanism, and the exhaust mechanism includes a pair of worm gears 2007.

Among them, a pair of worm gears 2006 are installed on both sides of the inside of the movable groove 2004, and a motor 2005 is installed on the outer side of the lower mounting seat 1001 through a fixed plate, and the output end of the motor 2005 is transmission-connected to one of the worm gears 2006. By installing the worm gears 2006 and providing a group of opposite spiral patterns on the surface of a pair of worm gears 2006, a pair of worm wheels 2007 can be driven to rotate in opposite directions.

Among them, a pair of rotating shafts 2008 are connected to both sides of the inside of the movable groove 2004, and the two ends of the pair of rotating shafts 2008 are interconnected with the inner wall of the movable groove 2004, and a pair of worm gears 2007 are sleeved on the outside of the pair of rotating shafts 2008, and the worm gears 2007 are meshed with the worm 2006.

Among them, exhaust blocks 2003 are slidably installed on both sides of the inside of the mold cavity 2001, and a pair of the exhaust blocks 2003 are both trapezoidal, and the bottoms of the pair of exhaust blocks 2003 are connected with racks 2009, and the worm gear 2007 and the rack 2009 are meshed with each other. By installing the rack 2009, when the worm gear 2007 rotates, the rack 2009 can drive the exhaust blocks 2003 to move.

The outer parts of the pair of worm gears 2006 are both sleeved with synchronous wheels 2010 , and a synchronous belt 2011 is connected between the pair of synchronous wheels 2010 . The synchronous belt 2011 can drive the pair of worm gears 2006 to rotate simultaneously.

Among them, the tops of a pair of exhaust blocks 2003 are connected with sliding rods 2012, and connecting blocks 2014 are installed on both sides of the top of the lower mounting seat 1001, and limiting rods 2013 are inserted on both sides of the inside of the pair of sliding rods 2012, and both ends of the limiting rods 2013 are interconnected with the connecting blocks 2014. By cooperating with the sliding rods 2012 and the limiting rods 2013, when a pair of exhaust blocks 2003 move, the movement of the exhaust blocks 2003 can be supported and balanced.

The specific usage and function of this embodiment are as follows:

When using this product, first check whether the connection of the product is tight. After ensuring that it is intact, when the parts are injection molded, the hot melted plastic is injected into the mold cavity 2001 by the injection molding machine at high pressure, and then the motor 2005 is started, so that the motor 2005 drives one of the worms 2006 and the synchronous wheel 2010 to rotate. The cooperation of the synchronous wheel 2010 and the synchronous belt 2011 makes the pair of worms 2006 rotate at the same time, and the surface of the pair of worms 2006 is provided with a group of opposite spiral patterns, which can drive a pair of worm wheels 2007 to rotate in the opposite direction. When the worm wheels 2007 rotate, the worm wheels 2007 and the synchronous belt 2011 are connected. The racks 2009 mesh with each other, so that the racks 2009 can drive the exhaust block 2003 to move to both sides. Because the top side of the exhaust block 2003 is inclined, the air is discharged from the lower mounting seat 1001 through the exhaust hole 2002, and then the cylinder 1005 is started to drive the upper mold base 1006 to move downward, so that the upper mold base 1006 and the mold cavity 2001 are engaged with each other, and the hot-melt raw materials are compressed and molded to obtain molded parts. By cooperating with the sliding rod 2012 and the limiting rod 2013, when a pair of exhaust blocks 2003 move, the movement of the exhaust blocks 2003 can be supported and balanced.

The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims (6)

1. An injection mold face exhaust apparatus, its characterized in that: including lower mount pad (1001) and last mount pad (1003), base (1004) are installed to the bottom of lower mount pad (1001), just support column (1002) are all vertically installed in the top four corners of lower mount pad (1001), a plurality of top and last mount pad (1003) interconnect of support column (1002), cylinder (1005) are installed at the top of going up mount pad (1003), just the bottom of cylinder (1005) is connected with upper die base (1006), the inside of lower mount pad (1001) is equipped with die cavity (2001), just upper die base (1006) and die cavity (2001) block each other, the inside of lower mount pad (1001) is equipped with a plurality of exhaust holes (2002) in the both sides equal distance of die cavity (2001), just the inside of lower mount pad (1001) is equipped with movable groove (2004) in the bottom of die cavity (2001), the inside of movable groove (2004) is equipped with exhaust mechanism, just exhaust mechanism includes a pair of worm wheel (2007).

2. The injection mold planar exhaust apparatus as claimed in claim 1, wherein: a pair of worms (2006) are arranged on two sides of the inside of the movable groove (2004), a motor (2005) is arranged on one side of the outside of the lower mounting seat (1001) through a fixed plate, and the output end of the motor (2005) is in transmission connection with one of the worms (2006).

3. The injection mold planar exhaust apparatus as claimed in claim 2, wherein: a pair of rotating shafts (2008) are connected to two sides of the inside of the moving groove (2004), two ends of the rotating shafts (2008) are connected to the inner wall of the moving groove (2004), a pair of worm gears (2007) are sleeved on the outsides of the rotating shafts (2008), and the worm gears (2007) are meshed with the worm gears (2006).

4. A face vent apparatus for an injection mold as claimed in claim 3, wherein: the inside both sides of die cavity (2001) slidable mounting have exhaust piece (2003), and a pair of exhaust piece (2003) are trapezoidal, and the bottom of a pair of exhaust piece (2003) all is connected with rack (2009), and worm wheel (2007) and rack (2009) intermesh.

5. The injection mold planar exhaust apparatus as claimed in claim 2, wherein: and a synchronizing wheel (2010) is sleeved outside each pair of worms (2006), and a synchronizing belt (2011) is connected between the pair of synchronizing wheels (2010).

6. The injection mold planar exhaust apparatus as claimed in claim 4, wherein: the top of a pair of exhaust block (2003) all is connected with slide bar (2012), connecting block (2014) are all installed to the top both sides of lower mount pad (1001), and a pair of inside both sides of slide bar (2012) all are inserted and are equipped with gag lever post (2013), both ends and connecting block (2014) interconnect of gag lever post (2013).