CN211763229U

CN211763229U - Ejection mechanism of plastic injection mold

Info

Publication number: CN211763229U
Application number: CN202020101340.4U
Authority: CN
Inventors: 王庆朴; 王仁超
Original assignee: Dalian Linfeng Precision Molding Co ltd
Current assignee: Dalian Linfeng Precision Molding Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-27
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses an ejection mechanism of a plastic injection mold, which comprises a frame and an ejection mechanism, wherein the ejection mechanism is arranged in an inner cavity of the frame, an angle base is arranged in the middle of the upper end of a lifting mechanism, different injection molds have different ejection modes, if the molds are different, an inner thimble also needs to be replaced according to the general shape of the mold, the disassembly and the installation are very troublesome, the angle base can be manually adjusted to an appropriate angle for fixing, the use of operators is convenient, a chain is arranged at the upper end of a pulley, the straight line lifting at the bottom of the ejection mechanism can be ensured, the damage to the mold caused by the incorrect lifting position is prevented, the ejection mechanism is arranged at the edge of a needle sleeve through a clamping groove, a staple bolt is arranged in the inner cavity of the clamping groove, the top of the ejector thimble can be replaced along with the top of the thimble, so as to meet the requirements of different molds, and the arrangement, further facilitating the use of operators.

Description

Ejection mechanism of plastic injection mold

Technical Field

The utility model relates to a mould equipment technical field specifically is a plastics injection mold's ejection mechanism.

Background

A plastic mould is a tool for producing plastic products, which is composed of several groups of parts, and the combination has a moulding cavity, when in injection, the mould is clamped on an injection moulding machine, molten plastic is injected into the moulding cavity and cooled and shaped in the cavity, then the upper mould and the lower mould are separated, the product is ejected out of the mould from the moulding cavity by an ejection system, finally the mould is closed again for next injection, the whole injection process is carried out circularly, wherein, the ejection mechanism plays an important role.

The existing ejection mechanism of the plastic injection mold has the defects that the angle can not be adjusted at will, an ejector pin is not easy to replace, and the ejector pin is ejected repeatedly and is easy to wear.

In order to solve the problems that the angle of the ejection mechanism of the plastic injection mold can not be adjusted randomly, the ejector pin is not easy to replace, and the ejector pin is repeatedly ejected and is easy to wear, the ejection mechanism of the plastic injection mold is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastics injection mold's ejection mechanism, the ejection mechanism angle that has solved plastics injection mold among the background art can not be adjusted wantonly, the thimble is difficult for following the problem of trading and the thimble is ejecting easily wearing and tearing repeatedly.

In order to achieve the above object, the utility model provides a following technical scheme: an ejection mechanism of a plastic injection mold comprises a rack and the ejection mechanism, wherein the ejection mechanism is arranged in an inner cavity of the rack, the rack comprises a bottom plate, support columns, a template, guide columns, mold cores and a mold, the bottom plate is arranged at the lower end of the rack, the support columns are respectively arranged at two sides of the upper end of the bottom plate, the template is arranged at the upper ends of the support columns, the guide columns are respectively arranged at two sides of the upper end of the template, the mold cores are arranged at the upper ends of the guide columns, and the mold is;

the ejection mechanism comprises an ejection plate, an ejection column mechanism and an ejection opening, the ejection plate is mounted in the middle of the upper end of the bottom plate, the ejection column mechanism is mounted at the upper end of the ejection plate, and the ejection opening is mounted in an inner cavity of the mold core.

Further, the support pillar mechanism comprises a lifting mechanism, screws, an angle base, an adjusting handle and a support pillar, the lifting mechanism is installed at the lower end of the support pillar mechanism, the screws are installed on two sides of the upper end of the lifting mechanism respectively, the angle base is installed in the middle of the upper end of the lifting mechanism, the adjusting handle is installed on one side of the angle base, and the support pillar is installed at the upper end of the angle base.

Further, elevating system includes horizontal pole, montant, base, support column and lift room, and the horizontal pole is installed at elevating system's lower extreme, and the montant is installed respectively in the upper end both sides of horizontal pole, and the pedestal mounting is at the upper end middle part of horizontal pole, and the upper end both sides at the base are installed respectively to the support column, and the upper end at the support column is installed to the lift room.

Further, the lift room includes first connecting plate, hydraulic stem, second connecting plate, pulley and chain, and the lower extreme at the lift room is installed to first connecting plate, and the hydraulic stem is installed in the upper end middle part of first connecting plate, and the upper end at the hydraulic stem is installed to the second connecting plate, and the pulley is installed respectively at the both ends of second connecting plate, and the upper end at the pulley is installed to the chain.

Further, the fore-set includes fixed block, interior thimble, needle cover, spring, draw-in groove and bail, and the lower extreme at the fore-set is installed to the fixed block, and the upper end middle part at the fixed block is installed to interior thimble, and the outside of thimble including the needle cover installation, the inner chamber of thimble including the spring mounting, the edge at the needle cover is installed to the draw-in groove, and the inner chamber at the draw-in groove is installed to the bail.

Further, the needle cover comprises a graphite material, a stainless steel material, a protective layer and a rubber layer, wherein the graphite material is arranged on the outer side of the needle cover, the stainless steel material is arranged on the inner side of the graphite material, the protective layer is arranged on the inner side of the stainless steel material, and the rubber layer is arranged on the inner side of the protective layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a pair of plastics injection mold's ejection mechanism, angle pedestal mounting is at elevating system's upper end middle part, different injection moulds have different ejecting modes, if the mould is different, interior thimble also need change according to the approximate shape of mould, it is all very troublesome with the installation to dismantle, the angle base can be fixed by the suitable angle of manual regulation, the use of operating personnel has been made things convenient for, and the chain is installed in the upper end of pulley, can guarantee the sharp lift of ejection mechanism bottom, prevent because of the not right damage that causes the mould of elevating position.

2. The utility model provides a pair of plastics injection mold's ejection mechanism installs at the edge of needle cover through the draw-in groove, and the bail is installed at the inner chamber of draw-in groove, can follow the top of internal thimble and trade to satisfy the needs of different moulds, and the draw-in groove also makes things convenient for the interior thimble of wearing and tearing to change with setting up of bail, further makes things convenient for operating personnel to use.

3. The utility model provides a pair of plastics injection mold's ejection mechanism, graphite material install in the outside of needle cover, and graphite material has fine lubricating property, can make the thimble ejecting more smooth, reduces the damage that friction repeatedly caused, has prolonged the life of device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

fig. 3 is a schematic view of the post mechanism of the present invention;

fig. 4 is a schematic view of the lifting mechanism of the present invention;

fig. 5 is a schematic view of the structure of the top pillar of the present invention;

fig. 6 is a schematic view of the needle guard structure of the present invention.

In the figure: 1. a frame; 11. a base plate; 12. bracing columns; 13. a template; 14. a guide post; 15. a mold core; 16. a mold; 2. an ejection mechanism; 21. ejecting the plate; 22. a jack post mechanism; 221. a lifting mechanism; 2211. a cross bar; 2212. a vertical rod; 2213. a base; 2214. a support pillar; 2215. a lifting chamber; 22151. a first connecting plate; 22152. a hydraulic lever; 22153. a second connecting plate; 22154. a pulley; 22155. a chain; 222. a screw; 223. an angle base; 224. an adjusting handle; 225. a top pillar; 2251. a fixed block; 2252. an inner thimble; 2253. a needle sleeve; 22531. a graphite material; 22532. stainless steel material; 22533. a protective layer; 22534. a rubber layer; 2254. a spring; 2255. a card slot; 2256. a staple bolt; 23. and (4) top opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, an ejection mechanism of a plastic injection mold comprises a frame 1 and an ejection mechanism 2, wherein the ejection mechanism 2 is installed in an inner cavity of the frame 1, the frame 1 comprises a bottom plate 11, support columns 12, a mold plate 13, guide columns 14, a mold core 15 and a mold 16, the bottom plate 11 is installed at a lower end of the frame 1, the support columns 12 are respectively installed at two sides of an upper end of the bottom plate 11, the mold plate 13 is installed at an upper end of the support columns 12, the guide columns 14 are respectively installed at two sides of an upper end of the mold plate 13, the mold core 15 is installed at an upper end of the guide columns 14, the mold 16 is installed at an upper end of the mold core 15, the ejection mechanism 2 comprises an ejection plate 21, an ejection column mechanism 22 and an ejection opening 23, the ejection plate 21 is installed at a middle portion of the upper end of the bottom plate 11, the ejection column mechanism 22 is installed at an upper end of the ejection plate 21, the ejection column, the lifting mechanism 221 comprises a cross bar 2211, vertical bars 2212, a base 2213, support columns 2214 and lifting chambers 2215, the cross bar 2211 is installed at the lower end of the lifting mechanism 221, the vertical bars 2212 are respectively installed at two sides of the upper end of the cross bar 2211, the base 2213 is installed at the middle of the upper end of the cross bar 2211, the support columns 2214 are respectively installed at two sides of the upper end of the base 2213, the lifting chambers 2215 are installed at the upper end of the support columns 2214, each lifting chamber 2215 comprises a first connecting plate 22151, a hydraulic rod 22152, a second connecting plate 22153, a pulley 22154 and a chain 22155, the first connecting plate 22151 is installed at the lower end of the lifting chamber 2215, the hydraulic rod 22152 is installed at the middle of the upper end of the first connecting plate 22151, the second connecting plate 22153 is installed at the upper end of the hydraulic rod 22152, the pulleys 22154 are respectively installed at two ends of the second connecting plate 22153, the chain 22155 is installed, the screws 222 are respectively installed on two sides of the upper end of the lifting mechanism 221, the angle base 223 is installed in the middle of the upper end of the lifting mechanism 221, different injection molds have different ejection modes, if the molds are different, the inner thimble 2252 also needs to be replaced according to the general shape of the mold, the disassembly and the installation are very troublesome, the angle base 223 can be manually adjusted to an appropriate angle for fixing, the use of an operator is facilitated, the adjusting handle 224 is installed on one side of the angle base 223, the thimble 225 is installed on the upper end of the angle base 223, the thimble 225 comprises a fixing block 2251, an inner thimble 2252, a needle sleeve 2253, a spring 2254, a clamping groove 2255 and a clamp 2256, the fixing block 2251 is installed at the lower end of the thimble 225225, the inner thimble 2252 is installed in the middle of the upper end of the fixing block 2251, the needle sleeve 2253 is installed on the outer side of the inner thimble 2252, the needle sleeve 2253 comprises graphite 225, graphite 22531 is mounted outside needle 2253, graphite 22531 has very good lubricating properties, can make the thimble eject more smoothly, reduce the damage that repeated friction causes, the life of the device has been prolonged, stainless 22532 is mounted inside graphite 22531, protective layer 22533 is mounted inside stainless 22532, rubber layer 22534 is mounted inside protective layer 22533, the inner chamber of thimble 2252 in spring 2254 is mounted, draw-in groove 2255 is mounted at the edge of needle 2253, staple 2256 is mounted in the inner chamber of draw-in groove 2255, can follow up the top of thimble 2252, in order to meet the needs of different moulds, and the arrangement of draw-in groove 2255 and staple 2256 also makes things convenient for changing the worn inner thimble 2252, further facilitate the operating personnel to use, the top 23 is mounted in the inner chamber of mould core 15.

In summary, the following steps: the utility model provides an ejection mechanism of plastic injection mold, including frame 1 and ejection mechanism 2, ejection mechanism 2 installs the inner chamber in frame 1, angle base 223 installs at the upper end middle part of elevating system 221, different injection molds have different ejecting modes, if the mould is different, interior thimble 2252 also need change according to the roughly shape of mould, it is all very troublesome to dismantle and install, angle base 223 can manually adjust suitable angle and fix, the use of operating personnel is made things convenient for, and chain 22155 installs in the upper end of pulley 22154, can guarantee the straight line lift of ejection mechanism bottom, prevent to the damage to the mould because the elevating position is not right, install the edge at needle cover 2253 through draw-in groove 2255, the inner chamber at draw-in groove 2255 is installed to bail 2256, can follow the top of interior thimble 2 and change, in order to satisfy the needs of different moulds, and draw-in groove 2255 also makes things convenient for the interior thimble 2252 that has the wearing and tearing to change with staple 2256's setting, further makes things convenient for operating personnel to use, and graphite material 22531 installs in the outside of needle cover 2253, and graphite material 22531 has fine lubricating property, can make the thimble ejecting more smooth, reduces the damage that repeated friction caused, has prolonged the life of device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a plastics injection mold's ejection mechanism, includes frame (1) and ejection mechanism (2), and the inner chamber in frame (1), its characterized in that are installed in ejection mechanism (2): the machine frame (1) comprises a bottom plate (11), support columns (12), a template (13), guide pillars (14), a mold core (15) and a mold (16), wherein the bottom plate (11) is installed at the lower end of the machine frame (1), the support columns (12) are installed on two sides of the upper end of the bottom plate (11) respectively, the template (13) is installed at the upper end of the support columns (12), the guide pillars (14) are installed on two sides of the upper end of the template (13) respectively, the mold core (15) is installed at the upper end of the guide pillars (14), and the mold (16) is installed at the upper end of the mold core (;

the ejection mechanism (2) comprises an ejection plate (21), an ejection column mechanism (22) and an ejection opening (23), the ejection plate (21) is installed in the middle of the upper end of the bottom plate (11), the ejection column mechanism (22) is installed at the upper end of the ejection plate (21), and the ejection opening (23) is installed in an inner cavity of the mold core (15).

2. The ejection mechanism of a plastic injection mold according to claim 1, wherein: the ejection column mechanism (22) comprises an elevating mechanism (221), a screw (222), an angle base (223), an adjusting handle (224) and an ejection column (225), the elevating mechanism (221) is installed at the lower end of the ejection column mechanism (22), the screw (222) is installed on two sides of the upper end of the elevating mechanism (221) respectively, the angle base (223) is installed in the middle of the upper end of the elevating mechanism (221), the adjusting handle (224) is installed on one side of the angle base (223), and the ejection column (225) is installed at the upper end of the angle base (223).

3. The ejection mechanism of a plastic injection mold according to claim 2, wherein: elevating system (221) includes horizontal pole (2211), montant (2212), base (2213), support column (2214) and lift room (2215), the lower extreme at elevating system (221) is installed in horizontal pole (2211), the upper end both sides at horizontal pole (2211) are installed respectively in montant (2212), the upper end middle part at horizontal pole (2211) is installed in base (2213), the upper end both sides at base (2213) are installed respectively in support column (2214), the upper end at support column (2214) is installed in lift room (2215).

4. The ejection mechanism of a plastic injection mold according to claim 3, wherein: the lifting chamber (2215) comprises a first connecting plate (22151), a hydraulic rod (22152), a second connecting plate (22153), a pulley (22154) and a chain (22155), the first connecting plate (22151) is installed at the lower end of the lifting chamber (2215), the hydraulic rod (22152) is installed in the middle of the upper end of the first connecting plate (22151), the second connecting plate (22153) is installed at the upper end of the hydraulic rod (22152), the pulleys (22154) are installed at two ends of the second connecting plate (22153) respectively, and the chain (22155) is installed at the upper end of the pulley (22154).

5. The ejection mechanism of a plastic injection mold according to claim 2, wherein: the thimble (225) is including fixed block (2251), interior thimble (2252), needle cover (2253), spring (2254), draw-in groove (2255) and bail (2256), the lower extreme at thimble (225) is installed in fixed block (2251), upper end middle part at fixed block (2251) is installed in interior thimble (2252), the outside of thimble (2252) is installed in needle cover (2253), the inner chamber of thimble (2252) is installed in spring (2254), the edge at needle cover (2253) is installed in draw-in groove (2255).

6. The ejection mechanism of a plastic injection mold according to claim 5, wherein: the needle sleeve (2253) comprises a graphite material (22531), a stainless steel material (22532), a protective layer (22533) and a rubber layer (22534), wherein the graphite material (22531) is mounted on the outside of the needle sleeve (2253), the stainless steel material (22532) is mounted on the inside of the graphite material (22531), the protective layer (22533) is mounted on the inside of the stainless steel material (22532), and the rubber layer (22534) is mounted on the inside of the protective layer (22533).