CN218966002U - Buffering mechanism of compression type mold injection mold - Google Patents

Abstract

The utility model provides a pressing-type die injection die buffer mechanism, which relates to the technical field of injection dies and comprises a first fixing plate and a second fixing plate, wherein the buffer mechanism is arranged at the top of the first fixing plate and at the four corners of the bottom of the second fixing plate, the buffer mechanism comprises a sleeve and a slide bar, the sleeve is arranged at the top of the first fixing plate, the slide bar is arranged at the bottom of the second fixing plate, the slide bar can slide in the sleeve, a pressure cylinder is arranged at the inner bottom of the sleeve, a separation cylinder is arranged at the inner top of the pressure cylinder, a first through hole is formed in the bottom of the separation cylinder, a pair of second through holes are formed in the side face of the separation cylinder, a piston sheet is connected in a sliding manner in the separation cylinder, and a piston rod is connected in a sliding manner at the top of the pressure cylinder. The utility model has a good buffering effect on the upper die holder, gives enough time for workers to break away from dangerous areas, and improves the safety performance of the device.

Description

Buffering mechanism of compression type mold injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a buffer mechanism of an injection mold of a pressing type mold.

Background

The injection mold is a tool for producing plastic products, and also a tool for endowing the plastic products with complete structures and precise dimensions, and the injection molding is a processing method used for mass production of parts with complex shapes, specifically, the injection mold is used for injecting heated and melted plastic into a mold cavity at high pressure by an injection molding machine, and cooling and solidifying are carried out to obtain the formed products.

The Chinese utility model patent with publication number of CN210880621U discloses a buffer mechanism of a compression mold injection mold, which is disclosed in the year of 2020, month 6 and day 30,

the die comprises a lower fixed mounting plate, a lower die is fixedly mounted at the top of the lower fixed mounting plate, an upper die device is contacted with the top of the lower die, and an upper fixed mounting plate is fixedly connected to the top of the upper die device. According to the pressing type injection mold buffer mechanism, through the mutual matching of the fixed sleeve, the movable loop bar and the second spring, when the mold is opened, even if a machine fails, the upper mold device cannot fall down rapidly, because gas exists in the second spring, when the movable loop bar descends, the gas can only be discharged from the air hole at the bottom of the fixed sleeve, but the diameter of the air hole is smaller and cannot be emptied rapidly, so that air pressure is generated in the second spring, the upper mold device can be buffered well, enough time is provided for workers to break away from a dangerous area, and the safety performance of the device is improved;

according to the technical scheme, the fixed sleeve, the movable sleeve rod and the second spring are matched with each other, when the die is opened, even if a machine fails, the upper die device cannot fall down rapidly, because gas exists in the second spring, when the movable sleeve rod descends, the gas can only be discharged from the air hole at the bottom of the fixed sleeve, but the diameter of the air hole is smaller and cannot be emptied rapidly, so that air pressure is generated in the second spring, the upper die device can be buffered well, enough time is given for workers to break away from a dangerous area, and the safety performance of the device is improved; however, the second spring is an energy storage element, absorbs energy after being pressed, and then releases the energy, so that the upper fixing mounting plate repeatedly bounces up and falls, and during this period, the second spring may collide with a user, thereby bringing a hidden danger to the user.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a buffer mechanism for an injection mold of a press-fit mold, which solves the problems mentioned in the background art.

The aim and the effect of the buffer mechanism of the compression type mold injection mold are achieved by the following specific technical means:

the utility model provides a pressfitting formula mould injection mold buffer gear, includes first fixed plate and second fixed plate, buffer gear is all installed to the bottom four corners of first fixed plate's top and second fixed plate, buffer gear includes sleeve and slide bar, the top at first fixed plate is installed to the sleeve, the bottom at the second fixed plate is installed to the slide bar, just the slide bar can slide in telescopic inside, pressure cylinder is installed to telescopic inner bottom, just separate the section of thick bamboo is installed at pressure cylinder's interior top, first through-hole has been seted up to separate the bottom of section of thick bamboo, a pair of second through-hole has been seted up to separate the side of section of thick bamboo, separate the inside sliding connection of section of thick bamboo has the piston piece, the top sliding connection of pressure cylinder has the piston rod, just the piston rod is connected with the piston piece, the piston rod can extrude each other with the slide bar, separate the inside of section of thick bamboo and be equipped with hydraulic oil.

Further, the bottom of the sleeve is connected with a spring, the pressure cylinder is positioned at the inner ring of the spring, and the sliding rod and the spring can be mutually extruded.

Further, the top of the spring is flush with the sleeve, and one end of the piston rod is flush with the top of the spring.

Further, be equipped with a pair of fixed establishment between first fixed plate and the second fixed plate, fixed establishment includes the dead lever, the dead lever is installed at the top of first fixed plate, the fixed slot has been seted up to the inside of second fixed plate, the dead lever can slide in the inside of fixed slot, the holding tank has been seted up to the top both sides of dead lever, just the inside of holding tank has the pivot through bearing connection, is connected with the wind spring between pivot and the holding tank, and the fixed block is installed in the outside of pivot, the fixed block extrudees mutually with the top of second fixed plate.

Further, the center department at first fixed plate top installs the die holder, the center department at second fixed plate bottom installs the upper die base, the center department at second fixed plate top installs the pipe of moulding plastics, the injection molding groove has been seted up at the top of pipe of moulding plastics.

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

before the lower die holder and the upper die holder are contacted with each other, the sliding rod slides into the sleeve and is propped against the piston rod, the piston rod is pushed to move downwards, when the piston rod moves downwards, the piston plate extrudes hydraulic oil in the separation cylinder and flows out of the first through hole, more and more hydraulic oil is extruded out of the first through hole along with the continued downward movement of the piston rod, and then returns to the separation cylinder through the second through hole and is positioned above the piston plate, so that the piston plate makes circular reciprocating linear motion in the hydraulic oil, further, a part of impact force can be counteracted, after the impact force disappears, the sliding rod is reset under the action of the spring, and finally, a good buffer effect is achieved on the upper die holder, enough time is provided for workers to separate from a dangerous area, and the safety performance of the device is improved.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

FIG. 3 is a cross-sectional view of the cushioning mechanism of the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

100. a first fixing plate; 200. a buffer mechanism; 2001. a sleeve; 2002. a slide bar; 2003. a spring; 2004. a pressure cylinder; 2005. a separation cylinder; 2006. a piston rod; 2007. a piston plate; 2008. a first through hole; 2009. a second through hole; 300. a second fixing plate; 400. injection molding a tube; 500. a fixing mechanism; 5001. a fixed rod; 5002. a fixing groove; 5003. a fixed block; 5004. a receiving groove; 600. and (5) a lower die holder.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

as shown in fig. 1 to 3:

the utility model provides a buffer mechanism of a compression-type injection mold, which comprises a first fixed plate 100 and a second fixed plate 300, wherein the top of the first fixed plate 100 and the four corners of the bottom of the second fixed plate 300 are respectively provided with the buffer mechanism 200, the buffer mechanism 200 comprises a sleeve 2001 and a slide bar 2002, the sleeve 2001 is arranged at the top of the first fixed plate 100, the slide bar 2002 is arranged at the bottom of the second fixed plate 300, the slide bar 2002 can slide in the sleeve 2001, a pressure cylinder 2004 is arranged at the inner bottom of the sleeve 2001, a separation cylinder 2005 is arranged at the inner top of the pressure cylinder 2004, a first through hole 2008 is formed at the bottom of the separation cylinder 2005, a pair of second through holes 2009 are formed at the side surface of the separation cylinder 2005, a piston plate 2007 is connected in a sliding manner to the inner part of the separation cylinder 2005, a piston rod 2006 is connected with the top of the pressure cylinder 2004 in a sliding manner, the piston rod 2006 and the slide bar 2007 can mutually extrude the piston rod 2006 and the slide bar 2002, the inside of the separation cylinder 2005 is provided with hydraulic oil, before the lower die holder 600 and the upper die holder are contacted with each other, the sliding rod 2002 can slide into the sleeve 2001 and prop against the piston rod 2006, then the piston rod 2006 can be pushed to move downwards, when the piston rod 2006 moves downwards, the piston rod 2007 can squeeze the hydraulic oil in the separation cylinder 2005 and flow out of the first through hole 2008, as the piston rod 2006 moves downwards, more and more hydraulic oil is squeezed out of the first through hole 2008, then returns into the separation cylinder 2005 through the second through hole 2009 and is positioned above the piston rod 2007, so that the piston rod 2007 makes circular reciprocating linear motion in the hydraulic oil, further, a part of impact force can be offset, after the impact force disappears, the sliding rod 2002 can reset under the action of the spring 2003, finally a good buffer effect is provided for the upper die holder, enough time is provided for workers to break away from dangerous areas, the safety performance of the device is improved.

The bottom of the sleeve 2001 is connected with a spring 2003, the pressure cylinder 2004 is located at the inner ring of the spring 2003, and the sliding rod 2002 can be mutually extruded with the spring 2003.

Wherein the top of the spring 2003 is flush with the sleeve 2001, and one end of the piston rod 2006 is flush with the top of the spring 2003, enabling the slide rod 2002 to compress the spring 2003 and the piston rod 2006 at a first time after sliding into the sleeve 2001, and enabling simultaneous compression of the spring 2003 and the piston rod 2006.

Wherein, be equipped with a pair of fixed establishment 500 between first fixed plate 100 and the second fixed plate 300, fixed establishment 500 includes dead lever 5001, dead lever 5001 installs at the top of first fixed plate 100, dead slot 5002 has been seted up to the inside of second fixed plate 300, dead lever 5001 can slide in the inside of dead slot 5002, holding tank 5004 has been seted up to the top both sides of dead lever 5001, and the inside of holding tank 5004 is connected with the pivot through the bearing, be connected with the wind spring between pivot and the holding tank 5004, fixed block 5003 is installed in the outside of pivot, the top of fixed block 5003 and second fixed plate 300 extrudees each other.

Wherein, the center of the top of the first fixing plate 100 is provided with a lower die holder 600, the center of the bottom of the second fixing plate 300 is provided with an upper die holder, the center of the top of the second fixing plate 300 is provided with an injection molding pipe 400, and the top of the injection molding pipe 400 is provided with an injection molding groove.

Specific use and action of the embodiment:

when the product is used, firstly, whether the connecting part of the product is fastened is detected, after the product is ensured to be intact, the product is placed at a designated position, then the fixing groove 5002 is aligned with the fixing rod 5001, then the first fixing plate 100 is placed down, the lower die holder 600 and the upper die holder are in contact with each other, before the sliding rod 2002 slides into the sleeve 2001 and is propped against the piston rod 2006, then the piston rod 2006 is pushed to move downwards, when the piston rod 2006 moves downwards, the piston rod 2007 is enabled to squeeze hydraulic oil in the separating cylinder 2005 and enable the hydraulic oil to flow out of the first through hole 2008, more and more hydraulic oil is squeezed out of the first through hole 2008 along with the continued downward movement of the piston rod 2006, and then returns into the separating cylinder 2005 through the second through hole 2009 and is positioned above the piston rod 2007, so that the piston rod 2007 makes circular reciprocating rectilinear motion in the hydraulic oil, and further, a part of impact force can be counteracted, after the impact force disappears, the piston rod 2007 is reset under the action of the spring 2003, finally, a good buffering effect is achieved on the upper die holder, a worker is enabled to be enough to separate from a dangerous area, and safety performance of the device is improved.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (5)

1. The utility model provides a pressfitting formula mould injection mold buffer gear which characterized in that: including first fixed plate (100) and second fixed plate (300), buffer unit (200) are all installed at the bottom four corners of the top of first fixed plate (100) and second fixed plate (300), buffer unit (200) include sleeve (2001) and slide bar (2002), sleeve (2001) are installed at the top of first fixed plate (100), slide bar (2002) are installed at the bottom of second fixed plate (300), just slide bar (2002) can slide in the inside of sleeve (2001), pressure cylinder (2004) are installed to the interior bottom of sleeve (2001), just pressure cylinder (2004) are installed at the interior top of pressure cylinder (2004), first through-hole (2008) have been seted up to the bottom of pressure cylinder (2005), a pair of second through-hole (2009) have been seted up to the side of separation cylinder (2005), the inside sliding connection of separation cylinder (2005) has piston plate (2007), the top sliding connection of pressure cylinder (2004) has piston rod (2006), just piston rod (2006) are connected with piston plate (2006) and piston plate (2002), but piston rod (2006) are connected with piston rod (2005) inside extrusion cylinder (2005).

2. The compression mold injection mold buffer mechanism of claim 1, wherein: the bottom of the sleeve (2001) is connected with a spring (2003), the pressure cylinder (2004) is positioned at the inner ring of the spring (2003), and the sliding rod (2002) and the spring (2003) can be mutually extruded.

3. The compression mold injection mold buffer mechanism of claim 2, wherein: the top of the spring (2003) is flush with the sleeve (2001), and one end of the piston rod (2006) is flush with the top of the spring (2003).

4. The compression mold injection mold buffer mechanism of claim 1, wherein: a pair of fixing mechanisms (500) are arranged between the first fixing plate (100) and the second fixing plate (300), each fixing mechanism (500) comprises a fixing rod (5001), each fixing rod (5001) is arranged at the top of the first fixing plate (100), a fixing groove (5002) is formed in each second fixing plate (300), each fixing rod (5001) can slide in each fixing groove (5002), each accommodating groove (5004) is formed in each top of each fixing rod (5001), a rotating shaft is connected to the corresponding accommodating groove (5004) through a bearing, a coil spring is connected between each rotating shaft and each accommodating groove (5004), each fixing block (5003) is arranged on the outer side of each rotating shaft, and the tops of each fixing block (5003) and each second fixing plate (300) are extruded mutually.

5. The compression mold injection mold buffer mechanism of claim 1, wherein: the lower die holder (600) is installed at the center department at first fixed plate (100) top, the upper die holder is installed at the center department at second fixed plate (300) bottom, injection molding pipe (400) is installed at the center department at second fixed plate (300) top, injection molding groove has been seted up at the top of injection molding pipe (400).

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