CN211763229U - Ejection mechanism of plastic injection mold - Google Patents

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

An ejector mechanism for a plastic injection mold

technical field

The utility model relates to the technical field of mold equipment, in particular to an ejection mechanism of a plastic injection mold.

Background technique

A plastic mold is a tool for producing plastic products. It consists of several groups of parts. This combination has a molding cavity. During injection molding, the mold is clamped on the injection molding machine, and the molten plastic is injected into the molding cavity. Internal cooling and setting, then the upper and lower molds are separated, and the product is ejected from the mold cavity to leave the mold through the ejection system. Finally, the mold is closed again for the next injection. The entire injection molding process is carried out in cycles, among which the ejector mechanism plays an important role .

Nowadays, the ejector mechanism of plastic injection molds has the disadvantages that the angle cannot be adjusted arbitrarily, the ejector pin is not easy to be replaced, and the ejector pin is easily worn out after repeated ejection.

In view of the above, in order to solve the problems that the angle of the ejector mechanism of the plastic injection mold cannot be adjusted arbitrarily, the ejector pin is not easy to be replaced, and the ejector pin is easily worn out after repeated ejection, an ejector mechanism of the plastic injection mold is proposed.

Utility model content

The purpose of the utility model is to provide an ejection mechanism of a plastic injection mold, which solves the problems in the background art that the angle of the ejection mechanism of the plastic injection mold cannot be adjusted arbitrarily, the ejector pin is not easy to replace, and the ejector pin is easily worn out after repeated ejection.

In order to achieve the above purpose, the utility model provides the following technical solutions: an ejection mechanism of a plastic injection mold, comprising a frame and an ejection mechanism, the ejection mechanism is installed in the inner cavity of the frame, and the frame includes a bottom plate, a support Column, template, guide column, mold core and mold, the bottom plate is installed on the lower end of the frame, the support column is installed on both sides of the upper end of the bottom plate, the template is installed on the upper end of the support column, the guide column is installed on both sides of the upper end of the template, the mold The kernel is installed on the upper end of the guide post, and the mold is installed on the upper end of the mold kernel;

The ejecting mechanism includes an ejecting plate, a ejecting post mechanism and a top opening, the ejecting plate is installed in the middle of the upper end of the bottom plate, the ejecting post mechanism is installed on the upper end of the ejecting plate, and the ejecting opening is installed in the inner cavity of the mold core.

Further, the top post mechanism includes a lift mechanism, a screw, an angle base, an adjustment handle and a top post, the lift mechanism is installed on the lower end of the top post mechanism, the screws are respectively installed on both sides of the upper end of the lift mechanism, and the angle base is installed on the lift mechanism. In the middle of the upper end, the adjusting handle is installed on one side of the angle base, and the top column is installed at the upper end of the angle base.

Further, the lifting mechanism includes a horizontal rod, a vertical rod, a base, a support column and a lifting chamber, the horizontal rod is installed on the lower end of the lifting mechanism, the vertical rods are respectively installed on both sides of the upper end of the horizontal rod, and the base is installed on the upper end of the horizontal rod. In the middle, the support columns are respectively installed on both sides of the upper end of the base, and the lift chamber is installed at the upper end of the support column.

Further, the lifting chamber includes a first connecting plate, a hydraulic rod, a second connecting plate, a pulley and a chain, the first connecting plate is installed at the lower end of the lifting chamber, the hydraulic rod is installed in the middle of the upper end of the first connecting plate, and the second The connecting plate is installed on the upper end of the hydraulic rod, the pulley is installed on both ends of the second connecting plate respectively, and the chain is installed on the upper end of the pulley.

Further, the top post includes a fixed block, an inner thimble, a needle cover, a spring, a card slot and a clip, the fixed block is installed on the lower end of the top column, the inner thimble is installed in the middle of the upper end of the fixed block, and the needle sleeve is installed on the inner thimble. Outside, the spring is installed in the inner cavity of the inner thimble, the card groove is installed on the edge of the needle sleeve, and the card nail is installed in the inner cavity of the card groove.

Further, the needle cover includes a graphite material, a stainless steel material, a protective layer and a rubber layer, the graphite material is installed on the outside of the needle cover, the stainless steel material is installed on the inside of the graphite material, the protective layer is installed on the inside of the stainless steel material, and the rubber layer is installed. on the inside of the protective layer.

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

1. The ejection mechanism of a plastic injection mold proposed by this utility model, the angle base is installed in the middle of the upper end of the lifting mechanism, and different injection molds have different ejection methods. It is very troublesome to replace, disassemble and install. The angle base can be manually adjusted to a suitable angle for fixing, which is convenient for the operator to use. Damage to the mold due to incorrect lifting position.

2. The ejector mechanism of a plastic injection mold proposed by the present utility model is installed on the edge of the needle sleeve through the card slot, and the clip is installed in the inner cavity of the card slot, and the top of the inner ejector can be replaced to meet different requirements. The needs of the mold, and the arrangement of the card slot and the card nail also facilitates the replacement of the worn inner thimble, which is further convenient for the operator to use.

3. The ejection mechanism of a plastic injection mold proposed by the utility model, the graphite material is installed on the outside of the needle sleeve, and the graphite material has good lubricating performance, which can make the ejection of the ejector more smooth and reduce the damage caused by repeated friction. Extends the service life of the device.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the partial structure schematic diagram of the present utility model;

3 is a schematic diagram of the top column mechanism of the present invention;

4 is a schematic diagram of the lifting mechanism of the utility model;

Fig. 5 is the top pillar structure schematic diagram of the present utility model;

Figure 6 is a schematic diagram of the structure of the needle cover of the present invention.

In the figure: 1, frame; 11, bottom plate; 12, support column; 13, template; 14, guide column; 15, mold core; 16, mold; 2, ejector mechanism; 21, ejector plate; 22, top Column mechanism; 221, lift mechanism; 2211, cross bar; 2212, vertical bar; 2213, base; 2214, support column; 2215, lift chamber; 22151, first connecting plate; 22152, hydraulic rod; 22153, second connecting plate ;22154, pulley; 22155, chain; 222, screw; 223, angle base; 224, adjusting handle; 225, top post; 2251, fixing block; 2252, inner thimble; 2253, needle cover; 22531, graphite material; 22532, Stainless steel material; 22533, protective layer; 22534, rubber layer; 2254, spring; 2255, card slot; 2256, staple; 23, top port.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Fig. 1-6, an ejection mechanism of a plastic injection mold, including a frame 1 and an ejection mechanism 2, the ejection mechanism 2 is installed in the inner cavity of the frame 1, and the frame 1 includes a bottom plate 11, a support column 12 , template 13, guide column 14, mold core 15 and mold 16, the bottom plate 11 is installed on the lower end of the frame 1, the support column 12 is installed on both sides of the upper end of the bottom plate 11, the template 13 is installed on the upper end of the support column 12, the guide column 14 are respectively installed on both sides of the upper end of the template 13, the mold core 15 is installed on the upper end of the guide column 14, the mold 16 is installed on the upper end of the mold core 15, and the ejector mechanism 2 includes the ejector plate 21, the ejector mechanism 22 and the top port 23 , the ejector plate 21 is installed in the middle of the upper end of the bottom plate 11, the ejector mechanism 22 is installed on the upper end of the ejector plate 21, and the ejector mechanism 22 includes a lifting mechanism 221, a screw 222, an angle base 223, an adjustment handle 224 and a ejector 225, The lifting mechanism 221 is installed on the lower end of the top column mechanism 22. The lifting mechanism 221 includes a horizontal rod 2211, a vertical rod 2212, a base 2213, a support column 2214 and a lifting chamber 2215. The horizontal rod 2211 is installed on the lower end of the lifting mechanism 221, and the vertical rods 2212 are respectively Installed on both sides of the upper end of the cross bar 2211, the base 2213 is installed in the middle of the upper end of the cross bar 2211, the support columns 2214 are installed on both sides of the upper end of the base 2213, the lift chamber 2215 is installed on the upper end of the support column 2214, and the lift chamber 2215 includes the first A 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 lift chamber 2215. The hydraulic rod 22152 is installed at the middle of the upper end of the first connecting plate 22151. The connecting plate 22153 is installed on the upper end of the hydraulic rod 22152, the pulleys 22154 are installed on the two ends of the second connecting plate 22153 respectively, and the chain 22155 is installed on the upper end of the pulley 22154, which can ensure the linear lifting of the bottom of the ejector mechanism and prevent the lifting due to the wrong position. To cause damage to the mold, the screws 222 are installed on both sides of the upper end of the lifting mechanism 221, and the angle base 223 is installed in the middle of the upper end of the lifting mechanism 221. Different injection molds have different ejection methods. If the molds are different, the inner ejector pin 2252 is also It needs to be replaced according to the general shape of the mold. It is very troublesome to disassemble and install. The angle base 223 can be manually adjusted to a suitable angle for fixing, which is convenient for the operator to use. The adjustment handle 224 is installed on one side of the angle base 223. The column 225 is installed on the upper end of the angle base 223. The top column 225 includes a fixing block 2251, an inner ejector pin 2252, a needle sleeve 2253, a spring 2254, a clamping slot 2255 and a clamping nail 2256. The fixing block 2251 is installed on the lower end of the upper column 225, and the inner ejector pin 2252 is installed in the middle of the upper end of the fixing block 2251, the needle sleeve 2253 is installed outside the inner thimble 2252, the needle sleeve 2253 includes graphite material 22531, stainless steel material 22532, protective layer 22 533 and rubber layer 22534. The graphite material 22531 is installed on the outside of the needle sleeve 2253. The graphite material 22531 has good lubricating performance, which can make the ejector pin more smoothly, reduce the damage caused by repeated friction, and prolong the service life of the device. Stainless steel The material 22532 is installed on the inside of the graphite material 22531, the protective layer 22533 is installed on the inside of the stainless steel material 22532, the rubber layer 22534 is installed on the inside of the protective layer 22533, the spring 2254 is installed in the inner cavity of the inner thimble 2252, and the card slot 2255 is installed in the needle sleeve On the edge of 2253, the staple 2256 is installed in the inner cavity of the card slot 2255, and the top of the inner thimble 2252 can be replaced to meet the needs of different molds, and the setting of the card slot 2255 and the staple 2256 is also convenient for wear The inner ejector pin 2252 is replaced, which is further convenient for the operator to use, and the ejector port 23 is installed in the inner cavity of the mold core 15 .

To sum up: the ejection mechanism of a plastic injection mold proposed by the present utility model includes a frame 1 and an ejection mechanism 2, the ejection mechanism 2 is installed in the inner cavity of the frame 1, and the angle base 223 is installed in the lift mechanism In the middle of the upper end of 221, different injection molds have different ejection methods. If the molds are different, the inner ejector pin 2252 also needs to be replaced according to the general shape of the mold. It is very troublesome to disassemble and install. The angle base 223 can manually adjust the appropriate angle It is convenient for the operator to use, and the chain 22155 is installed on the upper end of the pulley 22154, which can ensure the linear lifting of the bottom of the ejector mechanism and prevent the damage to the mold caused by the wrong lifting position. On the edge of the sleeve 2253, the staple 2256 is installed in the inner cavity of the card slot 2255, and the top of the inner ejector 2252 can be replaced to meet the needs of different molds, and the setting of the card slot 2255 and the staple 2256 is also convenient for wear and tear. The inner thimble 2252 can be replaced, which is further convenient for the operator to use. The graphite material 22531 is installed on the outer side of the needle sleeve 2253. The graphite material 22531 has good lubricating performance, which can make the thimble eject more smoothly, reduce the damage caused by repeated friction, and prolong the the service life of the device.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

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

Claims (6)

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).

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